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authorSerge Semin <fancer.lancer@gmail.com>2019-04-24 01:47:37 +0300
committerPaul Burton <paul.burton@mips.com>2019-04-24 15:24:43 -0700
commita703db3d5b4b43cb7e46b65a661471015cbcba57 (patch)
treeb2b68142f039d2a62b897c16d282d23e9cf62312 /arch/mips/kernel
parent1e0221374e30a765a02e00f01f68869eac57c8d3 (diff)
downloadlinux-a703db3d5b4b43cb7e46b65a661471015cbcba57.tar.bz2
mips: Make sure kernel .bss exists in boot mem pool
Current MIPS platform code makes sure the kernel text, data and init sections are added to the boot memory map pool right after the arch-specific memory setup method has been executed. But for some reason the MIPS platform code skipped the kernel .bss section, which definitely should be in the boot mem pool as well in any case. Lets fix this just be adding the space between __bss_start and __bss_stop. Reviewed-by: Matt Redfearn <matt.redfearn@mips.com> Signed-off-by: Serge Semin <fancer.lancer@gmail.com> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: Stefan Agner <stefan@agner.ch> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Juergen Gross <jgross@suse.com> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
Diffstat (limited to 'arch/mips/kernel')
-rw-r--r--arch/mips/kernel/setup.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 8d1dc6c71173..0ee033c44116 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -809,6 +809,9 @@ static void __init arch_mem_init(char **cmdline_p)
arch_mem_addpart(PFN_UP(__pa_symbol(&__init_begin)) << PAGE_SHIFT,
PFN_DOWN(__pa_symbol(&__init_end)) << PAGE_SHIFT,
BOOT_MEM_INIT_RAM);
+ arch_mem_addpart(PFN_DOWN(__pa_symbol(&__bss_start)) << PAGE_SHIFT,
+ PFN_UP(__pa_symbol(&__bss_stop)) << PAGE_SHIFT,
+ BOOT_MEM_RAM);
pr_info("Determined physical RAM map:\n");
print_memory_map();