Re: [PATCH] powerpc/mm: Limit allocation of SWIOTLB on server machines

On Wed, Dec 23, 2020 at 09:06:01PM -0300, Thiago Jung Bauermann wrote: > > Hi Ram, > > Thanks for reviewing this patch. > > Ram Pai writes: > > > On Fri, Dec 18, 2020 at 03:21:03AM -0300, Thiago Jung Bauermann wrote: > >> On server-class POWER machines, we don't need the SWIOTLB unless we're

[GIT PULL] Please pull powerpc/linux.git powerpc-5.11-2 tag

-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Hi Linus, Please pull some powerpc fixes for 5.11: The following changes since commit 8a5be36b9303ae167468d4f5e1b3c090b9981396: Merge tag 'powerpc-5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux (2020-12-17 13:34:25

Re: [PATCH] powerpc/32s: Fix RTAS machine check with VMAP stack

Christophe Leroy writes: > Le 22/12/2020 à 08:11, Christophe Leroy a écrit : >> When we have VMAP stack, exception prolog 1 sets r1, not r11. > > But exception prolog 1 uses r1 to setup r1 when machine check happens in > kernel. > So r1 must be restored when the branch is not taken. See

Re: [PATCH] powerpc/mm: Limit allocation of SWIOTLB on server machines

Hi Ram, Thanks for reviewing this patch. Ram Pai writes: > On Fri, Dec 18, 2020 at 03:21:03AM -0300, Thiago Jung Bauermann wrote: >> On server-class POWER machines, we don't need the SWIOTLB unless we're a >> secure VM. Nevertheless, if CONFIG_SWIOTLB is enabled we unconditionally >>

Re: [PATCH] powerpc/mm: Limit allocation of SWIOTLB on server machines

On Fri, Dec 18, 2020 at 03:21:03AM -0300, Thiago Jung Bauermann wrote: > On server-class POWER machines, we don't need the SWIOTLB unless we're a > secure VM. Nevertheless, if CONFIG_SWIOTLB is enabled we unconditionally > allocate it. > > In most cases this is harmless, but on a few machine

[PATCH 1/2] powerpc/vdso: fix unnecessary rebuilds of vgettimeofday.o

vgettimeofday.o is unnecessarily rebuilt. Adding it to 'targets' is not enough to fix the issue. Kbuild is correctly rebuilding it because the command line is changed. PowerPC builds each vdso directory twice; first in vdso_prepare to generate vdso{32,64}-offsets.h, second as part of the ordinary

[PATCH 2/2] powerpc/vdso64: remove meaningless vgettimeofday.o build rule

VDSO64 is only built for the 64-bit kernel, hence vgettimeofday.o is built by the generic rule in scripts/Makefile.build. This line does not provide anything useful. Signed-off-by: Masahiro Yamada --- arch/powerpc/kernel/vdso64/Makefile | 2 -- 1 file changed, 2 deletions(-) diff --git

[PATCH -next] soc: fsl: qe: Use DEFINE_SPINLOCK() for spinlock

spinlock can be initialized automatically with DEFINE_SPINLOCK() rather than explicitly calling spin_lock_init(). Signed-off-by: Zheng Yongjun --- drivers/soc/fsl/qe/qe_common.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/soc/fsl/qe/qe_common.c

[PATCH -next] misc: ocxl: use DEFINE_MUTEX (and mutex_init() had been too late)

Signed-off-by: Zheng Yongjun --- drivers/misc/ocxl/file.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/misc/ocxl/file.c b/drivers/misc/ocxl/file.c index 4d1b44de1492..e70525eedaae 100644 --- a/drivers/misc/ocxl/file.c +++ b/drivers/misc/ocxl/file.c @@ -15,7 +15,7

Re: [PATCH] arch: consolidate pm_power_off callback

Hi Enrico, On Tue, Dec 22, 2020 at 9:15 PM Enrico Weigelt, metux IT consult wrote: > On 22.12.20 19:54, Geert Uytterhoeven wrote: > > On Tue, Dec 22, 2020 at 7:46 PM Enrico Weigelt, metux IT consult > > wrote: > >> Move the pm_power_off callback into one global place and also add an > >>

[PATCH] powerpc/xmon: Enable breakpoints on 8xx

Since commit 4ad8622dc548 ("powerpc/8xx: Implement hw_breakpoint"), 8xx has breakpoints so there is no reason to opt breakpoint logic out of xmon for the 8xx. Signed-off-by: Christophe Leroy Fixes: 4ad8622dc548 ("powerpc/8xx: Implement hw_breakpoint") --- arch/powerpc/xmon/xmon.c | 4 1

[PATCH] tty: serial: cpm_uart: Add udbg support for enabling xmon

In order to use xmon with powerpc 8xx, the serial driver must provide udbg_putc() and udpb_getc(). Provide them via cpm_put_poll_char() and cpm_get_poll_char(). This requires CONFIG_CONSOLE_POLL. Signed-off-by: Christophe Leroy --- drivers/tty/serial/cpm_uart/cpm_uart_core.c | 40

[PATCH] powerpc/xmon: Select CONSOLE_POLL for the 8xx

Powerpc 8xx requires CONSOLE_POLL to get udbg_putc() and udbg_getc() in CPM uart driver. Signed-off-by: Christophe Leroy --- arch/powerpc/Kconfig.debug | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index b88900f4832f..ae084357994e