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The review found three ways rtss-profile.txt could fall behind the profile. Every write after a run's first one saved the profile before the line, so a kill between the two left a line whose value the profile no longer held, and the next start took the game's limit for the player's (rtss_restore_plan LEAVE). A put back whose write did not land kept the line, but rtss_put_back_done cleared S.changed, so a later limit took the run's first-write path again and read the game's own limit from the profile as the value to put back, overwriting the true one in the line. And put_back removed the line after DeleteProfile without checking that the profile went away. The line now carries the value the run wrote before the newest one (rtss_decide.h RtssSaved prev_limit and prev_den, rtss1 with two more fields; the file came with this branch and was never released). rtss_limit.c apply writes the new value into the line before the profile (record_before) and drops the previous one once the profile holds the new one, or returns to it when RTSS refused it (record_after), and rtss_restore_plan takes a profile holding either value for the game's. A new owed flag keeps had_profile, old_limit and old_denominator from the run's first write until a put back lands: a later first write keeps them and the line's values, a failed first write leaves the line alone, and rtss_limit_restore tries the put back again at the exit. put_back and restore_left check that a deleted profile is gone before they remove the line, and restore_left's lines name the value the profile held. tests/rtss_limit_check.c covers the new fields and the plan for either value; tests/rtss_worker_check.c checks the line before and after a write (state_record), a run killed inside the save of its second limit and the next start removing the profile (kill_restart_mid_write), a put back that did not land followed by a limit and the exit (put_back_owed), and a removal that did not land (put_back_undeleted). Lines over 120 columns from the earlier fixes are wrapped. Not reproduced before the change. Checks that passed: tests/rtss_limit_check.py (44 of 44), tests/exit_order_check.py, tests/fatal_exit_check.py, pass_cc_check.py --wall on rtss_limit.c, tools/check_content.py --staged. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
535 lines
47 KiB
C
535 lines
47 KiB
C
// Interface of the host runtime: guest memory, modules, kernel, IPC, file system and boot.
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//
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// Guest addresses are host addresses. Every guest-visible region lies below 2^39 (IPC buffer descriptors carry 39
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// address bits). Fixed parts of the guest address map:
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// modules MOD_<X>_BASE from layout.h, from 0x70_0000_0000
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// kernel region RT_KERNEL_BASE, 256 MiB: TLR, TLS blocks, host objects the guest reads (mem_kernel_alloc)
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// host functions RT_HOSTFN_BASE, 1 MiB, never accessible: synthetic addresses of host functions
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// The stack, heap and alias regions are placed at start-up (mem_layout).
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#pragma once
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <string.h>
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#include "cpu.h"
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#include "dispatch.h"
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// ---- logging and results
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void rt_log(const char *fmt, ...) __attribute__((format(printf, 1, 2))); // "[host] <msg>\n" to the log, one write
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// The log is stderr plus, in a game run whose stderr is not a file, logs\nx2navi.log next to nx2navi.exe (main.c log_open).
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// rt_logf and rt_log_raw write to both without the prefix and the newline: crash reports, fatal errors, guest output.
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void rt_logf(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
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void rt_vlogf(const char *fmt, va_list ap);
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void rt_log_raw(const char *p, size_t n);
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const char *rt_log_path(void); // the log file, NULL when this run writes none
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void rt_log_sync(void); // writes the queued log lines now; later lines are written as they are made
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void rt_log_ending(void); // the process is ending: its lines reach the log file past its 64 MiB cap
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void rt_log_focus_lost(void); // main.c: the gathered lines written now, the module list noted again
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void hang_watch_start(void); // hang_watch.c: NX2NAVI_HANG_WATCH_S's thread, in a game run
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void kern_wait_report(void); // kernel.c: the guest threads' lock and thread-end waits, for a hang report
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void vk_sync_progress(uint64_t *issued, uint64_t *done); // vk_sync.c: submissions issued and done, no lock or device call
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enum { RT_TRACE_SVC = 1, RT_TRACE_HOSTCALL = 2, RT_TRACE_IPC = 4, RT_TRACE_FS = 8, RT_TRACE_GFX = 16, RT_TRACE_PERF = 32,
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RT_TRACE_SCHED = 64, RT_TRACE_AUDIO = 128, RT_TRACE_PRESENT = 256 };
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extern unsigned rt_trace; // from NX2NAVI_TRACE=svc,host,ipc,fs,gfx,perf,sched,audio,present (or all)
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// prof_win.c: NX2NAVI_PROFILE=<path> sampling profiler; NX2NAVI_TRACE=perf frame timing (waits of the render thread)
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// PERF_TEX: texture uploads on the render thread (deswizzle, decode, staging), PERF_ASTC included. PERF_HANDOFF: the
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// presenting thread's wait for the present thread to take the previous picture (vk_backend.c present_image), which is
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// where the present thread's own pacing and a slow present call (an overlay's frame limiter inside it) hold the game.
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enum { PERF_PACE, PERF_FENCE, PERF_DRAIN, PERF_PIPE, PERF_XLATE, PERF_TEX, PERF_ASTC, PERF_HANDOFF, PERF_N };
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void prof_start(void);
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void prof_write(void); // idempotent; boot.c calls it before _exit
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uint64_t perf_begin(void); // start time of a wait; pair with perf_end
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void perf_end(int kind, uint64_t t0); // counts render-thread time only
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// The same for a wait that may run on any guest thread (the game's image acquire): the render and replay threads' as
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// perf_end, any other thread's added to the next present's frame (perf_present).
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void perf_end_any(int kind, uint64_t t0);
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void perf_replay(uint64_t t0); // replay (NVN -> Vulkan recording) time on any thread, waits inside it included
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void perf_replay_thread(void); // the calling thread replays for the render thread: perf_end counts its waits
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void perf_main_thread(void); // the calling thread is the guest main thread (NX2NAVI_PROFILE_MAIN)
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// Events per 60-frame window: graphics pipelines finished by the background workers, draws skipped while pending,
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// first texture uploads and re-uploads after CPU writes, draws skipped while a shader translates in the background,
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// draws that waited for their pending pipeline and got it, draws into a target the previous frame did not render that
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// waited for their pending shader or pipeline instead of being skipped (vk_exec_draw.c prepare_draw). The rest feed only
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// the flight recorder (flight.c): graphics pipelines created on any thread, texture images created, images created at an
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// address where a live image of another descriptor already starts, write-backs done and skipped because the CPU
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// rewrote the storage after the GPU render (vk_texture.c vk_texture_write_back).
