diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c | 876 |
1 files changed, 876 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c new file mode 100644 index 000000000..e92b93557 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c @@ -0,0 +1,876 @@ +/* + * Copyright 2014-2018 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 "amdgpu.h" +#include "amdgpu_amdkfd.h" +#include "gc/gc_9_0_offset.h" +#include "gc/gc_9_0_sh_mask.h" +#include "vega10_enum.h" +#include "sdma0/sdma0_4_0_offset.h" +#include "sdma0/sdma0_4_0_sh_mask.h" +#include "sdma1/sdma1_4_0_offset.h" +#include "sdma1/sdma1_4_0_sh_mask.h" +#include "athub/athub_1_0_offset.h" +#include "athub/athub_1_0_sh_mask.h" +#include "oss/osssys_4_0_offset.h" +#include "oss/osssys_4_0_sh_mask.h" +#include "soc15_common.h" +#include "v9_structs.h" +#include "soc15.h" +#include "soc15d.h" +#include "gfx_v9_0.h" +#include "amdgpu_amdkfd_gfx_v9.h" + +enum hqd_dequeue_request_type { + NO_ACTION = 0, + DRAIN_PIPE, + RESET_WAVES, + SAVE_WAVES +}; + +static void lock_srbm(struct amdgpu_device *adev, uint32_t mec, uint32_t pipe, + uint32_t queue, uint32_t vmid) +{ + mutex_lock(&adev->srbm_mutex); + soc15_grbm_select(adev, mec, pipe, queue, vmid); +} + +static void unlock_srbm(struct amdgpu_device *adev) +{ + soc15_grbm_select(adev, 0, 0, 0, 0); + mutex_unlock(&adev->srbm_mutex); +} + +static void acquire_queue(struct amdgpu_device *adev, uint32_t pipe_id, + uint32_t queue_id) +{ + uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1; + uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec); + + lock_srbm(adev, mec, pipe, queue_id, 0); +} + +static uint64_t get_queue_mask(struct amdgpu_device *adev, + uint32_t pipe_id, uint32_t queue_id) +{ + unsigned int bit = pipe_id * adev->gfx.mec.num_queue_per_pipe + + queue_id; + + return 1ull << bit; +} + +static void release_queue(struct amdgpu_device *adev) +{ + unlock_srbm(adev); +} + +void kgd_gfx_v9_program_sh_mem_settings(struct amdgpu_device *adev, uint32_t vmid, + uint32_t sh_mem_config, + uint32_t sh_mem_ape1_base, + uint32_t sh_mem_ape1_limit, + uint32_t sh_mem_bases) +{ + lock_srbm(adev, 0, 0, 0, vmid); + + WREG32_RLC(SOC15_REG_OFFSET(GC, 0, mmSH_MEM_CONFIG), sh_mem_config); + WREG32_RLC(SOC15_REG_OFFSET(GC, 0, mmSH_MEM_BASES), sh_mem_bases); + /* APE1 no longer exists on GFX9 */ + + unlock_srbm(adev); +} + +int kgd_gfx_v9_set_pasid_vmid_mapping(struct amdgpu_device *adev, u32 pasid, + unsigned int vmid) +{ + /* + * We have to assume that there is no outstanding mapping. + * The ATC_VMID_PASID_MAPPING_UPDATE_STATUS bit could be 0 because + * a mapping is in progress or because a mapping finished + * and the SW cleared it. + * So the protocol is to always wait & clear. + */ + uint32_t pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid | + ATC_VMID0_PASID_MAPPING__VALID_MASK; + + /* + * need to do this twice, once for gfx and once for mmhub + * for ATC add 16 to VMID for mmhub, for IH different registers. + * ATC_VMID0..15 registers are separate from ATC_VMID16..31. + */ + + WREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID0_PASID_MAPPING) + vmid, + pasid_mapping); + + while (!