blob: 47243165a082a5221b56fa05929f4f5b46fa8081 [file] [log] [blame]
/*
* 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.
*
*/
#include <linux/printk.h>
#include <linux/slab.h>
#include <linux/mm_types.h>
#include "kfd_priv.h"
#include "kfd_mqd_manager.h"
#include "cik_regs.h"
#include "cik_structs.h"
#include "oss/oss_2_4_sh_mask.h"
static inline struct cik_mqd *get_mqd(void *mqd)
{
return (struct cik_mqd *)mqd;
}
static inline struct cik_sdma_rlc_registers *get_sdma_mqd(void *mqd)
{
return (struct cik_sdma_rlc_registers *)mqd;
}
static void update_cu_mask(struct mqd_manager *mm, void *mqd,
struct queue_properties *q)
{
struct cik_mqd *m;
uint32_t se_mask[4] = {0}; /* 4 is the max # of SEs */
if (q->cu_mask_count == 0)
return;
mqd_symmetrically_map_cu_mask(mm,
q->cu_mask, q->cu_mask_count, se_mask);
m = get_mqd(mqd);
m->compute_static_thread_mgmt_se0 = se_mask[0];
m->compute_static_thread_mgmt_se1 = se_mask[1];
m->compute_static_thread_mgmt_se2 = se_mask[2];
m->compute_static_thread_mgmt_se3 = se_mask[3];
pr_debug("Update cu mask to %#x %#x %#x %#x\n",
m->compute_static_thread_mgmt_se0,
m->compute_static_thread_mgmt_se1,
m->compute_static_thread_mgmt_se2,
m->compute_static_thread_mgmt_se3);
}
static int init_mqd(struct mqd_manager *mm, void **mqd,
struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
struct queue_properties *q)
{
uint64_t addr;
struct cik_mqd *m;
int retval;
retval = kfd_gtt_sa_allocate(mm->dev, sizeof(struct cik_mqd),
mqd_mem_obj);
if (retval != 0)
return -ENOMEM;
m = (struct cik_mqd *) (*mqd_mem_obj)->cpu_ptr;
addr = (*mqd_mem_obj)->gpu_addr;
memset(m, 0, ALIGN(sizeof(struct cik_mqd), 256));
m->header = 0xC0310800;
m->compute_pipelinestat_enable = 1;
m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF;
m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF;
m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF;
m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF;
/*
* Make sure to use the last queue state saved on mqd when the cp
* reassigns the queue, so when queue is switched on/off (e.g over
* subscription or quantum timeout) the context will be consistent
*/
m->cp_hqd_persistent_state =
DEFAULT_CP_HQD_PERSISTENT_STATE | PRELOAD_REQ;
m->cp_mqd_control = MQD_CONTROL_PRIV_STATE_EN;
m->cp_mqd_base_addr_lo = lower_32_bits(addr);
m->cp_mqd_base_addr_hi = upper_32_bits(addr);
m->cp_hqd_quantum = QUANTUM_EN | QUANTUM_SCALE_1MS |
QUANTUM_DURATION(10);
/*
* Pipe Priority
* Identifies the pipe relative priority when this queue is connected
* to the pipeline. The pipe priority is against the GFX pipe and HP3D.
* In KFD we are using a fixed pipe priority set to CS_MEDIUM.
