gpu: nvgpu: add remove_gr_sysfs gpu op

Add remove_gr_sys() op to gpu_ops to reverse steps
done in create_gr_sysfs().

Make gv11b_tegra_remove() specific to gv11b instead
to properly remove sysfs nodes. This also helps in
having gv11b specific remove steps.

Also, update platform remove function of dGPU i.e.
nvgpu_pci_tegra_remove() to remove sysfs nodes. This
adds parity with iGPU platform remove.

Bug 1987855

Change-Id: Ibbaffac5c24346709347f86444a951461894354d
Signed-off-by: Nitin Kumbhar <nkumbhar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1735987
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 7 insertions, 6 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/platform_gp10b_tegra.c b/drivers/gpu/nvgpu/common/linux/platform_gp10b_tegra.c
index 5d7ee84d..a2506341 100644
--- a/drivers/gpu/nvgpu/common/linux/platform_gp10b_tegra.c
+++ b/drivers/gpu/nvgpu/common/linux/platform_gp10b_tegra.c
@@ -67,8 +67,6 @@ static struct {
         {"gpu", GPCCLK_INIT_RATE},
         {"gpu_sys", 204000000} };
 
-static void gr_gp10b_remove_sysfs(struct device *dev);
-
 /*
  * gp10b_tegra_get_clocks()
  *
@@ -174,9 +172,12 @@ static int gp10b_tegra_late_probe(struct device *dev)
         return 0;
 }
 
-int gp10b_tegra_remove(struct device *dev)
+static int gp10b_tegra_remove(struct device *dev)
 {
-        gr_gp10b_remove_sysfs(dev);
+        struct gk20a *g = get_gk20a(dev);
+
+        if (g->ops.gr.remove_gr_sysfs)
+                g->ops.gr.remove_gr_sysfs(g);
 
         /* deinitialise tegra specific scaling quirks */
         gp10b_tegra_scale_exit(dev);
@@ -792,9 +793,9 @@ void gr_gp10b_create_sysfs(struct gk20a *g)
                 dev_err(dev, "Failed to create sysfs attributes!\n");
 }
 
-static void gr_gp10b_remove_sysfs(struct device *dev)
+void gr_gp10b_remove_sysfs(struct gk20a *g)
 {
-        struct gk20a *g = get_gk20a(dev);
+        struct device *dev = dev_from_gk20a(g);
 
         if (!g->ecc.gr.sm_lrf_single_err_count.counters)
                 return;