gpu: nvgpu: Remove use of PM runtime in VPR fetch

VPR fetch is called only from code which already has GPU powered on.
Skip calling PM runtime.

Change-Id: I8f90f1afab150e81ad16a157cfe063848a3e4fc1
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1320732
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>

1 files changed, 2 insertions, 16 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/mm_gm20b.c b/drivers/gpu/nvgpu/gm20b/mm_gm20b.c
index 8f5d1e10..cd1a106d 100644
--- a/drivers/gpu/nvgpu/gm20b/mm_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/mm_gm20b.c
@@ -13,7 +13,6 @@
  * more details.
  */
 
-#include <linux/pm_runtime.h>
 #include <linux/delay.h>
 
 #include "gk20a/gk20a.h"
@@ -50,27 +49,14 @@ static int gm20b_mm_mmu_vpr_info_fetch_wait(struct gk20a *g,
 
 int gm20b_mm_mmu_vpr_info_fetch(struct gk20a *g)
 {
-        int ret = 0;
-
-        gk20a_busy_noresume(g->dev);
-#ifdef CONFIG_PM
-        if (!pm_runtime_active(g->dev))
-                goto fail;
-#endif
-
         if (gm20b_mm_mmu_vpr_info_fetch_wait(g, VPR_INFO_FETCH_WAIT)) {
-                ret = -ETIME;
-                goto fail;
+                return -ETIME;
         }
 
         gk20a_writel(g, fb_mmu_vpr_info_r(),
                         fb_mmu_vpr_info_fetch_true_v());
 
-        ret = gm20b_mm_mmu_vpr_info_fetch_wait(g, VPR_INFO_FETCH_WAIT);
-
-fail:
-        pm_runtime_put(g->dev);
-        return ret;
+        return gm20b_mm_mmu_vpr_info_fetch_wait(g, VPR_INFO_FETCH_WAIT);
 }
 
 static bool gm20b_mm_mmu_debug_mode_enabled(struct gk20a *g)