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qcacmn: Record data if pci write during suspended state

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When FW was enabling WOW, a ring HP update interrupt is seen
which led to fw crash.
This change records any PCI writes that went through during
runtime suspend from host.

Change-Id: I3c44760ebaf49a131b483813522fe3e451957215
CRs-Fixed: 3280166
This commit is contained in:
Ananya Gupta
2022-09-06 11:42:11 +05:30
committed by Madan Koyyalamudi
parent c0e0b4f1e1
commit 61b836202a
2 changed files with 51 additions and 0 deletions
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17
hal/wifi3.0/hal_internal.h
View File

@@ -1285,6 +1285,23 @@ union hal_shadow_reg_cfg {
#endif #endif
}; };
#ifdef HAL_RECORD_SUSPEND_WRITE
#define HAL_SUSPEND_WRITE_HISTORY_MAX 256
struct hal_suspend_write_record {
uint64_t ts;
uint8_t ring_id;
uit32_t value;
uint32_t direct_wcount;
};
struct hal_suspend_write_history {
qdf_atomic_t index;
struct hal_suspend_write_record record[HAL_SUSPEND_WRITE_HISTORY_MAX];
};
#endif
/** /**
* struct hal_soc - HAL context to be used to access SRNG APIs * struct hal_soc - HAL context to be used to access SRNG APIs
* (currently used by data path and * (currently used by data path and

34
hal/wifi3.0/hal_srng.c
View File

@@ -978,6 +978,38 @@ static inline void hal_delayed_reg_write_deinit(struct hal_soc *hal)
#endif #endif
#ifdef FEATURE_HAL_DELAYED_REG_WRITE #ifdef FEATURE_HAL_DELAYED_REG_WRITE
#ifdef HAL_RECORD_SUSPEND_WRITE
static struct hal_suspend_write_history
g_hal_suspend_write_history[HAL_SUSPEND_WRITE_HISTORY_MAX];
static
void hal_event_suspend_record(uint8_t ring_id, uint32_t value, uint32_t count)
{
uint32_t index = qdf_atomic_read(g_hal_suspend_write_history.index) &
(HAL_SUSPEND_WRITE_HISTORY_MAX - 1);
struct hal_suspend_write_record *cur_event =
&hal_suspend_write_event.record[index];
cur_event->ts = qdf_get_log_timestamp();
cur_event->ring_id = ring_id;
cur_event->value = value;
cur_event->direct_wcount = count;
qdf_atomic_inc(g_hal_suspend_write_history.index);
}
static inline
void hal_record_suspend_write(uint8_t ring_id, uint32_t value, uint32_t count)
{
if (hif_rtpm_get_state() >= HIF_RTPM_STATE_SUSPENDING)
hal_event_suspend_record(ring_id, value, count);
}
#else
static inline
void hal_record_suspend_write(uint8_t ring_id, uint32_t value, uint32_t count)
{
}
#endif
#ifdef QCA_WIFI_QCA6750 #ifdef QCA_WIFI_QCA6750
void hal_delayed_reg_write(struct hal_soc *hal_soc, void hal_delayed_reg_write(struct hal_soc *hal_soc,
struct hal_srng *srng, struct hal_srng *srng,
@@ -1034,6 +1066,8 @@ void hal_delayed_reg_write(struct hal_soc *hal_soc,
} else { } else {
hal_reg_write_enqueue(hal_soc, srng, addr, value); hal_reg_write_enqueue(hal_soc, srng, addr, value);
} }
hal_record_suspend_write(srng->ring_id, value, srng->wstats.direct);
} }
#endif #endif
#endif #endif