452 lines
12 KiB
C
452 lines
12 KiB
C
/*
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* Copyright 2014 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include <linux/printk.h>
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#include <linux/slab.h>
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#include "kfd_priv.h"
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#include "kfd_mqd_manager.h"
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#include "cik_regs.h"
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#include "cik_structs.h"
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static inline struct cik_mqd *get_mqd(void *mqd)
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{
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return (struct cik_mqd *)mqd;
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}
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static int init_mqd(struct mqd_manager *mm, void **mqd,
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struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
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struct queue_properties *q)
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{
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uint64_t addr;
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struct cik_mqd *m;
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int retval;
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BUG_ON(!mm || !q || !mqd);
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pr_debug("kfd: In func %s\n", __func__);
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retval = kfd_gtt_sa_allocate(mm->dev, sizeof(struct cik_mqd),
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mqd_mem_obj);
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if (retval != 0)
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return -ENOMEM;
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m = (struct cik_mqd *) (*mqd_mem_obj)->cpu_ptr;
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addr = (*mqd_mem_obj)->gpu_addr;
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memset(m, 0, ALIGN(sizeof(struct cik_mqd), 256));
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m->header = 0xC0310800;
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m->compute_pipelinestat_enable = 1;
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m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF;
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m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF;
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m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF;
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m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF;
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/*
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* Make sure to use the last queue state saved on mqd when the cp
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* reassigns the queue, so when queue is switched on/off (e.g over
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* subscription or quantum timeout) the context will be consistent
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*/
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m->cp_hqd_persistent_state =
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DEFAULT_CP_HQD_PERSISTENT_STATE | PRELOAD_REQ;
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m->cp_mqd_control = MQD_CONTROL_PRIV_STATE_EN;
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m->cp_mqd_base_addr_lo = lower_32_bits(addr);
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m->cp_mqd_base_addr_hi = upper_32_bits(addr);
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m->cp_hqd_ib_control = DEFAULT_MIN_IB_AVAIL_SIZE | IB_ATC_EN;
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/* Although WinKFD writes this, I suspect it should not be necessary */
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m->cp_hqd_ib_control = IB_ATC_EN | DEFAULT_MIN_IB_AVAIL_SIZE;
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m->cp_hqd_quantum = QUANTUM_EN | QUANTUM_SCALE_1MS |
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QUANTUM_DURATION(10);
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/*
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* Pipe Priority
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* Identifies the pipe relative priority when this queue is connected
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* to the pipeline. The pipe priority is against the GFX pipe and HP3D.
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* In KFD we are using a fixed pipe priority set to CS_MEDIUM.
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* 0 = CS_LOW (typically below GFX)
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* 1 = CS_MEDIUM (typically between HP3D and GFX
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* 2 = CS_HIGH (typically above HP3D)
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*/
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m->cp_hqd_pipe_priority = 1;
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m->cp_hqd_queue_priority = 15;
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if (q->format == KFD_QUEUE_FORMAT_AQL)
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m->cp_hqd_iq_rptr = AQL_ENABLE;
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*mqd = m;
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if (gart_addr != NULL)
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*gart_addr = addr;
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retval = mm->update_mqd(mm, m, q);
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return retval;
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}
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static int init_mqd_sdma(struct mqd_manager *mm, void **mqd,
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struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
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struct queue_properties *q)
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{
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int retval;
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struct cik_sdma_rlc_registers *m;
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BUG_ON(!mm || !mqd || !mqd_mem_obj);
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retval = kfd_gtt_sa_allocate(mm->dev,
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sizeof(struct cik_sdma_rlc_registers),
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mqd_mem_obj);
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if (retval != 0)
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return -ENOMEM;
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m = (struct cik_sdma_rlc_registers *) (*mqd_mem_obj)->cpu_ptr;
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memset(m, 0, sizeof(struct cik_sdma_rlc_registers));
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*mqd = m;
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if (gart_addr != NULL)
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*gart_addr = (*mqd_mem_obj)->gpu_addr;
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retval = mm->update_mqd(mm, m, q);
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return retval;
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}
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static void uninit_mqd(struct mqd_manager *mm, void *mqd,
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struct kfd_mem_obj *mqd_mem_obj)
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{
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BUG_ON(!mm || !mqd);
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kfd_gtt_sa_free(mm->dev, mqd_mem_obj);
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}
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static void uninit_mqd_sdma(struct mqd_manager *mm, void *mqd,
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struct kfd_mem_obj *mqd_mem_obj)
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{
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BUG_ON(!mm || !mqd);
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kfd_gtt_sa_free(mm->dev, mqd_mem_obj);
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}
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static int load_mqd(struct mqd_manager *mm, void *mqd, uint32_t pipe_id,
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uint32_t queue_id, uint32_t __user *wptr)
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{
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return mm->dev->kfd2kgd->hqd_load
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(mm->dev->kgd, mqd, pipe_id, queue_id, wptr);
