928 lines
29 KiB
C
928 lines
29 KiB
C
/*
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* Copyright © 2014-2017 Broadcom
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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/**
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* @file v3d_simulator.c
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*
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* Implements V3D simulation on top of a non-V3D GEM fd.
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*
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* This file's goal is to emulate the V3D ioctls' behavior in the kernel on
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* top of the simpenrose software simulator. Generally, V3D driver BOs have a
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* GEM-side copy of their contents and a simulator-side memory area that the
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* GEM contents get copied into during simulation. Once simulation is done,
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* the simulator's data is copied back out to the GEM BOs, so that rendering
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* appears on the screen as if actual hardware rendering had been done.
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*
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* One of the limitations of this code is that we shouldn't really need a
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* GEM-side BO for non-window-system BOs. However, do we need unique BO
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* handles for each of our GEM bos so that this file can look up its state
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* from the handle passed in at submit ioctl time (also, a couple of places
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* outside of this file still call ioctls directly on the fd).
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*
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* Another limitation is that BO import doesn't work unless the underlying
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* window system's BO size matches what V3D is going to use, which of course
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* doesn't work out in practice. This means that for now, only DRI3 (V3D
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* makes the winsys BOs) is supported, not DRI2 (window system makes the winys
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* BOs).
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*/
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#ifdef USE_V3D_SIMULATOR
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#include <stdio.h>
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#include <sys/mman.h>
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#include "c11/threads.h"
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#include "util/hash_table.h"
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#include "util/ralloc.h"
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#include "util/set.h"
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#include "util/u_dynarray.h"
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#include "util/u_memory.h"
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#include "util/u_mm.h"
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#include "util/u_math.h"
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#include <xf86drm.h>
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#include "drm-uapi/amdgpu_drm.h"
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#include "drm-uapi/i915_drm.h"
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#include "drm-uapi/v3d_drm.h"
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#include "v3d_simulator.h"
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#include "v3d_simulator_wrapper.h"
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/** Global (across GEM fds) state for the simulator */
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static struct v3d_simulator_state {
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mtx_t mutex;
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mtx_t submit_lock;
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struct v3d_hw *v3d;
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int ver;
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/* Base virtual address of the heap. */
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void *mem;
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/* Base hardware address of the heap. */
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uint32_t mem_base;
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/* Size of the heap. */
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uint32_t mem_size;
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struct mem_block *heap;
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struct mem_block *overflow;
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/** Mapping from GEM fd to struct v3d_simulator_file * */
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struct hash_table *fd_map;
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/** Last performance monitor ID. */
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uint32_t last_perfid;
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struct util_dynarray bin_oom;
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int refcount;
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} sim_state = {
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.mutex = _MTX_INITIALIZER_NP,
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};
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enum gem_type {
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GEM_I915,
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GEM_AMDGPU,
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GEM_DUMB
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};
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/** Per-GEM-fd state for the simulator. */
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struct v3d_simulator_file {
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int fd;
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/** Mapping from GEM handle to struct v3d_simulator_bo * */
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struct hash_table *bo_map;
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/** Dynamic array with performance monitors */
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struct v3d_simulator_perfmon **perfmons;
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uint32_t perfmons_size;
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uint32_t active_perfid;
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struct mem_block *gmp;
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void *gmp_vaddr;
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/** For specific gpus, use their create ioctl. Otherwise use dumb bo. */
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enum gem_type gem_type;
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};
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/** Wrapper for drm_v3d_bo tracking the simulator-specific state. */
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struct v3d_simulator_bo {
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struct v3d_simulator_file *file;
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/** Area for this BO within sim_state->mem */
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struct mem_block *block;
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uint32_t size;
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uint64_t mmap_offset;
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void *sim_vaddr;
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void *gem_vaddr;
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int handle;
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};
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struct v3d_simulator_perfmon {
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uint32_t ncounters;
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uint8_t counters[DRM_V3D_MAX_PERF_COUNTERS];
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uint64_t values[DRM_V3D_MAX_PERF_COUNTERS];
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};
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static void *
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int_to_key(int key)
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{
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return (void *)(uintptr_t)key;
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}
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#define PERFMONS_ALLOC_SIZE 100
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static uint32_t
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perfmons_next_id(struct v3d_simulator_file *sim_file) {
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sim_state.last_perfid++;
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if (sim_state.last_perfid > sim_file->perfmons_size) {
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sim_file->perfmons_size += PERFMONS_ALLOC_SIZE;
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sim_file->perfmons = reralloc(sim_file,
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sim_file->perfmons,
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struct v3d_simulator_perfmon *,
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sim_file->perfmons_size);
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}
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return sim_state.last_perfid;
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}
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static struct v3d_simulator_file *
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v3d_get_simulator_file_for_fd(int fd)
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{
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struct hash_entry *entry = _mesa_hash_table_search(sim_state.fd_map,
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int_to_key(fd + 1));
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return entry ? entry->data : NULL;
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}
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/* A marker placed just after each BO, then checked after rendering to make
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* sure it's still there.
