#include "amdgpu_ucode.h"
#include "amdgpu_gds.h"
#include "amd_powerplay.h"
+#include "amdgpu_acp.h"
#include "gpu_scheduler.h"
extern int amdgpu_smc_load_fw;
extern int amdgpu_aspm;
extern int amdgpu_runtime_pm;
-extern int amdgpu_hard_reset;
extern unsigned amdgpu_ip_block_mask;
extern int amdgpu_bapm;
extern int amdgpu_deep_color;
extern int amdgpu_vm_block_size;
extern int amdgpu_vm_fault_stop;
extern int amdgpu_vm_debug;
-extern int amdgpu_enable_scheduler;
extern int amdgpu_sched_jobs;
extern int amdgpu_sched_hw_submission;
-extern int amdgpu_enable_semaphores;
extern int amdgpu_powerplay;
extern unsigned amdgpu_pcie_gen_cap;
extern unsigned amdgpu_pcie_lane_cap;
/* max number of IP instances */
#define AMDGPU_MAX_SDMA_INSTANCES 2
-/* number of hw syncs before falling back on blocking */
-#define AMDGPU_NUM_SYNCS 4
-
/* hardcode that limit for now */
#define AMDGPU_VA_RESERVED_SIZE (8 << 20)
struct amdgpu_ib;
struct amdgpu_vm;
struct amdgpu_ring;
-struct amdgpu_semaphore;
struct amdgpu_cs_parser;
struct amdgpu_job;
struct amdgpu_irq_src;
unsigned count);
/* write pte one entry at a time with addr mapping */
void (*write_pte)(struct amdgpu_ib *ib,
- uint64_t pe,
+ const dma_addr_t *pages_addr, uint64_t pe,
uint64_t addr, unsigned count,
uint32_t incr, uint32_t flags);
/* for linear pte/pde updates without addr mapping */
uint64_t pe,
uint64_t addr, unsigned count,
uint32_t incr, uint32_t flags);
- /* pad the indirect buffer to the necessary number of dw */
- void (*pad_ib)(struct amdgpu_ib *ib);
};
/* provided by the gmc block */
struct amdgpu_ib *ib);
void (*emit_fence)(struct amdgpu_ring *ring, uint64_t addr,
uint64_t seq, unsigned flags);
- bool (*emit_semaphore)(struct amdgpu_ring *ring,
- struct amdgpu_semaphore *semaphore,
- bool emit_wait);
void (*emit_vm_flush)(struct amdgpu_ring *ring, unsigned vm_id,
uint64_t pd_addr);
void (*emit_hdp_flush)(struct amdgpu_ring *ring);
int (*test_ib)(struct amdgpu_ring *ring);
/* insert NOP packets */
void (*insert_nop)(struct amdgpu_ring *ring, uint32_t count);
+ /* pad the indirect buffer to the necessary number of dw */
+ void (*pad_ib)(struct amdgpu_ring *ring, struct amdgpu_ib *ib);
};
/*
uint64_t gpu_addr;
volatile uint32_t *cpu_addr;
/* sync_seq is protected by ring emission lock */
- uint64_t sync_seq[AMDGPU_MAX_RINGS];
+ uint64_t sync_seq;
atomic64_t last_seq;
bool initialized;
struct amdgpu_irq_src *irq_src;
int amdgpu_fence_wait_empty(struct amdgpu_ring *ring);
unsigned amdgpu_fence_count_emitted(struct amdgpu_ring *ring);
-bool amdgpu_fence_need_sync(struct amdgpu_fence *fence,
- struct amdgpu_ring *ring);
-void amdgpu_fence_note_sync(struct amdgpu_fence *fence,
- struct amdgpu_ring *ring);
-
/*
* TTM.
