drm/nouveau/secboot: support for r375 ACR

r375 ACR uses a unified bootloader descriptor for the GR and PMU
firmwares.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nvkm/subdev/secboot/Kbuild

@@ -6,5 +6,6 @@ nvkm-y += nvkm/subdev/secboot/acr_r352.o
 nvkm-y += nvkm/subdev/secboot/acr_r361.o
 nvkm-y += nvkm/subdev/secboot/acr_r364.o
 nvkm-y += nvkm/subdev/secboot/acr_r367.o
+nvkm-y += nvkm/subdev/secboot/acr_r375.o
 nvkm-y += nvkm/subdev/secboot/gm200.o
 nvkm-y += nvkm/subdev/secboot/gm20b.o

drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr.h

@@ -65,5 +65,6 @@ struct nvkm_acr *acr_r352_new(unsigned long);
 struct nvkm_acr *acr_r361_new(unsigned long);
 struct nvkm_acr *acr_r364_new(unsigned long);
 struct nvkm_acr *acr_r367_new(enum nvkm_secboot_falcon, unsigned long);
+struct nvkm_acr *acr_r375_new(enum nvkm_secboot_falcon, unsigned long);
 
 #endif

drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r375.c

@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "acr_r367.h"
+
+#include <engine/falcon.h>
+#include <core/msgqueue.h>
+#include <subdev/pmu.h>
+
+/*
+ * r375 ACR: similar to r367, but with a unified bootloader descriptor
+ * structure for GR and PMU falcons.
+ */
+
+/* Same as acr_r361_flcn_bl_desc, plus argc/argv */
+struct acr_r375_flcn_bl_desc {
+	u32 reserved[4];
+	u32 signature[4];
+	u32 ctx_dma;
+	struct flcn_u64 code_dma_base;
+	u32 non_sec_code_off;
+	u32 non_sec_code_size;
+	u32 sec_code_off;
+	u32 sec_code_size;
+	u32 code_entry_point;
+	struct flcn_u64 data_dma_base;
+	u32 data_size;
+	u32 argc;
+	u32 argv;
+};
+
+static void
+acr_r375_generate_flcn_bl_desc(const struct nvkm_acr *acr,
+			       const struct ls_ucode_img *img, u64 wpr_addr,
+			       void *_desc)
+{
+	struct acr_r375_flcn_bl_desc *desc = _desc;
+	const struct ls_ucode_img_desc *pdesc = &img->ucode_desc;
+	u64 base, addr_code, addr_data;
+
+	base = wpr_addr + img->ucode_off + pdesc->app_start_offset;
+	addr_code = base + pdesc->app_resident_code_offset;
+	addr_data = base + pdesc->app_resident_data_offset;
+
+	desc->ctx_dma = FALCON_DMAIDX_UCODE;
+	desc->code_dma_base = u64_to_flcn64(addr_code);
+	desc->non_sec_code_off = pdesc->app_resident_code_offset;
+	desc->non_sec_code_size = pdesc->app_resident_code_size;
+	desc->code_entry_point = pdesc->app_imem_entry;
+	desc->data_dma_base = u64_to_flcn64(addr_data);
+	desc->data_size = pdesc->app_resident_data_size;
+}
+
+static void
+acr_r375_generate_hs_bl_desc(const struct hsf_load_header *hdr, void *_bl_desc,
+			     u64 offset)
+{
+	struct acr_r375_flcn_bl_desc *bl_desc = _bl_desc;
+
+	bl_desc->ctx_dma = FALCON_DMAIDX_VIRT;
+	bl_desc->non_sec_code_off = hdr->non_sec_code_off;
+	bl_desc->non_sec_code_size = hdr->non_sec_code_size;
+	bl_desc->sec_code_off = hsf_load_header_app_off(hdr, 0);