(RREG32(SOC15_REG_OFFSET( + ATHUB, 0, + mmATC_VMID_PASID_MAPPING_UPDATE_STATUS)) & + (1U << vmid))) + cpu_relax(); + + WREG32(SOC15_REG_OFFSET(ATHUB, 0, + mmATC_VMID_PASID_MAPPING_UPDATE_STATUS), + 1U << vmid); + + /* Mapping vmid to pasid also for IH block */ + WREG32(SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid, + pasid_mapping); + + WREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID16_PASID_MAPPING) + vmid, + pasid_mapping); + + while (!(RREG32(SOC15_REG_OFFSET( + ATHUB, 0, + mmATC_VMID_PASID_MAPPING_UPDATE_STATUS)) & + (1U << (vmid + 16)))) + cpu_relax(); + + WREG32(SOC15_REG_OFFSET(ATHUB, 0, + mmATC_VMID_PASID_MAPPING_UPDATE_STATUS), + 1U << (vmid + 16)); + + /* Mapping vmid to pasid also for IH block */ + WREG32(SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT_MM) + vmid, + pasid_mapping); + return 0; +} + +/* TODO - RING0 form of field is obsolete, seems to date back to SI + * but still works + */ + +int kgd_gfx_v9_init_interrupts(struct amdgpu_device *adev, uint32_t pipe_id) +{ + uint32_t mec; + uint32_t pipe; + + mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1; + pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec); + + lock_srbm(adev, mec, pipe, 0, 0); + + WREG32_SOC15(GC, 0, mmCPC_INT_CNTL, + CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK | + CP_INT_CNTL_RING0__OPCODE_ERROR_INT_ENABLE_MASK); + + unlock_srbm(adev); + + return 0; +} + +static uint32_t get_sdma_rlc_reg_offset(struct amdgpu_device *adev, + unsigned int engine_id, + unsigned int queue_id) +{ + uint32_t sdma_engine_reg_base = 0; + uint32_t sdma_rlc_reg_offset; + + switch (engine_id) { + default: + dev_warn(adev->dev, + "Invalid sdma engine id (%d), using engine id 0\n", + engine_id); + fallthrough; + case 0: + sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA0, 0, + mmSDMA0_RLC0_RB_CNTL) - mmSDMA0_RLC0_RB_CNTL; + break; + case 1: + sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA1, 0, + mmSDMA1_RLC0_RB_CNTL) - mmSDMA0_RLC0_RB_CNTL; + break; + } + + sdma_rlc_reg_offset = sdma_engine_reg_base + + queue_id * (mmSDMA0_RLC1_RB_CNTL - mmSDMA0_RLC0_RB_CNTL); + + pr_debug("RLC register offset for SDMA%d RLC%d: 0x%x\n", engine_id, + queue_id, sdma_rlc_reg_offset); + + return sdma_rlc_reg_offset; +} + +static inline struct v9_mqd *get_mqd(void *mqd) +{ + return (struct v9_mqd *)mqd; +} + +static inline struct v9_sdma_mqd *get_sdma_mqd(void *mqd) +{ + return (struct v9_sdma_mqd *)mqd; +} + +int kgd_gfx_v9_hqd_load(struct amdgpu_device *adev, void *mqd, + uint32_t pipe_id, uint32_t queue_id, + uint32_t __user *wptr, uint32_t wptr_shift, + uint32_t wptr_mask, struct mm_struct *mm) +{ + struct v9_mqd *m; + uint32_t *mqd_hqd; + uint32_t reg, hqd_base, data; + + m = get_mqd(mqd); + + acquire_queue(adev, pipe_id, queue_id); + + /* HQD registers extend from CP_MQD_BASE_ADDR to CP_HQD_EOP_WPTR_MEM. */ + mqd_hqd = &m->cp_mqd_base_addr_lo; + hqd_base = SOC15_REG_OFFSET(GC, 0, mmCP_MQD_BASE_ADDR); + + for (reg = hqd_base; + reg <= SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_HI); reg++) + WREG32_RLC(reg, mqd_hqd[reg - hqd_base]); + + + /* Activate doorbell logic before triggering WPTR poll. */ + data = REG_SET_FIELD(m->cp_hqd_pq_doorbell_control, + CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1); + WREG32_RLC(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_DOORBELL_CONTROL), data); + + if (wptr) { + /* Don't read wptr with get_user because the user + * context may not be accessible (if this function + * runs in a work queue). Instead trigger a one-shot + * polling read