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*/
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#define BO_SENTINEL 0xfedcba98
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/* 128kb */
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#define GMP_ALIGN2 17
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/**
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* Sets the range of GPU virtual address space to have the given GMP
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* permissions (bit 0 = read, bit 1 = write, write-only forbidden).
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*/
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static void
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set_gmp_flags(struct v3d_simulator_file *file,
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uint32_t offset, uint32_t size, uint32_t flag)
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{
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assert((offset & ((1 << GMP_ALIGN2) - 1)) == 0);
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int gmp_offset = offset >> GMP_ALIGN2;
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int gmp_count = align(size, 1 << GMP_ALIGN2) >> GMP_ALIGN2;
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uint32_t *gmp = file->gmp_vaddr;
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assert(flag <= 0x3);
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for (int i = gmp_offset; i < gmp_offset + gmp_count; i++) {
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int32_t bitshift = (i % 16) * 2;
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gmp[i / 16] &= ~(0x3 << bitshift);
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gmp[i / 16] |= flag << bitshift;
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}
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}
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/**
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* Allocates space in simulator memory and returns a tracking struct for it
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* that also contains the drm_gem_cma_object struct.
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*/
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static struct v3d_simulator_bo *
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v3d_create_simulator_bo(int fd, unsigned size)
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{
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struct v3d_simulator_file *file = v3d_get_simulator_file_for_fd(fd);
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struct v3d_simulator_bo *sim_bo = rzalloc(file,
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struct v3d_simulator_bo);
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size = align(size, 4096);
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sim_bo->file = file;
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mtx_lock(&sim_state.mutex);
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sim_bo->block = u_mmAllocMem(sim_state.heap, size + 4, GMP_ALIGN2, 0);
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mtx_unlock(&sim_state.mutex);
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assert(sim_bo->block);
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set_gmp_flags(file, sim_bo->block->ofs, size, 0x3);
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sim_bo->size = size;
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/* Allocate space for the buffer in simulator memory. */
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sim_bo->sim_vaddr = sim_state.mem + sim_bo->block->ofs - sim_state.mem_base;
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memset(sim_bo->sim_vaddr, 0xd0, size);
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*(uint32_t *)(sim_bo->sim_vaddr + sim_bo->size) = BO_SENTINEL;
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return sim_bo;
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}
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static struct v3d_simulator_bo *
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v3d_create_simulator_bo_for_gem(int fd, int handle, unsigned size)
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{
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struct v3d_simulator_file *file = v3d_get_simulator_file_for_fd(fd);
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struct v3d_simulator_bo *sim_bo =
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v3d_create_simulator_bo(fd, size);
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sim_bo->handle = handle;
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/* Map the GEM buffer for copy in/out to the simulator. i915 blocks
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* dumb mmap on render nodes, so use their ioctl directly if we're on
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* one.
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*/
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int ret;
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switch (file->gem_type) {
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case GEM_I915:
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{
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struct drm_i915_gem_mmap_gtt map = {
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.handle = handle,
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};
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/* We could potentially use non-gtt (cached) for LLC systems,
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* but the copy-in/out won't be the limiting factor on
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* simulation anyway.
