mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-10 05:39:42 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/xe: Make xe_svm_alloc_vram public

Browse Source 
This function will be used in prefetch too, hence make it public.

v2:
  - Add kernel-doc (Matthew Brost)
  - Rebase

v3:
 - Move CONFIG_DRM_XE_DEVMEM_MIRROR stub out to xe_svm.c (Matthew Brost)

Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://lore.kernel.org/r/20250513040228.470682-3-himal.prasad.ghimiray@intel.com
Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
This commit is contained in:
Himal Prasad Ghimiray
2025-05-13 09:32:15 +05:30
parent 745df157e4
commit 686a526dad
2 changed files with 32 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/gpu/drm/xe/xe_svm.c
View File

@@ -677,9 +677,19 @@ static struct xe_vram_region *tile_to_vr(struct xe_tile *tile)
return &tile->mem.vram;
}
static int xe_svm_alloc_vram(struct xe_vm *vm, struct xe_tile *tile,
struct xe_svm_range *range,
const struct drm_gpusvm_ctx *ctx)
/**
* xe_svm_alloc_vram()- Allocate device memory pages for range,
* migrating existing data.
* @vm: The VM.
* @tile: tile to allocate vram from
* @range: SVM range
* @ctx: DRM GPU SVM context
*
* Return: 0 on success, error code on failure.
*/
int xe_svm_alloc_vram(struct xe_vm *vm, struct xe_tile *tile,
struct xe_svm_range *range,
const struct drm_gpusvm_ctx *ctx)
{
struct mm_struct *mm = vm->svm.gpusvm.mm;
struct xe_vram_region *vr = tile_to_vr(tile);
@@ -733,13 +743,6 @@ static int xe_svm_alloc_vram(struct xe_vm *vm, struct xe_tile *tile,
return err;
}
#else
static int xe_svm_alloc_vram(struct xe_vm *vm, struct xe_tile *tile,
struct xe_svm_range *range,
const struct drm_gpusvm_ctx *ctx)
{
return -EOPNOTSUPP;
}
#endif
static bool supports_4K_migration(struct xe_device *xe)
@@ -1025,6 +1028,13 @@ int xe_devm_add(struct xe_tile *tile, struct xe_vram_region *vr)
return 0;
}
#else
int xe_svm_alloc_vram(struct xe_vm *vm, struct xe_tile *tile,
struct xe_svm_range *range,
const struct drm_gpusvm_ctx *ctx)
{
return -EOPNOTSUPP;
}
int xe_devm_add(struct xe_tile *tile, struct xe_vram_region *vr)
{
return 0;

12
drivers/gpu/drm/xe/xe_svm.h
View File

@@ -70,6 +70,9 @@ int xe_svm_bo_evict(struct xe_bo *bo);
void xe_svm_range_debug(struct xe_svm_range *range, const char *operation);
int xe_svm_alloc_vram(struct xe_vm *vm, struct xe_tile *tile,
struct xe_svm_range *range,
const struct drm_gpusvm_ctx *ctx);
/**
* xe_svm_range_has_dma_mapping() - SVM range has DMA mapping
* @range: SVM range
@@ -97,6 +100,7 @@ void xe_svm_flush(struct xe_vm *vm);
#include <linux/interval_tree.h>
struct drm_pagemap_device_addr;
struct drm_gpusvm_ctx;
struct xe_bo;
struct xe_gt;
struct xe_vm;
@@ -167,6 +171,14 @@ void xe_svm_range_debug(struct xe_svm_range *range, const char *operation)
{
}
static inline
int xe_svm_alloc_vram(struct xe_vm *vm, struct xe_tile *tile,
struct xe_svm_range *range,
const struct drm_gpusvm_ctx *ctx)
{
return -EOPNOTSUPP;
}
#define xe_svm_assert_in_notifier(...) do {} while (0)
#define xe_svm_range_has_dma_mapping(...) false