| 0,0 → 1,235 |
|---|
| /* |
| * Copyright 2011 Jerome Glisse <glisse@freedesktop.org> |
| * |
| * 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 |
| * on 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 above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHOR(S) AND/OR THEIR 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. |
| * |
| * Authors: |
| * Jérôme Glisse |
| */ |
| #ifndef RADEON_CTX_H |
| #define RADEON_CTX_H |
| |
| #define _FILE_OFFSET_BITS 64 |
| #include <sys/mman.h> |
| |
| #include <errno.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <stdint.h> |
| #include <string.h> |
| #include "xf86drm.h" |
| #include "radeon_drm.h" |
| |
| #ifndef RADEON_CHUNK_ID_FLAGS |
| #define RADEON_CHUNK_ID_FLAGS 0x03 |
| /* The first dword of RADEON_CHUNK_ID_FLAGS is a uint32 of these flags: */ |
| #define RADEON_CS_KEEP_TILING_FLAGS 0x01 |
| #endif |
| |
| |
| #ifndef RADEON_VA_MAP |
| |
| #define RADEON_VA_MAP 1 |
| #define RADEON_VA_UNMAP 2 |
| #define RADEON_VA_RESULT_OK 0 |
| #define RADEON_VA_RESULT_ERROR 1 |
| #define RADEON_VA_RESULT_VA_EXIST 2 |
| #define RADEON_VM_PAGE_VALID (1 << 0) |
| #define RADEON_VM_PAGE_READABLE (1 << 1) |
| #define RADEON_VM_PAGE_WRITEABLE (1 << 2) |
| #define RADEON_VM_PAGE_SYSTEM (1 << 3) |
| #define RADEON_VM_PAGE_SNOOPED (1 << 4) |
| struct drm_radeon_gem_va { |
| uint32_t handle; |
| uint32_t operation; |
| uint32_t vm_id; |
| uint32_t flags; |
| uint64_t offset; |
| }; |
| #define DRM_RADEON_GEM_VA 0x2b |
| #endif |
| |
| |
| struct ctx { |
| int fd; |
| }; |
| |
| struct bo { |
| uint32_t handle; |
| uint32_t alignment; |
| uint64_t size; |
| uint64_t va; |
| void *ptr; |
| }; |
| |
| static void ctx_init(struct ctx *ctx) |
| { |
| ctx->fd = drmOpen("radeon", NULL); |
| if (ctx->fd < 0) { |
| fprintf(stderr, "failed to open radeon drm device file\n"); |
| exit(-1); |
| } |
| } |
| |
| static void bo_wait(struct ctx *ctx, struct bo *bo) |
| { |
| struct drm_radeon_gem_wait_idle args; |
| void *ptr; |
| int r; |
| |
| /* Zero out args to make valgrind happy */ |
| memset(&args, 0, sizeof(args)); |
| args.handle = bo->handle; |
| do { |
| r = drmCommandWrite(ctx->fd, DRM_RADEON_GEM_WAIT_IDLE, &args, sizeof(args)); |
| } while (r == -EBUSY); |
| } |
| |
| |
| static void ctx_cs(struct ctx *ctx, uint32_t *cs, uint32_t cs_flags[2], unsigned ndw, |
| struct bo **bo, uint32_t *bo_relocs, unsigned nbo) |
| { |
| struct drm_radeon_cs args; |
| struct drm_radeon_cs_chunk chunks[3]; |
| uint64_t chunk_array[3]; |
| unsigned i; |
| int r; |
| |
| /* update handle */ |
| for (i = 0; i < nbo; i++) { |
| bo_relocs[i*4+0] = bo[i]->handle; |
| } |
| |
| args.num_chunks = 2; |
| if (cs_flags[0] || cs_flags[1]) { |
| /* enable RADEON_CHUNK_ID_FLAGS */ |
| args.num_chunks = 3; |
| } |
| args.chunks = (uint64_t)(uintptr_t)chunk_array; |
| chunks[0].chunk_id = RADEON_CHUNK_ID_IB; |
| chunks[0].length_dw = ndw; |
| chunks[0].chunk_data = (uintptr_t)cs; |
| chunks[1].chunk_id = RADEON_CHUNK_ID_RELOCS; |
| chunks[1].length_dw = nbo * 4; |
