gpu: nvgpu: support in-kernel vidmem mappings

Propagate the buffer aperture flag in gk20a_locked_gmmu_map up so that
buffers represented as a mem_desc and present in vidmem can be mapped to
gpu.

JIRA DNVGPU-18
JIRA DNVGPU-76

Change-Id: I46cf87e27229123016727339b9349d5e2c835b3e
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/1169308
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/semaphore_gk20a.c b/drivers/gpu/nvgpu/gk20a/semaphore_gk20a.c
index aa375b24..113c59ef 100644
--- a/drivers/gpu/nvgpu/gk20a/semaphore_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/semaphore_gk20a.c
@@ -187,7 +187,8 @@ int gk20a_semaphore_pool_map(struct gk20a_semaphore_pool *p,
 
         /* Map into the GPU... Doesn't need to be fixed. */
         p->gpu_va = gk20a_gmmu_map(vm, &p->rw_sg_table, PAGE_SIZE,
-                                   0, gk20a_mem_flag_none, false);
+                                   0, gk20a_mem_flag_none, false,
+                                   APERTURE_SYSMEM);
         if (!p->gpu_va) {
                 err = -ENOMEM;
                 goto fail_unmap_sgt;
@@ -204,7 +205,8 @@ int gk20a_semaphore_pool_map(struct gk20a_semaphore_pool *p,
                                     p->sema_sea->gpu_va, p->sema_sea->map_size,
                                     0,
                                     gk20a_mem_flag_read_only,
-                                    false);
+                                    false,
+                                    APERTURE_SYSMEM);
         if (!addr) {
                 err = -ENOMEM;
                 BUG();