From 01bb4a6c21c225e55a84ac606a3b213909023ba0 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 9 Apr 2024 11:59:14 +0200 Subject: Adding upstream version 2.4.120. Signed-off-by: Daniel Baumann --- radeon/radeon_cs_gem.c | 556 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 556 insertions(+) create mode 100644 radeon/radeon_cs_gem.c (limited to 'radeon/radeon_cs_gem.c') diff --git a/radeon/radeon_cs_gem.c b/radeon/radeon_cs_gem.c new file mode 100644 index 0000000..ef070c6 --- /dev/null +++ b/radeon/radeon_cs_gem.c @@ -0,0 +1,556 @@ +/* + * Copyright © 2008 Jérôme Glisse + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS + * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + */ +/* + * Authors: + * Aapo Tahkola + * Nicolai Haehnle + * Jérôme Glisse + */ +#include +#include +#include +#include +#include +#include +#include "radeon_cs.h" +#include "radeon_cs_int.h" +#include "radeon_bo_int.h" +#include "radeon_cs_gem.h" +#include "radeon_bo_gem.h" +#include "drm.h" +#include "libdrm_macros.h" +#include "xf86drm.h" +#include "xf86atomic.h" +#include "radeon_drm.h" + +/* Add LIBDRM_RADEON_BOF_FILES to libdrm_radeon_la_SOURCES when building with BOF_DUMP */ +#define CS_BOF_DUMP 0 +#if CS_BOF_DUMP +#include "bof.h" +#endif + +struct radeon_cs_manager_gem { + struct radeon_cs_manager base; + uint32_t device_id; + unsigned nbof; +}; + +#pragma pack(1) +struct cs_reloc_gem { + uint32_t handle; + uint32_t read_domain; + uint32_t write_domain; + uint32_t flags; +}; + +#pragma pack() +#define RELOC_SIZE (sizeof(struct cs_reloc_gem) / sizeof(uint32_t)) + +struct cs_gem { + struct radeon_cs_int base; + struct drm_radeon_cs cs; + struct drm_radeon_cs_chunk chunks[2]; + unsigned nrelocs; + uint32_t *relocs; + struct radeon_bo_int **relocs_bo; +}; + +static pthread_mutex_t id_mutex = PTHREAD_MUTEX_INITIALIZER; +static uint32_t cs_id_source = 0; + +/** + * result is undefined if called with ~0 + */ +static uint32_t get_first_zero(const uint32_t n) +{ + /* __builtin_ctz returns number of trailing zeros. */ + return 1 << __builtin_ctz(~n); +} + +/** + * Returns a free id for cs. + * If there is no free id we return zero + **/ +static uint32_t generate_id(void) +{ + uint32_t r = 0; + pthread_mutex_lock( &id_mutex ); + /* check for free ids */ + if (cs_id_source != ~r) { + /* find first zero bit */ + r = get_first_zero(cs_id_source); + + /* set id as reserved */ + cs_id_source |= r; + } + pthread_mutex_unlock( &id_mutex ); + return r; +} + +/** + * Free the id for later reuse + **/ +static void free_id(uint32_t id) +{ + pthread_mutex_lock( &id_mutex ); + + cs_id_source &= ~id; + + pthread_mutex_unlock( &id_mutex ); +} + +static struct radeon_cs_int *cs_gem_create(struct radeon_cs_manager *csm, + uint32_t ndw) +{ + struct cs_gem *csg; + + /* max cmd buffer size is 64Kb */ + if (ndw > (64 * 1024 / 4)) { + return NULL; + } + csg = (struct cs_gem*)calloc(1, sizeof(struct cs_gem)); + if (csg == NULL) { + return NULL; + } + csg->base.csm = csm; + csg->base.ndw = 64 * 1024 / 4; + csg->base.packets = (uint32_t*)calloc(1, 64 * 1024); + if (csg->base.packets == NULL) { + free(csg); + return NULL; + } + csg->base.relocs_total_size = 0; + csg->base.crelocs = 0; + csg->base.id = generate_id(); + csg->nrelocs = 4096 / (4 * 4) ; + csg->relocs_bo = (struct radeon_bo_int**)calloc(1, + csg->nrelocs*sizeof(void*)); + if (csg->relocs_bo == NULL) { + free(csg->base.packets); + free(csg); + return NULL; + } + csg->base.relocs = csg->relocs = (uint32_t*)calloc(1, 4096); + if (csg->relocs == NULL) { + free(csg->relocs_bo); + free(csg->base.packets); + free(csg); + return NULL; + } + csg->chunks[0].chunk_id = RADEON_CHUNK_ID_IB; + csg->chunks[0].length_dw = 0; + csg->chunks[0].chunk_data = (uint64_t)(uintptr_t)csg->base.packets; + csg->chunks[1].chunk_id = RADEON_CHUNK_ID_RELOCS; + csg->chunks[1].length_dw = 0; + csg->chunks[1].chunk_data = (uint64_t)(uintptr_t)csg->relocs; + return (struct radeon_cs_int*)csg; +} + +static int cs_gem_write_reloc(struct radeon_cs_int *cs, + struct radeon_bo *bo, + uint32_t read_domain, + uint32_t write_domain, + uint32_t flags) +{ + struct radeon_bo_int *boi = (struct radeon_bo_int *)bo; + struct cs_gem *csg = (struct cs_gem*)cs; + struct cs_reloc_gem *reloc; + uint32_t idx; + unsigned i; + + assert(boi->space_accounted); + + /* check domains */ + if ((read_domain && write_domain) || (!read_domain && !write_domain)) { + /* in one CS a bo can only be in read or write domain but not + * in read & write domain at the same time + */ + return -EINVAL; + } + if (read_domain == RADEON_GEM_DOMAIN_CPU) { + return -EINVAL; + } + if (write_domain == RADEON_GEM_DOMAIN_CPU) { + return -EINVAL; + } + /* use bit field hash function to determine + if this bo is for sure not in this cs.*/ + if ((atomic_read((atomic_t *)radeon_gem_get_reloc_in_cs(bo)) & cs->id)) { + /* check if bo is already referenced. + * Scanning from end to begin reduces cycles with mesa because + * it often relocates same shared dma bo again. */ + for(i = cs->crelocs; i != 0;) { + --i; + idx = i * RELOC_SIZE; + reloc = (struct cs_reloc_gem*)&csg->relocs[idx]; + if (reloc->handle == bo->handle) { + /* Check domains must be in read or write. As we check already + * checked that in argument one of the read or write domain was + * set we only need to check that if previous reloc as the read + * domain set then the read_domain should also be set for this + * new relocation. + */ + /* the DDX expects to read and write from same pixmap */ + if (write_domain && (reloc->read_domain & write_domain)) { + reloc->read_domain = 0; + reloc->write_domain = write_domain; + } else if (read_domain & reloc->write_domain) { + reloc->read_domain = 0; + } else { + if (write_domain != reloc->write_domain) + return -EINVAL; + if (read_domain != reloc->read_domain) + return -EINVAL; + } + + reloc->read_domain |= read_domain; + reloc->write_domain |= write_domain; + /* update flags */ + reloc->flags |= (flags & reloc->flags); + /* write relocation packet */ + radeon_cs_write_dword((struct radeon_cs *)cs, 0xc0001000); + radeon_cs_write_dword((struct radeon_cs *)cs, idx); + return 0; + } + } + } + /* new relocation */ + if (csg->base.crelocs >= csg->nrelocs) { + /* allocate more memory (TODO: should use a slab allocator maybe) */ + uint32_t *tmp, size; + size = ((csg->nrelocs + 1) * sizeof(struct radeon_bo*)); + tmp = (uint32_t*)realloc(csg->relocs_bo, size); + if (tmp == NULL) { + return -ENOMEM; + } + csg->relocs_bo = (struct radeon_bo_int **)tmp; + size = ((csg->nrelocs + 1) * RELOC_SIZE * 4); + tmp = (uint32_t*)realloc(csg->relocs, size); + if (tmp == NULL) { + return -ENOMEM; + } + cs->relocs = csg->relocs = tmp; + csg->nrelocs += 1; + csg->chunks[1].chunk_data = (uint64_t)(uintptr_t)csg->relocs; + } + csg->relocs_bo[csg->base.crelocs] = boi; + idx = (csg->base.crelocs++) * RELOC_SIZE; + reloc = (struct cs_reloc_gem*)&csg->relocs[idx]; + reloc->handle = bo->handle; + reloc->read_domain = read_domain; + reloc->write_domain = write_domain; + reloc->flags = flags; + csg->chunks[1].length_dw += RELOC_SIZE; + radeon_bo_ref(bo); + /* bo might be referenced from another context so have to use atomic operations */ + atomic_add((atomic_t *)radeon_gem_get_reloc_in_cs(bo), cs->id); + cs->relocs_total_size += boi->size; + radeon_cs_write_dword((struct radeon_cs *)cs, 