gpu: nvgpu: Add platform flag to disable ASPM

Add a platform flag and logic to disable ASPM on boot if a
platform does not want ASPM enabled.

Bug 200256272

Change-Id: I378997290377ef8ffa21bf8e7f3f59fa134b3d4d
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/1263271
(cherry picked from commit 01e4700b74f4b4c6f0b9ffb40747653f2b63ea3c)
Reviewed-on: http://git-master/r/1274477
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index dc130e33..9e0dd64a 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -744,6 +744,7 @@ struct gpu_ops {
                 void (*available_speeds)(struct gk20a *g, u32 *speed_mask);
                 u32 (*xve_readl)(struct gk20a *g, u32 reg);
                 void (*xve_writel)(struct gk20a *g, u32 reg, u32 val);
+                void (*disable_aspm)(struct gk20a *g);
         } xve;
 };