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git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes from Arnaldo Carvalho de Melo:
- Don't build 'perf kvm stat" on non-x86 arches, fix from Xiao Guangrong.
- UAPI fixes to get perf building again in non-x86 arches, from David Howells.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Now, 'perf kvm stat' is only supported on x86, let its code depend on
(__x86_64__ || __i386__) to fix building it on other architectures.
Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Dong Hao <haodong@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Josh Boyer <jwboyer@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Runzhen Wang <runzhen@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arch@vger.kernel.org
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/50A9EB89.70901@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Then let it only be used in 'perf kvm stat'.
Preparatory patch to stop trying to build parts of this tool that for
now are only supported on x86.
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Dong Hao <haodong@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Josh Boyer <jwboyer@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Runzhen Wang <runzhen@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arch@vger.kernel.org
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/50A488DD.6090106@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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git://git.infradead.org/users/dhowells/linux-headers into perf/urgent
Merge reason: UAPI fixes for building on non x86 arches.
perf/urgent fixes 2012-11-19
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Make perf build for x86 once the UAPI disintegration patches for that arch
have been applied by adding the appropriate -I flags - in the right order -
and then converting some #includes that use ../.. notation to find main kernel
headerfiles to use <asm/foo.h> and <linux/foo.h> instead.
Note that -Iarch/foo/include/uapi is present _before_ -Iarch/foo/include.
This makes sure we get the userspace version of the pt_regs struct. Ideally,
we wouldn't have the latter -I flag at all, but unfortunately we want
asm/svm.h and asm/vmx.h in builtin-kvm.c and these aren't part of the UAPI -
at least not for x86. I wonder if the bits outside of the __KERNEL__ guards
*should* be transferred there.
I note also that perf seems to do its dependency handling manually by listing
all the header files it might want to use in LIB_H in the Makefile. Can this
be changed to use -MD?
Note that to do make this work, we need to export and UAPI disintegrate
linux/hw_breakpoint.h, which I think should've been exported previously so that
perf can access the bits. We have to do this in the same patch to maintain
bisectability.
Signed-off-by: David Howells <dhowells@redhat.com>
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Use the 'unistd.h' from arch/powerpc/include/uapi to build the perf tool.
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-by: David Howells <dhowells@redhat.com>
Cc: Anton Blanchard <anton@au1.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: linuxppc-dev@ozlabs.org
Link: http://lkml.kernel.org/r/20121107191818.GA16211@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Fixing:
[acme@sandy linux]$ cd tools
[acme@sandy tools]$ make clean
DESCEND power/cpupower
CC lib/cpufreq.o
CC lib/sysfs.o
LD libcpupower.so.0.0.0
CC utils/helpers/amd.o
utils/helpers/amd.c:7:21: error: pci/pci.h: No such file or directory
In file included from utils/helpers/amd.c:9:
./utils/helpers/helpers.h:137: warning: ‘struct pci_access’ declared inside parameter list
./utils/helpers/helpers.h:137: warning: its scope is only this definition or declaration, which is probably not what you want
./utils/helpers/helpers.h:139: warning: ‘struct pci_access’ declared inside parameter list
utils/helpers/amd.c: In function ‘amd_pci_get_num_boost_states’:
utils/helpers/amd.c:120: warning: passing argument 1 of ‘pci_slot_func_init’ from incompatible pointer type
./utils/helpers/helpers.h:138: note: expected ‘struct pci_access **’ but argument is of type ‘struct pci_access **’
utils/helpers/amd.c:125: warning: implicit declaration of function ‘pci_read_byte’
utils/helpers/amd.c:132: warning: implicit declaration of function ‘pci_cleanup’
make[1]: *** [utils/helpers/amd.o] Error 1
make: *** [cpupower_clean] Error 2
[acme@sandy tools]$
Reported-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Borislav Petkov <bp@amd64.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/n/tip-tviyimq6x6nm77sj5lt4t19f@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Honour the O= flag that was passed to a higher level Makefile and then passed
down as part of a tool build.
To make this work, the top-level Makefile passes the original O= flag and
subdir=tools to the tools/Makefile, and that in turn passes
subdir=$(O)/$(subdir)/foodir when building tool foo in directory
$(O)/$(subdir)/foodir (where the intervening slashes aren't added if an
element is missing).
