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authorNirmoy Das <nirmoy.das@intel.com>2024-08-28 10:36:35 +0200
committerLucas De Marchi <lucas.demarchi@intel.com>2024-08-28 06:45:53 -0700
commit789e51597d33ec0053b029127d797d86c0d857eb (patch)
treee8307db3972992c342bc6f672526c329cbcc0baf
parent7546a8201ba288530ed1bbf2a8bdcce5e034a234 (diff)
Revert "drm/ttm: Add a flag to allow drivers to skip clear-on-free"
Remove TTM_TT_FLAG_CLEARED_ON_FREE now that XE stopped using this flag. This reverts commit decbfaf06db05fa1f9b33149ebb3c145b44e878f. Cc: Christian König <christian.koenig@amd.com> Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Matthew Auld <matthew.auld@intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Signed-off-by: Nirmoy Das <nirmoy.das@intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240828083635.23601-2-nirmoy.das@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
-rw-r--r--drivers/gpu/drm/ttm/ttm_pool.c18
-rw-r--r--include/drm/ttm/ttm_tt.h6
2 files changed, 8 insertions, 16 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_pool.c b/drivers/gpu/drm/ttm/ttm_pool.c
index 935ab3cfd046..8504dbe19c1a 100644
--- a/drivers/gpu/drm/ttm/ttm_pool.c
+++ b/drivers/gpu/drm/ttm/ttm_pool.c
@@ -222,18 +222,15 @@ static void ttm_pool_unmap(struct ttm_pool *pool, dma_addr_t dma_addr,
}
/* Give pages into a specific pool_type */
-static void ttm_pool_type_give(struct ttm_pool_type *pt, struct page *p,
- bool cleared)
+static void ttm_pool_type_give(struct ttm_pool_type *pt, struct page *p)
{
unsigned int i, num_pages = 1 << pt->order;
- if (!cleared) {
- for (i = 0; i < num_pages; ++i) {
- if (PageHighMem(p))
- clear_highpage(p + i);
- else
- clear_page(page_address(p + i));
- }
+ for (i = 0; i < num_pages; ++i) {
+ if (PageHighMem(p))
+ clear_highpage(p + i);
+ else
+ clear_page(page_address(p + i));
}
spin_lock(&pt->lock);
@@ -397,7 +394,6 @@ static void ttm_pool_free_range(struct ttm_pool *pool, struct ttm_tt *tt,
pgoff_t start_page, pgoff_t end_page)
{
struct page **pages = &tt->pages[start_page];
- bool cleared = tt->page_flags & TTM_TT_FLAG_CLEARED_ON_FREE;
unsigned int order;
pgoff_t i, nr;
@@ -411,7 +407,7 @@ static void ttm_pool_free_range(struct ttm_pool *pool, struct ttm_tt *tt,
pt = ttm_pool_select_type(pool, caching, order);
if (pt)
- ttm_pool_type_give(pt, *pages, cleared);
+ ttm_pool_type_give(pt, *pages);
else
ttm_pool_free_page(pool, caching, order, *pages);
}
diff --git a/include/drm/ttm/ttm_tt.h b/include/drm/ttm/ttm_tt.h
index cfaf49de2419..2b9d856ff388 100644
--- a/include/drm/ttm/ttm_tt.h
+++ b/include/drm/ttm/ttm_tt.h
@@ -85,9 +85,6 @@ struct ttm_tt {
* fault handling abuses the DMA api a bit and dma_map_attrs can't be
* used to assure pgprot always matches.
*
- * TTM_TT_FLAG_CLEARED_ON_FREE: Set this if a drm driver handles
- * clearing backing store
- *
* TTM_TT_FLAG_PRIV_POPULATED: TTM internal only. DO NOT USE. This is
* set by TTM after ttm_tt_populate() has successfully returned, and is
* then unset when TTM calls ttm_tt_unpopulate().
@@ -97,9 +94,8 @@ struct ttm_tt {
#define TTM_TT_FLAG_EXTERNAL BIT(2)
#define TTM_TT_FLAG_EXTERNAL_MAPPABLE BIT(3)
#define TTM_TT_FLAG_DECRYPTED BIT(4)
-#define TTM_TT_FLAG_CLEARED_ON_FREE BIT(5)
-#define TTM_TT_FLAG_PRIV_POPULATED BIT(6)
+#define TTM_TT_FLAG_PRIV_POPULATED BIT(5)
uint32_t page_flags;
/** @num_pages: Number of pages in the page array. */
uint32_t num_pages;