kernel/include/drm/ttm/ttm_memory.h, branch linux-6.18.y

drm/ttm: move memory accounting into vmwgfx v4

2021-02-09T16:27:33Z

This is just another feature which is only used by VMWGFX, so move it into the driver instead. I've tried to add the accounting sysfs file to the kobject of the drm minor, but I'm not 100% sure if this works as expected. v2: fix typo in KFD and avoid 64bit divide v3: fix init order in VMWGFX v4: use pdev sysfs reference instead of drm Signed-off-by: Christian König Reviewed-by: Zack Rusin (v3) Tested-by: Nirmoy Das Link: https://patchwork.freedesktop.org/patch/msgid/20210208133226.36955-2-christian.koenig@amd.com

drm/ttm: remove superflous extern attribute from funcs

2020-09-17T14:14:42Z

Extern is the default attribute for functions anyway. Signed-off-by: Christian König Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/390972/

drm/ttm: some cleanups

2020-09-17T09:44:04Z

Unexport ttm_check_under_lowerlimit. Make ttm_bo_acc_size static and unexport it. Remove ttm_get_kernel_zone_memory_size. Signed-off-by: Christian König Reviewed-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/390515/

drm/ttm: remove pointers to globals

2019-10-25T09:40:51Z

As the name says global memory and bo accounting is global. So it doesn't make to much sense having pointers to global structures all around the code. Signed-off-by: Christian König Reviewed-by: Thomas Hellström Link: https://patchwork.freedesktop.org/patch/332879/

drm/ttm: use a static ttm_mem_global instance

2018-11-05T19:21:18Z

As the name says we only need one global instance of ttm_mem_global. Drop all the driver initialization and just use a single exported instance which is initialized during BO global initialization. Signed-off-by: Christian König Reviewed-by: Junwei Zhang Signed-off-by: Alex Deucher

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: 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