from memory in the CP. This assumes + * that wptr is GPU-accessible in the queue's VMID via + * ATC or SVM. WPTR==RPTR before starting the poll so + * the CP starts fetching new commands from the right + * place. + * + * Guessing a 64-bit WPTR from a 32-bit RPTR is a bit + * tricky. Assume that the queue didn't overflow. The + * number of valid bits in the 32-bit RPTR depends on + * the queue size. The remaining bits are taken from + * the saved 64-bit WPTR. If the WPTR wrapped, add the + * queue size. + */ + uint32_t queue_size = + 2 << REG_GET_FIELD(m->cp_hqd_pq_control, + CP_HQD_PQ_CONTROL, QUEUE_SIZE); + uint64_t guessed_wptr = m->cp_hqd_pq_rptr & (queue_size - 1); + + if ((m->cp_hqd_pq_wptr_lo & (queue_size - 1)) < guessed_wptr) + guessed_wptr += queue_size; + guessed_wptr += m->cp_hqd_pq_wptr_lo & ~(queue_size - 1); + guessed_wptr += (uint64_t)m->cp_hqd_pq_wptr_hi << 32; + + WREG32_RLC(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_LO), + lower_32_bits(guessed_wptr)); + WREG32_RLC(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_HI), + upper_32_bits(guessed_wptr)); + WREG32_RLC(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_POLL_ADDR), + lower_32_bits((uintptr_t)wptr)); + WREG32_RLC(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_POLL_ADDR_HI), + upper_32_bits((uintptr_t)wptr)); + WREG32_SOC15(GC, 0, mmCP_PQ_WPTR_POLL_CNTL1, + (uint32_t)get_queue_mask(adev, pipe_id, queue_id)); + } + + /* Start the EOP fetcher */ + WREG32_RLC(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_EOP_RPTR), + REG_SET_FIELD(m->cp_hqd_eop_rptr, + CP_HQD_EOP_RPTR, INIT_FETCHER, 1)); + + data = REG_SET_FIELD(m->cp_hqd_active, CP_HQD_ACTIVE, ACTIVE, 1); + WREG32_RLC(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_ACTIVE), data); + + release_queue(adev); + + return 0; +} + +int kgd_gfx_v9_hiq_mqd_load(struct amdgpu_device *adev, void *mqd, + uint32_t pipe_id, uint32_t queue_id, + uint32_t doorbell_off) +{ + struct amdgpu_ring *kiq_ring = &adev->gfx.kiq.ring; + struct v9_mqd *m; + uint32_t mec, pipe; + int r; + + m = get_mqd(mqd); + + acquire_queue(adev, pipe_id, queue_id); + + mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1; + pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec); + + pr_debug("kfd: set HIQ, mec:%d, pipe:%d, queue:%d.\n", + mec, pipe, queue_id); + + spin_lock(&adev->gfx.kiq.ring_lock); + r = amdgpu_ring_alloc(kiq_ring, 7); + if (r) { + pr_err("Failed to alloc KIQ (%d).\n", r); + goto out_unlock; + } + + amdgpu_ring_write(kiq_ring, PACKET3(PACKET3_MAP_QUEUES, 5)); + amdgpu_ring_write(kiq_ring, + PACKET3_MAP_QUEUES_QUEUE_SEL(0) | /* Queue_Sel */ + PACKET3_MAP_QUEUES_VMID(m->cp_hqd_vmid) | /* VMID */ + PACKET3_MAP_QUEUES_QUEUE(queue_id) | + PACKET3_MAP_QUEUES_PIPE(pipe) | + PACKET3_MAP_QUEUES_ME((mec - 1)) | + PACKET3_MAP_QUEUES_QUEUE_TYPE(0) | /*queue_type: normal compute queue */ + PACKET3_MAP_QUEUES_ALLOC_FORMAT(0) | /* alloc format: all_on_one_pipe */ + PACKET3_MAP_QUEUES_ENGINE_SEL(1) | /* engine_sel: hiq */ + PACKET3_MAP_QUEUES_NUM_QUEUES(1)); /* num_queues: must be 1 */ + amdgpu_ring_write(kiq_ring, + PACKET3_MAP_QUEUES_DOORBELL_OFFSET(doorbell_off)); + amdgpu_ring_write(kiq_ring, m->cp_mqd_base_addr_lo); + amdgpu_ring_write(kiq_ring, m->cp_mqd_base_addr_hi); + amdgpu_ring_write(kiq_ring, m->cp_hqd_pq_wptr_poll_addr_lo); + amdgpu_ring_write(kiq_ring, m->cp_hqd_pq_wptr_poll_addr_hi); + amdgpu_ring_commit(kiq_ring); + +out_unlock: + spin_unlock(&adev->gfx.kiq.ring_lock); + release_queue(adev); + + return r; +} + +int kgd_gfx_v9_hqd_dump(struct amdgpu_device *adev, + uint32_t pipe_id, uint32_t queue_id, + uint32_t (**dump)[2], uint32_t *n_regs) +{ + uint32_t i = 0, reg; +#define HQD_N_REGS 56 +#define DUMP_REG(addr) do { \ + if (WARN_ON_ONCE(i >= HQD_N_REGS)) \ + break; \ + (*dump)[i][0] = (addr) << 2; \ + (*dump)[i++][1] = RREG32(addr); \ + } while (0) + + *dump = kmalloc_array(HQD_N_REGS * 2, sizeof(uint32_t), GFP_KERNEL); + if (*dump == NULL) + return -ENOMEM; + + acquire_queue(adev, pipe_id, queue_id); + + for (reg = SOC15_REG_OFFSET(GC, 0, mmCP_MQD_BASE_ADDR); + reg <= SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_HI); reg++) + DUMP_REG(reg); + + release_queue(adev); + + WARN_ON_ONCE(i != HQD_N_REGS); + *n_regs = i; + + return 0; +} + +static int kgd_hqd_sdma_load(struct amdgpu_device *adev, void *mqd, + uint32_t __user *wptr, struct mm_struct *mm) +{ + struct v9_sdma_mqd *m; + uint32_t sdma_rlc_reg_offset; + unsigned long end_jiffies; + uint32_t data; + uint64_t data64; + uint64_t __user *wptr64 = (uint64_t __user *)wptr; + + m = get_sdma_mqd(mqd); + sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, m->sdma_engine_id, + m->sdma_queue_id); + + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, + m->sdmax_rlcx_rb_cntl & (~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)); + + end_jiffies = msecs_to_jiffies(2000) + jiffies; + while (true) { + data = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_CONTEXT_STATUS); + if (data & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK) + break; + if (time_after(jiffies, end_jiffies)) { + pr_err("SDMA RLC not idle in %s\n", __func__); + return -ETIME; + } + usleep_range(500, 1000); + } + + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL_OFFSET, + m->sdmax_rlcx_doorbell_offset); + + data = REG_SET_FIELD(m->sdmax_rlcx_doorbell, SDMA0_RLC0_DOORBELL, + ENABLE, 1); + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL, data); + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR, + m->sdmax_rlcx_rb_rptr); + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_HI, + m->sdmax_rlcx_rb_rptr_hi); + + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_MINOR_PTR_UPDATE, 1); + if (read_user_wptr(mm, wptr64, data64)) { + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR, + lower_32_bits(data64)); + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR_HI, + upper_32_bits(data64)); + } else { + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR, + m->sdmax_rlcx_rb_rptr); + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR_HI, + m->sdmax_rlcx_rb_rptr_hi); + } + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_MINOR_PTR_UPDATE, 0); + + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_BASE, m->sdmax_rlcx_rb_base); + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_BASE_HI, + m->sdmax_rlcx_rb_base_hi); + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_ADDR_LO, + m->sdmax_rlcx_rb_rptr_addr_lo); + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_ADDR_HI, + m->sdmax_rlcx_rb_rptr_addr_hi); + + data = REG_SET_FIELD(m->sdmax_rlcx_rb_cntl, SDMA0_RLC0_RB_CNTL, + RB_ENABLE, 1); + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, data); + + return 0; +} + +static