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441 lines
26 KiB
441 lines
26 KiB
from __future__ import annotations
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from typing import Any, Optional, cast
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import os, ctypes, ctypes.util, functools, pathlib, mmap, errno, array, contextlib, sys
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assert sys.platform != 'win32'
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from dataclasses import dataclass
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from tinygrad.runtime.support.hcq import HCQCompiled, HCQAllocator, HCQBuffer, HWQueue, CLikeArgsState, HCQSignal, HCQProgram
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from tinygrad.ops import sint
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from tinygrad.device import BufferSpec
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from tinygrad.helpers import getenv, to_mv, round_up, data64_le, mv_address
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from tinygrad.renderer.cstyle import AMDRenderer
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from tinygrad.runtime.autogen import kfd, hsa, amd_gpu, libc
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from tinygrad.runtime.support.compiler_hip import AMDCompiler
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from tinygrad.runtime.support.elf import elf_loader
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if getenv("IOCTL"): import extra.hip_gpu_driver.hip_ioctl # noqa: F401 # pylint: disable=unused-import
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if getenv("MOCKGPU"): import extra.mockgpu.mockgpu # noqa: F401 # pylint: disable=unused-import
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def is_usable_gpu(gpu_id):
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with contextlib.suppress(OSError): return int(pathlib.Path(gpu_id).read_text()) != 0
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return False
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regBIF_BX_PF1_GPU_HDP_FLUSH_REQ, regBIF_BX_PF1_GPU_HDP_FLUSH_DONE = 0x0106, 0x0107
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EVENT_INDEX_PARTIAL_FLUSH = 4 # based on a comment in nvd.h
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WAIT_REG_MEM_FUNCTION_GEQ = 5 # >=
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COMPUTE_SHADER_EN, FORCE_START_AT_000, CS_W32_EN = (1 << 0), (1 << 2), (1 << 15)
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def gfxreg(reg): return reg + 0x00001260 - amd_gpu.PACKET3_SET_SH_REG_START
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def nbioreg(reg): return reg + 0x00000d20 # NBIO_BASE__INST0_SEG2
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class AMDSignal(HCQSignal):
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def __init__(self, base_addr:Optional[int]=None, **kwargs):
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super().__init__(AMDDevice.signals_pool.pop() if base_addr is None else base_addr, **kwargs, timestamp_divider=100)
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def __del__(self):
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if isinstance(self.base_addr, int): AMDDevice.signals_pool.append(self.base_addr)
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def _sleep(self, time_spent_waiting_ms:int):
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# Resonable to sleep for long workloads (which take more than 2s) and only timeline signals.
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if time_spent_waiting_ms > 2000 and self.timeline_for_device is not None:
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kfd.AMDKFD_IOC_WAIT_EVENTS(AMDDevice.kfd, events_ptr=self.timeline_for_device.queue_event_arr_ptr, num_events=1, wait_for_all=1, timeout=200)
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class AMDComputeQueue(HWQueue):
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def __del__(self):
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if self.binded_device is not None:
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self.binded_device.allocator.free(self.hw_page, self.hw_page.size, BufferSpec(cpu_access=True, nolru=True, uncached=True))
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def pkt3(self, cmd, *vals): self.q(amd_gpu.PACKET3(cmd, len(vals) - 1), *vals)
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def wait_reg_mem(self, value, mask=0xffffffff, mem=None, reg_req=None, reg_done=None):
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wrm_info_dw = amd_gpu.WAIT_REG_MEM_MEM_SPACE(int(mem is not None)) | amd_gpu.WAIT_REG_MEM_OPERATION(int(mem is None)) \
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| amd_gpu.WAIT_REG_MEM_FUNCTION(WAIT_REG_MEM_FUNCTION_GEQ) | amd_gpu.WAIT_REG_MEM_ENGINE(0)
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self.pkt3(amd_gpu.PACKET3_WAIT_REG_MEM, wrm_info_dw, *(data64_le(mem) if mem is not None else (reg_req, reg_done)), value, mask, 4)
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def acquire_mem(self, addr=0x0, sz=(1 << 64)-1, gli=1, glm=1, glk=1, glv=1, gl1=1, gl2=1):
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cache_flags_dw = amd_gpu.PACKET3_ACQUIRE_MEM_GCR_CNTL_GLI_INV(gli) \
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| amd_gpu.PACKET3_ACQUIRE_MEM_GCR_CNTL_GLM_INV(glm) | amd_gpu.PACKET3_ACQUIRE_MEM_GCR_CNTL_GLM_WB(glm) \
