/*
 * Copyright 2019 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.
 *
 */

#include <linux/firmware.h>
#include <linux/module.h>
#include "amdgpu.h"
#include "soc15_common.h"
#include "soc21.h"
#include "gc/gc_11_0_0_offset.h"
#include "gc/gc_11_0_0_sh_mask.h"
#include "gc/gc_11_0_0_default.h"
#include "v11_structs.h"
#include "mes_v11_api_def.h"

MODULE_FIRMWARE("amdgpu/gc_11_0_0_mes.bin");
MODULE_FIRMWARE("amdgpu/gc_11_0_0_mes_2.bin");
MODULE_FIRMWARE("amdgpu/gc_11_0_0_mes1.bin");
MODULE_FIRMWARE("amdgpu/gc_11_0_1_mes.bin");
MODULE_FIRMWARE("amdgpu/gc_11_0_1_mes_2.bin");
MODULE_FIRMWARE("amdgpu/gc_11_0_1_mes1.bin");
MODULE_FIRMWARE("amdgpu/gc_11_0_2_mes.bin");
MODULE_FIRMWARE("amdgpu/gc_11_0_2_mes_2.bin");
MODULE_FIRMWARE("amdgpu/gc_11_0_2_mes1.bin");
MODULE_FIRMWARE("amdgpu/gc_11_0_3_mes.bin");
MODULE_FIRMWARE("amdgpu/gc_11_0_3_mes_2.bin");
MODULE_FIRMWARE("amdgpu/gc_11_0_3_mes1.bin");
MODULE_FIRMWARE("amdgpu/gc_11_0_4_mes.bin");
MODULE_FIRMWARE("amdgpu/gc_11_0_4_mes_2.bin");
MODULE_FIRMWARE("amdgpu/gc_11_0_4_mes1.bin");

static int mes_v11_0_hw_fini(void *handle);
static int mes_v11_0_kiq_hw_init(struct amdgpu_device *adev);
static int mes_v11_0_kiq_hw_fini(struct amdgpu_device *adev);

#define MES_EOP_SIZE   2048

static void mes_v11_0_ring_set_wptr(struct amdgpu_ring *ring)
{
	struct amdgpu_device *adev = ring->adev;

	if (ring->use_doorbell) {
		atomic64_set((atomic64_t *)ring->wptr_cpu_addr,
			     ring->wptr);
		WDOORBELL64(ring->doorbell_index, ring->wptr);
	} else {
		BUG();
	}
}

static u64 mes_v11_0_ring_get_rptr(struct amdgpu_ring *ring)
{
	return *ring->rptr_cpu_addr;
}

static u64 mes_v11_0_ring_get_wptr(struct amdgpu_ring *ring)
{
	u64 wptr;

	if (ring->use_doorbell)
		wptr = atomic64_read((atomic64_t *)ring->wptr_cpu_addr);
	else
		BUG();
	return wptr;
}

static const struct amdgpu_ring_funcs mes_v11_0_ring_funcs = {
	.type = AMDGPU_RING_TYPE_MES,
	.align_mask = 1,
	.nop = 0,
	.support_64bit_ptrs = true,
	.get_rptr = mes_v11_0_ring_get_rptr,
	.get_wptr = mes_v11_0_ring_get_wptr,
	.set_wptr = mes_v11_0_ring_set_wptr,
	.insert_nop = amdgpu_ring_insert_nop,
};

static int mes_v11_0_submit_pkt_and_poll_completion(struct amdgpu_mes *mes,
						    void *pkt, int size,
						    int api_status_off)
{
	int ndw = size / 4;
	signed long r;
	union MESAPI__ADD_QUEUE *x_pkt = pkt;
	struct MES_API_STATUS *api_status;
	struct amdgpu_device *adev = mes->adev;
	struct amdgpu_ring *ring = &mes->ring;
	unsigned long flags;
	signed long timeout = adev->usec_timeout;

	if (amdgpu_emu_mode) {
		timeout *= 100;
	} else if (amdgpu_sriov_vf(adev)) {
		/* Worst case in sriov where all other 15 VF timeout, each VF needs about 600ms */
		timeout = 15 * 600 * 1000;
	}
	BUG_ON(size % 4 != 0);

	spin_lock_irqsave(&mes->ring_lock, flags);
	if (amdgpu_ring_alloc(ring, ndw)) {
		spin_unlock_irqrestore(&mes->ring_lock, flags);
		return -ENOMEM;
	}

	api_status = (struct MES_API_STATUS *)((char *)pkt + api_status_off);
	api_status->api_completion_fence_addr = mes->ring.fence_drv.gpu_addr;
	api_status->api_completion_fence_value = ++mes->ring.fence_drv.sync_seq;

	amdgpu_ring_write_multiple(ring, pkt, ndw);
	amdgpu_ring_commit(ring);
	spin_unlock_irqrestore(&mes->ring_lock, flags);

	DRM_DEBUG("MES msg=%d was emitted\n", x_pkt->header.opcode);

	r = amdgpu_fence_wait_polling(ring, ring->fence_drv.sync_seq,
		      timeout);
	if (r < 1) {
		DRM_ERROR("MES failed to response msg=%d\n",
			  x_pkt->header.opcode);
		return -ETIMEDOUT;
	}

	return 0;
}

static int convert_to_mes_queue_type(int queue_type)
{
	if (queue_type == AMDGPU_RING_TYPE_GFX)
		return MES_QUEUE_TYPE_GFX;
	else if (queue_type == AMDGPU_RING_TYPE_COMPUTE)
		return MES_QUEUE_TYPE_COMPUTE;
	else if (queue_type == AMDGPU_RING_TYPE_SDMA)
		return MES_QUEUE_TYPE_SDMA;
	else
		BUG();
	return -1;
}

static int mes_v11_0_add_hw_queue(struct amdgpu_mes *mes,
				  struct mes_add_queue_input *input)
{
	struct amdgpu_device *adev = mes->adev;
	union MESAPI__ADD_QUEUE mes_add_queue_pkt;
	struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0];
	uint32_t vm_cntx_cntl = hub->vm_cntx_cntl;

	memset(&mes_add_queue_pkt, 0, sizeof(mes_add_queue_pkt));

	mes_add_queue_pkt.header.type = MES_API_TYPE_SCHEDULER;
	mes_add_queue_pkt.header.opcode = MES_SCH_API_ADD_QUEUE;
	mes_add_queue_pkt.header.dwsize = API_FRAME_SIZE_IN_DWORDS;

	mes_add_queue_pkt.process_id = input->process_id;
	mes_add_queue_pkt.page_table_base_addr = input->page_table_base_addr;
	mes_add_queue_pkt.process_va_start = input->process_va_start;
	mes_add_queue_pkt.process_va_end = input->process_va_end;
	mes_add_queue_pkt.process_quantum = input->process_quantum;
	mes_add_queue_pkt.process_context_addr = input->process_context_addr;
	mes_add_queue_pkt.gang_quantum = input->gang_quantum;
	mes_add_queue_pkt.gang_context_addr = input->gang_context_addr;
	mes_add_queue_pkt.inprocess_gang_priority =
		input->inprocess_gang_priority;
	mes_add_queue_pkt.gang_global_priority_level =
		input->gang_global_priority_level;
	mes_add_queue_pkt.doorbell_offset = input->doorbell_offset;
	mes_add_queue_pkt.mqd_addr = input->mqd_addr;

	if (((adev->mes.sched_version & AMDGPU_MES_API_VERSION_MASK) >>
			AMDGPU_MES_API_VERSION_SHIFT) >= 2)
		mes_add_queue_pkt.wptr_addr = input->wptr_mc_addr;
	else
		mes_add_queue_pkt.wptr_addr = input->wptr_addr;

	mes_add_queue_pkt.queue_type =
		convert_to_mes_queue_type(input->queue_type);
	mes_add_queue_pkt.paging = input->paging;
	mes_add_queue_pkt.vm_context_cntl = vm_cntx_cntl;
	mes_add_queue_pkt.gws_base = input->gws_base;
	mes_add_queue_pkt.gws_size = input->gws_size;
	mes_add_queue_pkt.trap_handler_addr = input->tba_addr;
	mes_add_queue_pkt.tma_addr = input->tma_addr;
	mes_add_queue_pkt.is_kfd_process = input->is_kfd_process;

