diff options
author | Alex Waterman <alexw@nvidia.com> | 2017-01-11 19:58:14 -0500 |
---|---|---|
committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2017-03-03 13:34:43 -0500 |
commit | 3966efc2e58f1802411f44fd00967dde448f278d (patch) | |
tree | b6cf822abc638b79acbd12b749a97ab5507a6fe9 /drivers/gpu/nvgpu/gk20a/mm_gk20a.h | |
parent | 76b78b6fdcb0bbed72645aaa85de6013e2b135c3 (diff) |
gpu: nvgpu: Give nvgpu_kalloc a less generic name
Change nvgpu_kalloc() to nvgpu_big_[mz]alloc(). This is necessary
since the natural free function name for this is nvgpu_kfree() but
that conflicts with nvgpu_k[mz]alloc() (implemented in a subsequent
patch).
This API exists becasue not all allocation sizes can be determined
at compile time and in some cases sizes may vary across the system
page size. Thus always using kmalloc() could lead to OOM errors due
to fragmentation. But always using vmalloc() is wastful of memory
for small allocations. This API tries to alleviate those problems.
Bug 1799159
Bug 1823380
Change-Id: I49ec5292ce13bcdecf112afbb4a0cfffeeb5ecfc
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/1283827
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/gk20a/mm_gk20a.h')
-rw-r--r-- | drivers/gpu/nvgpu/gk20a/mm_gk20a.h | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h index d7f6cb9a..5b96726f 100644 --- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h +++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h | |||
@@ -791,33 +791,6 @@ int gk20a_big_pages_possible(struct vm_gk20a *vm, u64 base, u64 size); | |||
791 | extern const struct gk20a_mmu_level gk20a_mm_levels_64k[]; | 791 | extern const struct gk20a_mmu_level gk20a_mm_levels_64k[]; |
792 | extern const struct gk20a_mmu_level gk20a_mm_levels_128k[]; | 792 | extern const struct gk20a_mmu_level gk20a_mm_levels_128k[]; |
793 | 793 | ||
794 | static inline void *nvgpu_kalloc(size_t size, bool clear) | ||
795 | { | ||
796 | void *p; | ||
797 | |||
798 | if (size > PAGE_SIZE) { | ||
799 | if (clear) | ||
800 | p = vzalloc(size); | ||
801 | else | ||
802 | p = vmalloc(size); | ||
803 | } else { | ||
804 | if (clear) | ||
805 | p = kzalloc(size, GFP_KERNEL); | ||
806 | else | ||
807 | p = kmalloc(size, GFP_KERNEL); | ||
808 | } | ||
809 | |||
810 | return p; | ||
811 | } | ||
812 | |||
813 | static inline void nvgpu_kfree(void *p) | ||
814 | { | ||
815 | if (virt_addr_valid(p)) | ||
816 | kfree(p); | ||
817 | else | ||
818 | vfree(p); | ||
819 | } | ||
820 | |||
821 | int gk20a_mm_get_buffer_info(struct device *dev, int dmabuf_fd, | 794 | int gk20a_mm_get_buffer_info(struct device *dev, int dmabuf_fd, |
822 | u64 *buffer_id, u64 *buffer_len); | 795 | u64 *buffer_id, u64 *buffer_len); |
823 | 796 | ||