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enum { PERF_CNT_PIPE_ASYNC, PERF_CNT_PIPE_SKIP, PERF_CNT_TEX_UP, PERF_CNT_TEX_REUP, PERF_CNT_SHADER_SKIP,
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PERF_CNT_PIPE_WAIT, PERF_CNT_ONESHOT_WAIT, PERF_CNT_PIPE_BUILT, PERF_CNT_TEX_NEW, PERF_CNT_TEX_ALIAS,
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PERF_CNT_WB, PERF_CNT_WB_SKIP, PERF_CNT_N };
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void perf_count(int kind);
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// NX2NAVI_TRACE=perf: work on any thread that a frame can wait for besides the render thread's waits above, summed per
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// frame and per 60-frame window (perf.c perf_mark_add): RomFS reads, host zstd decodes, pipeline creates (vk_pipeline.c
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// pipe_create_in), guest memory maps (heap size, MapPhysicalMemory), NVN memory pool initialize and finalize
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// (vk_memory.c vk_pool_init, vk_pool_fini), device memory VMA allocates (blocks and dedicated memory, vk_device.c
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// timed_alloc), and DLSS and DLSS frame generation feature creates (vk_dlaa.c). perf_mark_begin returns 0 while the trace is off, so a normal run pays one branch per site.
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enum { PERF_M_FILE, PERF_M_ZSTD, PERF_M_PIPE, PERF_M_GMEM, PERF_M_POOL, PERF_M_DEVMEM, PERF_M_NGX, PERF_M_N };
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uint64_t perf_mark_begin(void);
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void perf_mark_end(int kind, uint64_t t0, uint64_t bytes); // nothing when t0 is 0
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void perf_mark_add(int kind, uint64_t ns, uint64_t bytes); // nothing while the trace is off
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// NX2NAVI_TRACE=perf segments and scenes (perf.c): perf_segment ends the running segment of presents at the next present
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// with a line of its frame times (mean, 1% low, worst), the work marks above, process memory and VRAM, then the memory
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// snapshot, and starts one named name (the input script's MARK lines, input.c). perf_scene notes an area's load
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// (romfs.c, the area's static placement file) and takes the memory snapshot once no area has loaded for 10 s.
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void perf_segment(const char *name);
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void perf_scene(const char *name);
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uint64_t perf_area_load_ns(void); // plat_now_ns of the last perf_scene (any trace setting), 0 before the first
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// NX2NAVI_TRACE=perf "mem: sizes" lines (perf.c sizes_log): the entries and bytes of the caches, pools and tables no
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// other line gives, every 600 presents and with each memory snapshot. Each subsystem's *_sizes function (weak no-ops
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// in perf.c) adds its own with perf_size, taking its locks briefly on the present thread. count or bytes UINT64_MAX:
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// not known; limit 0: none.
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typedef struct { char line[1800]; int n; uint64_t frame; const char *group; } PerfSizes;
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void perf_size(PerfSizes *s, const char *name, uint64_t count, uint64_t limit, uint64_t bytes);
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#define PERF_SIZE_NONE UINT64_MAX
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void mem_sizes(PerfSizes *s); // memory.c
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void kern_sizes(PerfSizes *s); // kernel.c
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void setjmp_sizes(PerfSizes *s); // guest_setjmp.c
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void fs_host_sizes(PerfSizes *s); // fs_host.c
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void romfs_sizes(PerfSizes *s); // romfs.c
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void zstd_sizes(PerfSizes *s); // ov_zstd.c
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void cfg_sizes(PerfSizes *s); // cfg.c
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void vk_mem_sizes(PerfSizes *s); // vk_memory.c
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void vk_gpa_sizes(PerfSizes *s); // vk_gpa.c
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void vk_texture_sizes(PerfSizes *s); // vk_texture.c
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void vk_exec_sizes(PerfSizes *s); // vk_exec_draw.c
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void vk_sync_sizes(PerfSizes *s); // vk_sync.c
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void vk_usnap_sizes(PerfSizes *s); // vk_usnap.c
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void nvn_cmd_sizes(PerfSizes *s); // nvn_api_cmd.c
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void vk_pipeline_sizes(PerfSizes *s); // vk_pipeline.c
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void gfx_shader_sizes(PerfSizes *s); // gfx_shader.c
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// NX2NAVI_REPLAY_TIME=1: how long the replay spends in each kind of op (perf.c perf_replay_op reports it with the
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// frame-time summary). Draws and dispatches include their bindings and the vkCmd calls they record; binds are the state
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// and resource binds between them; xfer is copies and clears.
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enum { PERF_RP_DRAW, PERF_RP_BIND, PERF_RP_XFER, PERF_RP_OTHER, PERF_RP_N };
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void perf_replay_op(int cat, uint64_t ns);
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void perf_replay_op_at(int cat, uint32_t op, uint64_t ns);
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void perf_replay_cpu(uint64_t ns); // the replaying thread's CPU time over one submission's replay (vk_sync.c) // as perf_replay_op, also kept per frame for slow frames
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void perf_lock_timing_here(void);
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int perf_lock_holds_on(void); // NX2NAVI_LOCK_TIME
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void perf_lock_hold(void *site, uint64_t ns); // a lock held ns from site (vk_texture.c, holds over 1 ms) // NX2NAVI_LOCK_TIME: this thread's lock waits go into the frame-time summary
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void perf_qlock_hold(void *site, uint64_t ns); // the queue lock held ns from site (gfx_present.c, 5 ms or more)
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extern void (*perf_rec_waits)(uint64_t *full_ns, uint64_t *drain_ns); // set by the back end (vk_rec.c totals)
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void perf_present(uint64_t frame);
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void perf_cpu_start(void); // the process's logical processors (NX2NAVI_CACHE_DIE, NX2NAVI_ONE_PER_CORE), at start
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int perf_cpu_on_cache_die(void); // 1 while the process runs on the die with the largest L3 cache alone (perf.c cpu_placement)
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void perf_summary_flush(void); // prints the frame-time summary of the running period (exit); the 60 s lines come from perf_present
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void perf_summary_flush_try(void); // the same at a fatal error, the stutter map only if its lock is free
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void perf_focus_lost(void); // the window lost the focus: the session's reports at the next present, in play
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void gfx_exit_log(void); // back end's lines for the exit summary (weak no-op in prof_win.c)
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// gfx_present.c (gfx_wsys.h): the end of a closed window. It does not return, but for its own thread coming back
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// (gfx_present.c rt_exit_begin)
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void gfx_window_closed(void);
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// gfx_present.c: the orderly end every exit the game asks for shares (the window's close, svc.c ExitProcess, boot.c
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// --seconds). rt_exit_begin: 1 for the first caller; another thread waits there for good; 0 for that caller's own
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// thread again. rt_exit_steps: the saves and the put-backs, the slow pipeline save late and the final save flush last.
