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qcacld-3.0: Remove spinlocks from ce_enable_msi

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ce_enable_msi should happen before interupts are enabled.  Therefore
we should be single threaded here and don't need to protect access
with a spin lock.

Change-Id: I24feec02003bdb402201d71d1cd5254dacae0b72
CRs-Fixed: 941355
This commit is contained in:
Houston Hoffman 2015-09-02 14:49:48 -07:00 • committed by Satish Singh
commit b4eb2b20b4
1 changed files with 11 additions and 3 deletions
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14
core/hif/src/ce/ce_service.c
View file

@ -1610,6 +1610,17 @@ bool ce_check_rx_pending(struct ol_softc *scn, int ce_id)
else
return false;
}
/**
* ce_enable_msi(): write the msi configuration to the target
* @scn: hif context
* @CE_id: which copy engine will be configured for msi interupts
* @msi_addr_lo: Hardware will write to this address to generate an interrupt
* @msi_addr_hi: Hardware will write to this address to generate an interrupt
* @msi_data: Hardware will write this data to generate an interrupt
*
* should be done in the initialization sequence so no locking would be needed
*/
void ce_enable_msi(struct ol_softc *scn, unsigned int CE_id,
uint32_t msi_addr_lo, uint32_t msi_addr_hi,
uint32_t msi_data)
@ -1620,11 +1631,9 @@ void ce_enable_msi(struct ol_softc *scn, unsigned int CE_id,
u_int32_t ctrl_addr;
uint32_t tmp;
adf_os_spin_lock(&scn->target_lock);
CE_state = scn->ce_id_to_state[CE_id];
if (!CE_state) {
HIF_ERROR("%s: error - CE_state = NULL", __func__);
adf_os_spin_unlock(&scn->target_lock);
return;
}
targid = TARGID(sc);
@ -1635,7 +1644,6 @@ void ce_enable_msi(struct ol_softc *scn, unsigned int CE_id,
tmp = CE_CTRL_REGISTER1_GET(scn, ctrl_addr);
tmp |= (1 << CE_MSI_ENABLE_BIT);
CE_CTRL_REGISTER1_SET(scn, ctrl_addr, tmp);
adf_os_spin_unlock(&scn->target_lock);
#endif
}