gpu: nvgpu: vgpu: add function vgpu_is_reduced_bar1()

The implementation is os specific for now.

Jira EVLR-2364

Change-Id: I8ac390b056aa9ca5b5d4ab2ac4dbc06f6689f4a4
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1649944
Reviewed-by: Aingara Paramakuru <aparamakuru@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Nirav Patel <nipatel@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/vgpu/vgpu_linux.c b/drivers/gpu/nvgpu/common/linux/vgpu/vgpu_linux.c
index 69bf22ee..7aa72554 100644
--- a/drivers/gpu/nvgpu/common/linux/vgpu/vgpu_linux.c
+++ b/drivers/gpu/nvgpu/common/linux/vgpu/vgpu_linux.c
@@ -461,3 +461,11 @@ int vgpu_remove(struct platform_device *pdev)
 
         return 0;
 }
+
+bool vgpu_is_reduced_bar1(struct gk20a *g)
+{
+        struct fifo_gk20a *f = &g->fifo;
+        struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
+
+        return resource_size(l->bar1_mem) == (resource_size_t)f->userd.size;
+}