Merge tag 'drm-misc-next-2024-04-25' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v6.10-rc1:

UAPI Changes:

Cross-subsystem Changes:
- Devicetree updates for rockchip (#sound-dai-cells)
- Add dt bindings for new panels.
- Change bridge/tc358775 dt bindings.

Core Changes:
- Fix SIZE_HINTS cursor property doc.
- Parse topology blocks for all DispID < 2.0.
- Implement support for tracking cleared free memory, use it in amdgpu.
- Drop seq_file.h from drm_print.h, and include debugfs.h explicitly
  where needed (drivers).

Driver Changes:
- Small fixes to rockchip, panthor, v3d, bridge chaining, xlx.
- Add Khadas TS050 V2, EDO RM69380 OLED, CSOT MNB601LS1-1 panels,
- Add SAM9X7 SoC's LVDS controller.
- More driver conversions to struct drm_edid.
- Support tc358765 in tc358775 bridge.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1ab99848-8fb8-41a6-8967-c4ce6f3634fd@linux.intel.com

Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-lvds.yaml

@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/microchip,sam9x75-lvds.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip SAM9X75 LVDS Controller
+
+maintainers:
+  - Dharma Balasubiramani <dharma.b@microchip.com>
+
+description:
+  The Low Voltage Differential Signaling Controller (LVDSC) manages data
+  format conversion from the LCD Controller internal DPI bus to OpenLDI
+  LVDS output signals. LVDSC functions include bit mapping, balanced mode
+  management, and serializer.
+
+properties:
+  compatible:
+    const: microchip,sam9x75-lvds
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Peripheral Bus Clock
+
+  clock-names:
+    items:
+      - const: pclk
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/clock/at91.h>
+    lvds-controller@f8060000 {
+      compatible = "microchip,sam9x75-lvds";
+      reg = <0xf8060000 0x100>;
+      interrupts = <56 IRQ_TYPE_LEVEL_HIGH 0>;
+      clocks = <&pmc PMC_TYPE_PERIPHERAL 56>;
+      clock-names = "pclk";
+    };

Documentation/devicetree/bindings/display/bridge/toshiba,tc358775.yaml

@@ -10,7 +10,7 @@ maintainers:
   - Vinay Simha BN <simhavcs@gmail.com>
 
 description: |
-  This binding supports DSI to LVDS bridge TC358775
+  This binding supports DSI to LVDS bridges TC358765 and TC358775
 
   MIPI DSI-RX Data 4-lane, CLK 1-lane with data rates up to 800 Mbps/lane.
   Video frame size:
@@ -21,7 +21,9 @@ description: |
 
 properties:
   compatible:
-    const: toshiba,tc358775
+    enum:
+      - toshiba,tc358765
+      - toshiba,tc358775
 
   reg:
     maxItems: 1
@@ -46,11 +48,27 @@ properties:
 
     properties:
       port@0:
-        $ref: /schemas/graph.yaml#/properties/port
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
         description: |
           DSI Input. The remote endpoint phandle should be a
           reference to a valid mipi_dsi_host device node.
 
+        properties:
+          endpoint:
+            $ref: /schemas/media/video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              data-lanes:
+                description: array of physical DSI data lane indexes.
+                minItems: 1
+                items:
+                  - const: 1
+                  - const: 2
+                  - const: 3
+                  - const: 4
+
       port@1:
         $ref: /schemas/graph.yaml#/properties/port
         description: |
@@ -70,10 +88,19 @@ required:
   - reg
   - vdd-supply
   - vddio-supply
-  - stby-gpios
   - reset-gpios
   - ports
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: toshiba,tc358765
+    then:
+      properties:
+        stby-gpios: false
+
 additionalProperties: false
 
 examples:
@@ -108,6 +135,7 @@ examples:
                     reg = <0>;
                     d2l_in_test: endpoint {
                         remote-endpoint = <&dsi0_out>;
+                        data-lanes = <1 2 3 4>;
                     };
                 };
 
@@ -132,7 +160,6 @@ examples:
                 reg = <1>;
                 dsi0_out: endpoint {
                     remote-endpoint = <&d2l_in_test>;
-                    data-lanes = <0 1 2 3>;
                 };
              };
          };
@@ -167,6 +194,7 @@ examples:
                     reg = <0>;
                     d2l_in_dual: endpoint {
                         remote-endpoint = <&dsi0_out_dual>;
+                        data-lanes = <1 2 3 4>;
                     };
                 };
 
@@ -198,7 +226,6 @@ examples:
                 reg = <1>;
                 dsi0_out_dual: endpoint {
                     remote-endpoint = <&d2l_in_dual>;
-                    data-lanes = <0 1 2 3>;
                 };
              };
          };

Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml

@@ -36,6 +36,8 @@ properties:
       - jdi,fhd-r63452
         # Khadas TS050 5" 1080x1920 LCD panel
       - khadas,ts050
+        # Khadas TS050 V2 5" 1080x1920 LCD panel
+      - khadas,ts050v2
         # Kingdisplay KD097D04 9.7" 1536x2048 TFT LCD panel
       - kingdisplay,kd097d04
         # LG ACX467AKM-7 4.95" 1080×1920 LCD Panel

Documentation/devicetree/bindings/display/panel/raydium,rm69380.yaml

@@ -0,0 +1,89 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/raydium,rm69380.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Raydium RM69380-based DSI display panels
+
+maintainers:
+  - David Wronek <david@mainlining.org>
+
+description:
+  The Raydium RM69380 is a generic DSI panel IC used to control
+  OLED panels.
+
+allOf:
+  - $ref: panel-common-dual.yaml#
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - lenovo,j716f-edo-rm69380
+      - const: raydium,rm69380
+    description: This indicates the panel manufacturer of the panel
+      that is in turn using the RM69380 panel driver. The compatible
+      string determines how the RM69380 panel driver shall be configured
+      to work with the indicated panel. The raydium,rm69380 compatible shall
+      always be provided as a fallback.
+
+  avdd-supply:
+    description: Analog voltage rail
+
+  vddio-supply:
+    description: I/O voltage rail
+
+  reset-gpios:
+    maxItems: 1
+    description: phandle of gpio for reset line - This should be active low
+
+  reg: true
+
+required:
+  - compatible
+  - reg
+  - avdd-supply
+  - vddio-supply
+  - reset-gpios
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        panel@0 {
+            compatible = "lenovo,j716f-edo-rm69380", "raydium,rm69380";
+            reg = <0>;
+
+            avdd-supply = <&panel_avdd_regulator>;
+            vddio-supply = <&vreg_l14a>;
+            reset-gpios = <&tlmm 75 GPIO_ACTIVE_LOW>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                port@0 {
+                    reg = <0>;
+                    panel_in_0: endpoint {
+                        remote-endpoint = <&mdss_dsi0_out>;
+                    };
+                };
+
+                port@1 {
+                    reg = <1>;
+                    panel_in_1: endpoint {
+                        remote-endpoint = <&mdss_dsi1_out>;
+                    };
+                };
+            };
+        };
+    };
+
+...

Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml

@@ -15,6 +15,7 @@ description: |
 
 allOf:
   - $ref: ../bridge/synopsys,dw-hdmi.yaml#
+  - $ref: /schemas/sound/dai-common.yaml#
 
 properties:
   compatible:
@@ -124,6 +125,9 @@ properties:
     description:
       phandle to the GRF to mux vopl/vopb.
 
+  "#sound-dai-cells":
+    const: 0
+
 required:
   - compatible
   - reg
@@ -153,6 +157,7 @@ examples:
         ddc-i2c-bus = <&i2c5>;
         power-domains = <&power RK3288_PD_VIO>;
         rockchip,grf = <&grf>;
+        #sound-dai-cells = <0>;
 
         ports {
             #address-cells = <1>;

Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml

@@ -37,6 +37,9 @@ properties:
   power-domains:
     maxItems: 1
 
+  "#sound-dai-cells":
+    const: 0
+
   ports:
     $ref: /schemas/graph.yaml#/properties/ports
 
@@ -66,6 +69,7 @@ required:
   - ports
 
 allOf:
+  - $ref: /schemas/sound/dai-common.yaml#
   - if:
       properties:
         compatible:
@@ -106,6 +110,7 @@ examples:
       clock-names = "pclk";
       pinctrl-names = "default";
       pinctrl-0 = <&hdmi_ctl>;
+      #sound-dai-cells = <0>;
 
       ports {
         #address-cells = <1>;

Documentation/devicetree/bindings/display/rockchip/rockchip,rk3066-hdmi.yaml

@@ -10,6 +10,9 @@ maintainers:
   - Sandy Huang <hjc@rock-chips.com>
   - Heiko Stuebner <heiko@sntech.de>
 
+allOf:
+  - $ref: /schemas/sound/dai-common.yaml#
+
 properties:
   compatible:
     const: rockchip,rk3066-hdmi
@@ -34,6 +37,9 @@ properties:
     description:
       This soc uses GRF regs to switch the HDMI TX input between vop0 and vop1.
 
+  "#sound-dai-cells":
+    const: 0
+
   ports:
     $ref: /schemas/graph.yaml#/properties/ports
 
@@ -83,6 +89,7 @@ examples:
       pinctrl-names = "default";
       power-domains = <&power RK3066_PD_VIO>;
       rockchip,grf = <&grf>;
+      #sound-dai-cells = <0>;
 
       ports {
         #address-cells = <1>;

MAINTAINERS

@@ -14582,6 +14582,14 @@ S:	Supported
 F:	Documentation/devicetree/bindings/pwm/atmel,at91sam-pwm.yaml
 F:	drivers/pwm/pwm-atmel.c
 
+MICROCHIP SAM9x7-COMPATIBLE LVDS CONTROLLER
+M:	Manikandan Muralidharan <manikandan.m@microchip.com>
+M:	Dharma Balasubiramani <dharma.b@microchip.com>
+L:	dri-devel@lists.freedesktop.org
+S:	Supported
+F:	Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-lvds.yaml
+F:	drivers/gpu/drm/bridge/microchip-lvds.c
+
 MICROCHIP SAMA5D2-COMPATIBLE ADC DRIVER
 M:	Eugen Hristev <eugen.hristev@microchip.com>
 L:	linux-iio@vger.kernel.org

drivers/accel/ivpu/ivpu_debugfs.c

@@ -3,6 +3,8 @@
  * Copyright (C) 2020-2023 Intel Corporation
  */
 
+#include <linux/debugfs.h>
+
 #include <drm/drm_debugfs.h>
 #include <drm/drm_file.h>
 #include <drm/drm_print.h>

drivers/gpu/drm/amd/amdgpu/amdgpu_object.c

@@ -39,6 +39,7 @@
 #include "amdgpu.h"
 #include "amdgpu_trace.h"
 #include "amdgpu_amdkfd.h"
+#include "amdgpu_vram_mgr.h"
 
 /**
  * DOC: amdgpu_object
@@ -601,8 +602,7 @@ int amdgpu_bo_create(struct amdgpu_device *adev,
 	if (!amdgpu_bo_support_uswc(bo->flags))
 		bo->flags &= ~AMDGPU_GEM_CREATE_CPU_GTT_USWC;
 
-	if (adev->ras_enabled)
+	bo->flags |= AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE;
-		bo->flags |= AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE;
 
 	bo->tbo.bdev = &adev->mman.bdev;
 	if (bp->domain & (AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA |
@@ -633,7 +633,7 @@ int amdgpu_bo_create(struct amdgpu_device *adev,
 	    bo->tbo.resource->mem_type == TTM_PL_VRAM) {
 		struct dma_fence *fence;
 
-		r = amdgpu_fill_buffer(bo, 0, bo->tbo.base.resv, &fence, true);
+		r = amdgpu_ttm_clear_buffer(bo, bo->tbo.base.resv, &fence);
 		if (unlikely(r))
 			goto fail_unreserve;
 
@@ -1366,8 +1366,9 @@ void amdgpu_bo_release_notify(struct ttm_buffer_object *bo)
 	if (WARN_ON_ONCE(!dma_resv_trylock(bo->base.resv)))
 		return;
 
-	r = amdgpu_fill_buffer(abo, AMDGPU_POISON, bo->base.resv, &fence, true);
+	r = amdgpu_fill_buffer(abo, 0, bo->base.resv, &fence, true);
 	if (!WARN_ON(r)) {
+		amdgpu_vram_mgr_set_cleared(bo->resource);
 		amdgpu_bo_fence(abo, fence, false);
 		dma_fence_put(fence);
 	}

drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h

@@ -164,4 +164,29 @@ static inline void amdgpu_res_next(struct amdgpu_res_cursor *cur, uint64_t size)
 	}
 }
 
+/**
+ * amdgpu_res_cleared - check if blocks are cleared
+ *
+ * @cur: the cursor to extract the block
+ *
+ * Check if the @cur block is cleared
+ */
+static inline bool amdgpu_res_cleared(struct amdgpu_res_cursor *cur)
+{
+	struct drm_buddy_block *block;
+
+	switch (cur->mem_type) {
+	case TTM_PL_VRAM:
+		block = cur->node;
+
+		if (!amdgpu_vram_mgr_is_cleared(block))
+			return false;
+		break;
+	default:
+		return false;
+	}
+
+	return true;
+}
+
 #endif

drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c

@@ -378,11 +378,12 @@ static int amdgpu_move_blit(struct ttm_buffer_object *bo,
 	    (abo->flags & AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE)) {
 		struct dma_fence *wipe_fence = NULL;
 
-		r = amdgpu_fill_buffer(abo, AMDGPU_POISON, NULL, &wipe_fence,
+		r = amdgpu_fill_buffer(abo, 0, NULL, &wipe_fence,
-					false);
+				       false);
 		if (r) {
 			goto error;
 		} else if (wipe_fence) {
+			amdgpu_vram_mgr_set_cleared(bo->resource);
 			dma_fence_put(fence);
 			fence = wipe_fence;
 		}
@@ -2226,6 +2227,71 @@ static int amdgpu_ttm_fill_mem(struct amdgpu_ring *ring, uint32_t src_data,
 	return 0;
 }
 
+/**
+ * amdgpu_ttm_clear_buffer - clear memory buffers
+ * @bo: amdgpu buffer object
+ * @resv: reservation object
+ * @fence: dma_fence associated with the operation
+ *
+ * Clear the memory buffer resource.
+ *
+ * Returns:
+ * 0 for success or a negative error code on failure.
+ */
+int amdgpu_ttm_clear_buffer(struct amdgpu_bo *bo,
+			    struct dma_resv *resv,
+			    struct dma_fence **fence)
+{
+	struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
+	struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
+	struct amdgpu_res_cursor cursor;
+	u64 addr;
+	int r;
+
+	if (!adev->mman.buffer_funcs_enabled)
+		return -EINVAL;
+
+	if (!fence)
+		return -EINVAL;
+
+	*fence = dma_fence_get_stub();
+
+	amdgpu_res_first(bo->tbo.resource, 0, amdgpu_bo_size(bo), &cursor);
+
+	mutex_lock(&adev->mman.gtt_window_lock);
+	while (cursor.remaining) {
+		struct dma_fence *next = NULL;
+		u64 size;
+
+		if (amdgpu_res_cleared(&cursor)) {
+			amdgpu_res_next(&cursor, cursor.size);
+			continue;
+		}
+
+		/* Never clear more than 256MiB at once to avoid timeouts */
+		size = min(cursor.size, 256ULL << 20);
+
+		r = amdgpu_ttm_map_buffer(&bo->tbo, bo->tbo.resource, &cursor,
+					  1, ring, false, &size, &addr);
+		if (r)
+			goto err;
+
+		r = amdgpu_ttm_fill_mem(ring, 0, addr, size, resv,
+					&next, true, true);
+		if (r)
+			goto err;
+
+		dma_fence_put(*fence);
+		*fence = next;
+
+		amdgpu_res_next(&cursor, size);
+	}
+err:
+	mutex_unlock(&adev->mman.gtt_window_lock);
+
+	return r;
+}
+
 int amdgpu_fill_buffer(struct amdgpu_bo *bo,
 			uint32_t src_data,
 			struct dma_resv *resv,

drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h

@@ -38,8 +38,6 @@
 #define AMDGPU_GTT_MAX_TRANSFER_SIZE	512
 #define AMDGPU_GTT_NUM_TRANSFER_WINDOWS	2
 
-#define AMDGPU_POISON	0xd0bed0be
-
 extern const struct attribute_group amdgpu_vram_mgr_attr_group;
 extern const struct attribute_group amdgpu_gtt_mgr_attr_group;
 
@@ -158,6 +156,9 @@ int amdgpu_ttm_copy_mem_to_mem(struct amdgpu_device *adev,
 			       uint64_t size, bool tmz,
 			       struct dma_resv *resv,
 			       struct dma_fence **f);
+int amdgpu_ttm_clear_buffer(struct amdgpu_bo *bo,
+			    struct dma_resv *resv,
+			    struct dma_fence **fence);
 int amdgpu_fill_buffer(struct amdgpu_bo *bo,
 			uint32_t src_data,
 			struct dma_resv *resv,

drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c

@@ -450,6 +450,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
 {
 	struct amdgpu_vram_mgr *mgr = to_vram_mgr(man);
 	struct amdgpu_device *adev = to_amdgpu_device(mgr);
+	struct amdgpu_bo *bo = ttm_to_amdgpu_bo(tbo);
 	u64 vis_usage = 0, max_bytes, min_block_size;
 	struct amdgpu_vram_mgr_resource *vres;
 	u64 size, remaining_size, lpfn, fpfn;
@@ -501,6 +502,9 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
 	if (place->flags & TTM_PL_FLAG_CONTIGUOUS)
 		vres->flags |= DRM_BUDDY_CONTIGUOUS_ALLOCATION;
 
+	if (bo->flags & AMDGPU_GEM_CREATE_VRAM_CLEARED)
+		vres->flags |= DRM_BUDDY_CLEAR_ALLOCATION;
+
 	if (fpfn || lpfn != mgr->mm.size)
 		/* Allocate blocks in desired range */
 		vres->flags |= DRM_BUDDY_RANGE_ALLOCATION;
@@ -571,7 +575,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
 	return 0;
 
 error_free_blocks:
-	drm_buddy_free_list(mm, &vres->blocks);
+	drm_buddy_free_list(mm, &vres->blocks, 0);
 	mutex_unlock(&mgr->lock);
 error_fini:
 	ttm_resource_fini(man, &vres->base);
@@ -604,7 +608,7 @@ static void amdgpu_vram_mgr_del(struct ttm_resource_manager *man,
 
 	amdgpu_vram_mgr_do_reserve(man);
 
-	drm_buddy_free_list(mm, &vres->blocks);
+	drm_buddy_free_list(mm, &vres->blocks, vres->flags);
 	mutex_unlock(&mgr->lock);
 
 	atomic64_sub(vis_usage, &mgr->vis_usage);
@@ -912,7 +916,7 @@ void amdgpu_vram_mgr_fini(struct amdgpu_device *adev)
 		kfree(rsv);
 
 	list_for_each_entry_safe(rsv, temp, &mgr->reserved_pages, blocks) {
-		drm_buddy_free_list(&mgr->mm, &rsv->allocated);
+		drm_buddy_free_list(&mgr->mm, &rsv->allocated, 0);
 		kfree(rsv);
 	}
 	if (!adev->gmc.is_app_apu)

drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h

@@ -53,10 +53,20 @@ static inline u64 amdgpu_vram_mgr_block_size(struct drm_buddy_block *block)
 	return (u64)PAGE_SIZE << drm_buddy_block_order(block);
 }
 
+static inline bool amdgpu_vram_mgr_is_cleared(struct drm_buddy_block *block)
+{
+	return drm_buddy_block_is_clear(block);
+}
+
 static inline struct amdgpu_vram_mgr_resource *
 to_amdgpu_vram_mgr_resource(struct ttm_resource *res)
 {
 	return container_of(res, struct amdgpu_vram_mgr_resource, base);
 }
 
+static inline void amdgpu_vram_mgr_set_cleared(struct ttm_resource *res)
+{
+	to_amdgpu_vram_mgr_resource(res)->flags |= DRM_BUDDY_CLEARED;
+}
+
 #endif

drivers/gpu/drm/armada/armada_debugfs.c

@@ -5,6 +5,7 @@
  */
 
 #include <linux/ctype.h>
+#include <linux/debugfs.h>
 #include <linux/module.h>
 #include <linux/seq_file.h>
 #include <linux/uaccess.h>

drivers/gpu/drm/bridge/Kconfig

@@ -189,6 +189,13 @@ config DRM_MEGACHIPS_STDPXXXX_GE_B850V3_FW
 	  to DP++. This is used with the i.MX6 imx-ldb
 	  driver. You are likely to say N here.
 
