drm/amdgpu: add core driver (v4)

This adds the non-asic specific core driver code.

v2: remove extra kconfig option
v3: implement minor fixes from Fengguang Wu
v4: fix cast in amdgpu_ucode.c

Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Jammy Zhou <Jammy.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 72 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gds.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gds.h
new file mode 100644
index 000000000000..c3f4e85594ff
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gds.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2014 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __AMDGPU_GDS_H__
+#define __AMDGPU_GDS_H__
+
+/* Because TTM request that alloacted buffer should be PAGE_SIZE aligned,
+ * we should report GDS/GWS/OA size as PAGE_SIZE aligned
+ * */
+#define AMDGPU_GDS_SHIFT        2
+#define AMDGPU_GWS_SHIFT        PAGE_SHIFT
+#define AMDGPU_OA_SHIFT         PAGE_SHIFT
+
+#define AMDGPU_PL_GDS           TTM_PL_PRIV0
+#define AMDGPU_PL_GWS           TTM_PL_PRIV1
+#define AMDGPU_PL_OA            TTM_PL_PRIV2
+
+#define AMDGPU_PL_FLAG_GDS              TTM_PL_FLAG_PRIV0
+#define AMDGPU_PL_FLAG_GWS              TTM_PL_FLAG_PRIV1
+#define AMDGPU_PL_FLAG_OA               TTM_PL_FLAG_PRIV2
+
+struct amdgpu_ring;
+struct amdgpu_bo;
+
+struct amdgpu_gds_asic_info {
+        uint32_t        total_size;
+        uint32_t        gfx_partition_size;
+        uint32_t        cs_partition_size;
+};
+
+struct amdgpu_gds {
+        struct amdgpu_gds_asic_info     mem;
+        struct amdgpu_gds_asic_info     gws;
+        struct amdgpu_gds_asic_info     oa;
+        /* At present, GDS, GWS and OA resources for gfx (graphics) 
+         * is always pre-allocated and available for graphics operation. 
+         * Such resource is shared between all gfx clients.
+         * TODO: move this operation to user space
+         * */
+        struct amdgpu_bo*               gds_gfx_bo;
+        struct amdgpu_bo*               gws_gfx_bo;
+        struct amdgpu_bo*               oa_gfx_bo;
+};
+
+struct amdgpu_gds_reg_offset {
+        uint32_t        mem_base;
+        uint32_t        mem_size;
+        uint32_t        gws;
+        uint32_t        oa;
+};
+
+#endif /* __AMDGPU_GDS_H__ */