From 32974ad4907cdde6c9de612cd1b2ee0568fb9409 Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Mon, 8 Feb 2010 10:42:17 -0800 Subject: [IA64] Remove COMPAT_IA32 support This has been broken since May 2008 when Al Viro killed altroot support. Since nobody has complained, it would appear that there are no users of this code (A plausible theory since the main OSVs that support ia64 prefer to use the IA32-EL software emulation). Signed-off-by: Tony Luck --- arch/ia64/include/asm/ia32.h | 40 ------------------- arch/ia64/include/asm/processor.h | 46 ---------------------- arch/ia64/include/asm/syscall.h | 81 --------------------------------------- arch/ia64/include/asm/system.h | 11 +----- arch/ia64/include/asm/unistd.h | 14 ------- 5 files changed, 1 insertion(+), 191 deletions(-) delete mode 100644 arch/ia64/include/asm/ia32.h (limited to 'arch/ia64/include') diff --git a/arch/ia64/include/asm/ia32.h b/arch/ia64/include/asm/ia32.h deleted file mode 100644 index 2390ee145aa1..000000000000 --- a/arch/ia64/include/asm/ia32.h +++ /dev/null @@ -1,40 +0,0 @@ -#ifndef _ASM_IA64_IA32_H -#define _ASM_IA64_IA32_H - - -#include -#include - -#define IA32_NR_syscalls 285 /* length of syscall table */ -#define IA32_PAGE_SHIFT 12 /* 4KB pages */ - -#ifndef __ASSEMBLY__ - -# ifdef CONFIG_IA32_SUPPORT - -#define IA32_PAGE_OFFSET 0xc0000000 - -extern void ia32_cpu_init (void); -extern void ia32_mem_init (void); -extern void ia32_gdt_init (void); -extern int ia32_exception (struct pt_regs *regs, unsigned long isr); -extern int ia32_intercept (struct pt_regs *regs, unsigned long isr); -extern int ia32_clone_tls (struct task_struct *child, struct pt_regs *childregs); - -# endif /* !CONFIG_IA32_SUPPORT */ - -/* Declare this unconditionally, so we don't get warnings for unreachable code. */ -extern int ia32_setup_frame1 (int sig, struct k_sigaction *ka, siginfo_t *info, - sigset_t *set, struct pt_regs *regs); -#if PAGE_SHIFT > IA32_PAGE_SHIFT -extern int ia32_copy_ia64_partial_page_list(struct task_struct *, - unsigned long); -extern void ia32_drop_ia64_partial_page_list(struct task_struct *); -#else -# define ia32_copy_ia64_partial_page_list(a1, a2) 0 -# define ia32_drop_ia64_partial_page_list(a1) do { ; } while (0) -#endif - -#endif /* !__ASSEMBLY__ */ - -#endif /* _ASM_IA64_IA32_H */ diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h index 7fa90f73f6be..348e44d08ce3 100644 --- a/arch/ia64/include/asm/processor.h +++ b/arch/ia64/include/asm/processor.h @@ -270,23 +270,6 @@ typedef struct { (int __user *) (addr)); \ }) -#ifdef CONFIG_IA32_SUPPORT -struct desc_struct { - unsigned int a, b; -}; - -#define desc_empty(desc) (!((desc)->a | (desc)->b)) -#define desc_equal(desc1, desc2) (((desc1)->a == (desc2)->a) && ((desc1)->b == (desc2)->b)) - -#define GDT_ENTRY_TLS_ENTRIES 3 -#define GDT_ENTRY_TLS_MIN 6 -#define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1) - -#define TLS_SIZE (GDT_ENTRY_TLS_ENTRIES * 8) - -struct ia64_partial_page_list; -#endif - struct thread_struct { __u32 flags; /* various thread flags (see IA64_THREAD_*) */ /* writing on_ustack is performance-critical, so it's worth spending 8 bits on it... */ @@ -298,29 +281,6 @@ struct thread_struct { __u64 rbs_bot; /* the base address for the RBS */ int last_fph_cpu; /* CPU that may hold the contents of f32-f127 */ -#ifdef CONFIG_IA32_SUPPORT - __u64 eflag; /* IA32 EFLAGS reg */ - __u64 fsr; /* IA32 floating pt status reg */ - __u64 fcr; /* IA32 floating pt control reg */ - __u64 fir; /* IA32 fp except. instr. reg */ - __u64 fdr; /* IA32 fp except. data reg */ - __u64 old_k1; /* old value of ar.k1 */ - __u64 old_iob; /* old IOBase value */ - struct ia64_partial_page_list *ppl; /* partial page list for 4K page size issue */ - /* cached TLS descriptors. */ - struct desc_struct