+config DRM_MICROCHIP_LVDS_SERIALIZER
+	tristate "Microchip LVDS serializer support"
+	depends on OF
+	depends on DRM_ATMEL_HLCDC
+	help
+	  Support for Microchip's LVDS serializer.
+
 config DRM_NWL_MIPI_DSI
 	tristate "Northwest Logic MIPI DSI Host controller"
 	depends on DRM

drivers/gpu/drm/bridge/Makefile

@@ -13,6 +13,7 @@ obj-$(CONFIG_DRM_LONTIUM_LT9611) += lontium-lt9611.o
 obj-$(CONFIG_DRM_LONTIUM_LT9611UXC) += lontium-lt9611uxc.o
 obj-$(CONFIG_DRM_LVDS_CODEC) += lvds-codec.o
 obj-$(CONFIG_DRM_MEGACHIPS_STDPXXXX_GE_B850V3_FW) += megachips-stdpxxxx-ge-b850v3-fw.o
+obj-$(CONFIG_DRM_MICROCHIP_LVDS_SERIALIZER) += microchip-lvds.o
 obj-$(CONFIG_DRM_NXP_PTN3460) += nxp-ptn3460.o
 obj-$(CONFIG_DRM_PARADE_PS8622) += parade-ps8622.o
 obj-$(CONFIG_DRM_PARADE_PS8640) += parade-ps8640.o

drivers/gpu/drm/bridge/adv7511/adv7511.h

@@ -356,6 +356,7 @@ struct adv7511 {
 	enum drm_connector_status status;
 	bool powered;
 
+	struct drm_bridge *next_bridge;
 	struct drm_display_mode curr_mode;
 
 	unsigned int f_tmds;

drivers/gpu/drm/bridge/adv7511/adv7511_drv.c

@@ -17,6 +17,7 @@
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_edid.h>
+#include <drm/drm_of.h>
 #include <drm/drm_print.h>
 #include <drm/drm_probe_helper.h>
 
@@ -951,6 +952,12 @@ static int adv7511_bridge_attach(struct drm_bridge *bridge,
 	struct adv7511 *adv = bridge_to_adv7511(bridge);
 	int ret = 0;
 
+	if (adv->next_bridge) {
+		ret = drm_bridge_attach(bridge->encoder, adv->next_bridge, bridge, flags);
+		if (ret)
+			return ret;
+	}
+
 	if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) {
 		ret = adv7511_connector_init(adv);
 		if (ret < 0)
@@ -1221,6 +1228,11 @@ static int adv7511_probe(struct i2c_client *i2c)
 
 	memset(&link_config, 0, sizeof(link_config));
 
+	ret = drm_of_find_panel_or_bridge(dev->of_node, 1, -1, NULL,
+					  &adv7511->next_bridge);
+	if (ret && ret != -ENODEV)
+		return ret;
+
 	if (adv7511->info->link_config)
 		ret = adv7511_parse_dt(dev->of_node, &link_config);
 	else

drivers/gpu/drm/bridge/chipone-icn6211.c

@@ -781,7 +781,6 @@ static struct mipi_dsi_driver chipone_dsi_driver = {
 	.remove = chipone_dsi_remove,
 	.driver = {
 		.name = "chipone-icn6211",
-		.owner = THIS_MODULE,
 		.of_match_table = chipone_of_match,
 	},
 };

drivers/gpu/drm/bridge/imx/Kconfig

@@ -8,8 +8,8 @@ config DRM_IMX8MP_DW_HDMI_BRIDGE
 	depends on COMMON_CLK
 	depends on DRM_DW_HDMI
 	depends on OF
-	select DRM_IMX8MP_HDMI_PVI
+	imply DRM_IMX8MP_HDMI_PVI
-	select PHY_FSL_SAMSUNG_HDMI_PHY
+	imply PHY_FSL_SAMSUNG_HDMI_PHY
 	help
 	  Choose this to enable support for the internal HDMI encoder found
 	  on the i.MX8MP SoC.

drivers/gpu/drm/bridge/ite-it6505.c

@@ -3,6 +3,7 @@
  * Copyright (c) 2020, The Linux Foundation. All rights reserved.
  */
 #include <linux/bits.h>
+#include <linux/debugfs.h>
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/err.h>

drivers/gpu/drm/bridge/microchip-lvds.c

@@ -0,0 +1,229 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2023 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Manikandan Muralidharan <manikandan.m@microchip.com>
+ * Author: Dharma Balasubiramani <dharma.b@microchip.com>
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/delay.h>
+#include <linux/jiffies.h>
+#include <linux/mfd/syscon.h>
+#include <linux/of_graph.h>
+#include <linux/pinctrl/devinfo.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_bridge.h>
+#include <drm/drm_of.h>
+#include <drm/drm_panel.h>
+#include <drm/drm_print.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_simple_kms_helper.h>
+
+#define LVDS_POLL_TIMEOUT_MS 1000
+
+/* LVDSC register offsets */
+#define LVDSC_CR	0x00
+#define LVDSC_CFGR	0x04
+#define LVDSC_SR	0x0C
+#define LVDSC_WPMR	0xE4
+
+/* Bitfields in LVDSC_CR (Control Register) */
+#define LVDSC_CR_SER_EN	BIT(0)
+
+/* Bitfields in LVDSC_CFGR (Configuration Register) */
+#define LVDSC_CFGR_PIXSIZE_24BITS	0
+#define LVDSC_CFGR_DEN_POL_HIGH		0
+#define LVDSC_CFGR_DC_UNBALANCED	0
+#define LVDSC_CFGR_MAPPING_JEIDA	BIT(6)
+
+/*Bitfields in LVDSC_SR */
+#define LVDSC_SR_CS	BIT(0)
+
+/* Bitfields in LVDSC_WPMR (Write Protection Mode Register) */
+#define LVDSC_WPMR_WPKEY_MASK	GENMASK(31, 8)
+#define LVDSC_WPMR_WPKEY_PSSWD	0x4C5644
+
+struct mchp_lvds {
+	struct device *dev;
+	void __iomem *regs;
+	struct clk *pclk;
+	struct drm_panel *panel;
+	struct drm_bridge bridge;
+	struct drm_bridge *panel_bridge;
+};
+
+static inline struct mchp_lvds *bridge_to_lvds(struct drm_bridge *bridge)
+{
+	return container_of(bridge, struct mchp_lvds, bridge);
+}
+
+static inline u32 lvds_readl(struct mchp_lvds *lvds, u32 offset)
+{
+	return readl_relaxed(lvds->regs + offset);
+}
+
+static inline void lvds_writel(struct mchp_lvds *lvds, u32 offset, u32 val)
+{
+	writel_relaxed(val, lvds->regs + offset);
+}
+
+static void lvds_serialiser_on(struct mchp_lvds *lvds)
+{
+	unsigned long timeout = jiffies + msecs_to_jiffies(LVDS_POLL_TIMEOUT_MS);
+
+	/* The LVDSC registers can only be written if WPEN is cleared */
+	lvds_writel(lvds, LVDSC_WPMR, (LVDSC_WPMR_WPKEY_PSSWD &
+				LVDSC_WPMR_WPKEY_MASK));
+
+	/* Wait for the status of configuration registers to be changed */
+	while (lvds_readl(lvds, LVDSC_SR) & LVDSC_SR_CS) {
+		if (time_after(jiffies, timeout)) {
+			dev_err(lvds->dev, "%s: timeout error\n", __func__);
+			return;
+		}
+		usleep_range(1000, 2000);
+	}
+
+	/* Configure the LVDSC */
+	lvds_writel(lvds, LVDSC_CFGR, (LVDSC_CFGR_MAPPING_JEIDA |
+				LVDSC_CFGR_DC_UNBALANCED |
+				LVDSC_CFGR_DEN_POL_HIGH |
+				LVDSC_CFGR_PIXSIZE_24BITS));
+
+	/* Enable the LVDS serializer */
+	lvds_writel(lvds, LVDSC_CR, LVDSC_CR_SER_EN);
+}
+
+static int mchp_lvds_attach(struct drm_bridge *bridge,
+			    enum drm_bridge_attach_flags flags)
+{
+	struct mchp_lvds *lvds = bridge_to_lvds(bridge);
+
+	return drm_bridge_attach(bridge->encoder, lvds->panel_bridge,
+				 bridge, flags);
+}
+
+static void mchp_lvds_enable(struct drm_bridge *bridge)
+{
+	struct mchp_lvds *lvds = bridge_to_lvds(bridge);
+	int ret;
+
+	ret = clk_prepare_enable(lvds->pclk);
+	if (ret < 0) {
+		dev_err(lvds->dev, "failed to enable lvds pclk %d\n", ret);
+		return;
+	}
+
+	ret = pm_runtime_get_sync(lvds->dev);
+	if (ret < 0) {
+		dev_err(lvds->dev, "failed to get pm runtime: %d\n", ret);
+		return;
+	}
+
+	lvds_serialiser_on(lvds);
+}
+
+static void mchp_lvds_disable(struct drm_bridge *bridge)
+{
+	struct mchp_lvds *lvds = bridge_to_lvds(bridge);
+
+	pm_runtime_put(lvds->dev);
+	clk_disable_unprepare(lvds->pclk);
+}
+
+static const struct drm_bridge_funcs mchp_lvds_bridge_funcs = {
+	.attach = mchp_lvds_attach,
+	.enable = mchp_lvds_enable,
+	.disable = mchp_lvds_disable,
+};
+
+static int mchp_lvds_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mchp_lvds *lvds;
+	struct device_node *port;
+	int ret;
+
+	if (!dev->of_node)
+		return -ENODEV;
+
+	lvds = devm_kzalloc(&pdev->dev, sizeof(*lvds), GFP_KERNEL);
+	if (!lvds)
+		return -ENOMEM;
+
+	lvds->dev = dev;
+
+	lvds->regs = devm_ioremap_resource(lvds->dev,
+			platform_get_resource(pdev, IORESOURCE_MEM, 0));
+	if (IS_ERR(lvds->regs))
+		return PTR_ERR(lvds->regs);
+
+	lvds->pclk = devm_clk_get(lvds->dev, "pclk");
+	if (IS_ERR(lvds->pclk))
+		return dev_err_probe(lvds->dev, PTR_ERR(lvds->pclk),
+				"could not get pclk_lvds\n");
+
+	port = of_graph_get_remote_node(dev->of_node, 1, 0);
+	if (!port) {
+		dev_err(dev,
+			"can't find port point, please init lvds panel port!\n");
+		return -ENODEV;
+	}
+
+	lvds->panel = of_drm_find_panel(port);
+	of_node_put(port);
+
+	if (IS_ERR(lvds->panel))
+		return -EPROBE_DEFER;
+
+	lvds->panel_bridge = devm_drm_of_get_bridge(dev, dev->of_node, 1, 0);
+
+	if (IS_ERR(lvds->panel_bridge))
+		return PTR_ERR(lvds->panel_bridge);
+
+	lvds->bridge.of_node = dev->of_node;
+	lvds->bridge.type = DRM_MODE_CONNECTOR_LVDS;
+	lvds->bridge.funcs = &mchp_lvds_bridge_funcs;
+
+	dev_set_drvdata(dev, lvds);
+	ret = devm_pm_runtime_enable(dev);
+	if (ret < 0) {
+		dev_err(lvds->dev, "failed to enable pm runtime: %d\n", ret);
+		return ret;
+	}
+
+	drm_bridge_add(&lvds->bridge);
+
+	return 0;
+}
+
+static const struct of_device_id mchp_lvds_dt_ids[] = {
+	{
+		.compatible = "microchip,sam9x75-lvds",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mchp_lvds_dt_ids);
+
+static struct platform_driver mchp_lvds_driver = {
+	.probe = mchp_lvds_probe,
+	.driver = {
+		   .name = "microchip-lvds",
+		   .of_match_table = mchp_lvds_dt_ids,
+	},
+};
+module_platform_driver(mchp_lvds_driver);
+
+MODULE_AUTHOR("Manikandan Muralidharan <manikandan.m@microchip.com>");
+MODULE_AUTHOR("Dharma Balasubiramani <dharma.b@microchip.com>");
+MODULE_DESCRIPTION("Low Voltage Differential Signaling Controller Driver");
+MODULE_LICENSE("GPL");

drivers/gpu/drm/bridge/panel.c

@@ -4,6 +4,8 @@
  * Copyright (C) 2017 Broadcom
  */
 
+#include <linux/debugfs.h>
+
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_bridge.h>
 #include <drm/drm_connector.h>

drivers/gpu/drm/bridge/tc358764.c

@@ -401,7 +401,6 @@ static struct mipi_dsi_driver tc358764_driver = {
 	.remove = tc358764_remove,
 	.driver = {
 		.name = "tc358764",
-		.owner = THIS_MODULE,
 		.of_match_table = tc358764_of_match,
 	},
 };

drivers/gpu/drm/bridge/tc358775.c

@@ -15,6 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/media-bus-format.h>
 #include <linux/module.h>
+#include <linux/of_device.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 
@@ -107,6 +108,7 @@
 #define RDPKTLN         0x0404  /* Command Read Packet Length */
 
 #define VPCTRL          0x0450  /* Video Path Control */
+#define EVTMODE		BIT(5)  /* Video event mode enable, tc35876x only */
 #define HTIM1           0x0454  /* Horizontal Timing Control 1 */
 #define HTIM2           0x0458  /* Horizontal Timing Control 2 */
 #define VTIM1           0x045C  /* Vertical Timing Control 1 */
@@ -254,6 +256,11 @@ enum tc358775_ports {
 	TC358775_LVDS_OUT1,
 };
 
+enum tc3587x5_type {
+	TC358765 = 0x65,
+	TC358775 = 0x75,
+};
+
 struct tc_data {
 	struct i2c_client	*i2c;
 	struct device		*dev;
@@ -271,6 +278,8 @@ struct tc_data {
 	struct gpio_desc	*stby_gpio;
 	u8			lvds_link; /* single-link or dual-link */
 	u8			bpc;
+
+	enum tc3587x5_type	type;
 };
 
 static inline struct tc_data *bridge_to_tc(struct drm_bridge *b)
@@ -424,10 +433,16 @@ static void tc_bridge_enable(struct drm_bridge *bridge)
 	d2l_write(tc->i2c, PPI_STARTPPI, PPI_START_FUNCTION);
 	d2l_write(tc->i2c, DSI_STARTDSI, DSI_RX_START);
 
+	/* Video event mode vs pulse mode bit, does not exist for tc358775 */
+	if (tc->type == TC358765)
+		val = EVTMODE;
+	else
+		val = 0;
+
 	if (tc->bpc == 8)
-		val = TC358775_VPCTRL_OPXLFMT(1);
+		val |= TC358775_VPCTRL_OPXLFMT(1);
 	else /* bpc = 6; */
-		val = TC358775_VPCTRL_MSF(1);
+		val |= TC358775_VPCTRL_MSF(1);
 
 	dsiclk = mode->crtc_clock * 3 * tc->bpc / tc->num_dsi_lanes / 1000;
 	clkdiv = dsiclk / (tc->lvds_link == DUAL_LINK ? DIVIDE_BY_6 : DIVIDE_BY_3);
@@ -454,10 +469,6 @@ static void tc_bridge_enable(struct drm_bridge *bridge)
 	dev_dbg(tc->dev, "bus_formats %04x bpc %d\n",
 		connector->display_info.bus_formats[0],
 		tc->bpc);
-	/*
-	 * Default hardware register settings of tc358775 configured
-	 * with MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA jeida-24 format
-	 */
 	if (connector->display_info.bus_formats[0] ==
 		MEDIA_BUS_FMT_RGB888_1X7X4_SPWG) {
 		/* VESA-24 */
@@ -468,14 +479,15 @@ static void tc_bridge_enable(struct drm_bridge *bridge)
 		d2l_write(tc->i2c, LV_MX1619, LV_MX(LVI_B6, LVI_B7, LVI_B1, LVI_B2));
 		d2l_write(tc->i2c, LV_MX2023, LV_MX(LVI_B3, LVI_B4, LVI_B5, LVI_L0));
 		d2l_write(tc->i2c, LV_MX2427, LV_MX(LVI_HS, LVI_VS, LVI_DE, LVI_R6));
-	} else { /*  MEDIA_BUS_FMT_RGB666_1X7X3_SPWG - JEIDA-18 */
+	} else {
-		d2l_write(tc->i2c, LV_MX0003, LV_MX(LVI_R0, LVI_R1, LVI_R2, LVI_R3));
+		/* JEIDA-18 and JEIDA-24 */
-		d2l_write(tc->i2c, LV_MX0407, LV_MX(LVI_R4, LVI_L0, LVI_R5, LVI_G0));
+		d2l_write(tc->i2c, LV_MX0003, LV_MX(LVI_R2, LVI_R3, LVI_R4, LVI_R5));
-		d2l_write(tc->i2c, LV_MX0811, LV_MX(LVI_G1, LVI_G2, LVI_L0, LVI_L0));
+		d2l_write(tc->i2c, LV_MX0407, LV_MX(LVI_R6, LVI_R1, LVI_R7, LVI_G2));
-		d2l_write(tc->i2c, LV_MX1215, LV_MX(LVI_G3, LVI_G4, LVI_G5, LVI_B0));
+		d2l_write(tc->i2c, LV_MX0811, LV_MX(LVI_G3, LVI_G4, LVI_G0, LVI_G1));
-		d2l_write(tc->i2c, LV_MX1619, LV_MX(LVI_L0, LVI_L0, LVI_B1, LVI_B2));
+		d2l_write(tc->i2c, LV_MX1215, LV_MX(LVI_G5, LVI_G6, LVI_G7, LVI_B2));
-		d2l_write(tc->i2c, LV_MX2023, LV_MX(LVI_B3, LVI_B4, LVI_B5, LVI_L0));
+		d2l_write(tc->i2c, LV_MX1619, LV_MX(LVI_B0, LVI_B1, LVI_B3, LVI_B4));
-		d2l_write(tc->i2c, LV_MX2427, LV_MX(LVI_HS, LVI_VS, LVI_DE, LVI_L0));
+		d2l_write(tc->i2c, LV_MX2023, LV_MX(LVI_B5, LVI_B6, LVI_B7, LVI_L0));
+		d2l_write(tc->i2c, LV_MX2427, LV_MX(LVI_HS, LVI_VS, LVI_DE, LVI_R0));
 	}
 
 	d2l_write(tc->i2c, VFUEN, VFUEN_EN);
@@ -528,27 +540,24 @@ tc_mode_valid(struct drm_bridge *bridge,
 static int tc358775_parse_dt(struct device_node *np, struct tc_data *tc)
 {
 	struct device_node *endpoint;
-	struct device_node *parent;
 	struct device_node *remote;
 	int dsi_lanes = -1;
 
-	/*
-	 * To get the data-lanes of dsi, we need to access the dsi0_out of port1
-	 *  of dsi0 endpoint from bridge port0 of d2l_in
-	 */
 	endpoint = of_graph_get_endpoint_by_regs(tc->dev->of_node,
 						 TC358775_DSI_IN, -1);
-	if (endpoint) {
+	dsi_lanes = drm_of_get_data_lanes_count(endpoint, 1, 4);
-		/* dsi0_out node */
+
-		parent = of_graph_get_remote_port_parent(endpoint);
+	/* Quirk old dtb: Use data lanes from the DSI host side instead of bridge */
-		of_node_put(endpoint);
+	if (dsi_lanes == -EINVAL || dsi_lanes == -ENODEV) {
-		if (parent) {
+		remote = of_graph_get_remote_endpoint(endpoint);
-			/* dsi0 port 1 */
+		dsi_lanes = drm_of_get_data_lanes_count(remote, 1, 4);
-			dsi_lanes = drm_of_get_data_lanes_count_ep(parent, 1, -1, 1, 4);
+		of_node_put(remote);
-			of_node_put(parent);
+		if (dsi_lanes >= 1)
-		}
+			dev_warn(tc->dev, "no dsi-lanes for the bridge, using host lanes\n");
 	}
 
+	of_node_put(endpoint);
+
 	if (dsi_lanes < 0)
 		return dsi_lanes;
 
@@ -623,7 +632,21 @@ static int tc_attach_host(struct tc_data *tc)
 
 	dsi->lanes = tc->num_dsi_lanes;
 	dsi->format = MIPI_DSI_FMT_RGB888;
-	dsi->mode_flags = MIPI_DSI_MODE_VIDEO;
+	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+			  MIPI_DSI_MODE_LPM;
+
+	/*
+	 * The hs_rate and lp_rate are data rate values. The HS mode is
+	 * differential, while the LP mode is single ended. As the HS mode
+	 * uses DDR, the DSI clock frequency is half the hs_rate. The 10 Mbs
+	 * data rate for LP mode is not specified in the bridge data sheet,
+	 * but seems to be part of the MIPI DSI spec.
+	 */
+	if (tc->type == TC358765)
+		dsi->hs_rate = 800000000;
+	else
+		dsi->hs_rate = 1000000000;
+	dsi->lp_rate = 10000000;
 
 	ret = devm_mipi_dsi_attach(dev, dsi);
 	if (ret < 0) {
@@ -646,6 +669,7 @@ static int tc_probe(struct i2c_client *client)
 
 	tc->dev = dev;
 	tc->i2c = client;
+	tc->type = (enum tc3587x5_type)(unsigned long)of_device_get_match_data(dev);
 
 	tc->panel_bridge = devm_drm_of_get_bridge(dev, dev->of_node,
 						  TC358775_LVDS_OUT0, 0);
@@ -670,12 +694,9 @@ static int tc_probe(struct i2c_client *client)
 		return ret;
 	}
 
-	tc->stby_gpio = devm_gpiod_get(dev, "stby", GPIOD_OUT_HIGH);
+	tc->stby_gpio = devm_gpiod_get_optional(dev, "stby", GPIOD_OUT_HIGH);
-	if (IS_ERR(tc->stby_gpio)) {
+	if (IS_ERR(tc->stby_gpio))
-		ret = PTR_ERR(tc->stby_gpio);
+		return PTR_ERR(tc->stby_gpio);
-		dev_err(dev, "cannot get stby-gpio %d\n", ret);
-		return ret;
-	}
 
 	tc->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
 	if (IS_ERR(tc->reset_gpio)) {
@@ -686,6 +707,7 @@ static int tc_probe(struct i2c_client *client)
 
 	tc->bridge.funcs = &tc_bridge_funcs;
 	tc->bridge.of_node = dev->of_node;
+	tc->bridge.pre_enable_prev_first = true;
 	drm_bridge_add(&tc->bridge);
 
 	i2c_set_clientdata(client, tc);
@@ -709,13 +731,15 @@ static void tc_remove(struct i2c_client *client)
 }
 
 static const struct i2c_device_id tc358775_i2c_ids[] = {
-	{ "tc358775", 0 },
+	{ "tc358765", TC358765, },
+	{ "tc358775", TC358775, },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, tc358775_i2c_ids);
 
 static const struct of_device_id tc358775_of_ids[] = {
-	{ .compatible = "toshiba,tc358775", },
+	{ .compatible = "toshiba,tc358765", .data = (void *)TC358765, },
+	{ .compatible = "toshiba,tc358775", .data = (void *)TC358775, },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, tc358775_of_ids);

drivers/gpu/drm/drm_buddy.c

@@ -57,6 +57,16 @@ static void list_insert_sorted(struct drm_buddy *mm,
 	__list_add(&block->link, node->link.prev, &node->link);
 }
 