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int rt_exit_begin(void);
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int rt_exit_started(void); // an orderly end has begun (the hang watch stops judging presents)
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enum { RT_EXIT_SETTINGS = 1 }; // rt_exit_steps also writes the menu's changes to nx2navi.ini
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void rt_exit_steps(unsigned what);
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void perf_gpu_wait(uint64_t t0); // a wait for a GPU fence ended (any thread; the render thread's also counts as PERF_FENCE)
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// GPU side of the 60-frame perf line, filled by the graphics back end when it set perf_gpu_stats. gpu_ns: GPU busy time
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// since the previous call (timestamp queries, overlaps counted once), have_gpu 0 when the device has no timestamps.
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typedef struct {
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int have_gpu, have_vram, vram_exact;
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uint64_t gpu_ns, gpu_parts, gpu_missed; // busy time, submission parts timed, parts left untimed
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uint64_t vram_used, vram_budget;
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int have_idle; // calibrated timestamps: the idle split below is filled
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uint64_t idle_ns, starved_ns, queued_ns; // GPU idle between timed parts; of it, before the part was submitted; submit to start
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uint64_t idle_gaps, max_gap_ns; // gaps over 0.5 ms; the longest
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uint64_t mirror_ns; // of gpu_ns, the copies into VRAM mirrors (vk_sync.c ts_submitted)
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} PerfGpu;
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extern void (*perf_gpu_stats)(PerfGpu *out);
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// The write-combined memory of the process (device memory the driver maps into it) as a walk of the address space
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// counted it, with the driver's device-local figure at that time (NX2NAVI_MEM_CENSUS: vk_memory.c census_main, perf.c's
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// commit census). perf_wc_recent: the last such figure when it is at most max_age_ns old, else 0.
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void perf_note_wc(uint64_t wc, uint64_t vram_used);
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int perf_wc_recent(uint64_t max_age_ns, uint64_t *wc, uint64_t *vram_used);
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// The frame-time summary's "census" and "report" parts (perf.c ft_frame). perf_census_walk(1) and (0) bracket a walk of
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// the address space on another thread (vk_memory.c census_main): a frame that overlapped it has that much moved to
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// "census". perf_report_part adds the time the memory report took on the presenting thread (vk_memory.c
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// vk_mem_census), any thread, to the next present's "report". perf_census_walked_frame: the frame whose present walked
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// the address space itself (perf.c census_check), UINT64_MAX before any, so a report of that frame skips its own walk.
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void perf_census_walk(int begin);
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void perf_report_part(uint64_t ns);
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uint64_t perf_census_walked_frame(void);
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// The performance overlay (perfmon.c): mode 0 off, 1 fps, 2 full. While it is on, perf_present hands every frame to
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// perfmon_frame; full also takes the event counts (perf_count) and the GPU timestamps as NX2NAVI_TRACE=perf does.
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void perf_set_overlay(int mode);
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int perf_gpu_timing(void); // GPU timestamps wanted: NX2NAVI_TRACE=perf, the full overlay, or a
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// feature that asked (perf_gpu_timing_want)
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void perf_gpu_timing_want(int on); // dynres.c: GPU timestamps while dynamic resolution runs
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void perf_gpu_busy(uint64_t ns); // GPU busy time of a timed submission part (vk_sync.c, any thread)
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uint64_t perf_gpu_busy_total(void); // its running total (the overlay's GPU time per frame)
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#define RT_RESULT(module, desc) ((uint32_t)(module) | ((uint32_t)(desc) << 9))
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void rt_sha256(const void *p, size_t n, uint8_t out[32]); // BCrypt; fatal if the provider fails
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// ---- guest address map (fixed part)
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#define RT_ADDRESS_LIMIT (1ull << 39)
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#define RT_KERNEL_BASE 0x7010000000ull
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#define RT_KERNEL_SIZE 0x10000000ull
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#define RT_HOSTFN_BASE 0x7020000000ull
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#define RT_HOSTFN_SIZE 0x100000ull
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// ---- AAPCS64 argument access for host functions (section 2.2)
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static inline uint64_t arg_x(const Cpu *c, int i) { return i < 8 ? c->x[i] : LD64(c->sp + 8 * (uint64_t)(i - 8)); }
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static inline void *arg_p(const Cpu *c, int i) { return (void *)(uintptr_t)arg_x(c, i); }
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static inline float arg_s(const Cpu *c, int i) { uint32_t b = (uint32_t)c->v[i]; float f; memcpy(&f, &b, 4); return f; }
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static inline double arg_d(const Cpu *c, int i) { uint64_t b = (uint64_t)c->v[i]; double d; memcpy(&d, &b, 8); return d; }
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static inline void ret_x(Cpu *c, uint64_t v) { c->x[0] = v; }
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static inline void ret_s(Cpu *c, float f) { uint32_t b; memcpy(&b, &f, 4); c->v[0] = b; }
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static inline void ret_d(Cpu *c, double d) { uint64_t b; memcpy(&b, &d, 8); c->v[0] = b; }
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// ---- host functions (hostfn.c)
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// Every host function is a GuestFn at a synthetic address RT_HOSTFN_BASE + 16*i. It runs on the calling guest thread,
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// may clobber x0-x18, v0-v7, v16-v31, must preserve x19-x29, sp, v8-v15, tpidr, and returns to the guest BL site with
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// a C return. On entry c->pc holds the function's own synthetic address.