*/
/* buffer handling */
const struct amdgpu_buffer_funcs *buffer_funcs;
struct amdgpu_ring *buffer_funcs_ring;
+ /* Scheduler entity for buffer moves */
+ struct amd_sched_entity entity;
};
int amdgpu_copy_buffer(struct amdgpu_ring *ring,
struct amdgpu_bo *robj;
struct ttm_validate_buffer tv;
struct amdgpu_bo_va *bo_va;
- unsigned prefered_domains;
- unsigned allowed_domains;
uint32_t priority;
};
/* Protected by gem.mutex */
struct list_head list;
/* Protected by tbo.reserved */
- u32 initial_domain;
+ u32 prefered_domains;
+ u32 allowed_domains;
struct ttm_place placements[AMDGPU_GEM_DOMAIN_MAX + 1];
struct ttm_placement placement;
struct ttm_buffer_object tbo;
struct amdgpu_bo *parent;
struct ttm_bo_kmap_obj dma_buf_vmap;
- pid_t pid;
struct amdgpu_mn *mn;
struct list_head mn_list;
};
/*
* GEM objects.
*/
-struct amdgpu_gem {
- struct mutex mutex;
- struct list_head objects;
-};
-
-int amdgpu_gem_init(struct amdgpu_device *adev);
-void amdgpu_gem_fini(struct amdgpu_device *adev);
+void amdgpu_gem_force_release(struct amdgpu_device *adev);
int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size,
int alignment, u32 initial_domain,
u64 flags, bool kernel,
int amdgpu_mode_dumb_mmap(struct drm_file *filp,
struct drm_device *dev,
uint32_t handle, uint64_t *offset_p);
-
-/*
- * Semaphores.
- */
-struct amdgpu_semaphore {
- struct amdgpu_sa_bo *sa_bo;
- signed waiters;
- uint64_t gpu_addr;
-};
-
-int amdgpu_semaphore_create(struct amdgpu_device *adev,
- struct amdgpu_semaphore **semaphore);
-bool amdgpu_semaphore_emit_signal(struct amdgpu_ring *ring,
- struct amdgpu_semaphore *semaphore);
-bool amdgpu_semaphore_emit_wait(struct amdgpu_ring *ring,
- struct amdgpu_semaphore *semaphore);
-void amdgpu_semaphore_free(struct amdgpu_device *adev,
- struct amdgpu_semaphore **semaphore,
- struct fence *fence);
-
/*
* Synchronization
*/
struct amdgpu_sync {
- struct amdgpu_semaphore *semaphores[AMDGPU_NUM_SYNCS];
- struct fence *sync_to[AMDGPU_MAX_RINGS];
DECLARE_HASHTABLE(fences, 4);
struct fence *last_vm_update;
};
struct amdgpu_sync *sync,
struct reservation_object *resv,
void *owner);
-int amdgpu_sync_rings(struct amdgpu_sync *sync,
- struct amdgpu_ring *ring);
struct fence *amdgpu_sync_get_fence(struct amdgpu_sync *sync);
int amdgpu_sync_wait(struct amdgpu_sync *sync);
-void amdgpu_sync_free(struct amdgpu_device *adev, struct amdgpu_sync *sync,
- struct fence *fence);
+void amdgpu_sync_free(struct amdgpu_sync *sync);
/*
* GART structures, functions & helpers
struct fence *excl;
unsigned shared_count;
struct fence **shared;
+ struct fence_cb cb;
};
uint32_t length_dw;
uint64_t gpu_addr;
uint32_t *ptr;
- struct amdgpu_ring *ring;
struct amdgpu_fence *fence;
struct amdgpu_user_fence *user;
struct amdgpu_vm *vm;
+ unsigned vm_id;
+ uint64_t vm_pd_addr;
struct amdgpu_ctx *ctx;
- struct amdgpu_sync sync;
uint32_t gds_base, gds_size;
uint32_t gws_base, gws_size;
uint32_t oa_base, oa_size;
extern struct amd_sched_backend_ops amdgpu_sched_ops;
-int amdgpu_sched_ib_submit_kernel_helper(struct amdgpu_device *adev,
- struct amdgpu_ring *ring,
- struct amdgpu_ib *ibs,
- unsigned num_ibs,
- int (*free_job)(struct amdgpu_job *),
- void *owner,
- struct fence **fence);