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*/
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ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_MMAP_GTT, &map);
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sim_bo->mmap_offset = map.offset;
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break;
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}
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case GEM_AMDGPU:
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{
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union drm_amdgpu_gem_mmap map = { 0 };
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map.in.handle = handle;
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ret = drmIoctl(fd, DRM_IOCTL_AMDGPU_GEM_MMAP, &map);
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sim_bo->mmap_offset = map.out.addr_ptr;
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break;
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}
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default:
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{
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struct drm_mode_map_dumb map = {
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.handle = handle,
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};
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ret = drmIoctl(fd, DRM_IOCTL_MODE_MAP_DUMB, &map);
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sim_bo->mmap_offset = map.offset;
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}
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}
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if (ret) {
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fprintf(stderr, "Failed to get MMAP offset: %d\n", ret);
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abort();
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}
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sim_bo->gem_vaddr = mmap(NULL, sim_bo->size,
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PROT_READ | PROT_WRITE, MAP_SHARED,
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fd, sim_bo->mmap_offset);
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if (sim_bo->gem_vaddr == MAP_FAILED) {
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fprintf(stderr, "mmap of bo %d (offset 0x%016llx, size %d) failed\n",
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handle, (long long)sim_bo->mmap_offset, sim_bo->size);
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abort();
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}
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/* A handle of 0 is used for v3d_gem.c internal allocations that
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* don't need to go in the lookup table.
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*/
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if (handle != 0) {
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mtx_lock(&sim_state.mutex);
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_mesa_hash_table_insert(file->bo_map, int_to_key(handle),
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sim_bo);
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mtx_unlock(&sim_state.mutex);
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}
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return sim_bo;
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}
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static int bin_fd;
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uint32_t
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v3d_simulator_get_spill(uint32_t spill_size)
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{
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struct v3d_simulator_bo *sim_bo =
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v3d_create_simulator_bo(bin_fd, spill_size);
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util_dynarray_append(&sim_state.bin_oom, struct v3d_simulator_bo *,
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sim_bo);
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return sim_bo->block->ofs;
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}
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static void
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v3d_free_simulator_bo(struct v3d_simulator_bo *sim_bo)
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{
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struct v3d_simulator_file *sim_file = sim_bo->file;
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set_gmp_flags(sim_file, sim_bo->block->ofs, sim_bo->size, 0x0);
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if (sim_bo->gem_vaddr)
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munmap(sim_bo->gem_vaddr, sim_bo->size);
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mtx_lock(&sim_state.mutex);
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u_mmFreeMem(sim_bo->block);
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if (sim_bo->handle) {
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_mesa_hash_table_remove_key(sim_file->bo_map,
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int_to_key(sim_bo->handle));
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}
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mtx_unlock(&sim_state.mutex);
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ralloc_free(sim_bo);
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}
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static struct v3d_simulator_bo *
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v3d_get_simulator_bo(struct v3d_simulator_file *file, int gem_handle)
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{
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if (gem_handle == 0)
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return NULL;
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mtx_lock(&sim_state.mutex);
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struct hash_entry *entry =
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_mesa_hash_table_search(file->bo_map, int_to_key(gem_handle));
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mtx_unlock(&sim_state.mutex);
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return entry ? entry->data : NULL;
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}
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static void
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v3d_simulator_copy_in_handle(struct v3d_simulator_file *file, int handle)
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{
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struct v3d_simulator_bo *sim_bo = v3d_get_simulator_bo(file, handle);
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if (!sim_bo)
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return;
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memcpy(sim_bo->sim_vaddr, sim_bo->gem_vaddr, sim_bo->size);
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}
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static void
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v3d_simulator_copy_out_handle(struct v3d_simulator_file *file, int handle)
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{
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struct v3d_simulator_bo *sim_bo = v3d_get_simulator_bo(file, handle);
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if (!sim_bo)
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return;
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memcpy(sim_bo->gem_vaddr, sim_bo->sim_vaddr, sim_bo->size);
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if (*(uint32_t *)(sim_bo->sim_vaddr +
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sim_bo->size) != BO_SENTINEL) {
