i915: Add media compression support for Gen-12 with feature flag #191
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From Gen-12 onwards Media compression aux buffer layout has been changed. The functionality to allocate minigbm compressed buffers are mostly taken from CL:3275292 and this CL adapts it to guard this feature behind an environment variable controlled by the minigbm user application (we're not re-using the original CL because it seems the original author is no longer active). BUG=b:201620358 TEST=Play video on Chrome with feature flag enabled for MMC and verify type (7) of buffer modifer in the output of below command: localhost ~ # cat /sys/kernel/debug/dri/0/i915_gem_framebuffer user size: 1280 x 720, depth 0, 8 bpp, modifier 0x100000000000007 Tracked-On: OAM-130084 Change-Id: I69cb527eb9d16498f7e9c2fb32c793cea6b6a4ed Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/4655427 Reviewed-by: Andres Calderon Jaramillo <andrescj@google.com> Commit-Queue: Hang Nguyen <hnt@chromium.org> Tested-by: Hang Nguyen <hnt@chromium.org> Signed-off-by: chenyanxzhu <chenyanx.zhu@intel.com>
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From Gen-12 onwards Media compression aux buffer layout has been changed. The functionality to allocate minigbm compressed buffers are mostly taken from CL:3275292 and this CL adapts it to guard this feature behind an environment variable controlled by the minigbm user application (we're not re-using the original CL because it seems the original author is no longer active).
BUG=b:201620358
TEST=Play video on Chrome with feature flag enabled for MMC and verify type (7) of buffer modifer in the output of below command:
localhost ~ # cat /sys/kernel/debug/dri/0/i915_gem_framebuffer user size: 1280 x 720, depth 0, 8 bpp, modifier 0x100000000000007
Tracked-On: OAM-130084
Change-Id: I69cb527eb9d16498f7e9c2fb32c793cea6b6a4ed
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/4655427
Reviewed-by: Andres Calderon Jaramillo andrescj@google.com
Commit-Queue: Hang Nguyen hnt@chromium.org
Tested-by: Hang Nguyen hnt@chromium.org