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, 33 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/ltc_vgpu.c b/drivers/gpu/nvgpu/vgpu/ltc_vgpu.c
index 211e34b5..199e880b 100644
--- a/drivers/gpu/nvgpu/vgpu/ltc_vgpu.c
+++ b/drivers/gpu/nvgpu/vgpu/ltc_vgpu.c
@@ -1,7 +1,7 @@
 /*
  * Virtualized GPU L2
  *
- * Copyright (c) 2014 NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2015 NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -24,7 +24,7 @@ static int vgpu_determine_L2_size_bytes(struct gk20a *g)
 
         if (vgpu_get_attribute(platform->virt_handle,
                         TEGRA_VGPU_ATTRIB_L2_SIZE, &cache_size))
-                dev_err(dev_from_gk20a(g), "unable to get L2 size");
+                dev_err(dev_from_gk20a(g), "unable to get L2 size\n");
 
         return cache_size;
 }
@@ -33,11 +33,26 @@ static int vgpu_ltc_init_comptags(struct gk20a *g, struct gr_gk20a *gr)
 {
         struct gk20a_platform *platform = gk20a_get_platform(g->dev);
         u32 max_comptag_lines = 0;
+        int err;
 
         gk20a_dbg_fn("");
 
-        vgpu_get_attribute(platform->virt_handle,
+        err = vgpu_get_attribute(platform->virt_handle,
+                        TEGRA_VGPU_ATTRIB_CACHELINE_SIZE,
+                        &gr->cacheline_size);
+        err |= vgpu_get_attribute(platform->virt_handle,
+                        TEGRA_VGPU_ATTRIB_COMPTAGS_PER_CACHELINE,
+                        &gr->comptags_per_cacheline);
+        err |= vgpu_get_attribute(platform->virt_handle,
+                        TEGRA_VGPU_ATTRIB_SLICES_PER_LTC,
+                        &gr->slices_per_ltc);
+        err |= vgpu_get_attribute(platform->virt_handle,
                         TEGRA_VGPU_ATTRIB_COMPTAG_LINES, &max_comptag_lines);
+        if (err) {
+                dev_err(dev_from_gk20a(g), "failed to get ctags atributes\n");
+                return -ENXIO;
+        }
+
         if (max_comptag_lines < 2)
                 return -ENXIO;
 
@@ -46,8 +61,23 @@ static int vgpu_ltc_init_comptags(struct gk20a *g, struct gr_gk20a *gr)
         return 0;
 }
 
+static void vgpu_ltc_init_fs_state(struct gk20a *g)
+{
+        struct gk20a_platform *platform = gk20a_get_platform(g->dev);
+        u32 ltc_count = 0;
+        int err;
+
+        gk20a_dbg_fn("");
+
+        err = vgpu_get_attribute(platform->virt_handle,
+                        TEGRA_VGPU_ATTRIB_LTC_COUNT, &ltc_count);
+        WARN_ON(err);
+        g->ltc_count = ltc_count;
+}
+
 void vgpu_init_ltc_ops(struct gpu_ops *gops)
 {
         gops->ltc.determine_L2_size_bytes = vgpu_determine_L2_size_bytes;
         gops->ltc.init_comptags = vgpu_ltc_init_comptags;
+        gops->ltc.init_fs_state = vgpu_ltc_init_fs_state;
 }