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fprintf(stderr, "Buffer overflow in handle %d\n",
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handle);
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}
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}
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static int
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v3d_simulator_pin_bos(struct v3d_simulator_file *file,
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struct drm_v3d_submit_cl *submit)
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{
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uint32_t *bo_handles = (uint32_t *)(uintptr_t)submit->bo_handles;
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for (int i = 0; i < submit->bo_handle_count; i++)
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v3d_simulator_copy_in_handle(file, bo_handles[i]);
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return 0;
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}
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static int
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v3d_simulator_unpin_bos(struct v3d_simulator_file *file,
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struct drm_v3d_submit_cl *submit)
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{
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uint32_t *bo_handles = (uint32_t *)(uintptr_t)submit->bo_handles;
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for (int i = 0; i < submit->bo_handle_count; i++)
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v3d_simulator_copy_out_handle(file, bo_handles[i]);
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return 0;
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}
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static struct v3d_simulator_perfmon *
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v3d_get_simulator_perfmon(int fd, uint32_t perfid)
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{
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if (!perfid || perfid > sim_state.last_perfid)
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return NULL;
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struct v3d_simulator_file *file = v3d_get_simulator_file_for_fd(fd);
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mtx_lock(&sim_state.mutex);
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assert(perfid <= file->perfmons_size);
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struct v3d_simulator_perfmon *perfmon = file->perfmons[perfid - 1];
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mtx_unlock(&sim_state.mutex);
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return perfmon;
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}
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static void
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v3d_simulator_perfmon_switch(int fd, uint32_t perfid)
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{
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struct v3d_simulator_file *file = v3d_get_simulator_file_for_fd(fd);
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struct v3d_simulator_perfmon *perfmon;
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if (perfid == file->active_perfid)
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return;
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perfmon = v3d_get_simulator_perfmon(fd, file->active_perfid);
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if (perfmon)
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v3d41_simulator_perfmon_stop(sim_state.v3d,
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perfmon->ncounters,
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perfmon->values);
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perfmon = v3d_get_simulator_perfmon(fd, perfid);
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if (perfmon)
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v3d41_simulator_perfmon_start(sim_state.v3d,
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perfmon->ncounters,
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perfmon->counters);
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file->active_perfid = perfid;
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}
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static int
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v3d_simulator_signal_syncobjs(int fd, struct drm_v3d_multi_sync *ms)
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{
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struct drm_v3d_sem *out_syncs = (void *)(uintptr_t)ms->out_syncs;
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int n_syncobjs = ms->out_sync_count;
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uint32_t syncobjs[n_syncobjs];
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for (int i = 0; i < n_syncobjs; i++)
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syncobjs[i] = out_syncs[i].handle;
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return drmSyncobjSignal(fd, (uint32_t *) &syncobjs, n_syncobjs);
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}
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static int
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v3d_simulator_process_post_deps(int fd, struct drm_v3d_extension *ext)
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{
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int ret = 0;
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while (ext && ext->id != DRM_V3D_EXT_ID_MULTI_SYNC)
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ext = (void *)(uintptr_t) ext->next;
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if (ext) {
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struct drm_v3d_multi_sync *ms = (struct drm_v3d_multi_sync *) ext;
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ret = v3d_simulator_signal_syncobjs(fd, ms);
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}
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return ret;
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}
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static int
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v3d_simulator_submit_cl_ioctl(int fd, struct drm_v3d_submit_cl *submit)
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{
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struct v3d_simulator_file *file = v3d_get_simulator_file_for_fd(fd);
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int ret;
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ret = v3d_simulator_pin_bos(file, submit);
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if (ret)
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return ret;
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mtx_lock(&sim_state.submit_lock);
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bin_fd = fd;
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v3d_simulator_perfmon_switch(fd, submit->perfmon_id);
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|
|
if (sim_state.ver >= 41)
|
|
v3d41_simulator_submit_cl_ioctl(sim_state.v3d, submit, file->gmp->ofs);
|
|
else
|
|
v3d33_simulator_submit_cl_ioctl(sim_state.v3d, submit, file->gmp->ofs);
|
|
|
|
util_dynarray_foreach(&sim_state.bin_oom, struct v3d_simulator_bo *,
|
|
sim_bo) {
|
|
v3d_free_simulator_bo(*sim_bo);
|
|
}
|
|
util_dynarray_clear(&sim_state.bin_oom);
|
|
|
|
mtx_unlock(&sim_state.submit_lock);
|
|
|
|
ret = v3d_simulator_unpin_bos(file, submit);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (submit->flags & DRM_V3D_SUBMIT_EXTENSION) {
|
|
struct drm_v3d_extension *ext = (void *)(uintptr_t)submit->extensions;
|
|
ret = v3d_simulator_process_post_deps(fd, ext);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Do fixups after a BO has been opened from a handle.