+static void clear_reset(struct drm_buddy_block *block)
+{
+	block->header &= ~DRM_BUDDY_HEADER_CLEAR;
+}
+
+static void mark_cleared(struct drm_buddy_block *block)
+{
+	block->header |= DRM_BUDDY_HEADER_CLEAR;
+}
+
 static void mark_allocated(struct drm_buddy_block *block)
 {
 	block->header &= ~DRM_BUDDY_HEADER_STATE;
@@ -82,6 +92,133 @@ static void mark_split(struct drm_buddy_block *block)
 	list_del(&block->link);
 }
 
+static inline bool overlaps(u64 s1, u64 e1, u64 s2, u64 e2)
+{
+	return s1 <= e2 && e1 >= s2;
+}
+
+static inline bool contains(u64 s1, u64 e1, u64 s2, u64 e2)
+{
+	return s1 <= s2 && e1 >= e2;
+}
+
+static struct drm_buddy_block *
+__get_buddy(struct drm_buddy_block *block)
+{
+	struct drm_buddy_block *parent;
+
+	parent = block->parent;
+	if (!parent)
+		return NULL;
+
+	if (parent->left == block)
+		return parent->right;
+
+	return parent->left;
+}
+
+static unsigned int __drm_buddy_free(struct drm_buddy *mm,
+				     struct drm_buddy_block *block,
+				     bool force_merge)
+{
+	struct drm_buddy_block *parent;
+	unsigned int order;
+
+	while ((parent = block->parent)) {
+		struct drm_buddy_block *buddy;
+
+		buddy = __get_buddy(block);
+
+		if (!drm_buddy_block_is_free(buddy))
+			break;
+
+		if (!force_merge) {
+			/*
+			 * Check the block and its buddy clear state and exit
+			 * the loop if they both have the dissimilar state.
+			 */
+			if (drm_buddy_block_is_clear(block) !=
+			    drm_buddy_block_is_clear(buddy))
+				break;
+
+			if (drm_buddy_block_is_clear(block))
+				mark_cleared(parent);
+		}
+
+		list_del(&buddy->link);
+		if (force_merge && drm_buddy_block_is_clear(buddy))
+			mm->clear_avail -= drm_buddy_block_size(mm, buddy);
+
+		drm_block_free(mm, block);
+		drm_block_free(mm, buddy);
+
+		block = parent;
+	}
+
+	order = drm_buddy_block_order(block);
+	mark_free(mm, block);
+
+	return order;
+}
+
+static int __force_merge(struct drm_buddy *mm,
+			 u64 start,
+			 u64 end,
+			 unsigned int min_order)
+{
+	unsigned int order;
+	int i;
+
+	if (!min_order)
+		return -ENOMEM;
+
+	if (min_order > mm->max_order)
+		return -EINVAL;
+
+	for (i = min_order - 1; i >= 0; i--) {
+		struct drm_buddy_block *block, *prev;
+
+		list_for_each_entry_safe_reverse(block, prev, &mm->free_list[i], link) {
+			struct drm_buddy_block *buddy;
+			u64 block_start, block_end;
+
+			if (!block->parent)
+				continue;
+
+			block_start = drm_buddy_block_offset(block);
+			block_end = block_start + drm_buddy_block_size(mm, block) - 1;
+
+			if (!contains(start, end, block_start, block_end))
+				continue;
+
+			buddy = __get_buddy(block);
+			if (!drm_buddy_block_is_free(buddy))
+				continue;
+
+			WARN_ON(drm_buddy_block_is_clear(block) ==
+				drm_buddy_block_is_clear(buddy));
+
+			/*
+			 * If the prev block is same as buddy, don't access the
+			 * block in the next iteration as we would free the
+			 * buddy block as part of the free function.
+			 */
+			if (prev == buddy)
+				prev = list_prev_entry(prev, link);
+
+			list_del(&block->link);
+			if (drm_buddy_block_is_clear(block))
+				mm->clear_avail -= drm_buddy_block_size(mm, block);
+
+			order = __drm_buddy_free(mm, block, true);
+			if (order >= min_order)
+				return 0;
+		}
+	}
+
+	return -ENOMEM;
+}
+
 /**
  * drm_buddy_init - init memory manager
  *
@@ -186,11 +323,21 @@ EXPORT_SYMBOL(drm_buddy_init);
  */
 void drm_buddy_fini(struct drm_buddy *mm)
 {
+	u64 root_size, size;
+	unsigned int order;
 	int i;
 
+	size = mm->size;
+
 	for (i = 0; i < mm->n_roots; ++i) {
+		order = ilog2(size) - ilog2(mm->chunk_size);
+		__force_merge(mm, 0, size, order);
+
 		WARN_ON(!drm_buddy_block_is_free(mm->roots[i]));
 		drm_block_free(mm, mm->roots[i]);
+
+		root_size = mm->chunk_size << order;
+		size -= root_size;
 	}
 
 	WARN_ON(mm->avail != mm->size);
@@ -223,26 +370,17 @@ static int split_block(struct drm_buddy *mm,
 	mark_free(mm, block->left);
 	mark_free(mm, block->right);
 
+	if (drm_buddy_block_is_clear(block)) {
+		mark_cleared(block->left);
+		mark_cleared(block->right);
+		clear_reset(block);
+	}
+
 	mark_split(block);
 
 	return 0;
 }
 
-static struct drm_buddy_block *
-__get_buddy(struct drm_buddy_block *block)
-{
-	struct drm_buddy_block *parent;
-
-	parent = block->parent;
-	if (!parent)
-		return NULL;
-
-	if (parent->left == block)
-		return parent->right;
-
-	return parent->left;
-}
-
 /**
  * drm_get_buddy - get buddy address
  *
@@ -260,30 +398,6 @@ drm_get_buddy(struct drm_buddy_block *block)
 }
 EXPORT_SYMBOL(drm_get_buddy);
 
-static void __drm_buddy_free(struct drm_buddy *mm,
-			     struct drm_buddy_block *block)
-{
-	struct drm_buddy_block *parent;
-
-	while ((parent = block->parent)) {
-		struct drm_buddy_block *buddy;
-
-		buddy = __get_buddy(block);
-
-		if (!drm_buddy_block_is_free(buddy))
-			break;
-
-		list_del(&buddy->link);
-
-		drm_block_free(mm, block);
-		drm_block_free(mm, buddy);
-
-		block = parent;
-	}
-
-	mark_free(mm, block);
-}
-
 /**
  * drm_buddy_free_block - free a block
  *
@@ -295,42 +409,74 @@ void drm_buddy_free_block(struct drm_buddy *mm,
 {
 	BUG_ON(!drm_buddy_block_is_allocated(block));
 	mm->avail += drm_buddy_block_size(mm, block);
-	__drm_buddy_free(mm, block);
+	if (drm_buddy_block_is_clear(block))
+		mm->clear_avail += drm_buddy_block_size(mm, block);
+
+	__drm_buddy_free(mm, block, false);
 }
 EXPORT_SYMBOL(drm_buddy_free_block);
 
+static void __drm_buddy_free_list(struct drm_buddy *mm,
+				  struct list_head *objects,
+				  bool mark_clear,
+				  bool mark_dirty)
+{
+	struct drm_buddy_block *block, *on;
+
+	WARN_ON(mark_dirty && mark_clear);
+
+	list_for_each_entry_safe(block, on, objects, link) {
+		if (mark_clear)
+			mark_cleared(block);
+		else if (mark_dirty)
+			clear_reset(block);
+		drm_buddy_free_block(mm, block);
+		cond_resched();
+	}
+	INIT_LIST_HEAD(objects);
+}
+
+static void drm_buddy_free_list_internal(struct drm_buddy *mm,
+					 struct list_head *objects)
+{
+	/*
+	 * Don't touch the clear/dirty bit, since allocation is still internal
+	 * at this point. For example we might have just failed part of the
+	 * allocation.
+	 */
+	__drm_buddy_free_list(mm, objects, false, false);
+}
+
 /**
  * drm_buddy_free_list - free blocks
  *
  * @mm: DRM buddy manager
  * @objects: input list head to free blocks
+ * @flags: optional flags like DRM_BUDDY_CLEARED
  */
-void drm_buddy_free_list(struct drm_buddy *mm, struct list_head *objects)
+void drm_buddy_free_list(struct drm_buddy *mm,
+			 struct list_head *objects,
+			 unsigned int flags)
 {
-	struct drm_buddy_block *block, *on;
+	bool mark_clear = flags & DRM_BUDDY_CLEARED;
 
-	list_for_each_entry_safe(block, on, objects, link) {
+	__drm_buddy_free_list(mm, objects, mark_clear, !mark_clear);
-		drm_buddy_free_block(mm, block);
-		cond_resched();
-	}
-	INIT_LIST_HEAD(objects);
 }
 EXPORT_SYMBOL(drm_buddy_free_list);
 
-static inline bool overlaps(u64 s1, u64 e1, u64 s2, u64 e2)
+static bool block_incompatible(struct drm_buddy_block *block, unsigned int flags)
 {
-	return s1 <= e2 && e1 >= s2;
+	bool needs_clear = flags & DRM_BUDDY_CLEAR_ALLOCATION;
-}
 
-static inline bool contains(u64 s1, u64 e1, u64 s2, u64 e2)
+	return needs_clear != drm_buddy_block_is_clear(block);
-{
-	return s1 <= s2 && e1 >= e2;
 }
 
 static struct drm_buddy_block *
-alloc_range_bias(struct drm_buddy *mm,
+__alloc_range_bias(struct drm_buddy *mm,
-		 u64 start, u64 end,
+		   u64 start, u64 end,
-		 unsigned int order)
+		   unsigned int order,
+		   unsigned long flags,
+		   bool fallback)
 {
 	u64 req_size = mm->chunk_size << order;
 	struct drm_buddy_block *block;
@@ -379,6 +525,9 @@ alloc_range_bias(struct drm_buddy *mm,
 
 		if (contains(start, end, block_start, block_end) &&
 		    order == drm_buddy_block_order(block)) {
+			if (!fallback && block_incompatible(block, flags))
+				continue;
+
 			/*
 			 * Find the free block within the range.
 			 */
@@ -410,30 +559,57 @@ err_undo:
 	if (buddy &&
 	    (drm_buddy_block_is_free(block) &&
 	     drm_buddy_block_is_free(buddy)))
-		__drm_buddy_free(mm, block);
+		__drm_buddy_free(mm, block, false);
 	return ERR_PTR(err);
 }
 
 static struct drm_buddy_block *
-get_maxblock(struct drm_buddy *mm, unsigned int order)
+__drm_buddy_alloc_range_bias(struct drm_buddy *mm,
+			     u64 start, u64 end,
+			     unsigned int order,
+			     unsigned long flags)
 {
-	struct drm_buddy_block *max_block = NULL, *node;
+	struct drm_buddy_block *block;
+	bool fallback = false;
+
+	block = __alloc_range_bias(mm, start, end, order,
+				   flags, fallback);
+	if (IS_ERR(block) && mm->clear_avail)
+		return __alloc_range_bias(mm, start, end, order,
+					  flags, !fallback);
+
+	return block;
+}
+
+static struct drm_buddy_block *
+get_maxblock(struct drm_buddy *mm, unsigned int order,
+	     unsigned long flags)
+{
+	struct drm_buddy_block *max_block = NULL, *block = NULL;
 	unsigned int i;
 
 	for (i = order; i <= mm->max_order; ++i) {
-		if (!list_empty(&mm->free_list[i])) {
+		struct drm_buddy_block *tmp_block;
-			node = list_last_entry(&mm->free_list[i],
-					       struct drm_buddy_block,
-					       link);
-			if (!max_block) {
-				max_block = node;
-				continue;
-			}
 
-			if (drm_buddy_block_offset(node) >
+		list_for_each_entry_reverse(tmp_block, &mm->free_list[i], link) {
-			    drm_buddy_block_offset(max_block)) {
+			if (block_incompatible(tmp_block, flags))
-				max_block = node;
+				continue;
-			}
+
+			block = tmp_block;
+			break;
+		}
+
+		if (!block)
+			continue;
+
+		if (!max_block) {
+			max_block = block;
+			continue;
+		}
+
+		if (drm_buddy_block_offset(block) >
+		    drm_buddy_block_offset(max_block)) {
+			max_block = block;
 		}
 	}
 
@@ -450,11 +626,29 @@ alloc_from_freelist(struct drm_buddy *mm,
 	int err;
 
 	if (flags & DRM_BUDDY_TOPDOWN_ALLOCATION) {
-		block = get_maxblock(mm, order);
+		block = get_maxblock(mm, order, flags);
 		if (block)
 			/* Store the obtained block order */
 			tmp = drm_buddy_block_order(block);
 	} else {
+		for (tmp = order; tmp <= mm->max_order; ++tmp) {
+			struct drm_buddy_block *tmp_block;
+
+			list_for_each_entry_reverse(tmp_block, &mm->free_list[tmp], link) {
+				if (block_incompatible(tmp_block, flags))
+					continue;
+
+				block = tmp_block;
+				break;
+			}
+
+			if (block)
+				break;
+		}
+	}
+
+	if (!block) {
+		/* Fallback method */
 		for (tmp = order; tmp <= mm->max_order; ++tmp) {
 			if (!list_empty(&mm->free_list[tmp])) {
 				block = list_last_entry(&mm->free_list[tmp],
@@ -464,10 +658,10 @@ alloc_from_freelist(struct drm_buddy *mm,
 					break;
 			}
 		}
-	}
 
-	if (!block)
+		if (!block)
-		return ERR_PTR(-ENOSPC);
+			return ERR_PTR(-ENOSPC);
+	}
 
 	BUG_ON(!drm_buddy_block_is_free(block));
 
@@ -483,7 +677,7 @@ alloc_from_freelist(struct drm_buddy *mm,
 
 err_undo:
 	if (tmp != order)
-		__drm_buddy_free(mm, block);
+		__drm_buddy_free(mm, block, false);
 	return ERR_PTR(err);
 }
 
@@ -526,16 +720,18 @@ static int __alloc_range(struct drm_buddy *mm,
 		}
 
 		if (contains(start, end, block_start, block_end)) {
-			if (!drm_buddy_block_is_free(block)) {
+			if (drm_buddy_block_is_free(block)) {
+				mark_allocated(block);
+				total_allocated += drm_buddy_block_size(mm, block);
+				mm->avail -= drm_buddy_block_size(mm, block);
+				if (drm_buddy_block_is_clear(block))
+					mm->clear_avail -= drm_buddy_block_size(mm, block);
+				list_add_tail(&block->link, &allocated);
+				continue;
+			} else if (!mm->clear_avail) {
 				err = -ENOSPC;
 				goto err_free;
 			}
-
-			mark_allocated(block);
-			total_allocated += drm_buddy_block_size(mm, block);
-			mm->avail -= drm_buddy_block_size(mm, block);
-			list_add_tail(&block->link, &allocated);
-			continue;
 		}
 
 		if (!drm_buddy_block_is_split(block)) {
@@ -567,14 +763,14 @@ err_undo:
 	if (buddy &&
 	    (drm_buddy_block_is_free(block) &&
 	     drm_buddy_block_is_free(buddy)))
-		__drm_buddy_free(mm, block);
+		__drm_buddy_free(mm, block, false);
 
 err_free:
 	if (err == -ENOSPC && total_allocated_on_err) {
 		list_splice_tail(&allocated, blocks);
 		*total_allocated_on_err = total_allocated;
 	} else {
-		drm_buddy_free_list(mm, &allocated);
+		drm_buddy_free_list_internal(mm, &allocated);
 	}
 
 	return err;
@@ -640,11 +836,11 @@ static int __alloc_contig_try_harder(struct drm_buddy *mm,
 			list_splice(&blocks_lhs, blocks);
 			return 0;
 		} else if (err != -ENOSPC) {
-			drm_buddy_free_list(mm, blocks);
+			drm_buddy_free_list_internal(mm, blocks);
 			return err;
 		}
 		/* Free blocks for the next iteration */
-		drm_buddy_free_list(mm, blocks);
+		drm_buddy_free_list_internal(mm, blocks);
 	}
 
 	return -ENOSPC;
@@ -700,6 +896,8 @@ int drm_buddy_block_trim(struct drm_buddy *mm,
 	list_del(&block->link);
 	mark_free(mm, block);
 	mm->avail += drm_buddy_block_size(mm, block);
+	if (drm_buddy_block_is_clear(block))
+		mm->clear_avail += drm_buddy_block_size(mm, block);
 
 	/* Prevent recursively freeing this node */
 	parent = block->parent;
@@ -711,6 +909,8 @@ int drm_buddy_block_trim(struct drm_buddy *mm,
 	if (err) {
 		mark_allocated(block);
 		mm->avail -= drm_buddy_block_size(mm, block);
+		if (drm_buddy_block_is_clear(block))
+			mm->clear_avail -= drm_buddy_block_size(mm, block);
 		list_add(&block->link, blocks);
 	}
 
@@ -719,13 +919,28 @@ int drm_buddy_block_trim(struct drm_buddy *mm,
 }
 EXPORT_SYMBOL(drm_buddy_block_trim);
 
+static struct drm_buddy_block *
+__drm_buddy_alloc_blocks(struct drm_buddy *mm,
+			 u64 start, u64 end,
+			 unsigned int order,
+			 unsigned long flags)
+{
+	if (flags & DRM_BUDDY_RANGE_ALLOCATION)
+		/* Allocate traversing within the range */
+		return  __drm_buddy_alloc_range_bias(mm, start, end,
+						     order, flags);
+	else
+		/* Allocate from freelist */
+		return alloc_from_freelist(mm, order, flags);
+}
+
 /**
  * drm_buddy_alloc_blocks - allocate power-of-two blocks
  *
  * @mm: DRM buddy manager to allocate from
  * @start: start of the allowed range for this block
  * @end: end of the allowed range for this block
- * @size: size of the allocation
+ * @size: size of the allocation in bytes
  * @min_block_size: alignment of the allocation
  * @blocks: output list head to add allocated blocks
  * @flags: DRM_BUDDY_*_ALLOCATION flags
@@ -800,23 +1015,33 @@ int drm_buddy_alloc_blocks(struct drm_buddy *mm,
 		BUG_ON(order < min_order);
 
 		do {
-			if (flags & DRM_BUDDY_RANGE_ALLOCATION)
+			block = __drm_buddy_alloc_blocks(mm, start,
-				/* Allocate traversing within the range */
+							 end,
-				block = alloc_range_bias(mm, start, end, order);
+							 order,
-			else
+							 flags);
-				/* Allocate from freelist */
-				block = alloc_from_freelist(mm, order, flags);
-
 			if (!IS_ERR(block))
 				break;
 
 			if (order-- == min_order) {
+				/* Try allocation through force merge method */
+				if (mm->clear_avail &&
+				    !__force_merge(mm, start, end, min_order)) {
+					block = __drm_buddy_alloc_blocks(mm, start,
+									 end,
+									 min_order,
+									 flags);
+					if (!IS_ERR(block)) {
+						order = min_order;
+						break;
+					}
+				}
+
+				/*
+				 * Try contiguous block allocation through
+				 * try harder method.
+				 */
 				if (flags & DRM_BUDDY_CONTIGUOUS_ALLOCATION &&
 				    !(flags & DRM_BUDDY_RANGE_ALLOCATION))
-					/*
-					 * Try contiguous block allocation through
-					 * try harder method
-					 */
 					return __alloc_contig_try_harder(mm,
 									 original_size,
 									 original_min_size,
@@ -828,6 +1053,8 @@ int drm_buddy_alloc_blocks(struct drm_buddy *mm,
 
 		mark_allocated(block);
 		mm->avail -= drm_buddy_block_size(mm, block);
+		if (drm_buddy_block_is_clear(block))
+			mm->clear_avail -= drm_buddy_block_size(mm, block);
 		kmemleak_update_trace(block);
 		list_add_tail(&block->link, &allocated);
 
@@ -866,7 +1093,7 @@ int drm_buddy_alloc_blocks(struct drm_buddy *mm,
 	return 0;
 
 err_free:
-	drm_buddy_free_list(mm, &allocated);
+	drm_buddy_free_list_internal(mm, &allocated);
 	return err;
 }
 EXPORT_SYMBOL(drm_buddy_alloc_blocks);
@@ -899,8 +1126,8 @@ void drm_buddy_print(struct drm_buddy *mm, struct drm_printer *p)
 {
 	int order;
 
-	drm_printf(p, "chunk_size: %lluKiB, total: %lluMiB, free: %lluMiB\n",
+	drm_printf(p, "chunk_size: %lluKiB, total: %lluMiB, free: %lluMiB, clear_free: %lluMiB\n",
-		   mm->chunk_size >> 10, mm->size >> 20, mm->avail >> 20);
+		   mm->chunk_size >> 10, mm->size >> 20, mm->avail >> 20, mm->clear_avail >> 20);
 
 	for (order = mm->max_order; order >= 0; order--) {
 		struct drm_buddy_block *block;

drivers/gpu/drm/drm_displayid_internal.h

@@ -31,7 +31,6 @@ struct drm_edid;
 #define VESA_IEEE_OUI				0x3a0292
 
 /* DisplayID Structure versions */
-#define DISPLAY_ID_STRUCTURE_VER_12		0x12
 #define DISPLAY_ID_STRUCTURE_VER_20		0x20
 
 /* DisplayID Structure v1r2 Data Blocks */

drivers/gpu/drm/drm_edid.c

@@ -7462,7 +7462,7 @@ static void drm_parse_tiled_block(struct drm_connector *connector,
 static bool displayid_is_tiled_block(const struct displayid_iter *iter,
 				     const struct displayid_block *block)
 {
-	return (displayid_version(iter) == DISPLAY_ID_STRUCTURE_VER_12 &&
+	return (displayid_version(iter) < DISPLAY_ID_STRUCTURE_VER_20 &&
 		block->tag == DATA_BLOCK_TILED_DISPLAY) ||
 		(displayid_version(iter) == DISPLAY_ID_STRUCTURE_VER_20 &&
 		 block->tag == DATA_BLOCK_2_TILED_DISPLAY_TOPOLOGY);

drivers/gpu/drm/drm_plane.c

@@ -1750,7 +1750,7 @@ int drm_plane_create_scaling_filter_property(struct drm_plane *plane,
 EXPORT_SYMBOL(drm_plane_create_scaling_filter_property);
 
