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/openbmc/linux/drivers/gpu/drm/i915/ |
H A D | i915_gem_gtt.h | a9da512b Mon Sep 14 13:19:57 CDT 2015 Paulo Zanoni <paulo.r.zanoni@intel.com> drm/i915: avoid the last 8mb of stolen on BDW/SKL
The FBC hardware for these platforms doesn't have access to the bios_reserved range, so it always assumes the maximum (8mb) is used. So avoid this range while allocating.
This solves a bunch of FIFO underruns that happen if you end up putting the CFB in that memory range. On my machine, with 32mb of stolen, I need a 2560x1440 mode for that.
Testcase: igt/kms_frontbuffer_tracking/fbc-* (given the right setup) Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> a9da512b Mon Sep 14 13:19:57 CDT 2015 Paulo Zanoni <paulo.r.zanoni@intel.com> drm/i915: avoid the last 8mb of stolen on BDW/SKL The FBC hardware for these platforms doesn't have access to the bios_reserved range, so it always assumes the maximum (8mb) is used. So avoid this range while allocating. This solves a bunch of FIFO underruns that happen if you end up putting the CFB in that memory range. On my machine, with 32mb of stolen, I need a 2560x1440 mode for that. Testcase: igt/kms_frontbuffer_tracking/fbc-* (given the right setup) Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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H A D | i915_drv.h | a9da512b Mon Sep 14 13:19:57 CDT 2015 Paulo Zanoni <paulo.r.zanoni@intel.com> drm/i915: avoid the last 8mb of stolen on BDW/SKL
The FBC hardware for these platforms doesn't have access to the bios_reserved range, so it always assumes the maximum (8mb) is used. So avoid this range while allocating.
This solves a bunch of FIFO underruns that happen if you end up putting the CFB in that memory range. On my machine, with 32mb of stolen, I need a 2560x1440 mode for that.
Testcase: igt/kms_frontbuffer_tracking/fbc-* (given the right setup) Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> a9da512b Mon Sep 14 13:19:57 CDT 2015 Paulo Zanoni <paulo.r.zanoni@intel.com> drm/i915: avoid the last 8mb of stolen on BDW/SKL The FBC hardware for these platforms doesn't have access to the bios_reserved range, so it always assumes the maximum (8mb) is used. So avoid this range while allocating. This solves a bunch of FIFO underruns that happen if you end up putting the CFB in that memory range. On my machine, with 32mb of stolen, I need a 2560x1440 mode for that. Testcase: igt/kms_frontbuffer_tracking/fbc-* (given the right setup) Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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