Re: [2.6 patch] let IA64_GENERIC select more stuff

[Jes Sorensen <jes@sgi.com>]

>>>>> "Matthew" == Matthew Wilcox <matthew@wil.cx> writes:

Matthew> On Thu, Feb 09, 2006 at 07:53:11AM -0500, Jes Sorensen wrote:
>> There's other reasons why this is a moot exercise anyway,
>> allyesconfig doesn't link on ia64 due to the size of the object
>> exceeding the reach of the relative link relocs. Not much you can
>> do about that.

Matthew> That'd be a toolchain problem then ... need to insert stubs.

True, but I think there's a special flag people need to use when
linking large userland apps. No idea if it could work for the kernel
in this case.

>> - HP100 driver cannot be compiled on systems without ISA support in
>> it's current state.

Matthew> I have it enabled on parisc without ISA or EISA.  More
Matthew> details, please.

Generous use of isa_memcpy_toio, isa_readb etc. Those functions ought
not be visible in a config where ISA is disabled.  Anybody who cares
enough about this could easily fix the HP100 driver to deal with it,
but it would require some reorganization of the code.

>> config HP100 tristate "HP 10/100VG PCLAN (ISA, EISA, PCI) support"
>> - depends on NET_ETHERNET && (ISA || EISA || PCI) + depends on
>> NET_ETHERNET && ISA || EISA help

Matthew> Also I think this is wrong.  Doesn't the precedence make this
Matthew> evaluate as (NET_ETHERNET && ISA) || EISA ?

Thats me being stupid, the parenthesis should have stayed.

Updated patch attached.

Cheers,
Jes

Various fixes to help allyesconfig on ia64:
- ARCH_FLATMEM_ENABLE is incompatible with NUMA
- atm code tries to include kernel headers to decide upon byteorder
  without allowing for said header file to include other files
- HP100 driver cannot be compiled on systems without ISA support in it's
  current state.
- Add check_signature() to include/asm-ia64/io.h
- Include vmalloc.h in mixart_hwdep.c which uses vmalloc

Signed-off-by: Jes Sorensen <jes@sgi.com>

----

 arch/ia64/Kconfig               |    1 +
 drivers/atm/Makefile            |    2 +-
 drivers/net/Kconfig             |    2 +-
 include/asm-ia64/io.h           |   15 +++++++++++++++
 sound/pci/mixart/mixart_hwdep.c |    1 +
 5 files changed, 19 insertions(+), 2 deletions(-)

Index: linux-2.6/arch/ia64/Kconfig
===================================================================
--- linux-2.6.orig/arch/ia64/Kconfig
+++ linux-2.6/arch/ia64/Kconfig
@@ -297,6 +297,7 @@
  	  See <file:Documentation/vm/numa> for more.
 
 config ARCH_FLATMEM_ENABLE
+	depends on !NUMA
 	def_bool y
 
 config ARCH_SPARSEMEM_ENABLE
Index: linux-2.6/drivers/atm/Makefile
===================================================================
--- linux-2.6.orig/drivers/atm/Makefile
+++ linux-2.6/drivers/atm/Makefile
@@ -41,7 +41,7 @@
   # guess the target endianess to choose the right PCA-200E firmware image
   ifeq ($(CONFIG_ATM_FORE200E_PCA_DEFAULT_FW),y)
     byteorder.h			:= include$(if $(patsubst $(srctree),,$(objtree)),2)/asm/byteorder.h
-    CONFIG_ATM_FORE200E_PCA_FW	:= $(obj)/pca200e$(if $(shell $(CC) -E -dM $(byteorder.h) | grep ' __LITTLE_ENDIAN '),.bin,_ecd.bin2)
+    CONFIG_ATM_FORE200E_PCA_FW	:= $(obj)/pca200e$(if $(shell $(CC) -I$(srctree)/include -E -dM $(byteorder.h) | grep ' __LITTLE_ENDIAN '),.bin,_ecd.bin2)
   endif
 endif
 
Index: linux-2.6/drivers/net/Kconfig
===================================================================
--- linux-2.6.orig/drivers/net/Kconfig
+++ linux-2.6/drivers/net/Kconfig
@@ -946,7 +946,7 @@
 
 config HP100
 	tristate "HP 10/100VG PCLAN (ISA, EISA, PCI) support"
-	depends on NET_ETHERNET && (ISA || EISA || PCI)
+	depends on NET_ETHERNET && (ISA || EISA)
 	help
 	  If you have a network (Ethernet) card of this type, say Y and read
 	  the Ethernet-HOWTO, available from
Index: linux-2.6/include/asm-ia64/io.h
===================================================================
--- linux-2.6.orig/include/asm-ia64/io.h
+++ linux-2.6/include/asm-ia64/io.h
@@ -435,6 +435,21 @@
 
 #define ioremap_nocache(o,s)	ioremap(o,s)
 
+static inline int
+check_signature(void __iomem *io_addr, const unsigned char *signature,
+		int length)
+{
+	int retval = 0;
+	do {
+		if (readb(io_addr) != *signature++)
+			goto out;
+		io_addr++;
+	} while (--length);
+	retval = 1;
+ out:
+	return retval;
+}
+
 # ifdef __KERNEL__
 
 /*
Index: linux-2.6/sound/pci/mixart/mixart_hwdep.c
===================================================================
--- linux-2.6.orig/sound/pci/mixart/mixart_hwdep.c
+++ linux-2.6/sound/pci/mixart/mixart_hwdep.c
@@ -24,6 +24,7 @@
 #include <linux/interrupt.h>
 #include <linux/pci.h>
 #include <linux/firmware.h>
+#include <linux/vmalloc.h>
 #include <asm/io.h>
 #include <sound/core.h>
 #include "mixart.h"
-
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