 /**
- * drm_plane_add_size_hint_property - create a size hint property
+ * drm_plane_add_size_hints_property - create a size hints property
  *
  * @plane: drm plane
  * @hints: size hints

drivers/gpu/drm/drm_print.c

@@ -23,13 +23,13 @@
  * Rob Clark <robdclark@gmail.com>
  */
 
-#include <linux/stdarg.h>
+#include <linux/debugfs.h>
-
+#include <linux/dynamic_debug.h>
 #include <linux/io.h>
 #include <linux/moduleparam.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
-#include <linux/dynamic_debug.h>
+#include <linux/stdarg.h>
 
 #include <drm/drm.h>
 #include <drm/drm_drv.h>

drivers/gpu/drm/gud/gud_connector.c

@@ -221,7 +221,7 @@ static int gud_connector_get_modes(struct drm_connector *connector)
 	struct gud_display_mode_req *reqmodes = NULL;
 	struct gud_connector_get_edid_ctx edid_ctx;
 	unsigned int i, num_modes = 0;
-	struct edid *edid = NULL;
+	const struct drm_edid *drm_edid = NULL;
 	int idx, ret;
 
 	if (!drm_dev_enter(connector->dev, &idx))
@@ -238,13 +238,13 @@ static int gud_connector_get_modes(struct drm_connector *connector)
 		gud_conn_err(connector, "Invalid EDID size", ret);
 	} else if (ret > 0) {
 		edid_ctx.len = ret;
-		edid = drm_do_get_edid(connector, gud_connector_get_edid_block, &edid_ctx);
+		drm_edid = drm_edid_read_custom(connector, gud_connector_get_edid_block, &edid_ctx);
 	}
 
 	kfree(edid_ctx.buf);
-	drm_connector_update_edid_property(connector, edid);
+	drm_edid_connector_update(connector, drm_edid);
 
-	if (edid && edid_ctx.edid_override)
+	if (drm_edid && edid_ctx.edid_override)
 		goto out;
 
 	reqmodes = kmalloc_array(GUD_CONNECTOR_MAX_NUM_MODES, sizeof(*reqmodes), GFP_KERNEL);
@@ -276,10 +276,10 @@ static int gud_connector_get_modes(struct drm_connector *connector)
 	}
 out:
 	if (!num_modes)
-		num_modes = drm_add_edid_modes(connector, edid);
+		num_modes = drm_edid_connector_add_modes(connector);
 
 	kfree(reqmodes);
-	kfree(edid);
+	drm_edid_free(drm_edid);
 	drm_dev_exit(idx);
 
 	return num_modes;

drivers/gpu/drm/i915/display/intel_dmc.c

@@ -22,6 +22,7 @@
  *
  */
 
+#include <linux/debugfs.h>
 #include <linux/firmware.h>
 
 #include "i915_drv.h"

drivers/gpu/drm/i915/i915_ttm_buddy_manager.c

@@ -126,7 +126,7 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man,
 	return 0;
 
 err_free_blocks:
-	drm_buddy_free_list(mm, &bman_res->blocks);
+	drm_buddy_free_list(mm, &bman_res->blocks, 0);
 	mutex_unlock(&bman->lock);
 err_free_res:
 	ttm_resource_fini(man, &bman_res->base);
@@ -141,7 +141,7 @@ static void i915_ttm_buddy_man_free(struct ttm_resource_manager *man,
 	struct i915_ttm_buddy_manager *bman = to_buddy_manager(man);
 
 	mutex_lock(&bman->lock);
-	drm_buddy_free_list(&bman->mm, &bman_res->blocks);
+	drm_buddy_free_list(&bman->mm, &bman_res->blocks, 0);
 	bman->visible_avail += bman_res->used_visible_size;
 	mutex_unlock(&bman->lock);
 
@@ -345,7 +345,7 @@ int i915_ttm_buddy_man_fini(struct ttm_device *bdev, unsigned int type)
 	ttm_set_driver_manager(bdev, type, NULL);
 
 	mutex_lock(&bman->lock);
-	drm_buddy_free_list(mm, &bman->reserved);
+	drm_buddy_free_list(mm, &bman->reserved, 0);
 	drm_buddy_fini(mm);
 	bman->visible_avail += bman->visible_reserved;
 	WARN_ON_ONCE(bman->visible_avail != bman->visible_size);

drivers/gpu/drm/imagination/pvr_fw_trace.c

@@ -12,6 +12,7 @@
 
 #include <linux/build_bug.h>
 #include <linux/dcache.h>
+#include <linux/debugfs.h>
 #include <linux/sysfs.h>
 #include <linux/types.h>
 

drivers/gpu/drm/meson/meson_dw_mipi_dsi.c

@@ -95,6 +95,7 @@ static int dw_mipi_dsi_phy_init(void *priv_data)
 		return ret;
 	}
 
+	clk_disable_unprepare(mipi_dsi->px_clk);
 	ret = clk_set_rate(mipi_dsi->px_clk, mipi_dsi->mode->clock * 1000);
 
 	if (ret) {
@@ -103,6 +104,12 @@ static int dw_mipi_dsi_phy_init(void *priv_data)
 		return ret;
 	}
 
+	ret = clk_prepare_enable(mipi_dsi->px_clk);
+	if (ret) {
+		dev_err(mipi_dsi->dev, "Failed to enable DSI Pixel clock (ret %d)\n", ret);
+		return ret;
+	}
+
 	switch (mipi_dsi->dsi_device->format) {
 	case MIPI_DSI_FMT_RGB888:
 		dpi_data_format = DPI_COLOR_24BIT;

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c

@@ -2,6 +2,8 @@
 /* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
  */
 
+#include <linux/debugfs.h>
+
 #include "dpu_hwio.h"
 #include "dpu_hw_catalog.h"
 #include "dpu_hw_lm.h"

drivers/gpu/drm/nouveau/dispnv50/crc.c

@@ -1,5 +1,7 @@
 // SPDX-License-Identifier: MIT
+#include <linux/debugfs.h>
 #include <linux/string.h>
+
 #include <drm/drm_crtc.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_vblank.h>

drivers/gpu/drm/panel/Kconfig

@@ -553,6 +553,18 @@ config DRM_PANEL_RAYDIUM_RM692E5
 	  Say Y here if you want to enable support for Raydium RM692E5-based
 	  display panels, such as the one found in the Fairphone 5 smartphone.
 
+config DRM_PANEL_RAYDIUM_RM69380
+	tristate "Raydium RM69380-based DSI panel"
+	depends on OF && GPIOLIB
+	depends on DRM_MIPI_DSI
+	depends on BACKLIGHT_CLASS_DEVICE
+	help
+	  Say Y here if you want to enable support for Raydium RM69380-based
+	  display panels.
+
+	  This panel controller can be found in the Lenovo Xiaoxin Pad Pro 2021
+	  in combination with an EDO OLED panel.
+
 config DRM_PANEL_RONBO_RB070D30
 	tristate "Ronbo Electronics RB070D30 panel"
 	depends on OF

drivers/gpu/drm/panel/Makefile

@@ -56,6 +56,7 @@ obj-$(CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN) += panel-raspberrypi-touchscreen
 obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM67191) += panel-raydium-rm67191.o
 obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM68200) += panel-raydium-rm68200.o
 obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM692E5) += panel-raydium-rm692e5.o
+obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM69380) += panel-raydium-rm69380.o
 obj-$(CONFIG_DRM_PANEL_RONBO_RB070D30) += panel-ronbo-rb070d30.o
 obj-$(CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20) += panel-samsung-atna33xc20.o
 obj-$(CONFIG_DRM_PANEL_SAMSUNG_DB7430) += panel-samsung-db7430.o

drivers/gpu/drm/panel/panel-edp.c

@@ -242,7 +242,7 @@ struct panel_edp {
 
 	const struct edp_panel_entry *detected_panel;
 
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 
 	struct drm_display_mode override_mode;
 
@@ -617,13 +617,16 @@ static int panel_edp_get_modes(struct drm_panel *panel,
 	if (p->ddc) {
 		pm_runtime_get_sync(panel->dev);
 
-		if (!p->edid)
+		if (!p->drm_edid)
-			p->edid = drm_get_edid(connector, p->ddc);
+			p->drm_edid = drm_edid_read_ddc(connector, p->ddc);
+
+		drm_edid_connector_update(connector, p->drm_edid);
+
 		/*
 		 * If both edid and hard-coded modes exists, skip edid modes to
 		 * avoid multiple preferred modes.
 		 */
-		if (p->edid && !has_hard_coded_modes) {
+		if (p->drm_edid && !has_hard_coded_modes) {
 			if (has_override_edid_mode) {
 				/*
 				 * override_edid_mode is specified. Use
@@ -632,7 +635,7 @@ static int panel_edp_get_modes(struct drm_panel *panel,
 				num += panel_edp_override_edid_mode(p, connector,
 						p->detected_panel->override_edid_mode);
 			} else {
-				num += drm_add_edid_modes(connector, p->edid);
+				num += drm_edid_connector_add_modes(connector);
 			}
 		}
 
@@ -981,8 +984,8 @@ static void panel_edp_remove(struct device *dev)
 	if (panel->ddc && (!panel->aux || panel->ddc != &panel->aux->ddc))
 		put_device(&panel->ddc->dev);
 
-	kfree(panel->edid);
+	drm_edid_free(panel->drm_edid);
-	panel->edid = NULL;
+	panel->drm_edid = NULL;
 }
 
 static void panel_edp_shutdown(struct device *dev)
@@ -2075,6 +2078,8 @@ static const struct edp_panel_entry edp_panels[] = {
 
 	EDP_PANEL_ENTRY('C', 'S', 'O', 0x1200, &delay_200_500_e50_p2e200, "MNC207QS1-1"),
 
+	EDP_PANEL_ENTRY('C', 'S', 'W', 0x1100, &delay_200_500_e80_d50, "MNB601LS1-1"),
+
 	EDP_PANEL_ENTRY('H', 'K', 'C', 0x2d51, &delay_200_500_e200, "Unknown"),
 	EDP_PANEL_ENTRY('H', 'K', 'C', 0x2d5b, &delay_200_500_e200, "Unknown"),
 	EDP_PANEL_ENTRY('H', 'K', 'C', 0x2d5c, &delay_200_500_e200, "MB116AN01-2"),

drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c

@@ -247,6 +247,7 @@ static int jdi_fhd_r63452_probe(struct mipi_dsi_device *dsi)
 
 	drm_panel_init(&ctx->panel, dev, &jdi_fhd_r63452_panel_funcs,
 		       DRM_MODE_CONNECTOR_DSI);
+	ctx->panel.prepare_prev_first = true;
 
 	ret = drm_panel_of_backlight(&ctx->panel);
 	if (ret)

drivers/gpu/drm/panel/panel-novatek-nt36672a.c

@@ -605,21 +605,16 @@ static int nt36672a_panel_add(struct nt36672a_panel *pinfo)
 	struct device *dev = &pinfo->link->dev;
 	int i, ret;
 
-	for (i = 0; i < ARRAY_SIZE(pinfo->supplies); i++)
+	for (i = 0; i < ARRAY_SIZE(pinfo->supplies); i++) {
 		pinfo->supplies[i].supply = nt36672a_regulator_names[i];
+		pinfo->supplies[i].init_load_uA = nt36672a_regulator_enable_loads[i];
+	}
 
 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(pinfo->supplies),
 				      pinfo->supplies);
 	if (ret < 0)
 		return dev_err_probe(dev, ret, "failed to get regulators\n");
 
-	for (i = 0; i < ARRAY_SIZE(pinfo->supplies); i++) {
-		ret = regulator_set_load(pinfo->supplies[i].consumer,
-					 nt36672a_regulator_enable_loads[i]);
-		if (ret)
-			return dev_err_probe(dev, ret, "failed to set regulator enable loads\n");
-	}
-
 	pinfo->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
 	if (IS_ERR(pinfo->reset_gpio))
 		return dev_err_probe(dev, PTR_ERR(pinfo->reset_gpio),

drivers/gpu/drm/panel/panel-novatek-nt36672e.c

@@ -25,12 +25,6 @@ static const unsigned long regulator_enable_loads[] = {
 	100000,
 };
 
-static const unsigned long regulator_disable_loads[] = {
-	80,
-	100,
-	100,
-};
-
 struct panel_desc {
 	const struct drm_display_mode *display_mode;
 	u32 width_mm;
@@ -349,17 +343,7 @@ static int nt36672e_1080x2408_60hz_init(struct mipi_dsi_device *dsi)
 static int nt36672e_power_on(struct nt36672e_panel *ctx)
 {
 	struct mipi_dsi_device *dsi = ctx->dsi;
-	int ret, i;
+	int ret;
-
-	for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) {
-		ret = regulator_set_load(ctx->supplies[i].consumer,
-				regulator_enable_loads[i]);
-		if (ret) {
-			dev_err(&dsi->dev, "regulator set load failed for supply %s: %d\n",
-				ctx->supplies[i].supply, ret);
-			return ret;
-		}
-	}
 
 	ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
 	if (ret < 0) {
@@ -385,20 +369,9 @@ static int nt36672e_power_off(struct nt36672e_panel *ctx)
 {
 	struct mipi_dsi_device *dsi = ctx->dsi;
 	int ret = 0;
-	int i;
 
 	gpiod_set_value(ctx->reset_gpio, 0);
 
-	for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) {
-		ret = regulator_set_load(ctx->supplies[i].consumer,
-				regulator_disable_loads[i]);
-		if (ret) {
-			dev_err(&dsi->dev, "regulator set load failed for supply %s: %d\n",
-				ctx->supplies[i].supply, ret);
-			return ret;
-		}
-	}
-
 	ret = regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
 	if (ret)
 		dev_err(&dsi->dev, "regulator bulk disable failed: %d\n", ret);
@@ -567,8 +540,10 @@ static int nt36672e_panel_probe(struct mipi_dsi_device *dsi)
 		return -ENODEV;
 	}
 
-	for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++)
+	for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) {
 		ctx->supplies[i].supply = regulator_names[i];
+		ctx->supplies[i].init_load_uA = regulator_enable_loads[i];
+	}
 
 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
 			ctx->supplies);

drivers/gpu/drm/panel/panel-raydium-rm69380.c

@@ -0,0 +1,344 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree.
+ * Copyright (c) 2024 David Wronek <david@mainlining.org>
+ */
+
+#include <linux/backlight.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_graph.h>
+#include <linux/regulator/consumer.h>
+
+#include <video/mipi_display.h>
+
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+#include <drm/drm_probe_helper.h>
+
+struct rm69380_panel {
+	struct drm_panel panel;
+	struct mipi_dsi_device *dsi[2];
+	struct regulator_bulk_data supplies[2];
+	struct gpio_desc *reset_gpio;
+};
+
+static inline
+struct rm69380_panel *to_rm69380_panel(struct drm_panel *panel)
+{
+	return container_of(panel, struct rm69380_panel, panel);
+}
+
+static void rm69380_reset(struct rm69380_panel *ctx)
+{
+	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+	usleep_range(15000, 16000);
+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+	usleep_range(10000, 11000);
+	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+	msleep(30);
+}
+
+static int rm69380_on(struct rm69380_panel *ctx)
+{
+	struct mipi_dsi_device *dsi = ctx->dsi[0];
+	struct device *dev = &dsi->dev;
+	int ret;
+
+	dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+	if (ctx->dsi[1])
+		ctx->dsi[1]->mode_flags |= MIPI_DSI_MODE_LPM;
+
+	mipi_dsi_dcs_write_seq(dsi, 0xfe, 0xd4);
+	mipi_dsi_dcs_write_seq(dsi, 0x00, 0x80);
+	mipi_dsi_dcs_write_seq(dsi, 0xfe, 0xd0);
+	mipi_dsi_dcs_write_seq(dsi, 0x48, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, 0xfe, 0x26);
+	mipi_dsi_dcs_write_seq(dsi, 0x75, 0x3f);
+	mipi_dsi_dcs_write_seq(dsi, 0x1d, 0x1a);
+	mipi_dsi_dcs_write_seq(dsi, 0xfe, 0x00);
+	mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x28);
+	mipi_dsi_dcs_write_seq(dsi, 0xc2, 0x08);
+
+	ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
+	if (ret < 0) {
+		dev_err(dev, "Failed to set tear on: %d\n", ret);
+		return ret;
+	}
+
+	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
+	if (ret < 0) {
+		dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
+		return ret;
+	}
+	msleep(20);
+
+	ret = mipi_dsi_dcs_set_display_on(dsi);
+	if (ret < 0) {
+		dev_err(dev, "Failed to set display on: %d\n", ret);
+		return ret;
+	}
+	msleep(36);
+
+	return 0;
+}
+
+static int rm69380_off(struct rm69380_panel *ctx)
+{
+	struct mipi_dsi_device *dsi = ctx->dsi[0];
+	struct device *dev = &dsi->dev;
+	int ret;
+
+	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+	if (ctx->dsi[1])
+		ctx->dsi[1]->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+	ret = mipi_dsi_dcs_set_display_off(dsi);
+	if (ret < 0) {
+		dev_err(dev, "Failed to set display off: %d\n", ret);
+		return ret;
+	}
+	msleep(35);
+
+	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+	if (ret < 0) {
+		dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
+		return ret;
+	}
+	msleep(20);
+
+	return 0;
+}
+
+static int rm69380_prepare(struct drm_panel *panel)
+{
+	struct rm69380_panel *ctx = to_rm69380_panel(panel);
+	struct device *dev = &ctx->dsi[0]->dev;
+	int ret;
+
+	ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+	if (ret < 0) {
+		dev_err(dev, "Failed to enable regulators: %d\n", ret);
+		return ret;
+	}
+
+	rm69380_reset(ctx);
+
+	ret = rm69380_on(ctx);
+	if (ret < 0) {
+		dev_err(dev, "Failed to initialize panel: %d\n", ret);
+		gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+		regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int rm69380_unprepare(struct drm_panel *panel)
+{
+	struct rm69380_panel *ctx = to_rm69380_panel(panel);
+	struct device *dev = &ctx->dsi[0]->dev;
+	int ret;
+
+	ret = rm69380_off(ctx);
+	if (ret < 0)
+		dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
+
+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+	regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+
+	return 0;
+}
+
+static const struct drm_display_mode rm69380_mode = {
+	.clock = (2560 + 32 + 12 + 38) * (1600 + 20 + 4 + 8) * 90 / 1000,
+	.hdisplay = 2560,
+	.hsync_start = 2560 + 32,
+	.hsync_end = 2560 + 32 + 12,
+	.htotal = 2560 + 32 + 12 + 38,
+	.vdisplay = 1600,
+	.vsync_start = 1600 + 20,
+	.vsync_end = 1600 + 20 + 4,
+	.vtotal = 1600 + 20 + 4 + 8,
+	.width_mm = 248,
+	.height_mm = 155,
+	.type = DRM_MODE_TYPE_DRIVER,
+};
+
+static int rm69380_get_modes(struct drm_panel *panel,
+					struct drm_connector *connector)
+{
+	return drm_connector_helper_get_modes_fixed(connector, &rm69380_mode);
+}
+
+static const struct drm_panel_funcs rm69380_panel_funcs = {
+	.prepare = rm69380_prepare,
+	.unprepare = rm69380_unprepare,
+	.get_modes = rm69380_get_modes,
+};
+
+static int rm69380_bl_update_status(struct backlight_device *bl)
+{
+	struct mipi_dsi_device *dsi = bl_get_data(bl);
+	u16 brightness = backlight_get_brightness(bl);
+	int ret;
+
+	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+	ret = mipi_dsi_dcs_set_display_brightness_large(dsi, brightness);
+	if (ret < 0)
+		return ret;
+
+	dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+	return 0;
+}
+
+static int rm69380_bl_get_brightness(struct backlight_device *bl)
+{
+	struct mipi_dsi_device *dsi = bl_get_data(bl);
+	u16 brightness;
+	int ret;
+
+	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+	ret = mipi_dsi_dcs_get_display_brightness_large(dsi, &brightness);
+	if (ret < 0)
+		return ret;
+
+	dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+	return brightness;
+}
+
+static const struct backlight_ops rm69380_bl_ops = {
+	.update_status = rm69380_bl_update_status,
+	.get_brightness = rm69380_bl_get_brightness,
+};
+
+static struct backlight_device *
+rm69380_create_backlight(struct mipi_dsi_device *dsi)
+{
+	struct device *dev = &dsi->dev;
+	const struct backlight_properties props = {
+		.type = BACKLIGHT_RAW,
+		.brightness = 511,
+		.max_brightness = 2047,
+	};
+
+	return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
+					      &rm69380_bl_ops, &props);
+}
+
+static int rm69380_probe(struct mipi_dsi_device *dsi)
+{
+	struct mipi_dsi_host *dsi_sec_host;
+	struct rm69380_panel *ctx;
+	struct device *dev = &dsi->dev;
+	struct device_node *dsi_sec;
+	int ret, i;
+
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->supplies[0].supply = "vddio";
+	ctx->supplies[1].supply = "avdd";
+	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
+				      ctx->supplies);
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "Failed to get regulators\n");
+
+	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+	if (IS_ERR(ctx->reset_gpio))
+		return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
+				     "Failed to get reset-gpios\n");
+
+	dsi_sec = of_graph_get_remote_node(dsi->dev.of_node, 1, -1);
+
+	if (dsi_sec) {
+		const struct mipi_dsi_device_info info = { "RM69380 DSI1", 0,
+							   dsi_sec };
+
+		dsi_sec_host = of_find_mipi_dsi_host_by_node(dsi_sec);
+		of_node_put(dsi_sec);
+		if (!dsi_sec_host)
+			return dev_err_probe(dev, -EPROBE_DEFER,
+					     "Cannot get secondary DSI host\n");
+
+		ctx->dsi[1] =
+			devm_mipi_dsi_device_register_full(dev, dsi_sec_host, &info);
+		if (IS_ERR(ctx->dsi[1]))
+			return dev_err_probe(dev, PTR_ERR(ctx->dsi[1]),
+					     "Cannot get secondary DSI node\n");
+
+		mipi_dsi_set_drvdata(ctx->dsi[1], ctx);
+	}
+
+	ctx->dsi[0] = dsi;
+	mipi_dsi_set_drvdata(dsi, ctx);
+
+	drm_panel_init(&ctx->panel, dev, &rm69380_panel_funcs,
+		       DRM_MODE_CONNECTOR_DSI);
+	ctx->panel.prepare_prev_first = true;
+
+	ctx->panel.backlight = rm69380_create_backlight(dsi);
+	if (IS_ERR(ctx->panel.backlight))
+		return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),
+				     "Failed to create backlight\n");
+
+	drm_panel_add(&ctx->panel);
+
+	for (i = 0; i < ARRAY_SIZE(ctx->dsi); i++) {
+		if (!ctx->dsi[i])
+			continue;
+
+		dev_dbg(&ctx->dsi[i]->dev, "Binding DSI %d\n", i);
+
+		ctx->dsi[i]->lanes = 4;
+		ctx->dsi[i]->format = MIPI_DSI_FMT_RGB888;
+		ctx->dsi[i]->mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
+					  MIPI_DSI_CLOCK_NON_CONTINUOUS;
+
+		ret = devm_mipi_dsi_attach(dev, ctx->dsi[i]);
+		if (ret < 0) {
+			drm_panel_remove(&ctx->panel);
+			return dev_err_probe(dev, ret,
+					     "Failed to attach to DSI%d\n", i);
+		}
+	}
+
+	return 0;
+}
+
+static void rm69380_remove(struct mipi_dsi_device *dsi)
+{
+	struct rm69380_panel *ctx = mipi_dsi_get_drvdata(dsi);
+
+	drm_panel_remove(&ctx->panel);
+}
+
+static const struct of_device_id rm69380_of_match[] = {
+	{ .compatible = "lenovo,j716f-edo-rm69380" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, rm69380_of_match);
+
+static struct mipi_dsi_driver rm69380_panel_driver = {
+	.probe = rm69380_probe,
+	.remove = rm69380_remove,
+	.driver = {
+		.name = "panel-raydium-rm69380",
+		.of_match_table = rm69380_of_match,
+	},
+};
+module_mipi_dsi_driver(rm69380_panel_driver);
+
+MODULE_AUTHOR("David Wronek <david@mainlining.org");
+MODULE_DESCRIPTION("DRM driver for Raydium RM69380-equipped DSI panels");
+MODULE_LICENSE("GPL");

drivers/gpu/drm/panel/panel-samsung-atna33xc20.c

@@ -36,7 +36,7 @@ struct atana33xc20_panel {
 	struct gpio_desc *el_on3_gpio;
 	struct drm_dp_aux *aux;
 
