Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add MSI-X support.

Browse Source
This commit is contained in:
jmcneill 2018-10-31 15:42:17 +00:00
parent 86955039b0
commit 1ddc0ea041
2 changed files with 29 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
sys/arch/arm/pci/pci_msi_machdep.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pci_msi_machdep.c,v 1.1 2018/10/21 00:42:06 jmcneill Exp $ */
/* $NetBSD: pci_msi_machdep.c,v 1.2 2018/10/31 15:42:17 jmcneill Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pci_msi_machdep.c,v 1.1 2018/10/21 00:42:06 jmcneill Exp $");
__KERNEL_RCSID(0, "$NetBSD: pci_msi_machdep.c,v 1.2 2018/10/31 15:42:17 jmcneill Exp $");
#include <sys/kernel.h>
#include <sys/kmem.h>
@ -81,6 +81,28 @@ arm_pci_msi_alloc_common(pci_intr_handle_t **ihps, int *count, const struct pci_
return 0;
}
static int
arm_pci_msix_alloc_common(pci_intr_handle_t **ihps, u_int *table_indexes, int *count, const struct pci_attach_args *pa, bool exact)
{
pci_intr_handle_t *vectors;
struct arm_pci_msi *msi;
if ((pa->pa_flags & PCI_FLAGS_MSIX_OKAY) == 0)
return ENODEV;
msi = SIMPLEQ_FIRST(&arm_pci_msi_list); /* XXX multiple frame support */
if (msi == NULL || msi->msix_alloc == NULL)
return EINVAL;
vectors = msi->msix_alloc(msi, table_indexes, count, pa, exact);
if (vectors == NULL)
return ENOMEM;
*ihps = vectors;
return 0;
}
/*
* arm_pci_msi MD API
*/
@ -125,19 +147,19 @@ pci_msi_alloc_exact(const struct pci_attach_args *pa, pci_intr_handle_t **ihps,
int
pci_msix_alloc(const struct pci_attach_args *pa, pci_intr_handle_t **ihps, int *count)
{
return EOPNOTSUPP;
return arm_pci_msix_alloc_common(ihps, NULL, count, pa, false);
}
int
pci_msix_alloc_exact(const struct pci_attach_args *pa, pci_intr_handle_t **ihps, int count)
{
return EOPNOTSUPP;
return arm_pci_msix_alloc_common(ihps, NULL, &count, pa, true);
}
int
pci_msix_alloc_map(const struct pci_attach_args *pa, pci_intr_handle_t **ihps, u_int *table_indexes, int count)
{
return EOPNOTSUPP;
return arm_pci_msix_alloc_common(ihps, table_indexes, &count, pa, true);
}
int

3
sys/arch/arm/pci/pci_msi_machdep.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: pci_msi_machdep.h,v 1.1 2018/10/21 00:42:06 jmcneill Exp $ */
/* $NetBSD: pci_msi_machdep.h,v 1.2 2018/10/31 15:42:17 jmcneill Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
@ -42,6 +42,7 @@ struct arm_pci_msi {
void * msi_priv;
pci_intr_handle_t * (*msi_alloc)(struct arm_pci_msi *, int *, const struct pci_attach_args *, bool);
pci_intr_handle_t * (*msix_alloc)(struct arm_pci_msi *, u_int *, int *, const struct pci_attach_args *, bool);
void * (*msi_intr_establish)(struct arm_pci_msi *,
pci_intr_handle_t, int, int (*)(void *), void *);
void (*msi_intr_release)(struct arm_pci_msi *,