Commit 686a526d authored by Himal Prasad Ghimiray's avatar Himal Prasad Ghimiray
Browse files

drm/xe: Make xe_svm_alloc_vram public 



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: default avatarMatthew Brost <matthew.brost@intel.com>
Acked-by: default avatarThomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://lore.kernel.org/r/20250513040228.470682-3-himal.prasad.ghimiray@intel.com


Signed-off-by: default avatarHimal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
parent 745df157

drivers/gpu/drm/xe/xe_svm.c

+20 −10
Original line number Diff line number Diff line
@@ -677,7 +677,17 @@ 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,

/**

 * 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)

{
@@ -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;

drivers/gpu/drm/xe/xe_svm.h

+12 −0
Original line number Diff line number Diff line
@@ -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