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#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);
}
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