0xc0001000); + radeon_cs_write_dword((struct radeon_cs *)cs, idx); + return 0; +} + +static int cs_gem_begin(struct radeon_cs_int *cs, + uint32_t ndw, + const char *file, + const char *func, + int line) +{ + + if (cs->section_ndw) { + fprintf(stderr, "CS already in a section(%s,%s,%d)\n", + cs->section_file, cs->section_func, cs->section_line); + fprintf(stderr, "CS can't start section(%s,%s,%d)\n", + file, func, line); + return -EPIPE; + } + cs->section_ndw = ndw; + cs->section_cdw = 0; + cs->section_file = file; + cs->section_func = func; + cs->section_line = line; + + if (cs->cdw + ndw > cs->ndw) { + uint32_t tmp, *ptr; + + /* round up the required size to a multiple of 1024 */ + tmp = (cs->cdw + ndw + 0x3FF) & (~0x3FF); + ptr = (uint32_t*)realloc(cs->packets, 4 * tmp); + if (ptr == NULL) { + return -ENOMEM; + } + cs->packets = ptr; + cs->ndw = tmp; + } + return 0; +} + +static int cs_gem_end(struct radeon_cs_int *cs, + const char *file, + const char *func, + int line) + +{ + if (!cs->section_ndw) { + fprintf(stderr, "CS no section to end at (%s,%s,%d)\n", + file, func, line); + return -EPIPE; + } + if (cs->section_ndw != cs->section_cdw) { + fprintf(stderr, "CS section size mismatch start at (%s,%s,%d) %d vs %d\n", + cs->section_file, cs->section_func, cs->section_line, cs->section_ndw, cs->section_cdw); + fprintf(stderr, "CS section end at (%s,%s,%d)\n", + file, func, line); + + /* We must reset the section even when there is error. */ + cs->section_ndw = 0; + return -EPIPE; + } + cs->section_ndw = 0; + return 0; +} + +#if CS_BOF_DUMP +static void cs_gem_dump_bof(struct radeon_cs_int *cs) +{ + struct cs_gem *csg = (struct cs_gem*)cs; + struct radeon_cs_manager_gem *csm; + bof_t *bcs, *blob, *array, *bo, *size, *handle, *device_id, *root; + char tmp[256]; + unsigned i; + + csm = (struct radeon_cs_manager_gem *)cs->csm; + root = device_id = bcs = blob = array = bo = size = handle = NULL; + root = bof_object(); + if (root == NULL) + goto out_err; + device_id = bof_int32(csm->device_id); + if (device_id == NULL) + return; + if (bof_object_set(root, "device_id", device_id)) + goto out_err; + bof_decref(device_id); + device_id = NULL; + /* dump relocs */ + blob = bof_blob(csg->nrelocs * 16, csg->relocs); + if (blob == NULL) + goto out_err; + if (bof_object_set(root, "reloc", blob)) + goto out_err; + bof_decref(blob); + blob = NULL; + /* dump cs */ + blob = bof_blob(cs->cdw * 4, cs->packets); + if (blob == NULL) + goto out_err; + if (bof_object_set(root, "pm4", blob)) + goto out_err; + bof_decref(blob); + blob = NULL; + /* dump bo */ + array = bof_array(); + if (array == NULL) + goto out_err; + for (i = 0; i < csg->base.crelocs; i++) { + bo = bof_object(); + if (bo == NULL) + goto out_err; + size = bof_int32(csg->relocs_bo[i]->size); + if (size == NULL) + goto out_err; + if (bof_object_set(bo, "size", size)) + goto out_err; + bof_decref(size); + size = NULL; + handle = bof_int32(csg->relocs_bo[i]->handle); + if (handle == NULL) + goto out_err; + if (bof_object_set(bo, "handle", handle)) + goto out_err; + bof_decref(handle); + handle = NULL; + radeon_bo_map((struct radeon_bo*)csg->relocs_bo[i], 0); + blob = bof_blob(csg->relocs_bo[i]->size, csg->relocs_bo[i]->ptr); + radeon_bo_unmap((struct radeon_bo*)csg->relocs_bo[i]); + if (blob == NULL) + goto out_err; + if (bof_object_set(bo, "data", blob)) + goto out_err; + bof_decref(blob); + blob = NULL; + if (bof_array_append(array, bo)) + goto out_err; + bof_decref(bo); + bo = NULL; + } + if (bof_object_set(root, "bo", array)) + goto out_err; + sprintf(tmp, "d-0x%04X-%08d.bof", csm->device_id, csm->nbof++); + bof_dump_file(root, tmp); +out_err: + bof_decref(blob); + bof_decref(array); + bof_decref(bo); + bof_decref(size); + bof_decref(handle); + bof_decref(device_id); + bof_decref(root); +} +#endif + +static int cs_gem_emit(struct radeon_cs_int *cs) +{ + struct cs_gem *csg = (struct cs_gem*)cs; + uint64_t chunk_array[2]; + unsigned i; + int r; + + while (cs->cdw & 7) + radeon_cs_write_dword((struct radeon_cs *)cs, 0x80000000); + +#if CS_BOF_DUMP + cs_gem_dump_bof(cs); +#endif + csg->chunks[0].length_dw = cs->cdw; + + chunk_array[0] = (uint64_t)(uintptr_t)&csg->chunks[0]; + chunk_array[1] = (uint64_t)(uintptr_t)&csg->chunks[1]; + + csg->cs.num_chunks = 2; + csg->cs.chunks = (uint64_t)(uintptr_t)chunk_array; + + r = drmCommandWriteRead(cs->csm->fd, DRM_RADEON_CS, + &csg->cs, sizeof(struct drm_radeon_cs)); + for (i = 0; i < csg->base.crelocs; i++) { + csg->relocs_bo[i]->space_accounted = 0; + /* bo might be referenced from another context so have to use atomic operations */ + atomic_dec((atomic_t *)radeon_gem_get_reloc_in_cs((struct radeon_bo*)csg->relocs_bo[i]), cs->id); + radeon_bo_unref((struct radeon_bo *)csg->relocs_bo[i]); + csg->relocs_bo[i] = NULL; + } + + cs->csm->read_used = 0; + cs->csm->vram_write_used = 0; + cs->csm->gart_write_used = 0; + return r; +} + +static int cs_gem_destroy(struct radeon_cs_int *cs) +{ + struct cs_gem *csg = (struct cs_gem*)cs; + + free_id(cs->id); + free(csg->relocs_bo); + free(cs->relocs); + free(cs->packets); + free(cs); + return 0; +} + +static int cs_gem_erase(struct radeon_cs_int *cs) +{ + struct cs_gem *csg = (struct cs_gem*)cs; + unsigned i; + + if (csg->relocs_bo) { + for (i = 0; i < csg->base.crelocs; i++) { + if (csg->relocs_bo[i]) { + /* bo might be referenced from another context so have to use atomic operations */ + atomic_dec((atomic_t *)radeon_gem_get_reloc_in_cs((struct radeon_bo*)csg->relocs_bo[i]), cs->id); + radeon_bo_unref((struct radeon_bo *)csg->relocs_bo[i]); + csg->relocs_bo[i] = NULL; + } + } + } + cs->relocs_total_size = 0; + cs->cdw = 0; + cs->section_ndw = 0; + cs->crelocs = 0; + csg->chunks[0].length_dw = 0; + csg->chunks[1].length_dw = 0; + return 0; +} + +static int cs_gem_need_flush(struct radeon_cs_int *cs) +{ + return 0; //(cs->relocs_total_size > (32*1024*1024)); +} + +static void cs_gem_print(struct radeon_cs_int *cs, FILE *file) +{ + struct radeon_cs_manager_gem *csm; + unsigned int i; + + csm = (struct radeon_cs_manager_gem *)cs->csm; + fprintf(file, "VENDORID:DEVICEID 0x%04X:0x%04X\n", 0x1002, csm->device_id); + for (i = 0; i < cs->cdw; i++) { + fprintf(file, "0x%08X\n", cs->packets[i]); + } +} + +static const struct radeon_cs_funcs radeon_cs_gem_funcs = { + .cs_create = cs_gem_create, + .cs_write_reloc = cs_gem_write_reloc, + .cs_begin = cs_gem_begin, + .cs_end = cs_gem_end, + .cs_emit = cs_gem_emit, + .cs_destroy = cs_gem_destroy, + .cs_erase = cs_gem_erase, + .cs_need_flush = cs_gem_need_flush, + .cs_print = cs_gem_print, +}; + +static int radeon_get_device_id(int fd, uint32_t *device_id) +{ + struct drm_radeon_info info = {}; + int r; + + *device_id = 0; + info.request = RADEON_INFO_DEVICE_ID; + info.value = (uintptr_t)device_id; + r = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, + sizeof(struct drm_radeon_info)); + return r; +} + +drm_public struct radeon_cs_manager *radeon_cs_manager_gem_ctor(int fd) +{ + struct radeon_cs_manager_gem *csm; + + csm = calloc(1, sizeof(struct radeon_cs_manager_gem)); + if (csm == NULL) { + return NULL; + } + csm->base.funcs = &radeon_cs_gem_funcs; + csm->base.fd = fd; + radeon_get_device_id(fd, &csm->device_id); + return &csm->base; +} + +drm_public void radeon_cs_manager_gem_dtor(struct radeon_cs_manager *csm) +{ + free(csm); +} -- cgit v1.2.3