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| amd_gpu.PACKET3_ACQUIRE_MEM_GCR_CNTL_GLK_INV(glk) | amd_gpu.PACKET3_ACQUIRE_MEM_GCR_CNTL_GLK_WB(glk) \
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| amd_gpu.PACKET3_ACQUIRE_MEM_GCR_CNTL_GLV_INV(glv) | amd_gpu.PACKET3_ACQUIRE_MEM_GCR_CNTL_GL1_INV(gl1) \
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| amd_gpu.PACKET3_ACQUIRE_MEM_GCR_CNTL_GL2_INV(gl2) | amd_gpu.PACKET3_ACQUIRE_MEM_GCR_CNTL_GL2_WB(gl2)
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self.pkt3(amd_gpu.PACKET3_ACQUIRE_MEM, 0, *data64_le(sz), *data64_le(addr), 0, cache_flags_dw)
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def release_mem(self, address, value, data_sel, int_sel, ctxid=0, cache_flush=False):
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cache_flags_dw = 0 if not cache_flush else (amd_gpu.PACKET3_RELEASE_MEM_GCR_GLV_INV | amd_gpu.PACKET3_RELEASE_MEM_GCR_GL1_INV \
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| amd_gpu.PACKET3_RELEASE_MEM_GCR_GL2_INV | amd_gpu.PACKET3_RELEASE_MEM_GCR_GLM_WB \
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| amd_gpu.PACKET3_RELEASE_MEM_GCR_GLM_INV | amd_gpu.PACKET3_RELEASE_MEM_GCR_GL2_WB | amd_gpu.PACKET3_RELEASE_MEM_GCR_SEQ)
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event_dw = amd_gpu.PACKET3_RELEASE_MEM_EVENT_TYPE(amd_gpu.CACHE_FLUSH_AND_INV_TS_EVENT) \
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| amd_gpu.PACKET3_RELEASE_MEM_EVENT_INDEX(amd_gpu.event_index__mec_release_mem__end_of_pipe)
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memsel_dw = amd_gpu.PACKET3_RELEASE_MEM_DATA_SEL(data_sel) | amd_gpu.PACKET3_RELEASE_MEM_INT_SEL(int_sel) | amd_gpu.PACKET3_RELEASE_MEM_DST_SEL(0)
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self.pkt3(amd_gpu.PACKET3_RELEASE_MEM, event_dw | cache_flags_dw, memsel_dw, *data64_le(address), *data64_le(value), ctxid)
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def memory_barrier(self):
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self.wait_reg_mem(reg_req=nbioreg(regBIF_BX_PF1_GPU_HDP_FLUSH_REQ), reg_done=nbioreg(regBIF_BX_PF1_GPU_HDP_FLUSH_DONE), value=0xffffffff)
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self.acquire_mem()
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return self
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def exec(self, prg:AMDProgram, args_state:CLikeArgsState, global_size:tuple[sint, ...], local_size:tuple[sint, ...]):
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self.bind_args_state(args_state)
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self.acquire_mem(gli=0, gl2=0)
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if prg.enable_private_segment_sgpr:
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scratch_hilo = data64_le(prg.dev.scratch.va_addr)
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# sgpr word1 bit31 enables swizzle
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# sgpr word3 = 0x14 << 12 | 2 << 28 | 2 << 21 | 1 << 23
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user_regs = [scratch_hilo[0], scratch_hilo[1] | 1 << 31, 0xffffffff, 0x20c14000] if prg.enable_private_segment_sgpr else []
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else: user_regs = []
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if prg.enable_dispatch_ptr:
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dp = hsa.hsa_kernel_dispatch_packet_t.from_address(dp_addr:=args_state.ptr + prg.kernargs_segment_size)
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self.bind_sints(*local_size, struct=dp, start_field='workgroup_size_x', fmt='H')
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self.bind_sints(*[g*l for g,l in zip(global_size, local_size)], struct=dp, start_field='grid_size_x', fmt='I')
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dp.group_segment_size, dp.private_segment_size, dp.kernarg_address = prg.group_segment_size, prg.private_segment_size, args_state.ptr
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user_regs += [*data64_le(dp_addr)]
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user_regs += [*data64_le(args_state.ptr)]
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self.pkt3(amd_gpu.PACKET3_SET_SH_REG, gfxreg(amd_gpu.regCOMPUTE_PGM_LO), *data64_le(prg.prog_addr >> 8))
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self.pkt3(amd_gpu.PACKET3_SET_SH_REG, gfxreg(amd_gpu.regCOMPUTE_PGM_RSRC1), prg.rsrc1, prg.rsrc2)
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self.pkt3(amd_gpu.PACKET3_SET_SH_REG, gfxreg(amd_gpu.regCOMPUTE_PGM_RSRC3), 0)
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self.pkt3(amd_gpu.PACKET3_SET_SH_REG, gfxreg(amd_gpu.regCOMPUTE_TMPRING_SIZE), prg.dev.tmpring_size)
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if prg.dev.has_scratch_base_registers:
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self.pkt3(amd_gpu.PACKET3_SET_SH_REG, gfxreg(amd_gpu.regCOMPUTE_DISPATCH_SCRATCH_BASE_LO), *data64_le(prg.dev.scratch.va_addr >> 8))
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if prg.dev.target < 110000: self.pkt3(amd_gpu.PACKET3_SET_SH_REG, gfxreg(amd_gpu.mmCP_COHER_START_DELAY), 0x20)
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self.pkt3(amd_gpu.PACKET3_SET_SH_REG, gfxreg(amd_gpu.regCOMPUTE_RESTART_X), 0, 0, 0, 0)
