On Thu, Jul 19, 2018 at 09:22:08PM +0300, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrj...@linux.intel.com>
>
> Move the display w/a #1175 to a better place. That place
> being the new skl+ specific plane->check() hook. This leaves
> the skl_check_plane_surface() stuff to deal with the gtt offset
> and src coordinate stuff as originally envisioned.
>
> Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.v...@intel.com>
> ---
> drivers/gpu/drm/i915/intel_display.c | 36
> +++++-------------------------------
> drivers/gpu/drm/i915/intel_drv.h | 3 +--
> drivers/gpu/drm/i915/intel_sprite.c | 36
> +++++++++++++++++++++++++++++++++++-
> 3 files changed, 41 insertions(+), 34 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index 2381b762d109..dbcc9a23eefa 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -2986,20 +2986,14 @@ static bool skl_check_main_ccs_coordinates(struct
> intel_plane_state *plane_state
> return true;
> }
>
> -static int skl_check_main_surface(const struct intel_crtc_state *crtc_state,
> - struct intel_plane_state *plane_state)
> +static int skl_check_main_surface(struct intel_plane_state *plane_state)
> {
> - struct drm_i915_private *dev_priv =
> - to_i915(plane_state->base.plane->dev);
> const struct drm_framebuffer *fb = plane_state->base.fb;
> unsigned int rotation = plane_state->base.rotation;
> int x = plane_state->base.src.x1 >> 16;
> int y = plane_state->base.src.y1 >> 16;
> int w = drm_rect_width(&plane_state->base.src) >> 16;
> int h = drm_rect_height(&plane_state->base.src) >> 16;
> - int dst_x = plane_state->base.dst.x1;
> - int dst_w = drm_rect_width(&plane_state->base.dst);
> - int pipe_src_w = crtc_state->pipe_src_w;
> int max_width = skl_max_plane_width(fb, 0, rotation);
> int max_height = 4096;
> u32 alignment, offset, aux_offset = plane_state->color_plane[1].offset;
> @@ -3010,24 +3004,6 @@ static int skl_check_main_surface(const struct
> intel_crtc_state *crtc_state,
> return -EINVAL;
> }
>
> - /*
> - * Display WA #1175: cnl,glk
> - * Planes other than the cursor may cause FIFO underflow and display
> - * corruption if starting less than 4 pixels from the right edge of
> - * the screen.
> - * Besides the above WA fix the similar problem, where planes other
> - * than the cursor ending less than 4 pixels from the left edge of the
> - * screen may cause FIFO underflow and display corruption.
> - */
> - if ((IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) &&
> - (dst_x + dst_w < 4 || dst_x > pipe_src_w - 4)) {
> - DRM_DEBUG_KMS("requested plane X %s position %d invalid (valid
> range %d-%d)\n",
> - dst_x + dst_w < 4 ? "end" : "start",
> - dst_x + dst_w < 4 ? dst_x + dst_w : dst_x,
> - 4, pipe_src_w - 4);
> - return -ERANGE;
> - }
> -
> intel_add_fb_offsets(&x, &y, plane_state, 0);
> offset = intel_plane_compute_aligned_offset(&x, &y, plane_state, 0);
> alignment = intel_surf_alignment(fb, 0);
> @@ -3089,8 +3065,7 @@ static int skl_check_main_surface(const struct
> intel_crtc_state *crtc_state,
> }
>
> static int
> -skl_check_nv12_surface(const struct intel_crtc_state *crtc_state,
> - struct intel_plane_state *plane_state)
> +skl_check_nv12_surface(struct intel_plane_state *plane_state)
> {
> /* Display WA #1106 */
> if (plane_state->base.rotation !=
> @@ -3161,8 +3136,7 @@ static int skl_check_ccs_aux_surface(struct
> intel_plane_state *plane_state)
> return 0;
> }
>
> -int skl_check_plane_surface(const struct intel_crtc_state *crtc_state,
> - struct intel_plane_state *plane_state)
> +int skl_check_plane_surface(struct intel_plane_state *plane_state)
> {
> const struct drm_framebuffer *fb = plane_state->base.fb;
> unsigned int rotation = plane_state->base.rotation;
> @@ -3186,7 +3160,7 @@ int skl_check_plane_surface(const struct
> intel_crtc_state *crtc_state,
> * the main surface setup depends on it.
