tree 6db1492d66cd8acef88bacfe95f001e289adc55c
parent 5ebd19f7e166929f292fa68add4fe31e41b340e6
author Yiwei Zhang <zzyiwei@chromium.org> 1624217018 +0000
committer Commit Bot <commit-bot@chromium.org> 1624654955 +0000

minigbm: support GPU_DATA_BUFFER in gralloc virtgpu_virgl backend

VK_ANDROID_external_memory_android_hardware_buffer spec requires gralloc
to support AHARDWAREBUFFER_USAGE_GPU_DATA_BUFFER. This patch adds a new
BO_USE_GPU_DATA_BUFFER flag accordingly and maps the new flag to
VIRGL_BIND_LINEAR, which aligns with the workarounds carried by existing
implementations as well as still going through the blob resource path to
be correctly mappable at the guest side.

BUG=b:191591725
TEST=AHardwareBuffer_allocate with AHARDWAREBUFFER_USAGE_GPU_DATA_BUFFER
TEST=CtsNativeHardwareTestCases
TEST=dEQP-VK.api.external.memory.android_hardware_buffer.*

Change-Id: Ib0d9b1cb90e3b7ff614d556954b6abb9018c92a1
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/2974800
Tested-by: Yiwei Zhang <zzyiwei@chromium.org>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Commit-Queue: Yiwei Zhang <zzyiwei@chromium.org>