On Wed, 24 Mar 2021 13:56:16 +0000,
Bharat Kumar Gogada <bhara...@xilinx.com> wrote:
> > Thanks for that. Can you please try the following patch and let me know if
> > it
> > helps?
> >
> > Thanks,
> >
> > M.
> >
> > diff --git a/drivers/pci/controller/pcie-xilinx.c
> > b/drivers/pci/controller/pcie-
> > xilinx.c
> > index ad9abf405167..14001febf59a 100644
> > --- a/drivers/pci/controller/pcie-xilinx.c
> > +++ b/drivers/pci/controller/pcie-xilinx.c
> > @@ -194,8 +194,18 @@ static struct pci_ops xilinx_pcie_ops = {
> >
> > /* MSI functions */
> >
> > +static void xilinx_msi_top_irq_ack(struct irq_data *d) {
> > + /*
> > + * xilinx_pcie_intr_handler() will have performed the Ack.
> > + * Eventually, this should be fixed and the Ack be moved in
> > + * the respective callbacks for INTx and MSI.
> > + */
> > +}
> > +
> > static struct irq_chip xilinx_msi_top_chip = {
> > .name = "PCIe MSI",
> > + .irq_ack = xilinx_msi_top_irq_ack,
> > };
> >
> > static int xilinx_msi_set_affinity(struct irq_data *d, const struct cpumask
> > *mask, bool force) @@ -206,7 +216,7 @@ static int
> > xilinx_msi_set_affinity(struct irq_data *d, const struct cpumask *mas
> > static
> > void xilinx_compose_msi_msg(struct irq_data *data, struct msi_msg *msg) {
> > struct xilinx_pcie_port *pcie = irq_data_get_irq_chip_data(data);
> > - phys_addr_t pa = virt_to_phys(pcie);
> > + phys_addr_t pa = ALIGN_DOWN(virt_to_phys(pcie), SZ_4K);
> >
> > msg->address_lo = lower_32_bits(pa);
> > msg->address_hi = upper_32_bits(pa);
> > @@ -468,7 +478,7 @@ static int xilinx_pcie_init_irq_domain(struct
> > xilinx_pcie_port *port)
> >
> > /* Setup MSI */
> > if (IS_ENABLED(CONFIG_PCI_MSI)) {
> > - phys_addr_t pa = virt_to_phys(port);
> > + phys_addr_t pa = ALIGN_DOWN(virt_to_phys(port), SZ_4K);
> >
> > ret = xilinx_allocate_msi_domains(port);
> > if (ret)
> >
> Thanks Marc.
> With above patch now everything works fine, tested a Samsung NVMe SSD.
> tst~# lspci
> 00:00.0 PCI bridge: Xilinx Corporation Device 0706
> 01:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD
> Controller 172Xa/172Xb (rev 01)
Great, thanks for giving it a shot. Can I take this as a Tested-by:
tag?
Thanks,
M.
--
Without deviation from the norm, progress is not possible.
