diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c | 325 |
1 files changed, 312 insertions, 13 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c index 9378fc79e9ea..8ad7a7779e14 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c @@ -21,6 +21,7 @@ */ #include "amdgpu.h" #include "amdgpu_amdkfd.h" +#include "amdgpu_amdkfd_gfx_v10.h" #include "gc/gc_10_1_0_offset.h" #include "gc/gc_10_1_0_sh_mask.h" #include "athub/athub_2_0_0_offset.h" @@ -31,6 +32,7 @@ #include "v10_structs.h" #include "nv.h" #include "nvd.h" +#include <uapi/linux/kfd_ioctl.h> enum hqd_dequeue_request_type { NO_ACTION = 0, @@ -79,7 +81,7 @@ static void kgd_program_sh_mem_settings(struct amdgpu_device *adev, uint32_t vmi uint32_t sh_mem_config, uint32_t sh_mem_ape1_base, uint32_t sh_mem_ape1_limit, - uint32_t sh_mem_bases) + uint32_t sh_mem_bases, uint32_t inst) { lock_srbm(adev, 0, 0, 0, vmid); @@ -91,7 +93,7 @@ static void kgd_program_sh_mem_settings(struct amdgpu_device *adev, uint32_t vmi } static int kgd_set_pasid_vmid_mapping(struct amdgpu_device *adev, u32 pasid, - unsigned int vmid) + unsigned int vmid, uint32_t inst) { /* * We have to assume that there is no outstanding mapping. @@ -135,7 +137,8 @@ static int kgd_set_pasid_vmid_mapping(struct amdgpu_device *adev, u32 pasid, * but still works */ -static int kgd_init_interrupts(struct amdgpu_device *adev, uint32_t pipe_id) +static int kgd_init_interrupts(struct amdgpu_device *adev, uint32_t pipe_id, + uint32_t inst) { uint32_t mec; uint32_t pipe; @@ -205,7 +208,7 @@ static inline struct v10_sdma_mqd *get_sdma_mqd(void *mqd) static int kgd_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) + uint32_t wptr_mask, struct mm_struct *mm, uint32_t inst) { struct v10_compute_mqd *m; uint32_t *mqd_hqd; @@ -286,9 +289,9 @@ static int kgd_hqd_load(struct amdgpu_device *adev, void *mqd, static int kgd_hiq_mqd_load(struct amdgpu_device *adev, void *mqd, uint32_t pipe_id, uint32_t queue_id, - uint32_t doorbell_off) + uint32_t doorbell_off, uint32_t inst) { - struct amdgpu_ring *kiq_ring = &adev->gfx.kiq.ring; + struct amdgpu_ring *kiq_ring = &adev->gfx.kiq[0].ring; struct v10_compute_mqd *m; uint32_t mec, pipe; int r; @@ -303,7 +306,7 @@ static int kgd_hiq_mqd_load(struct amdgpu_device *adev, void *mqd, pr_debug("kfd: set HIQ, mec:%d, pipe:%d, queue:%d.\n", mec, pipe, queue_id); - spin_lock(&adev->gfx.kiq.ring_lock); + spin_lock(&adev->gfx.kiq[0].ring_lock); r = amdgpu_ring_alloc(kiq_ring, 7); if (r) { pr_err("Failed to alloc KIQ (%d).\n", r); @@ -330,7 +333,7 @@ static int kgd_hiq_mqd_load(struct amdgpu_device *adev, void *mqd, amdgpu_ring_commit(kiq_ring); out_unlock: - spin_unlock(&adev->gfx.kiq.ring_lock); + spin_unlock(&adev->gfx.kiq[0].ring_lock); release_queue(adev); return r; @@ -338,7 +341,7 @@ out_unlock: static int kgd_hqd_dump(struct amdgpu_device *adev, uint32_t pipe_id, uint32_t queue_id, - uint32_t (**dump)[2], uint32_t *n_regs) + uint32_t (**dump)[2], uint32_t *n_regs, uint32_t inst) { uint32_t i = 0, reg; #define HQD_N_REGS 56 @@ -469,7 +472,7 @@ static int kgd_hqd_sdma_dump(struct amdgpu_device *adev, static bool kgd_hqd_is_occupied(struct amdgpu_device *adev, uint64_t queue_address, uint32_t pipe_id, - uint32_t queue_id) + uint32_t queue_id, uint32_t inst) { uint32_t act; bool retval = false; @@ -510,7 +513,7 @@ static bool kgd_hqd_sdma_is_occupied(struct amdgpu_device *adev, void *mqd) static int kgd_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) + uint32_t queue_id, uint32_t inst) { enum hqd_dequeue_request_type type; unsigned long end_jiffies; @@ -673,7 +676,7 @@ static bool get_atc_vmid_pasid_mapping_info(struct amdgpu_device *adev, static int kgd_wave_control_execute(struct amdgpu_device *adev, uint32_t gfx_index_val, - uint32_t sq_cmd) + uint32_t sq_cmd, uint32_t inst) { uint32_t data = 0; @@ -708,8 +711,295 @@ static void set_vm_context_page_table_base(struct amdgpu_device *adev, adev->gfxhub.funcs->setup_vm_pt_regs(adev, vmid, page_table_base); } +/* + * GFX10 helper for wave launch stall requirements on debug trap setting. + * + * vmid: + * Target VMID to stall/unstall. + * + * stall: + * 0-unstall wave launch (enable), 1-stall wave launch (disable). + * After wavefront launch has been stalled, allocated waves must drain from + * SPI in order for debug trap settings to take effect on those waves. + * This is roughly a ~3500 clock cycle wait on SPI where a read on + * SPI_GDBG_WAVE_CNTL translates to ~32 clock cycles. + * KGD_GFX_V10_WAVE_LAUNCH_SPI_DRAIN_LATENCY indicates the number of reads required. + * + * NOTE: We can afford to clear the entire STALL_VMID field on unstall + * because current GFX10 chips cannot support multi-process debugging due to + * trap configuration and masking being limited to global scope. Always + * assume single process conditions. + * + */ + +#define KGD_GFX_V10_WAVE_LAUNCH_SPI_DRAIN_LATENCY 110 +static void kgd_gfx_v10_set_wave_launch_stall(struct amdgpu_device *adev, uint32_t vmid, bool stall) +{ + uint32_t data = RREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_WAVE_CNTL)); + int i; + + data = REG_SET_FIELD(data, SPI_GDBG_WAVE_CNTL, STALL_VMID, + stall ? 1 << vmid : 0); + + WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_WAVE_CNTL), data); + + if (!stall) + return; + + for (i = 0; i < KGD_GFX_V10_WAVE_LAUNCH_SPI_DRAIN_LATENCY; i++) + RREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_WAVE_CNTL)); +} + +uint32_t kgd_gfx_v10_enable_debug_trap(struct amdgpu_device *adev, + bool restore_dbg_registers, + uint32_t vmid) +{ + + mutex_lock(&adev->grbm_idx_mutex); + + kgd_gfx_v10_set_wave_launch_stall(adev, vmid, true); + + /* assume gfx off is disabled for the debug session if rlc restore not supported. */ + if (restore_dbg_registers) { + uint32_t data = 0; + + data = REG_SET_FIELD(data, SPI_GDBG_TRAP_CONFIG, + VMID_SEL, 1 << vmid); + data = REG_SET_FIELD(data, SPI_GDBG_TRAP_CONFIG, + TRAP_EN, 1); + WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_TRAP_CONFIG), data); + WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_TRAP_DATA0), 0); + WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_TRAP_DATA1), 0); + + kgd_gfx_v10_set_wave_launch_stall(adev, vmid, false); + + mutex_unlock(&adev->grbm_idx_mutex); + + return 0; + } + + WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_TRAP_MASK), 0); + + kgd_gfx_v10_set_wave_launch_stall(adev, vmid, false); + + mutex_unlock(&adev->grbm_idx_mutex); + + return 0; +} + +uint32_t kgd_gfx_v10_disable_debug_trap(struct amdgpu_device *adev, + bool keep_trap_enabled, + uint32_t vmid) +{ + mutex_lock(&adev->grbm_idx_mutex); + + kgd_gfx_v10_set_wave_launch_stall(adev, vmid, true); + + WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_TRAP_MASK), 