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self.pkt3(amd_gpu.PACKET3_SET_SH_REG, gfxreg(amd_gpu.regCOMPUTE_STATIC_THREAD_MGMT_SE0), 0xFFFFFFFF, 0xFFFFFFFF)
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self.pkt3(amd_gpu.PACKET3_SET_SH_REG, gfxreg(amd_gpu.regCOMPUTE_STATIC_THREAD_MGMT_SE2), 0xFFFFFFFF, 0xFFFFFFFF)
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self.pkt3(amd_gpu.PACKET3_SET_SH_REG, gfxreg(amd_gpu.regCOMPUTE_STATIC_THREAD_MGMT_SE4), 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF)
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self.pkt3(amd_gpu.PACKET3_SET_SH_REG, gfxreg(amd_gpu.regCOMPUTE_USER_DATA_0), *user_regs)
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self.pkt3(amd_gpu.PACKET3_SET_SH_REG, gfxreg(amd_gpu.regCOMPUTE_START_X), 0, 0, 0, *local_size, 0, 0)
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self.pkt3(amd_gpu.PACKET3_SET_SH_REG, gfxreg(amd_gpu.regCOMPUTE_RESOURCE_LIMITS), 0)
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self.pkt3(amd_gpu.PACKET3_DISPATCH_DIRECT, *global_size, CS_W32_EN | FORCE_START_AT_000 | COMPUTE_SHADER_EN)
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self.pkt3(amd_gpu.PACKET3_EVENT_WRITE, amd_gpu.EVENT_TYPE(amd_gpu.CS_PARTIAL_FLUSH) | amd_gpu.EVENT_INDEX(EVENT_INDEX_PARTIAL_FLUSH))
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return self
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def wait(self, signal:AMDSignal, value:sint=0):
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self.wait_reg_mem(mem=signal.value_addr, value=value, mask=0xffffffff)
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return self
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def timestamp(self, signal:AMDSignal):
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self.release_mem(signal.timestamp_addr, 0, amd_gpu.data_sel__mec_release_mem__send_gpu_clock_counter, amd_gpu.int_sel__mec_release_mem__none)
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return self
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def signal(self, signal:AMDSignal, value:sint=0):
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# NOTE: this needs an EOP buffer on the queue or it will NULL pointer
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self.release_mem(signal.value_addr, value, amd_gpu.data_sel__mec_release_mem__send_32_bit_low,
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amd_gpu.int_sel__mec_release_mem__send_interrupt_after_write_confirm, cache_flush=True)
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if (dev:=signal.timeline_for_device) is not None:
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self.release_mem(dev.queue_event_mailbox_ptr, dev.queue_event.event_id, amd_gpu.data_sel__mec_release_mem__send_32_bit_low,
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amd_gpu.int_sel__mec_release_mem__send_interrupt_after_write_confirm, ctxid=dev.queue_event.event_id)
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return self
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def bind(self, dev:AMDDevice):
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self.binded_device = dev
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self.hw_page = dev.allocator.alloc(len(self._q) * 4, BufferSpec(cpu_access=True, nolru=True, uncached=True))
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hw_view = to_mv(self.hw_page.va_addr, self.hw_page.size).cast("I")
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for i, value in enumerate(self._q): hw_view[i] = value
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self.indirect_cmd = [amd_gpu.PACKET3(amd_gpu.PACKET3_INDIRECT_BUFFER, 2), *data64_le(self.hw_page.va_addr),
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len(self._q) | amd_gpu.INDIRECT_BUFFER_VALID]
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self._q = hw_view
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return self
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def _submit(self, dev:AMDDevice):
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cmds = self.indirect_cmd if dev == self.binded_device else self._q
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for i, value in enumerate(cmds): dev.compute_queue.ring[(dev.compute_queue.put_value + i) % len(dev.compute_queue.ring)] = value
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dev.compute_queue.put_value += len(cmds)
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dev.compute_queue.write_ptr[0] = dev.compute_queue.put_value
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dev.compute_queue.doorbell[0] = dev.compute_queue.put_value
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SDMA_MAX_COPY_SIZE = 0x400000
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class AMDCopyQueue(HWQueue):
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def __init__(self):
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self.internal_cmd_sizes = []
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super().__init__()
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def q(self, *arr):
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super().q(*arr)
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self.internal_cmd_sizes.append(len(arr))
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def copy(self, dest:sint, src:sint, copy_size:int):
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copied, copy_commands = 0, (copy_size + SDMA_MAX_COPY_SIZE - 1) // SDMA_MAX_COPY_SIZE