int kgd_hqd_sdma_dump(struct amdgpu_device *adev, + uint32_t engine_id, uint32_t queue_id, + uint32_t (**dump)[2], uint32_t *n_regs) +{ + uint32_t sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, + engine_id, queue_id); + uint32_t i = 0, reg; +#undef HQD_N_REGS +#define HQD_N_REGS (19+6+7+10) + + *dump = kmalloc_array(HQD_N_REGS * 2, sizeof(uint32_t), GFP_KERNEL); + if (*dump == NULL) + return -ENOMEM; + + for (reg = mmSDMA0_RLC0_RB_CNTL; reg <= mmSDMA0_RLC0_DOORBELL; reg++) + DUMP_REG(sdma_rlc_reg_offset + reg); + for (reg = mmSDMA0_RLC0_STATUS; reg <= mmSDMA0_RLC0_CSA_ADDR_HI; reg++) + DUMP_REG(sdma_rlc_reg_offset + reg); + for (reg = mmSDMA0_RLC0_IB_SUB_REMAIN; + reg <= mmSDMA0_RLC0_MINOR_PTR_UPDATE; reg++) + DUMP_REG(sdma_rlc_reg_offset + reg); + for (reg = mmSDMA0_RLC0_MIDCMD_DATA0; + reg <= mmSDMA0_RLC0_MIDCMD_CNTL; reg++) + DUMP_REG(sdma_rlc_reg_offset + reg); + + WARN_ON_ONCE(i != HQD_N_REGS); + *n_regs = i; + + return 0; +} + +bool kgd_gfx_v9_hqd_is_occupied(struct amdgpu_device *adev, + uint64_t queue_address, uint32_t pipe_id, + uint32_t queue_id) +{ + uint32_t act; + bool retval = false; + uint32_t low, high; + + acquire_queue(adev, pipe_id, queue_id); + act = RREG32_SOC15(GC, 0, mmCP_HQD_ACTIVE); + if (act) { + low = lower_32_bits(queue_address >> 8); + high = upper_32_bits(queue_address >> 8); + + if (low == RREG32_SOC15(GC, 0, mmCP_HQD_PQ_BASE) && + high == RREG32_SOC15(GC, 0, mmCP_HQD_PQ_BASE_HI)) + retval = true; + } + release_queue(adev); + return retval; +} + +static bool kgd_hqd_sdma_is_occupied(struct amdgpu_device *adev, void *mqd) +{ + struct v9_sdma_mqd *m; + uint32_t sdma_rlc_reg_offset; + uint32_t sdma_rlc_rb_cntl; + + m = get_sdma_mqd(mqd); + sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, m->sdma_engine_id, + m->sdma_queue_id); + + sdma_rlc_rb_cntl = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL); + + if (sdma_rlc_rb_cntl & SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK) + return true; + + return false; +} + +int kgd_gfx_v9_hqd_destroy(struct amdgpu_device *adev, void *mqd, + enum kfd_preempt_type reset_type, + unsigned int utimeout, uint32_t pipe_id, + uint32_t queue_id) +{ + enum hqd_dequeue_request_type type; + unsigned long end_jiffies; + uint32_t temp; + struct v9_mqd *m = get_mqd(mqd); + + if (amdgpu_in_reset(adev)) + return -EIO; + + acquire_queue(adev, pipe_id, queue_id); + + if (m->cp_hqd_vmid == 0) + WREG32_FIELD15_RLC(GC, 0, RLC_CP_SCHEDULERS, scheduler1, 0); + + switch (reset_type) { + case KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN: + type = DRAIN_PIPE; + break; + case KFD_PREEMPT_TYPE_WAVEFRONT_RESET: + type = RESET_WAVES; + break; + case KFD_PREEMPT_TYPE_WAVEFRONT_SAVE: + type = SAVE_WAVES; + break; + default: + type = DRAIN_PIPE; + break; + } + + WREG32_RLC(SOC15_REG_OFFSET(GC, 0, mmCP_HQD_DEQUEUE_REQUEST), type); + + end_jiffies = (utimeout * HZ / 1000) + jiffies; + while (true) { + temp = RREG32_SOC15(GC, 0, mmCP_HQD_ACTIVE); + if (!(temp & CP_HQD_ACTIVE__ACTIVE_MASK)) + break; + if (time_after(jiffies, end_jiffies)) { + pr_err("cp queue preemption time out.