* 0 = CS_LOW (typically below GFX)
* 1 = CS_MEDIUM (typically between HP3D and GFX
* 2 = CS_HIGH (typically above HP3D)
*/
m->cp_hqd_pipe_priority = 1;
m->cp_hqd_queue_priority = 15;
if (q->format == KFD_QUEUE_FORMAT_AQL)
m->cp_hqd_iq_rptr = AQL_ENABLE;
*mqd = m;
if (gart_addr)
*gart_addr = addr;
retval = mm->update_mqd(mm, m, q);
return retval;
}
static int init_mqd_sdma(struct mqd_manager *mm, void **mqd,
struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
struct queue_properties *q)
{
int retval;
struct cik_sdma_rlc_registers *m;
retval = kfd_gtt_sa_allocate(mm->dev,
sizeof(struct cik_sdma_rlc_registers),
mqd_mem_obj);
if (retval != 0)
return -ENOMEM;
m = (struct cik_sdma_rlc_registers *) (*mqd_mem_obj)->cpu_ptr;
memset(m, 0, sizeof(struct cik_sdma_rlc_registers));
*mqd = m;
if (gart_addr)
*gart_addr = (*mqd_mem_obj)->gpu_addr;
retval = mm->update_mqd(mm, m, q);
return retval;
}
static void uninit_mqd(struct mqd_manager *mm, void *mqd,
struct kfd_mem_obj *mqd_mem_obj)
{
kfd_gtt_sa_free(mm->dev, mqd_mem_obj);
}
static void uninit_mqd_sdma(struct mqd_manager *mm, void *mqd,
struct kfd_mem_obj *mqd_mem_obj)
{
kfd_gtt_sa_free(mm->dev, mqd_mem_obj);
}
static int load_mqd(struct mqd_manager *mm, void *mqd, uint32_t pipe_id,
uint32_t queue_id, struct queue_properties *p,
struct mm_struct *mms)
{
/* AQL write pointer counts in 64B packets, PM4/CP counts in dwords. */
uint32_t wptr_shift = (p->format == KFD_QUEUE_FORMAT_AQL ? 4 : 0);
uint32_t wptr_mask = (uint32_t)((p->queue_size / 4) - 1);
return mm->dev->kfd2kgd->hqd_load(mm->dev->kgd, mqd, pipe_id, queue_id,
(uint32_t __user *)p->write_ptr,
wptr_shift, wptr_mask, mms);
}
static int load_mqd_sdma(struct mqd_manager *mm, void *mqd,
uint32_t pipe_id, uint32_t queue_id,
struct queue_properties *p, struct mm_struct *mms)
{
return mm->dev->kfd2kgd->hqd_sdma_load(mm->dev->kgd, mqd,
(uint32_t __user *)p->write_ptr,
mms);
}
static int __update_mqd(struct mqd_manager *mm, void *mqd,
struct queue_properties *q, unsigned int atc_bit)
{
struct cik_mqd *m;
m = get_mqd(mqd);
m->cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE |
DEFAULT_MIN_AVAIL_SIZE;
m->cp_hqd_ib_control = DEFAULT_MIN_IB_AVAIL_SIZE;
if (atc_bit) {
m->cp_hqd_pq_control |= PQ_ATC_EN;
m->cp_hqd_ib_control |= IB_ATC_EN;
}
/*
* Calculating queue size which is log base 2 of actual queue size -1
* dwords and another -1 for ffs
*/
m->cp_hqd_pq_control |= order_base_2(q->queue_size / 4) - 1;
m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
m->cp_hqd_pq_doorbell_control = DOORBELL_OFFSET(q->doorbell_off);
m->cp_hqd_vmid = q->vmid;
if (q->format == KFD_QUEUE_FORMAT_AQL)
m->cp_hqd_pq_control |= NO_UPDATE_RPTR;
update_cu_mask(mm, mqd, q);
q->is_active = (q->queue_size > 0 &&
q->queue_address != 0 &&
q->queue_percent > 0 &&
!q->is_evicted);
return 0;
}
static int update_mqd(struct mqd_manager *mm, void *mqd,
struct queue_properties *q)
{
return __update_mqd(mm, mqd, q, 1);
}
static int update_mqd_hawaii(struct mqd_manager *mm, void *mqd,
struct queue_properties *q)
{
return __update_mqd(mm, mqd, q, 0);
}
static int update_mqd_sdma(struct mqd_manager *mm, void *mqd,
struct queue_properties *q)
{
struct cik_sdma_rlc_registers *m;
m = get_sdma_mqd(mqd);
m->sdma_rlc_rb_cntl = order_base_2(q->queue_size / 4)
<< SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT |
q->vmid << SDMA0_RLC0_RB_CNTL__RB_VMID__SHIFT |
1 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT |
6 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT;
m->sdma_rlc_rb_base = lower_32_bits(q->queue_address >> 8);
m->sdma_rlc_rb_base_hi = upper_32_bits(q->queue_address >> 8);
m->sdma_rlc_rb_rptr_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
m->sdma_rlc_rb_rptr_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
m->sdma_rlc_doorbell =
q->doorbell_off << SDMA0_RLC0_DOORBELL__OFFSET__SHIFT;
m->sdma_rlc_virtual_addr = q->sdma_vm_addr;
m->sdma_engine_id = q->sdma_engine_id;
m->sdma_queue_id = q->sdma_queue_id;
q->is_active = (q->queue_size > 0 &&
q->queue_address != 0 &&
q->queue_percent > 0 &&
!q->is_evicted);
return 0;
}
static int destroy_mqd(struct mqd_manager *mm, void *mqd,
enum kfd_preempt_type type,
unsigned int timeout, uint32_t pipe_id,
uint32_t queue_id)
{
return mm->dev->kfd2kgd->hqd_destroy(mm->dev->kgd, mqd, type, timeout,
pipe_id, queue_id);
}
/*
* preempt type here is ignored because there is only one way
* to preempt sdma queue
*/
static int destroy_mqd_sdma(struct mqd_manager *mm, void *mqd,
enum kfd_preempt_type type,
unsigned int timeout, uint32_t pipe_id,
uint32_t queue_id)
{
return mm->dev->kfd2kgd->hqd_sdma_destroy(mm->dev->kgd, mqd, timeout);
}
static bool is_occupied(struct mqd_manager *mm, void *mqd,
uint64_t queue_address, uint32_t pipe_id,
uint32_t queue_id)
{
return mm->dev->kfd2kgd->hqd_is_occupied(mm->dev->kgd, queue_address,
pipe_id, queue_id);
}
static bool is_occupied_sdma(struct mqd_manager *mm, void *mqd,
uint64_t queue_address, uint32_t pipe_id,
uint32_t queue_id)
{
return mm->dev->kfd2kgd->hqd_sdma_is_occupied(mm->dev->kgd, mqd);
}
/*
* HIQ MQD Implementation, concrete implementation for HIQ MQD implementation.
* The HIQ queue in Kaveri is using the same MQD structure as all the user mode
* queues but with different initial values.
*/
static int init_mqd_hiq(struct mqd_manager *mm, void **mqd,
struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
struct queue_properties *q)
{
uint64_t addr;
struct cik_mqd *m;
int retval;
retval = kfd_gtt_sa_allocate(mm->dev, sizeof(struct cik_mqd),
mqd_mem_obj);
if (retval != 0)
return -ENOMEM;
m = (struct cik_mqd *) (*mqd_mem_obj)->cpu_ptr;
addr = (*mqd_mem_obj)->gpu_addr;
memset(m, 0, ALIGN(sizeof(struct cik_mqd), 256));
m->header = 0xC0310800;
m->compute_pipelinestat_enable = 1;
m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF;
m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF;
m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF;
m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF;
m->cp_hqd_persistent_state = DEFAULT_CP_HQD_PERSISTENT_STATE |
PRELOAD_REQ;
m->cp_hqd_quantum = QUANTUM_EN | QUANTUM_SCALE_1MS |
QUANTUM_DURATION(10);
m->cp_mqd_control = MQD_CONTROL_PRIV_STATE_EN;
m->cp_mqd_base_addr_lo = lower_32_bits(addr);
m->cp_mqd_base_addr_hi = upper_32_bits(addr);
m->cp_hqd_ib_control = DEFAULT_MIN_IB_AVAIL_SIZE;
/*
* Pipe Priority
* Identifies the pipe relative priority when this queue is connected
* to the pipeline. The pipe priority is against the GFX pipe and HP3D.
* In KFD we are using a fixed pipe priority set to CS_MEDIUM.
