.
Signed-off-by: Chris Smart
---
arch/powerpc/crypto/crc-vpmsum_test.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/crypto/crc-vpmsum_test.c
b/arch/powerpc/crypto/crc-vpmsum_test.c
index 47985219a68f..dce86e75f1a8 100644
--- a/arch/powerpc/crypto/crc-vpmsum_test.c
+++ b/arch
On Thu, Jun 16, 2016 at 11:04:12PM -0500, Segher Boessenkool wrote:
On Fri, Jun 17, 2016 at 09:33:45AM +1000, Chris Smart wrote:
+#define PPC_INST_COPY 0x7c00060c
+#define PPC_INST_COPY_FIRST0x7c20060c
+#define PPC_INST_PASTE 0x7c00070c
+#define
On Fri, Jun 17, 2016 at 05:20:05PM +1000, Balbir Singh wrote:
On 17/06/16 09:33, Chris Smart wrote:
[snip]
+
+/*
+ * ISA 3.0 (such as P9) copy, copy_first, paste and paste_last alignment
+ * check.
+ *
+ * Send a SIGBUS to the process that caused the fault
Test that an ISA 3.0 compliant machine performing an unaligned copy,
copy_first, paste or paste_last is sent a SIGBUS.
Signed-off-by: Chris Smart
---
Changes since v1:
- check that the instruction we trapped on was the one we want
- split out tests into common code
tools/testing/selftests
pasting to a co-processor and paste_last is the synchronisation
point for preceding copy/paste sequences.
Thanks to Michael Neuling for his help.
Signed-off-by: Chris Smart
---
Changes since v1:
- define and use instruction for mask test
arch/powerpc/include/asm/ppc-opcode.h | 4
arch
On Thu, Jun 09, 2016 at 08:57:50AM +0200, Christophe Leroy wrote:
Le 09/06/2016 à 08:01, Chris Smart a écrit :
Calling ISA 3.0 instructions copy, copy_first, paste and paste_last
generates an alignment fault when copying or pasting unaligned
data (128 byte). We catch this and send SIGBUS to
Test that an ISA 3.0 compliant machine performing an unaligned copy,
copy_first, paste or paste_last is sent a SIGBUS.
Signed-off-by: Chris Smart
---
tools/testing/selftests/powerpc/Makefile | 3 +-
.../testing/selftests/powerpc/alignment/.gitignore | 4 ++
tools/testing/selftests
pasting to a co-processor and paste_last is the synchronisation
point for preceding copy/paste sequences.
Thanks to Michael Neuling for his help.
Signed-off-by: Chris Smart
---
arch/powerpc/kernel/align.c | 15 +++
1 file changed, 15 insertions(+)
diff --git a/arch/powerpc/kernel
The code in machine_restart/power_off/halt() includes #ifdefs around
calls to smp_send_stop(), however these are not required as
include/linux/smp.h includes an empty version of this function for
CONFIG_SMP=n builds.
Signed-off-by: Chris Smart
---
arch/powerpc/kernel/setup-common.c | 6 --
1
The paste should never succeed and the test fails if it does.
This is a test for commit, "8a64904 powerpc: Add support for userspace
P9 copy paste."
Patch created with much assistance from Michael Neuling
Signed-off-by: Chris Smart
---
tools/testing/selftests/powerpc/Makefile
thing to check.
Confirming that strstr calls strlen on the first argument, which would
dereference a null pointer.
Reviewed-by: Chris Smart
Signed-off-by: Suraj Jitindar Singh
---
arch/powerpc/platforms/pseries/setup.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/platforms/
On Wed, Apr 27, 2016 at 03:25:59PM +, David Laight wrote:
From: Chris Smart
Sent: 26 April 2016 01:29
The copy paste facility introduced in POWER9 provides an optimised
mechanism for a userspace application to copy a cacheline. This is
provided by a pair of instructions, copy and paste
On Tue, Apr 26, 2016 at 04:42:09PM +1000, Cyril Bur wrote:
Hi Chris,
Patch looks good. Looks like you've put 8 spaces (instead of a tab) on the
PPC_CP_ABORT line.
Argh. I'm not sure how that happened, thanks.
Apart from that,
Reviewed-by: Cyril Bur
Cheers,
-c
__
one process leaking into the paste of another.
This code enables use of the cp_abort instruction if a supported
processor is detected.
NOTE: this is for userspace only, not in kernel, and does not deal
with KVM guests.
Patch created with much assistance from Michael Neuling
Signed-off-by: Chris
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