\n"); + release_queue(adev); + return -ETIME; + } + usleep_range(500, 1000); + } + + release_queue(adev); + return 0; +} + +static int kgd_hqd_sdma_destroy(struct amdgpu_device *adev, void *mqd, + unsigned int utimeout) +{ + struct v9_sdma_mqd *m; + uint32_t sdma_rlc_reg_offset; + uint32_t temp; + unsigned long end_jiffies = (utimeout * HZ / 1000) + jiffies; + + m = get_sdma_mqd(mqd); + sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, m->sdma_engine_id, + m->sdma_queue_id); + + temp = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL); + temp = temp & ~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK; + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, temp); + + while (true) { + temp = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_CONTEXT_STATUS); + if (temp & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK) + break; + if (time_after(jiffies, end_jiffies)) { + pr_err("SDMA RLC not idle in %s\n", __func__); + return -ETIME; + } + usleep_range(500, 1000); + } + + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL, 0); + WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, + RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL) | + SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK); + + m->sdmax_rlcx_rb_rptr = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR); + m->sdmax_rlcx_rb_rptr_hi = + RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_HI); + + return 0; +} + +bool kgd_gfx_v9_get_atc_vmid_pasid_mapping_info(struct amdgpu_device *adev, + uint8_t vmid, uint16_t *p_pasid) +{ + uint32_t value; + + value = RREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID0_PASID_MAPPING) + + vmid); + *p_pasid = value & ATC_VMID0_PASID_MAPPING__PASID_MASK; + + return !!(value & ATC_VMID0_PASID_MAPPING__VALID_MASK); +} + +int kgd_gfx_v9_wave_control_execute(struct amdgpu_device *adev, + uint32_t gfx_index_val, + uint32_t sq_cmd) +{ + uint32_t data = 0; + + mutex_lock(&adev->grbm_idx_mutex); + + WREG32_SOC15_RLC_SHADOW(GC, 0, mmGRBM_GFX_INDEX, gfx_index_val); + WREG32_SOC15(GC, 0, mmSQ_CMD, sq_cmd); + + data = REG_SET_FIELD(data, GRBM_GFX_INDEX, + INSTANCE_BROADCAST_WRITES, 1); + data = REG_SET_FIELD(data, GRBM_GFX_INDEX, + SH_BROADCAST_WRITES, 1); + data = REG_SET_FIELD(data, GRBM_GFX_INDEX, + SE_BROADCAST_WRITES, 1); + + WREG32_SOC15_RLC_SHADOW(GC, 0, mmGRBM_GFX_INDEX, data); + mutex_unlock(&adev->grbm_idx_mutex); + + return 0; +} + +void kgd_gfx_v9_set_vm_context_page_table_base(struct amdgpu_device *adev, + uint32_t vmid, uint64_t page_table_base) +{ + if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) { + pr_err("trying to set page table base for wrong VMID %u\n", + vmid); + return; + } + + adev->mmhub.funcs->setup_vm_pt_regs(adev, vmid, page_table_base); + + adev->gfxhub.funcs->setup_vm_pt_regs(adev, vmid, page_table_base); +} + +static void lock_spi_csq_mutexes(struct amdgpu_device *adev) +{ + mutex_lock(&adev->srbm_mutex); + mutex_lock(&adev->grbm_idx_mutex); + +} + +static void unlock_spi_csq_mutexes(struct amdgpu_device *adev) +{ + mutex_unlock(&adev->grbm_idx_mutex); + mutex_unlock(&adev->srbm_mutex); +} + +/** + * get_wave_count: Read device registers to get number of waves in flight for + * a particular queue. The method also returns the VMID associated with the + * queue. + * + * @adev: Handle of device whose registers are to be read + * @queue_idx: Index of queue in the queue-map bit-field + * @wave_cnt: Output parameter updated with number of waves in flight + * @vmid: Output parameter updated with VMID of queue whose wave count + * is being collected + */ +static void get_wave_count(struct