linux/drivers/gpu/drm/i915/intel_memory_region.h

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

#ifndef __INTEL_MEMORY_REGION_H__
#define __INTEL_MEMORY_REGION_H__

#include <linux/ioport.h>
#include <linux/mutex.h>
#include <linux/io-mapping.h>
#include <drm/drm_mm.h>
#include <uapi/drm/i915_drm.h>

struct drm_i915_private;
struct drm_i915_gem_object;
struct drm_printer;
struct intel_memory_region;
struct sg_table;
struct ttm_resource;

enum intel_memory_type { … };

enum intel_region_id { … };

#define I915_ALLOC_CONTIGUOUS …

#define for_each_memory_region(mr, i915, id) …

struct intel_memory_region_ops { … };

struct intel_memory_region { … };

struct intel_memory_region *
intel_memory_region_lookup(struct drm_i915_private *i915,
			   u16 class, u16 instance);

struct intel_memory_region *
intel_memory_region_create(struct drm_i915_private *i915,
			   resource_size_t start,
			   resource_size_t size,
			   resource_size_t min_page_size,
			   resource_size_t io_start,
			   resource_size_t io_size,
			   u16 type,
			   u16 instance,
			   const struct intel_memory_region_ops *ops);

void intel_memory_region_destroy(struct intel_memory_region *mem);

int intel_memory_regions_hw_probe(struct drm_i915_private *i915);
void intel_memory_regions_driver_release(struct drm_i915_private *i915);
struct intel_memory_region *
intel_memory_region_by_type(struct drm_i915_private *i915,
			    enum intel_memory_type mem_type);

__printf(2, 3) void
intel_memory_region_set_name(struct intel_memory_region *mem,
			     const char *fmt, ...);

int intel_memory_region_reserve(struct intel_memory_region *mem,
				resource_size_t offset,
				resource_size_t size);

void intel_memory_region_debug(struct intel_memory_region *mr,
			       struct drm_printer *printer);

void intel_memory_region_avail(struct intel_memory_region *mr,
			       u64 *avail, u64 *visible_avail);

struct intel_memory_region *
i915_gem_ttm_system_setup(struct drm_i915_private *i915,
			  u16 type, u16 instance);
struct intel_memory_region *
i915_gem_shmem_setup(struct drm_i915_private *i915,
		     u16 type, u16 instance);

#endif