diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c | 464 |
1 files changed, 464 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c new file mode 100644 index 000000000..1a4a69943 --- /dev/null +++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c @@ -0,0 +1,464 @@ +// SPDX-License-Identifier: GPL-2.0 OR MIT +/* + * Copyright 2014-2022 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. + * + */ + +#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 mqd_update_info *minfo) +{ + struct cik_mqd *m; + uint32_t se_mask[4] = {0}; /* 4 is the max # of SEs */ + + if (!minfo || !minfo->cu_mask.ptr) + return; + + mqd_symmetrically_map_cu_mask(mm, + minfo->cu_mask.ptr, minfo->cu_mask.count, se_mask, 0); + + 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 void set_priority(struct cik_mqd *m, struct queue_properties *q) +{ + m->cp_hqd_pipe_priority = pipe_priority_map[q->priority]; + m->cp_hqd_queue_priority = q->priority; +} + +static struct kfd_mem_obj *allocate_mqd(struct kfd_node *kfd, + struct queue_properties *q) +{ + struct kfd_mem_obj *mqd_mem_obj; + + if (kfd_gtt_sa_allocate(kfd, sizeof(struct cik_mqd), + &mqd_mem_obj)) + return NULL; + + return mqd_mem_obj; +} + +static void 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; + + 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) + */ + set_priority(m, q); + + if (q->format == KFD_QUEUE_FORMAT_AQL) + m->cp_hqd_iq_rptr = AQL_ENABLE; + + *mqd = m; + if (gart_addr) + *gart_addr = addr; + mm->update_mqd(mm, m, q, NULL); +} + +static void init_mqd_sdma(struct mqd_manager *mm, void **mqd, + struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr, + struct queue_properties *q) +{ + struct cik_sdma_rlc_registers *m; + + 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; + + mm->update_mqd(mm, m, q, NULL); +} + +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->adev, mqd, pipe_id, queue_id, + (uint32_t __user *)p->write_ptr, + wptr_shift, wptr_mask, mms, 0); +} + +static void __update_mqd(struct mqd_manager *mm, void *mqd, + struct queue_properties *q, struct mqd_update_info *minfo, + 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, minfo); + set_priority(m, q); + + q->is_active = QUEUE_IS_ACTIVE(*q); +} + +static uint32_t read_doorbell_id(void *mqd) +{ + struct cik_mqd *m = (struct cik_mqd *)mqd; + + return m->queue_doorbell_id0; +} + +static void update_mqd(struct mqd_manager *mm, void *mqd, + struct queue_properties *q, + struct mqd_update_info *minfo) +{ + __update_mqd(mm, mqd, q, minfo, 0); +} + +static void update_mqd_sdma(struct mqd_manager *mm, void *mqd, + struct queue_properties *q, + struct mqd_update_info *minfo) +{ + 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 = QUEUE_IS_ACTIVE(*q); +} + +static void checkpoint_mqd(struct mqd_manager *mm, void *mqd, void *mqd_dst, void *ctl_stack_dst) +{ + struct cik_mqd *m; + + m = get_mqd(mqd); + + memcpy(mqd_dst, m, sizeof(struct cik_mqd)); +} + +static void restore_mqd(struct mqd_manager *mm, void **mqd, + struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr, + struct queue_properties *qp, + const void *mqd_src, + const void *ctl_stack_src, const u32 ctl_stack_size) +{ + uint64_t addr; + struct cik_mqd *m; + + m = (struct cik_mqd *) mqd_mem_obj->cpu_ptr; + addr = mqd_mem_obj->gpu_addr; + + memcpy(m, mqd_src, sizeof(*m)); + + *mqd = m; + if (gart_addr) + *gart_addr = addr; + + m->cp_hqd_pq_doorbell_control = DOORBELL_OFFSET(qp->doorbell_off); + + pr_debug("cp_hqd_pq_doorbell_control 