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>
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index 75dc8bd..4e1e256 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -166,7 +166,7 @@
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 @@
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 @@
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 @@
*/
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 @@
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;
}