|
|
*
|
|
* This could be done at DRM_IOCTL_GEM_OPEN/DRM_IOCTL_GEM_PRIME_FD_TO_HANDLE
|
|
* time, but we're still using drmPrimeFDToHandle() so we have this helper to
|
|
* be called afterward instead.
|
|
*/
|
|
void v3d_simulator_open_from_handle(int fd, int handle, uint32_t size)
|
|
{
|
|
v3d_create_simulator_bo_for_gem(fd, handle, size);
|
|
}
|
|
|
|
/**
|
|
* Simulated ioctl(fd, DRM_V3D_CREATE_BO) implementation.
|
|
*
|
|
* Making a V3D BO is just a matter of making a corresponding BO on the host.
|
|
*/
|
|
static int
|
|
v3d_simulator_create_bo_ioctl(int fd, struct drm_v3d_create_bo *args)
|
|
{
|
|
struct v3d_simulator_file *file = v3d_get_simulator_file_for_fd(fd);
|
|
|
|
/* i915 bans dumb create on render nodes, so we have to use their
|
|
* native ioctl in case we're on a render node.
|
|
*/
|
|
int ret;
|
|
switch (file->gem_type) {
|
|
case GEM_I915:
|
|
{
|
|
struct drm_i915_gem_create create = {
|
|
.size = args->size,
|
|
};
|
|
|
|
ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create);
|
|
|
|
args->handle = create.handle;
|
|
break;
|
|
}
|
|
case GEM_AMDGPU:
|
|
{
|
|
union drm_amdgpu_gem_create create = { 0 };
|
|
create.in.bo_size = args->size;
|
|
|
|
ret = drmIoctl(fd, DRM_IOCTL_AMDGPU_GEM_CREATE, &create);
|
|
|
|
args->handle = create.out.handle;
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
struct drm_mode_create_dumb create = {
|
|
.width = 128,
|
|
.bpp = 8,
|
|
.height = (args->size + 127) / 128,
|
|
};
|
|
|
|
ret = drmIoctl(fd, DRM_IOCTL_MODE_CREATE_DUMB, &create);
|
|
assert(ret != 0 || create.size >= args->size);
|
|
|
|
args->handle = create.handle;
|
|
}
|
|
}
|
|
if (ret == 0) {
|
|
struct v3d_simulator_bo *sim_bo =
|
|
v3d_create_simulator_bo_for_gem(fd, args->handle,
|
|
args->size);
|
|
|
|
args->offset = sim_bo->block->ofs;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Simulated ioctl(fd, DRM_V3D_MMAP_BO) implementation.
|
|
*
|
|
* We've already grabbed the mmap offset when we created the sim bo, so just
|
|
* return it.
|
|
*/
|
|
static int
|
|
v3d_simulator_mmap_bo_ioctl(int fd, struct drm_v3d_mmap_bo *args)
|
|
{
|
|
struct v3d_simulator_file *file = v3d_get_simulator_file_for_fd(fd);
|
|
struct v3d_simulator_bo *sim_bo = v3d_get_simulator_bo(file,
|
|
args->handle);
|
|
|
|
args->offset = sim_bo->mmap_offset;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
v3d_simulator_get_bo_offset_ioctl(int fd, struct drm_v3d_get_bo_offset *args)
|
|
{
|
|
struct v3d_simulator_file *file = v3d_get_simulator_file_for_fd(fd);
|
|
struct v3d_simulator_bo *sim_bo = v3d_get_simulator_bo(file,
|
|
args->handle);
|
|
|
|
args->offset = sim_bo->block->ofs;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
v3d_simulator_gem_close_ioctl(int fd, struct drm_gem_close *args)
|
|
{
|
|
/* Free the simulator's internal tracking. */
|
|
struct v3d_simulator_file *file = v3d_get_simulator_file_for_fd(fd);
|
|
struct v3d_simulator_bo *sim_bo = v3d_get_simulator_bo(file,
|
|
args->handle);
|
|
|
|
v3d_free_simulator_bo(sim_bo);
|
|
|
|
/* Pass the call on down. */
|
|
return drmIoctl(fd, DRM_IOCTL_GEM_CLOSE, args);
|
|
}
|
|
|
|
static int
|
|
