static struct fd_device * fd_device_new_impl(int fd)
{
struct fd_device *dev;
drmVersionPtr version;
/* figure out if we are kgsl or msm drm driver: */
version = drmGetVersion(fd);
if (!version) {
ERROR_MSG("cannot get version: %s", strerror(errno));
return NULL;
}
if (!strcmp(version->name, "kgsl")) {
DEBUG_MSG("kgsl DRM device");
dev = kgsl_device_new(fd);
} else if (!strcmp(version->name, "msm")) {
DEBUG_MSG("msm DRM device");
dev = msm_device_new(fd);
} else {
ERROR_MSG("unknown device: %s", version->name);
dev = NULL;
}
if (!dev)
return NULL;
atomic_set(&dev->refcnt, 1);
dev->fd = fd;
dev->handle_table = drmHashCreate();
dev->name_table = drmHashCreate();
init_cache_buckets(dev);
return dev;
}
struct etna_device * etna_device_new(int fd)
{
struct etna_device *dev = calloc(sizeof(*dev), 1);
if (!dev)
return NULL;
atomic_set(&dev->refcnt, 1);
dev->fd = fd;
dev->handle_table = drmHashCreate();
dev->name_table = drmHashCreate();
init_cache_buckets(dev);
return dev;
}
/**
* Initializes the GEM buffer manager, which uses the kernel to allocate, map,
* and manage map buffer objections.
*
* \param fd File descriptor of the opened DRM device.
*/
struct iris_bufmgr *
iris_bufmgr_init(struct gen_device_info *devinfo, int fd)
{
uint64_t gtt_size = iris_gtt_size(fd);
if (gtt_size <= IRIS_MEMZONE_OTHER_START)
return NULL;
struct iris_bufmgr *bufmgr = calloc(1, sizeof(*bufmgr));
if (bufmgr == NULL)
return NULL;
/* Handles to buffer objects belong to the device fd and are not
* reference counted by the kernel. If the same fd is used by
* multiple parties (threads sharing the same screen bufmgr, or
* even worse the same device fd passed to multiple libraries)
* ownership of those handles is shared by those independent parties.
*
* Don't do this! Ensure that each library/bufmgr has its own device
* fd so that its namespace does not clash with another.
*/
bufmgr->fd = fd;
if (mtx_init(&bufmgr->lock, mtx_plain) != 0) {
free(bufmgr);
return NULL;
}
bufmgr->has_llc = devinfo->has_llc;
STATIC_ASSERT(IRIS_MEMZONE_SHADER_START == 0ull);
const uint64_t _4GB = 1ull << 32;
/* The STATE_BASE_ADDRESS size field can only hold 1 page shy of 4GB */
const uint64_t _4GB_minus_1 = _4GB - PAGE_SIZE;
util_vma_heap_init(&bufmgr->vma_allocator[IRIS_MEMZONE_SHADER],
PAGE_SIZE, _4GB_minus_1 - PAGE_SIZE);
util_vma_heap_init(&bufmgr->vma_allocator[IRIS_MEMZONE_SURFACE],
IRIS_MEMZONE_SURFACE_START,
_4GB_minus_1 - IRIS_MAX_BINDERS * IRIS_BINDER_SIZE);
util_vma_heap_init(&bufmgr->vma_allocator[IRIS_MEMZONE_DYNAMIC],
IRIS_MEMZONE_DYNAMIC_START + IRIS_BORDER_COLOR_POOL_SIZE,
_4GB_minus_1 - IRIS_BORDER_COLOR_POOL_SIZE);
/* Leave the last 4GB out of the high vma range, so that no state
* base address + size can overflow 48 bits.
*/
util_vma_heap_init(&bufmgr->vma_allocator[IRIS_MEMZONE_OTHER],
IRIS_MEMZONE_OTHER_START,
(gtt_size - _4GB) - IRIS_MEMZONE_OTHER_START);
// XXX: driconf
bufmgr->bo_reuse = env_var_as_boolean("bo_reuse", true);
init_cache_buckets(bufmgr);
bufmgr->name_table =
_mesa_hash_table_create(NULL, key_hash_uint, key_uint_equal);
bufmgr->handle_table =
_mesa_hash_table_create(NULL, key_hash_uint, key_uint_equal);
return bufmgr;
}
