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#include <stdio.h>
#include <sys/ioctl.h>
#include "drm-uapi/i915_drm.h"
#include "state_tracker/drm_driver.h"
#include "i915_drm_winsys.h"
#include "i915_drm_public.h"
#include "util/u_memory.h"
/*
* Helper functions
*/
static void
i915_drm_get_device_id(int fd, unsigned int *device_id)
{
int ret;
struct drm_i915_getparam gp;
gp.param = I915_PARAM_CHIPSET_ID;
gp.value = (int *)device_id;
ret = ioctl(fd, DRM_IOCTL_I915_GETPARAM, &gp, sizeof(gp));
assert(ret == 0);
}
static int
i915_drm_aperture_size(struct i915_winsys *iws)
{
struct i915_drm_winsys *idws = i915_drm_winsys(iws);
size_t aper_size, mappable_size;
drm_intel_get_aperture_sizes(idws->fd, &mappable_size, &aper_size);
return aper_size >> 20;
}
static void
i915_drm_winsys_destroy(struct i915_winsys *iws)
{
struct i915_drm_winsys *idws = i915_drm_winsys(iws);
drm_intel_bufmgr_destroy(idws->gem_manager);
FREE(idws);
}
struct i915_winsys *
i915_drm_winsys_create(int drmFD)
{
struct i915_drm_winsys *idws;
unsigned int deviceID;
idws = CALLOC_STRUCT(i915_drm_winsys);
if (!idws)
return NULL;
i915_drm_get_device_id(drmFD, &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->base.pci_id = deviceID;
idws->max_batch_size = 1 * 4096;
idws->base.aperture_size = i915_drm_aperture_size;
idws->base.destroy = i915_drm_winsys_destroy;
idws->gem_manager = drm_intel_bufmgr_gem_init(idws->fd, idws->max_batch_size);
drm_intel_bufmgr_gem_enable_reuse(idws->gem_manager);
drm_intel_bufmgr_gem_enable_fenced_relocs(idws->gem_manager);
idws->dump_cmd = debug_get_bool_option("I915_DUMP_CMD", FALSE);
idws->dump_raw_file = debug_get_option("I915_DUMP_RAW_FILE", NULL);
idws->send_cmd = !debug_get_bool_option("I915_NO_HW", FALSE);
return &idws->base;
}
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