For example, take perf. This is found in tools/perf/. Assume we're building
into directory ~/zebra/, so we pass O=~/zebra to make. Dependening on where
we run the build from, we see:
make run in dir $(OUTPUT) dir
======================= ==================
linux ~/zebra/tools/perf/
linux/tools ~/zebra/perf/
linux/tools/perf ~/zebra/
and if O= is not set, we get:
make run in dir $(OUTPUT) dir
======================= ==================
linux linux/tools/perf/
linux/tools linux/tools/perf/
linux/tools/perf linux/tools/perf/
The output directories are created by the descend function if they don't
already exist.
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Borislav Petkov <bp@amd64.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1378.1352379110@warthog.procyon.org.uk
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Define a Makefile function that can be called with $(call ...) to wrap
the subdir make invocations in tools/Makefile.
This will allow us in the next patch to insert bits in there to honour
O= flags when called from the top-level Makefile.
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Borislav Petkov <bp@amd64.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1378.1352379110@warthog.procyon.org.uk
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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David Howells (1):
x86: Export asm/{svm.h,vmx.h,perf_regs.h}
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Export asm/{svm.h,vmx.h,perf_regs.h} so that they can be disintegrated.
It looks from previous commits that the first two should have been exported,
but the header-y lines weren't added to the Kbuild.
I'm guessing that asm/perf_regs.h should be exported too.
Signed-off-by: David Howells <dhowells@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes from Arnaldo Carvalho de Melo:
* Fix numa topology printing, from Namhyung Kim.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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This was found during chasing down the header output regression. The
strbuf_addf() was checking buffer length with a result of vscnprintf()
which cannot be greater than that of strbuf_avail().
Since numa topology and pmu mapping info in header were converted to use
strbuf, it sometimes caused uninteresting behaviors with the broken
strbuf.
Fix it by using vsnprintf() which returns desired output string length
regardless of the available buffer size and grow the buffer if needed.
Reported-by: Andrew Jones <drjones@redhat.com>
Tested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andrew Jones <drjones@redhat.com>
Link: http://lkml.kernel.org/r/1350999890-6920-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Andrew reported that the commit 7e94cfcc9d20 ("perf header: Use pre-
processed session env when printing") regresses the header output. It
was because of a missed string pointer calculation in the loop.
Reported-by: Andrew Jones <drjones@redhat.com>
Tested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andrew Jones <drjones@redhat.com>
Link: http://lkml.kernel.org/r/1350999890-6920-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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I've been trying to get hardware breakpoints with perf to work
on POWER7 but I'm getting the following:
% perf record -e mem:0x10000000 true
Error: sys_perf_event_open() syscall returned with 28 (No space left on device). /bin/dmesg may provide additional information.
Fatal: No CONFIG_PERF_EVENTS=y kernel support configured?
true: Terminated
(FWIW adding -a and it works fine)
Debugging it seems that __reserve_bp_slot() is returning ENOSPC
because it thinks there are no free breakpoint slots on this
CPU.
I have a 2 CPUs, so perf userspace is doing two perf_event_open
syscalls to add a counter to each CPU [1]. The first syscall
succeeds but the second is failing.
On this second syscall, fetch_bp_busy_slots() sets slots.pinned
to be 1, despite there being no breakpoint on this CPU. This is
because the call the task_bp_pinned, checks all CPUs, rather
than just the current CPU. POWER7 only has one hardware
breakpoint per CPU (ie. HBP_NUM=1), so we return ENOSPC.
The following patch fixes this by checking the associated CPU
for each breakpoint in task_bp_pinned. I'm not familiar with
this code, so it's provided as a reference to the above issue.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Jovi Zhang <bookjovi@gmail.com>
Cc: K Prasad <prasad@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1351268936-2956-1-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin.
This includes the resume-time FPU corruption fix from the chromeos guys,
marked for stable.
* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, fpu: Avoid FPU lazy restore after suspend
x86-32: Unbreak booting on some 486 clones
x86, kvm: Remove incorrect redundant assembly constraint
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When a cpu enters S3 state, the FPU state is lost.
After resuming for S3, if we try to lazy restore the FPU for a process running
on the same CPU, this will result in a corrupted FPU context.
Ensure that "fpu_owner_task" is properly invalided when (re-)initializing a CPU,
so nobody will try to lazy restore a state which doesn't exist in the hardware.
