diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2021-01-11 18:37:08 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2021-01-29 19:00:34 +0200 |
| commit | cda195f13abd77fe024bbe1a2cb9ac99b9915270 (patch) | |
| tree | 598bbd5bccc92b256b56789f0d11ba69e8e0981a /drivers/gpu/drm/i915/display/intel_display.c | |
| parent | cb807055497c39bd657da9288ebdf07b81fc8d69 (diff) | |
drm/i915: Implement async flips for bdw
Implement async flip support for BDW. The implementation is
similar to the skl+ code. And just like skl/bxt/glk bdw also
needs the disable w/a, thus we need to plumb the desired state
of the async flip all the way down to i9xx_plane_ctl_crtc().
According to the spec we do need to bump the surface alignment
to 256KiB for this. Async flips require an X-tiled buffer so
we don't have to worry about linear.
Cc: Karthik B S <karthik.b.s@intel.com>
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210111163711.12913-9-ville.syrjala@linux.intel.com
Reviewed-by: Karthik B S <karthik.b.s@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 2c7931b1cf0d8..ee04bd6fc3b6d 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -1317,6 +1317,11 @@ static unsigned int intel_linear_alignment(const struct drm_i915_private *dev_pr return 0; } +static bool has_async_flips(struct drm_i915_private *i915) +{ + return INTEL_GEN(i915) >= 9 || IS_BROADWELL(i915); +} + static unsigned int intel_surf_alignment(const struct drm_framebuffer *fb, int color_plane) { @@ -1331,7 +1336,7 @@ static unsigned int intel_surf_alignment(const struct drm_framebuffer *fb, case DRM_FORMAT_MOD_LINEAR: return intel_linear_alignment(dev_priv); case I915_FORMAT_MOD_X_TILED: - if (INTEL_GEN(dev_priv) >= 9) + if (has_async_flips(dev_priv)) return 256 * 1024; return 0; case I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS: @@ -14784,8 +14789,7 @@ static void intel_mode_config_init(struct drm_i915_private *i915) mode_config->funcs = &intel_mode_funcs; - if (INTEL_GEN(i915) >= 9) - mode_config->async_page_flip = true; + mode_config->async_page_flip = has_async_flips(i915); /* * Maximum framebuffer dimensions, chosen to match |