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#include "util/u_memory.h"
#include "nouveau_drm_api.h"
#include "nouveau_winsys_pipe.h"
#include "nouveau_drmif.h"
#include "nouveau_channel.h"
#include "nouveau_bo.h"
static struct pipe_screen *
nouveau_drm_create_screen(int fd, int pciid)
{
struct pipe_winsys *ws;
struct nouveau_winsys *nvws;
struct nouveau_device *dev = NULL;
struct pipe_screen *(*init)(struct pipe_winsys *,
struct nouveau_winsys *);
int ret;
ret = nouveau_device_open_existing(&dev, 0, fd, 0);
if (ret)
return NULL;
switch (dev->chipset & 0xf0) {
case 0x00:
init = nv04_screen_create;
break;
case 0x10:
init = nv10_screen_create;
break;
case 0x20:
init = nv20_screen_create;
break;
case 0x30:
init = nv30_screen_create;
break;
case 0x40:
case 0x60:
init = nv40_screen_create;
break;
case 0x80:
case 0x90:
case 0xa0:
init = nv50_screen_create;
break;
default:
debug_printf("%s: unknown chipset nv%02x\n", __func__,
dev->chipset);
return NULL;
}
ws = nouveau_pipe_winsys_new(dev);
if (!ws) {
nouveau_device_close(&dev);
return NULL;
}
nvws = nouveau_winsys_new(ws);
if (!nvws) {
ws->destroy(ws);
return NULL;
}
nouveau_pipe_winsys(ws)->pscreen = init(ws, nvws);
if (!nouveau_pipe_winsys(ws)->pscreen) {
ws->destroy(ws);
return NULL;
}
return nouveau_pipe_winsys(ws)->pscreen;
}
static struct pipe_context *
nouveau_drm_create_context(struct pipe_screen *pscreen)
{
struct nouveau_pipe_winsys *nvpws = nouveau_screen(pscreen);
struct pipe_context *(*init)(struct pipe_screen *, unsigned);
unsigned chipset = nvpws->channel->device->chipset;
int i;
switch (chipset & 0xf0) {
case 0x00:
init = nv04_create;
break;
case 0x10:
init = nv10_create;
break;
case 0x20:
init = nv20_create;
break;
case 0x30:
init = nv30_create;
break;
case 0x40:
case 0x60:
init = nv40_create;
break;
case 0x80:
case 0x90:
case 0xa0:
init = nv50_create;
break;
default:
debug_printf("%s: unknown chipset nv%02x\n", __func__, chipset);
return NULL;
}
/* Find a free slot for a pipe context, allocate a new one if needed */
for (i = 0; i < nvpws->nr_pctx; i++) {
if (nvpws->pctx[i] == NULL)
break;
}
if (i == nvpws->nr_pctx) {
nvpws->nr_pctx++;
nvpws->pctx = realloc(nvpws->pctx,
sizeof(*nvpws->pctx) * nvpws->nr_pctx);
}
nvpws->pctx[i] = init(pscreen, i);
return nvpws->pctx[i];
}
static boolean
nouveau_drm_pb_from_pt(struct pipe_texture *pt, struct pipe_buffer **ppb,
unsigned *stride)
{
return false;
}
static struct pipe_buffer *
nouveau_drm_pb_from_handle(struct pipe_screen *pscreen, const char *name,
unsigned handle)
{
struct nouveau_pipe_winsys *nvpws = nouveau_screen(pscreen);
struct nouveau_device *dev = nvpws->channel->device;
struct nouveau_pipe_buffer *nvpb;
int ret;
nvpb = CALLOC_STRUCT(nouveau_pipe_buffer);
if (!nvpb)
return NULL;
ret = nouveau_bo_handle_ref(dev, handle, &nvpb->bo);
if (ret) {
debug_printf("%s: ref name 0x%08x failed with %d\n",
__func__, handle, ret);
FREE(nvpb);
return NULL;
}
pipe_reference_init(&nvpb->base.reference, 1);
nvpb->base.screen = pscreen;
nvpb->base.alignment = 0;
nvpb->base.usage = PIPE_BUFFER_USAGE_GPU_READ_WRITE |
PIPE_BUFFER_USAGE_CPU_READ_WRITE;
nvpb->base.size = nvpb->bo->size;
return &nvpb->base;
}
static boolean
nouveau_drm_handle_from_pb(struct pipe_screen *pscreen, struct pipe_buffer *pb,
unsigned *handle)
{
struct nouveau_pipe_buffer *nvpb = nouveau_pipe_buffer(pb);
if (!nvpb)
return FALSE;
*handle = nvpb->bo->handle;
return TRUE;
}
static boolean
nouveau_drm_name_from_pb(struct pipe_screen *pscreen, struct pipe_buffer *pb,
unsigned *handle)
{
struct nouveau_pipe_buffer *nvpb = nouveau_pipe_buffer(pb);
if (!nvpb)
return FALSE;
return nouveau_bo_handle_get(nvpb->bo, handle) == 0;
}
struct drm_api drm_api_hooks = {
.create_screen = nouveau_drm_create_screen,
.create_context = nouveau_drm_create_context,
.buffer_from_texture = nouveau_drm_pb_from_pt,
.buffer_from_handle = nouveau_drm_pb_from_handle,
.handle_from_buffer = nouveau_drm_handle_from_pb,
.global_handle_from_buffer = nouveau_drm_name_from_pb,
};
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