Tested with a 64-bit kernel on a 4-core Ivybridge CPU with eagerfpu=off,
by doing thousands of suspend/resume cycles with 4 processes doing FPU
operations running. Without the patch, a process is killed after a
few hundreds cycles by a SIGFPE.
Cc: Duncan Laurie <dlaurie@chromium.org>
Cc: Olof Johansson <olofj@chromium.org>
Cc: <stable@kernel.org> v3.4+ # for 3.4 need to replace this_cpu_write by percpu_write
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Link: http://lkml.kernel.org/r/1354306532-1014-1-git-send-email-vpalatin@chromium.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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There appear to have been some 486 clones, including the "enhanced"
version of Am486, which have CPUID but not CR4. These 486 clones had
only the FPU flag, if any, unlike the Intel 486s with CPUID, which
also had VME and therefore needed CR4.
Therefore, look at the basic CPUID flags and require at least one bit
other than bit 0 before we modify CR4.
Thanks to Christian Ludloff of sandpile.org for confirming this as a
problem.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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In __emulate_1op_rax_rdx, we use "+a" and "+d" which are input/output
constraints, and *then* use "a" and "d" as input constraints. This is
incorrect, but happens to work on some versions of gcc.
However, it breaks gcc with -O0 and icc, and may break on future
versions of gcc.
Reported-and-tested-by: Melanie Blower <melanie.blower@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/B3584E72CFEBED439A3ECA9BCE67A4EF1B17AF90@FMSMSX107.amr.corp.intel.com
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
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Pull C6X fixes from Mark Salter.
* tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming:
c6x: use generic kvm_para.h
c6x: remove internal kernel symbols from exported setup.h
c6x: fix misleading comment
c6x: run do_notify_resume with interrupts enabled
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Signed-off-by: Mark Salter <msalter@redhat.com>
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Some internal kernel symbols were referenced in the exported setup.h.
This splits out the internal bits from the exported uapi bits.
Signed-off-by: Mark Salter <msalter@redhat.com>
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A comment in entry.S incorrectly stated that interrupt vectors
called __do_IRQ() and that int6 vector was used for syscalls.
Both statements are incorrect for the current kernel, so this
patch cleans up the wording to reflect current reality.
Signed-off-by: Mark Salter <msalter@redhat.com>
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C6x was mistakenly running do_notify_resume with interrupts disabled.
This would triggerlead to a warning in local_bh_enable() because interrupts
were disabled:
------------[ cut here ]------------
WARNING: at /es/linux/linux-next/kernel/softirq.c:160 local_bh_enable+0x5c/0x10c()
Modules linked in:
e02f384d e002cda8 e02f3469 e02f384d 000000a0 e00363fc e01cce58 e5005c00
e0327986 00000000 e63c0aec 00000164 e00363fc 00000000 fffffffe e5005c00
e61fde00 e0268184 00000134 e01c91dc 00000001 fffffffe 00000000 10000100
e01c80e4 e5005c00 00000000 00000000 00000000 e63c0aec e526ce00 10000100
e628f920 e63c0a88 e6010410 e6449750 e5005c20 00000000 00000000 e63c0a80
e5005c20 e01c8590 e63c0a80 e5005c20 e63c0aec e00a0554 e009c758 e639e860
irq_spurious_proc_fops+0x6ad/0x3438
warn_slowpath_common+0x8c/0xb8
irq_spurious_proc_fops+0x2c9/0x3438
irq_spurious_proc_fops+0x6ad/0x3438
local_bh_enable+0x5c/0x10c
sk_alloc+0x34/0xa4
local_bh_enable+0x5c/0x10c
unix_release_sock+0x5c/0x2a0
sys_connect+0x94/0xd4
sock_release+0x38/0x104
sock_close+0x3c/0x54
__fput+0x154/0x2ec
filp_close+0xc0/0xe4
task_work_run+0xdc/0x12c
sys_close+0x2c/0x74
resume_userspace+0x0/0x30
---[ end trace a70cbd610ae1f6b4 ]---
This patch enables interrupts before calling do_notify_resume().
