minigbm: Add AMDGPU minigbm driver
Add a minigbm driver to support the AMDGPU drm.
BUG=chrome-os-partner:56076
TEST=emerge-jadeite minigbm and test UI
Change-Id: I395bba57998d95074bd13a379d62d6bec888154b
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Reviewed-on: https://chromium-review.googlesource.com/368101
Tested-by: Dominik Behr <dbehr@chromium.org>
Reviewed-by: Dominik Behr <dbehr@chromium.org>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
diff --git a/helpers.h b/helpers.h
index e9fc9d7..ae199ff 100644
--- a/helpers.h
+++ b/helpers.h
@@ -26,4 +26,5 @@
void drv_decrement_reference_count(struct driver *drv, struct bo *bo,
size_t plane);
uint32_t drv_num_buffers_per_bo(struct bo *bo);
+uint32_t drv_log_base2(uint32_t value);
#endif