gpu: nvgpu: gp10b: skip powergate if no BPMP

The powergating APIs only work if the BPMP is running.  Skip
these calls if it's not available, instead of relying on
is_linsim, which doesn't work under all environments.

Change-Id: I34325847b2ebf33c5db2f31111c57d22ed28ef53
Signed-off-by: Matt Craighead <mcraighead@nvidia.com>
Reviewed-on: http://git-master/r/812415
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gp10b/platform_gp10b_tegra.c b/drivers/gpu/nvgpu/gp10b/platform_gp10b_tegra.c
index eb99a66c..559cad2e 100644
--- a/drivers/gpu/nvgpu/gp10b/platform_gp10b_tegra.c
+++ b/drivers/gpu/nvgpu/gp10b/platform_gp10b_tegra.c
@@ -25,6 +25,7 @@
 #include <linux/nvmap.h>
 #include <linux/tegra_pm_domains.h>
 #include <linux/reset.h>
+#include <soc/tegra/tegra_bpmp.h>
 #include "gk20a/platform_gk20a.h"
 #include "gk20a/gk20a.h"
 #include "platform_tegra.h"
@@ -136,7 +137,7 @@ static bool gp10b_tegra_is_railgated(struct platform_device *pdev)
 {
         bool ret = false;
 
-        if (!tegra_platform_is_linsim())
+        if (tegra_bpmp_running())
                 ret = !tegra_powergate_is_powered(TEGRA_POWERGATE_GPU);
 
         return ret;
@@ -146,7 +147,7 @@ static int gp10b_tegra_railgate(struct platform_device *pdev)
 {
         struct gk20a_platform *platform = gk20a_get_platform(pdev);
 
-        if (!tegra_platform_is_linsim() &&
+        if (tegra_bpmp_running() &&
             tegra_powergate_is_powered(TEGRA_POWERGATE_GPU)) {
                 int i;
                 for (i = 0; i < platform->num_clks; i++) {
@@ -163,7 +164,7 @@ static int gp10b_tegra_unrailgate(struct platform_device *pdev)
         int ret = 0;
         struct gk20a_platform *platform = gk20a_get_platform(pdev);
 
-        if (!tegra_platform_is_linsim()) {
+        if (tegra_bpmp_running()) {
                 int i;
                 ret = tegra_unpowergate_partition(TEGRA_POWERGATE_GPU);
                 for (i = 0; i < platform->num_clks; i++) {