Signed-off-by: Mark Salter <msalter@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Pull assorted signal-related fixes from Al Viro:
"uml regression fix (braino in sys_execve() patch) + a bunch of fucked
sigaltstack-on-rt_sigreturn uses, similar to sparc64 fix that went in
through davem's tree. m32r horrors not included - that one's waiting
for maintainer."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:
microblaze: rt_sigreturn is too trigger-happy about sigaltstack errors
score: do_sigaltstack() expects a userland pointer...
sh64: fix altstack switching on sigreturn
openrisk: fix altstack switching on sigreturn
um: get_safe_registers() should be done in flush_thread(), not start_thread()
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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incidentally, declaring a local variable as __user (!) to make
sparse STFU is really sick. Especially since sparse had been
100% right - it *is* a bug.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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do_sigaltstack() expects _userland_ address, TYVM...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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... or we'll end up buggering the results of ELF_PLAT_INIT()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Pull CIFS fixes from Steve French:
"Two low risk, small fixes, that fix cifs regressions introduced in
3.7."
* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
CIFS: Fix wrong buffer pointer usage in smb_set_file_info
cifs: fix writeback race with file that is growing
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Commit 6bdf6dbd662176c0da5c3ac8ed10ac94e7776c85 caused a regression
in setattr codepath that leads to files with wrong attributes.
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
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Commit eddb079deb4 created a regression in the writepages codepath.
Previously, whenever it needed to check the size of the file, it did so
by consulting the inode->i_size field directly. With that patch, the
i_size was fetched once on entry into the writepages code and that value
was used henceforth.
If the file is changing size though (for instance, if someone is writing
to it or has truncated it), then that value is likely to be wrong. This
can lead to data corruption. Pages past the EOF at the time that the
writepages call was issued may be silently dropped and ignored because
cifs_writepages wrongly assumes that the file must have been truncated
in the interim.
Fix cifs_writepages to properly fetch the size from the inode->i_size
field instead to properly account for this possibility.
Original bug report is here:
https://bugzilla.kernel.org/show_bug.cgi?id=50991
Reported-and-Tested-by: Maxim Britov <ungifted01@gmail.com>
Reviewed-by: Suresh Jayaraman <sjayaraman@suse.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc
Pull remoteproc fix from Ohad Ben-Cohen:
"A single remoteproc fix for an error path issue reported by Ido Yariv."
* tag 'rproc-3.7-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
remoteproc: fix error path of ->find_vqs
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Eliminate an erroneous invocation of rproc_shutdown inside
the error path of rproc_virtio_find_vqs.
Reported-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
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Pull target fix from Nicholas Bellinger:
"So just a single target fix for v3.7.0 this time around from Roland to
address a aborted command bug w/ tcm_qla2xxx fabric ports.
Also, there is one outstanding IBLOCK + virtio-blk bug that is still
being tracked down effecting v3.6.x, but AFAICT thus far this appears
to be a bug outside of target code."
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
target: Fix handling of aborted commands
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- If we stop processing an already-aborted command in
target_execute_cmd(), then we need to complete t_transport_stop_comp
to wake up the the TMR handling thread, or else it will end up
waiting forever.
- If we've a already sent an "aborted" status for a command in
transport_check_aborted_status() then we should bail out of
transport_send_task_abort() to avoid freeing the command twice.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@risingtidesystems.com>
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Pull DRM fixes from Dave Airlie:
"Just driver fixes, nothing major, except maybe the Ironlake rc6
disable:
- intel:
* revert ironlake rc6 - we still have one ilk regression, but this
gets rid of one big one
* turn off cloning
* a directed fix for Apple edp
- radeon: one modesetting fix
- exynos: minor fixes"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
radeon: fix pll/ctrc mapping on dce2 and dce3 hardware
Revert "drm/i915: enable rc6 on ilk again"
drm/i915: do not default to 18 bpp for eDP if missing from VBT
drm/exynos: Fix potential NULL pointer dereference in exynos_drm_encoder.c
drm/exynos: Make exynos4/5_fimd_driver_data static
drm/exynos: fix overlay updating issue
drm/exynos: remove unnecessary code.
drm/exynos: fix linux framebuffer address setting.
drm/i915: disable cloning on sdvo
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Just a single pll/crtc regression fix.
* 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux:
radeon: fix pll/ctrc mapping on dce2 and dce3 hardware
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This fix black screen on resume issue that some people are
experiencing. There is a bug in the atombios code regarding
pll/crtc mapping. The atombios code reverse the logic for
the pll and crtc mapping.
agd5f: drop unnecessary crtc id check, cc stable in case
we miss 3.7.