	/* For KFD, gds_size is re-used for queue size (needed in MES for AQL queues) */
	mes_add_queue_pkt.is_aql_queue = input->is_aql_queue;
	mes_add_queue_pkt.gds_size = input->queue_size;

	if (!(((adev->mes.sched_version & AMDGPU_MES_VERSION_MASK) >= 4) &&
		  (adev->ip_versions[GC_HWIP][0] >= IP_VERSION(11, 0, 0)) &&
		  (adev->ip_versions[GC_HWIP][0] <= IP_VERSION(11, 0, 3))))
		mes_add_queue_pkt.trap_en = 1;

	/* For KFD, gds_size is re-used for queue size (needed in MES for AQL queues) */
	mes_add_queue_pkt.is_aql_queue = input->is_aql_queue;
	mes_add_queue_pkt.gds_size = input->queue_size;

	return mes_v11_0_submit_pkt_and_poll_completion(mes,
			&mes_add_queue_pkt, sizeof(mes_add_queue_pkt),
			offsetof(union MESAPI__ADD_QUEUE, api_status));
}

static int mes_v11_0_remove_hw_queue(struct amdgpu_mes *mes,
				     struct mes_remove_queue_input *input)
{
	union MESAPI__REMOVE_QUEUE mes_remove_queue_pkt;

	memset(&mes_remove_queue_pkt, 0, sizeof(mes_remove_queue_pkt));

	mes_remove_queue_pkt.header.type = MES_API_TYPE_SCHEDULER;
	mes_remove_queue_pkt.header.opcode = MES_SCH_API_REMOVE_QUEUE;
	mes_remove_queue_pkt.header.dwsize = API_FRAME_SIZE_IN_DWORDS;

	mes_remove_queue_pkt.doorbell_offset = input->doorbell_offset;
	mes_remove_queue_pkt.gang_context_addr = input->gang_context_addr;

	return mes_v11_0_submit_pkt_and_poll_completion(mes,
			&mes_remove_queue_pkt, sizeof(mes_remove_queue_pkt),
			offsetof(union MESAPI__REMOVE_QUEUE, api_status));
}

static int mes_v11_0_unmap_legacy_queue(struct amdgpu_mes *mes,
			struct mes_unmap_legacy_queue_input *input)
{
	union MESAPI__REMOVE_QUEUE mes_remove_queue_pkt;

	memset(&mes_remove_queue_pkt, 0, sizeof(mes_remove_queue_pkt));

	mes_remove_queue_pkt.header.type = MES_API_TYPE_SCHEDULER;
	mes_remove_queue_pkt.header.opcode = MES_SCH_API_REMOVE_QUEUE;
	mes_remove_queue_pkt.header.dwsize = API_FRAME_SIZE_IN_DWORDS;

	mes_remove_queue_pkt.doorbell_offset = input->doorbell_offset;
	mes_remove_queue_pkt.gang_context_addr = 0;

	mes_remove_queue_pkt.pipe_id = input->pipe_id;
	mes_remove_queue_pkt.queue_id = input->queue_id;

	if (input->action == PREEMPT_QUEUES_NO_UNMAP) {
		mes_remove_queue_pkt.preempt_legacy_gfx_queue = 1;
		mes_remove_queue_pkt.tf_addr = input->trail_fence_addr;
		mes_remove_queue_pkt.tf_data =
			lower_32_bits(input->trail_fence_data);
	} else {
		mes_remove_queue_pkt.unmap_legacy_queue = 1;
		mes_remove_queue_pkt.queue_type =
			convert_to_mes_queue_type(input->queue_type);
	}

	return mes_v11_0_submit_pkt_and_poll_completion(mes,
			&mes_remove_queue_pkt, sizeof(mes_remove_queue_pkt),
			offsetof(union MESAPI__REMOVE_QUEUE, api_status));
}

static int mes_v11_0_suspend_gang(struct amdgpu_mes *mes,
				  struct mes_suspend_gang_input *input)
{
	return 0;
}

static int mes_v11_0_resume_gang(struct amdgpu_mes *mes,
				 struct mes_resume_gang_input *input)
{
	return 0;
}

static int mes_v11_0_query_sched_status(struct amdgpu_mes *mes)
{
	union MESAPI__QUERY_MES_STATUS mes_status_pkt;

	memset(&mes_status_pkt, 0, sizeof(mes_status_pkt));

	mes_status_pkt.header.type = MES_API_TYPE_SCHEDULER;
	mes_status_pkt.header.opcode = MES_SCH_API_QUERY_SCHEDULER_STATUS;
	mes_status_pkt.header.dwsize = API_FRAME_SIZE_IN_DWORDS;

	return mes_v11_0_submit_pkt_and_poll_completion(mes,
			&mes_status_pkt, sizeof(mes_status_pkt),
			offsetof(union MESAPI__QUERY_MES_STATUS, api_status));
}

static int mes_v11_0_misc_op(struct amdgpu_mes *mes,
			     struct mes_misc_op_input *input)
{
	union MESAPI__MISC misc_pkt;

	memset(&misc_pkt, 0, sizeof(misc_pkt));

	misc_pkt.header.type = MES_API_TYPE_SCHEDULER;
	misc_pkt.header.opcode = MES_SCH_API_MISC;
	misc_pkt.header.dwsize = API_FRAME_SIZE_IN_DWORDS;

	switch (input->op) {
	case MES_MISC_OP_READ_REG:
		misc_pkt.opcode = MESAPI_MISC__READ_REG;
		misc_pkt.read_reg.reg_offset = input->read_reg.reg_offset;
		misc_pkt.read_reg.buffer_addr = input->read_reg.buffer_addr;
		break;
	case MES_MISC_OP_WRITE_REG:
		misc_pkt.opcode = MESAPI_MISC__WRITE_REG;
		misc_pkt.write_reg.reg_offset = input->write_reg.reg_offset;
		misc_pkt.write_reg.reg_value = input->write_reg.reg_value;
		break;
	case MES_MISC_OP_WRM_REG_WAIT:
		misc_pkt.opcode = MESAPI_MISC__WAIT_REG_MEM;
		misc_pkt.wait_reg_mem.op = WRM_OPERATION__WAIT_REG_MEM;
		misc_pkt.wait_reg_mem.reference = input->wrm_reg.ref;
		misc_pkt.wait_reg_mem.mask = input->wrm_reg.mask;
		misc_pkt.wait_reg_mem.reg_offset1 = input->wrm_reg.reg0;
		misc_pkt.wait_reg_mem.reg_offset2 = 0;
		break;
	case MES_MISC_OP_WRM_REG_WR_WAIT:
		misc_pkt.opcode = MESAPI_MISC__WAIT_REG_MEM;
		misc_pkt.wait_reg_mem.op = WRM_OPERATION__WR_WAIT_WR_REG;
		misc_pkt.wait_reg_mem.reference = input->wrm_reg.ref;
		misc_pkt.wait_reg_mem.mask = input->wrm_reg.mask;
		misc_pkt.wait_reg_mem.reg_offset1 = input->wrm_reg.reg0;
		misc_pkt.wait_reg_mem.reg_offset2 = input->wrm_reg.reg1;
		break;
	default:
		DRM_ERROR("unsupported misc op (%d) \n", input->op);
		return -EINVAL;
	}

