gpu: nvgpu: add cache maintenance timeout override

Add functions to get per-chip cache maintenance timeout overrides.

JIRA: NVGPUGV100-GV100

Change-Id: Ie14efc616e7af52ede60031c789bd2ae70857a6e
Signed-off-by: David Nieto <dmartineznie@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1582768
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
index 13698cd7..15876b10 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
@@ -315,6 +315,14 @@ static inline u64 __nv_gmmu_va_small_page_limit(void)
         return ((u64)SZ_1G * 56);
 }
 
+enum nvgpu_flush_op {
+        NVGPU_FLUSH_DEFAULT,
+        NVGPU_FLUSH_FB,
+        NVGPU_FLUSH_L2_INV,
+        NVGPU_FLUSH_L2_FLUSH,
+        NVGPU_FLUSH_CBC_CLEAN,
+};
+
 enum gmmu_pgsz_gk20a __get_pte_size_fixed_map(struct vm_gk20a *vm,
                                               u64 base, u64 size);
 enum gmmu_pgsz_gk20a __get_pte_size(struct vm_gk20a *vm, u64 base, u64 size);