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 
 	ktime_t powered_off_time;
 	ktime_t powered_on_time;
@@ -253,9 +253,12 @@ static int atana33xc20_get_modes(struct drm_panel *panel,
 
 	pm_runtime_get_sync(panel->dev);
 
-	if (!p->edid)
+	if (!p->drm_edid)
-		p->edid = drm_get_edid(connector, &aux_ep->aux->ddc);
+		p->drm_edid = drm_edid_read_ddc(connector, &aux_ep->aux->ddc);
-	num = drm_add_edid_modes(connector, p->edid);
+
+	drm_edid_connector_update(connector, p->drm_edid);
+
+	num = drm_edid_connector_add_modes(connector);
 
 	pm_runtime_mark_last_busy(panel->dev);
 	pm_runtime_put_autosuspend(panel->dev);
@@ -351,7 +354,7 @@ static void atana33xc20_remove(struct dp_aux_ep_device *aux_ep)
 	drm_panel_disable(&panel->base);
 	drm_panel_unprepare(&panel->base);
 
-	kfree(panel->edid);
+	drm_edid_free(panel->drm_edid);
 }
 
 static void atana33xc20_shutdown(struct dp_aux_ep_device *aux_ep)

drivers/gpu/drm/panel/panel-simple.c

@@ -151,7 +151,7 @@ struct panel_simple {
 
 	struct gpio_desc *enable_gpio;
 
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 
 	struct drm_display_mode override_mode;
 
@@ -309,8 +309,8 @@ static int panel_simple_suspend(struct device *dev)
 	regulator_disable(p->supply);
 	p->unprepared_time = ktime_get_boottime();
 
-	kfree(p->edid);
+	drm_edid_free(p->drm_edid);
-	p->edid = NULL;
+	p->drm_edid = NULL;
 
 	return 0;
 }
@@ -399,11 +399,12 @@ static int panel_simple_get_modes(struct drm_panel *panel,
 	if (p->ddc) {
 		pm_runtime_get_sync(panel->dev);
 
-		if (!p->edid)
+		if (!p->drm_edid)
-			p->edid = drm_get_edid(connector, p->ddc);
+			p->drm_edid = drm_edid_read_ddc(connector, p->ddc);
 
-		if (p->edid)
+		drm_edid_connector_update(connector, p->drm_edid);
-			num += drm_add_edid_modes(connector, p->edid);
+
+		num += drm_edid_connector_add_modes(connector);
 
 		pm_runtime_mark_last_busy(panel->dev);
 		pm_runtime_put_autosuspend(panel->dev);

drivers/gpu/drm/panel/panel-visionox-rm69299.c

@@ -197,7 +197,9 @@ static int visionox_rm69299_probe(struct mipi_dsi_device *dsi)
 	ctx->dsi = dsi;
 
 	ctx->supplies[0].supply = "vdda";
+	ctx->supplies[0].init_load_uA = 32000;
 	ctx->supplies[1].supply = "vdd3p3";
+	ctx->supplies[1].init_load_uA = 13200;
 
 	ret = devm_regulator_bulk_get(ctx->panel.dev, ARRAY_SIZE(ctx->supplies),
 				      ctx->supplies);
@@ -227,22 +229,8 @@ static int visionox_rm69299_probe(struct mipi_dsi_device *dsi)
 		goto err_dsi_attach;
 	}
 
-	ret = regulator_set_load(ctx->supplies[0].consumer, 32000);
-	if (ret) {
-		dev_err(dev, "regulator set load failed for vdda supply ret = %d\n", ret);
-		goto err_set_load;
-	}
-
-	ret = regulator_set_load(ctx->supplies[1].consumer, 13200);
-	if (ret) {
-		dev_err(dev, "regulator set load failed for vdd3p3 supply ret = %d\n", ret);
-		goto err_set_load;
-	}
-
 	return 0;
 
-err_set_load:
-	mipi_dsi_detach(dsi);
 err_dsi_attach:
 	drm_panel_remove(&ctx->panel);
 	return ret;

drivers/gpu/drm/panthor/panthor_sched.c

@@ -2546,7 +2546,7 @@ void panthor_sched_suspend(struct panthor_device *ptdev)
 {
 	struct panthor_scheduler *sched = ptdev->scheduler;
 	struct panthor_csg_slots_upd_ctx upd_ctx;
-	u64 suspended_slots, faulty_slots;
+	u32 suspended_slots, faulty_slots;
 	struct panthor_group *group;
 	u32 i;
 

drivers/gpu/drm/radeon/r100.c

@@ -26,6 +26,7 @@
  *          Jerome Glisse
  */
 
+#include <linux/debugfs.h>
 #include <linux/firmware.h>
 #include <linux/module.h>
 #include <linux/pci.h>

drivers/gpu/drm/radeon/r300.c

@@ -26,6 +26,7 @@
  *          Jerome Glisse
  */
 
+#include <linux/debugfs.h>
 #include <linux/pci.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>

drivers/gpu/drm/radeon/r420.c

@@ -26,6 +26,7 @@
  *          Jerome Glisse
  */
 
+#include <linux/debugfs.h>
 #include <linux/pci.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>

drivers/gpu/drm/radeon/r600.c

@@ -26,11 +26,12 @@
  *          Jerome Glisse
  */
 
+#include <linux/debugfs.h>
 #include <linux/firmware.h>
 #include <linux/module.h>
 #include <linux/pci.h>
-#include <linux/slab.h>
 #include <linux/seq_file.h>
+#include <linux/slab.h>
 
 #include <drm/drm_device.h>
 #include <drm/drm_vblank.h>

drivers/gpu/drm/radeon/radeon_fence.c

@@ -30,6 +30,7 @@
  */
 
 #include <linux/atomic.h>
+#include <linux/debugfs.h>
 #include <linux/firmware.h>
 #include <linux/kref.h>
 #include <linux/sched/signal.h>

drivers/gpu/drm/radeon/radeon_gem.c

@@ -26,6 +26,7 @@
  *          Jerome Glisse
  */
 
+#include <linux/debugfs.h>
 #include <linux/iosys-map.h>
 #include <linux/pci.h>
 

drivers/gpu/drm/radeon/radeon_ib.c

@@ -27,6 +27,8 @@
  *          Christian König
  */
 
+#include <linux/debugfs.h>
+
 #include <drm/drm_file.h>
 
 #include "radeon.h"

drivers/gpu/drm/radeon/radeon_pm.c

@@ -21,6 +21,7 @@
  *          Alex Deucher <alexdeucher@gmail.com>
  */
 
+#include <linux/debugfs.h>
 #include <linux/hwmon-sysfs.h>
 #include <linux/hwmon.h>
 #include <linux/pci.h>

drivers/gpu/drm/radeon/radeon_ring.c

@@ -27,6 +27,8 @@
  *          Christian König
  */
 
+#include <linux/debugfs.h>
+
 #include <drm/drm_device.h>
 #include <drm/drm_file.h>
 

drivers/gpu/drm/radeon/radeon_ttm.c

@@ -30,6 +30,7 @@
  *    Dave Airlie
  */
 
+#include <linux/debugfs.h>
 #include <linux/dma-mapping.h>
 #include <linux/pagemap.h>
 #include <linux/pci.h>

drivers/gpu/drm/radeon/rs400.c

@@ -26,6 +26,7 @@
  *          Jerome Glisse
  */
 
+#include <linux/debugfs.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
 

drivers/gpu/drm/radeon/rv515.c

@@ -26,6 +26,7 @@
  *          Jerome Glisse
  */
 
+#include <linux/debugfs.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
 

drivers/gpu/drm/rockchip/cdn-dp-core.c

@@ -262,20 +262,21 @@ static const struct drm_connector_funcs cdn_dp_atomic_connector_funcs = {
 static int cdn_dp_connector_get_modes(struct drm_connector *connector)
 {
 	struct cdn_dp_device *dp = connector_to_dp(connector);
-	struct edid *edid;
 	int ret = 0;
 
 	mutex_lock(&dp->lock);
-	edid = dp->edid;
+
-	if (edid) {
+	if (dp->drm_edid) {
+		/* FIXME: get rid of drm_edid_raw() */
+		const struct edid *edid = drm_edid_raw(dp->drm_edid);
+
 		DRM_DEV_DEBUG_KMS(dp->dev, "got edid: width[%d] x height[%d]\n",
 				  edid->width_cm, edid->height_cm);
 
-		dp->sink_has_audio = drm_detect_monitor_audio(edid);
-
-		drm_connector_update_edid_property(connector, edid);
-		ret = drm_add_edid_modes(connector, edid);
 	}
+
+	ret = drm_edid_connector_add_modes(connector);
+
 	mutex_unlock(&dp->lock);
 
 	return ret;
@@ -380,9 +381,13 @@ static int cdn_dp_get_sink_capability(struct cdn_dp_device *dp)
 		return ret;
 	}
 
-	kfree(dp->edid);
+	drm_edid_free(dp->drm_edid);
-	dp->edid = drm_do_get_edid(&dp->connector,
+	dp->drm_edid = drm_edid_read_custom(&dp->connector,
-				   cdn_dp_get_edid_block, dp);
+					    cdn_dp_get_edid_block, dp);
+	drm_edid_connector_update(&dp->connector, dp->drm_edid);
+
+	dp->sink_has_audio = dp->connector.display_info.has_audio;
+
 	return 0;
 }
 
@@ -488,8 +493,8 @@ static int cdn_dp_disable(struct cdn_dp_device *dp)
 	dp->max_lanes = 0;
 	dp->max_rate = 0;
 	if (!dp->connected) {
-		kfree(dp->edid);
+		drm_edid_free(dp->drm_edid);
-		dp->edid = NULL;
+		dp->drm_edid = NULL;
 	}
 
 	return 0;
@@ -1131,8 +1136,8 @@ static void cdn_dp_unbind(struct device *dev, struct device *master, void *data)
 	pm_runtime_disable(dev);
 	if (dp->fw_loaded)
 		release_firmware(dp->fw);
-	kfree(dp->edid);
+	drm_edid_free(dp->drm_edid);
-	dp->edid = NULL;
+	dp->drm_edid = NULL;
 }
 
 static const struct component_ops cdn_dp_component_ops = {
@@ -1259,7 +1264,6 @@ struct platform_driver cdn_dp_driver = {
 	.shutdown = cdn_dp_shutdown,
 	.driver = {
 		   .name = "cdn-dp",
-		   .owner = THIS_MODULE,
 		   .of_match_table = cdn_dp_dt_ids,
 		   .pm = &cdn_dp_pm_ops,
 	},

drivers/gpu/drm/rockchip/cdn-dp-core.h

@@ -70,7 +70,7 @@ struct cdn_dp_device {
 	struct drm_display_mode mode;
 	struct platform_device *audio_pdev;
 	struct work_struct event_work;
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 
 	struct mutex lock;
 	bool connected;

drivers/gpu/drm/rockchip/inno_hdmi.c

@@ -606,18 +606,16 @@ inno_hdmi_connector_detect(struct drm_connector *connector, bool force)
 static int inno_hdmi_connector_get_modes(struct drm_connector *connector)
 {
 	struct inno_hdmi *hdmi = connector_to_inno_hdmi(connector);
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 	int ret = 0;
 
 	if (!hdmi->ddc)
 		return 0;
 
-	edid = drm_get_edid(connector, hdmi->ddc);
+	drm_edid = drm_edid_read_ddc(connector, hdmi->ddc);
-	if (edid) {
+	drm_edid_connector_update(connector, drm_edid);
-		drm_connector_update_edid_property(connector, edid);
+	ret = drm_edid_connector_add_modes(connector);
-		ret = drm_add_edid_modes(connector, edid);
+	drm_edid_free(drm_edid);
-		kfree(edid);
-	}
 
 	return ret;
 }

drivers/gpu/drm/rockchip/rk3066_hdmi.c

@@ -466,18 +466,16 @@ rk3066_hdmi_connector_detect(struct drm_connector *connector, bool force)
 static int rk3066_hdmi_connector_get_modes(struct drm_connector *connector)
 {
 	struct rk3066_hdmi *hdmi = connector_to_rk3066_hdmi(connector);
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 	int ret = 0;
 
 	if (!hdmi->ddc)
 		return 0;
 
-	edid = drm_get_edid(connector, hdmi->ddc);
+	drm_edid = drm_edid_read_ddc(connector, hdmi->ddc);
-	if (edid) {
+	drm_edid_connector_update(connector, drm_edid);
-		drm_connector_update_edid_property(connector, edid);
+	ret = drm_edid_connector_add_modes(connector);
-		ret = drm_add_edid_modes(connector, edid);
+	drm_edid_free(drm_edid);
-		kfree(edid);
-	}
 
 	return ret;
 }

drivers/gpu/drm/rockchip/rockchip_drm_vop2.c

@@ -706,6 +706,8 @@ static void vop2_setup_scale(struct vop2 *vop2, const struct vop2_win *win,
 	const struct drm_format_info *info;
 	u16 hor_scl_mode, ver_scl_mode;
 	u16 hscl_filter_mode, vscl_filter_mode;
+	uint16_t cbcr_src_w = src_w;
+	uint16_t cbcr_src_h = src_h;
 	u8 gt2 = 0;
 	u8 gt4 = 0;
 	u32 val;
@@ -763,27 +765,27 @@ static void vop2_setup_scale(struct vop2 *vop2, const struct vop2_win *win,
 	vop2_win_write(win, VOP2_WIN_YRGB_VSCL_FILTER_MODE, vscl_filter_mode);
 
 	if (info->is_yuv) {
-		src_w /= info->hsub;
+		cbcr_src_w /= info->hsub;
-		src_h /= info->vsub;
+		cbcr_src_h /= info->vsub;
 
 		gt4 = 0;
 		gt2 = 0;
 
-		if (src_h >= (4 * dst_h)) {
+		if (cbcr_src_h >= (4 * dst_h)) {
 			gt4 = 1;
-			src_h >>= 2;
+			cbcr_src_h >>= 2;
-		} else if (src_h >= (2 * dst_h)) {
+		} else if (cbcr_src_h >= (2 * dst_h)) {
 			gt2 = 1;
-			src_h >>= 1;
+			cbcr_src_h >>= 1;
 		}
 
-		hor_scl_mode = scl_get_scl_mode(src_w, dst_w);
+		hor_scl_mode = scl_get_scl_mode(cbcr_src_w, dst_w);
-		ver_scl_mode = scl_get_scl_mode(src_h, dst_h);
+		ver_scl_mode = scl_get_scl_mode(cbcr_src_h, dst_h);
 
-		val = vop2_scale_factor(src_w, dst_w);
+		val = vop2_scale_factor(cbcr_src_w, dst_w);
 		vop2_win_write(win, VOP2_WIN_SCALE_CBCR_X, val);
 
-		val = vop2_scale_factor(src_h, dst_h);
+		val = vop2_scale_factor(cbcr_src_h, dst_h);
 		vop2_win_write(win, VOP2_WIN_SCALE_CBCR_Y, val);
 
 		vop2_win_write(win, VOP2_WIN_VSD_CBCR_GT4, gt4);

drivers/gpu/drm/rockchip/rockchip_lvds.c

@@ -17,7 +17,6 @@
 #include <linux/regmap.h>
 #include <linux/reset.h>
 
-#include <drm/display/drm_dp_helper.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_bridge.h>
 #include <drm/drm_bridge_connector.h>

drivers/gpu/drm/sti/sti_drv.c

@@ -5,6 +5,7 @@
  */
 
 #include <linux/component.h>
+#include <linux/debugfs.h>
 #include <linux/dma-mapping.h>
 #include <linux/kernel.h>
 #include <linux/module.h>

drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c

@@ -214,20 +214,24 @@ sun4i_hdmi_connector_mode_valid(struct drm_connector *connector,
 static int sun4i_hdmi_get_modes(struct drm_connector *connector)
 {
 	struct sun4i_hdmi *hdmi = drm_connector_to_sun4i_hdmi(connector);
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 	int ret;
 
-	edid = drm_get_edid(connector, hdmi->ddc_i2c ?: hdmi->i2c);
+	drm_edid = drm_edid_read_ddc(connector, hdmi->ddc_i2c ?: hdmi->i2c);
-	if (!edid)
+
+	drm_edid_connector_update(connector, drm_edid);
+	cec_s_phys_addr(hdmi->cec_adap,
+			connector->display_info.source_physical_address, false);
+
+	if (!drm_edid)
 		return 0;
 
 	DRM_DEBUG_DRIVER("Monitor is %s monitor\n",
 			 connector->display_info.is_hdmi ? "an HDMI" : "a DVI");
 
-	drm_connector_update_edid_property(connector, edid);
+
-	cec_s_phys_addr_from_edid(hdmi->cec_adap, edid);
+	ret = drm_edid_connector_add_modes(connector);
-	ret = drm_add_edid_modes(connector, edid);
+	drm_edid_free(drm_edid);
-	kfree(edid);
 
 	return ret;
 }

drivers/gpu/drm/tests/drm_buddy_test.c

@@ -103,7 +103,7 @@ static void drm_test_buddy_alloc_range_bias(struct kunit *test)
 							      DRM_BUDDY_RANGE_ALLOCATION),
 				       "buddy_alloc i failed with bias(%x-%x), size=%u, ps=%u\n",
 				       bias_start, bias_end, bias_size, bias_size);
-		drm_buddy_free_list(&mm, &tmp);
+		drm_buddy_free_list(&mm, &tmp, 0);
 
 		/* single page with internal round_up */
 		KUNIT_ASSERT_FALSE_MSG(test,
@@ -113,7 +113,7 @@ static void drm_test_buddy_alloc_range_bias(struct kunit *test)
 							      DRM_BUDDY_RANGE_ALLOCATION),
 				       "buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n",
 				       bias_start, bias_end, ps, bias_size);
-		drm_buddy_free_list(&mm, &tmp);
+		drm_buddy_free_list(&mm, &tmp, 0);
 
 		/* random size within */
 		size = max(round_up(prandom_u32_state(&prng) % bias_rem, ps), ps);
@@ -153,14 +153,14 @@ static void drm_test_buddy_alloc_range_bias(struct kunit *test)
 			 * unallocated, and ideally not always on the bias
 			 * boundaries.
 			 */
-			drm_buddy_free_list(&mm, &tmp);
+			drm_buddy_free_list(&mm, &tmp, 0);
 		} else {
 			list_splice_tail(&tmp, &allocated);
 		}
 	}
 
 	kfree(order);
-	drm_buddy_free_list(&mm, &allocated);
+	drm_buddy_free_list(&mm, &allocated, 0);
 	drm_buddy_fini(&mm);
 
 	/*
@@ -220,7 +220,149 @@ static void drm_test_buddy_alloc_range_bias(struct kunit *test)
 			      "buddy_alloc passed with bias(%x-%x), size=%u\n",
 			      bias_start, bias_end, ps);
 