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typedef struct { const char *name; GuestFn fn; } RtHostEntry;
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#define RT_CAT2(a, b) a##b
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#define RT_CAT(a, b) RT_CAT2(a, b)
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// File-scope declarations; fn must be declared before. The loader binds them by symbol name. The entries of every
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// object file meet in one section per kind, which hostfn.c walks: on PE/COFF ".ovr$m", which the linker sorts between
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// hostfn.c's ".ovr$a" and ".ovr$z" markers; on ELF "nx2navi_ovr", which the linker brackets with __start_nx2navi_ovr and
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// __stop_nx2navi_ovr.
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#ifdef _WIN32
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#define RT_HOST_SECTION(kind) section("." #kind "$m")
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#else
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#define RT_HOST_SECTION(kind) section("nx2navi_" #kind)
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#endif
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#define HOST_OVERRIDE(sym, fn) /* replaces sym in every GOT/GLOB_DAT/ABS64 of every module */ \
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__attribute__((used, RT_HOST_SECTION(ovr))) static const RtHostEntry RT_CAT(rt_ovr_, __COUNTER__) = {sym, fn}
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#define HOST_OBSERVER(sym, fn) /* JUMP_SLOT only; fn calls rt_original(c) */ \
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__attribute__((used, RT_HOST_SECTION(obs))) static const RtHostEntry RT_CAT(rt_obs_, __COUNTER__) = {sym, fn}
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uint64_t hostfn_register(const char *name, GuestFn fn); // synthetic address; before hostfn_seal only. The same
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// (name, fn) pair returns the same address
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GuestFn hostfn_override(const char *name); // NULL if none
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GuestFn hostfn_observer(const char *name); // NULL if none
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void hostfn_add_override(const char *name, GuestFn fn); // an override outside the linker table (probes); before
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// ldr_load
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const char *hostfn_name(uint64_t addr); // name registered at a synthetic address, NULL if none
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void hostfn_seal(void); // build the dispatch table (rt_dispatch_init over every
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// linked module); idempotent; registration ends here
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uint64_t hostfn_calls(void); // host-function calls so far, all threads
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void hostfn_report(void); // call count per host function to stderr, busiest first
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int hostfn_table_size(int observers); // linked HOST_OVERRIDE (0) / HOST_OBSERVER (1) entries
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const char *hostfn_table_name(int observers, int i); // symbol of linked entry i, NULL past the end
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uint64_t rt_original(Cpu *c); // inside an observer: call the guest definition with the
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// current x0..x7, return x0. Uses c->pc, so call it before
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// anything that changes c->pc (rt_call restores it)
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uint64_t rt_call(Cpu *c, uint64_t fn, int n, ...); // host -> guest, section 2.3. n <= 8 arguments, each read
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// as uint64_t: cast every argument. Seals the dispatch
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// table on first use. Sets x30 = RT_RET_HOST, restores
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// x30 and pc, returns x0. Does not touch sp
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#define RT_RET_HOST 0x70200ff000ull // x30 sentinel inside the host-function window; a jump to
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// it is a named fatal
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// ---- guest memory (memory.c)
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typedef struct { uint64_t base, size; } RtRange;
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typedef struct { RtRange aslr, stack, heap, alias, kernel, hostfn; uint64_t pool; } RtGuestLayout;
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typedef struct { uint64_t base, size; uint32_t state, attr, perm, ipc, device, pad; } RtMemoryInfo; // Horizon layout
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void mem_init(void); // reserve every region; on a collision re-run the process
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// (up to 20 times, NX2NAVI_REEXEC), then fatal
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const RtGuestLayout *mem_layout(void);
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int mem_start_note(int probe); // a game's start: a warning line when the free commit is
|
|
// below the game's need (mem_need.h); 1 when it is
|
|
void mem_guest_census(uint64_t frame); // NX2NAVI_TRACE=perf: committed bytes per guest region
|
|
// The guest's ranges for a census, each with its name (the loaded modules one range each, all named "modules"), at most
|
|
// max; mem_guest_census_log logs the bytes a walk found committed in each (committed[i] for range i).
|
|
int mem_guest_ranges(const char **name, RtRange *r, int max);
|
|
void mem_guest_census_log(uint64_t frame, const char *const *name, const uint64_t *committed, int n);
|
|
void mem_lazy_heap_census(uint64_t frame); // the census's lazy heap line (NX2NAVI_HEAP_LAZY only)
|
|
void mem_lazy_heap_report(uint64_t frame); // NX2NAVI_TRACE=perf: the lazy heap's faults since the last line
|
|
// The game's own memory for the memory report (vk_memory.c owner_log): its heap's size, the part of it committed (the
|
|
// size itself unless the heap is lazy), and the physical memory it mapped. No lock: a log may read a figure late.
