/*
* GK20A graphics fifo (gr host)
*
* Copyright (c) 2011-2021, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef FIFO_GK20A_H
#define FIFO_GK20A_H
#include <nvgpu/kref.h>
struct gk20a_debug_output;
struct mmu_fault_info;
struct nvgpu_semaphore;
struct channel_gk20a;
struct tsg_gk20a;
enum {
NVGPU_FIFO_RUNLIST_INTERLEAVE_LEVEL_LOW = 0,
NVGPU_FIFO_RUNLIST_INTERLEAVE_LEVEL_MEDIUM,
NVGPU_FIFO_RUNLIST_INTERLEAVE_LEVEL_HIGH,
NVGPU_FIFO_RUNLIST_INTERLEAVE_NUM_LEVELS,
};
#define MAX_RUNLIST_BUFFERS 2
#define FIFO_INVAL_ENGINE_ID ((u32)~0)
#define FIFO_INVAL_CHANNEL_ID ((u32)~0)
#define FIFO_INVAL_TSG_ID ((u32)~0)
#define FIFO_INVAL_RUNLIST_ID ((u32)~0)
#define ID_TYPE_CHANNEL 0
#define ID_TYPE_TSG 1
#define ID_TYPE_UNKNOWN ((u32)~0)
#define RC_YES 1
#define RC_NO 0
#define GRFIFO_TIMEOUT_CHECK_PERIOD_US 100000
#define RC_TYPE_NO_RC 0
#define RC_TYPE_MMU_FAULT 1
#define RC_TYPE_PBDMA_FAULT 2
#define RC_TYPE_GR_FAULT 3
#define RC_TYPE_PREEMPT_TIMEOUT 4
#define RC_TYPE_CTXSW_TIMEOUT 5
#define RC_TYPE_RUNLIST_UPDATE_TIMEOUT 6
#define RC_TYPE_FORCE_RESET 7
#define RC_TYPE_SCHED_ERR 8
#define NVGPU_FIFO_DEFAULT_TIMESLICE_TIMEOUT 128UL
#define NVGPU_FIFO_DEFAULT_TIMESLICE_SCALE 3UL
/*
* Number of entries in the kickoff latency buffer, used to calculate
* the profiling and histogram. This number is calculated to be statistically
* significative on a histogram on a 5% step
*/
#ifdef CONFIG_DEBUG_FS
#define FIFO_PROFILING_ENTRIES 16384
#endif
#define RUNLIST_DISABLED 0
#define RUNLIST_ENABLED 1
/* generally corresponds to the "pbdma" engine */
struct fifo_runlist_info_gk20a {
unsigned long *active_channels;
unsigned long *active_tsgs;
/* Each engine has its own SW and HW runlist buffer.*/
struct nvgpu_mem mem[MAX_RUNLIST_BUFFERS];
u32 cur_buffer;
u32 total_entries;
u32 pbdma_bitmask; /* pbdmas supported for this runlist*/
u32 eng_bitmask; /* engines using this runlist */
u32 reset_eng_bitmask; /* engines to be reset during recovery */
u32 count; /* cached runlist_hw_submit parameter */
bool stopped;
bool support_tsg;
/* protect ch/tsg/runlist preempt & runlist update */
struct nvgpu_mutex runlist_lock;
};
enum {
ENGINE_GR_GK20A = 0U,
ENGINE_GRCE_GK20A = 1U,
ENGINE_ASYNC_CE_GK20A = 2U,
ENGINE_INVAL_GK20A = 3U,
};
struct fifo_pbdma_exception_info_gk20a {
u32 status_r; /* raw register value from hardware */
u32 id, next_id;
u32 chan_status_v; /* raw value from hardware */
bool id_is_chid, next_id_is_chid;
bool chsw_in_progress;
};
struct fifo_engine_exception_info_gk20a {
u32 status_r; /* raw register value from hardware */
u32 id, next_id;
u32 ctx_status_v; /* raw value from hardware */
bool id_is_chid, next_id_is_chid;
bool faulted, idle, ctxsw_in_progress;
};
struct fifo_engine_info_gk20a {
u32 engine_id;
u32 runlist_id;
u32 intr_mask;
u32 reset_mask;
u32 pbdma_id;
u32 inst_id;
u32 pri_base;
u32 fault_id;
u32 engine_enum;