-	drm_buddy_free_list(&mm, &allocated);
+	drm_buddy_free_list(&mm, &allocated, 0);
+	drm_buddy_fini(&mm);
+}
+
+static void drm_test_buddy_alloc_clear(struct kunit *test)
+{
+	unsigned long n_pages, total, i = 0;
+	DRM_RND_STATE(prng, random_seed);
+	const unsigned long ps = SZ_4K;
+	struct drm_buddy_block *block;
+	const int max_order = 12;
+	LIST_HEAD(allocated);
+	struct drm_buddy mm;
+	unsigned int order;
+	u32 mm_size, size;
+	LIST_HEAD(dirty);
+	LIST_HEAD(clean);
+
+	mm_size = SZ_4K << max_order;
+	KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, mm_size, ps));
+
+	KUNIT_EXPECT_EQ(test, mm.max_order, max_order);
+
+	/*
+	 * Idea is to allocate and free some random portion of the address space,
+	 * returning those pages as non-dirty and randomly alternate between
+	 * requesting dirty and non-dirty pages (not going over the limit
+	 * we freed as non-dirty), putting that into two separate lists.
+	 * Loop over both lists at the end checking that the dirty list
+	 * is indeed all dirty pages and vice versa. Free it all again,
+	 * keeping the dirty/clear status.
+	 */
+	KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+							    5 * ps, ps, &allocated,
+							    DRM_BUDDY_TOPDOWN_ALLOCATION),
+				"buddy_alloc hit an error size=%lu\n", 5 * ps);
+	drm_buddy_free_list(&mm, &allocated, DRM_BUDDY_CLEARED);
+
+	n_pages = 10;
+	do {
+		unsigned long flags;
+		struct list_head *list;
+		int slot = i % 2;
+
+		if (slot == 0) {
+			list = &dirty;
+			flags = 0;
+		} else {
+			list = &clean;
+			flags = DRM_BUDDY_CLEAR_ALLOCATION;
+		}
+
+		KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+								    ps, ps, list,
+								    flags),
+					"buddy_alloc hit an error size=%lu\n", ps);
+	} while (++i < n_pages);
+
+	list_for_each_entry(block, &clean, link)
+		KUNIT_EXPECT_EQ(test, drm_buddy_block_is_clear(block), true);
+
+	list_for_each_entry(block, &dirty, link)
+		KUNIT_EXPECT_EQ(test, drm_buddy_block_is_clear(block), false);
+
+	drm_buddy_free_list(&mm, &clean, DRM_BUDDY_CLEARED);
+
+	/*
+	 * Trying to go over the clear limit for some allocation.
+	 * The allocation should never fail with reasonable page-size.
+	 */
+	KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+							    10 * ps, ps, &clean,
+							    DRM_BUDDY_CLEAR_ALLOCATION),
+				"buddy_alloc hit an error size=%lu\n", 10 * ps);
+
+	drm_buddy_free_list(&mm, &clean, DRM_BUDDY_CLEARED);
+	drm_buddy_free_list(&mm, &dirty, 0);
+	drm_buddy_fini(&mm);
+
+	KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, mm_size, ps));
+
+	/*
+	 * Create a new mm. Intentionally fragment the address space by creating
+	 * two alternating lists. Free both lists, one as dirty the other as clean.
+	 * Try to allocate double the previous size with matching min_page_size. The
+	 * allocation should never fail as it calls the force_merge. Also check that
+	 * the page is always dirty after force_merge. Free the page as dirty, then
+	 * repeat the whole thing, increment the order until we hit the max_order.
+	 */
+
+	i = 0;
+	n_pages = mm_size / ps;
+	do {
+		struct list_head *list;
+		int slot = i % 2;
+
+		if (slot == 0)
+			list = &dirty;
+		else
+			list = &clean;
+
+		KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+								    ps, ps, list, 0),
+					"buddy_alloc hit an error size=%lu\n", ps);
+	} while (++i < n_pages);
+
+	drm_buddy_free_list(&mm, &clean, DRM_BUDDY_CLEARED);
+	drm_buddy_free_list(&mm, &dirty, 0);
+
+	order = 1;
+	do {
+		size = SZ_4K << order;
+
+		KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+								    size, size, &allocated,
+								    DRM_BUDDY_CLEAR_ALLOCATION),
+					"buddy_alloc hit an error size=%u\n", size);
+		total = 0;
+		list_for_each_entry(block, &allocated, link) {
+			if (size != mm_size)
+				KUNIT_EXPECT_EQ(test, drm_buddy_block_is_clear(block), false);
+			total += drm_buddy_block_size(&mm, block);
+		}
+		KUNIT_EXPECT_EQ(test, total, size);
+
+		drm_buddy_free_list(&mm, &allocated, 0);
+	} while (++order <= max_order);
+
+	drm_buddy_fini(&mm);
+
+	/*
+	 * Create a new mm with a non power-of-two size. Allocate a random size, free as
+	 * cleared and then call fini. This will ensure the multi-root force merge during
+	 * fini.
+	 */
+	mm_size = 12 * SZ_4K;
+	size = max(round_up(prandom_u32_state(&prng) % mm_size, ps), ps);
+	KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, mm_size, ps));
+	KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+							    size, ps, &allocated,
+							    DRM_BUDDY_TOPDOWN_ALLOCATION),
+				"buddy_alloc hit an error size=%u\n", size);
+	drm_buddy_free_list(&mm, &allocated, DRM_BUDDY_CLEARED);
 	drm_buddy_fini(&mm);
 }
 
@@ -269,7 +411,7 @@ static void drm_test_buddy_alloc_contiguous(struct kunit *test)
 							   DRM_BUDDY_CONTIGUOUS_ALLOCATION),
 			       "buddy_alloc didn't error size=%lu\n", 3 * ps);
 
-	drm_buddy_free_list(&mm, &middle);
+	drm_buddy_free_list(&mm, &middle, 0);
 	KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
 							   3 * ps, ps, &allocated,
 							   DRM_BUDDY_CONTIGUOUS_ALLOCATION),
@@ -279,7 +421,7 @@ static void drm_test_buddy_alloc_contiguous(struct kunit *test)
 							   DRM_BUDDY_CONTIGUOUS_ALLOCATION),
 			       "buddy_alloc didn't error size=%lu\n", 2 * ps);
 
-	drm_buddy_free_list(&mm, &right);
+	drm_buddy_free_list(&mm, &right, 0);
 	KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
 							   3 * ps, ps, &allocated,
 							   DRM_BUDDY_CONTIGUOUS_ALLOCATION),
@@ -294,7 +436,7 @@ static void drm_test_buddy_alloc_contiguous(struct kunit *test)
 							    DRM_BUDDY_CONTIGUOUS_ALLOCATION),
 			       "buddy_alloc hit an error size=%lu\n", 2 * ps);
 
-	drm_buddy_free_list(&mm, &left);
+	drm_buddy_free_list(&mm, &left, 0);
 	KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
 							    3 * ps, ps, &allocated,
 							    DRM_BUDDY_CONTIGUOUS_ALLOCATION),
@@ -306,7 +448,7 @@ static void drm_test_buddy_alloc_contiguous(struct kunit *test)
 
 	KUNIT_ASSERT_EQ(test, total, ps * 2 + ps * 3);
 
-	drm_buddy_free_list(&mm, &allocated);
+	drm_buddy_free_list(&mm, &allocated, 0);
 	drm_buddy_fini(&mm);
 }
 
@@ -375,7 +517,7 @@ static void drm_test_buddy_alloc_pathological(struct kunit *test)
 							  top, max_order);
 	}
 
-	drm_buddy_free_list(&mm, &holes);
+	drm_buddy_free_list(&mm, &holes, 0);
 
 	/* Nothing larger than blocks of chunk_size now available */
 	for (order = 1; order <= max_order; order++) {
@@ -387,7 +529,7 @@ static void drm_test_buddy_alloc_pathological(struct kunit *test)
 	}
 
 	list_splice_tail(&holes, &blocks);
-	drm_buddy_free_list(&mm, &blocks);
+	drm_buddy_free_list(&mm, &blocks, 0);
 	drm_buddy_fini(&mm);
 }
 
@@ -482,7 +624,7 @@ static void drm_test_buddy_alloc_pessimistic(struct kunit *test)
 
 	list_del(&block->link);
 	drm_buddy_free_block(&mm, block);
-	drm_buddy_free_list(&mm, &blocks);
+	drm_buddy_free_list(&mm, &blocks, 0);
 	drm_buddy_fini(&mm);
 }
 
@@ -528,7 +670,7 @@ static void drm_test_buddy_alloc_optimistic(struct kunit *test)
 							   size, size, &tmp, flags),
 						  "buddy_alloc unexpectedly succeeded, it should be full!");
 
-	drm_buddy_free_list(&mm, &blocks);
+	drm_buddy_free_list(&mm, &blocks, 0);
 	drm_buddy_fini(&mm);
 }
 
@@ -563,7 +705,7 @@ static void drm_test_buddy_alloc_limit(struct kunit *test)
 						drm_buddy_block_size(&mm, block),
 						BIT_ULL(mm.max_order) * PAGE_SIZE);
 
-	drm_buddy_free_list(&mm, &allocated);
+	drm_buddy_free_list(&mm, &allocated, 0);
 	drm_buddy_fini(&mm);
 }
 
@@ -584,6 +726,7 @@ static struct kunit_case drm_buddy_tests[] = {
 	KUNIT_CASE(drm_test_buddy_alloc_pessimistic),
 	KUNIT_CASE(drm_test_buddy_alloc_pathological),
 	KUNIT_CASE(drm_test_buddy_alloc_contiguous),
+	KUNIT_CASE(drm_test_buddy_alloc_clear),
 	KUNIT_CASE(drm_test_buddy_alloc_range_bias),
 	{}
 };

drivers/gpu/drm/ttm/ttm_device.c

@@ -27,6 +27,7 @@
 
 #define pr_fmt(fmt) "[TTM DEVICE] " fmt
 
+#include <linux/debugfs.h>
 #include <linux/mm.h>
 
 #include <drm/ttm/ttm_bo.h>

drivers/gpu/drm/ttm/ttm_resource.c

@@ -22,8 +22,9 @@
  * Authors: Christian König
  */
 
-#include <linux/iosys-map.h>
+#include <linux/debugfs.h>
 #include <linux/io-mapping.h>
+#include <linux/iosys-map.h>
 #include <linux/scatterlist.h>
 
 #include <drm/ttm/ttm_bo.h>

drivers/gpu/drm/ttm/ttm_tt.c

@@ -32,10 +32,11 @@
 #define pr_fmt(fmt) "[TTM] " fmt
 
 #include <linux/cc_platform.h>
-#include <linux/sched.h>
+#include <linux/debugfs.h>
-#include <linux/shmem_fs.h>
 #include <linux/file.h>
 #include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/shmem_fs.h>
 #include <drm/drm_cache.h>
 #include <drm/drm_device.h>
 #include <drm/drm_util.h>

drivers/gpu/drm/v3d/v3d_drv.c

@@ -115,14 +115,13 @@ v3d_open(struct drm_device *dev, struct drm_file *file)
 	v3d_priv->v3d = v3d;
 
 	for (i = 0; i < V3D_MAX_QUEUES; i++) {
-		v3d_priv->enabled_ns[i] = 0;
-		v3d_priv->start_ns[i] = 0;
-		v3d_priv->jobs_sent[i] = 0;
-
 		sched = &v3d->queue[i].sched;
 		drm_sched_entity_init(&v3d_priv->sched_entity[i],
 				      DRM_SCHED_PRIORITY_NORMAL, &sched,
 				      1, NULL);
+
+		memset(&v3d_priv->stats[i], 0, sizeof(v3d_priv->stats[i]));
+		seqcount_init(&v3d_priv->stats[i].lock);
 	}
 
 	v3d_perfmon_open_file(v3d_priv);
@@ -144,6 +143,20 @@ v3d_postclose(struct drm_device *dev, struct drm_file *file)
 	kfree(v3d_priv);
 }
 
+void v3d_get_stats(const struct v3d_stats *stats, u64 timestamp,
+		   u64 *active_runtime, u64 *jobs_completed)
+{
+	unsigned int seq;
+
+	do {
+		seq = read_seqcount_begin(&stats->lock);
+		*active_runtime = stats->enabled_ns;
+		if (stats->start_ns)
+			*active_runtime += timestamp - stats->start_ns;
+		*jobs_completed = stats->jobs_completed;
+	} while (read_seqcount_retry(&stats->lock, seq));
+}
+
 static void v3d_show_fdinfo(struct drm_printer *p, struct drm_file *file)
 {
 	struct v3d_file_priv *file_priv = file->driver_priv;
@@ -151,20 +164,22 @@ static void v3d_show_fdinfo(struct drm_printer *p, struct drm_file *file)
 	enum v3d_queue queue;
 
 	for (queue = 0; queue < V3D_MAX_QUEUES; queue++) {
+		struct v3d_stats *stats = &file_priv->stats[queue];
+		u64 active_runtime, jobs_completed;
+
+		v3d_get_stats(stats, timestamp, &active_runtime, &jobs_completed);
+
 		/* Note that, in case of a GPU reset, the time spent during an
 		 * attempt of executing the job is not computed in the runtime.
 		 */
 		drm_printf(p, "drm-engine-%s: \t%llu ns\n",
-			   v3d_queue_to_string(queue),
+			   v3d_queue_to_string(queue), active_runtime);
-			   file_priv->start_ns[queue] ? file_priv->enabled_ns[queue]
-						      + timestamp - file_priv->start_ns[queue]
-						      : file_priv->enabled_ns[queue]);
 
 		/* Note that we only count jobs that completed. Therefore, jobs
 		 * that were resubmitted due to a GPU reset are not computed.
 		 */
 		drm_printf(p, "v3d-jobs-%s: \t%llu jobs\n",
-			   v3d_queue_to_string(queue), file_priv->jobs_sent[queue]);
+			   v3d_queue_to_string(queue), jobs_completed);
 	}
 }
 

drivers/gpu/drm/v3d/v3d_drv.h

@@ -36,15 +36,27 @@ static inline char *v3d_queue_to_string(enum v3d_queue queue)
 	return "UNKNOWN";
 }
 
+struct v3d_stats {
+	u64 start_ns;
+	u64 enabled_ns;
+	u64 jobs_completed;
+
+	/*
+	 * This seqcount is used to protect the access to the GPU stats
+	 * variables. It must be used as, while we are reading the stats,
+	 * IRQs can happen and the stats can be updated.
+	 */
+	seqcount_t lock;
+};
+
 struct v3d_queue_state {
 	struct drm_gpu_scheduler sched;
 
 	u64 fence_context;
 	u64 emit_seqno;
 
-	u64 start_ns;
+	/* Stores the GPU stats for this queue in the global context. */
-	u64 enabled_ns;
+	struct v3d_stats stats;
-	u64 jobs_sent;
 };
 
 /* Performance monitor object. The perform lifetime is controlled by userspace
@@ -188,11 +200,8 @@ struct v3d_file_priv {
 
 	struct drm_sched_entity sched_entity[V3D_MAX_QUEUES];
 
-	u64 start_ns[V3D_MAX_QUEUES];
+	/* Stores the GPU stats for a specific queue for this fd. */
-
+	struct v3d_stats stats[V3D_MAX_QUEUES];
-	u64 enabled_ns[V3D_MAX_QUEUES];
-
-	u64 jobs_sent[V3D_MAX_QUEUES];
 };
 
 struct v3d_bo {
@@ -508,6 +517,10 @@ struct drm_gem_object *v3d_prime_import_sg_table(struct drm_device *dev,
 /* v3d_debugfs.c */
 void v3d_debugfs_init(struct drm_minor *minor);
 
+/* v3d_drv.c */
+void v3d_get_stats(const struct v3d_stats *stats, u64 timestamp,
+		   u64 *active_runtime, u64 *jobs_completed);
+
 /* v3d_fence.c */
 extern const struct dma_fence_ops v3d_fence_ops;
 struct dma_fence *v3d_fence_create(struct v3d_dev *v3d, enum v3d_queue queue);
@@ -543,6 +556,7 @@ void v3d_mmu_insert_ptes(struct v3d_bo *bo);
 void v3d_mmu_remove_ptes(struct v3d_bo *bo);
 
 /* v3d_sched.c */
+void v3d_job_update_stats(struct v3d_job *job, enum v3d_queue queue);
 int v3d_sched_init(struct v3d_dev *v3d);
 void v3d_sched_fini(struct v3d_dev *v3d);
 

drivers/gpu/drm/v3d/v3d_gem.c

@@ -247,10 +247,11 @@ v3d_gem_init(struct drm_device *dev)
 	int ret, i;
 
 	for (i = 0; i < V3D_MAX_QUEUES; i++) {
-		v3d->queue[i].fence_context = dma_fence_context_alloc(1);
+		struct v3d_queue_state *queue = &v3d->queue[i];
-		v3d->queue[i].start_ns = 0;
+
-		v3d->queue[i].enabled_ns = 0;
+		queue->fence_context = dma_fence_context_alloc(1);
-		v3d->queue[i].jobs_sent = 0;
+		memset(&queue->stats, 0, sizeof(queue->stats));
+		seqcount_init(&queue->stats.lock);
 	}
 
 	spin_lock_init(&v3d->mm_lock);

drivers/gpu/drm/v3d/v3d_irq.c

@@ -102,18 +102,8 @@ v3d_irq(int irq, void *arg)
 	if (intsts & V3D_INT_FLDONE) {
 		struct v3d_fence *fence =
 			to_v3d_fence(v3d->bin_job->base.irq_fence);
-		struct v3d_file_priv *file = v3d->bin_job->base.file->driver_priv;
-		u64 runtime = local_clock() - file->start_ns[V3D_BIN];
-
-		file->jobs_sent[V3D_BIN]++;
-		v3d->queue[V3D_BIN].jobs_sent++;
-
-		file->start_ns[V3D_BIN] = 0;
-		v3d->queue[V3D_BIN].start_ns = 0;
-
-		file->enabled_ns[V3D_BIN] += runtime;
-		v3d->queue[V3D_BIN].enabled_ns += runtime;
 
+		v3d_job_update_stats(&v3d->bin_job->base, V3D_BIN);
 		trace_v3d_bcl_irq(&v3d->drm, fence->seqno);
 		dma_fence_signal(&fence->base);
 		status = IRQ_HANDLED;
@@ -122,18 +112,8 @@ v3d_irq(int irq, void *arg)
 	if (intsts & V3D_INT_FRDONE) {
 		struct v3d_fence *fence =
 			to_v3d_fence(v3d->render_job->base.irq_fence);
-		struct v3d_file_priv *file = v3d->render_job->base.file->driver_priv;
-		u64 runtime = local_clock() - file->start_ns[V3D_RENDER];
-
-		file->jobs_sent[V3D_RENDER]++;
-		v3d->queue[V3D_RENDER].jobs_sent++;
-
-		file->start_ns[V3D_RENDER] = 0;
-		v3d->queue[V3D_RENDER].start_ns = 0;
-
-		file->enabled_ns[V3D_RENDER] += runtime;
-		v3d->queue[V3D_RENDER].enabled_ns += runtime;
 
+		v3d_job_update_stats(&v3d->render_job->base, V3D_RENDER);
 		trace_v3d_rcl_irq(&v3d->drm, fence->seqno);
 		dma_fence_signal(&fence->base);
 		status = IRQ_HANDLED;
@@ -142,18 +122,8 @@ v3d_irq(int irq, void *arg)
 	if (intsts & V3D_INT_CSDDONE(v3d->ver)) {
 		struct v3d_fence *fence =
 			to_v3d_fence(v3d->csd_job->base.irq_fence);
-		struct v3d_file_priv *file = v3d->csd_job->base.file->driver_priv;
-		u64 runtime = local_clock() - file->start_ns[V3D_CSD];
-
-		file->jobs_sent[V3D_CSD]++;
-		v3d->queue[V3D_CSD].jobs_sent++;
-
-		file->start_ns[V3D_CSD] = 0;
-		v3d->queue[V3D_CSD].start_ns = 0;
-
-		file->enabled_ns[V3D_CSD] += runtime;
-		v3d->queue[V3D_CSD].enabled_ns += runtime;
 
+		v3d_job_update_stats(&v3d->csd_job->base, V3D_CSD);
 		trace_v3d_csd_irq(&v3d->drm, fence->seqno);
 		dma_fence_signal(&fence->base);
 		status = IRQ_HANDLED;
@@ -189,18 +159,8 @@ v3d_hub_irq(int irq, void *arg)
 	if (intsts & V3D_HUB_INT_TFUC) {
 		struct v3d_fence *fence =
 			to_v3d_fence(v3d->tfu_job->base.irq_fence);
-		struct v3d_file_priv *file = v3d->tfu_job->base.file->driver_priv;
-		u64 runtime = local_clock() - file->start_ns[V3D_TFU];
-
-		file->jobs_sent[V3D_TFU]++;
-		v3d->queue[V3D_TFU].jobs_sent++;
-
-		file->start_ns[V3D_TFU] = 0;
-		v3d->queue[V3D_TFU].start_ns = 0;
-
-		file->enabled_ns[V3D_TFU] += runtime;
-		v3d->queue[V3D_TFU].enabled_ns += runtime;
 
+		v3d_job_update_stats(&v3d->tfu_job->base, V3D_TFU);
 		trace_v3d_tfu_irq(&v3d->drm, fence->seqno);
 		dma_fence_signal(&fence->base);
 		status = IRQ_HANDLED;

drivers/gpu/drm/v3d/v3d_sched.c

@@ -105,11 +105,51 @@ v3d_switch_perfmon(struct v3d_dev *v3d, struct v3d_job *job)
 		v3d_perfmon_start(v3d, job->perfmon);
 }
 