|
|
void mem_guest_usage(uint64_t *heap, uint64_t *heap_committed, uint64_t *phys_maps);
|
|
uint32_t mem_set_heap_size(uint64_t size, uint64_t *addr); // 0x01
|
|
uint32_t mem_set_permission(uint64_t a, uint64_t n, uint32_t perm); // 0x02
|
|
uint32_t mem_set_attribute(uint64_t a, uint64_t n, uint32_t mask, uint32_t at); // 0x03
|
|
uint32_t mem_map(uint64_t dst, uint64_t src, uint64_t n); // 0x04
|
|
uint32_t mem_unmap(uint64_t dst, uint64_t src, uint64_t n); // 0x05
|
|
uint32_t mem_query(uint64_t a, RtMemoryInfo *out); // 0x06
|
|
int mem_readable(uint64_t a, uint64_t n); // every page readable
|
|
uint32_t mem_map_gen(void); // changes with everything mem_readable answers from (mapping, heap, permissions)
|
|
int mem_read_hold(uint64_t a, uint64_t n); // mem_readable that keeps the range mapped until mem_read_release
|
|
void mem_read_release(void);
|
|
uint32_t mem_map_physical(uint64_t a, uint64_t n); // 0x2C
|
|
uint32_t mem_unmap_physical(uint64_t a, uint64_t n); // 0x2D
|
|
int mem_info(uint32_t id, uint64_t *out); // GetInfo memory ids 2-7, 12-17, 21, 22, 28; 0 if not a memory id
|
|
void *mem_kernel_alloc(uint64_t size, uint64_t align); // zeroed, guest-visible, in the kernel region; align <= 64 KiB
|
|
uint64_t mem_written_pages(uint64_t addr, uint64_t size, uint64_t *pages, uint64_t max);
|
|
// GetWriteWatch(RESET): fills pages[] (4 KiB addresses)
|
|
// with the pages of [addr, addr+size) written since the
|
|
// last call, returns their count (at most max; a page
|
|
// past max stays reported next time). The range must lie
|
|
// inside the stack/heap block or the alias region
|
|
// (write watch); otherwise returns UINT64_MAX
|
|
uint64_t mem_written_peek(uint64_t addr, uint64_t size, uint64_t *pages, uint64_t max);
|
|
// the same without the reset: the bits stay for the next
|
|
// mem_written_pages (verify checks only)
|
|
int mem_watched(uint64_t addr, uint64_t size); // [addr, addr+size) lies inside one of those two ranges, so
|
|
// one mem_written_pages call can answer for all of it
|
|
int mem_freeze(uint64_t a); // makes the 2 MiB region at a (2 MiB aligned, watched,
|
|
// committed PAGE_READWRITE) read-only until a write or
|
|
// mem_thaw thaws it; 1 frozen (or already), 0 refused
|
|
int mem_frozen(uint64_t a); // the 2 MiB region of a is frozen: no page in it changed
|
|
// since its freeze
|
|
void mem_thaw(uint64_t a, uint64_t n); // makes the frozen regions over [a, a+n) writable again;
|
|
// before a kernel write (file read) into guest memory;
|
|
// also commits pages the lazy heap left reserved
|
|
void mem_kernel_access(uint64_t a, uint64_t n); // NX2NAVI_HEAP_LAZY: commits the reserved heap pages of
|
|
// [a, a+n) before the kernel reads them (a file write)
|
|
uint64_t mem_untouched_run(uint64_t a, uint64_t end); // NX2NAVI_HEAP_LAZY: the end of the run of heap pages at a
|
|
// that were never committed (a scan steps over it), else 0
|
|
int mem_host_readable(uint64_t a, uint64_t n); // plat_mem_readable that first commits the untouched
|
|
// pages of the lazy heap in [a, a+n), which read zero
|
|
void mem_freeze_stats(uint64_t *frozen, uint64_t *freezes, uint64_t *fault_thaws, uint64_t *other_thaws,
|
|
uint64_t *hot_holds); // hot_holds: quick thaws that held their region thawed (memory.c "Hot regions")
|
|
// NX2NAVI_WB_PROBE=1 (memory.c, "Probed regions"): who reads what the GPU wrote back into guest memory.
|
|
// NX2NAVI_WB_LAZY (memory.c, "Lazy write-back"): pages the GPU wrote that come down only when the CPU touches them.
|
|
int mem_lazy_enable(void (*fetch)(uint64_t h0, uint64_t h1, uint64_t off, uint64_t size),
|
|
int (*clean)(uint64_t lo, uint64_t hi, void *ctx));
|
|
uint64_t mem_lazy_arm(uint64_t a, uint64_t n, uint64_t h0, uint64_t h1, uint64_t off, void *ctx);
|
|
int mem_lazy_skip(uint64_t a, uint64_t n, uint64_t h0, int64_t delta, uint64_t out[][2], int max);
|
|
int mem_lazy_armed(uint64_t a, uint64_t n);
|
|
// Copies the ranges src[i] = {address, bytes} of guest memory whose pages read without a fault to dst[i], ok[i] set.
|
|
int mem_copy_readable(uint8_t *const *dst, const uint64_t (*src)[2], int n, uint8_t *ok);
|
|
int mem_lazy_touches(uint64_t a, uint64_t n); // 0: the CPU can read [a, a + n) without a fault now
|
|
void mem_lazy_window(int open);
|
|
void mem_lazy_release(uint64_t a, uint64_t n);
|
|
void mem_lazy_report(uint64_t frame, uint64_t skipped);
|
|
void mem_lazy_note(char *out, size_t n); // its state as a phrase, without a lock (a fatal error's line)
|
|
int mem_lazy_pick(uint64_t *addr, int max); // test: addresses of armed pages
|
|
int mem_probe(uint64_t a, uint64_t n); // the 2 MiB regions inside [a, a+n) fault on their next access
|
|
int mem_probing(void); // the probe is on
|
|
void mem_probe_report(uint64_t frame); // logs the accesses since the last report
|
|
// regions frozen now; freezes and thaws since the last call
|
|
void mem_kernel_free(void *p, uint64_t size); // TLR/TLS reuse after thread exit
|
|
|
|
// ---- modules (loader.c)
|
|
typedef struct {
|
|
const char *name; uint64_t base, size, text_end, data_off; // text_end, data_off: offsets from base
|
|
uint64_t init, init_array, init_array_size, ctor_flag; // absolute guest addresses; init_array_size in bytes
|
|
} RtLoaded;
|
|
void ldr_load(const char *exefs_dir); // load, relocate (overrides applied), seal; once
|
|
int ldr_count(void);
|
|
const RtLoaded *ldr_module(int i); // order: main, subsdk0, sdk
|
|
uint64_t ldr_symbol(const char *name); // exported definition, 0 if none
|
|
uint64_t ldr_plt_stub(const char *module, const char *name); // PLT stub whose GOT slot holds name, 0 if none
|
|
const char *ldr_describe(uint64_t a, char *buf, int n); // "main+0x1234 (symbol+0x10)", "host <name>", or the address
|
|
uint8_t *ldr_read_verified(const char *dir, const char *file, size_t *len); // whole file, SHA-256 checked against
|
|
// modules.c (fatal on mismatch); free() it
|
|
|
|
// Written by tools/build_game.py into build/<version>/modules.c.
