No functional changes, just cleaning up some leftovers and improve
documentation.
Signed-off-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 173 ++++++++++---------
1 file changed, 93 insertions(+), 80 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
index 592a2dd16493..1879e46bda1a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
@@ -28,12 +28,14 @@
#include "amdgpu_atomfirmware.h"
#include "atom.h"
-static inline struct amdgpu_vram_mgr *to_vram_mgr(struct ttm_resource_manager *man)
+static inline struct amdgpu_vram_mgr *
+to_vram_mgr(struct ttm_resource_manager *man)
{
return container_of(man, struct amdgpu_vram_mgr, manager);
}
-static inline struct amdgpu_device *to_amdgpu_device(struct amdgpu_vram_mgr *mgr)
+static inline struct amdgpu_device *
+to_amdgpu_device(struct amdgpu_vram_mgr *mgr)
{
return container_of(mgr, struct amdgpu_device, mman.vram_mgr);
}
@@ -81,12 +83,14 @@ static ssize_t amdgpu_mem_info_vis_vram_total_show(struct
device *dev,
* amount of currently used VRAM in bytes
*/
static ssize_t amdgpu_mem_info_vram_used_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
struct drm_device *ddev = dev_get_drvdata(dev);
struct amdgpu_device *adev = drm_to_adev(ddev);
- struct ttm_resource_manager *man = ttm_manager_type(&adev->mman.bdev,
TTM_PL_VRAM);
+ struct ttm_resource_manager *man;
+ man = ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM);
return sysfs_emit(buf, "%llu\n", amdgpu_vram_mgr_usage(man));
}
@@ -99,18 +103,28 @@ static ssize_t amdgpu_mem_info_vram_used_show(struct device *dev,
* amount of currently used visible VRAM in bytes
*/
static ssize_t amdgpu_mem_info_vis_vram_used_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
struct drm_device *ddev = dev_get_drvdata(dev);
struct amdgpu_device *adev = drm_to_adev(ddev);
- struct ttm_resource_manager *man = ttm_manager_type(&adev->mman.bdev,
TTM_PL_VRAM);
+ struct ttm_resource_manager *man;
+ man = ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM);
return sysfs_emit(buf, "%llu\n", amdgpu_vram_mgr_vis_usage(man));
}
+/**
+ * DOC: mem_info_vram_vendor
+ *
+ * The amdgpu driver provides a sysfs API for reporting the vendor of the
+ * installed VRAM
+ * The file mem_info_vram_vendor is used for this and returns the name of the
+ * vendor.
+ */
static ssize_t amdgpu_mem_info_vram_vendor(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
struct drm_device *ddev = dev_get_drvdata(dev);
struct amdgpu_device *adev = drm_to_adev(ddev);
@@ -161,78 +175,6 @@ static const struct attribute
*amdgpu_vram_mgr_attributes[] = {
NULL
};
-static const struct ttm_resource_manager_func amdgpu_vram_mgr_func;
-
-/**
- * amdgpu_vram_mgr_init - init VRAM manager and DRM MM
- *
- * @adev: amdgpu_device pointer
- *
- * Allocate and initialize the VRAM manager.
- */
-int amdgpu_vram_mgr_init(struct amdgpu_device *adev)
-{
- struct amdgpu_vram_mgr *mgr = &adev->mman.vram_mgr;
- struct ttm_resource_manager *man = &mgr->manager;
- int ret;
-
- ttm_resource_manager_init(man, adev->gmc.real_vram_size >> PAGE_SHIFT);
-
- man->func = &amdgpu_vram_mgr_func;
-
- drm_mm_init(&mgr->mm, 0, man->size);
- spin_lock_init(&mgr->lock);
- INIT_LIST_HEAD(&mgr->reservations_pending);
- INIT_LIST_HEAD(&mgr->reserved_pages);
-
- /* Add the two VRAM-related sysfs files */
- ret = sysfs_create_files(&adev->dev->kobj, amdgpu_vram_mgr_attributes);
- if (ret)
- DRM_ERROR("Failed to register sysfs\n");
-
- ttm_set_driver_manager(&adev->mman.bdev, TTM_PL_VRAM, &mgr->manager);
- ttm_resource_manager_set_used(man, true);
- return 0;
-}
-
-/**
- * amdgpu_vram_mgr_fini - free and destroy VRAM manager
- *
- * @adev: amdgpu_device pointer
- *
- * Destroy and free the VRAM manager, returns -EBUSY if ranges are still
- * allocated inside it.
