gpu: nvgpu: gp10b: Implement SetCoalesceBufferSize

Implement method for setting the coalesce buffer size at runtime.

Bug 1681992

Change-Id: Ice6c00a27f642c2d68d6cd0e30c12df2e48f5374
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/802366
(cherry picked from commit bd763bc8a16b80ccc8f79b2229eccf2fe2417611)
Reviewed-on: http://git-master/r/808239
GVS: Gerrit_Virtual_Submit

3 files changed, 30 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gp10b/gr_gp10b.c b/drivers/gpu/nvgpu/gp10b/gr_gp10b.c
index c339b14d..1a50d29a 100644
--- a/drivers/gpu/nvgpu/gp10b/gr_gp10b.c
+++ b/drivers/gpu/nvgpu/gp10b/gr_gp10b.c
@@ -290,6 +290,20 @@ static void gr_gp10b_set_go_idle_timeout(struct gk20a *g, u32 data)
         gk20a_writel(g, gr_fe_go_idle_timeout_r(), data);
 }
 
+static void gr_gp10b_set_coalesce_buffer_size(struct gk20a *g, u32 data)
+{
+        u32 val;
+
+        gk20a_dbg_fn("");
+
+        val = gk20a_readl(g, gr_gpcs_tc_debug0_r());
+        val = set_field(val, gr_gpcs_tc_debug0_limit_coalesce_buffer_size_m(),
+                             gr_gpcs_tc_debug0_limit_coalesce_buffer_size_f(data));
+        gk20a_writel(g, gr_gpcs_tc_debug0_r(), val);
+
+        gk20a_dbg_fn("done");
+}
+
 static int gr_gp10b_handle_sw_method(struct gk20a *g, u32 addr,
                                      u32 class_num, u32 offset, u32 data)
 {
@@ -319,6 +333,9 @@ static int gr_gp10b_handle_sw_method(struct gk20a *g, u32 addr,
                 case NVC097_SET_GO_IDLE_TIMEOUT:
                         gr_gp10b_set_go_idle_timeout(g, data);
                         break;
+                case NVC097_SET_COALESCE_BUFFER_SIZE:
+                        gr_gp10b_set_coalesce_buffer_size(g, data);
+                        break;
                 default:
                         goto fail;
                 }
diff --git a/drivers/gpu/nvgpu/gp10b/gr_gp10b.h b/drivers/gpu/nvgpu/gp10b/gr_gp10b.h
index 370e0ea3..bf49ba6f 100644
--- a/drivers/gpu/nvgpu/gp10b/gr_gp10b.h
+++ b/drivers/gpu/nvgpu/gp10b/gr_gp10b.h
@@ -27,6 +27,7 @@ enum {
 
 #define NVC097_SET_GO_IDLE_TIMEOUT              0x022c
 #define NVC097_SET_ALPHA_CIRCULAR_BUFFER_SIZE   0x02dc
+#define NVC097_SET_COALESCE_BUFFER_SIZE         0x1028
 #define NVC097_SET_CIRCULAR_BUFFER_SIZE         0x1280
 #define NVC097_SET_SHADER_EXCEPTIONS            0x1528
 #define NVC0C0_SET_SHADER_EXCEPTIONS            0x1528
diff --git a/drivers/gpu/nvgpu/gp10b/hw_gr_gp10b.h b/drivers/gpu/nvgpu/gp10b/hw_gr_gp10b.h
index 6e4f7d1a..e33f0734 100644
--- a/drivers/gpu/nvgpu/gp10b/hw_gr_gp10b.h
+++ b/drivers/gpu/nvgpu/gp10b/hw_gr_gp10b.h
@@ -3786,4 +3786,16 @@ static inline u32 gr_gpcs_tpcs_sm_disp_ctrl_re_suppress_disable_f(void)
 {
         return 0x1000;
 }
+static inline u32 gr_gpcs_tc_debug0_r(void)
+{
+        return 0x00418708;
+}
+static inline u32 gr_gpcs_tc_debug0_limit_coalesce_buffer_size_f(u32 v)
+{
+        return (v & 0xff) << 0;
+}
+static inline u32 gr_gpcs_tc_debug0_limit_coalesce_buffer_size_m(void)
+{
+        return 0xff << 0;
+}
 #endif