* 0 = CS_LOW (typically below GFX)
* 1 = CS_MEDIUM (typically between HP3D and GFX
* 2 = CS_HIGH (typically above HP3D)
*/
m->cp_hqd_pipe_priority = 1;
m->cp_hqd_queue_priority = 15;
*mqd = m;
if (gart_addr)
*gart_addr = addr;
retval = mm->update_mqd(mm, m, q);
return retval;
}
static int update_mqd_hiq(struct mqd_manager *mm, void *mqd,
struct queue_properties *q)
{
struct cik_mqd *m;
m = get_mqd(mqd);
m->cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE |
DEFAULT_MIN_AVAIL_SIZE |
PRIV_STATE |
KMD_QUEUE;
/*
* Calculating queue size which is log base 2 of actual queue
* size -1 dwords
*/
m->cp_hqd_pq_control |= order_base_2(q->queue_size / 4) - 1;
m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
m->cp_hqd_pq_doorbell_control = DOORBELL_OFFSET(q->doorbell_off);
m->cp_hqd_vmid = q->vmid;
q->is_active = (q->queue_size > 0 &&
q->queue_address != 0 &&
q->queue_percent > 0 &&
!q->is_evicted);
return 0;
}
#if defined(CONFIG_DEBUG_FS)
static int debugfs_show_mqd(struct seq_file *m, void *data)
{
seq_hex_dump(m, " ", DUMP_PREFIX_OFFSET, 32, 4,
data, sizeof(struct cik_mqd), false);
return 0;
}
static int debugfs_show_mqd_sdma(struct seq_file *m, void *data)
{
seq_hex_dump(m, " ", DUMP_PREFIX_OFFSET, 32, 4,
data, sizeof(struct cik_sdma_rlc_registers), false);
return 0;
}
#endif
struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type,
struct kfd_dev *dev)
{
struct mqd_manager *mqd;
if (WARN_ON(type >= KFD_MQD_TYPE_MAX))
return NULL;
mqd = kzalloc(sizeof(*mqd), GFP_KERNEL);
if (!mqd)
return NULL;
mqd->dev = dev;
switch (type) {
case KFD_MQD_TYPE_CP:
case KFD_MQD_TYPE_COMPUTE:
mqd->init_mqd = init_mqd;
mqd->uninit_mqd = uninit_mqd;
mqd->load_mqd = load_mqd;
mqd->update_mqd = update_mqd;
mqd->destroy_mqd = destroy_mqd;
mqd->is_occupied = is_occupied;
#if defined(CONFIG_DEBUG_FS)
mqd->debugfs_show_mqd = debugfs_show_mqd;
#endif
break;
case KFD_MQD_TYPE_HIQ:
mqd->init_mqd = init_mqd_hiq;
mqd->uninit_mqd = uninit_mqd;
mqd->load_mqd = load_mqd;
mqd->update_mqd = update_mqd_hiq;
mqd->destroy_mqd = destroy_mqd;
mqd->is_occupied = is_occupied;
#if defined(CONFIG_DEBUG_FS)
mqd->debugfs_show_mqd = debugfs_show_mqd;
#endif
break;
case KFD_MQD_TYPE_SDMA:
mqd->init_mqd = init_mqd_sdma;
mqd->uninit_mqd = uninit_mqd_sdma;
mqd->load_mqd = load_mqd_sdma;
mqd->update_mqd = update_mqd_sdma;
mqd->destroy_mqd = destroy_mqd_sdma;
mqd->is_occupied = is_occupied_sdma;
#if defined(CONFIG_DEBUG_FS)
mqd->debugfs_show_mqd = debugfs_show_mqd_sdma;
#endif
break;
default:
kfree(mqd);
return NULL;
}
return mqd;
}
struct mqd_manager *mqd_manager_init_cik_hawaii(enum KFD_MQD_TYPE type,
struct kfd_dev *dev)
{
struct mqd_manager *mqd;
mqd = mqd_manager_init_cik(type, dev);
if (!mqd)
return NULL;
if ((type == KFD_MQD_TYPE_CP) || (type == KFD_MQD_TYPE_COMPUTE))
mqd->update_mqd = update_mqd_hawaii;
return mqd;
}