+int amdgpu_job_alloc(struct amdgpu_device *adev, unsigned num_ibs,
+ struct amdgpu_job **job);
+int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev, unsigned size,
+ struct amdgpu_job **job);
+void amdgpu_job_free(struct amdgpu_job *job);
+int amdgpu_job_submit(struct amdgpu_job *job, struct amdgpu_ring *ring,
+ struct amd_sched_entity *entity, void *owner,
+ struct fence **f);
struct amdgpu_ring {
struct amdgpu_device *adev;
struct amd_gpu_scheduler sched;
spinlock_t fence_lock;
- struct mutex *ring_lock;
struct amdgpu_bo *ring_obj;
volatile uint32_t *ring;
unsigned rptr_offs;
unsigned wptr;
unsigned wptr_old;
unsigned ring_size;
- unsigned ring_free_dw;
+ unsigned max_dw;
int count_dw;
uint64_t gpu_addr;
uint32_t align_mask;
bool ready;
u32 nop;
u32 idx;
- u64 last_semaphore_signal_addr;
- u64 last_semaphore_wait_addr;
u32 me;
u32 pipe;
u32 queue;
struct amdgpu_ctx *current_ctx;
enum amdgpu_ring_type type;
char name[16];
- bool is_pte_ring;
};
/*
};
struct amdgpu_vm_id {
- unsigned id;
- uint64_t pd_gpu_addr;
+ struct amdgpu_vm_manager_id *mgr_id;
+ uint64_t pd_gpu_addr;
/* last flushed PD/PT update */
- struct fence *flushed_updates;
+ struct fence *flushed_updates;
};
struct amdgpu_vm {
+ /* tree of virtual addresses mapped */
+ spinlock_t it_lock;
struct rb_root va;
/* protecting invalidated */
/* for id and flush management per ring */
struct amdgpu_vm_id ids[AMDGPU_MAX_RINGS];
- /* for interval tree */
- spinlock_t it_lock;
+
/* protecting freed */
spinlock_t freed_lock;
+
+ /* Scheduler entity for page table updates */
+ struct amd_sched_entity entity;
+};
+
+struct amdgpu_vm_manager_id {
+ struct list_head list;
+ struct fence *active;
+ atomic_long_t owner;
};
struct amdgpu_vm_manager {
- struct {
- struct fence *active;
- atomic_long_t owner;
- } ids[AMDGPU_NUM_VM];
+ /* Handling of VMIDs */
+ struct mutex lock;
+ unsigned num_ids;
+ struct list_head ids_lru;
+ struct amdgpu_vm_manager_id ids[AMDGPU_NUM_VM];
uint32_t max_pfn;
- /* number of VMIDs */
- unsigned nvm;
/* vram base address for page table entry */
u64 vram_base_offset;
/* is vm enabled? */
bool enabled;
/* vm pte handling */
const struct amdgpu_vm_pte_funcs *vm_pte_funcs;
- struct amdgpu_ring *vm_pte_funcs_ring;
+ struct amdgpu_ring *vm_pte_rings[AMDGPU_MAX_RINGS];
+ unsigned vm_pte_num_rings;
+ atomic_t vm_pte_next_ring;
};
+void amdgpu_vm_manager_init(struct amdgpu_device *adev);
void amdgpu_vm_manager_fini(struct amdgpu_device *adev);
int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm);
void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm);
void amdgpu_vm_move_pt_bos_in_lru(struct amdgpu_device *adev,
struct amdgpu_vm *vm);
int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
- struct amdgpu_sync *sync);
+ struct amdgpu_sync *sync, struct fence *fence,
+ unsigned *vm_id, uint64_t *vm_pd_addr);
void amdgpu_vm_flush(struct amdgpu_ring *ring,
- struct amdgpu_vm *vm,
- struct fence *updates);
-void amdgpu_vm_fence(struct amdgpu_device *adev,
- struct amdgpu_vm *vm,
- struct fence *fence);
-uint64_t amdgpu_vm_map_gart(struct amdgpu_device *adev, uint64_t addr);
+ unsigned vmid,
+ uint64_t pd_addr);
+uint64_t amdgpu_vm_map_gart(const dma_addr_t *pages_addr, uint64_t addr);