|
|
typedef struct { const char *file, *sha256; } RtFileHash;
|
|
extern const RtFileHash rt_exefs_sha256[]; // tools/data/expected-<version>.json "exefs_sha256"
|
|
extern const int rt_exefs_sha256_count;
|
|
extern const char rt_default_exefs[], rt_default_romfs[], rt_default_profile[];
|
|
extern const unsigned long long rt_app_pool_bytes; // the title's application memory pool (GetInfo 6)
|
|
extern const int rt_nvn_api_version[2]; // NVN_DEVICE_INFO_API_{MAJOR,MINOR}_VERSION the title requires
|
|
extern const int rt_game_version; // the game build: 111 (1.1.1, make_game.py), 110 (1.1.0), 121 (1.2.1) or 143 (1.4.3)
|
|
extern const char rt_port_version[]; // VERSION at the build's root: 0.1.0, 0.1.0+973c626 in a release
|
|
#define RT_V110 (rt_game_version == 110) // 1.1.0: its own boot constants and data slots
|
|
#define RT_V111 (rt_game_version == 111) // 1.1.1: its own boot constants (boot.c)
|
|
#define RT_V143 (rt_game_version >= 143)
|
|
|
|
// ---- kernel (kernel.c)
|
|
typedef struct RtThread RtThread;
|
|
Cpu *kern_cpu(void); // current guest thread's Cpu, NULL on host threads
|
|
void fs_save_crash_wait(void); // fs_host.c: the crash report's and rt_fatal's bounded wait for a save Commit under way
|
|
void kern_free_cores_note(void); // for crash reports: logs that free_cores = 1 lifted the
|
|
// virtual core gate, nothing when the gate is on
|
|
uint32_t kern_main_thread(Cpu **cpu); // main thread object and Cpu for the calling host thread
|
|
// (main.npdm: 1 MiB stack at the top of the stack region,
|
|
// priority 44, core 0); on the main thread: its handle
|
|
void kern_main_stack(uint64_t *base, uint64_t *size); // the main thread's stack, size 0 before kern_main_thread;
|
|
// svc.c reports it to QueryMemory, memory.c does not know it
|
|
void kern_run_on_guest_main(void (*fn)(Cpu *c)); // start the guest main host thread, run fn there, join
|
|
int kern_core_away(void); // give the virtual core up around a blocking host wait
|
|
void kern_core_back(int *away);
|
|
void kern_checkpoint(void); // preemption point, at every SVC and indirect call
|
|
// A preempt request is pending for the thread (Cpu.thread): its RtThread starts with the flag (kernel.c).
|
|
static inline int kern_preempt_pending(const void *thread) { return __atomic_load_n((const int *)thread, __ATOMIC_RELAXED); }
|
|
// Set once before guest threads start (NX2NAVI_CORE_DIAG, NX2NAVI_ASYNC_PREEMPT): host calls (hostfn.c) and SVCs (svc.c) count their depth in
|
|
// the thread's second int, so the kernel knows whether a core owner runs game code at the top level.
|
|
extern int kern_host_track;
|
|
static inline int *kern_host_depth(void *thread) { return (int *)thread + 1; }
|
|
void kern_host_left(void *thread); // back at depth 0 with a preempt request pending
|
|
int kern_core_diag_on(void); // NX2NAVI_CORE_DIAG
|
|
void kern_core_diag_frame(uint64_t frame, uint64_t interval_ns); // perf_present, every present (also logs the
|
|
// asynchronous preemption counters)
|
|
void kern_sched_report(uint64_t frame); // NX2NAVI_TRACE=sched: per-thread time split, on present
|
|
uint32_t kern_handle_new(int kind, void *obj); // kind: KERN_SESSION or KERN_TMEM (ipc.c)
|
|
void *kern_handle_get(uint32_t h, int kind);
|
|
void *kern_handle_hold(uint32_t h, int kind, void (*hold)(void *obj)); // kern_handle_get, hold(obj) run under the
|
|
// kernel lock (a reference the caller drops)
|
|
int kern_handle_copy(uint32_t h, int kind, void *out, size_t n); // a copy of the object, made under the
|
|
// kernel lock; 0 for a bad handle
|
|
void kern_handle_close(uint32_t h); // CloseHandle from the host side, any thread; fatal on a
|
|
// bad handle
|
|
enum { KERN_SESSION = 4, KERN_TMEM = 5 };
|
|
uint32_t kern_event_new(void); // writable handle
|
|
uint32_t kern_event_readable(uint32_t writable);
|
|
void kern_event_signal(uint32_t writable);
|
|
void kern_event_clear(uint32_t writable); // server-side clear (e.g. a drained message queue)
|
|
void kern_bind_system_event(Cpu *c, uint64_t ev, int autoclear); // guest thread only
|
|
void kern_signal_system_event(uint64_t ev); // any thread
|
|
void kern_clear_system_event(uint64_t ev); // any thread; a bound, live event only
|
|
void kern_unbind_system_event(Cpu *c, uint64_t ev); // before freeing a host-memory event nothing signals now;
|
|
// destroys it on a guest thread (c set)
|
|
int kern_system_event_live(uint64_t ev); // in mapped guest memory, its state byte nonzero
|
|
int kern_svc(Cpu *c, uint32_t imm); // thread/sync SVCs; 1 if handled
|
|
uint64_t kern_now_ns(void);
|
|
extern uint64_t rt_guest_start_ns; // kern_now_ns when the guest started (boot.c), 0 before
|
|
typedef struct { uint64_t svcs, threads, host_calls; } RtStats;
|
|
RtStats rt_stats(void); // host_calls: hostfn_calls()
|
|
|
|
// ---- IPC (ipc.c)
|
|
int ipc_svc(Cpu *c, uint32_t imm); // 0x15, 0x1F, 0x21, 0x22; 1 if handled
|
|
void ipc_handle_closed(int kind, void *obj); // CloseHandle on a KERN_SESSION/KERN_TMEM handle
|
|
|
|
// ---- file system (romfs.c / fs_host.c)
|
|
void fs_init(void); // idempotent; paths from rt_config()
|
|
|
|
// ---- account (ov_system.c)
|
|
void account_uid(uint64_t out[2]); // the local user's nn::account::Uid {lo, hi}, persistent in
|
|
// <profile>/account.uid; fs_host.c names save data after it
|
|
|
|
// ---- movies (ov_movie.c)
|
|
void movie_tick(Cpu *c); // at every present, on the presenting guest thread: hands
|
|
// decoded movie frames over when due, signals their events
|
|
// ---- camera speed (camera_speed.c): NX2NAVI_STICK_SENS
|
|
float cam_speed_wanted(void); // the factor NX2NAVI_STICK_SENS asks for, 0.1 to 3
|
|
float cam_speed_applied(void); // the factor in effect: 1 until romfs.c serves the pack
|
|
int cam_pack_build(const void *in, size_t n, const void *zsdic, size_t zsdic_n, void **out, size_t *out_n);
|
|
// Pack/Actor/PlayerCamera.pack.zs with the camera speeds
|
|
// multiplied, malloc'd; 0 = factor 1 or cannot (logged)
|
|
void cam_pack_opened(void); // romfs.c: the game opened the camera's pack
|
|
void cam_speed_tick(void); // every present: a changed setting goes into the game's memory
|
|
void cam_pack_served(void); // romfs.c serves the multiplied pack
|
|
// ---- game resolution (resolution.c): NX2NAVI_OUTPUT_RES, NX2NAVI_RENDER_SCALE
|
|