tls_array[GDT_ENTRY_TLS_ENTRIES]; - -# define INIT_THREAD_IA32 .eflag = 0, \ - .fsr = 0, \ - .fcr = 0x17800000037fULL, \ - .fir = 0, \ - .fdr = 0, \ - .old_k1 = 0, \ - .old_iob = 0, \ - .ppl = NULL, -#else -# define INIT_THREAD_IA32 -#endif /* CONFIG_IA32_SUPPORT */ #ifdef CONFIG_PERFMON void *pfm_context; /* pointer to detailed PMU context */ unsigned long pfm_needs_checking; /* when >0, pending perfmon work on kernel exit */ @@ -342,7 +302,6 @@ struct thread_struct { .rbs_bot = STACK_TOP - DEFAULT_USER_STACK_SIZE, \ .task_size = DEFAULT_TASK_SIZE, \ .last_fph_cpu = -1, \ - INIT_THREAD_IA32 \ INIT_THREAD_PM \ .dbr = {0, }, \ .ibr = {0, }, \ @@ -485,11 +444,6 @@ extern void __ia64_load_fpu (struct ia64_fpreg *fph); extern void ia64_save_debug_regs (unsigned long *save_area); extern void ia64_load_debug_regs (unsigned long *save_area); -#ifdef CONFIG_IA32_SUPPORT -extern void ia32_save_state (struct task_struct *task); -extern void ia32_load_state (struct task_struct *task); -#endif - #define ia64_fph_enable() do { ia64_rsm(IA64_PSR_DFH); ia64_srlz_d(); } while (0) #define ia64_fph_disable() do { ia64_ssm(IA64_PSR_DFH); ia64_srlz_d(); } while (0) diff --git a/arch/ia64/include/asm/syscall.h b/arch/ia64/include/asm/syscall.h index 2f758a42f94b..a7ff1c6ab068 100644 --- a/arch/ia64/include/asm/syscall.h +++ b/arch/ia64/include/asm/syscall.h @@ -22,33 +22,18 @@ static inline long syscall_get_nr(struct task_struct *task, if ((long)regs->cr_ifs < 0) /* Not a syscall */ return -1; -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(regs)) - return regs->r1; -#endif - return regs->r15; } static inline void syscall_rollback(struct task_struct *task, struct pt_regs *regs) { -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(regs)) - regs->r8 = regs->r1; -#endif - /* do nothing */ } static inline long syscall_get_error(struct task_struct *task, struct pt_regs *regs) { -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(regs)) - return regs->r8; -#endif - return regs->r10 == -1 ? regs->r8:0; } @@ -62,13 +47,6 @@ static inline void syscall_set_return_value(struct task_struct *task, struct pt_regs *regs, int error, long val) { -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(regs)) { - regs->r8 = (long) error ? error : val; - return; - } -#endif - if (error) { /* error < 0, but ia64 uses > 0 return value */ regs->r8 = -error; @@ -89,37 +67,6 @@ static inline void syscall_get_arguments(struct task_struct *task, { BUG_ON(i + n > 6); -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(regs)) { - switch (i + n) { - case 6: - if (!n--) break; - *args++ = regs->r13; - case 5: - if (!n--) break; - *args++ = regs->r15; - case 4: - if (!n--) break; - *args++ = regs->r14; - case 3: - if (!n--) break; - *args++ = regs->r10; - case 2: - if (!n--) break; - *args++ = regs->r9; - case 1: - if (!n--) break; - *args++ = regs->r11; - case 0: - if (!n--) break; - default: - BUG(); - break; - } - - return; - } -#endif ia64_syscall_get_set_arguments(task, regs, i, n, args, 0); } @@ -130,34 +77,6 @@ static inline void syscall_set_arguments(struct task_struct *task, { BUG_ON(i + n > 6); -#ifdef CONFIG_IA32_SUPPORT - if (IS_IA32_PROCESS(regs)) { - switch (i + n) { - case 6: - if (!n--) break; - regs->r13 = *args++; - case 5: - if (!n--) break; - regs->r15 = *args++; - case 4: - if (!n--) break; - regs->r14 = *args++; - case 3: - if (!n--) break; - regs->r10 = *args++; - case 2: - if (!n--) break; - regs->r9 = *args++; - case 1: - if (!n--) break; - regs->r11 = *args++; - case 0: - if (!n--) break; - } - - return; - } -#endif ia64_syscall_get_set_arguments(task, regs, i, n, args, 1); } #endif /* _ASM_SYSCALL_H */ diff --git a/arch/ia64/include/asm/system.h b/arch/ia64/include/asm/system.h index 927a381c20ca..9f342a574ce8 100644 --- a/arch/ia64/include/asm/system.h +++ b/arch/ia64/include/asm/system.h @@ -191,15 +191,6 @@ do { \ #ifdef __KERNEL__ -#ifdef CONFIG_IA32_SUPPORT -# define IS_IA32_PROCESS(regs) (ia64_psr(regs)->is != 0) -#else -# define IS_IA32_PROCESS(regs) 0 -struct task_struct; -static inline void ia32_save_state(struct task_struct *t __attribute__((unused))){} -static inline void ia32_load_state(struct task_struct *t __attribute__((unused))){} -#endif - /* * Context switch from one thread to another. If the two threads have * different address spaces, schedule() has already taken care of @@ -233,7 +224,7 @@ extern void ia64_account_on_switch (struct task_struct *prev, struct task_struct #define IA64_HAS_EXTRA_STATE(t) \ ((t)->thread.flags & (IA64_THREAD_DBG_VALID|IA64_THREAD_PM_VALID) \ - || IS_IA32_PROCESS(task_pt_regs(t)) || PERFMON_IS_SYSWIDE()) + || PERFMON_IS_SYSWIDE()) #define __switch_to(prev,next,last) do { \ IA64_ACCOUNT_ON_SWITCH(prev, next); \ diff --git a/arch/ia64/include/asm/unistd.h b/arch/ia64/include/asm/unistd.h index 10a8f21ca9e3..bb8b0fff32b3 100644 --- a/arch/ia64/include/asm/unistd.h +++ b/arch/ia64/include/asm/unistd.h @@ -335,20 +335,6 @@ #define __ARCH_WANT_SYS_RT_SIGACTION #define __ARCH_WANT_SYS_RT_SIGSUSPEND -#ifdef CONFIG_IA32_SUPPORT -# define __ARCH_WANT_SYS_FADVISE64 -# define __ARCH_WANT_SYS_GETPGRP -# define __ARCH_WANT_SYS_LLSEEK -# define __ARCH_WANT_SYS_NICE -# define __ARCH_WANT_SYS_OLD_GETRLIMIT -# define __ARCH_WANT_SYS_OLDUMOUNT -# define __ARCH_WANT_SYS_PAUSE -# define __ARCH_WANT_SYS_SIGPENDING -# define __ARCH_WANT_SYS_SIGPROCMASK -# define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND -# define __ARCH_WANT_COMPAT_SYS_TIME -#endif - #if !defined(__ASSEMBLY__) && !defined(ASSEMBLER) #include -- cgit v1.2.3 From 4b3073e1c53a256275f1079c0fbfbe85883d9275 Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 18 Dec 2009 16:40:18 +0000 Subject: MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself On VIVT ARM, when we have multiple shared mappings of the same file in the same MM, we need to ensure that we have coherency across all copies. We do this via make_coherent() by making the pages uncacheable. This used to work fine, until we allowed highmem with highpte - we now have a page table which is mapped as required, and is not available for modification via update_mmu_cache(). Ralf Beache suggested getting rid of the PTE value passed to update_mmu_cache(): On MIPS update_mmu_cache() calls __update_tlb() which walks pagetables to construct a pointer to the pte again. Passing a pte_t * is much more elegant. Maybe we might even replace the pte argument with the pte_t? Ben Herrenschmidt would also like the pte pointer for PowerPC: Passing the ptep in there is exactly what I want. I want that -instead- of the PTE value, because I have issue on some ppc cases, for I$/D$ coherency, where set_pte_at() may decide to mask out the _PAGE_EXEC. So, pass in the mapped page table pointer into update_mmu_cache(), and remove the PTE value, updating all implementations and call sites to suit. Includes a fix from Stephen Rothwell: sparc: fix fallout from update_mmu_cache API change Signed-off-by: Stephen Rothwell Acked-by: Benjamin Herrenschmidt Signed-off-by: Russell King --- arch/ia64/include/asm/pgtable.