On Wed, Feb 26, 2020 at 10:05:17PM +0530, Anshuman Gupta wrote:
> As a disabled pipe in pipe_mask is not having a valid intel crtc,
> driver wrongly populates the possible_crtcs mask while initializing
> the plane for a CRTC. Fixing up the plane possible_crtcs mask.
>
> changes since RFC:
> - Simplify the possible_crtcs initialization. [Ville]
> v2:
> - Removed the unnecessary stack garbage possible_crtcs to
> drm_universal_plane_init. [Ville]
> v3:
> - Combine the intel_crtc assignment and declaration. [Ville]
> v4:
> - Fix possible_crtcs abused bits from
> intel_{primary,curosr,sprite}_plane_create(). [Ville]
>
> Cc: Ville Syrjälä <[email protected]>
> Signed-off-by: Anshuman Gupta <[email protected]>
Thanks. Pushed to dinq.
> ---
> drivers/gpu/drm/i915/display/intel_display.c | 25 +++++++++++++-------
> drivers/gpu/drm/i915/display/intel_sprite.c | 10 ++------
> 2 files changed, 18 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c
> b/drivers/gpu/drm/i915/display/intel_display.c
> index aacbdc47fcea..071fda408116 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -16329,7 +16329,6 @@ intel_primary_plane_create(struct drm_i915_private
> *dev_priv, enum pipe pipe)
> struct intel_plane *plane;
> const struct drm_plane_funcs *plane_funcs;
> unsigned int supported_rotations;
> - unsigned int possible_crtcs;
> const u32 *formats;
> int num_formats;
> int ret, zpos;
> @@ -16410,18 +16409,16 @@ intel_primary_plane_create(struct drm_i915_private
> *dev_priv, enum pipe pipe)
> plane->get_hw_state = i9xx_plane_get_hw_state;
> plane->check_plane = i9xx_plane_check;
>
> - possible_crtcs = BIT(pipe);
> -
> if (INTEL_GEN(dev_priv) >= 5 || IS_G4X(dev_priv))
> ret = drm_universal_plane_init(&dev_priv->drm, &plane->base,
> - possible_crtcs, plane_funcs,
> + 0, plane_funcs,
> formats, num_formats,
> i9xx_format_modifiers,
> DRM_PLANE_TYPE_PRIMARY,
> "primary %c", pipe_name(pipe));
> else
> ret = drm_universal_plane_init(&dev_priv->drm, &plane->base,
> - possible_crtcs, plane_funcs,
> + 0, plane_funcs,
> formats, num_formats,
> i9xx_format_modifiers,
> DRM_PLANE_TYPE_PRIMARY,
> @@ -16463,7 +16460,6 @@ static struct intel_plane *
> intel_cursor_plane_create(struct drm_i915_private *dev_priv,
> enum pipe pipe)
> {
> - unsigned int possible_crtcs;
> struct intel_plane *cursor;
> int ret, zpos;
>
> @@ -16496,10 +16492,8 @@ intel_cursor_plane_create(struct drm_i915_private
> *dev_priv,
> if (IS_I845G(dev_priv) || IS_I865G(dev_priv) || HAS_CUR_FBC(dev_priv))
> cursor->cursor.size = ~0;
>
> - possible_crtcs = BIT(pipe);
> -
> ret = drm_universal_plane_init(&dev_priv->drm, &cursor->base,
> - possible_crtcs,
> &intel_cursor_plane_funcs,
> + 0, &intel_cursor_plane_funcs,
> intel_cursor_formats,
> ARRAY_SIZE(intel_cursor_formats),
> cursor_format_modifiers,
> @@ -16628,6 +16622,18 @@ static void intel_crtc_free(struct intel_crtc *crtc)
> kfree(crtc);
> }
>
> +static void intel_plane_possible_crtcs_init(struct drm_i915_private
> *dev_priv)
> +{
> + struct intel_plane *plane;
> +
> + for_each_intel_plane(&dev_priv->drm, plane) {
> + struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv,
> + plane->pipe);
> +
> + plane->base.possible_crtcs = drm_crtc_mask(&crtc->base);
> + }
> +}
> +
> static int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe)
> {
> struct intel_plane *primary, *cursor;
> @@ -17843,6 +17849,7 @@ int intel_modeset_init(struct drm_i915_private *i915)
> }
> }
>
> + intel_plane_possible_crtcs_init(i915);
> intel_shared_dpll_init(dev);
> intel_update_fdi_pll_freq(i915);
>
> diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c
> b/drivers/gpu/drm/i915/display/intel_sprite.c
> index 7abeefe8dce5..53bb65666587 100644
> --- a/drivers/gpu/drm/i915/display/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/display/intel_sprite.c
> @@ -3011,7 +3011,6 @@ skl_universal_plane_create(struct drm_i915_private
> *dev_priv,
> struct intel_plane *plane;
> enum drm_plane_type plane_type;
> unsigned int supported_rotations;
> - unsigned int possible_crtcs;
> const u64 *modifiers;
> const u32 *formats;
> int num_formats;
> @@ -3066,10 +3065,8 @@ skl_universal_plane_create(struct drm_i915_private
> *dev_priv,
> else
> plane_type = DRM_PLANE_TYPE_OVERLAY;
>
> - possible_crtcs = BIT(pipe);
> -
> ret = drm_universal_plane_init(&dev_priv->drm, &plane->base,
> - possible_crtcs, plane_funcs,
> + 0, plane_funcs,
> formats, num_formats, modifiers,
> plane_type,
> "plane %d%c", plane_id + 1,
> @@ -3120,7 +3117,6 @@ intel_sprite_plane_create(struct drm_i915_private
> *dev_priv,
> {
> struct intel_plane *plane;
> const struct drm_plane_funcs *plane_funcs;
> - unsigned long possible_crtcs;
> unsigned int supported_rotations;
> const u64 *modifiers;
> const u32 *formats;
> @@ -3205,10 +3201,8 @@ intel_sprite_plane_create(struct drm_i915_private
> *dev_priv,
> plane->id = PLANE_SPRITE0 + sprite;
> plane->frontbuffer_bit = INTEL_FRONTBUFFER(pipe, plane->id);
>
> - possible_crtcs = BIT(pipe);
> -
> ret = drm_universal_plane_init(&dev_priv->drm, &plane->base,
> - possible_crtcs, plane_funcs,
> + 0, plane_funcs,
> formats, num_formats, modifiers,
> DRM_PLANE_TYPE_OVERLAY,
> "sprite %c", sprite_name(pipe, sprite));
> --
> 2.24.0
--
Ville Syrjälä
Intel
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