	return mes_v11_0_submit_pkt_and_poll_completion(mes,
			&misc_pkt, sizeof(misc_pkt),
			offsetof(union MESAPI__MISC, api_status));
}

static int mes_v11_0_set_hw_resources(struct amdgpu_mes *mes)
{
	int i;
	struct amdgpu_device *adev = mes->adev;
	union MESAPI_SET_HW_RESOURCES mes_set_hw_res_pkt;

	memset(&mes_set_hw_res_pkt, 0, sizeof(mes_set_hw_res_pkt));

	mes_set_hw_res_pkt.header.type = MES_API_TYPE_SCHEDULER;
	mes_set_hw_res_pkt.header.opcode = MES_SCH_API_SET_HW_RSRC;
	mes_set_hw_res_pkt.header.dwsize = API_FRAME_SIZE_IN_DWORDS;

	mes_set_hw_res_pkt.vmid_mask_mmhub = mes->vmid_mask_mmhub;
	mes_set_hw_res_pkt.vmid_mask_gfxhub = mes->vmid_mask_gfxhub;
	mes_set_hw_res_pkt.gds_size = adev->gds.gds_size;
	mes_set_hw_res_pkt.paging_vmid = 0;
	mes_set_hw_res_pkt.g_sch_ctx_gpu_mc_ptr = mes->sch_ctx_gpu_addr;
	mes_set_hw_res_pkt.query_status_fence_gpu_mc_ptr =
		mes->query_status_fence_gpu_addr;

	for (i = 0; i < MAX_COMPUTE_PIPES; i++)
		mes_set_hw_res_pkt.compute_hqd_mask[i] =
			mes->compute_hqd_mask[i];

	for (i = 0; i < MAX_GFX_PIPES; i++)
		mes_set_hw_res_pkt.gfx_hqd_mask[i] = mes->gfx_hqd_mask[i];

	for (i = 0; i < MAX_SDMA_PIPES; i++)
		mes_set_hw_res_pkt.sdma_hqd_mask[i] = mes->sdma_hqd_mask[i];

	for (i = 0; i < AMD_PRIORITY_NUM_LEVELS; i++)
		mes_set_hw_res_pkt.aggregated_doorbells[i] =
			mes->aggregated_doorbells[i];

	for (i = 0; i < 5; i++) {
		mes_set_hw_res_pkt.gc_base[i] = adev->reg_offset[GC_HWIP][0][i];
		mes_set_hw_res_pkt.mmhub_base[i] =
				adev->reg_offset[MMHUB_HWIP][0][i];
		mes_set_hw_res_pkt.osssys_base[i] =
		adev->reg_offset[OSSSYS_HWIP][0][i];
	}

	mes_set_hw_res_pkt.disable_reset = 1;
	mes_set_hw_res_pkt.disable_mes_log = 1;
	mes_set_hw_res_pkt.use_different_vmid_compute = 1;
	mes_set_hw_res_pkt.enable_reg_active_poll = 1;
	mes_set_hw_res_pkt.oversubscription_timer = 50;

	return mes_v11_0_submit_pkt_and_poll_completion(mes,
			&mes_set_hw_res_pkt, sizeof(mes_set_hw_res_pkt),
			offsetof(union MESAPI_SET_HW_RESOURCES, api_status));
}

static void mes_v11_0_init_aggregated_doorbell(struct amdgpu_mes *mes)
{
	struct amdgpu_device *adev = mes->adev;
	uint32_t data;

	data = RREG32_SOC15(GC, 0, regCP_MES_DOORBELL_CONTROL1);
	data &= ~(CP_MES_DOORBELL_CONTROL1__DOORBELL_OFFSET_MASK |
		  CP_MES_DOORBELL_CONTROL1__DOORBELL_EN_MASK |
		  CP_MES_DOORBELL_CONTROL1__DOORBELL_HIT_MASK);
	data |= mes->aggregated_doorbells[AMDGPU_MES_PRIORITY_LEVEL_LOW] <<
		CP_MES_DOORBELL_CONTROL1__DOORBELL_OFFSET__SHIFT;
	data |= 1 << CP_MES_DOORBELL_CONTROL1__DOORBELL_EN__SHIFT;
	WREG32_SOC15(GC, 0, regCP_MES_DOORBELL_CONTROL1, data);

	data = RREG32_SOC15(GC, 0, regCP_MES_DOORBELL_CONTROL2);
	data &= ~(CP_MES_DOORBELL_CONTROL2__DOORBELL_OFFSET_MASK |
		  CP_MES_DOORBELL_CONTROL2__DOORBELL_EN_MASK |
		  CP_MES_DOORBELL_CONTROL2__DOORBELL_HIT_MASK);
	data |= mes->aggregated_doorbells[AMDGPU_MES_PRIORITY_LEVEL_NORMAL] <<
		CP_MES_DOORBELL_CONTROL2__DOORBELL_OFFSET__SHIFT;
	data |= 1 << CP_MES_DOORBELL_CONTROL2__DOORBELL_EN__SHIFT;
	WREG32_SOC15(GC, 0, regCP_MES_DOORBELL_CONTROL2, data);

	data = RREG32_SOC15(GC, 0, regCP_MES_DOORBELL_CONTROL3);
	data &= ~(CP_MES_DOORBELL_CONTROL3__DOORBELL_OFFSET_MASK |
		  CP_MES_DOORBELL_CONTROL3__DOORBELL_EN_MASK |
		  CP_MES_DOORBELL_CONTROL3__DOORBELL_HIT_MASK);
	data |= mes->aggregated_doorbells[AMDGPU_MES_PRIORITY_LEVEL_MEDIUM] <<
		CP_MES_DOORBELL_CONTROL3__DOORBELL_OFFSET__SHIFT;
	data |= 1 << CP_MES_DOORBELL_CONTROL3__DOORBELL_EN__SHIFT;
	WREG32_SOC15(GC, 0, regCP_MES_DOORBELL_CONTROL3, data);

	data = RREG32_SOC15(GC, 0, regCP_MES_DOORBELL_CONTROL4);
	data &= ~(CP_MES_DOORBELL_CONTROL4__DOORBELL_OFFSET_MASK |
		  CP_MES_DOORBELL_CONTROL4__DOORBELL_EN_MASK |
		  CP_MES_DOORBELL_CONTROL4__DOORBELL_HIT_MASK);
	data |= mes->aggregated_doorbells[AMDGPU_MES_PRIORITY_LEVEL_HIGH] <<
		CP_MES_DOORBELL_CONTROL4__DOORBELL_OFFSET__SHIFT;
	data |= 1 << CP_MES_DOORBELL_CONTROL4__DOORBELL_EN__SHIFT;
	WREG32_SOC15(GC, 0, regCP_MES_DOORBELL_CONTROL4, data);

