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drm/nouveau/core/memory: add mechanism to retrieve allocation granularity 

Needed by VMM code to determine whether an allocation is compatible with
a given page size (ie. you can't map 4KiB system memory pages into 64KiB
GPU pages).

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2017-11-01 03:56:19 +10:00
parent 19a82e492c
commit 2c9c4910f8
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/nouveau/include/nvkm/core/memory.h
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@ -26,6 +26,7 @@ struct nvkm_memory {
struct nvkm_memory_func { struct nvkm_memory_func {
void *(*dtor)(struct nvkm_memory *); void *(*dtor)(struct nvkm_memory *);
enum nvkm_memory_target (*target)(struct nvkm_memory *); enum nvkm_memory_target (*target)(struct nvkm_memory *);
u8 (*page)(struct nvkm_memory *);
u64 (*addr)(struct nvkm_memory *); u64 (*addr)(struct nvkm_memory *);
u64 (*size)(struct nvkm_memory *); u64 (*size)(struct nvkm_memory *);
void (*boot)(struct nvkm_memory *, struct nvkm_vmm *); void (*boot)(struct nvkm_memory *, struct nvkm_vmm *);
@ -51,6 +52,7 @@ void nvkm_memory_tags_put(struct nvkm_memory *, struct nvkm_device *,
struct nvkm_tags **); struct nvkm_tags **);
#define nvkm_memory_target(p) (p)->func->target(p) #define nvkm_memory_target(p) (p)->func->target(p)
#define nvkm_memory_page(p) (p)->func->page(p)
#define nvkm_memory_addr(p) (p)->func->addr(p) #define nvkm_memory_addr(p) (p)->func->addr(p)
#define nvkm_memory_size(p) (p)->func->size(p) #define nvkm_memory_size(p) (p)->func->size(p)
#define nvkm_memory_boot(p,v) (p)->func->boot((p),(v)) #define nvkm_memory_boot(p,v) (p)->func->boot((p),(v))