+static void
+v3d_job_start_stats(struct v3d_job *job, enum v3d_queue queue)
+{
+	struct v3d_dev *v3d = job->v3d;
+	struct v3d_file_priv *file = job->file->driver_priv;
+	struct v3d_stats *global_stats = &v3d->queue[queue].stats;
+	struct v3d_stats *local_stats = &file->stats[queue];
+	u64 now = local_clock();
+
+	write_seqcount_begin(&local_stats->lock);
+	local_stats->start_ns = now;
+	write_seqcount_end(&local_stats->lock);
+
+	write_seqcount_begin(&global_stats->lock);
+	global_stats->start_ns = now;
+	write_seqcount_end(&global_stats->lock);
+}
+
+static void
+v3d_stats_update(struct v3d_stats *stats, u64 now)
+{
+	write_seqcount_begin(&stats->lock);
+	stats->enabled_ns += now - stats->start_ns;
+	stats->jobs_completed++;
+	stats->start_ns = 0;
+	write_seqcount_end(&stats->lock);
+}
+
+void
+v3d_job_update_stats(struct v3d_job *job, enum v3d_queue queue)
+{
+	struct v3d_dev *v3d = job->v3d;
+	struct v3d_file_priv *file = job->file->driver_priv;
+	struct v3d_stats *global_stats = &v3d->queue[queue].stats;
+	struct v3d_stats *local_stats = &file->stats[queue];
+	u64 now = local_clock();
+
+	v3d_stats_update(local_stats, now);
+	v3d_stats_update(global_stats, now);
+}
+
 static struct dma_fence *v3d_bin_job_run(struct drm_sched_job *sched_job)
 {
 	struct v3d_bin_job *job = to_bin_job(sched_job);
 	struct v3d_dev *v3d = job->base.v3d;
-	struct v3d_file_priv *file = job->base.file->driver_priv;
 	struct drm_device *dev = &v3d->drm;
 	struct dma_fence *fence;
 	unsigned long irqflags;
@@ -141,9 +181,7 @@ static struct dma_fence *v3d_bin_job_run(struct drm_sched_job *sched_job)
 	trace_v3d_submit_cl(dev, false, to_v3d_fence(fence)->seqno,
 			    job->start, job->end);
 
-	file->start_ns[V3D_BIN] = local_clock();
+	v3d_job_start_stats(&job->base, V3D_BIN);
-	v3d->queue[V3D_BIN].start_ns = file->start_ns[V3D_BIN];
-
 	v3d_switch_perfmon(v3d, &job->base);
 
 	/* Set the current and end address of the control list.
@@ -168,7 +206,6 @@ static struct dma_fence *v3d_render_job_run(struct drm_sched_job *sched_job)
 {
 	struct v3d_render_job *job = to_render_job(sched_job);
 	struct v3d_dev *v3d = job->base.v3d;
-	struct v3d_file_priv *file = job->base.file->driver_priv;
 	struct drm_device *dev = &v3d->drm;
 	struct dma_fence *fence;
 
@@ -196,9 +233,7 @@ static struct dma_fence *v3d_render_job_run(struct drm_sched_job *sched_job)
 	trace_v3d_submit_cl(dev, true, to_v3d_fence(fence)->seqno,
 			    job->start, job->end);
 
-	file->start_ns[V3D_RENDER] = local_clock();
+	v3d_job_start_stats(&job->base, V3D_RENDER);
-	v3d->queue[V3D_RENDER].start_ns = file->start_ns[V3D_RENDER];
-
 	v3d_switch_perfmon(v3d, &job->base);
 
 	/* XXX: Set the QCFG */
@@ -217,7 +252,6 @@ v3d_tfu_job_run(struct drm_sched_job *sched_job)
 {
 	struct v3d_tfu_job *job = to_tfu_job(sched_job);
 	struct v3d_dev *v3d = job->base.v3d;
-	struct v3d_file_priv *file = job->base.file->driver_priv;
 	struct drm_device *dev = &v3d->drm;
 	struct dma_fence *fence;
 
@@ -232,8 +266,7 @@ v3d_tfu_job_run(struct drm_sched_job *sched_job)
 
 	trace_v3d_submit_tfu(dev, to_v3d_fence(fence)->seqno);
 
-	file->start_ns[V3D_TFU] = local_clock();
+	v3d_job_start_stats(&job->base, V3D_TFU);
-	v3d->queue[V3D_TFU].start_ns = file->start_ns[V3D_TFU];
 
 	V3D_WRITE(V3D_TFU_IIA(v3d->ver), job->args.iia);
 	V3D_WRITE(V3D_TFU_IIS(v3d->ver), job->args.iis);
@@ -260,7 +293,6 @@ v3d_csd_job_run(struct drm_sched_job *sched_job)
 {
 	struct v3d_csd_job *job = to_csd_job(sched_job);
 	struct v3d_dev *v3d = job->base.v3d;
-	struct v3d_file_priv *file = job->base.file->driver_priv;
 	struct drm_device *dev = &v3d->drm;
 	struct dma_fence *fence;
 	int i, csd_cfg0_reg, csd_cfg_reg_count;
@@ -279,9 +311,7 @@ v3d_csd_job_run(struct drm_sched_job *sched_job)
 
 	trace_v3d_submit_csd(dev, to_v3d_fence(fence)->seqno);
 
-	file->start_ns[V3D_CSD] = local_clock();
+	v3d_job_start_stats(&job->base, V3D_CSD);
-	v3d->queue[V3D_CSD].start_ns = file->start_ns[V3D_CSD];
-
 	v3d_switch_perfmon(v3d, &job->base);
 
 	csd_cfg0_reg = V3D_CSD_QUEUED_CFG0(v3d->ver);
@@ -530,8 +560,6 @@ v3d_cpu_job_run(struct drm_sched_job *sched_job)
 {
 	struct v3d_cpu_job *job = to_cpu_job(sched_job);
 	struct v3d_dev *v3d = job->base.v3d;
-	struct v3d_file_priv *file = job->base.file->driver_priv;
-	u64 runtime;
 
 	v3d->cpu_job = job;
 
@@ -540,25 +568,13 @@ v3d_cpu_job_run(struct drm_sched_job *sched_job)
 		return NULL;
 	}
 
-	file->start_ns[V3D_CPU] = local_clock();
+	v3d_job_start_stats(&job->base, V3D_CPU);
-	v3d->queue[V3D_CPU].start_ns = file->start_ns[V3D_CPU];
-
 	trace_v3d_cpu_job_begin(&v3d->drm, job->job_type);
 
 	cpu_job_function[job->job_type](job);
 
 	trace_v3d_cpu_job_end(&v3d->drm, job->job_type);
-
+	v3d_job_update_stats(&job->base, V3D_CPU);
-	runtime = local_clock() - file->start_ns[V3D_CPU];
-
-	file->enabled_ns[V3D_CPU] += runtime;
-	v3d->queue[V3D_CPU].enabled_ns += runtime;
-
-	file->jobs_sent[V3D_CPU]++;
-	v3d->queue[V3D_CPU].jobs_sent++;
-
-	file->start_ns[V3D_CPU] = 0;
-	v3d->queue[V3D_CPU].start_ns = 0;
 
 	return NULL;
 }
@@ -568,24 +584,12 @@ v3d_cache_clean_job_run(struct drm_sched_job *sched_job)
 {
 	struct v3d_job *job = to_v3d_job(sched_job);
 	struct v3d_dev *v3d = job->v3d;
-	struct v3d_file_priv *file = job->file->driver_priv;
-	u64 runtime;
 
-	file->start_ns[V3D_CACHE_CLEAN] = local_clock();
+	v3d_job_start_stats(job, V3D_CACHE_CLEAN);
-	v3d->queue[V3D_CACHE_CLEAN].start_ns = file->start_ns[V3D_CACHE_CLEAN];
 
 	v3d_clean_caches(v3d);
 
-	runtime = local_clock() - file->start_ns[V3D_CACHE_CLEAN];
+	v3d_job_update_stats(job, V3D_CACHE_CLEAN);
-
-	file->enabled_ns[V3D_CACHE_CLEAN] += runtime;
-	v3d->queue[V3D_CACHE_CLEAN].enabled_ns += runtime;
-
-	file->jobs_sent[V3D_CACHE_CLEAN]++;
-	v3d->queue[V3D_CACHE_CLEAN].jobs_sent++;
-
-	file->start_ns[V3D_CACHE_CLEAN] = 0;
-	v3d->queue[V3D_CACHE_CLEAN].start_ns = 0;
 
 	return NULL;
 }

drivers/gpu/drm/v3d/v3d_sysfs.c

@@ -15,16 +15,15 @@ gpu_stats_show(struct device *dev, struct device_attribute *attr, char *buf)
 	struct v3d_dev *v3d = to_v3d_dev(drm);
 	enum v3d_queue queue;
 	u64 timestamp = local_clock();
-	u64 active_runtime;
 	ssize_t len = 0;
 
 	len += sysfs_emit(buf, "queue\ttimestamp\tjobs\truntime\n");
 
 	for (queue = 0; queue < V3D_MAX_QUEUES; queue++) {
-		if (v3d->queue[queue].start_ns)
+		struct v3d_stats *stats = &v3d->queue[queue].stats;
-			active_runtime = timestamp - v3d->queue[queue].start_ns;
+		u64 active_runtime, jobs_completed;
-		else
+
-			active_runtime = 0;
+		v3d_get_stats(stats, timestamp, &active_runtime, &jobs_completed);
 
 		/* Each line will display the queue name, timestamp, the number
 		 * of jobs sent to that queue and the runtime, as can be seem here:
@@ -38,9 +37,7 @@ gpu_stats_show(struct device *dev, struct device_attribute *attr, char *buf)
 		 */
 		len += sysfs_emit_at(buf, len, "%s\t%llu\t%llu\t%llu\n",
 				     v3d_queue_to_string(queue),
-				     timestamp,
+				     timestamp, jobs_completed, active_runtime);
-				     v3d->queue[queue].jobs_sent,
-				     v3d->queue[queue].enabled_ns + active_runtime);
 	}
 
 	return len;

drivers/gpu/drm/vc4/vc4_drv.h

@@ -5,6 +5,7 @@
 #ifndef _VC4_DRV_H_
 #define _VC4_DRV_H_
 
+#include <linux/debugfs.h>
 #include <linux/delay.h>
 #include <linux/of.h>
 #include <linux/refcount.h>

drivers/gpu/drm/vc4/vc4_hdmi.c

@@ -412,15 +412,14 @@ static void vc4_hdmi_handle_hotplug(struct vc4_hdmi *vc4_hdmi,
 				    enum drm_connector_status status)
 {
 	struct drm_connector *connector = &vc4_hdmi->connector;
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 	int ret;
 
 	/*
-	 * NOTE: This function should really be called with
+	 * NOTE: This function should really be called with vc4_hdmi->mutex
-	 * vc4_hdmi->mutex held, but doing so results in reentrancy
+	 * held, but doing so results in reentrancy issues since
-	 * issues since cec_s_phys_addr_from_edid might call
+	 * cec_s_phys_addr() might call .adap_enable, which leads to that
-	 * .adap_enable, which leads to that funtion being called with
+	 * funtion being called with our mutex held.
-	 * our mutex held.
 	 *
 	 * A similar situation occurs with vc4_hdmi_reset_link() that
 	 * will call into our KMS hooks if the scrambling was enabled.
@@ -435,12 +434,16 @@ static void vc4_hdmi_handle_hotplug(struct vc4_hdmi *vc4_hdmi,
 		return;
 	}
 
-	edid = drm_get_edid(connector, vc4_hdmi->ddc);
+	drm_edid = drm_edid_read_ddc(connector, vc4_hdmi->ddc);
-	if (!edid)
+
+	drm_edid_connector_update(connector, drm_edid);
+	cec_s_phys_addr(vc4_hdmi->cec_adap,
+			connector->display_info.source_physical_address, false);
+
+	if (!drm_edid)
 		return;
 
-	cec_s_phys_addr_from_edid(vc4_hdmi->cec_adap, edid);
+	drm_edid_free(drm_edid);
-	kfree(edid);
 
 	for (;;) {
 		ret = vc4_hdmi_reset_link(connector, ctx);
@@ -492,28 +495,29 @@ static int vc4_hdmi_connector_get_modes(struct drm_connector *connector)
 {
 	struct vc4_hdmi *vc4_hdmi = connector_to_vc4_hdmi(connector);
 	struct vc4_dev *vc4 = to_vc4_dev(connector->dev);
+	const struct drm_edid *drm_edid;
 	int ret = 0;
-	struct edid *edid;
 
 	/*
-	 * NOTE: This function should really take vc4_hdmi->mutex, but
+	 * NOTE: This function should really take vc4_hdmi->mutex, but doing so
-	 * doing so results in reentrancy issues since
+	 * results in reentrancy issues since cec_s_phys_addr() might call
-	 * cec_s_phys_addr_from_edid might call .adap_enable, which
+	 * .adap_enable, which leads to that funtion being called with our mutex
-	 * leads to that funtion being called with our mutex held.
+	 * held.
 	 *
 	 * Concurrency isn't an issue at the moment since we don't share
 	 * any state with any of the other frameworks so we can ignore
 	 * the lock for now.
 	 */
 
-	edid = drm_get_edid(connector, vc4_hdmi->ddc);
+	drm_edid = drm_edid_read_ddc(connector, vc4_hdmi->ddc);
-	cec_s_phys_addr_from_edid(vc4_hdmi->cec_adap, edid);
+	drm_edid_connector_update(connector, drm_edid);
-	if (!edid)
+	cec_s_phys_addr(vc4_hdmi->cec_adap,
+			connector->display_info.source_physical_address, false);
+	if (!drm_edid)
 		return 0;
 
-	drm_connector_update_edid_property(connector, edid);
+	ret = drm_edid_connector_add_modes(connector);
-	ret = drm_add_edid_modes(connector, edid);
+	drm_edid_free(drm_edid);
-	kfree(edid);
 
 	if (!vc4->hvs->vc5_hdmi_enable_hdmi_20) {
 		struct drm_device *drm = connector->dev;

drivers/gpu/drm/vmwgfx/vmwgfx_gem.c

@@ -30,6 +30,8 @@
 #include "drm/drm_prime.h"
 #include "drm/drm_gem_ttm_helper.h"
 
+#include <linux/debugfs.h>
+
 static void vmw_gem_object_free(struct drm_gem_object *gobj)
 {
 	struct ttm_buffer_object *bo = drm_gem_ttm_of_gem(gobj);

drivers/gpu/drm/xe/xe_debugfs.c

@@ -5,6 +5,7 @@
 
 #include "xe_debugfs.h"
 
+#include <linux/debugfs.h>
 #include <linux/string_helpers.h>
 
 #include <drm/drm_debugfs.h>

drivers/gpu/drm/xe/xe_gt_debugfs.c

@@ -5,6 +5,8 @@
 
 #include "xe_gt_debugfs.h"
 
+#include <linux/debugfs.h>
+
 #include <drm/drm_debugfs.h>
 #include <drm/drm_managed.h>
 

drivers/gpu/drm/xe/xe_ttm_vram_mgr.c

@@ -196,7 +196,7 @@ static int xe_ttm_vram_mgr_new(struct ttm_resource_manager *man,
 	return 0;
 
 error_free_blocks:
-	drm_buddy_free_list(mm, &vres->blocks);
+	drm_buddy_free_list(mm, &vres->blocks, 0);
 	mutex_unlock(&mgr->lock);
 error_fini:
 	ttm_resource_fini(man, &vres->base);
@@ -214,7 +214,7 @@ static void xe_ttm_vram_mgr_del(struct ttm_resource_manager *man,
 	struct drm_buddy *mm = &mgr->mm;
 
 	mutex_lock(&mgr->lock);
-	drm_buddy_free_list(mm, &vres->blocks);
+	drm_buddy_free_list(mm, &vres->blocks, 0);
 	mgr->visible_avail += vres->used_visible_size;
 	mutex_unlock(&mgr->lock);
 

drivers/gpu/drm/xe/xe_uc_debugfs.c

@@ -3,6 +3,8 @@
  * Copyright © 2022 Intel Corporation
  */
 
+#include <linux/debugfs.h>
+
 #include <drm/drm_debugfs.h>
 
 #include "xe_gt.h"

drivers/gpu/drm/xlnx/zynqmp_disp.c

@@ -18,6 +18,7 @@
 #include <linux/dma/xilinx_dpdma.h>
 #include <linux/dma-mapping.h>
 #include <linux/dmaengine.h>
+#include <linux/media-bus-format.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
@@ -64,15 +65,27 @@
 
 #define ZYNQMP_DISP_MAX_NUM_SUB_PLANES			3
 
+/**
+ * enum zynqmp_dpsub_layer_mode - Layer mode
+ * @ZYNQMP_DPSUB_LAYER_NONLIVE: non-live (memory) mode
+ * @ZYNQMP_DPSUB_LAYER_LIVE: live (stream) mode
+ */
+enum zynqmp_dpsub_layer_mode {
+	ZYNQMP_DPSUB_LAYER_NONLIVE,
+	ZYNQMP_DPSUB_LAYER_LIVE,
+};
+
 /**
  * struct zynqmp_disp_format - Display subsystem format information
  * @drm_fmt: DRM format (4CC)
+ * @bus_fmt: Media bus format
  * @buf_fmt: AV buffer format
  * @swap: Flag to swap R & B for RGB formats, and U & V for YUV formats
  * @sf: Scaling factors for color components
  */
 struct zynqmp_disp_format {
 	u32 drm_fmt;
+	u32 bus_fmt;
 	u32 buf_fmt;
 	bool swap;
 	const u32 *sf;
@@ -172,6 +185,12 @@ static const u32 scaling_factors_565[] = {
 	ZYNQMP_DISP_AV_BUF_5BIT_SF,
 };
 
+static const u32 scaling_factors_666[] = {
+	ZYNQMP_DISP_AV_BUF_6BIT_SF,
+	ZYNQMP_DISP_AV_BUF_6BIT_SF,
+	ZYNQMP_DISP_AV_BUF_6BIT_SF,
+};
+
 static const u32 scaling_factors_888[] = {
 	ZYNQMP_DISP_AV_BUF_8BIT_SF,
 	ZYNQMP_DISP_AV_BUF_8BIT_SF,
@@ -354,6 +373,41 @@ static const struct zynqmp_disp_format avbuf_gfx_fmts[] = {
 	},
 };
 
+/* List of live video layer formats */
+static const struct zynqmp_disp_format avbuf_live_fmts[] = {
+	{
+		.drm_fmt	= DRM_FORMAT_RGB565,
+		.bus_fmt	= MEDIA_BUS_FMT_RGB666_1X18,
+		.buf_fmt	= ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_BPC_6 |
+				  ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_FMT_RGB,
+		.sf		= scaling_factors_666,
+	}, {
+		.drm_fmt	= DRM_FORMAT_RGB888,
+		.bus_fmt	= MEDIA_BUS_FMT_RGB888_1X24,
+		.buf_fmt	= ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_BPC_8 |
+				  ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_FMT_RGB,
+		.sf		= scaling_factors_888,
+	}, {
+		.drm_fmt	= DRM_FORMAT_YUV422,
+		.bus_fmt	= MEDIA_BUS_FMT_UYVY8_1X16,
+		.buf_fmt	= ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_BPC_8 |
+				  ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_FMT_YUV422,
+		.sf		= scaling_factors_888,
+	}, {
+		.drm_fmt	= DRM_FORMAT_YUV444,
+		.bus_fmt	= MEDIA_BUS_FMT_VUY8_1X24,
+		.buf_fmt	= ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_BPC_8 |
+				  ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_FMT_YUV444,
+		.sf		= scaling_factors_888,
+	}, {
+		.drm_fmt	= DRM_FORMAT_P210,
+		.bus_fmt	= MEDIA_BUS_FMT_UYVY10_1X20,
+		.buf_fmt	= ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_BPC_10 |
+				  ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_FMT_YUV422,
+		.sf		= scaling_factors_101010,
+	},
+};
+
 static u32 zynqmp_disp_avbuf_read(struct zynqmp_disp *disp, int reg)
 {
 	return readl(disp->avbuf.base + reg);
@@ -382,19 +436,29 @@ static void zynqmp_disp_avbuf_set_format(struct zynqmp_disp *disp,
 					 const struct zynqmp_disp_format *fmt)
 {
 	unsigned int i;
-	u32 val;
+	u32 val, reg;
 
-	val = zynqmp_disp_avbuf_read(disp, ZYNQMP_DISP_AV_BUF_FMT);
+	layer->disp_fmt = fmt;
-	val &= zynqmp_disp_layer_is_video(layer)
+	if (layer->mode == ZYNQMP_DPSUB_LAYER_NONLIVE) {
-	    ? ~ZYNQMP_DISP_AV_BUF_FMT_NL_VID_MASK
+		reg = ZYNQMP_DISP_AV_BUF_FMT;
-	    : ~ZYNQMP_DISP_AV_BUF_FMT_NL_GFX_MASK;
+		val = zynqmp_disp_avbuf_read(disp, ZYNQMP_DISP_AV_BUF_FMT);
-	val |= fmt->buf_fmt;
+		val &= zynqmp_disp_layer_is_video(layer)
-	zynqmp_disp_avbuf_write(disp, ZYNQMP_DISP_AV_BUF_FMT, val);
+		    ? ~ZYNQMP_DISP_AV_BUF_FMT_NL_VID_MASK
+		    : ~ZYNQMP_DISP_AV_BUF_FMT_NL_GFX_MASK;
+		val |= fmt->buf_fmt;
+		zynqmp_disp_avbuf_write(disp, reg, val);
+	} else {
+		reg = zynqmp_disp_layer_is_video(layer)
+		    ? ZYNQMP_DISP_AV_BUF_LIVE_VID_CONFIG
+		    : ZYNQMP_DISP_AV_BUF_LIVE_GFX_CONFIG;
+		val = fmt->buf_fmt;
+		zynqmp_disp_avbuf_write(disp, reg, val);
+	}
 
 	for (i = 0; i < ZYNQMP_DISP_AV_BUF_NUM_SF; i++) {
-		unsigned int reg = zynqmp_disp_layer_is_video(layer)
+		reg = zynqmp_disp_layer_is_video(layer)
-				 ? ZYNQMP_DISP_AV_BUF_VID_COMP_SF(i)
+		    ? ZYNQMP_DISP_AV_BUF_VID_COMP_SF(i)
-				 : ZYNQMP_DISP_AV_BUF_GFX_COMP_SF(i);
+		    : ZYNQMP_DISP_AV_BUF_GFX_COMP_SF(i);
 
 		zynqmp_disp_avbuf_write(disp, reg, fmt->sf[i]);
 	}
@@ -872,11 +936,41 @@ zynqmp_disp_layer_find_format(struct zynqmp_disp_layer *layer,
 	return NULL;
 }
 
