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authorJoonas Lahtinen <joonas.lahtinen@linux.intel.com>2021-09-15 13:23:27 +0300
committerJoonas Lahtinen <joonas.lahtinen@linux.intel.com>2021-09-15 13:23:27 +0300
commitd5dd580deb54483cce0cb5bbe3f1a132a28c767d (patch)
tree8803403033d49e5b57b81a68b02326943b24b067 /drivers/gpu/drm/ttm
parente935405102783219b883b1e50539908f21463e9a (diff)
parent6880fa6c56601bb8ed59df6c30fd390cc5f6dd8f (diff)
downloadlinux-d5dd580deb54483cce0cb5bbe3f1a132a28c767d.tar.bz2
Merge drm/drm-next into drm-intel-gt-next
Close the divergence which has caused patches not to apply and have a solid baseline for the PXP patches that Rodrigo will send a topic branch PR for. Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/ttm')
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo.c75
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo_util.c9
-rw-r--r--drivers/gpu/drm/ttm/ttm_device.c12
-rw-r--r--drivers/gpu/drm/ttm/ttm_module.c16
-rw-r--r--drivers/gpu/drm/ttm/ttm_range_manager.c3
-rw-r--r--drivers/gpu/drm/ttm/ttm_tt.c1
6 files changed, 63 insertions, 53 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 1b950b45cf4b..bb9e02c31946 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -102,6 +102,9 @@ void ttm_bo_move_to_lru_tail(struct ttm_buffer_object *bo,
return;
}
+ if (!mem)
+ return;
+
man = ttm_manager_type(bdev, mem->mem_type);
list_move_tail(&bo->lru, &man->lru[bo->priority]);
@@ -485,6 +488,31 @@ void ttm_bo_unlock_delayed_workqueue(struct ttm_device *bdev, int resched)
}
EXPORT_SYMBOL(ttm_bo_unlock_delayed_workqueue);
+static int ttm_bo_bounce_temp_buffer(struct ttm_buffer_object *bo,
+ struct ttm_resource **mem,
+ struct ttm_operation_ctx *ctx,
+ struct ttm_place *hop)
+{
+ struct ttm_placement hop_placement;
+ struct ttm_resource *hop_mem;
+ int ret;
+
+ hop_placement.num_placement = hop_placement.num_busy_placement = 1;
+ hop_placement.placement = hop_placement.busy_placement = hop;
+
+ /* find space in the bounce domain */
+ ret = ttm_bo_mem_space(bo, &hop_placement, &hop_mem, ctx);
+ if (ret)
+ return ret;
+ /* move to the bounce domain */
+ ret = ttm_bo_handle_move_mem(bo, hop_mem, false, ctx, NULL);
+ if (ret) {
+ ttm_resource_free(bo, &hop_mem);
+ return ret;
+ }
+ return 0;
+}
+
static int ttm_bo_evict(struct ttm_buffer_object *bo,
struct ttm_operation_ctx *ctx)
{
@@ -524,12 +552,17 @@ static int ttm_bo_evict(struct ttm_buffer_object *bo,
goto out;
}
+bounce:
ret = ttm_bo_handle_move_mem(bo, evict_mem, true, ctx, &hop);
- if (unlikely(ret)) {
- WARN(ret == -EMULTIHOP, "Unexpected multihop in eviction - likely driver bug\n");
- if (ret != -ERESTARTSYS)
+ if (ret == -EMULTIHOP) {
+ ret = ttm_bo_bounce_temp_buffer(bo, &evict_mem, ctx, &hop);
+ if (ret) {
pr_err("Buffer eviction failed\n");
- ttm_resource_free(bo, &evict_mem);
+ ttm_resource_free(bo, &evict_mem);
+ goto out;
+ }
+ /* try and move to final place now. */
+ goto bounce;
}
out:
return ret;
@@ -844,31 +877,6 @@ error:
}
EXPORT_SYMBOL(ttm_bo_mem_space);
-static int ttm_bo_bounce_temp_buffer(struct ttm_buffer_object *bo,
- struct ttm_resource **mem,
- struct ttm_operation_ctx *ctx,
- struct ttm_place *hop)
-{
- struct ttm_placement hop_placement;
- struct ttm_resource *hop_mem;
- int ret;
-
- hop_placement.num_placement = hop_placement.num_busy_placement = 1;
- hop_placement.placement = hop_placement.busy_placement = hop;
-
- /* find space in the bounce domain */
- ret = ttm_bo_mem_space(bo, &hop_placement, &hop_mem, ctx);
- if (ret)
- return ret;
- /* move to the bounce domain */
- ret = ttm_bo_handle_move_mem(bo, hop_mem, false, ctx, NULL);
- if (ret) {
- ttm_resource_free(bo, &hop_mem);
- return ret;
- }
- return 0;
-}
-
static int ttm_bo_move_buffer(struct ttm_buffer_object *bo,
struct ttm_placement *placement,
struct ttm_operation_ctx *ctx)
@@ -913,6 +921,9 @@ static bool ttm_bo_places_compat(const struct ttm_place *places,
{
unsigned i;
+ if (mem->placement & TTM_PL_FLAG_TEMPORARY)
+ return false;
+
for (i = 0; i < num_placement; i++) {
const struct ttm_place *heap = &places[i];
@@ -1149,9 +1160,9 @@ int ttm_bo_swapout(struct ttm_buffer_object *bo, struct ttm_operation_ctx *ctx,
}
if (bo->deleted) {
- ttm_bo_cleanup_refs(bo, false, false, locked);
