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

drm/ttm: Use GFP_TRANSHUGE_LIGHT for allocating huge pages

2018-05-09T20:16:30Z

GFP_TRANSHUGE tries very hard to allocate huge pages, which can result in long delays with high memory pressure. I have observed firefox freezing for up to around a minute due to this while restic was taking a full system backup. Since we don't really need huge pages, use GFP_TRANSHUGE_LIGHT | __GFP_NORETRY instead, in order to fail quickly when there are no huge pages available. Set __GFP_KSWAPD_RECLAIM as well, in order for huge pages to be freed up in the background if necessary. With these changes, I'm no longer seeing freezes during a restic backup. Cc: stable@vger.kernel.org Reviewed-by: Christian König Signed-off-by: Michel Dänzer 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: drop ttm->glob

2018-02-27T04:09:45Z

The pointer is available as ttm->bdev->glob as well. Signed-off-by: Christian König Reviewed-by: Michel Dänzer Signed-off-by: Alex Deucher

drm/ttm: add the missed global memory count update

2018-02-19T19:17:59Z

when ttm_mem_global_alloc_page fails, we should call ttm_mem_global_free_page to update memory count for the ttm pages which already run ttm_mem_global_alloc_page successfully Signed-off-by: Roger He Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/ttm: Allow page allocations w/o triggering OOM..

2018-02-19T19:17:58Z

This to allow drivers to choose to avoid OOM invocation and handle page allocation failures instead. v2: Remove extra new lines. Signed-off-by: Andrey Grodzovsky Reviewed-by: Christian König Reviewed-by: Roger He Signed-off-by: Alex Deucher

Merge branch 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux into drm-next

2018-01-25T01:40:54Z

A few more fixes for 4.16, nothing major. A few more fixes for 4.16. This is on top of the pull request from last week. Most notable change here is a fix to the link order for the now separate from amdgpu GPU scheduler to fix crashes when the modules are build into the kernel rather than as modules. * 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux: drm: fix gpu scheduler link order drm/amd/display: Demote error print to debug print when ATOM impl missing drm/amdgpu: Avoid leaking PM domain on driver unbind (v2) drm/amd/amdgpu: Add Polaris version check drm/amdgpu: Reenable manual GPU reset from sysfs drm/amdgpu: disable MMHUB power gating on raven drm/ttm: Don't unreserve swapped BOs that were previously reserved drm/ttm: Don't add swapped BOs to swap-LRU list drm/amdgpu: only check for ECC on Vega10 drm/amd/powerplay: Fix smu_table_entry.handle type drm/ttm: add VADDR_FLAG_UPDATED_COUNT to correctly update dma_page global count drm/radeon: fill in rb backend map on evergreen/ni. drm/amdgpu/gfx9: fix ngg enablement to clear gds reserved memory (v2) drm/ttm: only free pages rather than update global memory count together drm/amdgpu: fix CPU based VM updates drm/amdgpu: fix typo in amdgpu_vce_validate_bo drm/amdgpu: fix amdgpu_vm_pasid_fault_credit drm/ttm: check the return value of register_shrinker drm/radeon: fix sparse warning: Should it be static?

BackMerge tag 'v4.15-rc8' into drm-next

2018-01-17T23:32:15Z

Linux 4.15-rc8 Daniel requested this for so the intel CI won't fall over on drm-next so often.

drm/ttm: only free pages rather than update global memory count together

2018-01-16T20:35:27Z

if ttm_get_pages or ttm_mem_global_alloc_page fail, should not update global memory count. Signed-off-by: Roger He Reviewed-by: Christian König Tested-by: Andrey Grodzovsky Acked-by: Andrey Grodzovsky Signed-off-by: Alex Deucher

drm/ttm: check the return value of register_shrinker

2018-01-16T20:35:26Z

This fixes the build warning: "ignoring return value of 'register_shrinker', declared with attribute warn_unused_result [-Wunused-result]" Signed-off-by: Roger He Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/ttm: check the return value of kzalloc

2018-01-02T19:54:05Z

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