gpu: nvgpu: set soc memory aperture type

Set platform data for soc memory aperture type, whether
soc memory aperture seen as sysmem or vidmem. For gk20a/gm20b,
soc memory aperture seen as vidmem.

Bug 1749338

Change-Id: I407562ca484c1a4bae1bee12089d2b19f378ca53
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/1129167
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Ken Adams <kadams@nvidia.com>

2 files changed, 10 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
index b2f3b870..38ce5a97 100644
--- a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
@@ -211,6 +211,10 @@ struct gk20a_platform {
 
         /* soc name for finding firmware files */
         const char *soc_name;
+
+        /* if vidmem aperture actually points to vidmem*/
+        bool vidmem_is_vidmem;
+
 };
 
 static inline struct gk20a_platform *gk20a_get_platform(
diff --git a/drivers/gpu/nvgpu/gk20a/platform_gk20a_tegra.c b/drivers/gpu/nvgpu/gk20a/platform_gk20a_tegra.c
index 784128b1..abe6771c 100644
--- a/drivers/gpu/nvgpu/gk20a/platform_gk20a_tegra.c
+++ b/drivers/gpu/nvgpu/gk20a/platform_gk20a_tegra.c
@@ -774,6 +774,8 @@ static int gk20a_tegra_probe(struct device *dev)
         if (tegra_get_chipid() == TEGRA_CHIPID_TEGRA13)
                 platform->soc_name = "tegra13x";
 
+        platform->g->mm.vidmem_is_vidmem = platform->vidmem_is_vidmem;
+
         gk20a_tegra_get_clocks(dev);
 
         return 0;
@@ -910,6 +912,8 @@ struct gk20a_platform gk20a_tegra_platform = {
         .dump_platform_dependencies = gk20a_tegra_debug_dump,
 
         .soc_name = "tegra12x",
+
+        .vidmem_is_vidmem = false,
 };
 
 struct gk20a_platform gm20b_tegra_platform = {
@@ -970,4 +974,6 @@ struct gk20a_platform gm20b_tegra_platform = {
         .has_cde = true,
 
         .soc_name = "tegra21x",
+
+        .vidmem_is_vidmem = false,
 };