gpu: nvgpu: gv11b: disable SCC pagepool invalidates

Disable SCC pagepool invalidates as is required by HW. Since this
register is context-switched, add these in the GR init sequence.

Bug 2040262

Change-Id: I8dd1b7c7c4b0544878ca57b1261f9c85fa380d47
Signed-off-by: Sami Kiminki <skiminki@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1649719
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2 files changed, 22 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gv11b/gr_gv11b.c b/drivers/gpu/nvgpu/gv11b/gr_gv11b.c
index 3e207811..67bd4b88 100644
--- a/drivers/gpu/nvgpu/gv11b/gr_gv11b.c
+++ b/drivers/gpu/nvgpu/gv11b/gr_gv11b.c
@@ -2765,6 +2765,12 @@ int gr_gv11b_init_fs_state(struct gk20a *g)
                          gr_gpcs_tpcs_sm_disp_ctrl_re_suppress_disable_f());
         gk20a_writel(g, gr_gpcs_tpcs_sm_disp_ctrl_r(), data);
 
+        /* Disable SCC pagepool invalidates */
+        data = gk20a_readl(g, gr_scc_debug_r());
+        data = set_field(data, gr_scc_debug_pagepool_invalidates_m(),
+                         gr_scc_debug_pagepool_invalidates_disable_f());
+        gk20a_writel(g, gr_scc_debug_r(), data);
+
         if (g->gr.fecs_feature_override_ecc_val != 0) {
                 gk20a_writel(g,
                         gr_fecs_feature_override_ecc_r(),
diff --git a/drivers/gpu/nvgpu/include/nvgpu/hw/gv11b/hw_gr_gv11b.h b/drivers/gpu/nvgpu/include/nvgpu/hw/gv11b/hw_gr_gv11b.h
index d34dcf33..c430122d 100644
--- a/drivers/gpu/nvgpu/include/nvgpu/hw/gv11b/hw_gr_gv11b.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/hw/gv11b/hw_gr_gv11b.h
@@ -2932,6 +2932,22 @@ static inline u32 gr_ds_num_tpc_per_gpc_r(u32 i)
 {
         return 0x00405870U + i*4U;
 }
+static inline u32 gr_scc_debug_r(void)
+{
+        return 0x00408000U;
+}
+static inline u32 gr_scc_debug_pagepool_invalidates_m(void)
+{
+        return 0x1U << 9U;
+}
+static inline u32 gr_scc_debug_pagepool_invalidates_disable_f(void)
+{
+        return 0x200U;
+}
+static inline u32 gr_scc_debug_pagepool_invalidates_enable_f(void)
+{
+        return 0x0U;
+}
 static inline u32 gr_scc_bundle_cb_base_r(void)
 {
         return 0x00408004U;