Commit 5e8b2c4d authored by Nicholas Miehlbradt's avatar Nicholas Miehlbradt Committed by Michael Ellerman
Browse files

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: default avatarNicholas Miehlbradt <nicholas@linux.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220926075726.2846-1-nicholas@linux.ibm.com
parent 7fd123e5

arch/powerpc/mm/book3s64/radix_pgtable.c

+14 −4
Original line number Diff line number Diff line
@@ -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