gpu: nvgpu: Allow enabling PC sampling

Allow enabling of PC sampling hardware workaround. It is only
applicable to gm20b.

Bug 1517458
Bug 1573150

Change-Id: Iad6a3ae556489fb7ab9628637d291849d2cd98ea
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/710421

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/hw_ctxsw_prog_gm20b.h b/drivers/gpu/nvgpu/gm20b/hw_ctxsw_prog_gm20b.h
index ec44e9fb..cefd91e1 100644
--- a/drivers/gpu/nvgpu/gm20b/hw_ctxsw_prog_gm20b.h
+++ b/drivers/gpu/nvgpu/gm20b/hw_ctxsw_prog_gm20b.h
@@ -110,6 +110,14 @@ static inline u32 ctxsw_prog_main_image_pm_smpc_mode_no_ctxsw_f(void)
 {
         return 0x0;
 }
+static inline u32 ctxsw_prog_main_image_pm_pc_sampling_f(u32 v)
+{
+        return (v & 0x1) << 6;
+}
+static inline u32 ctxsw_prog_main_image_pm_pc_sampling_m(void)
+{
+        return 0x1 << 6;
+}
 static inline u32 ctxsw_prog_main_image_pm_ptr_o(void)
 {
         return 0x0000002c;