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for _ in range(copy_commands):
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step_copy_size = min(copy_size - copied, SDMA_MAX_COPY_SIZE)
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self.q(amd_gpu.SDMA_OP_COPY | amd_gpu.SDMA_PKT_COPY_LINEAR_HEADER_SUB_OP(amd_gpu.SDMA_SUBOP_COPY_LINEAR),
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amd_gpu.SDMA_PKT_COPY_LINEAR_COUNT_COUNT(step_copy_size - 1), 0, *data64_le(src + copied), *data64_le(dest + copied))
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copied += step_copy_size
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return self
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def signal(self, signal:AMDSignal, value:sint=0):
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self.q(amd_gpu.SDMA_OP_FENCE | amd_gpu.SDMA_PKT_FENCE_HEADER_MTYPE(3), *data64_le(signal.value_addr), value)
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if (dev:=signal.timeline_for_device) is not None:
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self.q(amd_gpu.SDMA_OP_FENCE | amd_gpu.SDMA_PKT_FENCE_HEADER_MTYPE(3), *data64_le(dev.queue_event_mailbox_ptr), dev.queue_event.event_id)
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self.q(amd_gpu.SDMA_OP_TRAP, amd_gpu.SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(dev.queue_event.event_id))
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return self
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def wait(self, signal:AMDSignal, value:sint=0):
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self.q(amd_gpu.SDMA_OP_POLL_REGMEM | amd_gpu.SDMA_PKT_POLL_REGMEM_HEADER_FUNC(WAIT_REG_MEM_FUNCTION_GEQ) | \
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amd_gpu.SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1), *data64_le(signal.value_addr), value, 0xffffffff,
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amd_gpu.SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(0x04) | amd_gpu.SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff))
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return self
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def timestamp(self, signal:AMDSignal):
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self.q(amd_gpu.SDMA_OP_TIMESTAMP | amd_gpu.SDMA_PKT_TIMESTAMP_GET_HEADER_SUB_OP(amd_gpu.SDMA_SUBOP_TIMESTAMP_GET_GLOBAL),
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*data64_le(signal.timestamp_addr))
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return self
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def _submit(self, dev:AMDDevice):
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if dev.sdma_queue.put_value - dev.sdma_queue.read_ptr[0] > dev.sdma_queue.ring.nbytes: raise RuntimeError("SDMA queue overrun")
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tail_blit_dword = 0
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for cmdsz in self.internal_cmd_sizes:
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if (tail_blit_dword + cmdsz) * 4 >= dev.sdma_queue.ring.nbytes - dev.sdma_queue.put_value % dev.sdma_queue.ring.nbytes: break
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tail_blit_dword += cmdsz
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start_idx = (dev.sdma_queue.put_value % dev.sdma_queue.ring.nbytes) // 4
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dev.sdma_queue.ring[start_idx : start_idx + tail_blit_dword] = array.array('I', self._q[:tail_blit_dword])
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dev.sdma_queue.put_value += tail_blit_dword * 4
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if (rem_packet_cnt := len(self._q) - tail_blit_dword) > 0:
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zero_fill = dev.sdma_queue.ring.nbytes - dev.sdma_queue.put_value % dev.sdma_queue.ring.nbytes
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ctypes.memset(mv_address(dev.sdma_queue.ring) + (dev.sdma_queue.put_value % dev.sdma_queue.ring.nbytes), 0, zero_fill)
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dev.sdma_queue.put_value += zero_fill
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dev.sdma_queue.ring[0:rem_packet_cnt] = array.array('I', self._q[tail_blit_dword:])
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dev.sdma_queue.put_value += rem_packet_cnt * 4
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dev.sdma_queue.write_ptr[0] = dev.sdma_queue.put_value
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dev.sdma_queue.doorbell[0] = dev.sdma_queue.put_value
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class AMDProgram(HCQProgram):
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def __init__(self, dev:AMDDevice, name:str, lib:bytes):
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# TODO; this API needs the type signature of the function and global_size/local_size
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self.dev: AMDDevice = dev
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self.name, self.lib = name, lib
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image, sections, _ = elf_loader(self.lib)
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self.lib_gpu = self.dev.allocator.alloc(round_up(image.nbytes, 0x1000), BufferSpec(cpu_access=True, nolru=True))
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ctypes.memmove(self.lib_gpu.va_addr, mv_address(image), image.nbytes)
