mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-05 18:14:07 +08:00
c0b8892e24
Disable the plane if it's not visible. Otherwise mtk_ovl_layer_config()
would proceed with invalid plane and we may see vblank timeout.
Fixes: 119f517362
("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
253 lines
6.6 KiB
C
253 lines
6.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (c) 2015 MediaTek Inc.
|
|
* Author: CK Hu <ck.hu@mediatek.com>
|
|
*/
|
|
|
|
#include <drm/drm_atomic.h>
|
|
#include <drm/drm_atomic_helper.h>
|
|
#include <drm/drm_fourcc.h>
|
|
#include <drm/drm_atomic_uapi.h>
|
|
#include <drm/drm_plane_helper.h>
|
|
#include <drm/drm_gem_framebuffer_helper.h>
|
|
|
|
#include "mtk_drm_crtc.h"
|
|
#include "mtk_drm_ddp_comp.h"
|
|
#include "mtk_drm_drv.h"
|
|
#include "mtk_drm_gem.h"
|
|
#include "mtk_drm_plane.h"
|
|
|
|
static const u32 formats[] = {
|
|
DRM_FORMAT_XRGB8888,
|
|
DRM_FORMAT_ARGB8888,
|
|
DRM_FORMAT_BGRX8888,
|
|
DRM_FORMAT_BGRA8888,
|
|
DRM_FORMAT_ABGR8888,
|
|
DRM_FORMAT_XBGR8888,
|
|
DRM_FORMAT_RGB888,
|
|
DRM_FORMAT_BGR888,
|
|
DRM_FORMAT_RGB565,
|
|
DRM_FORMAT_UYVY,
|
|
DRM_FORMAT_YUYV,
|
|
};
|
|
|
|
static void mtk_plane_reset(struct drm_plane *plane)
|
|
{
|
|
struct mtk_plane_state *state;
|
|
|
|
if (plane->state) {
|
|
__drm_atomic_helper_plane_destroy_state(plane->state);
|
|
|
|
state = to_mtk_plane_state(plane->state);
|
|
memset(state, 0, sizeof(*state));
|
|
} else {
|
|
state = kzalloc(sizeof(*state), GFP_KERNEL);
|
|
if (!state)
|
|
return;
|
|
plane->state = &state->base;
|
|
}
|
|
|
|
state->base.plane = plane;
|
|
state->pending.format = DRM_FORMAT_RGB565;
|
|
}
|
|
|
|
static struct drm_plane_state *mtk_plane_duplicate_state(struct drm_plane *plane)
|
|
{
|
|
struct mtk_plane_state *old_state = to_mtk_plane_state(plane->state);
|
|
struct mtk_plane_state *state;
|
|
|
|
state = kzalloc(sizeof(*state), GFP_KERNEL);
|
|
if (!state)
|
|
return NULL;
|
|
|
|
__drm_atomic_helper_plane_duplicate_state(plane, &state->base);
|
|
|
|
WARN_ON(state->base.plane != plane);
|
|
|
|
state->pending = old_state->pending;
|
|
|
|
return &state->base;
|
|
}
|
|
|
|
static void mtk_drm_plane_destroy_state(struct drm_plane *plane,
|
|
struct drm_plane_state *state)
|
|
{
|
|
__drm_atomic_helper_plane_destroy_state(state);
|
|
kfree(to_mtk_plane_state(state));
|
|
}
|
|
|
|
static int mtk_plane_atomic_async_check(struct drm_plane *plane,
|
|
struct drm_plane_state *state)
|
|
{
|
|
struct drm_crtc_state *crtc_state;
|
|
int ret;
|
|
|
|
if (plane != state->crtc->cursor)
|
|
return -EINVAL;
|
|
|
|
if (!plane->state)
|
|
return -EINVAL;
|
|
|
|
if (!plane->state->fb)
|
|
return -EINVAL;
|
|
|
|
ret = mtk_drm_crtc_plane_check(state->crtc, plane,
|
|
to_mtk_plane_state(state));
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (state->state)
|
|
crtc_state = drm_atomic_get_existing_crtc_state(state->state,
|
|
state->crtc);
|
|
else /* Special case for asynchronous cursor updates. */
|
|
crtc_state = state->crtc->state;
|
|
|
|
return drm_atomic_helper_check_plane_state(plane->state, crtc_state,
|
|
DRM_PLANE_HELPER_NO_SCALING,
|
|
DRM_PLANE_HELPER_NO_SCALING,
|
|
true, true);
|
|
}
|
|
|
|
static void mtk_plane_atomic_async_update(struct drm_plane *plane,
|
|
struct drm_plane_state *new_state)
|
|
{
|
|
struct mtk_plane_state *state = to_mtk_plane_state(plane->state);
|
|
|
|
plane->state->crtc_x = new_state->crtc_x;
|
|
plane->state->crtc_y = new_state->crtc_y;
|
|
plane->state->crtc_h = new_state->crtc_h;
|
|
plane->state->crtc_w = new_state->crtc_w;
|
|
plane->state->src_x = new_state->src_x;
|
|
plane->state->src_y = new_state->src_y;
|
|
plane->state->src_h = new_state->src_h;
|
|
plane->state->src_w = new_state->src_w;
|
|
swap(plane->state->fb, new_state->fb);
|
|
state->pending.async_dirty = true;
|
|
|
|
mtk_drm_crtc_async_update(new_state->crtc, plane, new_state);
