gpu: nvgpu: add syncpoint read map

For sync-point read map:
 1. Added nvgpu_mem memory allocator in gk20a struct and
    allocated memory for this in gk20a_finalize_poweron()
    and freed this memory in gk20a_remove().
 2. Added "u64 syncpt_ro_map_gpu_va" in vm_gk20a struct
    for read map in vm.

Added nvgpu_quiesce() in nvgpu_remove() before freeing
syncpoint read map to ensure that nvgpu is idle.

JIRA GPUT19X-2

Change-Id: I7cbfec57f0992682dd833a1b0d92d694bcaf1eb3
Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1514338
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 72e47ec6..a45a7b4e 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -1293,6 +1293,7 @@ struct gk20a {
         size_t          syncpt_unit_size;
         u32             syncpt_size;
 #endif
+        struct nvgpu_mem syncpt_mem;
 };
 
 static inline unsigned long gk20a_get_gr_idle_timeout(struct gk20a *g)