On Thursday, December 12, 2013 at 07:29:03 PM, Harro Haan wrote:
> The interrupts were cleared after the irq handler was called.
> This means that new interrupts that occur after the handler handled
> the previous irq but before the interrupt is cleared will be missed.
>
> Signed-off-by: Harro Haan <hrhaan@xxxxxxxxx>
> Cc: Mohit Kumar <mohit.kumar@xxxxxx>
> Cc: Jingoo Han <jg1.han@xxxxxxxxxxx>
> Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> Cc: Marek Vasut <marex@xxxxxxx>
> Cc: Richard Zhu <hong-xing.zhu@xxxxxxxxxxxxx>
> Cc: Shawn Guo <shawn.guo@xxxxxxxxxx>
> Cc: Pratyush Anand <pratyush.anand@xxxxxx>
> Cc: Tim Harvey <tharvey@xxxxxxxxxxxxx>
> Cc: Juergen Beisert <jbe@xxxxxxxxxxxxxx>
> Cc: Arnd Bergmann <arnd@xxxxxxxx>
> Cc: Siva Reddy Kallam <siva.kallam@xxxxxxxxxxx>
> Cc: Srikanth T Shivanand <ts.srikanth@xxxxxxxxxxx>
> Cc: Sean Cross <xobs@xxxxxxxxxx>
> Cc: linux-pci@xxxxxxxxxxxxxxx
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> ---
> drivers/pci/host/pcie-designware.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/pci/host/pcie-designware.c
> b/drivers/pci/host/pcie-designware.c index 1ce0453..762f596 100644
> --- a/drivers/pci/host/pcie-designware.c
> +++ b/drivers/pci/host/pcie-designware.c
> @@ -167,11 +167,13 @@ void dw_handle_msi_irq(struct pcie_port *pp)
> while ((pos = find_next_bit(&val, 32, pos)) != 32) {
> irq = irq_find_mapping(pp->irq_domain,
> i * 32 + pos);
> + dw_pcie_wr_own_conf(pp,
> + PCIE_MSI_INTR0_STATUS + i * 12,
> + 4, 1 << pos);
> generic_handle_irq(irq);
> pos++;
> }
> }
> - dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_STATUS + i * 12, 4, val);
> }
> }
On imx6-sabrelite:
Tested-by: Marek Vasut <marex@xxxxxxx>
Best regards,
Marek Vasut
--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
