From: Thierry Reding Date: Fri, 28 Nov 2014 12:14:55 +0000 (+0100) Subject: drm/tegra: Track tiling and format in plane state X-Git-Tag: firefly_0821_release~176^2~2312^2~25^2~3 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8f604f8c4dd2d5383f567856450ba12764061c12;p=firefly-linux-kernel-4.4.55.git drm/tegra: Track tiling and format in plane state Tracking these in the plane state allows them to be computed in the ->atomic_check() callback and reused when applying the configuration in ->atomic_update(). Signed-off-by: Thierry Reding --- diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index 4073a7b5bf26..0cceabd11798 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -59,6 +59,23 @@ static inline struct tegra_dc_state *to_dc_state(struct drm_crtc_state *state) return NULL; } +struct tegra_plane_state { + struct drm_plane_state base; + + struct tegra_bo_tiling tiling; + u32 format; + u32 swap; +}; + +static inline struct tegra_plane_state * +to_tegra_plane_state(struct drm_plane_state *state) +{ + if (state) + return container_of(state, struct tegra_plane_state, base); + + return NULL; +} + /* * Reads the active copy of a register. This takes the dc->lock spinlock to * prevent races with the VBLANK processing which also needs access to the @@ -97,43 +114,49 @@ void tegra_dc_commit(struct tegra_dc *dc) tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL); } -static unsigned int tegra_dc_format(uint32_t format, uint32_t *swap) +static int tegra_dc_format(u32 fourcc, u32 *format, u32 *swap) { /* assume no swapping of fetched data */ if (swap) *swap = BYTE_SWAP_NOSWAP; - switch (format) { + switch (fourcc) { case DRM_FORMAT_XBGR8888: - return WIN_COLOR_DEPTH_R8G8B8A8; + *format = WIN_COLOR_DEPTH_R8G8B8A8; + break; case DRM_FORMAT_XRGB8888: - return WIN_COLOR_DEPTH_B8G8R8A8; + *format = WIN_COLOR_DEPTH_B8G8R8A8; + break; case DRM_FORMAT_RGB565: - return WIN_COLOR_DEPTH_B5G6R5; + *format = WIN_COLOR_DEPTH_B5G6R5; + break; case DRM_FORMAT_UYVY: - return WIN_COLOR_DEPTH_YCbCr422; + *format = WIN_COLOR_DEPTH_YCbCr422; + break; case DRM_FORMAT_YUYV: if (swap) *swap = BYTE_SWAP_SWAP2; - return WIN_COLOR_DEPTH_YCbCr422; + *format = WIN_COLOR_DEPTH_YCbCr422; + break; case DRM_FORMAT_YUV420: - return WIN_COLOR_DEPTH_YCbCr420P; + *format = WIN_COLOR_DEPTH_YCbCr420P; + break; case DRM_FORMAT_YUV422: - return WIN_COLOR_DEPTH_YCbCr422P; + *format = WIN_COLOR_DEPTH_YCbCr422P; + break; default: - break; + return -EINVAL; } - WARN(1, "unsupported pixel format %u, using default\n", format); - return WIN_COLOR_DEPTH_B8G8R8A8; + return 0; } static bool tegra_dc_format_is_yuv(unsigned int format, bool *planar) @@ -398,13 +421,54 @@ static void tegra_primary_plane_destroy(struct drm_plane *plane) tegra_plane_destroy(plane); } +static void tegra_plane_reset(struct drm_plane *plane) +{ + struct tegra_plane_state *state; + + if (plane->state && plane->state->fb) + drm_framebuffer_unreference(plane->state->fb); + + kfree(plane->state); + plane->state = NULL; + + state = kzalloc(sizeof(*state), GFP_KERNEL); + if (state) { + plane->state = &state->base; + plane->state->plane = plane; + } +} + +static struct drm_plane_state *tegra_plane_atomic_duplicate_state(struct drm_plane *plane) +{ + struct tegra_plane_state *state = to_tegra_plane_state(plane->state); + struct tegra_plane_state *copy; + + copy = kmemdup(state, sizeof(*state), GFP_KERNEL); + if (!copy) + return NULL; + + if (copy->base.fb) + drm_framebuffer_reference(copy->base.fb); + + return ©->base; +} + +static void tegra_plane_atomic_destroy_state(struct drm_plane *plane, + struct drm_plane_state *state) +{ + if (state->fb) + drm_framebuffer_unreference(state->fb); + + kfree(state); +} + static const struct drm_plane_funcs tegra_primary_plane_funcs = { .update_plane = drm_atomic_helper_update_plane, .disable_plane = drm_atomic_helper_disable_plane, .destroy = tegra_primary_plane_destroy, - .reset = drm_atomic_helper_plane_reset, - .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, - .