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}
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static int load_mqd_sdma(struct mqd_manager *mm, void *mqd,
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uint32_t pipe_id, uint32_t queue_id,
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uint32_t __user *wptr)
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{
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return mm->dev->kfd2kgd->hqd_sdma_load(mm->dev->kgd, mqd);
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}
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static int update_mqd(struct mqd_manager *mm, void *mqd,
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struct queue_properties *q)
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{
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struct cik_mqd *m;
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BUG_ON(!mm || !q || !mqd);
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pr_debug("kfd: In func %s\n", __func__);
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m = get_mqd(mqd);
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m->cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE |
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DEFAULT_MIN_AVAIL_SIZE | PQ_ATC_EN;
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/*
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* Calculating queue size which is log base 2 of actual queue size -1
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* dwords and another -1 for ffs
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*/
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m->cp_hqd_pq_control |= ffs(q->queue_size / sizeof(unsigned int))
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- 1 - 1;
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m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
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m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
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m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
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m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
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m->cp_hqd_pq_doorbell_control = DOORBELL_EN |
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DOORBELL_OFFSET(q->doorbell_off);
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m->cp_hqd_vmid = q->vmid;
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if (q->format == KFD_QUEUE_FORMAT_AQL) {
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m->cp_hqd_pq_control |= NO_UPDATE_RPTR;
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}
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m->cp_hqd_active = 0;
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q->is_active = false;
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if (q->queue_size > 0 &&
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q->queue_address != 0 &&
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q->queue_percent > 0) {
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m->cp_hqd_active = 1;
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q->is_active = true;
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}
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return 0;
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}
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static int update_mqd_sdma(struct mqd_manager *mm, void *mqd,
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struct queue_properties *q)
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{
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struct cik_sdma_rlc_registers *m;
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BUG_ON(!mm || !mqd || !q);
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m = get_sdma_mqd(mqd);
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m->sdma_rlc_rb_cntl =
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SDMA_RB_SIZE((ffs(q->queue_size / sizeof(unsigned int)))) |
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SDMA_RB_VMID(q->vmid) |
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SDMA_RPTR_WRITEBACK_ENABLE |
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SDMA_RPTR_WRITEBACK_TIMER(6);
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m->sdma_rlc_rb_base = lower_32_bits(q->queue_address >> 8);
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m->sdma_rlc_rb_base_hi = upper_32_bits(q->queue_address >> 8);
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m->sdma_rlc_rb_rptr_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
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m->sdma_rlc_rb_rptr_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
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m->sdma_rlc_doorbell = SDMA_OFFSET(q->doorbell_off) | SDMA_DB_ENABLE;
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m->sdma_rlc_virtual_addr = q->sdma_vm_addr;
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m->sdma_engine_id = q->sdma_engine_id;
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m->sdma_queue_id = q->sdma_queue_id;
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q->is_active = false;
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if (q->queue_size > 0 &&
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q->queue_address != 0 &&
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q->queue_percent > 0) {
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m->sdma_rlc_rb_cntl |= SDMA_RB_ENABLE;
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q->is_active = true;
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}
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return 0;
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}
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static int destroy_mqd(struct mqd_manager *mm, void *mqd,
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enum kfd_preempt_type type,
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unsigned int timeout, uint32_t pipe_id,
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uint32_t queue_id)
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{
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return mm->dev->kfd2kgd->hqd_destroy(mm->dev->kgd, type, timeout,
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pipe_id, queue_id);
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}
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/*
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* preempt type here is ignored because there is only one way
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* to preempt sdma queue
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*/
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static int destroy_mqd_sdma(struct mqd_manager *mm, void *mqd,
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enum kfd_preempt_type type,
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unsigned int timeout, uint32_t pipe_id,
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uint32_t queue_id)
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{
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return mm->dev->kfd2kgd->hqd_sdma_destroy(mm->dev->kgd, mqd, timeout);
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}
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static bool is_occupied(struct mqd_manager *mm, void *mqd,
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uint64_t queue_address, uint32_t pipe_id,
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uint32_t queue_id)
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{
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return mm->dev->kfd2kgd->hqd_is_occupied(mm->dev->kgd, queue_address,
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pipe_id, queue_id);
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}
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static bool is_occupied_sdma(struct mqd_manager *mm, void *mqd,
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uint64_t queue_address, uint32_t pipe_id,
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uint32_t queue_id)
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{
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return mm->dev->kfd2kgd->hqd_sdma_is_occupied(mm->dev->kgd, mqd);
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}
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/*
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* HIQ MQD Implementation, concrete implementation for HIQ MQD implementation.
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* The HIQ queue in Kaveri is using the same MQD structure as all the user mode
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* queues but with different initial values.