struct fifo_pbdma_exception_info_gk20a pbdma_exception_info;
struct fifo_engine_exception_info_gk20a engine_exception_info;
};
enum {
PROFILE_IOCTL_ENTRY = 0U,
PROFILE_ENTRY,
PROFILE_JOB_TRACKING,
PROFILE_APPEND,
PROFILE_END,
PROFILE_IOCTL_EXIT,
PROFILE_MAX
};
struct fifo_profile_gk20a {
u64 timestamp[PROFILE_MAX];
};
struct fifo_gk20a {
struct gk20a *g;
unsigned int num_channels;
unsigned int runlist_entry_size;
unsigned int num_runlist_entries;
unsigned int num_pbdma;
u32 *pbdma_map;
struct fifo_engine_info_gk20a *engine_info;
u32 max_engines;
u32 num_engines;
u32 *active_engines_list;
struct fifo_runlist_info_gk20a *runlist_info;
u32 max_runlists;
#ifdef CONFIG_DEBUG_FS
struct {
struct fifo_profile_gk20a *data;
nvgpu_atomic_t get;
bool enabled;
u64 *sorted;
struct nvgpu_ref ref;
struct nvgpu_mutex lock;
} profile;
#endif
struct nvgpu_mem userd;
u32 userd_entry_size;
unsigned int used_channels;
struct channel_gk20a *channel;
/* zero-kref'd channels here */
struct nvgpu_list_node free_chs;
struct nvgpu_mutex free_chs_mutex;
struct nvgpu_mutex engines_reset_mutex;
struct tsg_gk20a *tsg;
struct nvgpu_mutex tsg_inuse_mutex;
void (*remove_support)(struct fifo_gk20a *);
bool sw_ready;
struct {
/* share info between isrs and non-isr code */
struct {
struct nvgpu_mutex mutex;
} isr;
struct {
u32 device_fatal_0;
u32 channel_fatal_0;
u32 restartable_0;
} pbdma;
struct {
} engine;
} intr;
unsigned long deferred_fault_engines;
bool deferred_reset_pending;
struct nvgpu_mutex deferred_reset_mutex;
u32 max_subctx_count;
u32 channel_base;
};
struct ch_state {
int pid;
int refs;
bool deterministic;
u32 inst_block[0];
};
int gk20a_init_fifo_support(struct gk20a *g);
int gk20a_init_fifo_setup_hw(struct gk20a *g);
void gk20a_fifo_isr(struct gk20a *g);
u32 gk20a_fifo_nonstall_isr(struct gk20a *g);
int gk20a_fifo_preempt_channel(struct gk20a *g, struct channel_gk20a *ch);
int gk20a_fifo_preempt_tsg(struct gk20a *g, struct tsg_gk20a *tsg);
int gk20a_fifo_preempt(struct gk20a *g, struct channel_gk20a *ch);
int gk20a_fifo_enable_engine_activity(struct gk20a *g,
struct fifo_engine_info_gk20a *eng_info);
int gk20a_fifo_enable_all_engine_activity(struct gk20a *g);
int gk20a_fifo_disable_engine_activity(struct gk20a *g,
struct fifo_engine_info_gk20a *eng_info,
bool wait_for_idle);
int gk20a_fifo_disable_all_engine_activity(struct gk20a *g,
bool wait_for_idle);
void gk20a_fifo_enable_tsg_sched(struct gk20a *g, struct tsg_gk20a *tsg);
void gk20a_fifo_disable_tsg_sched(struct gk20a *g, struct tsg_gk20a *tsg);
u32 gk20a_fifo_engines_on_ch(struct gk20a *g, u32 chid);
int gk20a_fifo_reschedule_runlist(struct channel_gk20a *ch, bool preempt_next);
int nvgpu_fifo_reschedule_runlist(struct channel_gk20a *ch, bool preempt_next,
bool wait_preempt);
int gk20a_fifo_update_runlist(struct gk20a *g, u32 engine_id, u32 chid,
bool add, bool wait_for_finish);
int gk20a_fifo_update_runlist_locked(struct gk20a *g, u32 runlist_id,
