gpu: nvgpu: gp10b: Add replayable pagefault buffer

Add support for replayable fault buffer and enable it.

Bug 1587836

Change-Id: Iee4ba42ab175c0d72d2c041fdb3ac9d845358847
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/661668
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gp10b/rpfb_gp10b.h b/drivers/gpu/nvgpu/gp10b/rpfb_gp10b.h
new file mode 100644
index 00000000..965c9573
--- /dev/null
+++ b/drivers/gpu/nvgpu/gp10b/rpfb_gp10b.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 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,
+ * 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.
+ */
+
+#ifndef RPFB_GP20B_H
+#define RPFB_GP20B_H
+struct gk20a;
+
+#define NV_UVM_FAULT_BUF_SIZE 32
+
+int gp10b_replayable_pagefault_buffer_init(struct gk20a *g);
+u32 gp10b_replayable_pagefault_buffer_get_index(struct gk20a *g);
+u32 gp10b_replayable_pagefault_buffer_put_index(struct gk20a *g);
+bool gp10b_replayable_pagefault_buffer_is_empty(struct gk20a *g);
+bool gp10b_replayable_pagefault_buffer_is_full(struct gk20a *g);
+bool gp10b_replayable_pagefault_buffer_is_overflow(struct gk20a *g);
+void gp10b_replayable_pagefault_buffer_clear_overflow(struct gk20a *g);
+void gp10b_replayable_pagefault_buffer_info(struct gk20a *g);
+void gp10b_replayable_pagefault_buffer_deinit(struct gk20a *g);
+
+#endif