gpu: nvgpu: Allow enabling/disabling MC interrupt

Added method to enable/disable MC interrupt by unit

Bug 200064127

Change-Id: I89e794d5b69a2a93642e2df437d6744bf595f021
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: http://git-master/r/661211
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/mc_gk20a.c b/drivers/gpu/nvgpu/gk20a/mc_gk20a.c
index 4d176403..899eeff7 100644
--- a/drivers/gpu/nvgpu/gk20a/mc_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/mc_gk20a.c
@@ -137,9 +137,27 @@ void mc_gk20a_intr_enable(struct gk20a *g)
                 mc_intr_en_0_inta_hardware_f());
 }
 
+void mc_gk20a_intr_unit_config(struct gk20a *g, bool enable,
+                bool is_stalling, u32 mask)
+{
+        u32 mask_reg = (is_stalling ? mc_intr_mask_0_r() :
+                                        mc_intr_mask_1_r());
+
+        if (enable) {
+                gk20a_writel(g, mask_reg,
+                        gk20a_readl(g, mask_reg) |
+                        mask);
+        } else {
+                gk20a_writel(g, mask_reg,
+                        gk20a_readl(g, mask_reg) &
+                        ~mask);
+        }
+}
+
 void gk20a_init_mc(struct gpu_ops *gops)
 {
         gops->mc.intr_enable = mc_gk20a_intr_enable;
+        gops->mc.intr_unit_config = mc_gk20a_intr_unit_config;
         gops->mc.isr_stall = mc_gk20a_isr_stall;
         gops->mc.isr_nonstall = mc_gk20a_isr_nonstall;
         gops->mc.isr_thread_stall = mc_gk20a_intr_thread_stall;