|
|
}
|
|
|
|
static const struct drm_plane_funcs mtk_plane_funcs = {
|
|
.update_plane = drm_atomic_helper_update_plane,
|
|
.disable_plane = drm_atomic_helper_disable_plane,
|
|
.destroy = drm_plane_cleanup,
|
|
.reset = mtk_plane_reset,
|
|
.atomic_duplicate_state = mtk_plane_duplicate_state,
|
|
.atomic_destroy_state = mtk_drm_plane_destroy_state,
|
|
};
|
|
|
|
static int mtk_plane_atomic_check(struct drm_plane *plane,
|
|
struct drm_plane_state *state)
|
|
{
|
|
struct drm_framebuffer *fb = state->fb;
|
|
struct drm_crtc_state *crtc_state;
|
|
int ret;
|
|
|
|
if (!fb)
|
|
return 0;
|
|
|
|
if (WARN_ON(!state->crtc))
|
|
return 0;
|
|
|
|
ret = mtk_drm_crtc_plane_check(state->crtc, plane,
|
|
to_mtk_plane_state(state));
|
|
if (ret)
|
|
return ret;
|
|
|
|
crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
|
|
if (IS_ERR(crtc_state))
|
|
return PTR_ERR(crtc_state);
|
|
|
|
return drm_atomic_helper_check_plane_state(state, crtc_state,
|
|
DRM_PLANE_HELPER_NO_SCALING,
|
|
DRM_PLANE_HELPER_NO_SCALING,
|
|
true, true);
|
|
}
|
|
|
|
static void mtk_plane_atomic_disable(struct drm_plane *plane,
|
|
struct drm_plane_state *old_state)
|
|
{
|
|
struct mtk_plane_state *state = to_mtk_plane_state(plane->state);
|
|
|
|
state->pending.enable = false;
|
|
wmb(); /* Make sure the above parameter is set before update */
|
|
state->pending.dirty = true;
|
|
}
|
|
|
|
static void mtk_plane_atomic_update(struct drm_plane *plane,
|
|
struct drm_plane_state *old_state)
|
|
{
|
|
struct mtk_plane_state *state = to_mtk_plane_state(plane->state);
|
|
struct drm_crtc *crtc = plane->state->crtc;
|
|
struct drm_framebuffer *fb = plane->state->fb;
|
|
struct drm_gem_object *gem;
|
|
struct mtk_drm_gem_obj *mtk_gem;
|
|
unsigned int pitch, format;
|
|
dma_addr_t addr;
|
|
|
|
if (!crtc || WARN_ON(!fb))
|
|
return;
|
|
|
|
if (!plane->state->visible) {
|
|
mtk_plane_atomic_disable(plane, old_state);
|
|
return;
|
|
}
|
|
|
|
gem = fb->obj[0];
|
|
mtk_gem = to_mtk_gem_obj(gem);
|
|
addr = mtk_gem->dma_addr;
|
|
pitch = fb->pitches[0];
|
|
format = fb->format->format;
|
|
|
|
addr += (plane->state->src.x1 >> 16) * fb->format->cpp[0];
|
|
addr += (plane->state->src.y1 >> 16) * pitch;
|
|
|
|
state->pending.enable = true;
|
|
state->pending.pitch = pitch;
|
|
state->pending.format = format;
|
|
state->pending.addr = addr;
|
|
state->pending.x = plane->state->dst.x1;
|
|
state->pending.y = plane->state->dst.y1;
|
|
state->pending.width = drm_rect_width(&plane->state->dst);
|
|
state->pending.height = drm_rect_height(&plane->state->dst);
|
|
state->pending.rotation = plane->state->rotation;
|
|
wmb(); /* Make sure the above parameters are set before update */
|
|
state->pending.dirty = true;
|
|
}
|
|
|
|
static const struct drm_plane_helper_funcs mtk_plane_helper_funcs = {
|
|
.prepare_fb = drm_gem_fb_prepare_fb,
|
|
.atomic_check = mtk_plane_atomic_check,
|
|
.atomic_update = mtk_plane_atomic_update,
|
|
.atomic_disable = mtk_plane_atomic_disable,
|
|
.atomic_async_update = mtk_plane_atomic_async_update,
|
|
.atomic_async_check = mtk_plane_atomic_async_check,
|
|
};
|
|
|
|
int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane,
|
|
unsigned long possible_crtcs, enum drm_plane_type type,
|
|
unsigned int supported_rotations)
|
|
{
|
|
int err;
|
|
|
|
err = drm_universal_plane_init(dev, plane, possible_crtcs,
|
|
&mtk_plane_funcs, formats,
|
|
ARRAY_SIZE(formats), NULL, type, NULL);
|
|
if (err) {
|
|
DRM_ERROR("failed to initialize plane\n");
|
|
return err;
|
|
}
|
|
|
|
if (supported_rotations & ~DRM_MODE_ROTATE_0) {
|
|
err = drm_plane_create_rotation_property(plane,
|
|
DRM_MODE_ROTATE_0,
|
|
supported_rotations);
|
|
if (err)
|
|
DRM_INFO("Create rotation property failed\n");
|
|
}
|
|
|
|
drm_plane_helper_add(plane, &mtk_plane_helper_funcs);
|
|
|
|
return 0;
|
|
}
|