v3d_simulator_get_param_ioctl(int fd, struct drm_v3d_get_param *args)
|
|
{
|
|
if (sim_state.ver >= 41)
|
|
return v3d41_simulator_get_param_ioctl(sim_state.v3d, args);
|
|
else
|
|
return v3d33_simulator_get_param_ioctl(sim_state.v3d, args);
|
|
}
|
|
|
|
static int
|
|
v3d_simulator_submit_tfu_ioctl(int fd, struct drm_v3d_submit_tfu *args)
|
|
{
|
|
struct v3d_simulator_file *file = v3d_get_simulator_file_for_fd(fd);
|
|
int ret;
|
|
|
|
v3d_simulator_copy_in_handle(file, args->bo_handles[0]);
|
|
v3d_simulator_copy_in_handle(file, args->bo_handles[1]);
|
|
v3d_simulator_copy_in_handle(file, args->bo_handles[2]);
|
|
v3d_simulator_copy_in_handle(file, args->bo_handles[3]);
|
|
|
|
if (sim_state.ver >= 41)
|
|
ret = v3d41_simulator_submit_tfu_ioctl(sim_state.v3d, args);
|
|
else
|
|
ret = v3d33_simulator_submit_tfu_ioctl(sim_state.v3d, args);
|
|
|
|
v3d_simulator_copy_out_handle(file, args->bo_handles[0]);
|
|
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (args->flags & DRM_V3D_SUBMIT_EXTENSION) {
|
|
struct drm_v3d_extension *ext = (void *)(uintptr_t)args->extensions;
|
|
ret = v3d_simulator_process_post_deps(fd, ext);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
v3d_simulator_submit_csd_ioctl(int fd, struct drm_v3d_submit_csd *args)
|
|
{
|
|
struct v3d_simulator_file *file = v3d_get_simulator_file_for_fd(fd);
|
|
uint32_t *bo_handles = (uint32_t *)(uintptr_t)args->bo_handles;
|
|
int ret;
|
|
|
|
for (int i = 0; i < args->bo_handle_count; i++)
|
|
v3d_simulator_copy_in_handle(file, bo_handles[i]);
|
|
|
|
v3d_simulator_perfmon_switch(fd, args->perfmon_id);
|
|
|
|
if (sim_state.ver >= 41)
|
|
ret = v3d41_simulator_submit_csd_ioctl(sim_state.v3d, args,
|
|
file->gmp->ofs);
|
|
else
|
|
ret = -1;
|
|
|
|
for (int i = 0; i < args->bo_handle_count; i++)
|
|
v3d_simulator_copy_out_handle(file, bo_handles[i]);
|
|
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (args->flags & DRM_V3D_SUBMIT_EXTENSION) {
|
|
struct drm_v3d_extension *ext = (void *)(uintptr_t)args->extensions;
|
|
ret = v3d_simulator_process_post_deps(fd, ext);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
v3d_simulator_perfmon_create_ioctl(int fd, struct drm_v3d_perfmon_create *args)
|
|
{
|
|
struct v3d_simulator_file *file = v3d_get_simulator_file_for_fd(fd);
|
|
|
|
if (args->ncounters == 0 ||
|
|
args->ncounters > DRM_V3D_MAX_PERF_COUNTERS)
|
|
return -EINVAL;
|
|
|
|
struct v3d_simulator_perfmon *perfmon = rzalloc(file,
|
|
struct v3d_simulator_perfmon);
|
|
|
|
perfmon->ncounters = args->ncounters;
|
|
for (int i = 0; i < args->ncounters; i++) {
|
|
if (args->counters[i] >= V3D_PERFCNT_NUM) {
|
|
ralloc_free(perfmon);
|
|
return -EINVAL;
|
|
} else {
|
|
perfmon->counters[i] = args->counters[i];
|
|
}
|
|
}
|
|
|
|
mtx_lock(&sim_state.mutex);
|
|
args->id = perfmons_next_id(file);
|
|
file->perfmons[args->id - 1] = perfmon;
|
|
mtx_unlock(&sim_state.mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
v3d_simulator_perfmon_destroy_ioctl(int fd, struct drm_v3d_perfmon_destroy *args)
|
|
{
|
|
struct v3d_simulator_file *file = v3d_get_simulator_file_for_fd(fd);
|
|
struct v3d_simulator_perfmon *perfmon =
|
|