+	bl_desc->sec_code_size = hsf_load_header_app_size(hdr, 0);
+	bl_desc->code_entry_point = 0;
+	bl_desc->code_dma_base = u64_to_flcn64(offset);
+	bl_desc->data_dma_base = u64_to_flcn64(offset + hdr->data_dma_base);
+	bl_desc->data_size = hdr->data_size;
+}
+
+const struct acr_r352_ls_func
+acr_r375_ls_fecs_func = {
+	.load = acr_ls_ucode_load_fecs,
+	.generate_bl_desc = acr_r375_generate_flcn_bl_desc,
+	.bl_desc_size = sizeof(struct acr_r375_flcn_bl_desc),
+};
+
+const struct acr_r352_ls_func
+acr_r375_ls_gpccs_func = {
+	.load = acr_ls_ucode_load_gpccs,
+	.generate_bl_desc = acr_r375_generate_flcn_bl_desc,
+	.bl_desc_size = sizeof(struct acr_r375_flcn_bl_desc),
+	/* GPCCS will be loaded using PRI */
+	.lhdr_flags = LSF_FLAG_FORCE_PRIV_LOAD,
+};
+
+
+static void
+acr_r375_generate_pmu_bl_desc(const struct nvkm_acr *acr,
+			      const struct ls_ucode_img *img, u64 wpr_addr,
+			      void *_desc)
+{
+	const struct ls_ucode_img_desc *pdesc = &img->ucode_desc;
+	const struct nvkm_pmu *pmu = acr->subdev->device->pmu;
+	struct acr_r375_flcn_bl_desc *desc = _desc;
+	u64 base, addr_code, addr_data;
+	u32 addr_args;
+
+	base = wpr_addr + img->ucode_off + pdesc->app_start_offset;
+	addr_code = base + pdesc->app_resident_code_offset;
+	addr_data = base + pdesc->app_resident_data_offset;
+	addr_args = pmu->falcon->data.limit;
+	addr_args -= NVKM_MSGQUEUE_CMDLINE_SIZE;
+
+	desc->ctx_dma = FALCON_DMAIDX_UCODE;
+	desc->code_dma_base = u64_to_flcn64(addr_code);
+	desc->non_sec_code_off = pdesc->app_resident_code_offset;
+	desc->non_sec_code_size = pdesc->app_resident_code_size;
+	desc->code_entry_point = pdesc->app_imem_entry;
+	desc->data_dma_base = u64_to_flcn64(addr_data);
+	desc->data_size = pdesc->app_resident_data_size;
+	desc->argc = 1;
+	desc->argv = addr_args;
+}
+
+const struct acr_r352_ls_func
+acr_r375_ls_pmu_func = {
+	.load = acr_ls_ucode_load_pmu,
+	.generate_bl_desc = acr_r375_generate_pmu_bl_desc,
+	.bl_desc_size = sizeof(struct acr_r375_flcn_bl_desc),
+	.post_run = acr_ls_pmu_post_run,
+};
+
+
+const struct acr_r352_func
+acr_r375_func = {
+	.fixup_hs_desc = acr_r367_fixup_hs_desc,
+	.generate_hs_bl_desc = acr_r375_generate_hs_bl_desc,
+	.hs_bl_desc_size = sizeof(struct acr_r375_flcn_bl_desc),
+	.shadow_blob = true,
+	.ls_ucode_img_load = acr_r367_ls_ucode_img_load,
+	.ls_fill_headers = acr_r367_ls_fill_headers,
+	.ls_write_wpr = acr_r367_ls_write_wpr,
+	.ls_func = {
+		[NVKM_SECBOOT_FALCON_FECS] = &acr_r375_ls_fecs_func,
+		[NVKM_SECBOOT_FALCON_GPCCS] = &acr_r375_ls_gpccs_func,
+		[NVKM_SECBOOT_FALCON_PMU] = &acr_r375_ls_pmu_func,
+	},
+};
+
+struct nvkm_acr *
+acr_r375_new(enum nvkm_secboot_falcon boot_falcon,
+	     unsigned long managed_falcons)
+{
+	return acr_r352_new_(&acr_r375_func, boot_falcon, managed_falcons);
+}