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, + .reset = tegra_plane_reset, + .atomic_duplicate_state = tegra_plane_atomic_duplicate_state, + .atomic_destroy_state = tegra_plane_atomic_destroy_state, }; static int tegra_plane_prepare_fb(struct drm_plane *plane, @@ -439,20 +503,26 @@ static int tegra_plane_state_add(struct tegra_plane *plane, static int tegra_plane_atomic_check(struct drm_plane *plane, struct drm_plane_state *state) { + struct tegra_plane_state *plane_state = to_tegra_plane_state(state); + struct tegra_bo_tiling *tiling = &plane_state->tiling; struct tegra_plane *tegra = to_tegra_plane(plane); struct tegra_dc *dc = to_tegra_dc(state->crtc); - struct tegra_bo_tiling tiling; int err; /* no need for further checks if the plane is being disabled */ if (!state->crtc) return 0; - err = tegra_fb_get_tiling(state->fb, &tiling); + err = tegra_dc_format(state->fb->pixel_format, &plane_state->format, + &plane_state->swap); + if (err < 0) + return err; + + err = tegra_fb_get_tiling(state->fb, tiling); if (err < 0) return err; - if (tiling.mode == TEGRA_BO_TILING_MODE_BLOCK && + if (tiling->mode == TEGRA_BO_TILING_MODE_BLOCK && !dc->soc->supports_block_linear) { DRM_ERROR("hardware doesn't support block linear mode\n"); return -EINVAL; @@ -480,12 +550,12 @@ static int tegra_plane_atomic_check(struct drm_plane *plane, static void tegra_plane_atomic_update(struct drm_plane *plane, struct drm_plane_state *old_state) { + struct tegra_plane_state *state = to_tegra_plane_state(plane->state); struct tegra_dc *dc = to_tegra_dc(plane->state->crtc); struct drm_framebuffer *fb = plane->state->fb; struct tegra_plane *p = to_tegra_plane(plane); struct tegra_dc_window window; unsigned int i; - int err; /* rien ne va plus */ if (!plane->state->crtc || !plane->state->fb) @@ -500,12 +570,13 @@ static void tegra_plane_atomic_update(struct drm_plane *plane, window.dst.y = plane->state->crtc_y; window.dst.w = plane->state->crtc_w; window.dst.h = plane->state->crtc_h; - window.format = tegra_dc_format(fb->pixel_format, &window.swap); window.bits_per_pixel = fb->bits_per_pixel; window.bottom_up = tegra_fb_is_bottom_up(fb); - err = tegra_fb_get_tiling(fb, &window.tiling); - WARN_ON(err < 0); + /* copy from state */ + window.tiling = state->tiling; + window.format = state->format; + window.swap = state->swap; for (i = 0; i < drm_format_num_planes(fb->pixel_format); i++) { struct tegra_bo *bo = tegra_fb_get_plane(fb, i); @@ -710,9 +781,9 @@ static const struct drm_plane_funcs tegra_cursor_plane_funcs = { .update_plane = drm_atomic_helper_update_plane, .disable_plane = drm_atomic_helper_disable_plane, .destroy = tegra_plane_destroy, - .reset = drm_atomic_helper_plane_reset, - .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, - .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, + .reset = tegra_plane_reset, + .atomic_duplicate_state = tegra_plane_atomic_duplicate_state, + .atomic_destroy_state = tegra_plane_atomic_destroy_state, }; static const struct drm_plane_helper_funcs tegra_cursor_plane_helper_funcs = { @@ -767,9 +838,9 @@ static const struct drm_plane_funcs tegra_overlay_plane_funcs = { .update_plane = drm_atomic_helper_update_plane, .disable_plane = drm_atomic_helper_disable_plane, .destroy = tegra_overlay_plane_destroy, - .reset = drm_atomic_helper_plane_reset, - .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, - .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, + .reset = tegra_plane_reset, + .atomic_duplicate_state = tegra_plane_atomic_duplicate_state, + .atomic_destroy_state = tegra_plane_atomic_destroy_state, }; static const uint32_t tegra_overlay_plane_formats[] = { diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h index b1c7027b26e7..8cb2dfeaa957 100644 --- a/drivers/gpu/drm/tegra/drm.h +++ b/drivers/gpu/drm/tegra/drm.h @@ -170,13 +170,13 @@ struct tegra_dc_window { unsigned int h; } dst; unsigned int bits_per_pixel; - unsigned int format; - unsigned int swap; unsigned int stride[2]; unsigned long base[3]; bool bottom_up; struct tegra_bo_tiling tiling; + u32 format; + u32 swap; }; /* from dc.c */