	data = RREG32_SOC15(GC, 0, regCP_MES_DOORBELL_CONTROL5);
	data &= ~(CP_MES_DOORBELL_CONTROL5__DOORBELL_OFFSET_MASK |
		  CP_MES_DOORBELL_CONTROL5__DOORBELL_EN_MASK |
		  CP_MES_DOORBELL_CONTROL5__DOORBELL_HIT_MASK);
	data |= mes->aggregated_doorbells[AMDGPU_MES_PRIORITY_LEVEL_REALTIME] <<
		CP_MES_DOORBELL_CONTROL5__DOORBELL_OFFSET__SHIFT;
	data |= 1 << CP_MES_DOORBELL_CONTROL5__DOORBELL_EN__SHIFT;
	WREG32_SOC15(GC, 0, regCP_MES_DOORBELL_CONTROL5, data);

	data = 1 << CP_HQD_GFX_CONTROL__DB_UPDATED_MSG_EN__SHIFT;
	WREG32_SOC15(GC, 0, regCP_HQD_GFX_CONTROL, data);
}

static const struct amdgpu_mes_funcs mes_v11_0_funcs = {
	.add_hw_queue = mes_v11_0_add_hw_queue,
	.remove_hw_queue = mes_v11_0_remove_hw_queue,
	.unmap_legacy_queue = mes_v11_0_unmap_legacy_queue,
	.suspend_gang = mes_v11_0_suspend_gang,
	.resume_gang = mes_v11_0_resume_gang,
	.misc_op = mes_v11_0_misc_op,
};

static int mes_v11_0_allocate_ucode_buffer(struct amdgpu_device *adev,
					   enum admgpu_mes_pipe pipe)
{
	int r;
	const struct mes_firmware_header_v1_0 *mes_hdr;
	const __le32 *fw_data;
	unsigned fw_size;

	mes_hdr = (const struct mes_firmware_header_v1_0 *)
		adev->mes.fw[pipe]->data;

	fw_data = (const __le32 *)(adev->mes.fw[pipe]->data +
		   le32_to_cpu(mes_hdr->mes_ucode_offset_bytes));
	fw_size = le32_to_cpu(mes_hdr->mes_ucode_size_bytes);

	r = amdgpu_bo_create_reserved(adev, fw_size,
				      PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM,
				      &adev->mes.ucode_fw_obj[pipe],
				      &adev->mes.ucode_fw_gpu_addr[pipe],
				      (void **)&adev->mes.ucode_fw_ptr[pipe]);
	if (r) {
		dev_err(adev->dev, "(%d) failed to create mes fw bo\n", r);
		return r;
	}

	memcpy(adev->mes.ucode_fw_ptr[pipe], fw_data, fw_size);

	amdgpu_bo_kunmap(adev->mes.ucode_fw_obj[pipe]);
	amdgpu_bo_unreserve(adev->mes.ucode_fw_obj[pipe]);

	return 0;
}

static int mes_v11_0_allocate_ucode_data_buffer(struct amdgpu_device *adev,
						enum admgpu_mes_pipe pipe)
{
	int r;
	const struct mes_firmware_header_v1_0 *mes_hdr;
	const __le32 *fw_data;
	unsigned fw_size;

	mes_hdr = (const struct mes_firmware_header_v1_0 *)
		adev->mes.fw[pipe]->data;

	fw_data = (const __le32 *)(adev->mes.fw[pipe]->data +
		   le32_to_cpu(mes_hdr->mes_ucode_data_offset_bytes));
	fw_size = le32_to_cpu(mes_hdr->mes_ucode_data_size_bytes);

	r = amdgpu_bo_create_reserved(adev, fw_size,
				      64 * 1024, AMDGPU_GEM_DOMAIN_VRAM,
				      &adev->mes.data_fw_obj[pipe],
				      &adev->mes.data_fw_gpu_addr[pipe],
				      (void **)&adev->mes.data_fw_ptr[pipe]);
	if (r) {
		dev_err(adev->dev, "(%d) failed to create mes data fw bo\n", r);
		return r;
	}

	memcpy(adev->mes.data_fw_ptr[pipe], fw_data, fw_size);

	amdgpu_bo_kunmap(adev->mes.data_fw_obj[pipe]);
	amdgpu_bo_unreserve(adev->mes.data_fw_obj[pipe]);

	return 0;
}

static void mes_v11_0_free_ucode_buffers(struct amdgpu_device *adev,
					 enum admgpu_mes_pipe pipe)
{
	amdgpu_bo_free_kernel(&adev->mes.data_fw_obj[pipe],
			      &adev->mes.data_fw_gpu_addr[pipe],
			      (void **)&adev->mes.data_fw_ptr[pipe]);

	amdgpu_bo_free_kernel(&adev->mes.ucode_fw_obj[pipe],
			      &adev->mes.ucode_fw_gpu_addr[pipe],
			      (void **)&adev->mes.ucode_fw_ptr[pipe]);
}

static void mes_v11_0_enable(struct amdgpu_device *adev, bool enable)
{
	uint64_t ucode_addr;
	uint32_t pipe, data = 0;

	if (enable) {
		data = RREG32_SOC15(GC, 0, regCP_MES_CNTL);
		data = REG_SET_FIELD(data, CP_MES_CNTL, MES_PIPE0_RESET, 1);
		data = REG_SET_FIELD(data, CP_MES_CNTL,
			     MES_PIPE1_RESET, adev->enable_mes_kiq ? 1 : 0);
		WREG32_SOC15(GC, 0, regCP_MES_CNTL, data);

		mutex_lock(&adev->srbm_mutex);
		for (pipe = 0; pipe < AMDGPU_MAX_MES_PIPES; pipe++) {
			if (!adev->enable_mes_kiq &&
			    pipe == AMDGPU_MES_KIQ_PIPE)
				continue;

			soc21_grbm_select(adev, 3, pipe, 0, 0);

			ucode_addr = adev->mes.uc_start_addr[pipe] >> 2;
			WREG32_SOC15(GC, 0, regCP_MES_PRGRM_CNTR_START,
				     lower_32_bits(ucode_addr));
			WREG32_SOC15(GC, 0, regCP_MES_PRGRM_CNTR_START_HI,
				     upper_32_bits(ucode_addr));
		}
		soc21_grbm_select(adev, 0, 0, 0, 0);
		mutex_unlock(&adev->srbm_mutex);

		/* unhalt MES and activate pipe0 */
		data = REG_SET_FIELD(0, CP_MES_CNTL, MES_PIPE0_ACTIVE, 1);
		data = REG_SET_FIELD(data, CP_MES_CNTL, MES_PIPE1_ACTIVE,
				     adev->enable_mes_kiq ? 1 : 0);
		WREG32_SOC15(GC, 0, regCP_MES_CNTL, data);

		if (amdgpu_emu_mode)
			msleep(100);
		else
			udelay(50);
	} else {
		data = RREG32_SOC15(GC, 0, regCP_MES_CNTL);
		data = REG_SET_FIELD(data, CP_MES_CNTL, MES_PIPE0_ACTIVE, 0);
		data = REG_SET_FIELD(data, CP_MES_CNTL, MES_PIPE1_ACTIVE, 0);
		data = REG_SET_FIELD(data, CP_MES_CNTL,
				     MES_INVALIDATE_ICACHE, 1);
		data = REG_SET_FIELD(data, CP_MES_CNTL, MES_PIPE0_RESET, 1);
		data = REG_SET_FIELD(data, CP_MES_CNTL, MES_PIPE1_RESET,
				     adev->enable_mes_kiq ? 1 : 0);
		data = REG_SET_FIELD(data, CP_MES_CNTL, MES_HALT, 1);
		WREG32_SOC15(GC, 0, regCP_MES_CNTL, data);
	}
}

