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-rw-r--r--arch/parisc/mm/hugetlbpage.c34
-rw-r--r--arch/parisc/mm/init.c63
-rw-r--r--arch/parisc/mm/ioremap.c4
3 files changed, 41 insertions, 60 deletions
diff --git a/arch/parisc/mm/hugetlbpage.c b/arch/parisc/mm/hugetlbpage.c
index a9f7e21f6656..a94fe546d434 100644
--- a/arch/parisc/mm/hugetlbpage.c
+++ b/arch/parisc/mm/hugetlbpage.c
@@ -21,27 +21,6 @@
#include <asm/mmu_context.h>
-unsigned long
-hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
- unsigned long len, unsigned long pgoff, unsigned long flags)
-{
- struct hstate *h = hstate_file(file);
-
- if (len & ~huge_page_mask(h))
- return -EINVAL;
- if (len > TASK_SIZE)
- return -ENOMEM;
-
- if (flags & MAP_FIXED)
- if (prepare_hugepage_range(file, addr, len))
- return -EINVAL;
-
- if (addr)
- addr = ALIGN(addr, huge_page_size(h));
-
- /* we need to make sure the colouring is OK */
- return arch_get_unmapped_area(file, addr, len, pgoff, flags);
-}
pte_t *huge_pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma,
@@ -147,7 +126,7 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
+ pte_t *ptep, unsigned long sz)
{
pte_t entry;
@@ -180,14 +159,3 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma,
}
return changed;
}
-
-
-int pmd_huge(pmd_t pmd)
-{
- return 0;
-}
-
-int pud_huge(pud_t pud)
-{
- return 0;
-}
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index f876af56e13f..14270715d754 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -24,6 +24,7 @@
#include <linux/nodemask.h> /* for node_online_map */
#include <linux/pagemap.h> /* for release_pages */
#include <linux/compat.h>
+#include <linux/execmem.h>
#include <asm/pgalloc.h>
#include <asm/tlb.h>
@@ -376,10 +377,8 @@ static void __ref map_pages(unsigned long start_vaddr,
#if CONFIG_PGTABLE_LEVELS == 3
if (pud_none(*pud)) {
- pmd = memblock_alloc(PAGE_SIZE << PMD_TABLE_ORDER,
+ pmd = memblock_alloc_or_panic(PAGE_SIZE << PMD_TABLE_ORDER,
PAGE_SIZE << PMD_TABLE_ORDER);
- if (!pmd)
- panic("pmd allocation failed.\n");
pud_populate(NULL, pud, pmd);
}
#endif
@@ -387,9 +386,7 @@ static void __ref map_pages(unsigned long start_vaddr,
pmd = pmd_offset(pud, vaddr);
for (tmp1 = start_pmd; tmp1 < PTRS_PER_PMD; tmp1++, pmd++) {
if (pmd_none(*pmd)) {
- pg_table = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
- if (!pg_table)
- panic("page table allocation failed\n");
+ pg_table = memblock_alloc_or_panic(PAGE_SIZE, PAGE_SIZE);
pmd_populate_kernel(NULL, pmd, pg_table);
}
@@ -458,7 +455,6 @@ void free_initmem(void)
unsigned long kernel_end = (unsigned long)&_end;
/* Remap kernel text and data, but do not touch init section yet. */
- kernel_set_to_readonly = true;
map_pages(init_end, __pa(init_end), kernel_end - init_end,
PAGE_KERNEL, 0);
@@ -481,7 +477,7 @@ void free_initmem(void)
/* finally dump all the instructions which were cached, since the
* pages are no-longer executable */
flush_icache_range(init_begin, init_end);
-
+
free_initmem_default(POISON_FREE_INITMEM);
/* set up a new led state on systems shipped LED State panel */
@@ -492,11 +488,18 @@ void free_initmem(void)
#ifdef CONFIG_STRICT_KERNEL_RWX
void mark_rodata_ro(void)
{
- /* rodata memory was already mapped with KERNEL_RO access rights by
- pagetable_init() and map_pages(). No need to do additional stuff here */
- unsigned long roai_size = __end_ro_after_init - __start_ro_after_init;
+ unsigned long start = (unsigned long) &__start_rodata;
+ unsigned long end = (unsigned long) &__end_rodata;
- pr_info("Write protected read-only-after-init data: %luk\n", roai_size >> 10);
+ pr_info("Write protecting the kernel read-only data: %luk\n",
+ (end - start) >> 10);
+
+ kernel_set_to_readonly = true;
+ map_pages(start, __pa(start), end - start, PAGE_KERNEL, 0);
+
+ /* force the kernel to see the new page table entries */
+ flush_cache_all();
+ flush_tlb_all();
}
#endif
@@ -559,10 +562,6 @@ void __init mem_init(void)
BUILD_BUG_ON(TMPALIAS_MAP_START >= 0x80000000);
#endif
- high_memory = __va((max_pfn << PAGE_SHIFT));
- set_max_mapnr(max_low_pfn);
- memblock_free_all();
-
#ifdef CONFIG_PA11
if (boot_cpu_data.cpu_type == pcxl2 || boot_cpu_data.cpu_type == pcxl) {
pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START);
@@ -641,9 +640,7 @@ static void __init pagetable_init(void)
}
#endif
- empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
- if (!empty_zero_page)
- panic("zero page allocation failed.\n");
+ empty_zero_page = memblock_alloc_or_panic(PAGE_SIZE, PAGE_SIZE);
}
@@ -680,19 +677,15 @@ static void __init fixmap_init(void)
#if CONFIG_PGTABLE_LEVELS == 3
if (pud_none(*pud)) {
- pmd = memblock_alloc(PAGE_SIZE << PMD_TABLE_ORDER,
+ pmd = memblock_alloc_or_panic(PAGE_SIZE << PMD_TABLE_ORDER,
PAGE_SIZE << PMD_TABLE_ORDER);
- if (!pmd)
- panic("fixmap: pmd allocation failed.\n");
pud_populate(NULL, pud, pmd);
}
#endif
pmd = pmd_offset(pud, addr);
do {
- pte_t *pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
- if (!pte)
- panic("fixmap: pte allocation failed.\n");
+ pte_t *pte = memblock_alloc_or_panic(PAGE_SIZE, PAGE_SIZE);
pmd_populate_kernel(&init_mm, pmd, pte);
@@ -992,3 +985,23 @@ static const pgprot_t protection_map[16] = {
[VM_SHARED | VM_EXEC | VM_WRITE | VM_READ] = PAGE_RWX
};
DECLARE_VM_GET_PAGE_PROT
+
+#ifdef CONFIG_EXECMEM
+static struct execmem_info execmem_info __ro_after_init;
+
+struct execmem_info __init *execmem_arch_setup(void)
+{
+ execmem_info = (struct execmem_info){
+ .ranges = {
+ [EXECMEM_DEFAULT] = {
+ .start = VMALLOC_START,
+ .end = VMALLOC_END,
+ .pgprot = PAGE_KERNEL_RWX,
+ .alignment = 1,
+ },
+ },
+ };
+
+ return &execmem_info;
+}
+#endif /* CONFIG_EXECMEM */
diff --git a/arch/parisc/mm/ioremap.c b/arch/parisc/mm/ioremap.c
index fd996472dfe7..0b65c4b3baee 100644
--- a/arch/parisc/mm/ioremap.c
+++ b/arch/parisc/mm/ioremap.c
@@ -14,7 +14,7 @@
#include <linux/mm.h>
void __iomem *ioremap_prot(phys_addr_t phys_addr, size_t size,
- unsigned long prot)
+ pgprot_t prot)
{
#ifdef CONFIG_EISA
unsigned long end = phys_addr + size - 1;
@@ -41,6 +41,6 @@ void __iomem *ioremap_prot(phys_addr_t phys_addr, size_t size,
}
}
- return generic_ioremap_prot(phys_addr, size, __pgprot(prot));
+ return generic_ioremap_prot(phys_addr, size, prot);
}
EXPORT_SYMBOL(ioremap_prot);
generated by cgit v1.2.3 (git 2.46.0) at 2025-04-27 20:28:26 +0000