diff options
| author |   Thomas Hellstrom <thellstrom@vmware.com> | 2009-08-17 16:28:39 +0200 |
|---|---|---|
| committer |   Dave Airlie <airlied@linux.ie> | 2009-08-19 16:09:53 +1000 |
| commit | 5fd9cbad3a4ae82c83c55b9c621d156c326724ef (patch) | |
| tree | 1a0868a3bd2751fa861c083aeb3ac27f3f695694 /drivers/gpu/drm/ttm/ttm_tt.c | |
| parent | drm/ttm: Add a virtual ttm sysfs device. (diff) | |
| download | linux-dev-5fd9cbad3a4ae82c83c55b9c621d156c326724ef.tar.xz linux-dev-5fd9cbad3a4ae82c83c55b9c621d156c326724ef.zip | |
drm/ttm: Memory accounting rework.
Use inclusive zones to simplify accounting and its sysfs representation.
Use DMA32 accounting where applicable.
Add a sysfs interface to make the heuristically determined limits
readable and configurable.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_tt.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_tt.c | 29 |
1 files changed, 11 insertions, 18 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index 75dc8bd24592..4e1e2566d519 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -166,7 +166,7 @@ static void ttm_tt_free_user_pages(struct ttm_tt *ttm) set_page_dirty_lock(page); ttm->pages[i] = NULL; - ttm_mem_global_free(ttm->bdev->mem_glob, PAGE_SIZE, false); + ttm_mem_global_free(ttm->bdev->mem_glob, PAGE_SIZE); put_page(page); } ttm->state = tt_unpopulated; @@ -187,21 +187,14 @@ static struct page *__ttm_tt_get_page(struct ttm_tt *ttm, int index) if (!p) return NULL; - if (PageHighMem(p)) { - ret = - ttm_mem_global_alloc(mem_glob, PAGE_SIZE, - false, false, true); - if (unlikely(ret != 0)) - goto out_err; + ret = ttm_mem_global_alloc_page(mem_glob, p, false, false); + if (unlikely(ret != 0)) + goto out_err; + + if (PageHighMem(p)) ttm->pages[--ttm->first_himem_page] = p; - } else { - ret = - ttm_mem_global_alloc(mem_glob, PAGE_SIZE, - false, false, false); - if (unlikely(ret != 0)) - goto out_err; + else ttm->pages[++ttm->last_lomem_page] = p; - } } return p; out_err: @@ -355,8 +348,8 @@ static void ttm_tt_free_alloced_pages(struct ttm_tt *ttm) printk(KERN_ERR TTM_PFX "Erroneous page count. " "Leaking pages.\n"); - ttm_mem_global_free(ttm->bdev->mem_glob, PAGE_SIZE, - PageHighMem(cur_page)); + ttm_mem_global_free_page(ttm->bdev->mem_glob, + cur_page); __free_page(cur_page); } } @@ -411,7 +404,7 @@ int ttm_tt_set_user(struct ttm_tt *ttm, */ ret = ttm_mem_global_alloc(mem_glob, num_pages * PAGE_SIZE, - false, false, false); + false, false); if (unlikely(ret != 0)) return ret; @@ -422,7 +415,7 @@ int ttm_tt_set_user(struct ttm_tt *ttm, if (ret != num_pages && write) { ttm_tt_free_user_pages(ttm); - ttm_mem_global_free(mem_glob, num_pages * PAGE_SIZE, false); + ttm_mem_global_free(mem_glob, num_pages * PAGE_SIZE); return -ENOMEM; } |