riscv: Mark some global variables __ro_after_init
All of these are never modified after init, so they can be __ro_after_init. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
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1987501b11
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de31ea4a11
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@ -11,14 +11,14 @@
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#include <asm/smp.h>
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#include <asm/smp.h>
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/* default SBI version is 0.1 */
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/* default SBI version is 0.1 */
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unsigned long sbi_spec_version = SBI_SPEC_VERSION_DEFAULT;
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unsigned long sbi_spec_version __ro_after_init = SBI_SPEC_VERSION_DEFAULT;
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EXPORT_SYMBOL(sbi_spec_version);
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EXPORT_SYMBOL(sbi_spec_version);
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static void (*__sbi_set_timer)(uint64_t stime);
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static void (*__sbi_set_timer)(uint64_t stime) __ro_after_init;
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static int (*__sbi_send_ipi)(const unsigned long *hart_mask);
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static int (*__sbi_send_ipi)(const unsigned long *hart_mask) __ro_after_init;
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static int (*__sbi_rfence)(int fid, const unsigned long *hart_mask,
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static int (*__sbi_rfence)(int fid, const unsigned long *hart_mask,
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unsigned long start, unsigned long size,
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unsigned long start, unsigned long size,
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unsigned long arg4, unsigned long arg5);
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unsigned long arg4, unsigned long arg5) __ro_after_init;
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struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0,
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struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0,
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unsigned long arg1, unsigned long arg2,
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unsigned long arg1, unsigned long arg2,
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@ -32,7 +32,7 @@ enum ipi_message_type {
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IPI_MAX
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IPI_MAX
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};
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};
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unsigned long __cpuid_to_hartid_map[NR_CPUS] = {
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unsigned long __cpuid_to_hartid_map[NR_CPUS] __ro_after_init = {
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[0 ... NR_CPUS-1] = INVALID_HARTID
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[0 ... NR_CPUS-1] = INVALID_HARTID
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};
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};
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@ -87,7 +87,7 @@ static void ipi_stop(void)
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wait_for_interrupt();
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wait_for_interrupt();
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}
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}
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static struct riscv_ipi_ops *ipi_ops;
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static struct riscv_ipi_ops *ipi_ops __ro_after_init;
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void riscv_set_ipi_ops(struct riscv_ipi_ops *ops)
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void riscv_set_ipi_ops(struct riscv_ipi_ops *ops)
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{
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{
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@ -10,7 +10,7 @@
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#include <asm/sbi.h>
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#include <asm/sbi.h>
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#include <asm/processor.h>
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#include <asm/processor.h>
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unsigned long riscv_timebase;
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unsigned long riscv_timebase __ro_after_init;
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EXPORT_SYMBOL_GPL(riscv_timebase);
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EXPORT_SYMBOL_GPL(riscv_timebase);
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void __init time_init(void)
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void __init time_init(void)
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@ -20,8 +20,8 @@
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extern char vdso_start[], vdso_end[];
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extern char vdso_start[], vdso_end[];
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static unsigned int vdso_pages;
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static unsigned int vdso_pages __ro_after_init;
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static struct page **vdso_pagelist;
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static struct page **vdso_pagelist __ro_after_init;
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/*
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/*
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* The vDSO data page.
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* The vDSO data page.
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@ -162,17 +162,17 @@ void __init setup_bootmem(void)
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}
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}
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#ifdef CONFIG_MMU
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#ifdef CONFIG_MMU
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static struct pt_alloc_ops pt_ops;
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static struct pt_alloc_ops pt_ops __ro_after_init;
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/* Offset between linear mapping virtual address and kernel load address */
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/* Offset between linear mapping virtual address and kernel load address */
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unsigned long va_pa_offset;
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unsigned long va_pa_offset __ro_after_init;
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EXPORT_SYMBOL(va_pa_offset);
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EXPORT_SYMBOL(va_pa_offset);
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#ifdef CONFIG_64BIT
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#ifdef CONFIG_64BIT
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/* Offset between kernel mapping virtual address and kernel load address */
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/* Offset between kernel mapping virtual address and kernel load address */
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unsigned long va_kernel_pa_offset;
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unsigned long va_kernel_pa_offset;
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EXPORT_SYMBOL(va_kernel_pa_offset);
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EXPORT_SYMBOL(va_kernel_pa_offset);
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#endif
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#endif
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unsigned long pfn_base;
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unsigned long pfn_base __ro_after_init;
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EXPORT_SYMBOL(pfn_base);
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EXPORT_SYMBOL(pfn_base);
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pgd_t swapper_pg_dir[PTRS_PER_PGD] __page_aligned_bss;
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pgd_t swapper_pg_dir[PTRS_PER_PGD] __page_aligned_bss;
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