> */
> if (fb->format->format == DRM_FORMAT_NV12) {
> - ret = skl_check_nv12_surface(crtc_state, plane_state);
> + ret = skl_check_nv12_surface(plane_state);
> if (ret)
> return ret;
> ret = skl_check_nv12_aux_surface(plane_state);
> @@ -3203,7 +3177,7 @@ int skl_check_plane_surface(const struct
> intel_crtc_state *crtc_state,
> plane_state->color_plane[1].y = 0;
> }
>
> - ret = skl_check_main_surface(crtc_state, plane_state);
> + ret = skl_check_main_surface(plane_state);
> if (ret)
> return ret;
>
> diff --git a/drivers/gpu/drm/i915/intel_drv.h
> b/drivers/gpu/drm/i915/intel_drv.h
> index 6d57c6a508d4..55f3537ba8f8 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -1651,8 +1651,7 @@ u32 skl_plane_ctl(const struct intel_crtc_state
> *crtc_state,
> u32 glk_color_ctl(const struct intel_plane_state *plane_state);
> u32 skl_plane_stride(const struct intel_plane_state *plane_state,
> int plane);
> -int skl_check_plane_surface(const struct intel_crtc_state *crtc_state,
> - struct intel_plane_state *plane_state);
> +int skl_check_plane_surface(struct intel_plane_state *plane_state);
> int i9xx_check_plane_surface(struct intel_plane_state *plane_state);
> int skl_format_to_fourcc(int format, bool rgb_order, bool alpha);
> unsigned int i9xx_plane_max_stride(struct intel_plane *plane,
> diff --git a/drivers/gpu/drm/i915/intel_sprite.c
> b/drivers/gpu/drm/i915/intel_sprite.c
> index 041b8921f4fe..f43884f76212 100644
> --- a/drivers/gpu/drm/i915/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/intel_sprite.c
> @@ -1218,6 +1218,36 @@ static int skl_plane_check_fb(const struct
> intel_crtc_state *crtc_state,
> return 0;
> }
>
> +static int skl_plane_check_dst_coordinates(const struct intel_crtc_state
> *crtc_state,
> + const struct intel_plane_state
> *plane_state)
> +{
> + struct drm_i915_private *dev_priv =
> + to_i915(plane_state->base.plane->dev);
> + int crtc_x = plane_state->base.dst.x1;
> + int crtc_w = drm_rect_width(&plane_state->base.dst);
> + int pipe_src_w = crtc_state->pipe_src_w;
> +
> + /*
> + * Display WA #1175: cnl,glk
> + * Planes other than the cursor may cause FIFO underflow and display
> + * corruption if starting less than 4 pixels from the right edge of
> + * the screen.
> + * Besides the above WA fix the similar problem, where planes other
> + * than the cursor ending less than 4 pixels from the left edge of the
> + * screen may cause FIFO underflow and display corruption.
> + */
> + if ((IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) &&
> + (crtc_x + crtc_w < 4 || crtc_x > pipe_src_w - 4)) {
> + DRM_DEBUG_KMS("requested plane X %s position %d invalid (valid
> range %d-%d)\n",
> + crtc_x + crtc_w < 4 ? "end" : "start",
> + crtc_x + crtc_w < 4 ? crtc_x + crtc_w : crtc_x,
> + 4, pipe_src_w - 4);
> + return -ERANGE;
> + }
> +
> + return 0;
> +}
> +
> int skl_plane_check(struct intel_crtc_state *crtc_state,
> struct intel_plane_state *plane_state)
> {
> @@ -1252,11 +1282,15 @@ int skl_plane_check(struct intel_crtc_state
> *crtc_state,
> if (!plane_state->base.visible)
> return 0;
>
> + ret = skl_plane_check_dst_coordinates(crtc_state, plane_state);
> + if (ret)
> + return ret;
> +
> ret = intel_plane_check_src_coordinates(plane_state);
> if (ret)
> return ret;
>
> - ret = skl_check_plane_surface(crtc_state, plane_state);
> + ret = skl_check_plane_surface(plane_state);
> if (ret)
> return ret;
>
> --
> 2.16.4
>
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