/* This function is for backdoor MES firmware */
static int mes_v11_0_load_microcode(struct amdgpu_device *adev,
				    enum admgpu_mes_pipe pipe, bool prime_icache)
{
	int r;
	uint32_t data;
	uint64_t ucode_addr;

	mes_v11_0_enable(adev, false);

	if (!adev->mes.fw[pipe])
		return -EINVAL;

	r = mes_v11_0_allocate_ucode_buffer(adev, pipe);
	if (r)
		return r;

	r = mes_v11_0_allocate_ucode_data_buffer(adev, pipe);
	if (r) {
		mes_v11_0_free_ucode_buffers(adev, pipe);
		return r;
	}

	mutex_lock(&adev->srbm_mutex);
	/* me=3, pipe=0, queue=0 */
	soc21_grbm_select(adev, 3, pipe, 0, 0);

	WREG32_SOC15(GC, 0, regCP_MES_IC_BASE_CNTL, 0);

	/* set ucode start address */
	ucode_addr = adev->mes.uc_start_addr[pipe] >> 2;
	WREG32_SOC15(GC, 0, regCP_MES_PRGRM_CNTR_START,
		     lower_32_bits(ucode_addr));
	WREG32_SOC15(GC, 0, regCP_MES_PRGRM_CNTR_START_HI,
		     upper_32_bits(ucode_addr));

	/* set ucode fimrware address */
	WREG32_SOC15(GC, 0, regCP_MES_IC_BASE_LO,
		     lower_32_bits(adev->mes.ucode_fw_gpu_addr[pipe]));
	WREG32_SOC15(GC, 0, regCP_MES_IC_BASE_HI,
		     upper_32_bits(adev->mes.ucode_fw_gpu_addr[pipe]));

	/* set ucode instruction cache boundary to 2M-1 */
	WREG32_SOC15(GC, 0, regCP_MES_MIBOUND_LO, 0x1FFFFF);

	/* set ucode data firmware address */
	WREG32_SOC15(GC, 0, regCP_MES_MDBASE_LO,
		     lower_32_bits(adev->mes.data_fw_gpu_addr[pipe]));
	WREG32_SOC15(GC, 0, regCP_MES_MDBASE_HI,
		     upper_32_bits(adev->mes.data_fw_gpu_addr[pipe]));

	/* Set 0x3FFFF (256K-1) to CP_MES_MDBOUND_LO */
	WREG32_SOC15(GC, 0, regCP_MES_MDBOUND_LO, 0x3FFFF);

	if (prime_icache) {
		/* invalidate ICACHE */
		data = RREG32_SOC15(GC, 0, regCP_MES_IC_OP_CNTL);
		data = REG_SET_FIELD(data, CP_MES_IC_OP_CNTL, PRIME_ICACHE, 0);
		data = REG_SET_FIELD(data, CP_MES_IC_OP_CNTL, INVALIDATE_CACHE, 1);
		WREG32_SOC15(GC, 0, regCP_MES_IC_OP_CNTL, data);

		/* prime the ICACHE. */
		data = RREG32_SOC15(GC, 0, regCP_MES_IC_OP_CNTL);
		data = REG_SET_FIELD(data, CP_MES_IC_OP_CNTL, PRIME_ICACHE, 1);
		WREG32_SOC15(GC, 0, regCP_MES_IC_OP_CNTL, data);
	}

	soc21_grbm_select(adev, 0, 0, 0, 0);
	mutex_unlock(&adev->srbm_mutex);

	return 0;
}

static int mes_v11_0_allocate_eop_buf(struct amdgpu_device *adev,
				      enum admgpu_mes_pipe pipe)
{
	int r;
	u32 *eop;

	r = amdgpu_bo_create_reserved(adev, MES_EOP_SIZE, PAGE_SIZE,
			      AMDGPU_GEM_DOMAIN_GTT,
			      &adev->mes.eop_gpu_obj[pipe],
			      &adev->mes.eop_gpu_addr[pipe],
			      (void **)&eop);
	if (r) {
		dev_warn(adev->dev, "(%d) create EOP bo failed\n", r);
		return r;
	}

	memset(eop, 0,
	       adev->mes.eop_gpu_obj[pipe]->tbo.base.size);

	amdgpu_bo_kunmap(adev->mes.eop_gpu_obj[pipe]);
	amdgpu_bo_unreserve(adev->mes.eop_gpu_obj[pipe]);

	return 0;
}

static int mes_v11_0_mqd_init(struct amdgpu_ring *ring)
{
	struct v11_compute_mqd *mqd = ring->mqd_ptr;
	uint64_t hqd_gpu_addr, wb_gpu_addr, eop_base_addr;
	uint32_t tmp;

	mqd->header = 0xC0310800;
	mqd->compute_pipelinestat_enable = 0x00000001;
	mqd->compute_static_thread_mgmt_se0 = 0xffffffff;
	mqd->compute_static_thread_mgmt_se1 = 0xffffffff;
	mqd->compute_static_thread_mgmt_se2 = 0xffffffff;
	mqd->compute_static_thread_mgmt_se3 = 0xffffffff;
	mqd->compute_misc_reserved = 0x00000007;

	eop_base_addr = ring->eop_gpu_addr >> 8;

	/* set the EOP size, register value is 2^(EOP_SIZE+1) dwords */
	tmp = regCP_HQD_EOP_CONTROL_DEFAULT;
	tmp = REG_SET_FIELD(tmp, CP_HQD_EOP_CONTROL, EOP_SIZE,
			(order_base_2(MES_EOP_SIZE / 4) - 1));

	mqd->cp_hqd_eop_base_addr_lo = lower_32_bits(eop_base_addr);
	mqd->cp_hqd_eop_base_addr_hi = upper_32_bits(eop_base_addr);
	mqd->cp_hqd_eop_control = tmp;

	/* disable the queue if it's active */
	ring->wptr = 0;
	mqd->cp_hqd_pq_rptr = 0;
	mqd->cp_hqd_pq_wptr_lo = 0;
	mqd->cp_hqd_pq_wptr_hi = 0;

	/* set the pointer to the MQD */
	mqd->cp_mqd_base_addr_lo = ring->mqd_gpu_addr & 0xfffffffc;
	mqd->cp_mqd_base_addr_hi = upper_32_bits(ring->mqd_gpu_addr);

	/* set MQD vmid to 0 */
	tmp = regCP_MQD_CONTROL_DEFAULT;
	tmp = REG_SET_FIELD(tmp, CP_MQD_CONTROL, VMID, 0);
	mqd->cp_mqd_control = tmp;

	/* set the pointer to the HQD, this is similar CP_RB0_BASE/_HI */
	hqd_gpu_addr = ring->gpu_addr >> 8;
	mqd->cp_hqd_pq_base_lo = lower_32_bits(hqd_gpu_addr);
	mqd->cp_hqd_pq_base_hi = upper_32_bits(hqd_gpu_addr);

	/* set the wb address whether it's enabled or not */
	wb_gpu_addr = ring->rptr_gpu_addr;
	mqd->cp_hqd_pq_rptr_report_addr_lo = wb_gpu_addr & 0xfffffffc;
	mqd->cp_hqd_pq_rptr_report_addr_hi =
		upper_32_bits(wb_gpu_addr) & 0xffff;

