drivers/gpu/drm/i915/intel_region_lmem.c


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// SPDX-License-Identifier: MIT
/*
 * Copyright © 2019 Intel Corporation
 */

#include "i915_drv.h"
#include "intel_memory_region.h"
#include "gem/i915_gem_lmem.h"
#include "gem/i915_gem_region.h"
#include "intel_region_lmem.h"

static void
region_lmem_release(struct intel_memory_region *mem)
{
	io_mapping_fini(&mem->iomap);
	intel_memory_region_release_buddy(mem);
}

static int
region_lmem_init(struct intel_memory_region *mem)
{
	int ret;

	if (!io_mapping_init_wc(&mem->iomap,
				mem->io_start,
				resource_size(&mem->region)))
		return -EIO;

	ret = intel_memory_region_init_buddy(mem);
	if (ret)
		io_mapping_fini(&mem->iomap);

	return ret;
}

const struct intel_memory_region_ops intel_region_lmem_ops = {
	.init = region_lmem_init,
	.release = region_lmem_release,
	.create_object = __i915_gem_lmem_object_create,
};