1 files changed, 89 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/fb_gm20b.c b/drivers/gpu/nvgpu/gm20b/fb_gm20b.c
new file mode 100644
index 00000000..6df3d401
--- /dev/null
+++ b/drivers/gpu/nvgpu/gm20b/fb_gm20b.c
@@ -0,0 +1,89 @@
+/*
+ * GM20B GPC MMU
+ *
+ * Copyright (c) 2014, 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,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/types.h>
+
+#include "gk20a/gk20a.h"
+#include "gk20a/kind_gk20a.h"
+
+#include "hw_fb_gm20b.h"
+#include "hw_top_gm20b.h"
+#include "hw_gmmu_gm20b.h"
+
+static void fb_gm20b_init_fs_state(struct gk20a *g)
+{
+        gk20a_dbg_info("initialize gm20b fb");
+
+        gk20a_writel(g, fb_fbhub_num_active_ltcs_r(),
+                        g->ltc_count);
+}
+
+static void gm20b_init_uncompressed_kind_map(void)
+{
+        gk20a_init_uncompressed_kind_map();
+
+        gk20a_uc_kind_map[gmmu_pte_kind_s8_v()] =
+        gk20a_uc_kind_map[gmmu_pte_kind_s8_2s_v()] =
+                gmmu_pte_kind_s8_v();
+}
+
+static bool gm20b_kind_supported(u8 k)
+{
+        return (k >= gmmu_pte_kind_s8_v() &&
+                 k <= gmmu_pte_kind_s8_2s_v());
+}
+
+static bool gm20b_kind_z(u8 k)
+{
+        return (k >= gmmu_pte_kind_s8_v() &&
+                 k <= gmmu_pte_kind_s8_2s_v());
+}
+
+static bool gm20b_kind_compressible(u8 k)
+{
+        return (k >= gmmu_pte_kind_s8_v() &&
+                 k <= gmmu_pte_kind_s8_2s_v());
+}
+
+static bool gm20b_kind_zbc(u8 k)
+{
+        return (k >= gmmu_pte_kind_s8_v() &&
+                 k <= gmmu_pte_kind_s8_2s_v());
+}
+
+void gm20b_init_kind_attr(void)
+{
+        u16 k;
+
+        gk20a_init_kind_attr();
+
+        for (k = 0; k < 256; k++) {
+                if (gm20b_kind_supported((u8)k))
+                        gk20a_kind_attr[k] |= GK20A_KIND_ATTR_SUPPORTED;
+                if (gm20b_kind_compressible((u8)k))
+                        gk20a_kind_attr[k] |= GK20A_KIND_ATTR_COMPRESSIBLE;
+                if (gm20b_kind_z((u8)k))
+                        gk20a_kind_attr[k] |= GK20A_KIND_ATTR_Z;
+                if (gm20b_kind_zbc((u8)k))
+                        gk20a_kind_attr[k] |= GK20A_KIND_ATTR_ZBC;
+        }
+}
+
+void gm20b_init_fb(struct gpu_ops *gops)
+{
+        gops->fb.init_fs_state = fb_gm20b_init_fs_state;
+        gm20b_init_uncompressed_kind_map();
+        gm20b_init_kind_attr();
+}