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path: root/drivers/pci/msi.c
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Diffstat (limited to 'drivers/pci/msi.c')
-rw-r--r--drivers/pci/msi.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 9fab30a..066c2fb 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -23,6 +23,7 @@
#include "pci.h"
static int pci_msi_enable = 1;
+int pci_msi_ignore_mask;
#define msix_table_size(flags) ((flags & PCI_MSIX_FLAGS_QSIZE) + 1)
@@ -167,7 +168,7 @@ u32 default_msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
{
u32 mask_bits = desc->masked;
- if (!desc->msi_attrib.maskbit)
+ if (pci_msi_ignore_mask || !desc->msi_attrib.maskbit)
return 0;
mask_bits &= ~mask;
@@ -199,6 +200,10 @@ u32 default_msix_mask_irq(struct msi_desc *desc, u32 flag)
u32 mask_bits = desc->masked;
unsigned offset = desc->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_VECTOR_CTRL;
+
+ if (pci_msi_ignore_mask)
+ return 0;
+
mask_bits &= ~PCI_MSIX_ENTRY_CTRL_MASKBIT;
if (flag)
mask_bits |= PCI_MSIX_ENTRY_CTRL_MASKBIT;
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