diff options
Diffstat (limited to 'arch/csky')
| -rw-r--r-- | arch/csky/Kconfig | 2 | ||||
| -rw-r--r-- | arch/csky/include/asm/cachetype.h | 9 | ||||
| -rw-r--r-- | arch/csky/include/asm/page.h | 7 | ||||
| -rw-r--r-- | arch/csky/include/asm/vdso.h | 5 | ||||
| -rw-r--r-- | arch/csky/kernel/smp.c | 4 | ||||
| -rw-r--r-- | arch/csky/kernel/vdso.c | 14 |
6 files changed, 14 insertions, 27 deletions
diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig index cf2a6fd7df..d3ac36751a 100644 --- a/arch/csky/Kconfig +++ b/arch/csky/Kconfig @@ -2,6 +2,7 @@ config CSKY def_bool y select ARCH_32BIT_OFF_T + select ARCH_HAS_CPU_CACHE_ALIASING select ARCH_HAS_DMA_PREP_COHERENT select ARCH_HAS_GCOV_PROFILE_ALL select ARCH_HAS_SYNC_DMA_FOR_CPU @@ -89,6 +90,7 @@ config CSKY select HAVE_KPROBES if !CPU_CK610 select HAVE_KPROBES_ON_FTRACE if !CPU_CK610 select HAVE_KRETPROBES if !CPU_CK610 + select HAVE_PAGE_SIZE_4KB select HAVE_PERF_EVENTS select HAVE_PERF_REGS select HAVE_PERF_USER_STACK_DUMP diff --git a/arch/csky/include/asm/cachetype.h b/arch/csky/include/asm/cachetype.h new file mode 100644 index 0000000000..98cbe3af66 --- /dev/null +++ b/arch/csky/include/asm/cachetype.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_CSKY_CACHETYPE_H +#define __ASM_CSKY_CACHETYPE_H + +#include <linux/types.h> + +#define cpu_dcache_is_aliasing() true + +#endif diff --git a/arch/csky/include/asm/page.h b/arch/csky/include/asm/page.h index 4a0502e324..0ca6c408c0 100644 --- a/arch/csky/include/asm/page.h +++ b/arch/csky/include/asm/page.h @@ -10,7 +10,7 @@ /* * PAGE_SHIFT determines the page size: 4KB */ -#define PAGE_SHIFT 12 +#define PAGE_SHIFT CONFIG_PAGE_SHIFT #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE - 1)) #define THREAD_SIZE (PAGE_SIZE * 2) @@ -82,11 +82,6 @@ static inline unsigned long virt_to_pfn(const void *kaddr) return __pa(kaddr) >> PAGE_SHIFT; } -static inline void * pfn_to_virt(unsigned long pfn) -{ - return (void *)((unsigned long)__va(pfn) << PAGE_SHIFT); -} - #define MAP_NR(x) PFN_DOWN((unsigned long)(x) - PAGE_OFFSET - \ PHYS_OFFSET_OFFSET) #define virt_to_page(x) (mem_map + MAP_NR(x)) diff --git a/arch/csky/include/asm/vdso.h b/arch/csky/include/asm/vdso.h index bdce581b5f..181a15edaf 100644 --- a/arch/csky/include/asm/vdso.h +++ b/arch/csky/include/asm/vdso.h @@ -5,11 +5,6 @@ #include <linux/types.h> -#ifndef GENERIC_TIME_VSYSCALL -struct vdso_data { -}; -#endif - /* * The VDSO symbols are mapped into Linux so we can just use regular symbol * addressing to get their offsets in userspace. The symbols are mapped at an diff --git a/arch/csky/kernel/smp.c b/arch/csky/kernel/smp.c index 8e42352cbf..92dbbf3e02 100644 --- a/arch/csky/kernel/smp.c +++ b/arch/csky/kernel/smp.c @@ -152,10 +152,6 @@ void arch_irq_work_raise(void) } #endif -void __init smp_prepare_boot_cpu(void) -{ -} - void __init smp_prepare_cpus(unsigned int max_cpus) { } diff --git a/arch/csky/kernel/vdso.c b/arch/csky/kernel/vdso.c index 16c20d64d1..2ca886e4a4 100644 --- a/arch/csky/kernel/vdso.c +++ b/arch/csky/kernel/vdso.c @@ -8,25 +8,15 @@ #include <linux/slab.h> #include <asm/page.h> -#ifdef GENERIC_TIME_VSYSCALL #include <vdso/datapage.h> -#else -#include <asm/vdso.h> -#endif extern char vdso_start[], vdso_end[]; static unsigned int vdso_pages; static struct page **vdso_pagelist; -/* - * The vDSO data page. - */ -static union { - struct vdso_data data; - u8 page[PAGE_SIZE]; -} vdso_data_store __page_aligned_data; -struct vdso_data *vdso_data = &vdso_data_store.data; +static union vdso_data_store vdso_data_store __page_aligned_data; +struct vdso_data *vdso_data = vdso_data_store.data; static int __init vdso_init(void) { |