1/*
  2 * Copyright 2018 Advanced Micro Devices, Inc.
  3 *
  4 * Permission is hereby granted, free of charge, to any person obtaining a
  5 * copy of this software and associated documentation files (the "Software"),
  6 * to deal in the Software without restriction, including without limitation
  7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  8 * and/or sell copies of the Software, and to permit persons to whom the
  9 * Software is furnished to do so, subject to the following conditions:
 10 *
 11 * The above copyright notice and this permission notice shall be included in
 12 * all copies or substantial portions of the Software.
 13 *
 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 20 * OTHER DEALINGS IN THE SOFTWARE.
 21 *
 22 */
 23
 24#ifndef __AMDGPU_SDMA_H__
 25#define __AMDGPU_SDMA_H__
 26
 27/* max number of IP instances */
 28#define AMDGPU_MAX_SDMA_INSTANCES		8
 29
 30enum amdgpu_sdma_irq {
 31	AMDGPU_SDMA_IRQ_INSTANCE0  = 0,
 32	AMDGPU_SDMA_IRQ_INSTANCE1,
 33	AMDGPU_SDMA_IRQ_INSTANCE2,
 34	AMDGPU_SDMA_IRQ_INSTANCE3,
 35	AMDGPU_SDMA_IRQ_INSTANCE4,
 36	AMDGPU_SDMA_IRQ_INSTANCE5,
 37	AMDGPU_SDMA_IRQ_INSTANCE6,
 38	AMDGPU_SDMA_IRQ_INSTANCE7,
 39	AMDGPU_SDMA_IRQ_LAST
 40};
 41
 42struct amdgpu_sdma_instance {
 43	/* SDMA firmware */
 44	const struct firmware	*fw;
 45	uint32_t		fw_version;
 46	uint32_t		feature_version;
 47
 48	struct amdgpu_ring	ring;
 49	struct amdgpu_ring	page;
 50	bool			burst_nop;
 51};
 52
 53struct amdgpu_sdma {
 54	struct amdgpu_sdma_instance instance[AMDGPU_MAX_SDMA_INSTANCES];
 55	struct amdgpu_irq_src	trap_irq;
 56	struct amdgpu_irq_src	illegal_inst_irq;
 57	struct amdgpu_irq_src	ecc_irq;
 58	int			num_instances;
 59	uint32_t                    srbm_soft_reset;
 60	bool			has_page_queue;
 61	struct ras_common_if	*ras_if;
 62};
 63
 64/*
 65 * Provided by hw blocks that can move/clear data.  e.g., gfx or sdma
 66 * But currently, we use sdma to move data.
 67 */
 68struct amdgpu_buffer_funcs {
 69	/* maximum bytes in a single operation */
 70	uint32_t	copy_max_bytes;
 71
 72	/* number of dw to reserve per operation */
 73	unsigned	copy_num_dw;
 74
 75	/* used for buffer migration */
 76	void (*emit_copy_buffer)(struct amdgpu_ib *ib,
 77				 /* src addr in bytes */
 78				 uint64_t src_offset,
 79				 /* dst addr in bytes */
 80				 uint64_t dst_offset,
 81				 /* number of byte to transfer */
 82				 uint32_t byte_count);
 83
 84	/* maximum bytes in a single operation */
 85	uint32_t	fill_max_bytes;
 86
 87	/* number of dw to reserve per operation */
 88	unsigned	fill_num_dw;
 89
 90	/* used for buffer clearing */
 91	void (*emit_fill_buffer)(struct amdgpu_ib *ib,
 92				 /* value to write to memory */
 93				 uint32_t src_data,
 94				 /* dst addr in bytes */
 95				 uint64_t dst_offset,
 96				 /* number of byte to fill */
 97				 uint32_t byte_count);
 98};
 99
100#define amdgpu_emit_copy_buffer(adev, ib, s, d, b) (adev)->mman.buffer_funcs->emit_copy_buffer((ib),  (s), (d), (b))
101#define amdgpu_emit_fill_buffer(adev, ib, s, d, b) (adev)->mman.buffer_funcs->emit_fill_buffer((ib), (s), (d), (b))
102
103struct amdgpu_sdma_instance *
104amdgpu_sdma_get_instance_from_ring(struct amdgpu_ring *ring);
105int amdgpu_sdma_get_index_from_ring(struct amdgpu_ring *ring, uint32_t *index);
106uint64_t amdgpu_sdma_get_csa_mc_addr(struct amdgpu_ring *ring, unsigned vmid);
107#endif