Christophe Leroy 6bf752daca powerpc: implement CONFIG_DEBUG_VIRTUAL ... This patch implements CONFIG_DEBUG_VIRTUAL to warn about incorrect use of virt_to_phys() and page_to_phys() Below is the result of test_debug_virtual: [ 1.438746] WARNING: CPU: 0 PID: 1 at ./arch/powerpc/include/asm/io.h:808 test_debug_virtual_init+0x3c/0xd4 [ 1.448156] CPU: 0 PID: 1 Comm: swapper Not tainted 4.20.0-rc5-00560-g6bfb52e23a00-dirty #532 [ 1.457259] NIP: c066c550 LR: c0650ccc CTR: c066c514 [ 1.462257] REGS: c900bdb0 TRAP: 0700 Not tainted (4.20.0-rc5-00560-g6bfb52e23a00-dirty) [ 1.471184] MSR: 00029032 <EE,ME,IR,DR,RI> CR: 48000422 XER: 20000000 [ 1.477811] [ 1.477811] GPR00: c0650ccc c900be60 c60d0000 00000000 006000c0 c9000000 00009032 c7fa0020 [ 1.477811] GPR08: 00002400 00000001 09000000 00000000 c07b5d04 00000000 c00037d8 00000000 [ 1.477811] GPR16: 00000000 00000000 00000000 00000000 c0760000 c0740000 00000092 c0685bb0 [ 1.477811] GPR24: c065042c c068a734 c0685b8c 00000006 00000000 c0760000 c075c3c0 ffffffff [ 1.512711] NIP [c066c550] test_debug_virtual_init+0x3c/0xd4 [ 1.518315] LR [c0650ccc] do_one_initcall+0x8c/0x1cc [ 1.523163] Call Trace: [ 1.525595] [c900be60] [c0567340] 0xc0567340 (unreliable) [ 1.530954] [c900be90] [c0650ccc] do_one_initcall+0x8c/0x1cc [ 1.536551] [c900bef0] [c0651000] kernel_init_freeable+0x1f4/0x2cc [ 1.542658] [c900bf30] [c00037ec] kernel_init+0x14/0x110 [ 1.547913] [c900bf40] [c000e1d0] ret_from_kernel_thread+0x14/0x1c [ 1.553971] Instruction dump: [ 1.556909] 3ca50100 bfa10024 54a5000e 3fa0c076 7c0802a6 3d454000 813dc204 554893be [ 1.564566] 7d294010 7d294910 90010034 39290001 <0f090000> 7c3e0b78 955e0008 3fe0c062 [ 1.572425] ---[ end trace 6f6984225b280ad6 ]--- [ 1.577467] PA: 0x09000000 for VA: 0xc9000000 [ 1.581799] PA: 0x061e8f50 for VA: 0xc61e8f50 Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2018-12-19 18:56:26 +11:00
..
alpha	TTY/Serial fixes for 4.20-rc2	2018-11-10 13:32:14 -06:00
arc	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
arm	s390 updates for 4.20-rc2	2018-11-09 06:30:44 -06:00
arm64	arm64 fixes:	2018-11-10 07:07:21 -06:00
c6x	c6x changes for 4.20	2018-10-31 15:39:25 -07:00
csky	csky: dtb Kbuild fixup patches for linux-4.20-rc1	2018-11-01 09:04:30 -07:00
h8300	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
hexagon	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
ia64	memblock: stop using implicit alignment to SMP_CACHE_BYTES	2018-10-31 08:54:16 -07:00
m68k	s390 updates for 4.20-rc2	2018-11-09 06:30:44 -06:00
microblaze	s390 updates for 4.20-rc2	2018-11-09 06:30:44 -06:00
mips	MIPS: Fix `dma_alloc_coherent' returning a non-coherent allocation	2018-11-05 10:08:13 -08:00
nds32	s390 updates for 4.20-rc2	2018-11-09 06:30:44 -06:00
nios2	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
openrisc	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
parisc	s390 updates for 4.20-rc2	2018-11-09 06:30:44 -06:00
powerpc	powerpc: implement CONFIG_DEBUG_VIRTUAL	2018-12-19 18:56:26 +11:00
riscv	RISC-V: refresh defconfig	2018-11-01 17:04:07 -07:00
s390	s390 updates for 4.20-rc2	2018-11-09 06:30:44 -06:00
sh	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
sparc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc	2018-11-01 09:07:04 -07:00
um	for-linus-20181109	2018-11-09 16:31:51 -06:00
unicore32	memblock: stop using implicit alignment to SMP_CACHE_BYTES	2018-10-31 08:54:16 -07:00
x86	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-11-11 16:41:50 -06:00
xtensa	Xtensa fixes and cleanups for v4.20:	2018-11-01 14:32:43 -07:00
.gitignore
Kconfig	New gcc plugin: stackleak	2018-11-01 11:46:27 -07:00