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qcacmn: Add CDP API to dump srng SW hp-tp info

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Add CDP API to dump the SW head pointer and tail pointer
of a few important srngs. This can be used to debug or
get a direction when the device doesn't dump ram info.

dp_print_ring_stat_from_hal is not being used, since without
device force wake recipe in place, reading hardware hp/tp
value can lead to NOC errors.

Change-Id: Ib0381acb007f1b4431f6a02cd9762e461d6393e8
CRs-Fixed: 2826084
This commit is contained in:
Rakesh Pillai
2020-12-02 18:57:50 +05:30
committed by snandini
parent 0d42f3216a
commit 2989d9b1fc
3 changed files with 66 additions and 0 deletions
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19
dp/inc/cdp_txrx_misc.h
View File

@@ -863,4 +863,23 @@ cdp_soc_is_swlm_enabled(ol_txrx_soc_handle soc)
return 0;
}
/**
* cdp_display_txrx_hw_info() - Dump the DP rings info
* @soc: soc handle
*
* Return: none
*/
static inline void
cdp_display_txrx_hw_info(ol_txrx_soc_handle soc)
{
if (!soc || !soc->ops || !soc->ops->misc_ops) {
QDF_TRACE(QDF_MODULE_ID_CDP, QDF_TRACE_LEVEL_DEBUG,
"%s: Invalid Instance:", __func__);
return;
}
if (soc->ops->misc_ops->display_txrx_hw_info)
return soc->ops->misc_ops->display_txrx_hw_info(soc);
}
#endif /* _CDP_TXRX_MISC_H_ */

2
dp/inc/cdp_txrx_ops.h
View File

@@ -1190,6 +1190,7 @@ struct ol_if_ops {
* for this particular vdev.
* @set_swlm_enable: Enable or Disable Software Latency Manager.
* @is_swlm_enabled: Check if Software latency manager is enabled or not.
* @display_txrx_hw_info: Dump the DP rings info
*
* Function pointers for miscellaneous soc/pdev/vdev related operations.
*/
@@ -1278,6 +1279,7 @@ struct cdp_misc_ops {
QDF_STATUS (*set_swlm_enable)(struct cdp_soc_t *soc_hdl,
uint8_t val);
uint8_t (*is_swlm_enabled)(struct cdp_soc_t *soc_hdl);
void (*display_txrx_hw_info)(struct cdp_soc_t *soc_hdl);
};
/**

45
dp/wifi3.0/dp_main.c
View File

@@ -10156,6 +10156,50 @@ static uint8_t dp_soc_is_swlm_enabled(struct cdp_soc_t *soc_hdl)
}
#endif
/**
* dp_display_srng_info() - Dump the srng HP TP info
* @soc_hdl: CDP Soc handle
*
* This function dumps the SW hp/tp values for the important rings.
* HW hp/tp values are not being dumped, since it can lead to
* READ NOC error when UMAC is in low power state. MCC does not have
* device force wake working yet.
*
* Return: none
*/
static void dp_display_srng_info(struct cdp_soc_t *soc_hdl)
{
struct dp_soc *soc = cdp_soc_t_to_dp_soc(soc_hdl);
hal_soc_handle_t hal_soc = soc->hal_soc;
uint32_t hp, tp, i;
dp_info("SRNG HP-TP data:");
for (i = 0; i < soc->num_tcl_data_rings; i++) {
hal_get_sw_hptp(hal_soc, soc->tcl_data_ring[i].hal_srng,
&hp, &tp);
dp_info("TCL DATA ring[%d]: hp=0x%x, tp=0x%x", i, hp, tp);
hal_get_sw_hptp(hal_soc, soc->tx_comp_ring[i].hal_srng,
&hp, &tp);
dp_info("TX comp ring[%d]: hp=0x%x, tp=0x%x", i, hp, tp);
}
for (i = 0; i < soc->num_reo_dest_rings; i++) {
hal_get_sw_hptp(hal_soc, soc->reo_dest_ring[i].hal_srng,
&hp, &tp);
dp_info("REO DST ring[%d]: hp=0x%x, tp=0x%x", i, hp, tp);
}
hal_get_sw_hptp(hal_soc, soc->reo_exception_ring.hal_srng, &hp, &tp);
dp_info("REO exception ring: hp=0x%x, tp=0x%x", hp, tp);
hal_get_sw_hptp(hal_soc, soc->rx_rel_ring.hal_srng, &hp, &tp);
dp_info("WBM RX release ring: hp=0x%x, tp=0x%x", hp, tp);
hal_get_sw_hptp(hal_soc, soc->wbm_desc_rel_ring.hal_srng, &hp, &tp);
dp_info("WBM desc release ring: hp=0x%x, tp=0x%x", hp, tp);
}
/**
* dp_soc_get_dp_txrx_handle() - get context for external-dp from dp soc
* @soc_handle: datapath soc handle
@@ -11549,6 +11593,7 @@ static struct cdp_misc_ops dp_ops_misc = {
.set_swlm_enable = dp_soc_set_swlm_enable,
.is_swlm_enabled = dp_soc_is_swlm_enabled,
#endif
.display_txrx_hw_info = dp_display_srng_info,
};
#endif