- */
-void amdgpu_vram_mgr_fini(struct amdgpu_device *adev)
-{
- struct amdgpu_vram_mgr *mgr = &adev->mman.vram_mgr;
- struct ttm_resource_manager *man = &mgr->manager;
- int ret;
- struct amdgpu_vram_reservation *rsv, *temp;
-
- ttm_resource_manager_set_used(man, false);
-
- ret = ttm_resource_manager_evict_all(&adev->mman.bdev, man);
- if (ret)
- return;
-
- spin_lock(&mgr->lock);
- list_for_each_entry_safe(rsv, temp, &mgr->reservations_pending, node)
- kfree(rsv);
-
- list_for_each_entry_safe(rsv, temp, &mgr->reserved_pages, node) {
- drm_mm_remove_node(&rsv->mm_node);
- kfree(rsv);
- }
- drm_mm_takedown(&mgr->mm);
- spin_unlock(&mgr->lock);
-
- sysfs_remove_files(&adev->dev->kobj, amdgpu_vram_mgr_attributes);
-
- ttm_resource_manager_cleanup(man);
- ttm_set_driver_manager(&adev->mman.bdev, TTM_PL_VRAM, NULL);
-}
-
/**
* amdgpu_vram_mgr_vis_size - Calculate visible node size
*
@@ -282,6 +224,7 @@ u64 amdgpu_vram_mgr_bo_visible_size(struct amdgpu_bo *bo)
return usage;
}
+/* Commit the reservation of VRAM pages */
static void amdgpu_vram_mgr_do_reserve(struct ttm_resource_manager *man)
{
struct amdgpu_vram_mgr *mgr = to_vram_mgr(man);
@@ -713,3 +656,73 @@ static const struct ttm_resource_manager_func
amdgpu_vram_mgr_func = {
.free = amdgpu_vram_mgr_del,
.debug = amdgpu_vram_mgr_debug
};
+
+/**
+ * amdgpu_vram_mgr_init - init VRAM manager and DRM MM
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Allocate and initialize the VRAM manager.
+ */
+int amdgpu_vram_mgr_init(struct amdgpu_device *adev)
+{
+ struct amdgpu_vram_mgr *mgr = &adev->mman.vram_mgr;
+ struct ttm_resource_manager *man = &mgr->manager;
+ int ret;
+
+ ttm_resource_manager_init(man, adev->gmc.real_vram_size >> PAGE_SHIFT);
+
+ man->func = &amdgpu_vram_mgr_func;
+
+ drm_mm_init(&mgr->mm, 0, man->size);
+ spin_lock_init(&mgr->lock);
+ INIT_LIST_HEAD(&mgr->reservations_pending);
+ INIT_LIST_HEAD(&mgr->reserved_pages);
+
+ /* Add the two VRAM-related sysfs files */
+ ret = sysfs_create_files(&adev->dev->kobj, amdgpu_vram_mgr_attributes);
+ if (ret)
+ DRM_ERROR("Failed to register sysfs\n");
+
+ ttm_set_driver_manager(&adev->mman.bdev, TTM_PL_VRAM, &mgr->manager);
+ ttm_resource_manager_set_used(man, true);
+ return 0;
+}
+
+/**
+ * amdgpu_vram_mgr_fini - free and destroy VRAM manager
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Destroy and free the VRAM manager, returns -EBUSY if ranges are still
+ * allocated inside it.
+ */
+void amdgpu_vram_mgr_fini(struct amdgpu_device *adev)
+{
+ struct amdgpu_vram_mgr *mgr = &adev->mman.vram_mgr;
+ struct ttm_resource_manager *man = &mgr->manager;
+ int ret;
+ struct amdgpu_vram_reservation *rsv, *temp;
+
+ ttm_resource_manager_set_used(man, false);
+
+ ret = ttm_resource_manager_evict_all(&adev->mman.bdev, man);
+ if (ret)
+ return;
+
+ spin_lock(&mgr->lock);
+ list_for_each_entry_safe(rsv, temp, &mgr->reservations_pending, node)
+ kfree(rsv);
+
+ list_for_each_entry_safe(rsv, temp, &mgr->reserved_pages, node) {
+ drm_mm_remove_node(&rsv->mm_node);
+ kfree(rsv);
+ }
+ drm_mm_takedown(&mgr->mm);
+ spin_unlock(&mgr->lock);
+
+ sysfs_remove_files(&adev->dev->kobj, amdgpu_vram_mgr_attributes);
+
+ ttm_resource_manager_cleanup(man);
+ ttm_set_driver_manager(&adev->mman.bdev, TTM_PL_VRAM, NULL);
+}
