1 files changed, 28 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/platform_gv11b_tegra.c b/drivers/gpu/nvgpu/common/linux/platform_gv11b_tegra.c
index 5240480e..c56bc0f3 100644
--- a/drivers/gpu/nvgpu/common/linux/platform_gv11b_tegra.c
+++ b/drivers/gpu/nvgpu/common/linux/platform_gv11b_tegra.c
@@ -23,6 +23,7 @@
 #include <linux/reset.h>
 #include <linux/hashtable.h>
 #include <linux/clk.h>
+#include <linux/platform/tegra/emc_bwmgr.h>
 
 #include <nvgpu/nvhost.h>
 
@@ -34,6 +35,7 @@
 #include "gk20a/gk20a.h"
 #include "platform_gk20a.h"
 #include "clk.h"
+#include "scale.h"
 
 #include "gp10b/platform_gp10b.h"
 #include "platform_gp10b_tegra.h"
@@ -135,9 +137,16 @@ static int gv11b_tegra_railgate(struct device *dev)
 {
 #ifdef TEGRA194_POWER_DOMAIN_GPU
         struct gk20a_platform *platform = gk20a_get_platform(dev);
+        struct gk20a_scale_profile *profile = platform->g->scale_profile;
         struct gk20a *g = get_gk20a(dev);
         int i;
 
+        /* remove emc frequency floor */
+        if (profile)
+                tegra_bwmgr_set_emc(
+                        (struct tegra_bwmgr_client *)profile->private_data,
+                        0, TEGRA_BWMGR_SET_EMC_FLOOR);
+
         if (tegra_bpmp_running()) {
                 nvgpu_log(g, gpu_dbg_info, "bpmp running");
                 if (!tegra_powergate_is_powered(TEGRA194_POWER_DOMAIN_GPU)) {
@@ -164,6 +173,7 @@ static int gv11b_tegra_unrailgate(struct device *dev)
 #ifdef TEGRA194_POWER_DOMAIN_GPU
         struct gk20a_platform *platform = gk20a_get_platform(dev);
         struct gk20a *g = get_gk20a(dev);
+        struct gk20a_scale_profile *profile = platform->g->scale_profile;
         int i;
 
         if (tegra_bpmp_running()) {
@@ -182,6 +192,13 @@ static int gv11b_tegra_unrailgate(struct device *dev)
         } else {
                 nvgpu_log(g, gpu_dbg_info, "bpmp not running");
         }
+
+        /* to start with set emc frequency floor to max rate*/
+        if (profile)
+                tegra_bwmgr_set_emc(
+                        (struct tegra_bwmgr_client *)profile->private_data,
+                        tegra_bwmgr_get_max_emc_rate(),
+                        TEGRA_BWMGR_SET_EMC_FLOOR);
 #endif
         return ret;
 }
@@ -225,6 +242,17 @@ struct gk20a_platform gv11b_tegra_platform = {
         .busy = gk20a_tegra_busy,
         .idle = gk20a_tegra_idle,
 
+        .clk_round_rate = gp10b_round_clk_rate,
+        .get_clk_freqs = gp10b_clk_get_freqs,
+
+        /* frequency scaling configuration */
+        .initscale = gp10b_tegra_scale_init,
+        .prescale = gp10b_tegra_prescale,
+        .postscale = gp10b_tegra_postscale,
+        .devfreq_governor = "nvhost_podgov",
+
+        .qos_notify = gk20a_scale_qos_notify,
+
         .dump_platform_dependencies = gk20a_tegra_debug_dump,
 
         .soc_name = "tegra19x",