[PATCH 4/9] drm/i915: Use plane->can_async_flip() for alignment exceptions
Ville Syrjala
ville.syrjala at linux.intel.com
Wed Oct 9 18:22:02 UTC 2024
From: Ville Syrjälä <ville.syrjala at linux.intel.com>
Async flips often require bigger alignment that sync flips.
Currently we have HAS_ASYNC_FLIPS() checks strewn about to
inidcate that async flips are generally supported and thus
we want more alignment. Switch that over to using
intel_plane_can_async_flip() so that we can handle these
in a slightly less messy way. Currently we don't have cases
where async flips would require different alignment for
different modifiers on the same plane.
We'll also move the HAS_ASYNC_FLIPS() check to the plane init
code so that we can still use that as a quick way to disable
the async flips workarounds for testing purposes.
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
drivers/gpu/drm/i915/display/i9xx_plane.c | 55 +++++++++----------
.../drm/i915/display/skl_universal_plane.c | 21 ++++---
2 files changed, 37 insertions(+), 39 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/i9xx_plane.c b/drivers/gpu/drm/i915/display/i9xx_plane.c
index 7455da863a26..8d3346199645 100644
--- a/drivers/gpu/drm/i915/display/i9xx_plane.c
+++ b/drivers/gpu/drm/i915/display/i9xx_plane.c
@@ -779,12 +779,11 @@ static unsigned int vlv_primary_min_alignment(struct intel_plane *plane,
const struct drm_framebuffer *fb,
int color_plane)
{
- struct drm_i915_private *i915 = to_i915(plane->base.dev);
+ if (intel_plane_can_async_flip(plane, fb->modifier))
+ return 256 * 1024;
switch (fb->modifier) {
case I915_FORMAT_MOD_X_TILED:
- if (HAS_ASYNC_FLIPS(i915))
- return 256 * 1024;
return 4 * 1024;
case DRM_FORMAT_MOD_LINEAR:
return 128 * 1024;
@@ -798,13 +797,11 @@ static unsigned int g4x_primary_min_alignment(struct intel_plane *plane,
const struct drm_framebuffer *fb,
int color_plane)
{
- struct drm_i915_private *i915 = to_i915(plane->base.dev);
+ if (intel_plane_can_async_flip(plane, fb->modifier))
+ return 256 * 1024;
switch (fb->modifier) {
case I915_FORMAT_MOD_X_TILED:
- if (HAS_ASYNC_FLIPS(i915))
- return 256 * 1024;
- return 4 * 1024;
case DRM_FORMAT_MOD_LINEAR:
return 4 * 1024;
default:
@@ -959,27 +956,29 @@ 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;
- if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
- plane->async_flip = vlv_primary_async_flip;
- plane->enable_flip_done = vlv_primary_enable_flip_done;
- plane->disable_flip_done = vlv_primary_disable_flip_done;
- plane->can_async_flip = i9xx_plane_can_async_flip;
- } else if (IS_BROADWELL(dev_priv)) {
- plane->need_async_flip_toggle_wa = true;
- plane->async_flip = g4x_primary_async_flip;
- plane->enable_flip_done = bdw_primary_enable_flip_done;
- plane->disable_flip_done = bdw_primary_disable_flip_done;
- plane->can_async_flip = i9xx_plane_can_async_flip;
- } else if (DISPLAY_VER(dev_priv) >= 7) {
- plane->async_flip = g4x_primary_async_flip;
- plane->enable_flip_done = ivb_primary_enable_flip_done;
- plane->disable_flip_done = ivb_primary_disable_flip_done;
- plane->can_async_flip = i9xx_plane_can_async_flip;
- } else if (DISPLAY_VER(dev_priv) >= 5) {
- plane->async_flip = g4x_primary_async_flip;
