diff options
Diffstat (limited to 'arch/csky/kernel')
| -rw-r--r-- | arch/csky/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/csky/kernel/asm-offsets.c | 1 | ||||
| -rw-r--r-- | arch/csky/kernel/perf_event.c | 3 | ||||
| -rw-r--r-- | arch/csky/kernel/process.c | 2 | ||||
| -rw-r--r-- | arch/csky/kernel/ptrace.c | 4 | ||||
| -rw-r--r-- | arch/csky/kernel/setup.c | 57 | ||||
| -rw-r--r-- | arch/csky/kernel/vdso.c | 2 | ||||
| -rw-r--r-- | arch/csky/kernel/vdso/Makefile | 2 | ||||
| -rw-r--r-- | arch/csky/kernel/vmlinux.lds.S | 1 |
9 files changed, 59 insertions, 15 deletions
diff --git a/arch/csky/kernel/Makefile b/arch/csky/kernel/Makefile index de1c3472e8f0..a406a4ac2378 100644 --- a/arch/csky/kernel/Makefile +++ b/arch/csky/kernel/Makefile @@ -1,5 +1,5 @@ # SPDX-License-Identifier: GPL-2.0-only -extra-y := vmlinux.lds +always-$(KBUILD_BUILTIN) := vmlinux.lds obj-y += head.o entry.o atomic.o signal.o traps.o irq.o time.o vdso.o vdso/ obj-y += power.o syscall.o syscall_table.o setup.o diff --git a/arch/csky/kernel/asm-offsets.c b/arch/csky/kernel/asm-offsets.c index d1e903579473..5525c8e7e1d9 100644 --- a/arch/csky/kernel/asm-offsets.c +++ b/arch/csky/kernel/asm-offsets.c @@ -1,5 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd. +#define COMPILE_OFFSETS #include <linux/sched.h> #include <linux/kernel_stat.h> diff --git a/arch/csky/kernel/perf_event.c b/arch/csky/kernel/perf_event.c index e5f18420ce64..e0a36acd265b 100644 --- a/arch/csky/kernel/perf_event.c +++ b/arch/csky/kernel/perf_event.c @@ -1139,8 +1139,7 @@ static irqreturn_t csky_pmu_handle_irq(int irq_num, void *dev) perf_sample_data_init(&data, 0, hwc->last_period); csky_pmu_event_set_period(event); - if (perf_event_overflow(event, &data, regs)) - csky_pmu_stop_event(event); + perf_event_overflow(event, &data, regs); } csky_pmu_enable(&csky_pmu.pmu); diff --git a/arch/csky/kernel/process.c b/arch/csky/kernel/process.c index 0c6e4b17fe00..a7a90340042a 100644 --- a/arch/csky/kernel/process.c +++ b/arch/csky/kernel/process.c @@ -32,7 +32,7 @@ void flush_thread(void){} int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { - unsigned long clone_flags = args->flags; + u64 clone_flags = args->flags; unsigned long usp = args->stack; unsigned long tls = args->tls; struct switch_stack *childstack; diff --git a/arch/csky/kernel/ptrace.c b/arch/csky/kernel/ptrace.c index 0f7e7b653c72..6bb685a2646b 100644 --- a/arch/csky/kernel/ptrace.c +++ b/arch/csky/kernel/ptrace.c @@ -166,7 +166,7 @@ static int fpr_set(struct task_struct *target, static const struct user_regset csky_regsets[] = { [REGSET_GPR] = { - .core_note_type = NT_PRSTATUS, + USER_REGSET_NOTE_TYPE(PRSTATUS), .n = sizeof(struct pt_regs) / sizeof(u32), .size = sizeof(u32), .align = sizeof(u32), @@ -174,7 +174,7 @@ static const struct user_regset csky_regsets[] = { .set = gpr_set, }, [REGSET_FPR] = { - .core_note_type = NT_PRFPREG, + USER_REGSET_NOTE_TYPE(PRFPREG), .n = sizeof(struct user_fp) / sizeof(u32), .size = sizeof(u32), .align = sizeof(u32), diff --git a/arch/csky/kernel/setup.c b/arch/csky/kernel/setup.c index fe715b707fd0..45c98dcf7f50 100644 --- a/arch/csky/kernel/setup.c +++ b/arch/csky/kernel/setup.c @@ -12,11 +12,57 @@ #include <asm/mmu_context.h> #include <asm/pgalloc.h> +#ifdef CONFIG_BLK_DEV_INITRD +static void __init setup_initrd(void) +{ + unsigned long size; + + if (initrd_start >= initrd_end) { + pr_err("initrd not found or empty"); + goto disable; + } + + if (__pa(initrd_end) > PFN_PHYS(max_low_pfn)) { + pr_err("initrd extends beyond end of memory"); + goto disable; + } + + size = initrd_end - initrd_start; + + if (memblock_is_region_reserved(__pa(initrd_start), size)) { + pr_err("INITRD: 0x%08lx+0x%08lx overlaps in-use memory region", + __pa(initrd_start), size); + goto disable; + } + + memblock_reserve(__pa(initrd_start), size); + + pr_info("Initial ramdisk at: 0x%p (%lu bytes)\n", + (void *)(initrd_start), size); + + initrd_below_start_ok = 1; + + return; + +disable: + initrd_start = initrd_end = 0; + + pr_err(" - disabling initrd\n"); +} +#endif + +void __init arch_zone_limits_init(unsigned long *max_zone_pfns) +{ + max_zone_pfns[ZONE_NORMAL] = max_low_pfn; +#ifdef CONFIG_HIGHMEM + max_zone_pfns[ZONE_HIGHMEM] = max_pfn; +#endif +} + static void __init csky_memblock_init(void) { unsigned long lowmem_size = PFN_DOWN(LOWMEM_LIMIT - PHYS_OFFSET_OFFSET); unsigned long sseg_size = PFN_DOWN(SSEG_SIZE - PHYS_OFFSET_OFFSET); - unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0 }; signed long size; memblock_reserve(__pa(_start), _end - _start); @@ -40,12 +86,13 @@ static void __init csky_memblock_init(void) max_low_pfn = min_low_pfn + sseg_size; } - max_zone_pfn[ZONE_NORMAL] = max_low_pfn; +#ifdef CONFIG_BLK_DEV_INITRD + setup_initrd(); +#endif mmu_init(min_low_pfn, max_low_pfn); #ifdef CONFIG_HIGHMEM - max_zone_pfn[ZONE_HIGHMEM] = max_pfn; highstart_pfn = max_low_pfn; highend_pfn = max_pfn; @@ -53,8 +100,6 @@ static void __init csky_memblock_init(void) memblock_set_current_limit(PFN_PHYS(max_low_pfn)); dma_contiguous_reserve(0); - - free_area_init(max_zone_pfn); } void __init setup_arch(char **cmdline_p) @@ -78,8 +123,6 @@ void __init setup_arch(char **cmdline_p) setup_smp(); #endif - sparse_init(); - fixaddr_init(); #ifdef CONFIG_HIGHMEM diff --git a/arch/csky/kernel/vdso.c b/arch/csky/kernel/vdso.c index c54d019d66bc..6886c0b3f60b 100644 --- a/arch/csky/kernel/vdso.c +++ b/arch/csky/kernel/vdso.c @@ -20,7 +20,7 @@ static int __init vdso_init(void) vdso_pages = (vdso_end - vdso_start) >> PAGE_SHIFT; vdso_pagelist = - kcalloc(vdso_pages, sizeof(struct page *), GFP_KERNEL); + kzalloc_objs(struct page *, vdso_pages); if (unlikely(vdso_pagelist == NULL)) { pr_err("vdso: pagelist allocation failed\n"); return -ENOMEM; diff --git a/arch/csky/kernel/vdso/Makefile b/arch/csky/kernel/vdso/Makefile index 069ef0b17fe5..a3042287a070 100644 --- a/arch/csky/kernel/vdso/Makefile +++ b/arch/csky/kernel/vdso/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0-only # Include the generic Makefile to check the built vdso. -include $(srctree)/lib/vdso/Makefile +include $(srctree)/lib/vdso/Makefile.include # Symbols present in the vdso vdso-syms += rt_sigreturn diff --git a/arch/csky/kernel/vmlinux.lds.S b/arch/csky/kernel/vmlinux.lds.S index d718961786d2..81943981b3af 100644 --- a/arch/csky/kernel/vmlinux.lds.S +++ b/arch/csky/kernel/vmlinux.lds.S @@ -109,6 +109,7 @@ SECTIONS STABS_DEBUG DWARF_DEBUG + MODINFO ELF_DETAILS DISCARDS |