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/ia64/include') diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h index 69bf13857a9f..c3286f42e501 100644 --- a/arch/ia64/include/asm/pgtable.h +++ b/arch/ia64/include/asm/pgtable.h @@ -462,7 +462,7 @@ pte_same (pte_t a, pte_t b) return pte_val(a) == pte_val(b); } -#define update_mmu_cache(vma, address, pte) do { } while (0) +#define update_mmu_cache(vma, address, ptep) do { } while (0) extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; extern void paging_init (void); -- cgit v1.2.3 From d868080d2a1c95526cb01e3d0c14096721cbb87a Mon Sep 17 00:00:00 2001 From: Alex Chiang Date: Thu, 25 Feb 2010 14:09:52 -0700 Subject: [IA64] Only build arch/ia64/kernel/acpi.o when CONFIG_ACPI The following commit broke the ia64 sim_defconfig build: 3b2b84c0b81108a9a869a88bf2beeb5a95d81dd1 ACPI: processor: driver doesn't need to evaluate _PDC This is because it added: +#include To arch/ia64/kernel/acpi.c. Unfortunately, the ia64_simdefconfig does not turn on CONFIG_ACPI, and we get build errors. The fix described in $subject seems to be the most sensible way to untangle the mess. The other issue is that acpi_get_sysname() is required for all configs, most of which define CONFIG_ACPI, but are not CONFIG_IA64_GENERIC. Turn it into an inline to cover the "non generic" ia64 configs; to prevent a duplicate definition build error, we need to wrap the definition in acpi.o inside an #ifdef. Finally, move the pm_idle and pm_power_off exports into process.c (which is always built), similar to other architectures, and allow the sim defconfig to link. Signed-off-by: Alex Chiang Signed-off-by: Tony Luck --- arch/ia64/include/asm/acpi.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'arch/ia64/include') diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h index e97b255d97bc..d3b48305a08f 100644 --- a/arch/ia64/include/asm/acpi.h +++ b/arch/ia64/include/asm/acpi.h @@ -99,7 +99,32 @@ ia64_acpi_release_global_lock (unsigned int *lock) #define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */ static inline void disable_acpi(void) { } +#ifdef CONFIG_IA64_GENERIC const char *acpi_get_sysname (void); +#else +static inline const char *acpi_get_sysname (void) +{ +# if defined (CONFIG_IA64_HP_SIM) + return "hpsim"; +# elif defined (CONFIG_IA64_HP_ZX1) + return "hpzx1"; +# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB) + return "hpzx1_swiotlb"; +# elif defined (CONFIG_IA64_SGI_SN2) + return "sn2"; +# elif defined (CONFIG_IA64_SGI_UV) + return "uv"; +# elif defined (CONFIG_IA64_DIG) + return "dig"; +# elif defined (CONFIG_IA64_XEN_GUEST) + return "xen"; +# elif defined(CONFIG_IA64_DIG_VTD) + return "dig_vtd"; +# else +# error Unknown platform. Fix acpi.c. +# endif +} +#endif int acpi_request_vector (u32 int_type); int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); -- cgit v1.2.3 From 3a095a97e17897e8a8d7c3c995cb206f801c2477 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Fri, 26 Feb 2010 09:43:51 +0900 Subject: [IA64] use asm-generic/scatterlist.h IA64's scatterlist structure is identical to the generic one. Signed-off-by: FUJITA Tomonori Signed-off-by: Tony Luck --- arch/ia64/include/asm/scatterlist.h | 24 +----------------------- 1 file changed, 1 insertion(+), 23 deletions(-) (limited to 'arch/ia64/include') diff --git a/arch/ia64/include/asm/scatterlist.h b/arch/ia64/include/asm/scatterlist.h index d6f57874041d..d8e98961dec7 100644 --- a/arch/ia64/include/asm/scatterlist.h +++ b/arch/ia64/include/asm/scatterlist.h @@ -1,25 +1,6 @@ #ifndef _ASM_IA64_SCATTERLIST_H #define _ASM_IA64_SCATTERLIST_H -/* - * Modified 1998-1999, 2001-2002, 2004 - * David Mosberger-Tang , Hewlett-Packard Co - */ - -#include - -struct scatterlist { -#ifdef CONFIG_DEBUG_SG - unsigned long sg_magic; -#endif - unsigned long page_link; - unsigned int offset; - unsigned int length; /* buffer length */ - - dma_addr_t dma_address; - unsigned int dma_length; -}; - /* * It used to be that ISA_DMA_THRESHOLD had something to do with the * DMA-limits of ISA-devices. Nowadays, its only remaining use (apart @@ -30,9 +11,6 @@ struct scatterlist { */ #define ISA_DMA_THRESHOLD 0xffffffff -#define sg_dma_len(sg) ((sg)->dma_length) -#define sg_dma_address(sg) ((sg)->dma_address) - -#define ARCH_HAS_SG_CHAIN +#include #endif /* _ASM_IA64_SCATTERLIST_H */ -- cgit v1.2.3