uint64_t res_heap_extra_bytes(void); // added to the application pool (mem_init), 2 MiB steps
|
|
uint64_t res_heap_extra_kib(void); // added to the HeapDef texture heap and its parent; 0 = none
|
|
int res_heapdef_build(const void *in, size_t n, void **out, size_t *out_n); // the HeapDef table (.byml.zs) with
|
|
// the grown heaps, malloc'd; 0 = cannot (logged)
|
|
void res_heapdef_served(void); // romfs.c serves the grown table
|
|
int res_heapdef_ok(void); // 1 once it does; 0 after fs_init: the game has the shipped heaps
|
|
void wide_init(void);
|
|
void wide_present(void); // each present: DLSS's render scale (res_fixed) // after rt_patches_init: widescreen.c, NX2NAVI_GAME_ASPECT
|
|
int wide_available(void); // the generated C has the widescreen sets
|
|
void wide_picture(unsigned *w, unsigned *h); // the picture the game draws (its scene is never larger)
|
|
int wide_scene_settable(void); // the generated C has res_fixed: the scene's share can be set
|
|
double wide_scene_share(void); // the scene's share of the picture now (0: the game's own)
|
|
double wide_scene_wanted(void); // ... what the settings ask for, before the heap's limit
|
|
int wide_scene_restart(void); // a restart gives the larger scene the settings ask for
|
|
uint64_t wide_heap_extra_kib(void); // the texture heap's growth for the widescreen picture
|
|
// The most res_heap_extra_kib may be (memory.c): with more the application pool passes the heap region and the
|
|
// game's own SetHeapSize is refused. A whole number of 2 MiB.
|
|
uint64_t mem_heap_extra_max_kib(void);
|
|
void res_init(void); // after rt_patches_init: the patch page and the sets
|
|
float res_dlss_lod_bias(void); // NX2NAVI_DLSS upscaling: texture LOD bias (<= 0)
|
|
int res_dlss_mode(const char *mode); // NX2NAVI_DLSS changed while running: new scene size
|
|
void dynres_frame(void); // dynamic resolution: one presented frame (vk_backend.c)
|
|
const char *dynres_override(void); // the DLSS mode dynamic resolution uses now, NULL: the setting's
|
|
void res_fn_hit(uint64_t addr, uint64_t x0); // main.c fnprof_hit: catches the renderer at start
|
|
void res_present(Cpu *c); // nvnQueuePresentTexture: applies a pending scene size
|
|
void res_sizes(unsigned out[2], unsigned scene[2]); // the output and scene sizes in effect (the game's own
|
|
// until res_init switched the sets on)
|
|
int res_adjustable(void); // the build has the output and scene patch sets
|
|
int res_is_16x9(unsigned w, unsigned h); // within 1% of 16:9 (the test res_init and romfs.c share)
|
|
int res_wants_wide_overlay(const unsigned out[2]); // not 16:9 on a game version with the camera aspect patch
|
|
void res_wanted(unsigned out[2]); // the output size NX2NAVI_OUTPUT_RES asks for
|
|
void res_fov_live(void); // NX2NAVI_FOV to the camera (set fov); on a settings change
|
|
// ---- code patches (patches.c) and the frame step (frame_rate.c)
|
|
void rt_patches_init(void); // after ldr_load: switches from the environment, the patch
|
|
// page committed; logs the sets
|
|
int rt_patch_set(const char *name); // index of a set of generated patches.h, -1 if absent
|
|
int rt_patch_enabled(int set); // the set is on (0 for -1)
|
|
void rt_patch_disable(int set); // before the guest starts: a set needs another that is off
|
|
void rt_patch_switch(int set, int on); // at run time (live settings): each site takes the new code
|
|
// the next time it runs
|
|
void *rt_patch_page(void); // the page the patched code reads (NULL without the table)
|
|
void frame_step_init(void); // after rt_patches_init: the real-time step's first value
|
|
int frame_step_realtime(void); // the real-time step is on: presents ignore the interval
|
|
uint64_t frame_step_cap_ns(void); // with the real-time step: the shortest frame in ns
|
|
int frame_step_movie_hz(void); // the movie rate frame_step_cap_ns paces at; 0: no movie
|
|
int ov_movie_live(void); // ov_movie2.c: a movie plays (frame_rate.c movie_cap_hz)
|
|
int frame_limit_adjustable(void); // the frame limit setting changes the rate (always)
|
|
int frame_free_running(void); // no fps60/realtime patch set: the game steps by the clock
|
|
double frame_step_limit_hz(void); // the frame rate the limit gives (overlay); 0 unknown
|
|
double frame_step_game_hz(void); // the rate the game draws at under the limit; 0 unknown
|
|
void frame_rate_day_host(Cpu *c); // the time of day's seconds a frame (set ostep, page +0xf60)
|
|
void frame_rate_water_host(Cpu *c); // the water's ripple steps a frame (set ostep, page +0xf50)
|
|
void frame_rate_sim_host(Cpu *c); // water and floor surfaces' fixed steps (set owater, page +0xf20)
|
|
void frame_rate_sound_gate_host(Cpu *c); // the sound job at whole steps (set osound, page +0xf10)
|
|
void frame_rate_sound_step_host(Cpu *c); // the step the sound job hands on (set osound, page +0xf00)
|
|
float frame_step_frames(void); // the 60 Hz frames the game steps per update (set ostep), else 1
|
|
void frame_step_flight(float *page, float *game, uint64_t *presents); // flight.c: the step at a host present
|
|
// rtss_limit.c: RivaTuner Statistics Server takes the frame limit where it runs
|
|
void rtss_limit_want(int64_t mhz); // the pacer's limit in millihertz: >0, 0 none; or why RTSS is
|
|
// kept out (rtss_decide.h RTSS_OUT_*)
|
|
void rtss_limit_movie(int hz); // the rate of a movie that plays, 0 none: the pacer holds it
|
|
int rtss_limit_active(void); // RTSS limits to the wanted rate: the pacer keeps the ceiling
|
|
int rtss_limit_state(void); // menu: 1 RTSS limits, 2 its profile is read-only, 3 it let the
|
|
// game run past its limit or never showed it holds it, 4
|
|
// kept out while a limit set in RTSS holds the game too
|
|
void rtss_limit_restore(void); // before the process ends: the profile's old limit back
|
|
void rtss_limit_crash(void); // a crash or fatal error: no call into RTSS, the next start
|
|
// puts the profile back (rtss-profile.txt)
|
|
int64_t frame_step_world_us(void); // game time since the loaded save's first frame, -1 before
|
|
// (NX2NAVI_FPS_LIMIT, live)
|
|
uint64_t frame_step_ticks(void); // game time since the first present in 60 Hz ticks (input scripts)
|
|
// In-launch A/B measurement: NX2NAVI_AB=<seconds> splits the world clock (frame_step_world_us) into blocks of that much
|
|