int amdgpu_vm_update_page_directory(struct amdgpu_device *adev,
struct amdgpu_vm *vm);
int amdgpu_vm_clear_freed(struct amdgpu_device *adev,
uint64_t addr);
void amdgpu_vm_bo_rmv(struct amdgpu_device *adev,
struct amdgpu_bo_va *bo_va);
-int amdgpu_vm_free_job(struct amdgpu_job *job);
/*
* context related structures
struct idr ctx_handles;
};
-int amdgpu_ctx_init(struct amdgpu_device *adev, enum amd_sched_priority pri,
- struct amdgpu_ctx *ctx);
-void amdgpu_ctx_fini(struct amdgpu_ctx *ctx);
-
struct amdgpu_ctx *amdgpu_ctx_get(struct amdgpu_fpriv *fpriv, uint32_t id);
int amdgpu_ctx_put(struct amdgpu_ctx *ctx);
struct amdgpu_bo_list *
amdgpu_bo_list_get(struct amdgpu_fpriv *fpriv, int id);
+void amdgpu_bo_list_get_list(struct amdgpu_bo_list *list,
+ struct list_head *validated);
void amdgpu_bo_list_put(struct amdgpu_bo_list *list);
void amdgpu_bo_list_free(struct amdgpu_bo_list *list);
unsigned multi_gpu_tile_size;
unsigned mc_arb_ramcfg;
unsigned gb_addr_config;
+ unsigned num_rbs;
uint32_t tile_mode_array[32];
uint32_t macrotile_mode_array[16];
unsigned ce_ram_size;
};
-int amdgpu_ib_get(struct amdgpu_ring *ring, struct amdgpu_vm *vm,
+int amdgpu_ib_get(struct amdgpu_device *adev, struct amdgpu_vm *vm,
unsigned size, struct amdgpu_ib *ib);
void amdgpu_ib_free(struct amdgpu_device *adev, struct amdgpu_ib *ib);
-int amdgpu_ib_schedule(struct amdgpu_device *adev, unsigned num_ibs,
- struct amdgpu_ib *ib, void *owner);
+int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
+ struct amdgpu_ib *ib, void *owner,
+ struct fence *last_vm_update,
+ struct fence **f);
int amdgpu_ib_pool_init(struct amdgpu_device *adev);
void amdgpu_ib_pool_fini(struct amdgpu_device *adev);
int amdgpu_ib_ring_tests(struct amdgpu_device *adev);
-/* Ring access between begin & end cannot sleep */
-void amdgpu_ring_free_size(struct amdgpu_ring *ring);
int amdgpu_ring_alloc(struct amdgpu_ring *ring, unsigned ndw);
-int amdgpu_ring_lock(struct amdgpu_ring *ring, unsigned ndw);
void amdgpu_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count);
+void amdgpu_ring_generic_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib);
void amdgpu_ring_commit(struct amdgpu_ring *ring);
-void amdgpu_ring_unlock_commit(struct amdgpu_ring *ring);
void amdgpu_ring_undo(struct amdgpu_ring *ring);
-void amdgpu_ring_unlock_undo(struct amdgpu_ring *ring);
unsigned amdgpu_ring_backup(struct amdgpu_ring *ring,
uint32_t **data);
int amdgpu_ring_restore(struct amdgpu_ring *ring,
uint32_t chunk_id;
uint32_t length_dw;
uint32_t *kdata;
- void __user *user_ptr;
};
struct amdgpu_cs_parser {
struct amdgpu_device *adev;
struct drm_file *filp;
struct amdgpu_ctx *ctx;
- struct amdgpu_bo_list *bo_list;
+
/* chunks */
unsigned nchunks;
struct amdgpu_cs_chunk *chunks;
- /* relocations */
- struct amdgpu_bo_list_entry vm_pd;
- struct list_head validated;
- struct fence *fence;
- struct amdgpu_ib *ibs;
- uint32_t num_ibs;
+ /* scheduler job object */
+ struct amdgpu_job *job;
- struct ww_acquire_ctx ticket;
+ /* buffer objects */
+ struct ww_acquire_ctx ticket;
+ struct amdgpu_bo_list *bo_list;
+ struct amdgpu_bo_list_entry vm_pd;
+ struct list_head validated;
