Aaron Liu 29ba7b16b9 drm/amdgpu: check the GART table before invalidating TLB ... Bypass group programming (utcl2_harvest) aims to forbid UTCL2 to send invalidation command to harvested SE/SA. Once invalidation command comes into harvested SE/SA, SE/SA has no response and system hang. This patch is to add checking if the GART table is already allocated before invalidating TLB. The new procedure is as following: 1. Calling amdgpu_gtt_mgr_init() in amdgpu_ttm_init(). After this step GTT BOs can be allocated, but GART mappings are still ignored. 2. Calling amdgpu_gart_table_vram_alloc() from the GMC code. This allocates the GART backing store. 3. Initializing the hardware, and programming the backing store into VMID0 for all VMHUBs. 4. Calling amdgpu_gtt_mgr_recover() to make sure the table is updated with the GTT allocations done before it was allocated. Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Aaron Liu <aaron.liu@amd.com> Acked-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>		2022-02-07 18:01:16 -05:00
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drm	drm/amdgpu: check the GART table before invalidating TLB	2022-02-07 18:01:16 -05:00
host1x	gpu: host1x: Add back arm_iommu_detach_device()	2021-12-16 14:28:51 +01:00
ipu-v3	media: i.MX6: Support 16-bit BT.1120 video input	2021-10-19 08:08:38 +01:00
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