On Fri, 2018-03-09 at 17:14 +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>
> Replace the messy framebuffer format/modifier validation code
> with a single call to drm_any_plane_has_format(). The code was
> extremely annoying to maintain as you had to have a lot of platform
> checks for different formats. The new code requires zero maintenance.
>
> v2: Nuke the modifier checks as well since the core does that too now
> v3: Call drm_any_plane_has_format() from the driver code
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Patch looks good to me, but does not apply cleanly now.
> ---
> drivers/gpu/drm/i915/intel_display.c | 90 ++++--------------------
> ------------
> 1 file changed, 8 insertions(+), 82 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index 2933ad38094f..7f06fa83d894 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -13989,7 +13989,6 @@ static int intel_framebuffer_init(struct
> intel_framebuffer *intel_fb,
> {
> struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
> struct drm_framebuffer *fb = &intel_fb->base;
> - struct drm_format_name_buf format_name;
> u32 pitch_limit;
> unsigned int tiling, stride;
> int ret = -EINVAL;
> @@ -14020,33 +14019,14 @@ static int intel_framebuffer_init(struct
> intel_framebuffer *intel_fb,
> }
> }
>
> - /* Passed in modifier sanity checking. */
> - switch (mode_cmd->modifier[0]) {
> - case I915_FORMAT_MOD_Y_TILED_CCS:
> - case I915_FORMAT_MOD_Yf_TILED_CCS:
> - switch (mode_cmd->pixel_format) {
> - case DRM_FORMAT_XBGR8888:
> - case DRM_FORMAT_ABGR8888:
> - case DRM_FORMAT_XRGB8888:
> - case DRM_FORMAT_ARGB8888:
> - break;
> - default:
> - DRM_DEBUG_KMS("RC supported only with RGB8888
> formats\n");
> - goto err;
> - }
> - /* fall through */
> - case I915_FORMAT_MOD_Y_TILED:
> - case I915_FORMAT_MOD_Yf_TILED:
> - if (INTEL_GEN(dev_priv) < 9) {
> - DRM_DEBUG_KMS("Unsupported tiling 0x%llx!\n",
> - mode_cmd->modifier[0]);
> - goto err;
> - }
> - case DRM_FORMAT_MOD_LINEAR:
> - case I915_FORMAT_MOD_X_TILED:
> - break;
> - default:
> - DRM_DEBUG_KMS("Unsupported fb modifier 0x%llx!\n",
> + if (!drm_any_plane_has_format(&dev_priv->drm,
> + mode_cmd->pixel_format,
> + mode_cmd->modifier[0])) {
> + struct drm_format_name_buf format_name;
> +
> + DRM_DEBUG_KMS("unsupported pixel format %s / modifier
> 0x%llx\n",
> + drm_get_format_name(mode_cmd-
> >pixel_format,
> + &format_name),
> mode_cmd->modifier[0]);
> goto err;
> }
> @@ -14081,60 +14061,6 @@ static int intel_framebuffer_init(struct
> intel_framebuffer *intel_fb,
> goto err;
> }
>
> - /* Reject formats not supported by any plane early. */
> - switch (mode_cmd->pixel_format) {
> - case DRM_FORMAT_C8:
> - case DRM_FORMAT_RGB565:
> - case DRM_FORMAT_XRGB8888:
> - case DRM_FORMAT_ARGB8888:
> - break;
> - case DRM_FORMAT_XRGB1555:
> - if (INTEL_GEN(dev_priv) > 3) {
> - DRM_DEBUG_KMS("unsupported pixel format: %s\n",
> - drm_get_format_name(mode_cmd-
> >pixel_format, &format_name));
> - goto err;
> - }
> - break;
> - case DRM_FORMAT_ABGR8888:
> - if (!IS_VALLEYVIEW(dev_priv) &&
> !IS_CHERRYVIEW(dev_priv) &&
> - INTEL_GEN(dev_priv) < 9) {
> - DRM_DEBUG_KMS("unsupported pixel format: %s\n",
> - drm_get_format_name(mode_cmd-
> >pixel_format, &format_name));
> - goto err;
> - }
> - break;
> - case DRM_FORMAT_XBGR8888:
> - case DRM_FORMAT_XRGB2101010:
> - case DRM_FORMAT_XBGR2101010:
> - if (INTEL_GEN(dev_priv) < 4) {
> - DRM_DEBUG_KMS("unsupported pixel format: %s\n",
> - drm_get_format_name(mode_cmd-
> >pixel_format, &format_name));
> - goto err;
> - }
> - break;
> - case DRM_FORMAT_ABGR2101010:
> - if (!IS_VALLEYVIEW(dev_priv) &&
> !IS_CHERRYVIEW(dev_priv)) {
> - DRM_DEBUG_KMS("unsupported pixel format: %s\n",
> - drm_get_format_name(mode_cmd-
> >pixel_format, &format_name));
> - goto err;
> - }
> - break;
> - case DRM_FORMAT_YUYV:
> - case DRM_FORMAT_UYVY:
> - case DRM_FORMAT_YVYU:
> - case DRM_FORMAT_VYUY:
> - if (INTEL_GEN(dev_priv) < 5 && !IS_G4X(dev_priv)) {
> - DRM_DEBUG_KMS("unsupported pixel format: %s\n",
> - drm_get_format_name(mode_cmd-
> >pixel_format, &format_name));
> - goto err;
> - }
> - break;
> - default:
> - DRM_DEBUG_KMS("unsupported pixel format: %s\n",
> - drm_get_format_name(mode_cmd-
> >pixel_format, &format_name));
> - goto err;
> - }
> -
> /* FIXME need to adjust LINOFF/TILEOFF accordingly. */
> if (mode_cmd->offsets[0] != 0)
> goto err;
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