u32 chid, bool add,
bool wait_for_finish);
int gk20a_fifo_suspend(struct gk20a *g);
bool gk20a_fifo_mmu_fault_pending(struct gk20a *g);
void gk20a_fifo_recover(struct gk20a *g,
u32 engine_ids, /* if zero, will be queried from HW */
u32 hw_id, /* if ~0, will be queried from HW */
bool id_is_tsg, /* ignored if hw_id == ~0 */
bool id_is_known, bool verbose, int rc_type);
void gk20a_fifo_recover_ch(struct gk20a *g, struct channel_gk20a *ch,
bool verbose, u32 rc_type);
void gk20a_fifo_recover_tsg(struct gk20a *g, struct tsg_gk20a *tsg,
bool verbose, u32 rc_type);
int gk20a_fifo_force_reset_ch(struct channel_gk20a *ch,
u32 err_code, bool verbose);
void gk20a_fifo_reset_engine(struct gk20a *g, u32 engine_id);
int gk20a_init_fifo_reset_enable_hw(struct gk20a *g);
int gk20a_fifo_tsg_unbind_channel(struct channel_gk20a *ch);
void fifo_gk20a_finish_mmu_fault_handling(struct gk20a *g,
unsigned long fault_id);
int gk20a_fifo_wait_engine_idle(struct gk20a *g);
bool gk20a_fifo_is_engine_busy(struct gk20a *g);
u32 gk20a_fifo_engine_interrupt_mask(struct gk20a *g);
u32 gk20a_fifo_act_eng_interrupt_mask(struct gk20a *g, u32 act_eng_id);
u32 gk20a_fifo_get_pbdma_signature(struct gk20a *g);
u32 gk20a_fifo_get_failing_engine_data(struct gk20a *g,
int *__id, bool *__is_tsg);
void gk20a_fifo_set_ctx_mmu_error_tsg(struct gk20a *g,
struct tsg_gk20a *tsg);
void gk20a_fifo_abort_tsg(struct gk20a *g, struct tsg_gk20a *tsg, bool preempt);
void gk20a_fifo_set_ctx_mmu_error_ch(struct gk20a *g,
struct channel_gk20a *refch);
bool gk20a_fifo_error_tsg(struct gk20a *g, struct tsg_gk20a *tsg);
bool gk20a_fifo_error_ch(struct gk20a *g, struct channel_gk20a *refch);
void gk20a_fifo_issue_preempt(struct gk20a *g, u32 id, bool is_tsg);
int gk20a_fifo_set_runlist_interleave(struct gk20a *g,
u32 id,
u32 runlist_id,
u32 new_level);
int gk20a_fifo_tsg_set_timeslice(struct tsg_gk20a *tsg, u32 timeslice);
const char *gk20a_fifo_interleave_level_name(u32 interleave_level);
int gk20a_fifo_engine_enum_from_type(struct gk20a *g, u32 engine_type,
u32 *inst_id);
u32 gk20a_fifo_get_engine_ids(struct gk20a *g, u32 engine_id[],
u32 engine_id_sz, u32 engine_enum);
void gk20a_fifo_delete_runlist(struct fifo_gk20a *f);
struct fifo_engine_info_gk20a *gk20a_fifo_get_engine_info(struct gk20a *g,
u32 engine_id);
bool gk20a_fifo_is_valid_engine_id(struct gk20a *g, u32 engine_id);
u32 gk20a_fifo_get_gr_engine_id(struct gk20a *g);
int gk20a_fifo_deferred_reset(struct gk20a *g, struct channel_gk20a *ch);
u32 gk20a_fifo_get_all_ce_engine_reset_mask(struct gk20a *g);
u32 gk20a_fifo_get_fast_ce_runlist_id(struct gk20a *g);
u32 gk20a_fifo_get_gr_runlist_id(struct gk20a *g);
bool gk20a_fifo_is_valid_runlist_id(struct gk20a *g, u32 runlist_id);
int gk20a_fifo_update_runlist_ids(struct gk20a *g, u32 runlist_ids, u32 chid,
bool add, bool wait_for_finish);