+ ret = ttm_bo_cleanup_refs(bo, false, false, locked);
ttm_bo_put(bo);
- return 0;
+ return ret == -EBUSY ? -ENOSPC : ret;
}
ttm_bo_del_from_lru(bo);
@@ -1205,7 +1216,7 @@ out:
if (locked)
dma_resv_unlock(bo->base.resv);
ttm_bo_put(bo);
- return ret;
+ return ret == -EBUSY ? -ENOSPC : ret;
}
void ttm_bo_tt_destroy(struct ttm_buffer_object *bo)
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index e3747f069674..c893c3db2623 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -63,6 +63,9 @@ int ttm_mem_io_reserve(struct ttm_device *bdev,
void ttm_mem_io_free(struct ttm_device *bdev,
struct ttm_resource *mem)
{
+ if (!mem)
+ return;
+
if (!mem->bus.offset && !mem->bus.addr)
return;
@@ -136,7 +139,6 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
struct ttm_resource *src_mem = bo->resource;
struct ttm_resource_manager *src_man =
ttm_manager_type(bdev, src_mem->mem_type);
- struct ttm_resource src_copy = *src_mem;
union {
struct ttm_kmap_iter_tt tt;
struct ttm_kmap_iter_linear_io io;
@@ -170,11 +172,10 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
if (!(clear && ttm && !(ttm->page_flags & TTM_PAGE_FLAG_ZERO_ALLOC)))
ttm_move_memcpy(clear, dst_mem->num_pages, dst_iter, src_iter);
- src_copy = *src_mem;
+ if (!src_iter->ops->maps_tt)
+ ttm_kmap_iter_linear_io_fini(&_src_iter.io, bdev, src_mem);
ttm_bo_move_sync_cleanup(bo, dst_mem);
- if (!src_iter->ops->maps_tt)
- ttm_kmap_iter_linear_io_fini(&_src_iter.io, bdev, &src_copy);
out_src_iter:
if (!dst_iter->ops->maps_tt)
ttm_kmap_iter_linear_io_fini(&_dst_iter.io, bdev, dst_mem);
diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c
index 5f31acec3ad7..2df59b3c2ea1 100644
--- a/drivers/gpu/drm/ttm/ttm_device.c
+++ b/drivers/gpu/drm/ttm/ttm_device.c
@@ -44,6 +44,8 @@ static unsigned ttm_glob_use_count;
struct ttm_global ttm_glob;
EXPORT_SYMBOL(ttm_glob);
+struct dentry *ttm_debugfs_root;
+
static void ttm_global_release(void)
{
struct ttm_global *glob = &ttm_glob;
@@ -53,6 +55,7 @@ static void ttm_global_release(void)
goto out;
ttm_pool_mgr_fini();
+ debugfs_remove(ttm_debugfs_root);
__free_page(glob->dummy_read_page);
memset(glob, 0, sizeof(*glob));
@@ -73,6 +76,11 @@ static int ttm_global_init(void)
si_meminfo(&si);
+ ttm_debugfs_root = debugfs_create_dir("ttm", NULL);
+ if (IS_ERR(ttm_debugfs_root)) {
+ ttm_debugfs_root = NULL;
+ }
+
/* Limit the number of pages in the pool to about 50% of the total
* system memory.
*/
@@ -100,6 +108,10 @@ static int ttm_global_init(void)
debugfs_create_atomic_t("buffer_objects", 0444, ttm_debugfs_root,
&glob->bo_count);
out:
+ if (ret && ttm_debugfs_root)
+ debugfs_remove(ttm_debugfs_root);
+ if (ret)
+ --ttm_glob_use_count;
mutex_unlock(&ttm_global_mutex);
return ret;
}
diff --git a/drivers/gpu/drm/ttm/ttm_module.c b/drivers/gpu/drm/ttm/ttm_module.c
index 997c458f68a9..7fcdef278c74 100644
--- a/drivers/gpu/drm/ttm/ttm_module.c
+++ b/drivers/gpu/drm/ttm/ttm_module.c
@@ -72,22 +72,6 @@ pgprot_t ttm_prot_from_caching(enum ttm_caching caching, pgprot_t tmp)
return tmp;
}
-struct dentry *ttm_debugfs_root;
-
-static int __init ttm_init(void)
-{
- ttm_debugfs_root = debugfs_create_dir("ttm", NULL);
- return 0;
-}
-
-static void __exit ttm_exit(void)
-{
- debugfs_remove(ttm_debugfs_root);
-}
-
-module_init(ttm_init);
-module_exit(ttm_exit);
-
MODULE_AUTHOR("Thomas Hellstrom, Jerome Glisse");
MODULE_DESCRIPTION("TTM memory manager subsystem (for DRM device)");
MODULE_LICENSE("GPL and additional rights");
diff --git a/drivers/gpu/drm/ttm/ttm_range_manager.c b/drivers/gpu/drm/ttm/ttm_range_manager.c
index 03395386e8a7..f4b08a8705b3 100644
--- a/drivers/gpu/drm/ttm/ttm_range_manager.c
+++ b/drivers/gpu/drm/ttm/ttm_range_manager.c
@@ -181,6 +181,9 @@ int ttm_range_man_fini(struct ttm_device *bdev,
struct drm_mm *mm = &rman->mm;
int ret;
+ if (!man)
+ return 0;
+
ttm_resource_manager_set_used(man, false);
ret = ttm_resource_manager_evict_all(bdev, man);
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index 24031a8acd2d..d5cd8b5dc0bf 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -32,7 +32,6 @@
#define pr_fmt(fmt) "[TTM] " fmt
#include <linux/sched.h>
-#include <linux/pagemap.h>
#include <linux/shmem_fs.h>
#include <linux/file.h>
#include <drm/drm_cache.h>