drm/amdgpu: add VPE 6.1.0 support

Add skeleton driver code. (Ray)
Add initial support for Video Processing Engine. (Lang)

Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 86 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vpe.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vpe.h
new file mode 100644
index 000000000000..010fa7f308fd
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vpe.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2022 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_VPE_H__
+#define __AMDGPU_VPE_H__
+
+#include "amdgpu_ring.h"
+#include "amdgpu_irq.h"
+#include "vpe_6_1_fw_if.h"
+
+struct amdgpu_vpe;
+
+struct vpe_funcs {
+	uint32_t (*get_reg_offset)(struct amdgpu_vpe *vpe, uint32_t inst, uint32_t offset);
+	void (*set_regs)(struct amdgpu_vpe *vpe);
+	int (*irq_init)(struct amdgpu_vpe *vpe);
+	int (*init_microcode)(struct amdgpu_vpe *vpe);
+	int (*load_microcode)(struct amdgpu_vpe *vpe);
+	int (*ring_init)(struct amdgpu_vpe *vpe);
+	int (*ring_start)(struct amdgpu_vpe *vpe);
+	int (*ring_stop)(struct amdgpu_vpe *vpe);
+	int (*ring_fini)(struct amdgpu_vpe *vpe);
+};
+
+struct vpe_regs {
+	uint32_t queue0_rb_rptr_lo;
+	uint32_t queue0_rb_rptr_hi;
+	uint32_t queue0_rb_wptr_lo;
+	uint32_t queue0_rb_wptr_hi;
+	uint32_t queue0_preempt;
+};
+
+struct amdgpu_vpe {
+	struct amdgpu_ring		ring;
+	struct amdgpu_irq_src		trap_irq;
+
+	const struct vpe_funcs		*funcs;
+	struct vpe_regs			regs;
+
+	const struct firmware		*fw;
+	uint32_t			fw_version;
+	uint32_t			feature_version;
+};
+
+int amdgpu_vpe_init_microcode(struct amdgpu_vpe *vpe);
+int amdgpu_vpe_ring_init(struct amdgpu_vpe *vpe);
+int amdgpu_vpe_ring_fini(struct amdgpu_vpe *vpe);
+
+#define vpe_ring_init(vpe) ((vpe)->funcs->ring_init ? (vpe)->funcs->ring_init((vpe)) : 0)
+#define vpe_ring_start(vpe) ((vpe)->funcs->ring_start ? (vpe)->funcs->ring_start((vpe)) : 0)
+#define vpe_ring_stop(vpe) ((vpe)->funcs->ring_stop ? (vpe)->funcs->ring_stop((vpe)) : 0)
+#define vpe_ring_fini(vpe) ((vpe)->funcs->ring_fini ? (vpe)->funcs->ring_fini((vpe)) : 0)
+
+#define vpe_get_reg_offset(vpe, inst, offset) \
+		((vpe)->funcs->get_reg_offset ? (vpe)->funcs->get_reg_offset((vpe), (inst), (offset)) : 0)
+#define vpe_set_regs(vpe) \
+		((vpe)->funcs->set_regs ? (vpe)->funcs->set_regs((vpe)) : 0)
+#define vpe_irq_init(vpe) \
+		((vpe)->funcs->irq_init ? (vpe)->funcs->irq_init((vpe)) : 0)
+#define vpe_init_microcode(vpe) \
+		((vpe)->funcs->init_microcode ? (vpe)->funcs->init_microcode((vpe)) : 0)
+#define vpe_load_microcode(vpe) \
+		((vpe)->funcs->load_microcode ? (vpe)->funcs->load_microcode((vpe)) : 0)
+
+extern const struct amdgpu_ip_block_version vpe_v6_1_ip_block;
+
+#endif