amdgpu_device *adev, int queue_idx, + int *wave_cnt, int *vmid) +{ + int pipe_idx; + int queue_slot; + unsigned int reg_val; + + /* + * Program GRBM with appropriate MEID, PIPEID, QUEUEID and VMID + * parameters to read out waves in flight. Get VMID if there are + * non-zero waves in flight. + */ + *vmid = 0xFF; + *wave_cnt = 0; + pipe_idx = queue_idx / adev->gfx.mec.num_queue_per_pipe; + queue_slot = queue_idx % adev->gfx.mec.num_queue_per_pipe; + soc15_grbm_select(adev, 1, pipe_idx, queue_slot, 0); + reg_val = RREG32_SOC15_IP(GC, SOC15_REG_OFFSET(GC, 0, mmSPI_CSQ_WF_ACTIVE_COUNT_0) + + queue_slot); + *wave_cnt = reg_val & SPI_CSQ_WF_ACTIVE_COUNT_0__COUNT_MASK; + if (*wave_cnt != 0) + *vmid = (RREG32_SOC15(GC, 0, mmCP_HQD_VMID) & + CP_HQD_VMID__VMID_MASK) >> CP_HQD_VMID__VMID__SHIFT; +} + +/** + * kgd_gfx_v9_get_cu_occupancy: Reads relevant registers associated with each + * shader engine and aggregates the number of waves that are in flight for the + * process whose pasid is provided as a parameter. The process could have ZERO + * or more queues running and submitting waves to compute units. + * + * @adev: Handle of device from which to get number of waves in flight + * @pasid: Identifies the process for which this query call is invoked + * @pasid_wave_cnt: Output parameter updated with number of waves in flight that + * belong to process with given pasid + * @max_waves_per_cu: Output parameter updated with maximum number of waves + * possible per Compute Unit + * + * Note: It's possible that the device has too many queues (oversubscription) + * in which case a VMID could be remapped to a different PASID. This could lead + * to an inaccurate wave count. Following is a high-level sequence: + * Time T1: vmid = getVmid(); vmid is associated with Pasid P1 + * Time T2: passId = getPasId(vmid); vmid is associated with Pasid P2 + * In the sequence above wave count obtained from time T1 will be incorrectly + * lost or added to total wave count. + * + * The registers that provide the waves in flight are: + * + * SPI_CSQ_WF_ACTIVE_STATUS - bit-map of queues per pipe. The bit is ON if a + * queue is slotted, OFF if there is no queue. A process could have ZERO or + * more queues slotted and submitting waves to be run on compute units. Even + * when there is a queue it is possible there could be zero wave fronts, this + * can happen when queue is waiting on top-of-pipe events - e.g. waitRegMem + * command + * + * For each bit that is ON from above: + * + * Read (SPI_CSQ_WF_ACTIVE_COUNT_0 + queue_idx) register. It provides the + * number of waves that are in flight for the queue at specified index. The + * index ranges from 0 to 7. + * + * If non-zero waves are in flight, read CP_HQD_VMID register to obtain VMID + * of the wave(s). + * + * Determine if VMID from above step maps to pasid provided as parameter. If + * it matches agrregate the wave count. That the VMID will not match pasid is + * a normal condition i.e. a device is expected to support multiple queues + * from multiple proceses. + * + * Reading registers referenced above involves programming GRBM appropriately + */ +void kgd_gfx_v9_get_cu_occupancy(struct amdgpu_device *adev, int pasid, + int *pasid_wave_cnt, int *max_waves_per_cu) +{ + int qidx; + int vmid; + int se_idx; + int sh_idx; + int se_cnt; + int sh_cnt; + int wave_cnt; + int queue_map; + int