[src/trunk]: src/sys/arch/arm Add MSI-X support

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a69f189d5d3c
branches:  trunk
changeset: 445521:a69f189d5d3c
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Wed Oct 31 15:42:36 2018 +0000

description:
Add MSI-X support

diffstat:

 sys/arch/arm/acpi/acpi_pci_machdep.c |  13 ++++++++-----
 sys/arch/arm/fdt/acpi_fdt.c          |   6 +++---
 2 files changed, 11 insertions(+), 8 deletions(-)

diffs (69 lines):

diff -r 1f5ed447d281 -r a69f189d5d3c sys/arch/arm/acpi/acpi_pci_machdep.c
--- a/sys/arch/arm/acpi/acpi_pci_machdep.c      Wed Oct 31 15:42:17 2018 +0000
+++ b/sys/arch/arm/acpi/acpi_pci_machdep.c      Wed Oct 31 15:42:36 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: acpi_pci_machdep.c,v 1.4 2018/10/21 11:56:26 jmcneill Exp $ */
+/* $NetBSD: acpi_pci_machdep.c,v 1.5 2018/10/31 15:42:36 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: acpi_pci_machdep.c,v 1.4 2018/10/21 11:56:26 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: acpi_pci_machdep.c,v 1.5 2018/10/31 15:42:36 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -331,9 +331,12 @@
 acpi_pci_md_intr_string(void *v, pci_intr_handle_t ih, char *buf, size_t len)
 {
        const int irq = __SHIFTOUT(ih, ARM_PCI_INTR_IRQ);
+       const int vec = __SHIFTOUT(ih, ARM_PCI_INTR_MSI_VEC);
 
-       if (ih & ARM_PCI_INTR_MSI)
-               snprintf(buf, len, "irq %d (MSI)", irq);
+       if (ih & ARM_PCI_INTR_MSIX)
+               snprintf(buf, len, "irq %d (MSI-X vec %d)", irq, vec);
+       else if (ih & ARM_PCI_INTR_MSI)
+               snprintf(buf, len, "irq %d (MSI vec %d)", irq, vec);
        else
                snprintf(buf, len, "irq %d", irq);
 
@@ -367,7 +370,7 @@
 {
        struct acpi_pci_context * const ap = v;
 
-       if (ih & ARM_PCI_INTR_MSI)
+       if ((ih & (ARM_PCI_INTR_MSI | ARM_PCI_INTR_MSIX)) != 0)
                return arm_pci_msi_intr_establish(&ap->ap_pc, ih, ipl, callback, arg);
 
        const int irq = (int)__SHIFTOUT(ih, ARM_PCI_INTR_IRQ);
diff -r 1f5ed447d281 -r a69f189d5d3c sys/arch/arm/fdt/acpi_fdt.c
--- a/sys/arch/arm/fdt/acpi_fdt.c       Wed Oct 31 15:42:17 2018 +0000
+++ b/sys/arch/arm/fdt/acpi_fdt.c       Wed Oct 31 15:42:36 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: acpi_fdt.c,v 1.7 2018/10/28 10:21:42 jmcneill Exp $ */
+/* $NetBSD: acpi_fdt.c,v 1.8 2018/10/31 15:42:54 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2015-2017 Jared McNeill <jmcneill%invisible.ca@localhost>
@@ -29,7 +29,7 @@
 #include "opt_efi.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: acpi_fdt.c,v 1.7 2018/10/28 10:21:42 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: acpi_fdt.c,v 1.8 2018/10/31 15:42:54 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -127,7 +127,7 @@
            PCI_FLAGS_MRL_OKAY | PCI_FLAGS_MRM_OKAY | 
            PCI_FLAGS_MWI_OKAY;
 #ifdef __HAVE_PCI_MSI_MSIX
-       aa.aa_pciflags |= PCI_FLAGS_MSI_OKAY;
+       aa.aa_pciflags |= PCI_FLAGS_MSI_OKAY | PCI_FLAGS_MSIX_OKAY;
 #endif
        aa.aa_ic = 0;
        aa.aa_dmat = faa->faa_dmat;