0); + + kgd_gfx_v10_set_wave_launch_stall(adev, vmid, false); + + mutex_unlock(&adev->grbm_idx_mutex); + + return 0; +} + +int kgd_gfx_v10_validate_trap_override_request(struct amdgpu_device *adev, + uint32_t trap_override, + uint32_t *trap_mask_supported) +{ + *trap_mask_supported &= KFD_DBG_TRAP_MASK_DBG_ADDRESS_WATCH; + + /* The SPI_GDBG_TRAP_MASK register is global and affects all + * processes. Only allow OR-ing the address-watch bit, since + * this only affects processes under the debugger. Other bits + * should stay 0 to avoid the debugger interfering with other + * processes. + */ + if (trap_override != KFD_DBG_TRAP_OVERRIDE_OR) + return -EINVAL; + + return 0; +} + +uint32_t kgd_gfx_v10_set_wave_launch_trap_override(struct amdgpu_device *adev, + uint32_t vmid, + uint32_t trap_override, + uint32_t trap_mask_bits, + uint32_t trap_mask_request, + uint32_t *trap_mask_prev, + uint32_t kfd_dbg_trap_cntl_prev) +{ + uint32_t data, wave_cntl_prev; + + mutex_lock(&adev->grbm_idx_mutex); + + wave_cntl_prev = RREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_WAVE_CNTL)); + + kgd_gfx_v10_set_wave_launch_stall(adev, vmid, true); + + data = RREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_TRAP_MASK)); + *trap_mask_prev = REG_GET_FIELD(data, SPI_GDBG_TRAP_MASK, EXCP_EN); + + trap_mask_bits = (trap_mask_bits & trap_mask_request) | + (*trap_mask_prev & ~trap_mask_request); + + data = REG_SET_FIELD(data, SPI_GDBG_TRAP_MASK, EXCP_EN, trap_mask_bits); + data = REG_SET_FIELD(data, SPI_GDBG_TRAP_MASK, REPLACE, trap_override); + WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_TRAP_MASK), data); + + /* We need to preserve wave launch mode stall settings. */ + WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_WAVE_CNTL), wave_cntl_prev); + + mutex_unlock(&adev->grbm_idx_mutex); + + return 0; +} + +uint32_t kgd_gfx_v10_set_wave_launch_mode(struct amdgpu_device *adev, + uint8_t wave_launch_mode, + uint32_t vmid) +{ + uint32_t data = 0; + bool is_mode_set = !!wave_launch_mode; + + mutex_lock(&adev->grbm_idx_mutex); + + kgd_gfx_v10_set_wave_launch_stall(adev, vmid, true); + + data = REG_SET_FIELD(data, SPI_GDBG_WAVE_CNTL2, + VMID_MASK, is_mode_set ? 1 << vmid : 0); + data = REG_SET_FIELD(data, SPI_GDBG_WAVE_CNTL2, + MODE, is_mode_set ? wave_launch_mode : 0); + WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_WAVE_CNTL2), data); + + kgd_gfx_v10_set_wave_launch_stall(adev, vmid, false); + + mutex_unlock(&adev->grbm_idx_mutex); + + return 0; +} + +#define TCP_WATCH_STRIDE (mmTCP_WATCH1_ADDR_H - mmTCP_WATCH0_ADDR_H) +uint32_t kgd_gfx_v10_set_address_watch(struct amdgpu_device *adev, + uint64_t watch_address, + uint32_t watch_address_mask, + uint32_t watch_id, + uint32_t watch_mode, + uint32_t debug_vmid) +{ + uint32_t watch_address_high; + uint32_t watch_address_low; + uint32_t watch_address_cntl; + + watch_address_cntl = 0; + + watch_address_low = lower_32_bits(watch_address); + watch_address_high = upper_32_bits(watch_address) & 0xffff; + + watch_address_cntl = REG_SET_FIELD(watch_address_cntl, + TCP_WATCH0_CNTL, + VMID, + debug_vmid); + watch_address_cntl = REG_SET_FIELD(watch_address_cntl, + TCP_WATCH0_CNTL, + MODE, + watch_mode); + watch_address_cntl = REG_SET_FIELD(watch_address_cntl, + TCP_WATCH0_CNTL, + MASK, + watch_address_mask >> 7); + + /* Turning off this watch point until we set all the registers */ + watch_address_cntl = REG_SET_FIELD(watch_address_cntl, + TCP_WATCH0_CNTL, + VALID, + 0); + + WREG32((SOC15_REG_OFFSET(GC, 0, mmTCP_WATCH0_CNTL) + + (watch_id * TCP_WATCH_STRIDE)), + watch_address_cntl); + + WREG32((SOC15_REG_OFFSET(GC, 0, mmTCP_WATCH0_ADDR_H) + + (watch_id * TCP_WATCH_STRIDE)), + watch_address_high); + + WREG32((SOC15_REG_OFFSET(GC, 0, mmTCP_WATCH0_ADDR_L) + + (watch_id * TCP_WATCH_STRIDE)), + watch_address_low); + + /* Enable the watch point */ + watch_address_cntl = REG_SET_FIELD(watch_address_cntl, + TCP_WATCH0_CNTL, + VALID, + 1); + + WREG32((SOC15_REG_OFFSET(GC, 0, mmTCP_WATCH0_CNTL) + + (watch_id * TCP_WATCH_STRIDE)), + watch_address_cntl); + + return 0; +} + +uint32_t kgd_gfx_v10_clear_address_watch(struct amdgpu_device *adev, + uint32_t watch_id) +{ + uint32_t watch_address_cntl; + + watch_address_cntl = 0; + + WREG32((SOC15_REG_OFFSET(GC, 0, mmTCP_WATCH0_CNTL) + + (watch_id * TCP_WATCH_STRIDE)), + watch_address_cntl); + + return 0; +} + + +/* kgd_gfx_v10_get_iq_wait_times: Returns the mmCP_IQ_WAIT_TIME1/2 values + * The values read are: + * ib_offload_wait_time -- Wait Count for Indirect Buffer Offloads. + * atomic_offload_wait_time -- Wait Count for L2 and GDS Atomics Offloads. + * wrm_offload_wait_time -- Wait Count for WAIT_REG_MEM Offloads. + * gws_wait_time -- Wait Count for Global Wave Syncs. + * que_sleep_wait_time -- Wait Count for Dequeue Retry. + * sch_wave_wait_time -- Wait Count for Scheduling Wave Message. + * sem_rearm_wait_time -- Wait Count for Semaphore re-arm. + * deq_retry_wait_time -- Wait Count for Global Wave Syncs. + */ +void kgd_gfx_v10_get_iq_wait_times(struct amdgpu_device *adev, + uint32_t *wait_times) + +{ + *wait_times = RREG32(SOC15_REG_OFFSET(GC, 0, mmCP_IQ_WAIT_TIME2)); +} + +void kgd_gfx_v10_build_grace_period_packet_info(struct amdgpu_device *adev, + uint32_t wait_times, + uint32_t grace_period, + uint32_t *reg_offset, + uint32_t *reg_data) +{ + *reg_data = wait_times; + + /* + * The CP cannont handle a 0 grace period input and will result in + * an infinite grace period being set so set to 1 to prevent this. + */ + if (grace_period == 0) + grace_period = 1; + + *reg_data = REG_SET_FIELD(*reg_data, + CP_IQ_WAIT_TIME2, + SCH_WAVE, + grace_period); + + *reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_IQ_WAIT_TIME2); +} + static void program_trap_handler_settings(struct amdgpu_device *adev, - uint32_t vmid, uint64_t tba_addr, uint64_t tma_addr) + uint32_t vmid, uint64_t tba_addr, uint64_t tma_addr, + uint32_t inst) { lock_srbm(adev, 0, 0, 0, vmid); @@ -750,5 +1040,14 @@ const struct kfd2kgd_calls gfx_v10_kfd2kgd = { .get_atc_vmid_pasid_mapping_info = get_atc_vmid_pasid_mapping_info, .set_vm_context_page_table_base = set_vm_context_page_table_base, + .enable_debug_trap = kgd_gfx_v10_enable_debug_trap, + .disable_debug_trap = kgd_gfx_v10_disable_debug_trap, + .validate_trap_override_request = kgd_gfx_v10_validate_trap_override_request, + .set_wave_launch_trap_override = kgd_gfx_v10_set_wave_launch_trap_override, + .set_wave_launch_mode = kgd_gfx_v10_set_wave_launch_mode, + .set_address_watch = kgd_gfx_v10_set_address_watch, + .clear_address_watch = kgd_gfx_v10_clear_address_watch, + .get_iq_wait_times = kgd_gfx_v10_get_iq_wait_times, + .build_grace_period_packet_info = kgd_gfx_v10_build_grace_period_packet_info, .program_trap_handler_settings = program_trap_handler_settings, }; |