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drivers: pcie_ep: iproc: clear pvm interrupts before handling

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We should clear the pvm interrupts (snoop and pcie pmon lite interrupt)
at source before handling them.

This will make sure that we do not lose any interrupts that may have
been asserted to interrupt controller during the handling routine.

Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
This commit is contained in:
Abhishek Shah 2020-10-20 23:40:58 +05:30 committed by Carles Cufí
parent b3c5fe6720
commit 1ecdbacc9d
1 changed files with 7 additions and 5 deletions
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12
drivers/pcie/endpoint/pcie_ep_iproc_msi.c
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@ -181,11 +181,13 @@ void iproc_pcie_func_mask_isr(void *arg)
LOG_DBG("%s: %x\n", __func__, data);
if ((data & SNOOP_VALID_INTR) && !is_pcie_function_mask(dev)) {
generate_all_pending_msix(dev);
if (data & SNOOP_VALID_INTR) {
pcie_write32(SNOOP_VALID_INTR,
&cfg->base->paxb_pcie_cfg_intr_clear);
if (!is_pcie_function_mask(dev)) {
generate_all_pending_msix(dev);
}
}
pcie_write32(SNOOP_VALID_INTR, &cfg->base->paxb_pcie_cfg_intr_clear);
}
void iproc_pcie_vector_mask_isr(void *arg)
@ -198,9 +200,9 @@ void iproc_pcie_vector_mask_isr(void *arg)
sys_read32(PMON_LITE_PCIE_INTERRUPT_STATUS));
if (msix_table_update) {
generate_all_pending_msix(dev);
sys_write32(BIT(WR_ADDR_CHK_INTR_EN),
PMON_LITE_PCIE_INTERRUPT_CLEAR);
generate_all_pending_msix(dev);
}
}
#endif