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entry_point = min(sh.header.sh_addr for sh in sections if sh.header.sh_type == libc.SHT_PROGBITS and sh.header.sh_flags & libc.SHF_ALLOC)
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self.group_segment_size = image[entry_point:entry_point+4].cast("I")[0]
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self.private_segment_size = image[entry_point+4:entry_point+8].cast("I")[0]
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self.kernargs_segment_size = image[entry_point+8:entry_point+12].cast("I")[0]
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lds_size = ((self.group_segment_size + 511) // 512) & 0x1FF
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if lds_size > (self.dev.properties['lds_size_in_kb'] * 1024) // 512: raise RuntimeError("Too many resources requsted: group_segment_size")
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if self.private_segment_size > self.dev.max_private_segment_size: raise RuntimeError("Too many resources requsted: private_segment_size")
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code = hsa.amd_kernel_code_t.from_address(self.lib_gpu.va_addr + entry_point) # NOTE: this is wrong, it's not this object
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assert code.kernel_code_properties & 0x400 == 0x400 # ENABLE_WAVEFRONT_SIZE32
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# Set rsrc1.priv=1 on gfx11 to workaround cwsr.
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self.rsrc1: int = code.compute_pgm_rsrc1 | ((1 << 20) if 110000 <= self.dev.target < 120000 else 0)
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self.rsrc2: int = code.compute_pgm_rsrc2 | (lds_size << 15)
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self.prog_addr: int = self.lib_gpu.va_addr + entry_point + code.kernel_code_entry_byte_offset
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# Some programs use hsa_kernel_dispatch_packet_t to read workgroup sizes during execution.
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# The packet is represented as a pointer and set up in SGPRs. Space for the packet is allocated as part of the kernel arguments.
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self.enable_dispatch_ptr: int = code.kernel_code_properties & hsa.AMD_KERNEL_CODE_PROPERTIES_ENABLE_SGPR_DISPATCH_PTR
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self.enable_private_segment_sgpr: int = code.kernel_code_properties & hsa.AMD_KERNEL_CODE_PROPERTIES_ENABLE_SGPR_PRIVATE_SEGMENT_BUFFER
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additional_alloc_sz = ctypes.sizeof(hsa.hsa_kernel_dispatch_packet_t) if self.enable_dispatch_ptr else 0
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super().__init__(CLikeArgsState, self.dev, self.name, kernargs_alloc_size=self.kernargs_segment_size+additional_alloc_sz)
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def __del__(self):
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if hasattr(self, 'lib_gpu'): self.dev.allocator.free(self.lib_gpu, self.lib_gpu.size, BufferSpec(cpu_access=True, nolru=True))
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class AMDAllocator(HCQAllocator['AMDDevice']):
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def __init__(self, dev:AMDDevice): super().__init__(dev, batch_size=SDMA_MAX_COPY_SIZE)
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def _alloc(self, size:int, options:BufferSpec) -> HCQBuffer:
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if options.host: return self.dev._gpu_alloc(size, host=True)
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if options.cpu_access and options.uncached: return self.dev._gpu_alloc(size, uncached=True)
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return self.dev._gpu_alloc(size, cpu_access=options.cpu_access)
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def _free(self, opaque, options:BufferSpec):
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self.dev.synchronize()
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self.dev._gpu_free(opaque)
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def map(self, buf:HCQBuffer): self.dev._gpu_map(buf._base if buf._base is not None else buf)
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MAP_FIXED, MAP_NORESERVE = 0x10, 0x400
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@dataclass
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class AMDQueueDesc:
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ring: memoryview
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read_ptr: memoryview
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write_ptr: memoryview
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doorbell: memoryview
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put_value: int = 0
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class AMDDevice(HCQCompiled):
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kfd:int = -1
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event_page:Any = None # TODO: fix types in kfd, Optional[kfd.struct_kfd_ioctl_alloc_memory_of_gpu_args]
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signals_page:Any = None
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signals_pool:list[int] = []
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gpus:list[pathlib.Path] = []