	/* only used if CP_PQ_WPTR_POLL_CNTL.CP_PQ_WPTR_POLL_CNTL__EN_MASK=1 */
	wb_gpu_addr = ring->wptr_gpu_addr;
	mqd->cp_hqd_pq_wptr_poll_addr_lo = wb_gpu_addr & 0xfffffff8;
	mqd->cp_hqd_pq_wptr_poll_addr_hi = upper_32_bits(wb_gpu_addr) & 0xffff;

	/* set up the HQD, this is similar to CP_RB0_CNTL */
	tmp = regCP_HQD_PQ_CONTROL_DEFAULT;
	tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_CONTROL, QUEUE_SIZE,
			    (order_base_2(ring->ring_size / 4) - 1));
	tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_CONTROL, RPTR_BLOCK_SIZE,
			    ((order_base_2(AMDGPU_GPU_PAGE_SIZE / 4) - 1) << 8));
	tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_CONTROL, UNORD_DISPATCH, 1);
	tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_CONTROL, TUNNEL_DISPATCH, 0);
	tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_CONTROL, PRIV_STATE, 1);
	tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_CONTROL, KMD_QUEUE, 1);
	tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_CONTROL, NO_UPDATE_RPTR, 1);
	mqd->cp_hqd_pq_control = tmp;

	/* enable doorbell */
	tmp = 0;
	if (ring->use_doorbell) {
		tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_DOORBELL_CONTROL,
				    DOORBELL_OFFSET, ring->doorbell_index);
		tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_DOORBELL_CONTROL,
				    DOORBELL_EN, 1);
		tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_DOORBELL_CONTROL,
				    DOORBELL_SOURCE, 0);
		tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_DOORBELL_CONTROL,
				    DOORBELL_HIT, 0);
	}
	else
		tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_DOORBELL_CONTROL,
				    DOORBELL_EN, 0);
	mqd->cp_hqd_pq_doorbell_control = tmp;

	mqd->cp_hqd_vmid = 0;
	/* activate the queue */
	mqd->cp_hqd_active = 1;

	tmp = regCP_HQD_PERSISTENT_STATE_DEFAULT;
	tmp = REG_SET_FIELD(tmp, CP_HQD_PERSISTENT_STATE,
			    PRELOAD_SIZE, 0x55);
	mqd->cp_hqd_persistent_state = tmp;

	mqd->cp_hqd_ib_control = regCP_HQD_IB_CONTROL_DEFAULT;
	mqd->cp_hqd_iq_timer = regCP_HQD_IQ_TIMER_DEFAULT;
	mqd->cp_hqd_quantum = regCP_HQD_QUANTUM_DEFAULT;

	return 0;
}

static void mes_v11_0_queue_init_register(struct amdgpu_ring *ring)
{
	struct v11_compute_mqd *mqd = ring->mqd_ptr;
	struct amdgpu_device *adev = ring->adev;
	uint32_t data = 0;

	mutex_lock(&adev->srbm_mutex);
	soc21_grbm_select(adev, 3, ring->pipe, 0, 0);

	/* set CP_HQD_VMID.VMID = 0. */
	data = RREG32_SOC15(GC, 0, regCP_HQD_VMID);
	data = REG_SET_FIELD(data, CP_HQD_VMID, VMID, 0);
	WREG32_SOC15(GC, 0, regCP_HQD_VMID, data);

	/* set CP_HQD_PQ_DOORBELL_CONTROL.DOORBELL_EN=0 */
	data = RREG32_SOC15(GC, 0, regCP_HQD_PQ_DOORBELL_CONTROL);
	data = REG_SET_FIELD(data, CP_HQD_PQ_DOORBELL_CONTROL,
			     DOORBELL_EN, 0);
	WREG32_SOC15(GC, 0, regCP_HQD_PQ_DOORBELL_CONTROL, data);

	/* set CP_MQD_BASE_ADDR/HI with the MQD base address */
	WREG32_SOC15(GC, 0, regCP_MQD_BASE_ADDR, mqd->cp_mqd_base_addr_lo);
	WREG32_SOC15(GC, 0, regCP_MQD_BASE_ADDR_HI, mqd->cp_mqd_base_addr_hi);

	/* set CP_MQD_CONTROL.VMID=0 */
	data = RREG32_SOC15(GC, 0, regCP_MQD_CONTROL);
	data = REG_SET_FIELD(data, CP_MQD_CONTROL, VMID, 0);
	WREG32_SOC15(GC, 0, regCP_MQD_CONTROL, 0);

	/* set CP_HQD_PQ_BASE/HI with the ring buffer base address */
	WREG32_SOC15(GC, 0, regCP_HQD_PQ_BASE, mqd->cp_hqd_pq_base_lo);
	WREG32_SOC15(GC, 0, regCP_HQD_PQ_BASE_HI, mqd->cp_hqd_pq_base_hi);

	/* set CP_HQD_PQ_RPTR_REPORT_ADDR/HI */
	WREG32_SOC15(GC, 0, regCP_HQD_PQ_RPTR_REPORT_ADDR,
		     mqd->cp_hqd_pq_rptr_report_addr_lo);
	WREG32_SOC15(GC, 0, regCP_HQD_PQ_RPTR_REPORT_ADDR_HI,
		     mqd->cp_hqd_pq_rptr_report_addr_hi);

	/* set CP_HQD_PQ_CONTROL */
	WREG32_SOC15(GC, 0, regCP_HQD_PQ_CONTROL, mqd->cp_hqd_pq_control);

	/* set CP_HQD_PQ_WPTR_POLL_ADDR/HI */
	WREG32_SOC15(GC, 0, regCP_HQD_PQ_WPTR_POLL_ADDR,
		     mqd->cp_hqd_pq_wptr_poll_addr_lo);
	WREG32_SOC15(GC, 0, regCP_HQD_PQ_WPTR_POLL_ADDR_HI,
		     mqd->cp_hqd_pq_wptr_poll_addr_hi);

	/* set CP_HQD_PQ_DOORBELL_CONTROL */
	WREG32_SOC15(GC, 0, regCP_HQD_PQ_DOORBELL_CONTROL,
		     mqd->cp_hqd_pq_doorbell_control);

	/* set CP_HQD_PERSISTENT_STATE.PRELOAD_SIZE=0x53 */
	WREG32_SOC15(GC, 0, regCP_HQD_PERSISTENT_STATE, mqd->cp_hqd_persistent_state);