+ struct fence *fence;
+ uint64_t bytes_moved_threshold;
+ uint64_t bytes_moved;
/* user fence */
- struct amdgpu_user_fence uf;
struct amdgpu_bo_list_entry uf_entry;
};
struct amdgpu_job {
struct amd_sched_job base;
struct amdgpu_device *adev;
+ struct amdgpu_ring *ring;
+ struct amdgpu_sync sync;
struct amdgpu_ib *ibs;
uint32_t num_ibs;
void *owner;
struct amdgpu_user_fence uf;
- int (*free_job)(struct amdgpu_job *job);
};
#define to_amdgpu_job(sched_job) \
container_of((sched_job), struct amdgpu_job, base)
-static inline u32 amdgpu_get_ib_value(struct amdgpu_cs_parser *p, uint32_t ib_idx, int idx)
+static inline u32 amdgpu_get_ib_value(struct amdgpu_cs_parser *p,
+ uint32_t ib_idx, int idx)
+{
+ return p->job->ibs[ib_idx].ptr[idx];
+}
+
+static inline void amdgpu_set_ib_value(struct amdgpu_cs_parser *p,
+ uint32_t ib_idx, int idx,
+ uint32_t value)
{
- return p->ibs[ib_idx].ptr[idx];
+ p->job->ibs[ib_idx].ptr[idx] = value;
}
/*
AMDGPU_DPM_FORCED_LEVEL_AUTO = 0,
AMDGPU_DPM_FORCED_LEVEL_LOW = 1,
AMDGPU_DPM_FORCED_LEVEL_HIGH = 2,
+ AMDGPU_DPM_FORCED_LEVEL_MANUAL = 3,
};
struct amdgpu_vce_state {
struct amdgpu_ring ring;
struct amdgpu_irq_src irq;
bool address_64_bit;
+ struct amd_sched_entity entity;
};
/*
struct amdgpu_ring ring[AMDGPU_MAX_VCE_RINGS];
struct amdgpu_irq_src irq;
unsigned harvest_config;
+ struct amd_sched_entity entity;
};
/*
void amdgpu_cgs_destroy_device(void *cgs_device);
+/*
+ * CGS
+ */
+void *amdgpu_cgs_create_device(struct amdgpu_device *adev);
+void amdgpu_cgs_destroy_device(void *cgs_device);
+
+
+/* GPU virtualization */
+struct amdgpu_virtualization {
+ bool supports_sr_iov;
+};
+
/*
* Core structure, functions and helpers.
*/
struct drm_device *ddev;
struct pci_dev *pdev;
+#ifdef CONFIG_DRM_AMD_ACP
+ struct amdgpu_acp acp;
+#endif
+
/* ASIC */
enum amd_asic_type asic_type;
uint32_t family;
/* memory management */
struct amdgpu_mman mman;
- struct amdgpu_gem gem;
struct amdgpu_vram_scratch vram_scratch;
struct amdgpu_wb wb;
atomic64_t vram_usage;
/* rings */
unsigned fence_context;
- struct mutex ring_lock;
unsigned num_rings;
struct amdgpu_ring *rings[AMDGPU_MAX_RINGS];
bool ib_pool_ready;
/* powerplay */
struct amd_powerplay powerplay;
bool pp_enabled;
+ bool pp_force_state_enabled;
/* dpm */
struct amdgpu_pm pm;
/* amdkfd interface */
struct kfd_dev *kfd;
- /* kernel conext for IB submission */
- struct amdgpu_ctx kernel_ctx;
+ struct amdgpu_virtualization virtualization;
};
bool amdgpu_device_is_px(struct drm_device *dev);
ring->ring[ring->wptr++] = v;
ring->wptr &= ring->ptr_mask;
ring->count_dw--;
- ring->ring_free_dw--;
}
static inline struct amdgpu_sdma_instance *
#define amdgpu_gart_flush_gpu_tlb(adev, vmid) (adev)->gart.gart_funcs->flush_gpu_tlb((adev), (vmid))
#define amdgpu_gart_set_pte_pde(adev, pt, idx, addr, flags) (adev)->gart.gart_funcs->set_pte_pde((adev), (pt), (idx), (addr), (flags))
#define amdgpu_vm_copy_pte(adev, ib, pe, src, count) ((adev)->vm_manager.vm_pte_funcs->copy_pte((ib), (pe), (src), (count)))
-#define amdgpu_vm_write_pte(adev, ib, pe, addr, count, incr, flags) ((adev)->vm_manager.vm_pte_funcs->write_pte((ib), (pe), (addr), (count), (incr), (flags)))