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def _gpu_map(self, mem:HCQBuffer):
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if self.gpu_id in getattr(mem.meta, "mapped_gpu_ids", []): return
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mem.meta.__setattr__("mapped_gpu_ids", getattr(mem.meta, "mapped_gpu_ids", []) + [self.gpu_id])
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c_gpus = (ctypes.c_int32 * len(mem.meta.mapped_gpu_ids))(*mem.meta.mapped_gpu_ids)
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stm = kfd.AMDKFD_IOC_MAP_MEMORY_TO_GPU(self.kfd, handle=mem.meta.handle, device_ids_array_ptr=ctypes.addressof(c_gpus),
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n_devices=len(mem.meta.mapped_gpu_ids))
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assert stm.n_success == len(mem.meta.mapped_gpu_ids)
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def _gpu_alloc(self, size:int, host=False, uncached=False, cpu_access=False) -> HCQBuffer:
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flags = kfd.KFD_IOC_ALLOC_MEM_FLAGS_WRITABLE | kfd.KFD_IOC_ALLOC_MEM_FLAGS_EXECUTABLE | kfd.KFD_IOC_ALLOC_MEM_FLAGS_NO_SUBSTITUTE
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if uncached: flags |= kfd.KFD_IOC_ALLOC_MEM_FLAGS_COHERENT | kfd.KFD_IOC_ALLOC_MEM_FLAGS_UNCACHED | kfd.KFD_IOC_ALLOC_MEM_FLAGS_GTT
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else: flags |= (kfd.KFD_IOC_ALLOC_MEM_FLAGS_USERPTR if host else kfd.KFD_IOC_ALLOC_MEM_FLAGS_VRAM)
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if cpu_access or host: flags |= kfd.KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC
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if host: buf = addr = libc.mmap(0, size, mmap.PROT_READ | mmap.PROT_WRITE, mmap.MAP_SHARED | mmap.MAP_ANONYMOUS, -1, 0)
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else: buf, addr = 0, libc.mmap(0, size, 0, mmap.MAP_PRIVATE | mmap.MAP_ANONYMOUS | MAP_NORESERVE, -1, 0)
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assert addr != 0xffffffffffffffff
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try: mem = kfd.AMDKFD_IOC_ALLOC_MEMORY_OF_GPU(self.kfd, va_addr=addr, size=size, base=addr, length=size, gpu_id=self.gpu_id,
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flags=flags, mmap_offset=buf, cpu_addr=addr)
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except OSError as e:
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if e.errno == errno.EINVAL and (flags & kfd.KFD_IOC_ALLOC_MEM_FLAGS_VRAM) and cpu_access:
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raise MemoryError("Cannot allocate host-visible VRAM. Ensure the resizable BAR option is enabled on your system.") from e
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if e.errno == errno.ENOMEM: raise MemoryError("Cannot allocate memory: no memory is available.") from e
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raise
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if not host:
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buf = libc.mmap(mem.va_addr, mem.size, mmap.PROT_READ | mmap.PROT_WRITE, mmap.MAP_SHARED | MAP_FIXED, self.drm_fd, mem.mmap_offset)
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assert addr == buf == mem.va_addr
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self._gpu_map(hcqbuf:=HCQBuffer(mem.va_addr, mem.size, meta=mem))
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return hcqbuf
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def _gpu_free(self, mem:HCQBuffer):
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if len(gpus:=getattr(mem.meta, "mapped_gpu_ids", [])):
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c_gpus = (ctypes.c_int32 * len(gpus))(*gpus)
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stm = kfd.AMDKFD_IOC_UNMAP_MEMORY_FROM_GPU(self.kfd, handle=mem.meta.handle, device_ids_array_ptr=ctypes.addressof(c_gpus), n_devices=len(gpus))
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assert stm.n_success == len(gpus)
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libc.munmap(mem.va_addr, mem.size)
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kfd.AMDKFD_IOC_FREE_MEMORY_OF_GPU(self.kfd, handle=mem.meta.handle)
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def __init__(self, device:str=""):
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if AMDDevice.kfd == -1:
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AMDDevice.kfd = os.open("/dev/kfd", os.O_RDWR)
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gpus = [g.parent for g in pathlib.Path("/sys/devices/virtual/kfd/kfd/topology/nodes").glob("*/gpu_id") if is_usable_gpu(g)]
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gpus = sorted(gpus, key=lambda x: int(x.name.split('/')[-1]))
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visible_devices = [int(x) for x in (getenv('VISIBLE_DEVICES', getenv('HIP_VISIBLE_DEVICES', ''))).split(',') if x.strip()]
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AMDDevice.gpus = [gpus[x] for x in visible_devices] if visible_devices else gpus
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self.device_id = int(device.split(":")[1]) if ":" in device else 0
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if self.device_id >= len(AMDDevice.gpus): raise RuntimeError(f"No device found for {device}. Requesting more devices than the system has?")