	/* set CP_HQD_ACTIVE.ACTIVE=1 */
	WREG32_SOC15(GC, 0, regCP_HQD_ACTIVE, mqd->cp_hqd_active);

	soc21_grbm_select(adev, 0, 0, 0, 0);
	mutex_unlock(&adev->srbm_mutex);
}

static int mes_v11_0_kiq_enable_queue(struct amdgpu_device *adev)
{
	struct amdgpu_kiq *kiq = &adev->gfx.kiq;
	struct amdgpu_ring *kiq_ring = &adev->gfx.kiq.ring;
	int r;

	if (!kiq->pmf || !kiq->pmf->kiq_map_queues)
		return -EINVAL;

	r = amdgpu_ring_alloc(kiq_ring, kiq->pmf->map_queues_size);
	if (r) {
		DRM_ERROR("Failed to lock KIQ (%d).\n", r);
		return r;
	}

	kiq->pmf->kiq_map_queues(kiq_ring, &adev->mes.ring);

	r = amdgpu_ring_test_ring(kiq_ring);
	if (r) {
		DRM_ERROR("kfq enable failed\n");
		kiq_ring->sched.ready = false;
	}
	return r;
}

static int mes_v11_0_queue_init(struct amdgpu_device *adev,
				enum admgpu_mes_pipe pipe)
{
	struct amdgpu_ring *ring;
	int r;

	if (pipe == AMDGPU_MES_KIQ_PIPE)
		ring = &adev->gfx.kiq.ring;
	else if (pipe == AMDGPU_MES_SCHED_PIPE)
		ring = &adev->mes.ring;
	else
		BUG();

	if ((pipe == AMDGPU_MES_SCHED_PIPE) &&
	    (amdgpu_in_reset(adev) || adev->in_suspend)) {
		*(ring->wptr_cpu_addr) = 0;
		*(ring->rptr_cpu_addr) = 0;
		amdgpu_ring_clear_ring(ring);
	}

	r = mes_v11_0_mqd_init(ring);
	if (r)
		return r;

	if (pipe == AMDGPU_MES_SCHED_PIPE) {
		r = mes_v11_0_kiq_enable_queue(adev);
		if (r)
			return r;
	} else {
		mes_v11_0_queue_init_register(ring);
	}

	/* get MES scheduler/KIQ versions */
	mutex_lock(&adev->srbm_mutex);
	soc21_grbm_select(adev, 3, pipe, 0, 0);

	if (pipe == AMDGPU_MES_SCHED_PIPE)
		adev->mes.sched_version = RREG32_SOC15(GC, 0, regCP_MES_GP3_LO);
	else if (pipe == AMDGPU_MES_KIQ_PIPE && adev->enable_mes_kiq)
		adev->mes.kiq_version = RREG32_SOC15(GC, 0, regCP_MES_GP3_LO);

	soc21_grbm_select(adev, 0, 0, 0, 0);
	mutex_unlock(&adev->srbm_mutex);

	return 0;
}

static int mes_v11_0_ring_init(struct amdgpu_device *adev)
{
	struct amdgpu_ring *ring;

	ring = &adev->mes.ring;

	ring->funcs = &mes_v11_0_ring_funcs;

	ring->me = 3;
	ring->pipe = 0;
	ring->queue = 0;

	ring->ring_obj = NULL;
	ring->use_doorbell = true;
	ring->doorbell_index = adev->doorbell_index.mes_ring0 << 1;
	ring->eop_gpu_addr = adev->mes.eop_gpu_addr[AMDGPU_MES_SCHED_PIPE];
	ring->no_scheduler = true;
	sprintf(ring->name, "mes_%d.%d.%d", ring->me, ring->pipe, ring->queue);

	return amdgpu_ring_init(adev, ring, 1024, NULL, 0,
				AMDGPU_RING_PRIO_DEFAULT, NULL);
}

static int mes_v11_0_kiq_ring_init(struct amdgpu_device *adev)
{
	struct amdgpu_ring *ring;

	spin_lock_init(&adev->gfx.kiq.ring_lock);

	ring = &adev->gfx.kiq.ring;

	ring->me = 3;
	ring->pipe = 1;
	ring->queue = 0;

	ring->adev = NULL;
	ring->ring_obj = NULL;
	ring->use_doorbell = true;
	ring->doorbell_index = adev->doorbell_index.mes_ring1 << 1;
	ring->eop_gpu_addr = adev->mes.eop_gpu_addr[AMDGPU_MES_KIQ_PIPE];
	ring->no_scheduler = true;
	sprintf(ring->name, "mes_kiq_%d.%d.%d",
		ring->me, ring->pipe, ring->queue);

	return amdgpu_ring_init(adev, ring, 1024, NULL, 0,
				AMDGPU_RING_PRIO_DEFAULT, NULL);
}

static int mes_v11_0_mqd_sw_init(struct amdgpu_device *adev,
				 enum admgpu_mes_pipe pipe)
{
	int r, mqd_size = sizeof(struct v11_compute_mqd);
	struct amdgpu_ring *ring;

	if (pipe == AMDGPU_MES_KIQ_PIPE)
		ring = &adev->gfx.kiq.ring;
	else if (pipe == AMDGPU_MES_SCHED_PIPE)
		ring = &adev->mes.ring;
	else
		BUG();

	if (ring->mqd_obj)
		return 0;

	r = amdgpu_bo_create_kernel(adev, mqd_size, PAGE_SIZE,
				    AMDGPU_GEM_DOMAIN_GTT, &ring->mqd_obj,
				    &ring->mqd_gpu_addr, &ring->mqd_ptr);
	if (r) {
		dev_warn(adev->dev, "failed to create ring mqd bo (%d)", r);
		return r;
	}

	memset(ring->mqd_ptr, 0, mqd_size);

	/* prepare MQD backup */
	adev->mes.mqd_backup[pipe] = kmalloc(mqd_size, GFP_KERNEL);
	if (!adev->mes.mqd_backup[pipe])
		dev_warn(adev->dev,
			 "no memory to create MQD backup for ring %s\n",
			 ring->name);

	return 0;
}

static int mes_v11_0_sw_init(void *handle)
{
	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
	int pipe, r;

	adev->mes.adev = adev;
	adev->mes.funcs = &mes_v11_0_funcs;
	adev->mes.kiq_hw_init = &mes_v11_0_kiq_hw_init;
	adev->mes.kiq_hw_fini = &mes_v11_0_kiq_hw_fini;

	r = amdgpu_mes_init(adev);
	if (r)
		return r;

	for (pipe = 0; pipe < AMDGPU_MAX_MES_PIPES; pipe++) {
		if (!adev->enable_mes_kiq && pipe == AMDGPU_MES_KIQ_PIPE)
			continue;

		r = mes_v11_0_allocate_eop_buf(adev, pipe);
		if (r)
			return r;

		r = mes_v11_0_mqd_sw_init(adev, pipe);
		if (r)
			return r;
	}

	if (adev->enable_mes_kiq) {
		r = mes_v11_0_kiq_ring_init(adev);
		if (r)
			return r;
	}

	r = mes_v11_0_ring_init(adev);
	if (r)
		return r;

	return 0;
}

static int mes_v11_0_sw_fini(void *handle)
{
	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
	int pipe;

	amdgpu_device_wb_free(adev, adev->mes.sch_ctx_offs);
	amdgpu_device_wb_free(adev, adev->mes.query_status_fence_offs);

	for (pipe = 0; pipe < AMDGPU_MAX_MES_PIPES; pipe++) {
		kfree(adev->mes.mqd_backup[pipe]);

		amdgpu_bo_free_kernel(&adev->mes.eop_gpu_obj[pipe],
				      &adev->mes.eop_gpu_addr[pipe],
				      NULL);
		amdgpu_ucode_release(&adev->mes.fw[pipe]);
	}

	amdgpu_bo_free_kernel(&adev->gfx.kiq.ring.mqd_obj,
			      &adev->gfx.kiq.ring.mqd_gpu_addr,
			      &adev->gfx.kiq.ring.mqd_ptr);

	amdgpu_bo_free_kernel(&adev->mes.ring.mqd_obj,
			      &adev->mes.ring.mqd_gpu_addr,
			      &adev->mes.ring.mqd_ptr);

	amdgpu_ring_fini(&adev->gfx.kiq.ring);
	amdgpu_ring_fini(&adev->mes.ring);

	if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {
		mes_v11_0_free_ucode_buffers(adev, AMDGPU_MES_KIQ_PIPE);
		mes_v11_0_free_ucode_buffers(adev, AMDGPU_MES_SCHED_PIPE);
	}

	amdgpu_mes_fini(adev);
	return 0;
}

static void mes_v11_0_kiq_dequeue_sched(struct amdgpu_device *adev)
{
	uint32_t data;
	int i;

	mutex_lock(&adev->srbm_mutex);
	soc21_grbm_select(adev, 3, AMDGPU_MES_SCHED_PIPE, 0, 0);

