samsung-sm8650/android_kernel_samsung_sm8650-modules
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qcacmn: override irq disable/enable for msi mode

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irq_enable/disable may be different for legacy srng and msi
vs single line interrupts.  Provide a place to insert the interrupt
mitigation scheeme.

Change-Id: I66559a404b0c2105da143215203c04f2311a763a
CRs-Fixed: 1093364
This commit is contained in:
Houston Hoffman
2016-11-23 11:53:25 -08:00
committed by qcabuildsw
parent 15010778ea
commit 3aa074f338
1 changed files with 37 additions and 2 deletions
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39
hif/src/pcie/if_pci.c
View File

@@ -3551,7 +3551,27 @@ irqreturn_t hif_ce_interrupt_handler(int irq, void *context)
}
extern const char *ce_name[];
static int hif_ce_srng_msi_request_irq(struct hif_softc *scn)
/* hif_srng_msi_irq_disable() - disable the irq for msi
* @hif_sc: hif context
* @ce_id: which ce to disable copy complete interrupts for
*
* since MSI interrupts are not level based, the system can function
* without disabling these interrupts. Interrupt mitigation can be
* added here for better system performance.
*/
static void hif_ce_srng_msi_irq_disable(struct hif_softc *hif_sc, int ce_id)
{}
static void hif_ce_srng_msi_irq_enable(struct hif_softc *hif_sc, int ce_id)
{}
static void hif_ce_legacy_msi_irq_disable(struct hif_softc *hif_sc, int ce_id)
{}
static void hif_ce_legacy_msi_irq_enable(struct hif_softc *hif_sc, int ce_id)
{}
static int hif_ce_msi_configure_irq(struct hif_softc *scn)
{
int ret;
int ce_id, irq;
@@ -3586,6 +3606,20 @@ static int hif_ce_srng_msi_request_irq(struct hif_softc *scn)
goto free_irq;
}
if (ce_srng_based(scn)) {
scn->bus_ops.hif_irq_disable =
&hif_ce_srng_msi_irq_disable;
scn->bus_ops.hif_irq_enable =
&hif_ce_srng_msi_irq_enable;
} else {
scn->bus_ops.hif_irq_disable =
&hif_ce_legacy_msi_irq_disable;
scn->bus_ops.hif_irq_enable =
&hif_ce_legacy_msi_irq_enable;
}
return ret;
free_irq:
@@ -3601,6 +3635,7 @@ free_irq:
return ret;
}
/**
* hif_configure_irq() - configure interrupt
*
@@ -3620,7 +3655,7 @@ int hif_configure_irq(struct hif_softc *scn)
hif_init_reschedule_tasklet_work(sc);
ret = hif_ce_srng_msi_request_irq(scn);
ret = hif_ce_msi_configure_irq(scn);
if (ret == 0) {
goto end;
}