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with open(f"{AMDDevice.gpus[self.device_id]}/gpu_id", "r") as f: self.gpu_id = int(f.read())
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with open(f"{AMDDevice.gpus[self.device_id]}/properties", "r") as f: self.properties = {line.split()[0]: int(line.split()[1]) for line in f}
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self.drm_fd = os.open(f"/dev/dri/renderD{self.properties['drm_render_minor']}", os.O_RDWR)
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self.target = int(self.properties['gfx_target_version'])
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self.arch = "gfx%d%x%x" % (self.target // 10000, (self.target // 100) % 100, self.target % 100)
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if self.target < 100300 or self.target >= 120000: raise RuntimeError(f"Unsupported arch: {self.arch}")
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kfd.AMDKFD_IOC_ACQUIRE_VM(AMDDevice.kfd, drm_fd=self.drm_fd, gpu_id=self.gpu_id)
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if AMDDevice.event_page is None:
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AMDDevice.signals_page = self._gpu_alloc(16 * 65536, uncached=True)
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AMDDevice.event_page = self._gpu_alloc(0x8000, uncached=True)
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AMDDevice.signals_pool = [self.signals_page.va_addr + off for off in range(0, AMDDevice.signals_page.size, 16)]
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kfd.AMDKFD_IOC_CREATE_EVENT(AMDDevice.kfd, event_page_offset=AMDDevice.event_page.meta.handle)
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else:
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self._gpu_map(AMDDevice.signals_page)
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self._gpu_map(AMDDevice.event_page)
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# Scratch setup
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max_cu_id = self.properties['simd_count'] // self.properties['simd_per_cu'] - 1
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max_wave_id = self.properties['max_waves_per_simd'] * self.properties['simd_per_cu'] - 1
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self.max_private_segment_size = 4096
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# <gfx103 requires alignment of 1024, >=gfx11 requires 256
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wave_scratch_len = round_up(((max_wave_id + 1) * self.max_private_segment_size), 256 if self.target >= 110000 else 1024)
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self.scratch_len = (max_cu_id + 1) * self.properties['max_slots_scratch_cu'] * wave_scratch_len
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self.scratch = self._gpu_alloc(self.scratch_len)
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self.has_scratch_base_registers = self.target >= 110000
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engines = self.properties['array_count'] // self.properties['simd_arrays_per_engine']
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waves = wave_scratch_len // (256 if self.target >= 110000 else 1024)
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# >=gfx11 wavesize is per SE
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wavesize = self.scratch_len // ((wave_scratch_len * engines) if self.target >= 110000 else wave_scratch_len)
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self.tmpring_size = waves << 12 | wavesize
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# https://gitlab.freedesktop.org/agd5f/linux/-/blob/a1fc9f584c4aaf8bc1ebfa459fc57a3f26a290d8/drivers/gpu/drm/amd/amdkfd/kfd_queue.c#L391
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sgrp_size_per_cu, lds_size_per_cu, hwreg_size_per_cu = 0x4000, 0x10000, 0x1000
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vgpr_size_per_cu = 0x60000 if self.target in {110000, 110001, 120000, 120001} else 0x40000
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wg_data_size = round_up((vgpr_size_per_cu + sgrp_size_per_cu + lds_size_per_cu + hwreg_size_per_cu) * (max_cu_id + 1), mmap.PAGESIZE)
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ctl_stack_size = round_up(12 * (max_cu_id + 1) * (max_wave_id + 1) + 8 + 40, mmap.PAGESIZE)
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self.debug_memory_size = round_up((max_cu_id + 1) * (max_wave_id + 1) * 32, 64)
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self.compute_queue = self._alloc_queue(kfd.KFD_IOC_QUEUE_TYPE_COMPUTE, 0x100000, ctx_save_restore_size=wg_data_size + ctl_stack_size,
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eop_buffer_size=0x1000, ctl_stack_size=ctl_stack_size)
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self.sdma_queue = self._alloc_queue(kfd.KFD_IOC_QUEUE_TYPE_SDMA, 0x100000)
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self.queue_event = kfd.AMDKFD_IOC_CREATE_EVENT(AMDDevice.kfd, event_type=kfd.KFD_IOC_EVENT_SIGNAL, auto_reset=1)
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self.queue_event_mailbox_ptr = AMDDevice.event_page.va_addr + self.queue_event.event_slot_index * 8
