diff options
| author |   Christian König <christian.koenig@amd.com> | 2018-02-01 14:52:50 +0100 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2018-02-26 23:09:33 -0500 |
| commit | ec92937056db2ca3acb11929d68b95b6ab421653 (patch) | |
| tree | 558dd63ed3e5d84f11d3db95856525ae30586b78 /drivers/gpu/drm/ttm | |
| parent | Revert "drm/radeon/pm: autoswitch power state when in balanced mode" (diff) | |
| download | linux-dev-ec92937056db2ca3acb11929d68b95b6ab421653.tar.xz linux-dev-ec92937056db2ca3acb11929d68b95b6ab421653.zip | |
drm/ttm: set page mapping during allocation
To aid debugging set the page mapping during allocation instead of
during VM faults.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/ttm')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo_vm.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_tt.c | 18 |
2 files changed, 17 insertions, 2 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c index 610d6714042a..121f017ac7ca 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c @@ -257,7 +257,6 @@ static int ttm_bo_vm_fault(struct vm_fault *vmf) } else if (unlikely(!page)) { break; } - page->mapping = vma->vm_file->f_mapping; page->index = drm_vma_node_start(&bo->vma_node) + page_offset; pfn = page_to_pfn(page); diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index 39c44e301c72..9fd7115a013a 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -392,12 +392,28 @@ out_err: return ret; } +static void ttm_tt_add_mapping(struct ttm_tt *ttm) +{ + pgoff_t i; + + if (ttm->page_flags & TTM_PAGE_FLAG_SG) + return; + + for (i = 0; i < ttm->num_pages; ++i) + ttm->pages[i]->mapping = ttm->bdev->dev_mapping; +} + int ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx) { + int ret; + if (ttm->state != tt_unpopulated) return 0; - return ttm->bdev->driver->ttm_tt_populate(ttm, ctx); + ret = ttm->bdev->driver->ttm_tt_populate(ttm, ctx); + if (!ret) + ttm_tt_add_mapping(ttm); + return ret; } static void ttm_tt_clear_mapping(struct ttm_tt *ttm) |