Hullo Andrew,
I believe this was the intention;
On Wed, 17 Dec 2003, Andrew Morton wrote:
> mpparse_es7000.patch
> mpparse: fix IRQ breakage from the es7000 merge
For ES7000 add an offset of 16 to the irq in order to setup a mapping where
ISA/legacy interrupts are in the 0-15 range and PCI 16 and above. This was
a cleanup fix in order to facilitate easy differentiating between legacy
and non legacy interrupt setup.
===
The ES7000 merge added a bit of code of offset the IRQ numbers. We're not
too sure why; it wasn't changelogged.
But it broke other systems, so this patch arranges for that code to only be
activated on es7000 machines.
arch/i386/kernel/dmi_scan.c | 1 +
arch/i386/kernel/mpparse.c | 7 +++++--
arch/i386/mach-es7000/es7000.c | 2 --
include/asm-i386/system.h | 1 +
4 files changed, 7 insertions(+), 4 deletions(-)
diff -puN arch/i386/kernel/dmi_scan.c~mpparse_es7000 arch/i386/kernel/dmi_scan.c
--- 25/arch/i386/kernel/dmi_scan.c~mpparse_es7000 2003-11-21
01:30:11.000000000 -0800
+++ 25-akpm/arch/i386/kernel/dmi_scan.c 2003-11-21 01:30:11.000000000 -0800
@@ -16,6 +16,7 @@ EXPORT_SYMBOL(dmi_broken);
int is_sony_vaio_laptop;
int is_unsafe_smbus;
+int es7000_plat = 0;
struct dmi_header
{
diff -puN arch/i386/kernel/mpparse.c~mpparse_es7000 arch/i386/kernel/mpparse.c
--- 25/arch/i386/kernel/mpparse.c~mpparse_es7000 2003-11-21
01:30:11.000000000 -0800
+++ 25-akpm/arch/i386/kernel/mpparse.c 2003-11-21 01:30:11.000000000 -0800
@@ -1129,8 +1129,11 @@ void __init mp_parse_prt (void)
continue;
ioapic_pin = irq - mp_ioapic_routing[ioapic].irq_start;
- if (!ioapic && (irq < 16))
- irq += 16;
+ if (es7000_plat) {
+ if (!ioapic && (irq < 16))
+ irq += 16;
+ }
+
/*
* Avoid pin reprogramming. PRTs typically include entries
* with redundant pin->irq mappings (but unique PCI devices);
diff -puN arch/i386/mach-es7000/es7000.c~mpparse_es7000
arch/i386/mach-es7000/es7000.c
--- 25/arch/i386/mach-es7000/es7000.c~mpparse_es7000 2003-11-21
01:30:11.000000000 -0800
+++ 25-akpm/arch/i386/mach-es7000/es7000.c 2003-11-21 01:30:11.000000000
-0800
@@ -51,8 +51,6 @@ struct mip_reg *host_reg;
int mip_port;
unsigned long mip_addr, host_addr;
-static int es7000_plat;
-
/*
* Parse the OEM Table
*/
diff -puN include/asm-i386/system.h~mpparse_es7000 include/asm-i386/system.h
--- 25/include/asm-i386/system.h~mpparse_es7000 2003-11-21 01:30:11.000000000
-0800
+++ 25-akpm/include/asm-i386/system.h 2003-11-21 01:30:11.000000000 -0800
@@ -470,6 +470,7 @@ void enable_hlt(void);
extern unsigned long dmi_broken;
extern int is_sony_vaio_laptop;
+extern int es7000_plat;
#define BROKEN_ACPI_Sx 0x0001
#define BROKEN_INIT_AFTER_S1 0x0002
_
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxxx For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"aart@xxxxxxxxx";> aart@xxxxxxxxx </a>
|