v3d_get_simulator_perfmon(fd, args->id);
|
|
|
|
if (!perfmon)
|
|
return -EINVAL;
|
|
|
|
mtx_lock(&sim_state.mutex);
|
|
file->perfmons[args->id - 1] = NULL;
|
|
mtx_unlock(&sim_state.mutex);
|
|
|
|
ralloc_free(perfmon);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
v3d_simulator_perfmon_get_values_ioctl(int fd, struct drm_v3d_perfmon_get_values *args)
|
|
{
|
|
struct v3d_simulator_file *file = v3d_get_simulator_file_for_fd(fd);
|
|
|
|
mtx_lock(&sim_state.submit_lock);
|
|
|
|
/* Stop the perfmon if it is still active */
|
|
if (args->id == file->active_perfid)
|
|
v3d_simulator_perfmon_switch(fd, 0);
|
|
|
|
mtx_unlock(&sim_state.submit_lock);
|
|
|
|
struct v3d_simulator_perfmon *perfmon =
|
|
v3d_get_simulator_perfmon(fd, args->id);
|
|
|
|
if (!perfmon)
|
|
return -EINVAL;
|
|
|
|
memcpy((void *)args->values_ptr, perfmon->values, perfmon->ncounters * sizeof(uint64_t));
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
v3d_simulator_ioctl(int fd, unsigned long request, void *args)
|
|
{
|
|
switch (request) {
|
|
case DRM_IOCTL_V3D_SUBMIT_CL:
|
|
return v3d_simulator_submit_cl_ioctl(fd, args);
|
|
case DRM_IOCTL_V3D_CREATE_BO:
|
|
return v3d_simulator_create_bo_ioctl(fd, args);
|
|
case DRM_IOCTL_V3D_MMAP_BO:
|
|
return v3d_simulator_mmap_bo_ioctl(fd, args);
|
|
case DRM_IOCTL_V3D_GET_BO_OFFSET:
|
|
return v3d_simulator_get_bo_offset_ioctl(fd, args);
|
|
|
|
case DRM_IOCTL_V3D_WAIT_BO:
|
|
/* We do all of the v3d rendering synchronously, so we just
|
|
* return immediately on the wait ioctls. This ignores any
|
|
* native rendering to the host BO, so it does mean we race on
|
|
* front buffer rendering.
|
|
*/
|
|
return 0;
|
|
|
|
case DRM_IOCTL_V3D_GET_PARAM:
|
|
return v3d_simulator_get_param_ioctl(fd, args);
|
|
|
|
case DRM_IOCTL_GEM_CLOSE:
|
|
return v3d_simulator_gem_close_ioctl(fd, args);
|
|
|
|
case DRM_IOCTL_V3D_SUBMIT_TFU:
|
|
return v3d_simulator_submit_tfu_ioctl(fd, args);
|
|
|
|
case DRM_IOCTL_V3D_SUBMIT_CSD:
|
|
return v3d_simulator_submit_csd_ioctl(fd, args);
|
|
|
|
case DRM_IOCTL_V3D_PERFMON_CREATE:
|
|
return v3d_simulator_perfmon_create_ioctl(fd, args);
|
|
|
|
case DRM_IOCTL_V3D_PERFMON_DESTROY:
|
|
return v3d_simulator_perfmon_destroy_ioctl(fd, args);
|
|
|
|
case DRM_IOCTL_V3D_PERFMON_GET_VALUES:
|
|
return v3d_simulator_perfmon_get_values_ioctl(fd, args);
|
|
|
|
case DRM_IOCTL_GEM_OPEN:
|
|
case DRM_IOCTL_GEM_FLINK:
|
|
return drmIoctl(fd, request, args);
|
|
default:
|
|
fprintf(stderr, "Unknown ioctl 0x%08x\n", (int)request);
|
|
abort();
|
|
}
|
|
}
|
|
|
|
uint32_t
|
|
v3d_simulator_get_mem_size(void)
|
|
{
|
|
return sim_state.mem_size;
|
|
}
|
|
|
|
static void
|
|
v3d_simulator_init_global()
|
|
{
|
|
mtx_lock(&sim_state.mutex);
|
|
if (sim_state.refcount++) {
|
|
mtx_unlock(&sim_state.mutex);
|
|
return;
|
|
}
|
|
|
|
sim_state.v3d = v3d_hw_auto_new(NULL);
|
|
v3d_hw_alloc_mem(sim_state.v3d, 1024 * 1024 * 1024);
|
|
sim_state.mem_base =
|
|
v3d_hw_get_mem(sim_state.v3d, &sim_state.mem_size,
|
|
&sim_state.mem);
|
|
|
|
/* Allocate from anywhere from 4096 up. We don't allocate at 0,
|
|
* because for OQs and some other addresses in the HW, 0 means
|
|
* disabled.
