diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/gsp_phys_booter.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/kernel/gsp_phys_booter.c b/kernel/gsp_phys_booter.c index b966ac3..d20e042 100644 --- a/kernel/gsp_phys_booter.c +++ b/kernel/gsp_phys_booter.c @@ -16314,6 +16314,16 @@ static u64 gsp_phys_gr_stall_retry; static u32 gsp_phys_gr_nw_streak; static u64 gsp_phys_gr_wedge_quiet; static u64 gsp_phys_gr_wedge_heals; +/* + * r411: once a quiet heal has succeeded on this boot, the lane is in a + * wedge-prone episode. r418 showed the wedge can alternate one-no-write / + * one-heal, and the healed launch resets nw_streak, so a streak-only trigger + * quieted only every second wedged launch and the other was accepted. The + * heal count makes the episode sticky for the boot: any later zero-write + * launch gets the quiet path on its first retry, so every wedged launch + * either heals (engine writes, client data correct) or is loudly classified. + */ +static bool gsp_phys_gr_wedge_episode; /* m86: program-page override blob (see gsp-phys-gr-override). */ static u8 gsp_phys_gr_override[GSP_PHYS_PAGE_SIZE]; static u32 gsp_phys_gr_override_len; @@ -20529,7 +20539,8 @@ gr_page_unmapped: while (wrote == 0 && nw_attempts < nw_retries) { u32 quiet_ms = 0; - if (READ_ONCE(gsp_phys_gr_nw_streak) > 0 && + if ((READ_ONCE(gsp_phys_gr_nw_streak) > 0 || + READ_ONCE(gsp_phys_gr_wedge_episode)) && nw_attempts <= 1) { quiet_ms = gsp_phys_gr_wedge_quiet_ms_value(); @@ -20833,6 +20844,8 @@ gr_page_unmapped: if (quiet_used) { if (wrote) { gsp_phys_gr_wedge_heals++; + WRITE_ONCE(gsp_phys_gr_wedge_episode, + true); pr_warn("vgsp-gr: WEDGE-QUIET healed: engine wrote %u page(s) after the %u ms hold (streak was %u)\n", wrote, quiet_used, READ_ONCE( @@ -21003,10 +21016,16 @@ gr_page_unmapped: * even when the retry loop is disabled so the streak always * reflects the accepted-outcome history. */ - if (n_tracked) + if (n_tracked) { WRITE_ONCE(gsp_phys_gr_nw_streak, wrote ? 0u : READ_ONCE(gsp_phys_gr_nw_streak) + 1u); + /* r411: arm the wedge episode on any accepted + * zero-write launch, so the next zero-write launch + * quiets even after a heal reset the streak. */ + if (!wrote) + WRITE_ONCE(gsp_phys_gr_wedge_episode, true); + } } /* * m114: the kernel ran against the pre-commit bounce window; copy the |