diff options
| author | Imre Deak <imre.deak@intel.com> | 2019-12-21 14:05:40 +0200 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2019-12-23 13:51:00 +0200 |
| commit | 71df86f0fbf5046a68a2adaaba98feee2f6e22d1 (patch) | |
| tree | c03c9380143f0ce5ed01e27096e29327ac5482f8 /drivers/gpu/drm/i915/display/intel_display.c | |
| parent | b3e57bccd68a166f1a0e40e482b5645af15525b4 (diff) | |
drm/i915/tgl: Make sure FBs have a correct CCS plane stride
The CCS plane stride must be fixed on TGL, as it's not configurable for
the display. Instead the HW has a hardwired logic to determine it from
the main plane stride. Make sure userspace passes in the correct stride.
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191221120543.22816-8-imre.deak@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index ae2858931c9d..7e55829736bb 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -2621,6 +2621,12 @@ bool is_ccs_modifier(u64 modifier) modifier == I915_FORMAT_MOD_Yf_TILED_CCS; } +static int gen12_ccs_aux_stride(struct drm_framebuffer *fb, int ccs_plane) +{ + return DIV_ROUND_UP(fb->pitches[ccs_to_main_plane(fb, ccs_plane)], + 512) * 64; +} + u32 intel_plane_fb_max_stride(struct drm_i915_private *dev_priv, u32 pixel_format, u64 modifier) { @@ -16550,6 +16556,17 @@ static int intel_framebuffer_init(struct intel_framebuffer *intel_fb, goto err; } + if (is_gen12_ccs_plane(fb, i)) { + int ccs_aux_stride = gen12_ccs_aux_stride(fb, i); + + if (fb->pitches[i] != ccs_aux_stride) { + DRM_DEBUG_KMS("ccs aux plane %d pitch (%d) must be %d\n", + i, + fb->pitches[i], ccs_aux_stride); + goto err; + } + } + fb->obj[i] = &obj->base; } |