|
|
*/
|
|
sim_state.heap = u_mmInit(4096, sim_state.mem_size - 4096);
|
|
|
|
/* Make a block of 0xd0 at address 0 to make sure we don't screw up
|
|
* and land there.
|
|
*/
|
|
struct mem_block *b = u_mmAllocMem(sim_state.heap, 4096, GMP_ALIGN2, 0);
|
|
memset(sim_state.mem + b->ofs - sim_state.mem_base, 0xd0, 4096);
|
|
|
|
sim_state.ver = v3d_hw_get_version(sim_state.v3d);
|
|
|
|
mtx_unlock(&sim_state.mutex);
|
|
|
|
sim_state.fd_map =
|
|
_mesa_hash_table_create(NULL,
|
|
_mesa_hash_pointer,
|
|
_mesa_key_pointer_equal);
|
|
|
|
util_dynarray_init(&sim_state.bin_oom, NULL);
|
|
|
|
if (sim_state.ver >= 41)
|
|
v3d41_simulator_init_regs(sim_state.v3d);
|
|
else
|
|
v3d33_simulator_init_regs(sim_state.v3d);
|
|
}
|
|
|
|
struct v3d_simulator_file *
|
|
v3d_simulator_init(int fd)
|
|
{
|
|
v3d_simulator_init_global();
|
|
|
|
struct v3d_simulator_file *sim_file = rzalloc(NULL, struct v3d_simulator_file);
|
|
|
|
drmVersionPtr version = drmGetVersion(fd);
|
|
if (version && strncmp(version->name, "i915", version->name_len) == 0)
|
|
sim_file->gem_type = GEM_I915;
|
|
else if (version && strncmp(version->name, "amdgpu", version->name_len) == 0)
|
|
sim_file->gem_type = GEM_AMDGPU;
|
|
else
|
|
sim_file->gem_type = GEM_DUMB;
|
|
drmFreeVersion(version);
|
|
|
|
sim_file->bo_map =
|
|
_mesa_hash_table_create(sim_file,
|
|
_mesa_hash_pointer,
|
|
_mesa_key_pointer_equal);
|
|
|
|
mtx_lock(&sim_state.mutex);
|
|
_mesa_hash_table_insert(sim_state.fd_map, int_to_key(fd + 1),
|
|
sim_file);
|
|
mtx_unlock(&sim_state.mutex);
|
|
|
|
sim_file->gmp = u_mmAllocMem(sim_state.heap, 8096, GMP_ALIGN2, 0);
|
|
sim_file->gmp_vaddr = (sim_state.mem + sim_file->gmp->ofs -
|
|
sim_state.mem_base);
|
|
memset(sim_file->gmp_vaddr, 0, 8096);
|
|
|
|
return sim_file;
|
|
}
|
|
|
|
void
|
|
v3d_simulator_destroy(struct v3d_simulator_file *sim_file)
|
|
{
|
|
mtx_lock(&sim_state.mutex);
|
|
if (!--sim_state.refcount) {
|
|
_mesa_hash_table_destroy(sim_state.fd_map, NULL);
|
|
util_dynarray_fini(&sim_state.bin_oom);
|
|
u_mmDestroy(sim_state.heap);
|
|
/* No memsetting the struct, because it contains the mutex. */
|
|
sim_state.mem = NULL;
|
|
}
|
|
mtx_unlock(&sim_state.mutex);
|
|
ralloc_free(sim_file);
|
|
}
|
|
|
|
#endif /* USE_V3D_SIMULATOR */
|