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author | Jani Nikula <jani.nikula@intel.com> | 2021-08-23 15:25:35 +0300 |
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committer | Jani Nikula <jani.nikula@intel.com> | 2021-08-24 20:47:14 +0300 |
commit | 1c8d9adfc3ad7e5472fbed2163897c13ad67620b (patch) | |
tree | c7ee6eeab11e4d470f61e24b2f10e93988207ec2 /drivers/gpu/drm/i915/display/intel_fb.c | |
parent | b8db261187439c42d18036d661a95e68de76550e (diff) | |
download | linux-1c8d9adfc3ad7e5472fbed2163897c13ad67620b.tar.gz linux-1c8d9adfc3ad7e5472fbed2163897c13ad67620b.tar.bz2 linux-1c8d9adfc3ad7e5472fbed2163897c13ad67620b.zip |
drm/i915/fb: move intel_surf_alignment() to intel_fb.c
Split out fb related stuff from intel_display.c to intel_fb.c.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/0b894be3a6acff5fe917b686771a084a6c2aa535.1629721467.git.jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_fb.c')
-rw-r--r-- | drivers/gpu/drm/i915/display/intel_fb.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_fb.c b/drivers/gpu/drm/i915/display/intel_fb.c index 9e722cc1a7fd..e24ee2a28ebf 100644 --- a/drivers/gpu/drm/i915/display/intel_fb.c +++ b/drivers/gpu/drm/i915/display/intel_fb.c @@ -184,6 +184,70 @@ unsigned int intel_cursor_alignment(const struct drm_i915_private *i915) return 4 * 1024; } +static unsigned int intel_linear_alignment(const struct drm_i915_private *dev_priv) +{ + if (DISPLAY_VER(dev_priv) >= 9) + return 256 * 1024; + else if (IS_I965G(dev_priv) || IS_I965GM(dev_priv) || + IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) + return 128 * 1024; + else if (DISPLAY_VER(dev_priv) >= 4) + return 4 * 1024; + else + return 0; +} + +unsigned int intel_surf_alignment(const struct drm_framebuffer *fb, + int color_plane) +{ + struct drm_i915_private *dev_priv = to_i915(fb->dev); + + if (intel_fb_uses_dpt(fb)) + return 512 * 4096; + + /* AUX_DIST needs only 4K alignment */ + if (is_ccs_plane(fb, color_plane)) + return 4096; + + if (is_semiplanar_uv_plane(fb, color_plane)) { + /* + * TODO: cross-check wrt. the bspec stride in bytes * 64 bytes + * alignment for linear UV planes on all platforms. + */ + if (DISPLAY_VER(dev_priv) >= 12) { + if (fb->modifier == DRM_FORMAT_MOD_LINEAR) + return intel_linear_alignment(dev_priv); + + return intel_tile_row_size(fb, color_plane); + } + + return 4096; + } + + drm_WARN_ON(&dev_priv->drm, color_plane != 0); + + switch (fb->modifier) { + case DRM_FORMAT_MOD_LINEAR: + return intel_linear_alignment(dev_priv); + case I915_FORMAT_MOD_X_TILED: + if (HAS_ASYNC_FLIPS(dev_priv)) + return 256 * 1024; + return 0; + case I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS: + case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS: + case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC: + return 16 * 1024; + case I915_FORMAT_MOD_Y_TILED_CCS: + case I915_FORMAT_MOD_Yf_TILED_CCS: + case I915_FORMAT_MOD_Y_TILED: + case I915_FORMAT_MOD_Yf_TILED: + return 1 * 1024 * 1024; + default: + MISSING_CASE(fb->modifier); + return 0; + } +} + void intel_fb_plane_get_subsampling(int *hsub, int *vsub, const struct drm_framebuffer *fb, int color_plane) |