| /* |
| * Copyright © 2015 Intel Corporation |
| * |
| * 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, sublicense, |
| * 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 NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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. |
| */ |
| |
| #include <sys/ioctl.h> |
| #include <sys/mman.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| |
| #include "anv_private.h" |
| |
| static int |
| anv_ioctl(int fd, unsigned long request, void *arg) |
| { |
| int ret; |
| |
| do { |
| ret = ioctl(fd, request, arg); |
| } while (ret == -1 && (errno == EINTR || errno == EAGAIN)); |
| |
| return ret; |
| } |
| |
| /** |
| * Wrapper around DRM_IOCTL_I915_GEM_CREATE. |
| * |
| * Return gem handle, or 0 on failure. Gem handles are never 0. |
| */ |
| uint32_t |
| anv_gem_create(struct anv_device *device, size_t size) |
| { |
| struct drm_i915_gem_create gem_create = { |
| .size = size, |
| }; |
| |
| int ret = anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_CREATE, &gem_create); |
| if (ret != 0) { |
| /* FIXME: What do we do if this fails? */ |
| return 0; |
| } |
| |
| return gem_create.handle; |
| } |
| |
| void |
| anv_gem_close(struct anv_device *device, uint32_t gem_handle) |
| { |
| struct drm_gem_close close = { |
| .handle = gem_handle, |
| }; |
| |
| anv_ioctl(device->fd, DRM_IOCTL_GEM_CLOSE, &close); |
| } |
| |
| /** |
| * Wrapper around DRM_IOCTL_I915_GEM_MMAP. |
| */ |
| void* |
| anv_gem_mmap(struct anv_device *device, uint32_t gem_handle, |
| uint64_t offset, uint64_t size, uint32_t flags) |
| { |
| struct drm_i915_gem_mmap gem_mmap = { |
| .handle = gem_handle, |
| .offset = offset, |
| .size = size, |
| .flags = flags, |
| }; |
| |
| int ret = anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_MMAP, &gem_mmap); |
| if (ret != 0) |
| return MAP_FAILED; |
| |
| VG(VALGRIND_MALLOCLIKE_BLOCK(gem_mmap.addr_ptr, gem_mmap.size, 0, 1)); |
| return (void *)(uintptr_t) gem_mmap.addr_ptr; |
| } |
| |
| /* This is just a wrapper around munmap, but it also notifies valgrind that |
| * this map is no longer valid. Pair this with anv_gem_mmap(). |
| */ |
| void |
| anv_gem_munmap(void *p, uint64_t size) |
| { |
| VG(VALGRIND_FREELIKE_BLOCK(p, 0)); |
| munmap(p, size); |
| } |
| |
| uint32_t |
| anv_gem_userptr(struct anv_device *device, void *mem, size_t size) |
| { |
| struct drm_i915_gem_userptr userptr = { |
| .user_ptr = (__u64)((unsigned long) mem), |
| .user_size = size, |
| .flags = 0, |
| }; |
| |
| int ret = anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_USERPTR, &userptr); |
| if (ret == -1) |
| return 0; |
| |
| return userptr.handle; |
| } |
| |
| int |
| anv_gem_set_caching(struct anv_device *device, |
| uint32_t gem_handle, uint32_t caching) |
| { |
| struct drm_i915_gem_caching gem_caching = { |
| .handle = gem_handle, |
| .caching = caching, |
| }; |
| |
| return anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_SET_CACHING, &gem_caching); |
| } |
| |
| int |
| anv_gem_set_domain(struct anv_device *device, uint32_t gem_handle, |
| uint32_t read_domains, uint32_t write_domain) |
| { |
| struct drm_i915_gem_set_domain gem_set_domain = { |
| .handle = gem_handle, |
| .read_domains = read_domains, |
| .write_domain = write_domain, |
| }; |
| |
| return anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_SET_DOMAIN, &gem_set_domain); |
| } |
| |
| /** |
| * Returns 0, 1, or negative to indicate error |
| */ |
| int |
| anv_gem_busy(struct anv_device *device, uint32_t gem_handle) |
| { |
| struct drm_i915_gem_busy busy = { |
| .handle = gem_handle, |
| }; |
| |
| int ret = anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_BUSY, &busy); |
| if (ret < 0) |
| return ret; |
| |
| return busy.busy != 0; |
| } |
| |
| /** |
| * On error, \a timeout_ns holds the remaining time. |
| */ |
| int |
| anv_gem_wait(struct anv_device *device, uint32_t gem_handle, int64_t *timeout_ns) |
| { |
| struct drm_i915_gem_wait wait = { |
| .bo_handle = gem_handle, |
| .timeout_ns = *timeout_ns, |
| .flags = 0, |
| }; |
| |
| int ret = anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_WAIT, &wait); |
| *timeout_ns = wait.timeout_ns; |
| |
| return ret; |
| } |
| |
| int |
| anv_gem_execbuffer(struct anv_device *device, |
| struct drm_i915_gem_execbuffer2 *execbuf) |
| { |
| return anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, execbuf); |
| } |
| |
| int |
| anv_gem_set_tiling(struct anv_device *device, |
| uint32_t gem_handle, uint32_t stride, uint32_t tiling) |
| { |
| int ret; |
| |
| /* set_tiling overwrites the input on the error path, so we have to open |
| * code anv_ioctl. |
| */ |
| do { |
