gpu: nvgpu: vgpu: add t210 gm20b support

- add hal initializaiton
- create folders vgpu/gk20a and vgpu/gm20b for specific code

Bug 1653185

Change-Id: If94d45e22a1d73d2e4916673736cc29751be4e40
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: http://git-master/r/774148
GVS: Gerrit_Virtual_Submit
Reviewed-by: Aingara Paramakuru <aparamakuru@nvidia.com>
Reviewed-by: Ken Adams <kadams@nvidia.com>

1 files changed, 22 insertions, 9 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/vgpu.c b/drivers/gpu/nvgpu/vgpu/vgpu.c
index b16fe47c..b2c08d68 100644
--- a/drivers/gpu/nvgpu/vgpu/vgpu.c
+++ b/drivers/gpu/nvgpu/vgpu/vgpu.c
@@ -22,6 +22,8 @@
 #include "gk20a/hal_gk20a.h"
 #include "gk20a/hw_mc_gk20a.h"
 
+#include "gm20b/hal_gm20b.h"
+
 static inline int vgpu_comm_init(struct platform_device *pdev)
 {
         size_t queue_sizes[] = { TEGRA_VGPU_QUEUE_SIZES };
@@ -243,27 +245,38 @@ static void vgpu_detect_chip(struct gk20a *g)
                         g->gpu_characteristics.rev);
 }
 
+void vgpu_init_hal_common(struct gk20a *g)
+{
+        struct gpu_ops *gops = &g->ops;
+
+        vgpu_init_fifo_ops(gops);
+        vgpu_init_gr_ops(gops);
+        vgpu_init_ltc_ops(gops);
+        vgpu_init_mm_ops(gops);
+        vgpu_init_debug_ops(gops);
+}
+
 static int vgpu_init_hal(struct gk20a *g)
 {
         u32 ver = g->gpu_characteristics.arch + g->gpu_characteristics.impl;
+        int err;
 
         switch (ver) {
         case GK20A_GPUID_GK20A:
                 gk20a_dbg_info("gk20a detected");
-                /* init gk20a ops then override with virt extensions */
-                gk20a_init_hal(g);
-                vgpu_init_fifo_ops(&g->ops);
-                vgpu_init_gr_ops(&g->ops);
-                vgpu_init_ltc_ops(&g->ops);
-                vgpu_init_mm_ops(&g->ops);
-                vgpu_init_debug_ops(&g->ops);
+                err = vgpu_gk20a_init_hal(g);
+                break;
+        case GK20A_GPUID_GM20B:
+                gk20a_dbg_info("gm20b detected");
+                err = vgpu_gm20b_init_hal(g);
                 break;
         default:
                 gk20a_err(&g->dev->dev, "no support for %x", ver);
-                return -ENODEV;
+                err = -ENODEV;
+                break;
         }
 
-        return 0;
+        return err;
 }
 
 int vgpu_pm_finalize_poweron(struct device *dev)