gpu: nvgpu: enable gp10b rail calls to bpmp

Bug 200086985

Change-Id: I9eaa135b96629636a6b949ae1e3874dd3abd5138
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: http://git-master/r/794723
Reviewed-on: http://git-master/r/743217
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 18 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/gp10b/platform_gp10b_tegra.c b/drivers/gpu/nvgpu/gp10b/platform_gp10b_tegra.c
index efecb1e3..44b27fe7 100644
--- a/drivers/gpu/nvgpu/gp10b/platform_gp10b_tegra.c
+++ b/drivers/gpu/nvgpu/gp10b/platform_gp10b_tegra.c
@@ -63,17 +63,28 @@ static int gp10b_tegra_late_probe(struct platform_device *pdev)
 
 static bool gp10b_tegra_is_railgated(struct platform_device *pdev)
 {
-        return false;
+        bool ret = false;
+
+        if (!tegra_platform_is_linsim())
+                ret = !tegra_powergate_is_powered(TEGRA_POWERGATE_GPU);
+
+        return ret;
 }
 
 static int gp10b_tegra_railgate(struct platform_device *pdev)
 {
+        if (!tegra_platform_is_linsim() &&
+            tegra_powergate_is_powered(TEGRA_POWERGATE_GPU))
+                tegra_powergate_partition(TEGRA_POWERGATE_GPU);
         return 0;
 }
 
 static int gp10b_tegra_unrailgate(struct platform_device *pdev)
 {
-        return 0;
+        int ret = 0;
+        if (!tegra_platform_is_linsim())
+                ret = tegra_unpowergate_partition(TEGRA_POWERGATE_GPU);
+        return ret;
 }
 
 static int gp10b_tegra_suspend(struct device *dev)
@@ -85,6 +96,11 @@ struct gk20a_platform t18x_gpu_tegra_platform = {
         .has_syncpoints = true,
 
         /* power management configuration */
+        .railgate_delay         = 500,
+        .clockgate_delay        = 50,
+
+        /* power management configuration */
+        .can_railgate           = false,
         .enable_elpg            = false,
 
         .probe = gp10b_tegra_probe,