PCI MSI: Add support for multiple MSI

Add the new API pci_enable_msi_block() to allow drivers to
request multiple MSI and reimplement pci_enable_msi in terms of
pci_enable_msi_block.  Ensure that the architecture back ends don't
have to know about multiple MSI.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 0 insertions, 6 deletions

diff --git a/drivers/pci/msi.h b/drivers/pci/msi.h
index 3898f5237144..71f4df2ef654 100644
--- a/drivers/pci/msi.h
+++ b/drivers/pci/msi.h
@@ -20,14 +20,8 @@
 #define msi_mask_bits_reg(base, is64bit) \
         ( (is64bit == 1) ? base+PCI_MSI_MASK_BIT : base+PCI_MSI_MASK_BIT-4)
 #define msi_disable(control)            control &= ~PCI_MSI_FLAGS_ENABLE
-#define multi_msi_capable(control) \
-        (1 << ((control & PCI_MSI_FLAGS_QMASK) >> 1))
-#define multi_msi_enable(control, num) \
-        control |= (((num >> 1) << 4) & PCI_MSI_FLAGS_QSIZE);
 #define is_64bit_address(control)       (!!(control & PCI_MSI_FLAGS_64BIT))
 #define is_mask_bit_support(control)    (!!(control & PCI_MSI_FLAGS_MASKBIT))
-#define msi_enable(control, num) multi_msi_enable(control, num); \
-        control |= PCI_MSI_FLAGS_ENABLE
 
 #define msix_table_offset_reg(base)     (base + 0x04)
 #define msix_pba_offset_reg(base)       (base + 0x08)