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drm/amdgpu/gfx9: cache DB_DEBUG2 and make it available to userspace

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Userspace needs to query this value to work around a hw bug in
certain cases.

Acked-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2018-04-10 10:15:26 -05:00
parent 5452cf44d6
commit 5eeae247d2
3 changed files with 6 additions and 0 deletions
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drivers/gpu/drm/amd/amdgpu/amdgpu.h
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@@ -867,6 +867,8 @@ struct amdgpu_gfx_config {
/* gfx configure feature */
uint32_t double_offchip_lds_buf;
/* cached value of DB_DEBUG2 */
uint32_t db_debug2;
};
struct amdgpu_cu_info {