int gk20a_fifo_init_engine_info(struct fifo_gk20a *f);
void gk20a_get_tsg_runlist_entry(struct tsg_gk20a *tsg, u32 *runlist);
void gk20a_get_ch_runlist_entry(struct channel_gk20a *ch, u32 *runlist);
void gk20a_fifo_set_runlist_state(struct gk20a *g, u32 runlists_mask,
u32 runlist_state);
u32 gk20a_fifo_userd_gp_get(struct gk20a *g, struct channel_gk20a *c);
void gk20a_fifo_userd_gp_put(struct gk20a *g, struct channel_gk20a *c);
u64 gk20a_fifo_userd_pb_get(struct gk20a *g, struct channel_gk20a *c);
bool gk20a_is_fault_engine_subid_gpc(struct gk20a *g, u32 engine_subid);
#ifdef CONFIG_DEBUG_FS
struct fifo_profile_gk20a *gk20a_fifo_profile_acquire(struct gk20a *g);
void gk20a_fifo_profile_release(struct gk20a *g,
struct fifo_profile_gk20a *profile);
void gk20a_fifo_profile_snapshot(struct fifo_profile_gk20a *profile, int idx);
#else
static inline struct fifo_profile_gk20a *
gk20a_fifo_profile_acquire(struct gk20a *g)
{
return NULL;
}
static inline void gk20a_fifo_profile_release(struct gk20a *g,
struct fifo_profile_gk20a *profile)
{
}
static inline void gk20a_fifo_profile_snapshot(
struct fifo_profile_gk20a *profile, int idx)
{
}
#endif
void gk20a_dump_channel_status_ramfc(struct gk20a *g,
struct gk20a_debug_output *o,
u32 chid,
struct ch_state *ch_state);
void gk20a_debug_dump_all_channel_status_ramfc(struct gk20a *g,
struct gk20a_debug_output *o);
void gk20a_dump_pbdma_status(struct gk20a *g,
struct gk20a_debug_output *o);
void gk20a_dump_eng_status(struct gk20a *g,
struct gk20a_debug_output *o);
const char *gk20a_decode_ccsr_chan_status(u32 index);
const char *gk20a_decode_pbdma_chan_eng_ctx_status(u32 index);
void gk20a_fifo_enable_channel(struct channel_gk20a *ch);
void gk20a_fifo_disable_channel(struct channel_gk20a *ch);
bool gk20a_fifo_channel_status_is_next(struct gk20a *g, u32 chid);
bool gk20a_fifo_channel_status_is_ctx_reload(struct gk20a *g, u32 chid);
int gk20a_fifo_tsg_unbind_channel_verify_status(struct channel_gk20a *ch);
struct channel_gk20a *gk20a_refch_from_inst_ptr(struct gk20a *g, u64 inst_ptr);
void gk20a_fifo_channel_unbind(struct channel_gk20a *ch_gk20a);
u32 gk20a_fifo_intr_0_error_mask(struct gk20a *g);
int gk20a_fifo_is_preempt_pending(struct gk20a *g, u32 id,
unsigned int id_type, bool preempt_retries_left);
int __locked_fifo_preempt(struct gk20a *g, u32 id, bool is_tsg,
bool preempt_retries_left);
void gk20a_fifo_preempt_timeout_rc_tsg(struct gk20a *g, struct tsg_gk20a *tsg);
void gk20a_fifo_preempt_timeout_rc(struct gk20a *g, struct channel_gk20a *ch);
int gk20a_fifo_setup_ramfc(struct channel_gk20a *c,
u64 gpfifo_base, u32 gpfifo_entries,
unsigned long timeout, u32 flags);
void gk20a_fifo_setup_ramfc_for_privileged_channel(struct channel_gk20a *c);
int gk20a_fifo_alloc_inst(struct gk20a *g, struct channel_gk20a *ch);
void gk20a_fifo_free_inst(struct gk20a *g, struct channel_gk20a *ch);
int gk20a_fifo_setup_userd(struct channel_gk20a *c);