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*/
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static int init_mqd_hiq(struct mqd_manager *mm, void **mqd,
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struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
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struct queue_properties *q)
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{
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uint64_t addr;
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struct cik_mqd *m;
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int retval;
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BUG_ON(!mm || !q || !mqd || !mqd_mem_obj);
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pr_debug("kfd: In func %s\n", __func__);
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retval = kfd_gtt_sa_allocate(mm->dev, sizeof(struct cik_mqd),
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mqd_mem_obj);
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if (retval != 0)
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return -ENOMEM;
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m = (struct cik_mqd *) (*mqd_mem_obj)->cpu_ptr;
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addr = (*mqd_mem_obj)->gpu_addr;
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memset(m, 0, ALIGN(sizeof(struct cik_mqd), 256));
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m->header = 0xC0310800;
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m->compute_pipelinestat_enable = 1;
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m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF;
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m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF;
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m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF;
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m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF;
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m->cp_hqd_persistent_state = DEFAULT_CP_HQD_PERSISTENT_STATE |
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PRELOAD_REQ;
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m->cp_hqd_quantum = QUANTUM_EN | QUANTUM_SCALE_1MS |
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QUANTUM_DURATION(10);
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m->cp_mqd_control = MQD_CONTROL_PRIV_STATE_EN;
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m->cp_mqd_base_addr_lo = lower_32_bits(addr);
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m->cp_mqd_base_addr_hi = upper_32_bits(addr);
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m->cp_hqd_ib_control = DEFAULT_MIN_IB_AVAIL_SIZE;
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/*
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* Pipe Priority
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* Identifies the pipe relative priority when this queue is connected
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* to the pipeline. The pipe priority is against the GFX pipe and HP3D.
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* In KFD we are using a fixed pipe priority set to CS_MEDIUM.
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* 0 = CS_LOW (typically below GFX)
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* 1 = CS_MEDIUM (typically between HP3D and GFX
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* 2 = CS_HIGH (typically above HP3D)
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*/
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m->cp_hqd_pipe_priority = 1;
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m->cp_hqd_queue_priority = 15;
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*mqd = m;
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if (gart_addr)
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*gart_addr = addr;
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retval = mm->update_mqd(mm, m, q);
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return retval;
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}
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static int update_mqd_hiq(struct mqd_manager *mm, void *mqd,
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struct queue_properties *q)
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{
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struct cik_mqd *m;
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BUG_ON(!mm || !q || !mqd);
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pr_debug("kfd: In func %s\n", __func__);
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m = get_mqd(mqd);
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m->cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE |
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DEFAULT_MIN_AVAIL_SIZE |
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PRIV_STATE |
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KMD_QUEUE;
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/*
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* Calculating queue size which is log base 2 of actual queue
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* size -1 dwords
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*/
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m->cp_hqd_pq_control |= ffs(q->queue_size / sizeof(unsigned int))
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- 1 - 1;
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m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
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m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
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m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
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m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
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m->cp_hqd_pq_doorbell_control = DOORBELL_EN |
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DOORBELL_OFFSET(q->doorbell_off);
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m->cp_hqd_vmid = q->vmid;
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m->cp_hqd_active = 0;
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q->is_active = false;
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if (q->queue_size > 0 &&
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q->queue_address != 0 &&
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q->queue_percent > 0) {
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m->cp_hqd_active = 1;
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q->is_active = true;
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}
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return 0;
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}
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struct cik_sdma_rlc_registers *get_sdma_mqd(void *mqd)
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{
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struct cik_sdma_rlc_registers *m;
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BUG_ON(!mqd);
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m = (struct cik_sdma_rlc_registers *)mqd;
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return m;
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}
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struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type,
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struct kfd_dev *dev)
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{
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struct mqd_manager *mqd;
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BUG_ON(!dev);
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BUG_ON(type >= KFD_MQD_TYPE_MAX);
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pr_debug("kfd: In func %s\n", __func__);
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mqd = kzalloc(sizeof(struct mqd_manager), GFP_KERNEL);
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if (!mqd)
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return NULL;
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mqd->dev = dev;
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switch (type) {
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case KFD_MQD_TYPE_CP:
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case KFD_MQD_TYPE_COMPUTE:
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mqd->init_mqd = init_mqd;
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mqd->uninit_mqd = uninit_mqd;
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mqd->load_mqd = load_mqd;
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mqd->update_mqd = update_mqd;
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mqd->destroy_mqd = destroy_mqd;
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mqd->is_occupied = is_occupied;
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break;
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case KFD_MQD_TYPE_HIQ:
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mqd->init_mqd = init_mqd_hiq;
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mqd->uninit_mqd = uninit_mqd;
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mqd->load_mqd = load_mqd;
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mqd->update_mqd = update_mqd_hiq;
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mqd->destroy_mqd = destroy_mqd;
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mqd->is_occupied = is_occupied;
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break;
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case KFD_MQD_TYPE_SDMA:
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mqd->init_mqd = init_mqd_sdma;
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mqd->uninit_mqd = uninit_mqd_sdma;
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mqd->load_mqd = load_mqd_sdma;
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mqd->update_mqd = update_mqd_sdma;
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mqd->destroy_mqd = destroy_mqd_sdma;
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mqd->is_occupied = is_occupied_sdma;
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break;
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default:
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kfree(mqd);
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return NULL;
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}
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return mqd;
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}
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