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#include <stdio.h>
#include "state_tracker/drm_api.h"
#include "i915_drm_winsys.h"
#include "util/u_memory.h"
#include "i915/i915_context.h"
#include "i915/i915_screen.h"
#include "trace/tr_drm.h"
/*
* Helper functions
*/
static void
i915_drm_get_device_id(unsigned int *device_id)
{
char path[512];
FILE *file;
void *shutup_gcc;
/*
* FIXME: Fix this up to use a drm ioctl or whatever.
*/
snprintf(path, sizeof(path), "/sys/class/drm/card0/device/device");
file = fopen(path, "r");
if (!file) {
return;
}
shutup_gcc = fgets(path, sizeof(path), file);
(void) shutup_gcc;
sscanf(path, "%x", device_id);
fclose(file);
}
static void
i915_drm_winsys_destroy(struct i915_winsys *iws)
{
struct i915_drm_winsys *idws = i915_drm_winsys(iws);
drm_intel_bufmgr_destroy(idws->pools.gem);
FREE(idws);
}
static struct pipe_screen *
i915_drm_create_screen(struct drm_api *api, int drmFD,
struct drm_create_screen_arg *arg)
{
struct i915_drm_winsys *idws;
unsigned int deviceID;
if (arg != NULL) {
switch(arg->mode) {
case DRM_CREATE_NORMAL:
break;
default:
return NULL;
}
}
idws = CALLOC_STRUCT(i915_drm_winsys);
if (!idws)
return NULL;
i915_drm_get_device_id(&deviceID);
i915_drm_winsys_init_batchbuffer_functions(idws);
i915_drm_winsys_init_buffer_functions(idws);
i915_drm_winsys_init_fence_functions(idws);
idws->fd = drmFD;
idws->id = deviceID;
idws->max_batch_size = 16 * 4096;
idws->base.destroy = i915_drm_winsys_destroy;
idws->pools.gem = drm_intel_bufmgr_gem_init(idws->fd, idws->max_batch_size);
drm_intel_bufmgr_gem_enable_reuse(idws->pools.gem);
idws->dump_cmd = debug_get_bool_option("INTEL_DUMP_CMD", FALSE);
return i915_create_screen(&idws->base, deviceID);
}
static struct drm_api i915_drm_api =
{
.name = "i915",
.driver_name = "i915",
.create_screen = i915_drm_create_screen,
.destroy = NULL;
};
struct drm_api *
drm_api_create()
{
return trace_drm_create(&i915_drm_api);
}
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