| chunks[1].chunk_data = (uintptr_t)bo_relocs; |
| chunks[2].chunk_id = RADEON_CHUNK_ID_FLAGS; |
| chunks[2].length_dw = 2; |
| chunks[2].chunk_data = (uintptr_t)cs_flags; |
| chunk_array[0] = (uintptr_t)&chunks[0]; |
| chunk_array[1] = (uintptr_t)&chunks[1]; |
| chunk_array[2] = (uintptr_t)&chunks[2]; |
| |
| fprintf(stderr, "emiting cs %ddw with %d bo\n", ndw, nbo); |
| r = drmCommandWriteRead(ctx->fd, DRM_RADEON_CS, &args, sizeof(args)); |
| if (r) { |
| fprintf(stderr, "cs submission failed with %d\n", r); |
| return; |
| } |
| } |
| |
| static void bo_map(struct ctx *ctx, struct bo *bo) |
| { |
| struct drm_radeon_gem_mmap args; |
| void *ptr; |
| int r; |
| |
| /* Zero out args to make valgrind happy */ |
| memset(&args, 0, sizeof(args)); |
| args.handle = bo->handle; |
| args.offset = 0; |
| args.size = (uint64_t)bo->size; |
| r = drmCommandWriteRead(ctx->fd, DRM_RADEON_GEM_MMAP, &args, sizeof(args)); |
| if (r) { |
| fprintf(stderr, "error mapping %p 0x%08X (error = %d)\n", bo, bo->handle, r); |
| exit(-1); |
| } |
| ptr = mmap(0, args.size, PROT_READ|PROT_WRITE, MAP_SHARED, ctx->fd, args.addr_ptr); |
| if (ptr == MAP_FAILED) { |
| fprintf(stderr, "%s failed to map bo\n", __func__); |
| exit(-1); |
| } |
| bo->ptr = ptr; |
| } |
| |
| static void bo_va(struct ctx *ctx, struct bo *bo) |
| { |
| struct drm_radeon_gem_va args; |
| int r; |
| |
| args.handle = bo->handle; |
| args.vm_id = 0; |
| args.operation = RADEON_VA_MAP; |
| args.flags = RADEON_VM_PAGE_READABLE | RADEON_VM_PAGE_WRITEABLE | RADEON_VM_PAGE_SNOOPED; |
| args.offset = bo->va; |
| r = drmCommandWriteRead(ctx->fd, DRM_RADEON_GEM_VA, &args, sizeof(args)); |
| if (r && args.operation == RADEON_VA_RESULT_ERROR) { |
| fprintf(stderr, "radeon: Failed to allocate virtual address for buffer:\n"); |
| fprintf(stderr, "radeon: size : %d bytes\n", bo->size); |
| fprintf(stderr, "radeon: alignment : %d bytes\n", bo->alignment); |
| fprintf(stderr, "radeon: va : 0x%016llx\n", (unsigned long long)bo->va); |
| exit(-1); |
| } |
| } |
| |
| static struct bo *bo_new(struct ctx *ctx, unsigned ndw, uint32_t *data, uint64_t va, uint32_t alignment) |
| { |
| struct drm_radeon_gem_create args; |
| struct bo *bo; |
| int r; |
| |
| bo = calloc(1, sizeof(*bo)); |
| if (bo == NULL) { |
| fprintf(stderr, "failed to malloc bo struct\n"); |
| exit(-1); |
| } |
| bo->size = ndw * 4ULL; |
| bo->va = va; |
| bo->alignment = alignment; |
| |
| args.size = bo->size; |
| args.alignment = bo->alignment; |
| args.initial_domain = RADEON_GEM_DOMAIN_GTT; |
| args.flags = 0; |
| args.handle = 0; |
| |
| r = drmCommandWriteRead(ctx->fd, DRM_RADEON_GEM_CREATE, &args, sizeof(args)); |
| bo->handle = args.handle; |
| if (r) { |
| fprintf(stderr, "Failed to allocate :\n"); |
| fprintf(stderr, " size : %d bytes\n", bo->size); |
| fprintf(stderr, " alignment : %d bytes\n", bo->alignment); |
| free(bo); |
| exit(-1); |
| } |
| |
| if (data) { |
| bo_map(ctx, bo); |
| memcpy(bo->ptr, data, bo->size); |
| } |
| |
| if (va) { |
| bo_va(ctx, bo); |
| } |
| |
| return bo; |
| } |
| |
| |
| #endif |