0x%x\n", + m->cp_hqd_pq_doorbell_control); + + qp->is_active = 0; +} + +static void checkpoint_mqd_sdma(struct mqd_manager *mm, + void *mqd, + void *mqd_dst, + void *ctl_stack_dst) +{ + struct cik_sdma_rlc_registers *m; + + m = get_sdma_mqd(mqd); + + memcpy(mqd_dst, m, sizeof(struct cik_sdma_rlc_registers)); +} + +static void restore_mqd_sdma(struct mqd_manager *mm, void **mqd, + struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr, + struct queue_properties *qp, + const void *mqd_src, + const void *ctl_stack_src, const u32 ctl_stack_size) +{ + uint64_t addr; + struct cik_sdma_rlc_registers *m; + + m = (struct cik_sdma_rlc_registers *) mqd_mem_obj->cpu_ptr; + addr = mqd_mem_obj->gpu_addr; + + memcpy(m, mqd_src, sizeof(*m)); + + m->sdma_rlc_doorbell = + qp->doorbell_off << SDMA0_RLC0_DOORBELL__OFFSET__SHIFT; + + *mqd = m; + if (gart_addr) + *gart_addr = addr; + + qp->is_active = 0; +} + +/* + * 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 void init_mqd_hiq(struct mqd_manager *mm, void **mqd, + struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr, + struct queue_properties *q) +{ + init_mqd(mm, mqd, mqd_mem_obj, gart_addr, q); +} + +static void update_mqd_hiq(struct mqd_manager *mm, void *mqd, + struct queue_properties *q, + struct mqd_update_info *minfo) +{ + 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 = QUEUE_IS_ACTIVE(*q); + + set_priority(m, q); +} + +#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_node *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: + mqd->allocate_mqd = allocate_mqd; + mqd->init_mqd = init_mqd; + mqd->free_mqd = kfd_free_mqd_cp; + mqd->load_mqd = load_mqd; + mqd->update_mqd = update_mqd; + mqd->destroy_mqd = kfd_destroy_mqd_cp; + mqd->is_occupied = kfd_is_occupied_cp; + mqd->checkpoint_mqd = checkpoint_mqd; + mqd->restore_mqd = restore_mqd; + mqd->mqd_size = sizeof(struct cik_mqd); +#if defined(CONFIG_DEBUG_FS) + mqd->debugfs_show_mqd = debugfs_show_mqd; +#endif + break; + case KFD_MQD_TYPE_HIQ: + mqd->allocate_mqd = allocate_hiq_mqd; + mqd->init_mqd = init_mqd_hiq; + mqd->free_mqd = free_mqd_hiq_sdma; + mqd->load_mqd = load_mqd; + mqd->update_mqd = update_mqd_hiq; + mqd->destroy_mqd = kfd_destroy_mqd_cp; + mqd->is_occupied = kfd_is_occupied_cp; + mqd->mqd_size = sizeof(struct cik_mqd); + mqd->mqd_stride = kfd_mqd_stride; +#if defined(CONFIG_DEBUG_FS) + mqd->debugfs_show_mqd = debugfs_show_mqd; +#endif + mqd->read_doorbell_id = read_doorbell_id; + break; + case KFD_MQD_TYPE_DIQ: + mqd->allocate_mqd = allocate_mqd; + mqd->init_mqd = init_mqd_hiq; + mqd->free_mqd = kfd_free_mqd_cp; + mqd->load_mqd = load_mqd; + mqd->update_mqd = update_mqd_hiq; + mqd->destroy_mqd = kfd_destroy_mqd_cp; + mqd->is_occupied = kfd_is_occupied_cp; + mqd->mqd_size = sizeof(struct cik_mqd); + mqd->mqd_stride = kfd_mqd_stride; +#if defined(CONFIG_DEBUG_FS) + mqd->debugfs_show_mqd = debugfs_show_mqd; +#endif + break; + case KFD_MQD_TYPE_SDMA: + mqd->allocate_mqd = allocate_sdma_mqd; + mqd->init_mqd = init_mqd_sdma; + mqd->free_mqd = free_mqd_hiq_sdma; + mqd->load_mqd = kfd_load_mqd_sdma; + mqd->update_mqd = update_mqd_sdma; + mqd->destroy_mqd = kfd_destroy_mqd_sdma; + mqd->is_occupied = kfd_is_occupied_sdma; + mqd->checkpoint_mqd = checkpoint_mqd_sdma; + mqd->restore_mqd = restore_mqd_sdma; + mqd->mqd_size = sizeof(struct cik_sdma_rlc_registers); + mqd->mqd_stride = kfd_mqd_stride; +#if defined(CONFIG_DEBUG_FS) + mqd->debugfs_show_mqd = debugfs_show_mqd_sdma; +#endif + break; + default: + kfree(mqd); + return NULL; + } + + return mqd; +} |