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self.queue_event_arr = (kfd.struct_kfd_event_data)(event_id=self.queue_event.event_id)
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self.queue_event_arr_ptr = ctypes.addressof(self.queue_event_arr)
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self.mem_fault_event = kfd.AMDKFD_IOC_CREATE_EVENT(AMDDevice.kfd, event_type=kfd.KFD_IOC_EVENT_MEMORY)
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self.hw_fault_event = kfd.AMDKFD_IOC_CREATE_EVENT(AMDDevice.kfd, event_type=kfd.KFD_IOC_EVENT_HW_EXCEPTION)
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super().__init__(device, AMDAllocator(self), AMDRenderer(), AMDCompiler(self.arch), functools.partial(AMDProgram, self),
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AMDSignal, AMDComputeQueue, AMDCopyQueue)
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def _alloc_queue(self, queue_type, ring_size, ctx_save_restore_size=None, eop_buffer_size=None, ctl_stack_size=0) -> AMDQueueDesc:
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gart = self._gpu_alloc(0x1000, uncached=True)
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ring = self._gpu_alloc(ring_size, uncached=True)
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cwsr_ctx = self._gpu_alloc(round_up(ctx_save_restore_size + self.debug_memory_size, mmap.PAGESIZE)) if ctx_save_restore_size else None
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eop_buffer = self._gpu_alloc(eop_buffer_size) if eop_buffer_size else None
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queue = kfd.AMDKFD_IOC_CREATE_QUEUE(AMDDevice.kfd, ring_base_address=ring.va_addr, ring_size=ring.size, gpu_id=self.gpu_id,
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queue_type=queue_type, queue_percentage=kfd.KFD_MAX_QUEUE_PERCENTAGE, queue_priority=kfd.KFD_MAX_QUEUE_PRIORITY,
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eop_buffer_address=eop_buffer.va_addr if eop_buffer else 0, eop_buffer_size=eop_buffer.size if eop_buffer else 0, ctl_stack_size=ctl_stack_size,
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ctx_save_restore_address=cwsr_ctx.va_addr if cwsr_ctx else 0, ctx_save_restore_size=ctx_save_restore_size if cwsr_ctx else 0,
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write_pointer_address=gart.va_addr, read_pointer_address=gart.va_addr + 8)
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if not hasattr(self, 'doorbells'):
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self.doorbells_base = queue.doorbell_offset & (~0x1fff) # doorbell is two pages
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self.doorbells = libc.mmap(0, 0x2000, mmap.PROT_READ|mmap.PROT_WRITE, mmap.MAP_SHARED, AMDDevice.kfd, self.doorbells_base)
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return AMDQueueDesc(ring=to_mv(cast(int, ring.va_addr), ring_size).cast("I"),
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read_ptr=to_mv(queue.read_pointer_address, 8).cast("Q"), write_ptr=to_mv(queue.write_pointer_address, 8).cast("Q"),
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doorbell=to_mv(self.doorbells + queue.doorbell_offset - self.doorbells_base, 8).cast("Q"))
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def invalidate_caches(self):
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AMDComputeQueue().memory_barrier().signal(self.timeline_signal, self.timeline_value).submit(self)
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self.timeline_value += 1
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self.synchronize()
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def on_device_hang(self):
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report = []
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ev = (kfd.struct_kfd_event_data)(event_id=self.mem_fault_event.event_id)
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kfd.AMDKFD_IOC_WAIT_EVENTS(AMDDevice.kfd, events_ptr=ctypes.addressof(ev), num_events=1, wait_for_all=1)
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if ev.memory_exception_data.gpu_id:
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pfstatus = ' '.join(f'{k[0]}={getattr(ev.memory_exception_data.failure, k[0])}' for k in ev.memory_exception_data.failure._fields_)
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report += [f"MMU fault: 0x{ev.memory_exception_data.va:X} | {pfstatus}"]
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ev = (kfd.struct_kfd_event_data)(event_id=self.hw_fault_event.event_id)
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kfd.AMDKFD_IOC_WAIT_EVENTS(AMDDevice.kfd, events_ptr=ctypes.addressof(ev), num_events=1, wait_for_all=1)
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if ev.hw_exception_data.gpu_id:
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report += [f"HW fault: {' '.join(f'{k[0]}={getattr(ev.hw_exception_data, k[0])}' for k in ev.hw_exception_data._fields_)}"]
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raise RuntimeError("\n".join(report))
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