	/* disable the queue if it's active */
	if (RREG32_SOC15(GC, 0, regCP_HQD_ACTIVE) & 1) {
		WREG32_SOC15(GC, 0, regCP_HQD_DEQUEUE_REQUEST, 1);
		for (i = 0; i < adev->usec_timeout; i++) {
			if (!(RREG32_SOC15(GC, 0, regCP_HQD_ACTIVE) & 1))
				break;
			udelay(1);
		}
	}
	data = RREG32_SOC15(GC, 0, regCP_HQD_PQ_DOORBELL_CONTROL);
	data = REG_SET_FIELD(data, CP_HQD_PQ_DOORBELL_CONTROL,
				DOORBELL_EN, 0);
	data = REG_SET_FIELD(data, CP_HQD_PQ_DOORBELL_CONTROL,
				DOORBELL_HIT, 1);
	WREG32_SOC15(GC, 0, regCP_HQD_PQ_DOORBELL_CONTROL, data);

	WREG32_SOC15(GC, 0, regCP_HQD_PQ_DOORBELL_CONTROL, 0);

	WREG32_SOC15(GC, 0, regCP_HQD_PQ_WPTR_LO, 0);
	WREG32_SOC15(GC, 0, regCP_HQD_PQ_WPTR_HI, 0);
	WREG32_SOC15(GC, 0, regCP_HQD_PQ_RPTR, 0);

	soc21_grbm_select(adev, 0, 0, 0, 0);
	mutex_unlock(&adev->srbm_mutex);

	adev->mes.ring.sched.ready = false;
}

static void mes_v11_0_kiq_setting(struct amdgpu_ring *ring)
{
	uint32_t tmp;
	struct amdgpu_device *adev = ring->adev;

	/* tell RLC which is KIQ queue */
	tmp = RREG32_SOC15(GC, 0, regRLC_CP_SCHEDULERS);
	tmp &= 0xffffff00;
	tmp |= (ring->me << 5) | (ring->pipe << 3) | (ring->queue);
	WREG32_SOC15(GC, 0, regRLC_CP_SCHEDULERS, tmp);
	tmp |= 0x80;
	WREG32_SOC15(GC, 0, regRLC_CP_SCHEDULERS, tmp);
}

static int mes_v11_0_kiq_hw_init(struct amdgpu_device *adev)
{
	int r = 0;

	if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {

		r = mes_v11_0_load_microcode(adev, AMDGPU_MES_SCHED_PIPE, false);
		if (r) {
			DRM_ERROR("failed to load MES fw, r=%d\n", r);
			return r;
		}

		r = mes_v11_0_load_microcode(adev, AMDGPU_MES_KIQ_PIPE, true);
		if (r) {
			DRM_ERROR("failed to load MES kiq fw, r=%d\n", r);
			return r;
		}

	}

	mes_v11_0_enable(adev, true);

	mes_v11_0_kiq_setting(&adev->gfx.kiq.ring);

	r = mes_v11_0_queue_init(adev, AMDGPU_MES_KIQ_PIPE);
	if (r)
		goto failure;

	return r;

failure:
	mes_v11_0_hw_fini(adev);
	return r;
}

static int mes_v11_0_kiq_hw_fini(struct amdgpu_device *adev)
{
	if (adev->mes.ring.sched.ready)
		mes_v11_0_kiq_dequeue_sched(adev);

	mes_v11_0_enable(adev, false);
	return 0;
}

static int mes_v11_0_hw_init(void *handle)
{
	int r;
	struct amdgpu_device *adev = (struct amdgpu_device *)handle;

	if (!adev->enable_mes_kiq) {
		if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {
			r = mes_v11_0_load_microcode(adev,
					     AMDGPU_MES_SCHED_PIPE, true);
			if (r) {
				DRM_ERROR("failed to MES fw, r=%d\n", r);
				return r;
			}
		}

		mes_v11_0_enable(adev, true);
	}

	r = mes_v11_0_queue_init(adev, AMDGPU_MES_SCHED_PIPE);
	if (r)
		goto failure;

	r = mes_v11_0_set_hw_resources(&adev->mes);
	if (r)
		goto failure;

	mes_v11_0_init_aggregated_doorbell(&adev->mes);

	r = mes_v11_0_query_sched_status(&adev->mes);
	if (r) {
		DRM_ERROR("MES is busy\n");
		goto failure;
	}

	/*
	 * Disable KIQ ring usage from the driver once MES is enabled.
	 * MES uses KIQ ring exclusively so driver cannot access KIQ ring
	 * with MES enabled.
	 */
	adev->gfx.kiq.ring.sched.ready = false;
	adev->mes.ring.sched.ready = true;

	return 0;

failure:
	mes_v11_0_hw_fini(adev);
	return r;
}

static int mes_v11_0_hw_fini(void *handle)
{
	return 0;
}

static int mes_v11_0_suspend(void *handle)
{
	int r;
	struct amdgpu_device *adev = (struct amdgpu_device *)handle;

	r = amdgpu_mes_suspend(adev);
	if (r)
		return r;

	return mes_v11_0_hw_fini(adev);
}

static int mes_v11_0_resume(void *handle)
{
	int r;
	struct amdgpu_device *adev = (struct amdgpu_device *)handle;

	r = mes_v11_0_hw_init(adev);
	if (r)
		return r;

	return amdgpu_mes_resume(adev);
}

static int mes_v11_0_early_init(void *handle)
{
	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
	int pipe, r;

	for (pipe = 0; pipe < AMDGPU_MAX_MES_PIPES; pipe++) {
		if (!adev->enable_mes_kiq && pipe == AMDGPU_MES_KIQ_PIPE)
			continue;
		r = amdgpu_mes_init_microcode(adev, pipe);
		if (r)
			return r;
	}

	return 0;
}

static int mes_v11_0_late_init(void *handle)
{
	struct amdgpu_device *adev = (struct amdgpu_device *)handle;

	/* it's only intended for use in mes_self_test case, not for s0ix and reset */
	if (!amdgpu_in_reset(adev) && !adev->in_s0ix && !adev->in_suspend &&
	    (adev->ip_versions[GC_HWIP][0] != IP_VERSION(11, 0, 3)))
		amdgpu_mes_self_test(adev);

	return 0;
}

static const struct amd_ip_funcs mes_v11_0_ip_funcs = {
	.name = "mes_v11_0",
	.early_init = mes_v11_0_early_init,
	.late_init = mes_v11_0_late_init,
	.sw_init = mes_v11_0_sw_init,
	.sw_fini = mes_v11_0_sw_fini,
	.hw_init = mes_v11_0_hw_init,
	.hw_fini = mes_v11_0_hw_fini,
	.suspend = mes_v11_0_suspend,
	.resume = mes_v11_0_resume,
};

const struct amdgpu_ip_block_version mes_v11_0_ip_block = {
	.type = AMD_IP_BLOCK_TYPE_MES,
	.major = 11,
	.minor = 0,
	.rev = 0,
	.funcs = &mes_v11_0_ip_funcs,
};
