[PATCH v1 1/4] powerpc/fixmap: don't clear fixmap area in paging_init()
From: Christophe Leroy <hidden>
Date: 2019-09-12 13:49:45
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
fixmap is intended to map things permanently like the IMMR region on FSL SOC (8xx, 83xx, ...), so don't clear it when initialising paging() Signed-off-by: Christophe Leroy <redacted> --- arch/powerpc/mm/mem.c | 8 -------- 1 file changed, 8 deletions(-)
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index be941d382c8d..278be4712e10 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c@@ -216,14 +216,6 @@ void __init paging_init(void) unsigned long long total_ram = memblock_phys_mem_size(); phys_addr_t top_of_ram = memblock_end_of_DRAM(); -#ifdef CONFIG_PPC32 - unsigned long v = __fix_to_virt(__end_of_fixed_addresses - 1); - unsigned long end = __fix_to_virt(FIX_HOLE); - - for (; v < end; v += PAGE_SIZE) - map_kernel_page(v, 0, __pgprot(0)); /* XXX gross */ -#endif - #ifdef CONFIG_HIGHMEM map_kernel_page(PKMAP_BASE, 0, __pgprot(0)); /* XXX gross */ pkmap_page_table = virt_to_kpte(PKMAP_BASE);
--
2.13.3