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Subject[PATCH] PCI MSI Kconfig consolidation
Date
This consolidates the PCI MSI configuration into drivers/pci/Kconfig,
removing it from the i386, x86_64, and ia64 Kconfig.

It also changes the default for ia64 from "y" to "n". The default on
i386 is "n" already, and I'm not sure why ia64 should be different.

===== arch/i386/Kconfig 1.116 vs edited =====
--- 1.116/arch/i386/Kconfig Mon Apr 12 11:54:45 2004
+++ edited/arch/i386/Kconfig Tue Apr 13 10:26:55 2004
@@ -1095,25 +1095,6 @@
select ACPI_BOOT
default y

-config PCI_USE_VECTOR
- bool "Vector-based interrupt indexing (MSI)"
- depends on X86_LOCAL_APIC && X86_IO_APIC
- default n
- help
- This replaces the current existing IRQ-based index interrupt scheme
- with the vector-base index scheme. The advantages of vector base
- over IRQ base are listed below:
- 1) Support MSI implementation.
- 2) Support future IOxAPIC hotplug
-
- Note that this allows the device drivers to enable MSI, Message
- Signaled Interrupt, on all MSI capable device functions detected.
- Message Signal Interrupt enables an MSI-capable hardware device to
- send an inbound Memory Write on its PCI bus instead of asserting
- IRQ signal on device IRQ pin.
-
- If you don't know what to do here, say N.
-
source "drivers/pci/Kconfig"

config ISA
===== arch/ia64/Kconfig 1.69 vs edited =====
--- 1.69/arch/ia64/Kconfig Mon Apr 12 19:50:46 2004
+++ edited/arch/ia64/Kconfig Tue Apr 13 10:30:55 2004
@@ -361,16 +361,6 @@
information about which PCI hardware does work under Linux and which
doesn't.

-config PCI_USE_VECTOR
- bool
- default y if IA64
- help
- This enables MSI, Message Signaled Interrupt, on specific
- MSI capable device functions detected upon requests from the
- device drivers. Message Signal Interrupt enables an MSI-capable
- hardware device to send an inbound Memory Write on its PCI bus
- instead of asserting IRQ signal on device IRQ pin.
-
config PCI_DOMAINS
bool
default PCI
===== arch/x86_64/Kconfig 1.47 vs edited =====
--- 1.47/arch/x86_64/Kconfig Mon Apr 12 11:53:56 2004
+++ edited/arch/x86_64/Kconfig Tue Apr 13 10:29:09 2004
@@ -336,26 +336,6 @@
depends on PCI
select ACPI_BOOT

-# the drivers/pci/msi.c code needs to be fixed first before enabling
-config PCI_USE_VECTOR
- bool "Vector-based interrupt indexing"
- depends on X86_LOCAL_APIC && NOTWORKING
- default n
- help
- This replaces the current existing IRQ-based index interrupt scheme
- with the vector-base index scheme. The advantages of vector base
- over IRQ base are listed below:
- 1) Support MSI implementation.
- 2) Support future IOxAPIC hotplug
-
- Note that this enables MSI, Message Signaled Interrupt, on all
- MSI capable device functions detected if users also install the
- MSI patch. Message Signal Interrupt enables an MSI-capable
- hardware device to send an inbound Memory Write on its PCI bus
- instead of asserting IRQ signal on device IRQ pin.
-
- If you don't know what to do here, say N.
-
source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"
===== drivers/pci/Kconfig 1.3 vs edited =====
--- 1.3/drivers/pci/Kconfig Thu Jan 9 17:14:51 2003
+++ edited/drivers/pci/Kconfig Tue Apr 13 10:30:17 2004
@@ -1,6 +1,25 @@
#
# PCI configuration
#
+config PCI_USE_VECTOR
+ bool "Vector-based interrupt indexing (MSI)"
+ depends on (X86_LOCAL_APIC && X86_IO_APIC && !X86_64) || IA64
+ default n
+ help
+ This replaces the current existing IRQ-based index interrupt scheme
+ with the vector-base index scheme. The advantages of vector base
+ over IRQ base are listed below:
+ 1) Support MSI implementation.
+ 2) Support future IOxAPIC hotplug
+
+ Note that this allows the device drivers to enable MSI, Message
+ Signaled Interrupt, on all MSI capable device functions detected.
+ Message Signal Interrupt enables an MSI-capable hardware device to
+ send an inbound Memory Write on its PCI bus instead of asserting
+ IRQ signal on device IRQ pin.
+
+ If you don't know what to do here, say N.
+
config PCI_LEGACY_PROC
bool "Legacy /proc/pci interface"
depends on PCI
-
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