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/* SPDX-License-Identifier: GPL-2.0 or MIT */
/* Copyright 2019 Linaro, Ltd, Rob Herring <robh@kernel.org> */
/* Copyright 2023 Collabora ltd. */
#ifndef __PANTHOR_MMU_H__
#define __PANTHOR_MMU_H__
#include <linux/dma-resv.h>
struct drm_exec;
struct drm_sched_job;
struct panthor_gem_object;
struct panthor_heap_pool;
struct panthor_vm;
struct panthor_vma;
struct panthor_mmu;
int panthor_mmu_init(struct panthor_device *ptdev);
void panthor_mmu_unplug(struct panthor_device *ptdev);
void panthor_mmu_pre_reset(struct panthor_device *ptdev);
void panthor_mmu_post_reset(struct panthor_device *ptdev);
void panthor_mmu_suspend(struct panthor_device *ptdev);
void panthor_mmu_resume(struct panthor_device *ptdev);
int panthor_vm_map_bo_range(struct panthor_vm *vm, struct panthor_gem_object *bo,
u64 offset, u64 size, u64 va, u32 flags);
int panthor_vm_unmap_range(struct panthor_vm *vm, u64 va, u64 size);
struct panthor_gem_object *
panthor_vm_get_bo_for_va(struct panthor_vm *vm, u64 va, u64 *bo_offset);
int panthor_vm_active(struct panthor_vm *vm);
void panthor_vm_idle(struct panthor_vm *vm);
int panthor_vm_as(struct panthor_vm *vm);
struct panthor_heap_pool *
panthor_vm_get_heap_pool(struct panthor_vm *vm, bool create);
struct panthor_vm *panthor_vm_get(struct panthor_vm *vm);
void panthor_vm_put(struct panthor_vm *vm);
struct panthor_vm *panthor_vm_create(struct panthor_device *ptdev, bool for_mcu,
u64 kernel_va_start, u64 kernel_va_size,
u64 kernel_auto_va_start,
u64 kernel_auto_va_size);
int panthor_vm_prepare_mapped_bos_resvs(struct drm_exec *exec,
struct panthor_vm *vm,
u32 slot_count);
int panthor_vm_add_bos_resvs_deps_to_job(struct panthor_vm *vm,
struct drm_sched_job *job);
void panthor_vm_add_job_fence_to_bos_resvs(struct panthor_vm *vm,
struct drm_sched_job *job);
struct dma_resv *panthor_vm_resv(struct panthor_vm *vm);
struct drm_gem_object *panthor_vm_root_gem(struct panthor_vm *vm);
void panthor_vm_pool_destroy(struct panthor_file *pfile);
int panthor_vm_pool_create(struct panthor_file *pfile);
int panthor_vm_pool_create_vm(struct panthor_device *ptdev,
struct panthor_vm_pool *pool,
struct drm_panthor_vm_create *args);
int panthor_vm_pool_destroy_vm(struct panthor_vm_pool *pool, u32 handle);
struct panthor_vm *panthor_vm_pool_get_vm(struct panthor_vm_pool *pool, u32 handle);
bool panthor_vm_has_unhandled_faults(struct panthor_vm *vm);
bool panthor_vm_is_unusable(struct panthor_vm *vm);
/*
* PANTHOR_VM_KERNEL_AUTO_VA: Use this magic address when you want the GEM
* logic to auto-allocate the virtual address in the reserved kernel VA range.
*/
#define PANTHOR_VM_KERNEL_AUTO_VA ~0ull
int panthor_vm_alloc_va(struct panthor_vm *vm, u64 va, u64 size,
struct drm_mm_node *va_node);
void panthor_vm_free_va(struct panthor_vm *vm, struct drm_mm_node *va_node);
int panthor_vm_bind_exec_sync_op(struct drm_file *file,
struct panthor_vm *vm,
struct drm_panthor_vm_bind_op *op);
struct drm_sched_job *
panthor_vm_bind_job_create(struct drm_file *file,
struct panthor_vm *vm,
const struct drm_panthor_vm_bind_op *op);
void panthor_vm_bind_job_put(struct drm_sched_job *job);
int panthor_vm_bind_job_prepare_resvs(struct drm_exec *exec,
struct drm_sched_job *job);
void panthor_vm_bind_job_update_resvs(struct drm_exec *exec, struct drm_sched_job *job);
void panthor_vm_update_resvs(struct panthor_vm *vm, struct drm_exec *exec,
struct dma_fence *fence,
enum dma_resv_usage private_usage,
enum dma_resv_usage extobj_usage);
int panthor_mmu_pt_cache_init(void);
void panthor_mmu_pt_cache_fini(void);
#ifdef CONFIG_DEBUG_FS
void panthor_mmu_debugfs_init(struct drm_minor *minor);
#endif
#endif
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