gpu: nvgpu: Separate GMMU mapping impl from mm_gk20a.c

Separate the non-chip specific GMMU mapping implementation code
out of mm_gk20a.c. This puts all of the chip-agnostic code into
common/mm/gmmu.c in preparation for rewriting it.

JIRA NVGPU-12
JIRA NVGPU-30

Change-Id: I6f7fdac3422703f5e80bb22ad304dc27bba4814d
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/1480228
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/include/nvgpu/gmmu.h b/drivers/gpu/nvgpu/include/nvgpu/gmmu.h
index 45c5def4..ed152cd8 100644
--- a/drivers/gpu/nvgpu/include/nvgpu/gmmu.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/gmmu.h
@@ -105,4 +105,7 @@ void nvgpu_gmmu_unmap(struct vm_gk20a *vm,
                       struct nvgpu_mem *mem,
                       u64 gpu_va);
 
+void nvgpu_free_gmmu_pages(struct vm_gk20a *vm,
+                     struct gk20a_mm_entry *entry);
+
 #endif