From ffafd12696d1a4c8eeb7386d798d75e1fafb4e01 Mon Sep 17 00:00:00 2001
From: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Date: Mon, 7 Oct 2024 21:28:41 +0300
Subject: [PATCH] drm/i915/display: Don't allow tile4 framebuffer to do hflip
on display20 or greater
On display ver 20 onwards tile4 is not supported with horizontal flip
Bspec: 69853
Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Sai Teja Pottumuttu <sai.teja.pottumuttu@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241007182841.2104740-1-juhapekka.heikkila@gmail.com
(cherry picked from commit 73e8e2f9a358caa005ed6e52dcb7fa2bca59d132)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
drivers/gpu/drm/i915/display/intel_fb.c | 13 +++++++++++++
drivers/gpu/drm/i915/display/intel_fb.h | 1 +
drivers/gpu/drm/i915/display/skl_universal_plane.c | 11 +++++++++++
3 files changed, 25 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_fb.c b/drivers/gpu/drm/i915/display/intel_fb.c
index 5be7bb43e2e0d..35557d98d7a70 100644
--- a/drivers/gpu/drm/i915/display/intel_fb.c
+++ b/drivers/gpu/drm/i915/display/intel_fb.c
@@ -438,6 +438,19 @@ bool intel_fb_needs_64k_phys(u64 modifier)
INTEL_PLANE_CAP_NEED64K_PHYS);
}
+/**
+ * intel_fb_is_tile4_modifier: Check if a modifier is a tile4 modifier type
+ * @modifier: Modifier to check
+ *
+ * Returns:
+ * Returns %true if @modifier is a tile4 modifier.
+ */
+bool intel_fb_is_tile4_modifier(u64 modifier)
+{
+ return plane_caps_contain_any(lookup_modifier(modifier)->plane_caps,
+ INTEL_PLANE_CAP_TILING_4);
+}
+
static bool check_modifier_display_ver_range(const struct intel_modifier_desc *md,
u8 display_ver_from, u8 display_ver_until)
{
diff --git a/drivers/gpu/drm/i915/display/intel_fb.h b/drivers/gpu/drm/i915/display/intel_fb.h
index 10de437e8ef84..827be3f7934cb 100644
--- a/drivers/gpu/drm/i915/display/intel_fb.h
+++ b/drivers/gpu/drm/i915/display/intel_fb.h
@@ -35,6 +35,7 @@ bool intel_fb_is_ccs_modifier(u64 modifier);
bool intel_fb_is_rc_ccs_cc_modifier(u64 modifier);
bool intel_fb_is_mc_ccs_modifier(u64 modifier);
bool intel_fb_needs_64k_phys(u64 modifier);
+bool intel_fb_is_tile4_modifier(u64 modifier);
bool intel_fb_is_ccs_aux_plane(const struct drm_framebuffer *fb, int color_plane);
int intel_fb_rc_ccs_cc_plane(const struct drm_framebuffer *fb);
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index 17d4c880ecc40..c8720d31d1013 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -1591,6 +1591,17 @@ static int skl_plane_check_fb(const struct intel_crtc_state *crtc_state,
return -EINVAL;
}
+ /*
+ * Display20 onward tile4 hflip is not supported
+ */
+ if (rotation & DRM_MODE_REFLECT_X &&
+ intel_fb_is_tile4_modifier(fb->modifier) &&
+ DISPLAY_VER(dev_priv) >= 20) {
+ drm_dbg_kms(&dev_priv->drm,
+ "horizontal flip is not supported with tile4 surface formats\n");
+ return -EINVAL;
+ }
+
if (drm_rotation_90_or_270(rotation)) {
if (!intel_fb_supports_90_270_rotation(to_intel_framebuffer(fb))) {
drm_dbg_kms(&dev_priv->drm,
--
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