// game time in the order A B B A (repeated); rt_ab() is 1 in the B blocks, 0 in A blocks, before the world clock and
|
|
// without NX2NAVI_AB. rt_knob(name, def) reads the switch
|
|
// NX2NAVI_<name> once per call (def when unset): 0 off, 2 for "ab" (on in the B blocks only), 1 for anything else;
|
|
// callers keep it and test it with RT_KNOB_ON. The perf line counts the B frames of its window (tools/ab_summary.py
|
|
// compares the windows that are wholly A or wholly B).
|
|
int rt_ab(void);
|
|
int rt_knob(const char *name, const char *def);
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#define RT_KNOB_ON(mode) ((mode) == 2 ? rt_ab() : (mode))
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void frame_step_present(uint64_t display_ns, int interval); // nvnQueuePresentTexture: the frame's display time and
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// present interval (60 Hz ticks)
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// ---- boot (boot.c, main.c)
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typedef struct { const char *exefs, *romfs, *profile; int boot; double seconds; const char *shot, *gpu; } RtConfig;
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// romfs: directory with romfs.bin and index.json;
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// frames: --frames N (0 = no limit); shot: --shot
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// PATH; gpu: NX2NAVI_GPU
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const RtConfig *rt_config(void);
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void rt_boot_event(const char *what, Cpu *c, const char *detail); // checkpoint log; "nvn" ends --boot
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void rt_boot(void); // boot.c
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// Modes of nx2navi.exe. main.c has run mem_init and parsed the paths; each mode calls ldr_load itself if it needs the
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// modules, registers its host functions, then seals (hostfn_seal, or implicitly at the first rt_call). Return the
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// process exit code.
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int list_audio_devices(void); // audio_mixer.c: --list-audio-devices (SDL3 on every window back end)
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int probe_cfg(void); // cfg_probe.c
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int probe_dpi(void); // dpi_probe_win.c (Windows only)
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int list_monitors(void); // --list-monitors: gfx_window_win.c, gfx_window_sdl.c
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int probe_mods(void); // mods_probe.c
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void discord_init(void); // discord_rpc.c: the Rich Presence thread, game runs only
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int probe_discord(void); // discord_rpc.c
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int probe_loader(void), probe_kernel(void), probe_ipc(void), probe_services(void), probe_fs(void);
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int probe_gfx_abi(void); // gfx_abi_probe.c
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int probe_vkdevice(void); // vk_device.c
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int vk_sync_probe_devlost(void); // vk_sync.c: --probe-devlost
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int probe_nvn(void), probe_nvn_tex(void); // nvn_probe.c, nvn_tex_probe.c
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int probe_window(void); // gfx_window_probe.c
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int probe_shader(void); // gfx_shader.c
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int probe_census_dir(char *dir, size_t n); // gfx_shader_probe.c: build/<version>/shaders for the probes
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int probe_vkmem(void), probe_vkexec(void), probe_astc(void); // tex_probe.c, vk_exec_probe.c, astc_probe.c
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int probe_meshfb(void); // mesh_fb_probe.c
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int probe_zstd(void); // ov_zstd.c
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int probe_gamepad(void); // input.c
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int probe_movie(void); // movie_probe.c: the host movie decoders on one RomFS movie
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int vk_pipeline_prepare_shaders(void); // vk_pipeline.c: --prepare-shaders (tools/prepare_shaders.py)
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int vk_pipeline_warm_shaders(void); // vk_pipeline.c: --warm-shaders (tools/build_game.py)
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int vk_pipeline_prepare_pipelines(void); // vk_pipeline.c: --prepare-pipelines (the shared pipeline list)
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int vk_pipeline_probe_prewarm(void); // vk_pipeline.c: --probe-prewarm
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int vk_pipeline_probe_buildgate(void); // vk_pipeline.c: --probe-buildgate
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// main.c crash_handler: a fault while the boot builds pipelines or stage libraries leaves a note, which tells the
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// next start that the marker or journal it finds is a crash's and not a stopped start's (vk_pipeline.c pm_skipped).
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void vk_pipeline_crash_note(void);
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int vk_ffx_probe_cache(void); // vk_ffx.cpp: --probe-ffx-cache
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// vk_device.c: the drivers' own shader caches beside the exe (MESA_SHADER_CACHE_DIR, on NVIDIA's Linux driver
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// __GL_SHADER_DISK_CACHE_PATH and _SIZE) in the environment, once; before any thread can load a Vulkan driver
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void vk_driver_cache_env(void);
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int vk_pipeline_spirv_selftest(void); // vk_pipeline.c: --selftest, the SPIR-V rewrites without a device
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