kernel/linux.git/drivers/gpu/drm/ttm, branch v5.1.16

drm/ttm: fix re-init of global structures

2019-04-19T16:11:20+00:00

When a driver unloads without unloading TTM we don't correctly clear the global structures leading to errors on re-init. Next step should probably be to remove the global structures and kobjs all together, but this is tricky since we need to maintain backward compatibility. Signed-off-by: Christian König Reviewed-by: Karol Herbst Tested-by: Karol Herbst CC: stable@vger.kernel.org # 5.0.x Signed-off-by: Alex Deucher

drm/ttm: fix dma_fence refcount imbalance on error path

2019-04-11T15:02:21+00:00

the ttm_bo_add_move_fence takes a reference to the struct dma_fence, but failed to release it on the error path, leading to a memory leak. add dma_fence_put before return when error occur. Signed-off-by: Lin Yi Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/ttm: fix incrementing the page pointer for huge pages

2019-04-11T15:01:51+00:00

When we increment the counter we need to increment the pointer as well. Signed-off-by: Christian König Fixes: e16858a7e6e7 drm/ttm: fix start page for huge page check in ttm_put_pages() Reviewed-by: Michel Dänzer Acked-by: Huang Rui Signed-off-by: Alex Deucher

drm/ttm: fix start page for huge page check in ttm_put_pages()

2019-04-11T15:01:23+00:00

The first page entry is always the same with itself. Signed-off-by: Christian König Reviewed-by: Michel Dänzer Reviewed-by: Junwei Zhang Reviewed-by: Huang Rui Signed-off-by: Alex Deucher

drm/ttm: fix out-of-bounds read in ttm_put_pages() v2

2019-04-11T15:01:23+00:00

When ttm_put_pages() tries to figure out whether it's dealing with transparent hugepages, it just reads past the bounds of the pages array without a check. v2: simplify the test if enough pages are left in the array (Christian). Signed-off-by: Jann Horn Signed-off-by: Christian König Fixes: 5c42c64f7d54 ("drm/ttm: fix the fix for huge compound pages") Cc: stable@vger.kernel.org Reviewed-by: Michel Dänzer Reviewed-by: Junwei Zhang Reviewed-by: Huang Rui Signed-off-by: Alex Deucher

drm/ttm: Remove ttm_bo_reference and ttm_bo_unref

2019-01-28T16:43:38+00:00

Both functions are obsolete and all calls have been replaced by ttm_bo_get and ttm_bo_put. Signed-off-by: Thomas Zimmermann Reviewed-by: Christian König Reviewed-by: Huang Rui Signed-off-by: Alex Deucher

drm/ttm: stop always moving BOs on the LRU on page fault

2019-01-25T21:15:34+00:00

Move the BO on the LRU only when it is actually moved by a DMA operation. Signed-off-by: Christian König Reviewed-by: Michel Dänzer Tested-And-Reviewed-by: Chunming Zhou Signed-off-by: Alex Deucher

drm/ttm: add lru notify to bo driver v2

2019-01-25T21:15:34+00:00

allow driver do somethings when lru changed. v2: address Michel's comments. Signed-off-by: Chunming Zhou Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/ttm: Use drm_debug_printer for all ttm_bo_mem_space_debug output

2018-12-21T20:27:58+00:00

No need for pr_err here, the pr_err message in ttm_bo_evict is enough to draw attention to something not going as planned. Reviewed-by: Christian König Reviewed-by: Junwei Zhang Signed-off-by: Michel Dänzer Signed-off-by: Alex Deucher

drm/ttm: allow reserving more than one shared slot v3

2018-12-07T22:53:44+00:00

Let's support simultaneous submissions to multiple engines. v2: rename the field to num_shared and fix up all users v3: rebased Signed-off-by: Christian König Reviewed-by: Michel Dänzer Reviewed-by: Junwei Zhang Reviewed-by: Huang Rui Signed-off-by: Alex Deucher