From 163f6876f5c3ff8215e900b93779e960a56b3694 Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Fri, 15 Aug 2008 00:40:22 -0700 Subject: kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE Rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE, because control page is used for not only code on some platform. For example in kexec jump, it is used for data and stack too. [akpm@linux-foundation.org: unbreak powerpc and arm, finish conversion] Signed-off-by: Huang Ying Cc: Pavel Machek Cc: "Rafael J. Wysocki" Cc: "Eric W. Biederman" Cc: Vivek Goyal Cc: Ingo Molnar Cc: Russell King Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/include/asm/kexec.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/include') diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h index acdcdc66f1b..3736d9b3328 100644 --- a/arch/powerpc/include/asm/kexec.h +++ b/arch/powerpc/include/asm/kexec.h @@ -22,7 +22,7 @@ #define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE #endif -#define KEXEC_CONTROL_CODE_SIZE 4096 +#define KEXEC_CONTROL_PAGE_SIZE 4096 /* The native architecture */ #ifdef __powerpc64__ -- cgit v1.2.3 From 3fadc52b2c9171b138b93f4a0121ceba67241b3b Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 12 Aug 2008 17:03:26 +1000 Subject: powerpc: Fix loss of vdso on fork on 32-bit When we fork, init_new_context() improperly resets the vdso_base of the new context to 0. That means that the new process loses access to the vdso for signal trampolines. The initialization should be unnecessary anyway as the context on a fresh mm should be 0 in the first place and binfmt_elf will initialize that value for a newly loaded process. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/powerpc/include/asm/mmu_context.h | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/powerpc/include') diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h index 9102b8bf0ea..6b993ef452f 100644 --- a/arch/powerpc/include/asm/mmu_context.h +++ b/arch/powerpc/include/asm/mmu_context.h @@ -147,7 +147,6 @@ static inline void get_mmu_context(struct mm_struct *mm) static inline int init_new_context(struct task_struct *t, struct mm_struct *mm) { mm->context.id = NO_CONTEXT; - mm->context.vdso_base = 0; return 0; } -- cgit v1.2.3 From 22b8f9ee4a91638a4c8f57e957a91cf49788332a Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 15 Aug 2008 17:11:31 +1000 Subject: powerpc: Fix lockdep IRQ tracing bug A small bogon sneaked into the ppc64 lockdep support. A test is branching slightly off causing a clobbered register value to overwrite the irq state under some circumstances. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/powerpc/include/asm/irqflags.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'arch/powerpc/include') diff --git a/arch/powerpc/include/asm/irqflags.h b/arch/powerpc/include/asm/irqflags.h index 17ba3a881bf..5f68ecfdf51 100644 --- a/arch/powerpc/include/asm/irqflags.h +++ b/arch/powerpc/include/asm/irqflags.h @@ -20,7 +20,7 @@ #define TRACE_ENABLE_INTS bl .trace_hardirqs_on #define TRACE_DISABLE_INTS bl .trace_hardirqs_off #define TRACE_AND_RESTORE_IRQ_PARTIAL(en,skip) \ - cmpdi en, 0; \ + cmpdi en,0; \ bne 95f; \ stb en,PACASOFTIRQEN(r13); \ bl .trace_hardirqs_off; \ @@ -29,7 +29,8 @@ li en,1; #define TRACE_AND_RESTORE_IRQ(en) \ TRACE_AND_RESTORE_IRQ_PARTIAL(en,96f); \ -96: stb en,PACASOFTIRQEN(r13) + stb en,PACASOFTIRQEN(r13); \ +96: #else #define TRACE_ENABLE_INTS #define TRACE_DISABLE_INTS -- cgit v1.2.3 From 81f14997e8e8a10eb75ca593674d2b0c94129a21 Mon Sep 17 00:00:00 2001 From: Robert Jennings Date: Sat, 16 Aug 2008 05:07:31 +1000 Subject: powerpc: Make CMO paging space pool ID and page size available During platform setup, save off the primary/secondary paging space pool IDs and the page size. Added accessors in hvcall.h for these variables. This is needed for a subsequent fix. Submitted-by: Robert Jennings Signed-off-by: Paul Mackerras --- arch/powerpc/include/asm/hvcall.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'arch/powerpc/include') diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h index fbe2932fa9e..6251a4b10be 100644 --- a/arch/powerpc/include/asm/hvcall.h +++ b/arch/powerpc/include/asm/hvcall.h @@ -291,6 +291,28 @@ struct hvcall_mpp_data { }; int h_get_mpp(struct hvcall_mpp_data *); + +#ifdef CONFIG_PPC_PSERIES +extern int CMO_PrPSP; +extern int CMO_SecPSP; +extern unsigned long CMO_PageSize; + +static inline int cmo_get_primary_psp(void) +{ + return CMO_PrPSP; +} + +static inline int cmo_get_secondary_psp(void) +{ + return CMO_SecPSP; +} + +static inline unsigned long cmo_get_page_size(void) +{ + return CMO_PageSize; +} +#endif /* CONFIG_PPC_PSERIES */ + #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_HVCALL_H */ -- cgit v1.2.3 From 50d0b17645a26d2877c9d5538114498c3f82adac Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 17 Aug 2008 03:57:30 +1000 Subject: powerpc: Use generic compat_sys_old_readdir Use the generic compat_sys_old_readdir instead of the powerpc one which is almost the same except for the almost complete lack of error handling. Note that we can't just use SYSCALL() in systbl.h because the native syscall is named old_readdir, not sys_old_readdir. Signed-off-by: Christoph Hellwig Signed-off-by: Paul Mackerras --- arch/powerpc/include/asm/systbl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/include') diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h index e084272ed1c..f6cc7a43b4f 100644 --- a/arch/powerpc/include/asm/systbl.h +++ b/arch/powerpc/include/asm/systbl.h @@ -92,7 +92,7 @@ COMPAT_SYS_SPU(readlink) SYSCALL(uselib) SYSCALL(swapon) SYSCALL(reboot) -SYSX(sys_ni_syscall,old32_readdir,old_readdir) +SYSX(sys_ni_syscall,compat_sys_old_readdir,old_readdir) SYSCALL_SPU(mmap) SYSCALL_SPU(munmap) SYSCALL_SPU(truncate) -- cgit v1.2.3 From 1f49060adcc1817337af95392bdf8a6205abffa0 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Mon, 18 Aug 2008 21:40:03 +0200 Subject: cleanup powerpc/include/asm/ide.h This patch removes code that became unused through IDE changes and the arch/ppc/ removal. Signed-off-by: Adrian Bunk Signed-off-by: Bartlomiej Zolnierkiewicz --- arch/powerpc/include/asm/ide.h | 43 +----------------------------------------- 1 file changed, 1 insertion(+), 42 deletions(-) (limited to 'arch/powerpc/include') diff --git a/arch/powerpc/include/asm/ide.h b/arch/powerpc/include/asm/ide.h index 048480e340f..da01b20aea5 100644 --- a/arch/powerpc/include/asm/ide.h +++ b/arch/powerpc/include/asm/ide.h @@ -6,12 +6,7 @@ #ifndef _ASM_POWERPC_IDE_H #define _ASM_POWERPC_IDE_H -#ifdef __KERNEL__ - -#ifndef __powerpc64__ -#include -#include -#endif +#include #include #define __ide_mm_insw(p, a, c) readsw((void __iomem *)(p), (a), (c)) @@ -19,40 +14,4 @@ #define __ide_mm_outsw(p, a, c) writesw((void __iomem *)(p), (a), (c)) #define __ide_mm_outsl(p, a, c) writesl((void __iomem *)(p), (a), (c)) -#ifndef __powerpc64__ -#include - -/* FIXME: use ide_platform host driver */ -static __inline__ int ide_default_irq(unsigned long base) -{ -#ifdef CONFIG_PPLUS - switch (base) { - case 0x1f0: return 14; - case 0x170: return 15; - } -#endif - return 0; -} - -/* FIXME: use ide_platform host driver */ -static __inline__ unsigned long ide_default_io_base(int index) -{ -#ifdef CONFIG_PPLUS - switch (index) { - case 0: return 0x1f0; - case 1: return 0x170; - } -#endif - return 0; -} - -#ifdef CONFIG_BLK_DEV_MPC8xx_IDE -#define IDE_ARCH_ACK_INTR 1 -#define ide_ack_intr(hwif) ((hwif)->ack_intr ? (hwif)->ack_intr(hwif) : 1) -#endif - -#endif /* __powerpc64__ */ - -#endif /* __KERNEL__ */ - #endif /* _ASM_POWERPC_IDE_H */ -- cgit v1.2.3 From f4f62301c6f42127b7462274abfcbc278f84d59a Mon Sep 17 00:00:00 2001 From: Heiko Schocher Date: Mon, 25 Aug 2008 20:20:53 -0500 Subject: fs_enet: Fix SCC Ethernet on CPM2, and crash in fs_enet_rx_napi() Signed-off-by: Heiko Schocher Signed-off-by: Vitaly Bordug Signed-off-by: Kumar Gala Signed-off-by: Jeff Garzik --- arch/powerpc/include/asm/cpm2.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/powerpc/include') diff --git a/arch/powerpc/include/asm/cpm2.h b/arch/powerpc/include/asm/cpm2.h index 2a6fa0183ac..0f5e8ff59a8 100644 --- a/arch/powerpc/include/asm/cpm2.h +++ b/arch/powerpc/include/asm/cpm2.h @@ -337,6 +337,11 @@ typedef struct scc_param { uint scc_tcrc; /* Internal */ } sccp_t; +/* Function code bits. +*/ +#define SCC_EB ((u_char) 0x10) /* Set big endian byte order */ +#define SCC_GBL ((u_char) 0x20) /* Snooping enabled */ + /* CPM Ethernet through SCC1. */ typedef struct scc_enet { -- cgit v1.2.3 From 94ee815c05c9387931e549d83312d30009ed86e9 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 3 Sep 2008 13:12:05 +1000 Subject: powerpc: Fix build error with 64K pages and !hugetlbfs HAVE_ARCH_UNMAPPED_AREA and HAVE_ARCH_UNMAPPED_AREA_TOPDOWN must be defined whenever CONFIG_PPC_MM_SLICES is enabled, not just when CONFIG_HUGETLB_PAGE is. They used to be always defined together but this is no longer the case since 3a8247cc2c856930f34eafce33f6a039227ee175 ("powerpc: Only demote individual slices rather than whole process"). Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/powerpc/include/asm/pgtable-ppc64.h | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'arch/powerpc/include') diff --git a/arch/powerpc/include/asm/pgtable-ppc64.h b/arch/powerpc/include/asm/pgtable-ppc64.h index db0b8f3b880..4597c491e9b 100644 --- a/arch/powerpc/include/asm/pgtable-ppc64.h +++ b/arch/powerpc/include/asm/pgtable-ppc64.h @@ -153,12 +153,10 @@ #define __S110 PAGE_SHARED_X #define __S111 PAGE_SHARED_X -#ifdef CONFIG_HUGETLB_PAGE - +#ifdef CONFIG_PPC_MM_SLICES #define HAVE_ARCH_UNMAPPED_AREA #define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN - -#endif +#endif /* CONFIG_PPC_MM_SLICES */ #ifndef __ASSEMBLY__ -- cgit v1.2.3