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powerpc/64s: Add DEBUG_PAGEALLOC for radix

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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
This commit is contained in:
Nicholas Miehlbradt
2022-09-26 07:57:23 +00:00
committed by Michael Ellerman
parent 7fd123e544
commit 5e8b2c4dd3
1 changed files with 14 additions and 4 deletions
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18
arch/powerpc/mm/book3s64/radix_pgtable.c
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@@ -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