From b4b7ff4b08e691656c9d77c758fc355833128ac0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 20 Jan 2016 14:01:31 -0300 Subject: Linux-libre 4.4-gnu --- arch/tile/Kconfig | 11 +++++------ arch/tile/include/asm/atomic.h | 2 +- arch/tile/include/asm/atomic_64.h | 6 +++--- arch/tile/include/asm/highmem.h | 1 - arch/tile/include/asm/page.h | 8 +++++--- arch/tile/include/uapi/asm/mman.h | 1 + arch/tile/kernel/perf_event.c | 2 +- arch/tile/mm/highmem.c | 12 ------------ 8 files changed, 16 insertions(+), 27 deletions(-) (limited to 'arch/tile') diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 106c21bd7..8ec7a4599 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -176,8 +176,6 @@ config NR_CPUS smaller kernel memory footprint results from using a smaller value on chips with fewer tiles. -if TILEGX - choice prompt "Kernel page size" default PAGE_SIZE_64KB @@ -188,8 +186,11 @@ choice connections, etc., it may be better to select 16KB, which uses memory more efficiently at some cost in TLB performance. - Note that this option is TILE-Gx specific; currently - TILEPro page size is set by rebuilding the hypervisor. + Note that for TILEPro, you must also rebuild the hypervisor + with a matching page size. + +config PAGE_SIZE_4KB + bool "4KB" if TILEPRO config PAGE_SIZE_16KB bool "16KB" @@ -199,8 +200,6 @@ config PAGE_SIZE_64KB endchoice -endif - source "kernel/Kconfig.hz" config KEXEC diff --git a/arch/tile/include/asm/atomic.h b/arch/tile/include/asm/atomic.h index 709798460..9fc0107a9 100644 --- a/arch/tile/include/asm/atomic.h +++ b/arch/tile/include/asm/atomic.h @@ -34,7 +34,7 @@ */ static inline int atomic_read(const atomic_t *v) { - return ACCESS_ONCE(v->counter); + return READ_ONCE(v->counter); } /** diff --git a/arch/tile/include/asm/atomic_64.h b/arch/tile/include/asm/atomic_64.h index 096a56d6e..51cabc26e 100644 --- a/arch/tile/include/asm/atomic_64.h +++ b/arch/tile/include/asm/atomic_64.h @@ -24,7 +24,7 @@ /* First, the 32-bit atomic ops that are "real" on our 64-bit platform. */ -#define atomic_set(v, i) ((v)->counter = (i)) +#define atomic_set(v, i) WRITE_ONCE((v)->counter, (i)) /* * The smp_mb() operations throughout are to support the fact that @@ -82,8 +82,8 @@ static inline void atomic_xor(int i, atomic_t *v) #define ATOMIC64_INIT(i) { (i) } -#define atomic64_read(v) ((v)->counter) -#define atomic64_set(v, i) ((v)->counter = (i)) +#define atomic64_read(v) READ_ONCE((v)->counter) +#define atomic64_set(v, i) WRITE_ONCE((v)->counter, (i)) static inline void atomic64_add(long i, atomic64_t *v) { diff --git a/arch/tile/include/asm/highmem.h b/arch/tile/include/asm/highmem.h index fc8429a31..979579b38 100644 --- a/arch/tile/include/asm/highmem.h +++ b/arch/tile/include/asm/highmem.h @@ -63,7 +63,6 @@ void *kmap_atomic(struct page *page); void __kunmap_atomic(void *kvaddr); void *kmap_atomic_pfn(unsigned long pfn); void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot); -struct page *kmap_atomic_to_page(void *ptr); void *kmap_atomic_prot(struct page *page, pgprot_t prot); void kmap_atomic_fix_kpte(struct page *page, int finished); diff --git a/arch/tile/include/asm/page.h b/arch/tile/include/asm/page.h index a213a8d84..8eca6a0e1 100644 --- a/arch/tile/include/asm/page.h +++ b/arch/tile/include/asm/page.h @@ -20,15 +20,17 @@ #include /* PAGE_SHIFT and HPAGE_SHIFT determine the page sizes. */ -#if defined(CONFIG_PAGE_SIZE_16KB) +#if defined(CONFIG_PAGE_SIZE_4KB) /* tilepro only */ +#define PAGE_SHIFT 12 +#define CTX_PAGE_FLAG HV_CTX_PG_SM_4K +#elif defined(CONFIG_PAGE_SIZE_16KB) #define PAGE_SHIFT 14 #define CTX_PAGE_FLAG HV_CTX_PG_SM_16K #elif defined(CONFIG_PAGE_SIZE_64KB) #define PAGE_SHIFT 16 #define CTX_PAGE_FLAG HV_CTX_PG_SM_64K #else -#define PAGE_SHIFT HV_LOG2_DEFAULT_PAGE_SIZE_SMALL -#define CTX_PAGE_FLAG 0 +#error Page size not specified in Kconfig #endif #define HPAGE_SHIFT HV_LOG2_DEFAULT_PAGE_SIZE_LARGE diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h index 81b8fc348..63ee13faf 100644 --- a/arch/tile/include/uapi/asm/mman.h +++ b/arch/tile/include/uapi/asm/mman.h @@ -36,6 +36,7 @@ */ #define MCL_CURRENT 1 /* lock all current mappings */ #define MCL_FUTURE 2 /* lock all future mappings */ +#define MCL_ONFAULT 4 /* lock all pages that are faulted in */ #endif /* _ASM_TILE_MMAN_H */ diff --git a/arch/tile/kernel/perf_event.c b/arch/tile/kernel/perf_event.c index bb509cee3..8767060d7 100644 --- a/arch/tile/kernel/perf_event.c +++ b/arch/tile/kernel/perf_event.c @@ -21,7 +21,7 @@ * Copyright (C) 2008-2009 Red Hat, Inc., Ingo Molnar * Copyright (C) 2009 Jaswinder Singh Rajput * Copyright (C) 2009 Advanced Micro Devices, Inc., Robert Richter - * Copyright (C) 2008-2009 Red Hat, Inc., Peter Zijlstra + * Copyright (C) 2008-2009 Red Hat, Inc., Peter Zijlstra * Copyright (C) 2009 Intel Corporation, * Copyright (C) 2009 Google, Inc., Stephane Eranian */ diff --git a/arch/tile/mm/highmem.c b/arch/tile/mm/highmem.c index fcd545014..eca28551b 100644 --- a/arch/tile/mm/highmem.c +++ b/arch/tile/mm/highmem.c @@ -275,15 +275,3 @@ void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot) { return kmap_atomic_prot(pfn_to_page(pfn), prot); } - -struct page *kmap_atomic_to_page(void *ptr) -{ - pte_t *pte; - unsigned long vaddr = (unsigned long)ptr; - - if (vaddr < FIXADDR_START) - return virt_to_page(ptr); - - pte = kmap_get_pte(vaddr); - return pte_page(*pte); -} -- cgit v1.2.3-54-g00ecf