diff options
Diffstat (limited to 'src/gallium/winsys/drm/intel/gem/intel_be_device.c')
| -rw-r--r-- | src/gallium/winsys/drm/intel/gem/intel_be_device.c | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/src/gallium/winsys/drm/intel/gem/intel_be_device.c b/src/gallium/winsys/drm/intel/gem/intel_be_device.c new file mode 100644 index 0000000000..5406636bcb --- /dev/null +++ b/src/gallium/winsys/drm/intel/gem/intel_be_device.c @@ -0,0 +1,265 @@ + +#include "intel_be_device.h" + +#include "pipe/p_winsys.h" +#include "pipe/p_defines.h" +#include "pipe/p_state.h" +#include "pipe/p_inlines.h" +#include "util/u_memory.h" + +#include "intel_be_fence.h" + +#include "i915simple/i915_screen.h" + + +/** + * Turn a pipe winsys into an intel/pipe winsys: + */ +static INLINE struct intel_be_device * +intel_be_device(struct pipe_winsys *winsys) +{ + return (struct intel_be_device *)winsys; +} + +/* + * Buffer + */ + +static void * +intel_be_buffer_map(struct pipe_winsys *winsys, + struct pipe_buffer *buf, + unsigned flags) +{ + drm_intel_bo *bo = intel_bo(buf); + int write = 0; + int ret; + + if (flags & PIPE_BUFFER_USAGE_CPU_WRITE) + write = 1; + + ret = drm_intel_bo_map(bo, write); + + if (ret) + return NULL; + + return bo->virtual; +} + +static void +intel_be_buffer_unmap(struct pipe_winsys *winsys, + struct pipe_buffer *buf) +{ + drm_intel_bo_unmap(intel_bo(buf)); +} + +static void +intel_be_buffer_destroy(struct pipe_winsys *winsys, + struct pipe_buffer *buf) +{ + drm_intel_bo_unreference(intel_bo(buf)); + free(buf); +} + +static struct pipe_buffer * +intel_be_buffer_create(struct pipe_winsys *winsys, + unsigned alignment, + unsigned usage, + unsigned size) +{ + struct intel_be_buffer *buffer = CALLOC_STRUCT(intel_be_buffer); + struct intel_be_device *dev = intel_be_device(winsys); + drm_intel_bufmgr *pool; + char *name; + + if (!buffer) + return NULL; + + buffer->base.refcount = 1; + buffer->base.alignment = alignment; + buffer->base.usage = usage; + buffer->base.size = size; + + if (usage & (PIPE_BUFFER_USAGE_VERTEX | PIPE_BUFFER_USAGE_CONSTANT)) { + /* Local buffer */ + name = "gallium3d_local"; + pool = dev->pools.gem; + } else if (usage & PIPE_BUFFER_USAGE_CUSTOM) { + /* For vertex buffers */ + name = "gallium3d_internal_vertex"; + pool = dev->pools.gem; + } else { + /* Regular buffers */ + name = "gallium3d_regular"; + pool = dev->pools.gem; + } + + buffer->bo = drm_intel_bo_alloc(pool, name, size, alignment); + + if (!buffer->bo) + goto err; + + return &buffer->base; + +err: + free(buffer); + return NULL; +} + +static struct pipe_buffer * +intel_be_user_buffer_create(struct pipe_winsys *winsys, void *ptr, unsigned bytes) +{ + struct intel_be_buffer *buffer = CALLOC_STRUCT(intel_be_buffer); + struct intel_be_device *dev = intel_be_device(winsys); + int ret; + + if (!buffer) + return NULL; + + buffer->base.refcount = 1; + buffer->base.alignment = 0; + buffer->base.usage = 0; + buffer->base.size = bytes; + + buffer->bo = drm_intel_bo_alloc(dev->pools.gem, + "gallium3d_user_buffer", + bytes, 0); + + if (!buffer->bo) + goto err; + + ret = drm_intel_bo_subdata(buffer->bo, + 0, bytes, ptr); + + if (ret) + goto err; + + return &buffer->base; + +err: + free(buffer); + return NULL; +} + +struct pipe_buffer * +intel_be_buffer_from_handle(struct pipe_winsys *winsys, + const char* name, unsigned handle) +{ + struct intel_be_device *dev = intel_be_device(winsys); + struct intel_be_buffer *buffer = CALLOC_STRUCT(intel_be_buffer); + + if (!buffer) + return NULL; + + buffer->bo = drm_intel_bo_gem_create_from_name(dev->pools.gem, name, handle); + + if (!buffer->bo) + goto err; + + buffer->base.refcount = 1; + buffer->base.alignment = buffer->bo->align; + buffer->base.usage = PIPE_BUFFER_USAGE_GPU_READ | + PIPE_BUFFER_USAGE_GPU_WRITE | + PIPE_BUFFER_USAGE_CPU_READ | + PIPE_BUFFER_USAGE_CPU_WRITE; + buffer->base.size = buffer->bo->size; + + return &buffer->base; + +err: + free(buffer); + return NULL; +} + +unsigned +intel_be_handle_from_buffer(struct pipe_winsys *winsys, + struct pipe_buffer *buf) +{ + drm_intel_bo *bo = intel_bo(buf); + return bo->handle; +} + +/* + * Fence + */ + +static void +intel_be_fence_refunref(struct pipe_winsys *sws, + struct pipe_fence_handle **ptr, + struct pipe_fence_handle *fence) +{ + struct intel_be_fence **p = (struct intel_be_fence **)ptr; + struct intel_be_fence *f = (struct intel_be_fence *)fence; + + assert(p); + + if (f) + intel_be_fence_reference(f); + + if (*p) + intel_be_fence_unreference(*p); + + *p = f; +} + +static int +intel_be_fence_signalled(struct pipe_winsys *sws, + struct pipe_fence_handle *fence, + unsigned flag) +{ + assert(0); + + return 0; +} + +static int +intel_be_fence_finish(struct pipe_winsys *sws, + struct pipe_fence_handle *fence, + unsigned flag) +{ + struct intel_be_fence *f = (struct intel_be_fence *)fence; + + /* fence already expired */ + if (!f->bo) + return 0; + + drm_intel_bo_wait_rendering(f->bo); + drm_intel_bo_unreference(f->bo); + f->bo = NULL; + + return 0; +} + +/* + * Misc functions + */ + +boolean +intel_be_init_device(struct intel_be_device *dev, int fd, unsigned id) +{ + dev->fd = fd; + dev->max_batch_size = 16 * 4096; + dev->max_vertex_size = 128 * 4096; + + dev->base.buffer_create = intel_be_buffer_create; + dev->base.user_buffer_create = intel_be_user_buffer_create; + dev->base.buffer_map = intel_be_buffer_map; + dev->base.buffer_unmap = intel_be_buffer_unmap; + dev->base.buffer_destroy = intel_be_buffer_destroy; + + /* Not used anymore */ + dev->base.surface_buffer_create = NULL; + + dev->base.fence_reference = intel_be_fence_refunref; + dev->base.fence_signalled = intel_be_fence_signalled; + dev->base.fence_finish = intel_be_fence_finish; + + dev->pools.gem = drm_intel_bufmgr_gem_init(dev->fd, dev->max_batch_size); + + return true; +} + +void +intel_be_destroy_device(struct intel_be_device *dev) +{ + drm_intel_bufmgr_destroy(dev->pools.gem); +} |