- plane->enable_flip_done = ilk_primary_enable_flip_done;
- plane->disable_flip_done = ilk_primary_disable_flip_done;
- plane->can_async_flip = i9xx_plane_can_async_flip;
+ if (HAS_ASYNC_FLIPS(dev_priv)) {
+ if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
+ plane->async_flip = vlv_primary_async_flip;
+ plane->enable_flip_done = vlv_primary_enable_flip_done;
+ plane->disable_flip_done = vlv_primary_disable_flip_done;
+ plane->can_async_flip = i9xx_plane_can_async_flip;
+ } else if (IS_BROADWELL(dev_priv)) {
+ plane->need_async_flip_toggle_wa = true;
+ plane->async_flip = g4x_primary_async_flip;
+ plane->enable_flip_done = bdw_primary_enable_flip_done;
+ plane->disable_flip_done = bdw_primary_disable_flip_done;
+ plane->can_async_flip = i9xx_plane_can_async_flip;
+ } else if (DISPLAY_VER(dev_priv) >= 7) {
+ plane->async_flip = g4x_primary_async_flip;
+ plane->enable_flip_done = ivb_primary_enable_flip_done;
+ plane->disable_flip_done = ivb_primary_disable_flip_done;
+ plane->can_async_flip = i9xx_plane_can_async_flip;
+ } else if (DISPLAY_VER(dev_priv) >= 5) {
+ plane->async_flip = g4x_primary_async_flip;
+ plane->enable_flip_done = ilk_primary_enable_flip_done;
+ plane->disable_flip_done = ilk_primary_disable_flip_done;
+ plane->can_async_flip = i9xx_plane_can_async_flip;
+ }
}
modifiers = intel_fb_plane_get_modifiers(dev_priv, INTEL_PLANE_CAP_TILING_X);
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index ca82cc55802e..ea72c54e8329 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -589,25 +589,24 @@ static u32 tgl_plane_min_alignment(struct intel_plane *plane,
if (intel_fb_is_ccs_aux_plane(fb, color_plane))
return mult * 4 * 1024;
+ /*
+ * FIXME ADL sees GGTT/DMAR faults with async
+ * flips unless we align to 16k at least.
+ * Figure out what's going on here...
+ */
+ if (IS_ALDERLAKE_P(i915) &&
+ intel_plane_can_async_flip(plane, fb->modifier))
+ return mult * 16 * 1024;
+
switch (fb->modifier) {
case DRM_FORMAT_MOD_LINEAR:
case I915_FORMAT_MOD_X_TILED:
case I915_FORMAT_MOD_Y_TILED:
case I915_FORMAT_MOD_4_TILED:
- /*
- * FIXME ADL sees GGTT/DMAR faults with async
- * flips unless we align to 16k at least.
- * Figure out what's going on here...
- */
- if (IS_ALDERLAKE_P(i915) && HAS_ASYNC_FLIPS(i915))
- return mult * 16 * 1024;
return mult * 4 * 1024;
case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
case I915_FORMAT_MOD_4_TILED_MTL_RC_CCS:
case I915_FORMAT_MOD_4_TILED_DG2_RC_CCS:
- if (IS_ALDERLAKE_P(i915) && HAS_ASYNC_FLIPS(i915))
- return mult * 16 * 1024;
- fallthrough;
case I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS:
case I915_FORMAT_MOD_4_TILED_MTL_MC_CCS:
case I915_FORMAT_MOD_4_TILED_DG2_MC_CCS:
@@ -2689,7 +2688,7 @@ skl_universal_plane_create(struct drm_i915_private *dev_priv,
plane->get_hw_state = skl_plane_get_hw_state;
plane->check_plane = skl_plane_check;
- if (plane_id == PLANE_1) {
+ if (HAS_ASYNC_FLIPS(dev_priv) && plane_id == PLANE_1) {
plane->need_async_flip_toggle_wa = IS_DISPLAY_VER(dev_priv, 9, 10);
plane->async_flip = skl_plane_async_flip;
plane->enable_flip_done = skl_plane_enable_flip_done;
--
2.45.2
More information about the Intel-gfx
mailing list