From cd95842ca0ffb0e3df3b459832a60f9f4544ed9e Mon Sep 17 00:00:00 2001 From: Markus Gutschke Date: Sun, 30 Apr 2006 15:34:29 +0100 Subject: [ARM] 3486/1: Mark memory as clobbered by the ARM _syscallX() macros Patch from Markus Gutschke In order to prevent gcc from making incorrect optimizations, all asm() statements that define system calls should report memory as clobbered. Recent versions of the headers for i386 have been changed accordingly, but the ARM headers are still defective. This patch fixes the bug tracked at http://bugzilla.kernel.org/show_bug.cgi?id=6205 Signed-off-by: Markus Gutschke Signed-off-by: Russell King --- include/asm-arm/unistd.h | 21 ++++++++++++++------- 1 file changed, 14 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/include/asm-arm/unistd.h b/include/asm-arm/unistd.h index ee8dfea549..26f2f4828e 100644 --- a/include/asm-arm/unistd.h +++ b/include/asm-arm/unistd.h @@ -410,7 +410,8 @@ type name(void) { \ __asm__ __volatile__ ( \ __syscall(name) \ : "=r" (__res_r0) \ - : __SYS_REG_LIST() ); \ + : __SYS_REG_LIST() \ + : "memory" ); \ __res = __res_r0; \ __syscall_return(type,__res); \ } @@ -424,7 +425,8 @@ type name(type1 arg1) { \ __asm__ __volatile__ ( \ __syscall(name) \ : "=r" (__res_r0) \ - : __SYS_REG_LIST( "0" (__r0) ) ); \ + : __SYS_REG_LIST( "0" (__r0) ) \ + : "memory" ); \ __res = __res_r0; \ __syscall_return(type,__res); \ } @@ -439,7 +441,8 @@ type name(type1 arg1,type2 arg2) { \ __asm__ __volatile__ ( \ __syscall(name) \ : "=r" (__res_r0) \ - : __SYS_REG_LIST( "0" (__r0), "r" (__r1) ) ); \ + : __SYS_REG_LIST( "0" (__r0), "r" (__r1) ) \ + : "memory" ); \ __res = __res_r0; \ __syscall_return(type,__res); \ } @@ -456,7 +459,8 @@ type name(type1 arg1,type2 arg2,type3 arg3) { \ __asm__ __volatile__ ( \ __syscall(name) \ : "=r" (__res_r0) \ - : __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2) ) ); \ + : __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2) ) \ + : "memory" ); \ __res = __res_r0; \ __syscall_return(type,__res); \ } @@ -474,7 +478,8 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \ __asm__ __volatile__ ( \ __syscall(name) \ : "=r" (__res_r0) \ - : __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2), "r" (__r3) ) ); \ + : __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2), "r" (__r3) ) \ + : "memory" ); \ __res = __res_r0; \ __syscall_return(type,__res); \ } @@ -494,7 +499,8 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) { \ __syscall(name) \ : "=r" (__res_r0) \ : __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2), \ - "r" (__r3), "r" (__r4) ) ); \ + "r" (__r3), "r" (__r4) ) \ + : "memory" ); \ __res = __res_r0; \ __syscall_return(type,__res); \ } @@ -514,7 +520,8 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6 __syscall(name) \ : "=r" (__res_r0) \ : __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2), \ - "r" (__r3), "r" (__r4), "r" (__r5) ) ); \ + "r" (__r3), "r" (__r4), "r" (__r5) ) \ + : "memory" ); \ __res = __res_r0; \ __syscall_return(type,__res); \ } -- cgit v1.2.2 From 76bbb00288e569e7bd9ec18f45e4f814352260dd Mon Sep 17 00:00:00 2001 From: Deepak Saxena Date: Sun, 30 Apr 2006 15:34:29 +0100 Subject: [ARM] 3487/1: IXP4xx: Support non-PCI systems Patch from Deepak Saxena This patch allows for the addition of IXP4xx systems that do not make use of the PCI interface by moving the CONFIG_PCI symbol selection to be platform-specific instead of for all of IXP4xx. If at least one machine with PCI support is built, the PCI code will be compiled in, but when building !PCI, this will drastically shrink the kernel size. Signed-off-by: Deepak Saxena Signed-off-by: Russell King --- include/asm-arm/arch-ixp4xx/io.h | 7 +++++++ include/asm-arm/arch-ixp4xx/memory.h | 2 +- 2 files changed, 8 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-arm/arch-ixp4xx/io.h b/include/asm-arm/arch-ixp4xx/io.h index 942b622455..b59520e56f 100644 --- a/include/asm-arm/arch-ixp4xx/io.h +++ b/include/asm-arm/arch-ixp4xx/io.h @@ -260,6 +260,12 @@ out: #endif +#ifndef CONFIG_PCI + +#define __io(v) v + +#else + /* * IXP4xx does not have a transparent cpu -> PCI I/O translation * window. Instead, it has a set of registers that must be tweaked @@ -578,6 +584,7 @@ __ixp4xx_iowrite32_rep(void __iomem *addr, const void *vaddr, u32 count) #define ioport_map(port, nr) ((void __iomem*)(port + PIO_OFFSET)) #define ioport_unmap(addr) +#endif // !CONFIG_PCI #endif // __ASM_ARM_ARCH_IO_H diff --git a/include/asm-arm/arch-ixp4xx/memory.h b/include/asm-arm/arch-ixp4xx/memory.h index ee211d28a3..af9667b57a 100644 --- a/include/asm-arm/arch-ixp4xx/memory.h +++ b/include/asm-arm/arch-ixp4xx/memory.h @@ -14,7 +14,7 @@ */ #define PHYS_OFFSET UL(0x00000000) -#ifndef __ASSEMBLY__ +#if !defined(__ASSEMBLY__) && defined(CONFIG_PCI) void ixp4xx_adjust_zones(int node, unsigned long *size, unsigned long *holes); -- cgit v1.2.2 From 5b802344357338a4d645beac8ca97470bcbe3542 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Thu, 4 May 2006 14:07:42 +0100 Subject: [ARM] 3490/1: i.MX: move uart resources to board files Patch from Sascha Hauer This patch moves the i.MX uart resources and the gpio pin setup to the board files. This allows the boards to decide how many internal uarts are connected to the outside world and whether they use rts/cts or not. Signed-off-by: Sascha Hauer Signed-off-by: Russell King --- include/asm-arm/arch-imx/imx-uart.h | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 include/asm-arm/arch-imx/imx-uart.h (limited to 'include') diff --git a/include/asm-arm/arch-imx/imx-uart.h b/include/asm-arm/arch-imx/imx-uart.h new file mode 100644 index 0000000000..3a685e1780 --- /dev/null +++ b/include/asm-arm/arch-imx/imx-uart.h @@ -0,0 +1,10 @@ +#ifndef ASMARM_ARCH_UART_H +#define ASMARM_ARCH_UART_H + +#define IMXUART_HAVE_RTSCTS (1<<0) + +struct imxuart_platform_data { + unsigned int flags; +}; + +#endif -- cgit v1.2.2