+/**
+ * zynqmp_disp_layer_find_live_format - Find format information for given
+ * media bus format
+ * @layer: The layer
+ * @drm_fmt: Media bus format to search
+ *
+ * Search display subsystem format information corresponding to the given media
+ * bus format @media_bus_format for the @layer, and return a pointer to the
+ * format descriptor.
+ *
+ * Return: A pointer to the format descriptor if found, NULL otherwise
+ */
+static const struct zynqmp_disp_format *
+zynqmp_disp_layer_find_live_format(struct zynqmp_disp_layer *layer,
+				   u32 media_bus_format)
+{
+	unsigned int i;
+
+	for (i = 0; i < layer->info->num_formats; i++)
+		if (layer->info->formats[i].bus_fmt == media_bus_format)
+			return &layer->info->formats[i];
+
+	return NULL;
+}
+
 /**
  * zynqmp_disp_layer_drm_formats - Return the DRM formats supported by the layer
  * @layer: The layer
  * @num_formats: Pointer to the returned number of formats
  *
+ * NOTE: This function doesn't make sense for live video layers and will
+ * always return an empty list in such cases. zynqmp_disp_live_layer_formats()
+ * should be used to query a list of media bus formats supported by the live
+ * video input layer.
+ *
  * Return: A newly allocated u32 array that stores all the DRM formats
  * supported by the layer. The number of formats in the array is returned
  * through the num_formats argument.
@@ -887,10 +981,17 @@ u32 *zynqmp_disp_layer_drm_formats(struct zynqmp_disp_layer *layer,
 	unsigned int i;
 	u32 *formats;
 
+	if (WARN_ON(!layer->mode == ZYNQMP_DPSUB_LAYER_NONLIVE)) {
+		*num_formats = 0;
+		return NULL;
+	}
+
 	formats = kcalloc(layer->info->num_formats, sizeof(*formats),
 			  GFP_KERNEL);
-	if (!formats)
+	if (!formats) {
+		*num_formats = 0;
 		return NULL;
+	}
 
 	for (i = 0; i < layer->info->num_formats; ++i)
 		formats[i] = layer->info->formats[i].drm_fmt;
@@ -899,18 +1000,52 @@ u32 *zynqmp_disp_layer_drm_formats(struct zynqmp_disp_layer *layer,
 	return formats;
 }
 
+/**
+ * zynqmp_disp_live_layer_formats - Return the media bus formats supported by
+ * the live video layer
+ * @layer: The layer
+ * @num_formats: Pointer to the returned number of formats
+ *
+ * NOTE: This function should be used only for live video input layers.
+ *
+ * Return: A newly allocated u32 array of media bus formats supported by the
+ * layer. The number of formats in the array is returned through the
+ * @num_formats argument.
+ */
+u32 *zynqmp_disp_live_layer_formats(struct zynqmp_disp_layer *layer,
+				    unsigned int *num_formats)
+{
+	unsigned int i;
+	u32 *formats;
+
+	if (WARN_ON(layer->mode != ZYNQMP_DPSUB_LAYER_LIVE)) {
+		*num_formats = 0;
+		return NULL;
+	}
+
+	formats = kcalloc(layer->info->num_formats, sizeof(*formats),
+			  GFP_KERNEL);
+	if (!formats) {
+		*num_formats = 0;
+		return NULL;
+	}
+
+	for (i = 0; i < layer->info->num_formats; ++i)
+		formats[i] = layer->info->formats[i].bus_fmt;
+
+	*num_formats = layer->info->num_formats;
+	return formats;
+}
+
 /**
  * zynqmp_disp_layer_enable - Enable a layer
  * @layer: The layer
- * @mode: Operating mode of layer
  *
  * Enable the @layer in the audio/video buffer manager and the blender. DMA
  * channels are started separately by zynqmp_disp_layer_update().
  */
-void zynqmp_disp_layer_enable(struct zynqmp_disp_layer *layer,
+void zynqmp_disp_layer_enable(struct zynqmp_disp_layer *layer)
-			      enum zynqmp_dpsub_layer_mode mode)
 {
-	layer->mode = mode;
 	zynqmp_disp_avbuf_enable_video(layer->disp, layer);
 	zynqmp_disp_blend_layer_enable(layer->disp, layer);
 }
@@ -926,7 +1061,7 @@ void zynqmp_disp_layer_disable(struct zynqmp_disp_layer *layer)
 {
 	unsigned int i;
 
-	if (layer->disp->dpsub->dma_enabled) {
+	if (layer->mode == ZYNQMP_DPSUB_LAYER_NONLIVE) {
 		for (i = 0; i < layer->drm_fmt->num_planes; i++)
 			dmaengine_terminate_sync(layer->dmas[i].chan);
 	}
@@ -940,6 +1075,9 @@ void zynqmp_disp_layer_disable(struct zynqmp_disp_layer *layer)
  * @layer: The layer
  * @info: The format info
  *
+ * NOTE: Use zynqmp_disp_layer_set_live_format() to set media bus format for
+ * live video layers.
+ *
  * Set the format for @layer to @info. The layer must be disabled.
  */
 void zynqmp_disp_layer_set_format(struct zynqmp_disp_layer *layer,
@@ -947,14 +1085,16 @@ void zynqmp_disp_layer_set_format(struct zynqmp_disp_layer *layer,
 {
 	unsigned int i;
 
+	if (WARN_ON(layer->mode != ZYNQMP_DPSUB_LAYER_NONLIVE))
+		return;
+
 	layer->disp_fmt = zynqmp_disp_layer_find_format(layer, info->format);
+	if (WARN_ON(!layer->disp_fmt))
+		return;
 	layer->drm_fmt = info;
 
 	zynqmp_disp_avbuf_set_format(layer->disp, layer, layer->disp_fmt);
 
-	if (!layer->disp->dpsub->dma_enabled)
-		return;
-
 	/*
 	 * Set pconfig for each DMA channel to indicate they're part of a
 	 * video group.
@@ -974,6 +1114,32 @@ void zynqmp_disp_layer_set_format(struct zynqmp_disp_layer *layer,
 	}
 }
 
+/**
+ * zynqmp_disp_layer_set_live_format - Set the live video layer format
+ * @layer: The layer
+ * @info: The format info
+ *
+ * NOTE: This function should not be used to set format for non-live video
+ * layer. Use zynqmp_disp_layer_set_format() instead.
+ *
+ * Set the display format for the live @layer. The layer must be disabled.
+ */
+void zynqmp_disp_layer_set_live_format(struct zynqmp_disp_layer *layer,
+				       u32 media_bus_format)
+{
+	if (WARN_ON(layer->mode != ZYNQMP_DPSUB_LAYER_LIVE))
+		return;
+
+	layer->disp_fmt = zynqmp_disp_layer_find_live_format(layer,
+							     media_bus_format);
+	if (WARN_ON(!layer->disp_fmt))
+		return;
+
+	zynqmp_disp_avbuf_set_format(layer->disp, layer, layer->disp_fmt);
+
+	layer->drm_fmt = drm_format_info(layer->disp_fmt->drm_fmt);
+}
+
 /**
  * zynqmp_disp_layer_update - Update the layer framebuffer
  * @layer: The layer
@@ -990,7 +1156,7 @@ int zynqmp_disp_layer_update(struct zynqmp_disp_layer *layer,
 	const struct drm_format_info *info = layer->drm_fmt;
 	unsigned int i;
 
-	if (!layer->disp->dpsub->dma_enabled)
+	if (layer->mode == ZYNQMP_DPSUB_LAYER_LIVE)
 		return 0;
 
 	for (i = 0; i < info->num_planes; i++) {
@@ -1040,9 +1206,6 @@ static void zynqmp_disp_layer_release_dma(struct zynqmp_disp *disp,
 {
 	unsigned int i;
 
-	if (!layer->info || !disp->dpsub->dma_enabled)
-		return;
-
 	for (i = 0; i < layer->info->num_channels; i++) {
 		struct zynqmp_disp_layer_dma *dma = &layer->dmas[i];
 
@@ -1083,9 +1246,6 @@ static int zynqmp_disp_layer_request_dma(struct zynqmp_disp *disp,
 	unsigned int i;
 	int ret;
 
-	if (!disp->dpsub->dma_enabled)
-		return 0;
-
 	for (i = 0; i < layer->info->num_channels; i++) {
 		struct zynqmp_disp_layer_dma *dma = &layer->dmas[i];
 		char dma_channel_name[16];
@@ -1124,6 +1284,11 @@ static int zynqmp_disp_create_layers(struct zynqmp_disp *disp)
 			.num_channels = 1,
 		},
 	};
+	static const struct zynqmp_disp_layer_info live_layer_info = {
+		.formats = avbuf_live_fmts,
+		.num_formats = ARRAY_SIZE(avbuf_live_fmts),
+		.num_channels = 0,
+	};
 
 	unsigned int i;
 	int ret;
@@ -1133,7 +1298,17 @@ static int zynqmp_disp_create_layers(struct zynqmp_disp *disp)
 
 		layer->id = i;
 		layer->disp = disp;
-		layer->info = &layer_info[i];
+		/*
+		 * For now assume dpsub works in either live or non-live mode for both layers.
+		 * Hybrid mode is not supported yet.
+		 */
+		if (disp->dpsub->dma_enabled) {
+			layer->mode = ZYNQMP_DPSUB_LAYER_NONLIVE;
+			layer->info = &layer_info[i];
+		} else {
+			layer->mode = ZYNQMP_DPSUB_LAYER_LIVE;
+			layer->info = &live_layer_info;
+		}
 
 		ret = zynqmp_disp_layer_request_dma(disp, layer);
 		if (ret)

drivers/gpu/drm/xlnx/zynqmp_disp.h

@@ -42,16 +42,6 @@ enum zynqmp_dpsub_layer_id {
 	ZYNQMP_DPSUB_LAYER_GFX,
 };
 
-/**
- * enum zynqmp_dpsub_layer_mode - Layer mode
- * @ZYNQMP_DPSUB_LAYER_NONLIVE: non-live (memory) mode
- * @ZYNQMP_DPSUB_LAYER_LIVE: live (stream) mode
- */
-enum zynqmp_dpsub_layer_mode {
-	ZYNQMP_DPSUB_LAYER_NONLIVE,
-	ZYNQMP_DPSUB_LAYER_LIVE,
-};
-
 void zynqmp_disp_enable(struct zynqmp_disp *disp);
 void zynqmp_disp_disable(struct zynqmp_disp *disp);
 int zynqmp_disp_setup_clock(struct zynqmp_disp *disp,
@@ -62,11 +52,14 @@ void zynqmp_disp_blend_set_global_alpha(struct zynqmp_disp *disp,
 
 u32 *zynqmp_disp_layer_drm_formats(struct zynqmp_disp_layer *layer,
 				   unsigned int *num_formats);
-void zynqmp_disp_layer_enable(struct zynqmp_disp_layer *layer,
+u32 *zynqmp_disp_live_layer_formats(struct zynqmp_disp_layer *layer,
-			      enum zynqmp_dpsub_layer_mode mode);
+				    unsigned int *num_formats);
+void zynqmp_disp_layer_enable(struct zynqmp_disp_layer *layer);
 void zynqmp_disp_layer_disable(struct zynqmp_disp_layer *layer);
 void zynqmp_disp_layer_set_format(struct zynqmp_disp_layer *layer,
 				  const struct drm_format_info *info);
+void zynqmp_disp_layer_set_live_format(struct zynqmp_disp_layer *layer,
+				       u32 media_bus_format);
 int zynqmp_disp_layer_update(struct zynqmp_disp_layer *layer,
 			     struct drm_plane_state *state);
 

drivers/gpu/drm/xlnx/zynqmp_disp_regs.h

@@ -165,10 +165,10 @@
 #define ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_BPC_10		0x2
 #define ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_BPC_12		0x3
 #define ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_BPC_MASK		GENMASK(2, 0)
-#define ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_FMT_RGB		0x0
+#define ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_FMT_RGB		(0x0 << 4)
-#define ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_FMT_YUV444	0x1
+#define ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_FMT_YUV444	(0x1 << 4)
-#define ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_FMT_YUV422	0x2
+#define ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_FMT_YUV422	(0x2 << 4)
-#define ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_FMT_YONLY	0x3
+#define ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_FMT_YONLY	(0x3 << 4)
 #define ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_FMT_MASK		GENMASK(5, 4)
 #define ZYNQMP_DISP_AV_BUF_LIVE_CONFIG_CB_FIRST		BIT(8)
 #define ZYNQMP_DISP_AV_BUF_PALETTE_MEMORY		0x400

drivers/gpu/drm/xlnx/zynqmp_dp.c

@@ -22,6 +22,7 @@
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/io.h>
+#include <linux/media-bus-format.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
@@ -1276,28 +1277,45 @@ static void zynqmp_dp_encoder_mode_set_stream(struct zynqmp_dp *dp,
  * DISP Configuration
  */
 
+/**
+ * zynqmp_dp_disp_connected_live_layer - Return the first connected live layer
+ * @dp: DisplayPort IP core structure
+ *
+ * Return: The first connected live display layer or NULL if none of the live
+ * layers are connected.
+ */
+static struct zynqmp_disp_layer *
+zynqmp_dp_disp_connected_live_layer(struct zynqmp_dp *dp)
+{
+	if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_VIDEO))
+		return dp->dpsub->layers[ZYNQMP_DPSUB_LAYER_VID];
+	else if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_GFX))
+		return dp->dpsub->layers[ZYNQMP_DPSUB_LAYER_GFX];
+	else
+		return NULL;
+}
+
 static void zynqmp_dp_disp_enable(struct zynqmp_dp *dp,
 				  struct drm_bridge_state *old_bridge_state)
 {
-	enum zynqmp_dpsub_layer_id layer_id;
 	struct zynqmp_disp_layer *layer;
-	const struct drm_format_info *info;
+	struct drm_bridge_state *bridge_state;
+	u32 bus_fmt;
 
-	if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_VIDEO))
+	layer = zynqmp_dp_disp_connected_live_layer(dp);
-		layer_id = ZYNQMP_DPSUB_LAYER_VID;
+	if (!layer)
-	else if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_GFX))
-		layer_id = ZYNQMP_DPSUB_LAYER_GFX;
-	else
 		return;
 
-	layer = dp->dpsub->layers[layer_id];
+	bridge_state = drm_atomic_get_new_bridge_state(old_bridge_state->base.state,
+						       old_bridge_state->bridge);
+	if (WARN_ON(!bridge_state))
+		return;
 
-	/* TODO: Make the format configurable. */
+	bus_fmt = bridge_state->input_bus_cfg.format;
-	info = drm_format_info(DRM_FORMAT_YUV422);
+	zynqmp_disp_layer_set_live_format(layer, bus_fmt);
-	zynqmp_disp_layer_set_format(layer, info);
+	zynqmp_disp_layer_enable(layer);
-	zynqmp_disp_layer_enable(layer, ZYNQMP_DPSUB_LAYER_LIVE);
 
-	if (layer_id == ZYNQMP_DPSUB_LAYER_GFX)
+	if (layer == dp->dpsub->layers[ZYNQMP_DPSUB_LAYER_GFX])
 		zynqmp_disp_blend_set_global_alpha(dp->dpsub->disp, true, 255);
 	else
 		zynqmp_disp_blend_set_global_alpha(dp->dpsub->disp, false, 0);
@@ -1310,11 +1328,8 @@ static void zynqmp_dp_disp_disable(struct zynqmp_dp *dp,
 {
 	struct zynqmp_disp_layer *layer;
 
-	if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_VIDEO))
+	layer = zynqmp_dp_disp_connected_live_layer(dp);
-		layer = dp->dpsub->layers[ZYNQMP_DPSUB_LAYER_VID];
+	if (!layer)
-	else if (dp->dpsub->connected_ports & BIT(ZYNQMP_DPSUB_PORT_LIVE_GFX))
-		layer = dp->dpsub->layers[ZYNQMP_DPSUB_LAYER_GFX];
-	else
 		return;
 
 	zynqmp_disp_disable(dp->dpsub->disp);
@@ -1568,6 +1583,35 @@ static const struct drm_edid *zynqmp_dp_bridge_edid_read(struct drm_bridge *brid
 	return drm_edid_read_ddc(connector, &dp->aux.ddc);
 }
 
+static u32 *zynqmp_dp_bridge_default_bus_fmts(unsigned int *num_input_fmts)
+{
+	u32 *formats = kzalloc(sizeof(*formats), GFP_KERNEL);
+
+	if (formats)
+		*formats = MEDIA_BUS_FMT_FIXED;
+	*num_input_fmts = !!formats;
+
+	return formats;
+}
+
+static u32 *
+zynqmp_dp_bridge_get_input_bus_fmts(struct drm_bridge *bridge,
+				    struct drm_bridge_state *bridge_state,
+				    struct drm_crtc_state *crtc_state,
+				    struct drm_connector_state *conn_state,
+				    u32 output_fmt,
+				    unsigned int *num_input_fmts)
+{
+	struct zynqmp_dp *dp = bridge_to_dp(bridge);
+	struct zynqmp_disp_layer *layer;
+
+	layer = zynqmp_dp_disp_connected_live_layer(dp);
+	if (layer)
+		return zynqmp_disp_live_layer_formats(layer, num_input_fmts);
+	else
+		return zynqmp_dp_bridge_default_bus_fmts(num_input_fmts);
+}
+
 static const struct drm_bridge_funcs zynqmp_dp_bridge_funcs = {
 	.attach = zynqmp_dp_bridge_attach,
 	.detach = zynqmp_dp_bridge_detach,
@@ -1580,6 +1624,7 @@ static const struct drm_bridge_funcs zynqmp_dp_bridge_funcs = {
 	.atomic_check = zynqmp_dp_bridge_atomic_check,
 	.detect = zynqmp_dp_bridge_detect,
 	.edid_read = zynqmp_dp_bridge_edid_read,
+	.atomic_get_input_bus_fmts = zynqmp_dp_bridge_get_input_bus_fmts,
 };
 
 /* -----------------------------------------------------------------------------

drivers/gpu/drm/xlnx/zynqmp_kms.c

@@ -122,7 +122,7 @@ static void zynqmp_dpsub_plane_atomic_update(struct drm_plane *plane,
 
 	/* Enable or re-enable the plane if the format has changed. */
 	if (format_changed)
-		zynqmp_disp_layer_enable(layer, ZYNQMP_DPSUB_LAYER_NONLIVE);
+		zynqmp_disp_layer_enable(layer);
 }
 
 static const struct drm_plane_helper_funcs zynqmp_dpsub_plane_helper_funcs = {

include/drm/drm_buddy.h

@@ -25,6 +25,8 @@
 #define DRM_BUDDY_RANGE_ALLOCATION		BIT(0)
 #define DRM_BUDDY_TOPDOWN_ALLOCATION		BIT(1)
 #define DRM_BUDDY_CONTIGUOUS_ALLOCATION		BIT(2)
+#define DRM_BUDDY_CLEAR_ALLOCATION		BIT(3)
+#define DRM_BUDDY_CLEARED			BIT(4)
 
 struct drm_buddy_block {
 #define DRM_BUDDY_HEADER_OFFSET GENMASK_ULL(63, 12)
@@ -32,8 +34,9 @@ struct drm_buddy_block {
 #define   DRM_BUDDY_ALLOCATED	   (1 << 10)
 #define   DRM_BUDDY_FREE	   (2 << 10)
 #define   DRM_BUDDY_SPLIT	   (3 << 10)
+#define DRM_BUDDY_HEADER_CLEAR  GENMASK_ULL(9, 9)
 /* Free to be used, if needed in the future */
-#define DRM_BUDDY_HEADER_UNUSED GENMASK_ULL(9, 6)
+#define DRM_BUDDY_HEADER_UNUSED GENMASK_ULL(8, 6)
 #define DRM_BUDDY_HEADER_ORDER  GENMASK_ULL(5, 0)
 	u64 header;
 
@@ -86,6 +89,7 @@ struct drm_buddy {
 	u64 chunk_size;
 	u64 size;
 	u64 avail;
+	u64 clear_avail;
 };
 
 static inline u64
@@ -112,6 +116,12 @@ drm_buddy_block_is_allocated(struct drm_buddy_block *block)
 	return drm_buddy_block_state(block) == DRM_BUDDY_ALLOCATED;
 }
 
+static inline bool
+drm_buddy_block_is_clear(struct drm_buddy_block *block)
+{
+	return block->header & DRM_BUDDY_HEADER_CLEAR;
+}
+
 static inline bool
 drm_buddy_block_is_free(struct drm_buddy_block *block)
 {
@@ -150,7 +160,9 @@ int drm_buddy_block_trim(struct drm_buddy *mm,
 
 void drm_buddy_free_block(struct drm_buddy *mm, struct drm_buddy_block *block);
 
-void drm_buddy_free_list(struct drm_buddy *mm, struct list_head *objects);
+void drm_buddy_free_list(struct drm_buddy *mm,
+			 struct list_head *objects,
+			 unsigned int flags);
 
 void drm_buddy_print(struct drm_buddy *mm, struct drm_printer *p);
 void drm_buddy_block_print(struct drm_buddy *mm,

include/drm/drm_mode_config.h

@@ -953,7 +953,7 @@ struct drm_mode_config {
 	struct drm_property *modifiers_property;
 
 	/**
-	 * @size_hints_propertty: Plane SIZE_HINTS property.
+	 * @size_hints_property: Plane SIZE_HINTS property.
 	 */
 	struct drm_property *size_hints_property;
 

include/drm/drm_print.h

@@ -28,14 +28,14 @@
 
 #include <linux/compiler.h>
 #include <linux/printk.h>
-#include <linux/seq_file.h>
 #include <linux/device.h>
-#include <linux/debugfs.h>
 #include <linux/dynamic_debug.h>
 
 #include <drm/drm.h>
 
+struct debugfs_regset32;
 struct drm_device;
+struct seq_file;
 
 /* Do *not* use outside of drm_print.[ch]! */
 extern unsigned long __drm_debug;