u32 gk20a_fifo_pbdma_acquire_val(u64 timeout);
u32 *gk20a_runlist_construct_locked(struct fifo_gk20a *f,
struct fifo_runlist_info_gk20a *runlist,
u32 cur_level,
u32 *runlist_entry,
bool interleave_enabled,
bool prev_empty,
u32 *entries_left);
void gk20a_fifo_runlist_hw_submit(struct gk20a *g, u32 runlist_id,
u32 count, u32 buffer_index);
int gk20a_fifo_runlist_wait_pending(struct gk20a *g, u32 runlist_id);
int gk20a_init_fifo_setup_sw_common(struct gk20a *g);
int gk20a_init_fifo_setup_sw(struct gk20a *g);
void gk20a_fifo_handle_runlist_event(struct gk20a *g);
bool gk20a_fifo_should_defer_engine_reset(struct gk20a *g, u32 engine_id,
u32 engine_subid, bool fake_fault);
void gk20a_fifo_teardown_ch_tsg(struct gk20a *g, u32 __engine_ids,
u32 hw_id, unsigned int id_type, unsigned int rc_type,
struct mmu_fault_info *mmfault);
bool gk20a_fifo_check_ch_ctxsw_timeout(struct channel_gk20a *ch,
bool *verbose, u32 *ms);
bool gk20a_fifo_check_tsg_ctxsw_timeout(struct tsg_gk20a *tsg,
bool *verbose, u32 *ms);
void gk20a_fifo_teardown_mask_intr(struct gk20a *g);
void gk20a_fifo_teardown_unmask_intr(struct gk20a *g);
bool gk20a_fifo_handle_sched_error(struct gk20a *g);
void gk20a_fifo_reset_pbdma_method(struct gk20a *g, int pbdma_id,
int pbdma_method_index);
unsigned int gk20a_fifo_handle_pbdma_intr_0(struct gk20a *g, u32 pbdma_id,
u32 pbdma_intr_0, u32 *handled, u32 *error_notifier);
unsigned int gk20a_fifo_handle_pbdma_intr_1(struct gk20a *g, u32 pbdma_id,
u32 pbdma_intr_1, u32 *handled, u32 *error_notifier);
u32 gk20a_fifo_handle_pbdma_intr(struct gk20a *g, struct fifo_gk20a *f,
u32 pbdma_id, unsigned int rc);
u32 gk20a_fifo_default_timeslice_us(struct gk20a *g);
#ifdef CONFIG_TEGRA_GK20A_NVHOST
void gk20a_fifo_add_syncpt_wait_cmd(struct gk20a *g,
struct priv_cmd_entry *cmd, u32 off,
u32 id, u32 thresh, u64 gpu_va);
u32 gk20a_fifo_get_syncpt_wait_cmd_size(void);
u32 gk20a_fifo_get_syncpt_incr_per_release(void);
void gk20a_fifo_add_syncpt_incr_cmd(struct gk20a *g,
bool wfi_cmd, struct priv_cmd_entry *cmd,
u32 id, u64 gpu_va);
u32 gk20a_fifo_get_syncpt_incr_cmd_size(bool wfi_cmd);
void gk20a_fifo_free_syncpt_buf(struct channel_gk20a *c,
struct nvgpu_mem *syncpt_buf);
int gk20a_fifo_alloc_syncpt_buf(struct channel_gk20a *c,
u32 syncpt_id, struct nvgpu_mem *syncpt_buf);
#endif
void gk20a_fifo_get_mmu_fault_info(struct gk20a *g, u32 mmu_fault_id,
struct mmu_fault_info *mmfault);
void gk20a_fifo_get_mmu_fault_desc(struct mmu_fault_info *mmfault);
void gk20a_fifo_get_mmu_fault_client_desc(struct mmu_fault_info *mmfault);
void gk20a_fifo_get_mmu_fault_gpc_desc(struct mmu_fault_info *mmfault);
u32 gk20a_fifo_get_sema_wait_cmd_size(void);
u32 gk20a_fifo_get_sema_incr_cmd_size(void);
void gk20a_fifo_add_sema_cmd(struct gk20a *g,
struct nvgpu_semaphore *s, u64 sema_va,
struct priv_cmd_entry *cmd,
u32 off, bool acquire, bool wfi);
#endif /* FIFO_GK20A_H */