pasid_tmp; + int max_queue_cnt; + int vmid_wave_cnt = 0; + DECLARE_BITMAP(cp_queue_bitmap, KGD_MAX_QUEUES); + + lock_spi_csq_mutexes(adev); + soc15_grbm_select(adev, 1, 0, 0, 0); + + /* + * Iterate through the shader engines and arrays of the device + * to get number of waves in flight + */ + bitmap_complement(cp_queue_bitmap, adev->gfx.mec.queue_bitmap, + KGD_MAX_QUEUES); + max_queue_cnt = adev->gfx.mec.num_pipe_per_mec * + adev->gfx.mec.num_queue_per_pipe; + sh_cnt = adev->gfx.config.max_sh_per_se; + se_cnt = adev->gfx.config.max_shader_engines; + for (se_idx = 0; se_idx < se_cnt; se_idx++) { + for (sh_idx = 0; sh_idx < sh_cnt; sh_idx++) { + + amdgpu_gfx_select_se_sh(adev, se_idx, sh_idx, 0xffffffff); + queue_map = RREG32_SOC15(GC, 0, mmSPI_CSQ_WF_ACTIVE_STATUS); + + /* + * Assumption: queue map encodes following schema: four + * pipes per each micro-engine, with each pipe mapping + * eight queues. This schema is true for GFX9 devices + * and must be verified for newer device families + */ + for (qidx = 0; qidx < max_queue_cnt; qidx++) { + + /* Skip qeueus that are not associated with + * compute functions + */ + if (!test_bit(qidx, cp_queue_bitmap)) + continue; + + if (!(queue_map & (1 << qidx))) + continue; + + /* Get number of waves in flight and aggregate them */ + get_wave_count(adev, qidx, &wave_cnt, &vmid); + if (wave_cnt != 0) { + pasid_tmp = + RREG32(SOC15_REG_OFFSET(OSSSYS, 0, + mmIH_VMID_0_LUT) + vmid); + if (pasid_tmp == pasid) + vmid_wave_cnt += wave_cnt; + } + } + } + } + + amdgpu_gfx_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff); + soc15_grbm_select(adev, 0, 0, 0, 0); + unlock_spi_csq_mutexes(adev); + + /* Update the output parameters and return */ + *pasid_wave_cnt = vmid_wave_cnt; + *max_waves_per_cu = adev->gfx.cu_info.simd_per_cu * + adev->gfx.cu_info.max_waves_per_simd; +} + +void kgd_gfx_v9_program_trap_handler_settings(struct amdgpu_device *adev, + uint32_t vmid, uint64_t tba_addr, uint64_t tma_addr) +{ + lock_srbm(adev, 0, 0, 0, vmid); + + /* + * Program TBA registers + */ + WREG32_SOC15(GC, 0, mmSQ_SHADER_TBA_LO, + lower_32_bits(tba_addr >> 8)); + WREG32_SOC15(GC, 0, mmSQ_SHADER_TBA_HI, + upper_32_bits(tba_addr >> 8)); + + /* + * Program TMA registers + */ + WREG32_SOC15(GC, 0, mmSQ_SHADER_TMA_LO, + lower_32_bits(tma_addr >> 8)); + WREG32_SOC15(GC, 0, mmSQ_SHADER_TMA_HI, + upper_32_bits(tma_addr >> 8)); + + unlock_srbm(adev); +} + +const struct kfd2kgd_calls gfx_v9_kfd2kgd = { + .program_sh_mem_settings = kgd_gfx_v9_program_sh_mem_settings, + .set_pasid_vmid_mapping = kgd_gfx_v9_set_pasid_vmid_mapping, + .init_interrupts = kgd_gfx_v9_init_interrupts, + .hqd_load = kgd_gfx_v9_hqd_load, + .hiq_mqd_load = kgd_gfx_v9_hiq_mqd_load, + .hqd_sdma_load = kgd_hqd_sdma_load, + .hqd_dump = kgd_gfx_v9_hqd_dump, + .hqd_sdma_dump = kgd_hqd_sdma_dump, + .hqd_is_occupied = kgd_gfx_v9_hqd_is_occupied, + .hqd_sdma_is_occupied = kgd_hqd_sdma_is_occupied, + .hqd_destroy = kgd_gfx_v9_hqd_destroy, + .hqd_sdma_destroy = kgd_hqd_sdma_destroy, + .wave_control_execute = kgd_gfx_v9_wave_control_execute, + .get_atc_vmid_pasid_mapping_info = + kgd_gfx_v9_get_atc_vmid_pasid_mapping_info, + .set_vm_context_page_table_base = kgd_gfx_v9_set_vm_context_page_table_base, + .get_cu_occupancy = kgd_gfx_v9_get_cu_occupancy, + .program_trap_handler_settings = kgd_gfx_v9_program_trap_handler_settings, +}; |