| struct drm_i915_gem_set_tiling set_tiling = { |
| .handle = gem_handle, |
| .tiling_mode = tiling, |
| .stride = stride, |
| }; |
| |
| ret = ioctl(device->fd, DRM_IOCTL_I915_GEM_SET_TILING, &set_tiling); |
| } while (ret == -1 && (errno == EINTR || errno == EAGAIN)); |
| |
| return ret; |
| } |
| |
| int |
| anv_gem_get_param(int fd, uint32_t param) |
| { |
| int tmp; |
| |
| drm_i915_getparam_t gp = { |
| .param = param, |
| .value = &tmp, |
| }; |
| |
| int ret = anv_ioctl(fd, DRM_IOCTL_I915_GETPARAM, &gp); |
| if (ret == 0) |
| return tmp; |
| |
| return 0; |
| } |
| |
| bool |
| anv_gem_get_bit6_swizzle(int fd, uint32_t tiling) |
| { |
| struct drm_gem_close close; |
| int ret; |
| |
| struct drm_i915_gem_create gem_create = { |
| .size = 4096, |
| }; |
| |
| if (anv_ioctl(fd, DRM_IOCTL_I915_GEM_CREATE, &gem_create)) { |
| assert(!"Failed to create GEM BO"); |
| return false; |
| } |
| |
| bool swizzled = false; |
| |
| /* set_tiling overwrites the input on the error path, so we have to open |
| * code anv_ioctl. |
| */ |
| do { |
| struct drm_i915_gem_set_tiling set_tiling = { |
| .handle = gem_create.handle, |
| .tiling_mode = tiling, |
| .stride = tiling == I915_TILING_X ? 512 : 128, |
| }; |
| |
| ret = ioctl(fd, DRM_IOCTL_I915_GEM_SET_TILING, &set_tiling); |
| } while (ret == -1 && (errno == EINTR || errno == EAGAIN)); |
| |
| if (ret != 0) { |
| assert(!"Failed to set BO tiling"); |
| goto close_and_return; |
| } |
| |
| struct drm_i915_gem_get_tiling get_tiling = { |
| .handle = gem_create.handle, |
| }; |
| |
| if (anv_ioctl(fd, DRM_IOCTL_I915_GEM_GET_TILING, &get_tiling)) { |
| assert(!"Failed to get BO tiling"); |
| goto close_and_return; |
| } |
| |
| swizzled = get_tiling.swizzle_mode != I915_BIT_6_SWIZZLE_NONE; |
| |
| close_and_return: |
| |
| memset(&close, 0, sizeof(close)); |
| close.handle = gem_create.handle; |
| anv_ioctl(fd, DRM_IOCTL_GEM_CLOSE, &close); |
| |
| return swizzled; |
| } |
| |
| int |
| anv_gem_create_context(struct anv_device *device) |
| { |
| struct drm_i915_gem_context_create create = { 0 }; |
| |
| int ret = anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_CONTEXT_CREATE, &create); |
| if (ret == -1) |
| return -1; |
| |
| return create.ctx_id; |
| } |
| |
| int |
| anv_gem_destroy_context(struct anv_device *device, int context) |
| { |
| struct drm_i915_gem_context_destroy destroy = { |
| .ctx_id = context, |
| }; |
| |
| return anv_ioctl(device->fd, DRM_IOCTL_I915_GEM_CONTEXT_DESTROY, &destroy); |
| } |
| |
| int |
| anv_gem_get_context_param(int fd, int context, uint32_t param, uint64_t *value) |
| { |
| struct drm_i915_gem_context_param gp = { |
| .ctx_id = context, |
| .param = param, |
| }; |
| |
| int ret = anv_ioctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_GETPARAM, &gp); |
| if (ret == -1) |
| return -1; |
| |
| *value = gp.value; |
| return 0; |
| } |
| |
| int |
| anv_gem_get_aperture(int fd, uint64_t *size) |
| { |
| struct drm_i915_gem_get_aperture aperture = { 0 }; |
| |
| int ret = anv_ioctl(fd, DRM_IOCTL_I915_GEM_GET_APERTURE, &aperture); |
| if (ret == -1) |
| return -1; |
| |
| *size = aperture.aper_available_size; |
| |
| return 0; |
| } |
| |
| bool |
| anv_gem_supports_48b_addresses(int fd) |
| { |
| struct drm_i915_gem_exec_object2 obj = { |
| .flags = EXEC_OBJECT_SUPPORTS_48B_ADDRESS, |
| }; |
| |
| struct drm_i915_gem_execbuffer2 execbuf = { |
| .buffers_ptr = (uintptr_t)&obj, |
| .buffer_count = 1, |
| .rsvd1 = 0xffffffu, |
| }; |
| |
| int ret = anv_ioctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf); |
| |
| return ret == -1 && errno == ENOENT; |
| } |
| |
| int |
| anv_gem_gpu_get_reset_stats(struct anv_device *device, |
| uint32_t *active, uint32_t *pending) |
| { |
| struct drm_i915_reset_stats stats = { |
| .ctx_id = device->context_id, |
| }; |
| |
| int ret = anv_ioctl(device->fd, DRM_IOCTL_I915_GET_RESET_STATS, &stats); |
| if (ret == 0) { |
| *active = stats.batch_active; |
| *pending = stats.batch_pending; |
| } |
| |
| return ret; |
| } |
| |
| int |
| anv_gem_handle_to_fd(struct anv_device *device, uint32_t gem_handle) |
| { |
| struct drm_prime_handle args = { |
| .handle = gem_handle, |
| .flags = DRM_CLOEXEC, |
| }; |
| |
| int ret = anv_ioctl(device->fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &args); |
| if (ret == -1) |
| return -1; |
| |
| return args.fd; |
| } |
| |
| uint32_t |
| anv_gem_fd_to_handle(struct anv_device *device, int fd) |
| { |
| struct drm_prime_handle args = { |
| .fd = fd, |
| }; |
| |
| int ret = anv_ioctl(device->fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &args); |
| if (ret == -1) |
| return 0; |
| |
| return args.handle; |
| } |