kernel/drivers/gpu/drm/ttm/ttm_memory.c, branch linux-4.17.y

drm/ttm: check if free mem space is under the lower limit

2018-02-27T04:09:46Z

the free mem space and the lower limit both include two parts: system memory and swap space. For the OOM triggered by TTM, that is the case as below: first swap space is full of swapped out pages and soon system memory also is filled up with ttm pages. and then any memory allocation request will run into OOM. to cover two cases: a. if no swap disk at all or free swap space is under swap mem limit but available system mem is bigger than sys mem limit, allow TTM allocation; b. if the available system mem is less than sys mem limit but free swap space is bigger than swap mem limit, allow TTM allocation. v2: merge two memory limit(swap and system) into one v3: keep original behavior except ttm_opt_ctx->flags with TTM_OPT_FLAG_FORCE_ALLOC v4: always set force_alloc as tx->flags & TTM_OPT_FLAG_FORCE_ALLOC v5: add an attribute for lower_mem_limit v6: set lower_mem_limit as 0 to keep original behavior Signed-off-by: Roger He Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/ttm: enable swapout for reserved BOs during allocation

2017-12-28T14:48:20Z

if the bo shares same reservation object then not lock it again at swapout time to make it possible to swap out. v2: refine the commmit message Reviewed-by: Thomas Hellström Reviewed-by: Christian König Reviewed-by: Chuming Zhou Signed-off-by: Roger He Signed-off-by: Alex Deucher

drm/ttm: use an operation ctx for ttm_mem_global_alloc_page

2017-12-27T16:38:55Z

forward the operation context to ttm_mem_global_alloc_page as well, and the ultimate goal is swapout enablement for reserved BOs. Here reserved BOs refer to all the BOs which share same reservation object Reviewed-by: Christian König Signed-off-by: Roger He Signed-off-by: Alex Deucher

drm/ttm: use an operation ctx for ttm_mem_global_alloc

2017-12-27T16:38:54Z

forward the operation context to ttm_mem_global_alloc as well, and the ultimate goal is swapout enablement for reserved BOs Reviewed-by: Thomas Hellstrom Reviewed-by: Christian König Signed-off-by: Roger He Signed-off-by: Alex Deucher

drm/ttm: call ttm_bo_swapout directly when ttm shrink

2017-12-27T16:38:11Z

remove the extra indirection because we have only one implementation anyway Reviewed-by: Christian König Signed-off-by: Roger He Signed-off-by: Alex Deucher

drm/ttm: add support for different pool sizes

2017-10-06T21:44:16Z

Correctly handle different page sizes in the memory accounting. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/ttm: remove unsued options from ttm_mem_global_alloc_page

2017-10-06T21:44:14Z

Nobody is actually using that, remove it. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/ttm: Add interface to export kernel_zone max memory size in ttm

2016-08-08T15:33:08Z

Signed-off-by: Ken Wang Reviewed-by: Alex Deucher Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/ttm: make sure format string cannot leak in

2014-09-17T01:15:01Z

While zone->name is currently hard coded, the call to kobject_init_and_add() should follow the more defensive argument list usage (as already done in other places in ttm_memory.c) where "%s" is used instead of directly passing in a variable as a format string. Signed-off-by: Kees Cook Signed-off-by: Dave Airlie

drm/ttm: remove ttm_mem_global->queue

2012-11-20T06:06:22Z

It's unused. Signed-off-by: Marcin Slusarz Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie