diff options
| author |   Nicholas Miehlbradt <nicholas@linux.ibm.com> | 2022-09-26 07:57:23 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2022-09-28 19:22:10 +1000 |
| commit | 5e8b2c4dd3a0a4a2966e61d60dbeafab441cff28 (patch) | |
| tree | 58f87c7c633d79d7f2f652750816159d25e31032 /arch/powerpc/mm | |
| parent | powerpc/64s: update cpu selection options (diff) | |
| download | linux-dev-5e8b2c4dd3a0a4a2966e61d60dbeafab441cff28.tar.xz linux-dev-5e8b2c4dd3a0a4a2966e61d60dbeafab441cff28.zip | |
powerpc/64s: Add DEBUG_PAGEALLOC for radix
There is support for DEBUG_PAGEALLOC on hash but not on radix.
Add support on radix.
Signed-off-by: Nicholas Miehlbradt <nicholas@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220926075726.2846-1-nicholas@linux.ibm.com
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/book3s64/radix_pgtable.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c index 60c277a9b043..94a05c66be95 100644 --- a/arch/powerpc/mm/book3s64/radix_pgtable.c +++ b/arch/powerpc/mm/book3s64/radix_pgtable.c @@ -30,6 +30,7 @@ #include <asm/trace.h> #include <asm/uaccess.h> #include <asm/ultravisor.h> +#include <asm/set_memory.h> #include <trace/events/thp.h> @@ -267,13 +268,16 @@ static unsigned long next_boundary(unsigned long addr, unsigned long end) static int __meminit create_physical_mapping(unsigned long start, unsigned long end, - unsigned long max_mapping_size, int nid, pgprot_t _prot) { unsigned long vaddr, addr, mapping_size = 0; bool prev_exec, exec = false; pgprot_t prot; int psize; + unsigned long max_mapping_size = radix_mem_block_size; + + if (debug_pagealloc_enabled()) + max_mapping_size = PAGE_SIZE; start = ALIGN(start, PAGE_SIZE); end = ALIGN_DOWN(end, PAGE_SIZE); @@ -352,7 +356,6 @@ static void __init radix_init_pgtable(void) } WARN_ON(create_physical_mapping(start, end, - radix_mem_block_size, -1, PAGE_KERNEL)); } @@ -850,7 +853,7 @@ int __meminit radix__create_section_mapping(unsigned long start, } return create_physical_mapping(__pa(start), __pa(end), - radix_mem_block_size, nid, prot); + nid, prot); } int __meminit radix__remove_section_mapping(unsigned long start, unsigned long end) @@ -899,7 +902,14 @@ void __meminit radix__vmemmap_remove_mapping(unsigned long start, unsigned long #ifdef CONFIG_DEBUG_PAGEALLOC void radix__kernel_map_pages(struct page *page, int numpages, int enable) { - pr_warn_once("DEBUG_PAGEALLOC not supported in radix mode\n"); + unsigned long addr; + + addr = (unsigned long)page_address(page); + + if (enable) + set_memory_p(addr, numpages); + else + set_memory_np(addr, numpages); } #endif |