kernel/linux.git/drivers/gpu/drm/ttm, branch v4.15.5

drm/ttm: Fix 'buf' pointer update in ttm_bo_vm_access_kmap() (v2)

2018-02-22T14:40:03+00:00

commit 95244db2d3f743f37e69446a2807dd1a42750542 upstream. The buf pointer was not being incremented inside the loop meaning the same block of data would be read or written repeatedly. (v2) Change 'buf' pointer to uint8_t* type Cc: stable@vger.kernel.org Fixes: 09ac4fcb3f25 ("drm/ttm: Implement vm_operations_struct.access v2") Signed-off-by: Tom St Denis Reviewed-by: Christian König Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

drm/ttm: Don't add swapped BOs to swap-LRU list

2018-02-22T14:40:03+00:00

commit fd5002d6a3c602664b07668a24df4ef7a43bf078 upstream. A BO that's already swapped would be added back to the swap-LRU list for example if its validation failed under high memory pressure. This could later lead to swapping it out again and leaking previous swap storage. This commit adds a condition to prevent that from happening. v2: Check page_flags instead of swap_storage Signed-off-by: Felix Kuehling Reviewed-by: Christian König Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman

drm/ttm: check the return value of kzalloc

2018-01-02T19:54:05+00:00

In the function ttm_page_alloc_init, kzalloc call is made for variable _manager, we need to check its return value, it may return NULL. Signed-off-by: Xiongwei Song Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/ttm: max_cpages is in unit of native page

2017-12-12T20:39:45+00:00

fix calculation. Signed-off-by: Monk Liu Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/ttm: fix incorrect calculate on shrink_pages

2017-12-12T20:39:20+00:00

shrink_pages is in unit of Order after ttm_page_pool_free, but it is used by nr_free in next round so need change it into native page unit Signed-off-by: Monk Liu Reviewed-by: Roger He Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/ttm: swap consecutive allocated pooled pages v4

2017-12-06T14:28:31+00:00

When we detect consecutive allocation of pages swap them to avoid accidentally freeing them as huge page. v2: use swap v3: check if it's really the first allocated page v4: don't touch the loop variable Signed-off-by: Christian König Reviewed-by: Roger He Reviewed-by: Michel Dänzer Tested-by: Dieter Nützel Signed-off-by: Alex Deucher

drm/ttm: swap consecutive allocated cached pages v3

2017-12-05T19:37:06+00:00

When we detect consecutive allocation of pages swap them to avoid accidentally freeing them as huge page. v2: use swap v3: check if it's really the first allocated page Signed-off-by: Christian König Reviewed-by: Roger He Reviewed-by: Michel Dänzer Signed-off-by: Alex Deucher

drm/ttm: roundup the shrink request to prevent skip huge pool

2017-12-05T19:37:06+00:00

e.g. shrink reqeust is less than 512, the logic will skip huge pool Reviewed-by: Chunming Zhou Reviewed-by: Christian König Signed-off-by: Roger He Signed-off-by: Alex Deucher

drm/ttm: add page order support in ttm_pages_put

2017-12-05T19:37:06+00:00

Reviewed-by: Chunming Zhou Reviewed-by: Christian König Signed-off-by: Roger He Signed-off-by: Alex Deucher

drm/ttm: add set_pages_wb for handling page order more than zero

2017-12-05T19:37:05+00:00

Reviewed-by: Chunming Zhou Reviewed-by: Christian König Signed-off-by: Roger He Signed-off-by: Alex Deucher