summaryrefslogtreecommitdiff
path: root/arch/powerpc/platforms/pseries/msi.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/platforms/pseries/msi.c')
-rw-r--r--arch/powerpc/platforms/pseries/msi.c44
1 files changed, 17 insertions, 27 deletions
diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c
index 18ff4626d74e..8ab5add4ac82 100644
--- a/arch/powerpc/platforms/pseries/msi.c
+++ b/arch/powerpc/platforms/pseries/msi.c
@@ -336,26 +336,6 @@ out:
return request;
}
-static int rtas_msi_check_device(struct pci_dev *pdev, int nvec, int type)
-{
- int quota, rc;
-
- if (type == PCI_CAP_ID_MSIX)
- rc = check_req_msix(pdev, nvec);
- else
- rc = check_req_msi(pdev, nvec);
-
- if (rc)
- return rc;
-
- quota = msi_quota_for_device(pdev, nvec);
-
- if (quota && quota < nvec)
- return quota;
-
- return 0;
-}
-
static int check_msix_entries(struct pci_dev *pdev)
{
struct msi_desc *entry;
@@ -397,15 +377,24 @@ static void rtas_hack_32bit_msi_gen2(struct pci_dev *pdev)
static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec_in, int type)
{
struct pci_dn *pdn;
- int hwirq, virq, i, rc;
+ int hwirq, virq, i, quota, rc;
struct msi_desc *entry;
struct msi_msg msg;
int nvec = nvec_in;
int use_32bit_msi_hack = 0;
- pdn = pci_get_pdn(pdev);
- if (!pdn)
- return -ENODEV;
+ if (type == PCI_CAP_ID_MSIX)
+ rc = check_req_msix(pdev, nvec);
+ else
+ rc = check_req_msi(pdev, nvec);
+
+ if (rc)
+ return rc;
+
+ quota = msi_quota_for_device(pdev, nvec);
+
+ if (quota && quota < nvec)
+ return quota;
if (type == PCI_CAP_ID_MSIX && check_msix_entries(pdev))
return -EINVAL;
@@ -416,12 +405,14 @@ static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec_in, int type)
*/
if (type == PCI_CAP_ID_MSIX) {
int m = roundup_pow_of_two(nvec);
- int quota = msi_quota_for_device(pdev, m);
+ quota = msi_quota_for_device(pdev, m);
if (quota >= m)
nvec = m;
}
+ pdn = pci_get_pdn(pdev);
+
/*
* Try the new more explicit firmware interface, if that fails fall
* back to the old interface. The old interface is known to never
@@ -485,7 +476,7 @@ again:
irq_set_msi_desc(virq, entry);
/* Read config space back so we can restore after reset */
- read_msi_msg(virq, &msg);
+ __read_msi_msg(entry, &msg);
entry->msg = msg;
}
@@ -526,7 +517,6 @@ static int rtas_msi_init(void)
WARN_ON(ppc_md.setup_msi_irqs);
ppc_md.setup_msi_irqs = rtas_setup_msi_irqs;
ppc_md.teardown_msi_irqs = rtas_teardown_msi_irqs;
- ppc_md.msi_check_device = rtas_msi_check_device;
WARN_ON(ppc_md.pci_irq_fixup);
ppc_md.pci_irq_fixup = rtas_msi_pci_irq_fixup;