+#define amdgpu_vm_write_pte(adev, ib, pa, pe, addr, count, incr, flags) ((adev)->vm_manager.vm_pte_funcs->write_pte((ib), (pa), (pe), (addr), (count), (incr), (flags)))
#define amdgpu_vm_set_pte_pde(adev, ib, pe, addr, count, incr, flags) ((adev)->vm_manager.vm_pte_funcs->set_pte_pde((ib), (pe), (addr), (count), (incr), (flags)))
-#define amdgpu_vm_pad_ib(adev, ib) ((adev)->vm_manager.vm_pte_funcs->pad_ib((ib)))
#define amdgpu_ring_parse_cs(r, p, ib) ((r)->funcs->parse_cs((p), (ib)))
#define amdgpu_ring_test_ring(r) (r)->funcs->test_ring((r))
#define amdgpu_ring_test_ib(r) (r)->funcs->test_ib((r))
#define amdgpu_ring_emit_ib(r, ib) (r)->funcs->emit_ib((r), (ib))
#define amdgpu_ring_emit_vm_flush(r, vmid, addr) (r)->funcs->emit_vm_flush((r), (vmid), (addr))
#define amdgpu_ring_emit_fence(r, addr, seq, flags) (r)->funcs->emit_fence((r), (addr), (seq), (flags))
-#define amdgpu_ring_emit_semaphore(r, semaphore, emit_wait) (r)->funcs->emit_semaphore((r), (semaphore), (emit_wait))
#define amdgpu_ring_emit_gds_switch(r, v, db, ds, wb, ws, ab, as) (r)->funcs->emit_gds_switch((r), (v), (db), (ds), (wb), (ws), (ab), (as))
#define amdgpu_ring_emit_hdp_flush(r) (r)->funcs->emit_hdp_flush((r))
+#define amdgpu_ring_pad_ib(r, ib) ((r)->funcs->pad_ib((r), (ib)))
#define amdgpu_ih_get_wptr(adev) (adev)->irq.ih_funcs->get_wptr((adev))
#define amdgpu_ih_decode_iv(adev, iv) (adev)->irq.ih_funcs->decode_iv((adev), (iv))
#define amdgpu_ih_set_rptr(adev) (adev)->irq.ih_funcs->set_rptr((adev))
#define amdgpu_dpm_get_performance_level(adev) \
(adev)->powerplay.pp_funcs->get_performance_level((adev)->powerplay.pp_handle)
+#define amdgpu_dpm_get_pp_num_states(adev, data) \
+ (adev)->powerplay.pp_funcs->get_pp_num_states((adev)->powerplay.pp_handle, data)
+
+#define amdgpu_dpm_get_pp_table(adev, table) \
+ (adev)->powerplay.pp_funcs->get_pp_table((adev)->powerplay.pp_handle, table)
+
+#define amdgpu_dpm_set_pp_table(adev, buf, size) \
+ (adev)->powerplay.pp_funcs->set_pp_table((adev)->powerplay.pp_handle, buf, size)
+
+#define amdgpu_dpm_print_clock_levels(adev, type, buf) \
+ (adev)->powerplay.pp_funcs->print_clock_levels((adev)->powerplay.pp_handle, type, buf)
+
+#define amdgpu_dpm_force_clock_level(adev, type, level) \
+ (adev)->powerplay.pp_funcs->force_clock_level((adev)->powerplay.pp_handle, type, level)
+
#define amdgpu_dpm_dispatch_task(adev, event_id, input, output) \
(adev)->powerplay.pp_funcs->dispatch_tasks((adev)->powerplay.pp_handle, (event_id), (input), (output))
void amdgpu_pci_config_reset(struct amdgpu_device *adev);
bool amdgpu_card_posted(struct amdgpu_device *adev);
void amdgpu_update_display_priority(struct amdgpu_device *adev);
-bool amdgpu_boot_test_post_card(struct amdgpu_device *adev);
int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data);
int amdgpu_cs_get_ring(struct amdgpu_device *adev, u32 ip_type,
int amdgpu_ttm_tt_set_userptr(struct ttm_tt *ttm, uint64_t addr,
uint32_t flags);
bool amdgpu_ttm_tt_has_userptr(struct ttm_tt *ttm);
+struct mm_struct *amdgpu_ttm_tt_get_usermm(struct ttm_tt *ttm);
bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start,
unsigned long end);
bool amdgpu_ttm_tt_is_readonly(struct ttm_tt *ttm);
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