This fixes the root cause that was worked around by commits:
drm/radeon: allocate PPLLs from low to high
drm/radeon/dce3: switch back to old pll allocation order for discrete
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos
Inki writes:
This pull request fixes minor issues and includes code cleanup.
* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm/exynos: Fix potential NULL pointer dereference in exynos_drm_encoder.c
drm/exynos: Make exynos4/5_fimd_driver_data static
drm/exynos: fix overlay updating issue
drm/exynos: remove unnecessary code.
drm/exynos: fix linux framebuffer address setting.
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Check overlay_ops is not NULL as checked in the previous 'if' condition.
Fixes the following smatch error:
drivers/gpu/drm/exynos/exynos_drm_encoder.c:509 exynos_drm_encoder_plane_disable()
error: we previously assumed 'overlay_ops' could be null (see line 499)
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
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Fixes the following sparse warnings:
drivers/gpu/drm/exynos/exynos_drm_fimd.c:65:25: warning:
symbol 'exynos4_fimd_driver_data' was not declared. Should it be static?
drivers/gpu/drm/exynos/exynos_drm_fimd.c:69:25: warning:
symbol 'exynos5_fimd_driver_data' was not declared. Should it be static?
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
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Chagelog v2:
Move encoder's dpms updating into exynos_drm_encoder_commit
function because when crtc's dpms is updated, encoder's dpms
is updated also. This would induce the issue that encoder
isn't disabled after crtc is disabled.
Changelog v1:
This patch fixes a issue that overlay data aren't applied
to real hardware when dpms off goes to on after setcrtc
was requested like below,
dpms off -> setcrtc -> dpms off -> dpms on
For this, it makes encoder's dpms to be updated when
setcrtc is requested.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
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plane->fb will be set to new fb after update_plane callback is called
by drm_mode_set_plane()
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
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With iommu, buffer->dma_addr has device addres so this patch
fixes for physical address to be set to fix.smem_start always.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
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Daniel writes:
- Unbreak mbp retina, this time with a much more fine-grained approach
(since the previous "completely ignore edp vbt bpp value" regressed some
machines even after fixing a bug in our dp bw code).
- Disable cloning on sdvo. It just doesn't work (yeah took us a while to
figure out), leading to jittery outputs in the best case.
- Revert rc6 for ilk again. It seems to help a few of the gpu hang
reporters at least, and it's definitely the best we've got.
Head-against-the-wall-banging is still ongoing for what really breaks
(and how we can reproduce the non-rc6 hangs and how to reproduce on
gen4).
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
Revert "drm/i915: enable rc6 on ilk again"
drm/i915: do not default to 18 bpp for eDP if missing from VBT
drm/i915: disable cloning on sdvo
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Even with the cumulative set of ilk w/a, rc6 is demonstrably still
failing and causing GPU hangs as found by Peter Wu. So we need to disable
it again until it is stable.
This reverts
commit 456470eb583f063ee84c6818251e638598be0fb8
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed Aug 8 23:35:40 2012 +0200
drm/i915: enable rc6 on ilk again
and the follow-on
commit cd7988eea561a70a4f98e431c1395f913672d626
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sun Aug 26 20:33:18 2012 +0200
drm/i915: disable rc6 on ilk when vt-d is enabled
Note: The situation around the gen4/5 gpu hangs that cropped up in 3.7
is rather strange. Most useful bisects have lead to
commit 6c085a728cf000ac1865d66f8c9b52935558b328
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon Aug 20 11:40:46 2012 +0200
drm/i915: Track unbound pages
or even later commits that affect the gem bo recycling, which all is
way past the point where we re-enabled rc6. But somehow
reverting/disabling those commits doesn't help, but disabling rc6 at
least helps for many hangs on ilk. Obviously it doesn't change
anything at all on gen4, and there are still strange issues left on
gen5 (which we unfortunately can't readily reproduce).
Also, the error_state signature of the hangs which can be fixed with
this patch look remarkably different to those which seem to be
unaffected by the rc6 settings: The rc6 hangs are in the ring,
somewhere in the MI_FLUSH/PIPE_CONTROL sequence to make ilk coherent,
wheras all the other hangs tend to be at a random point in the middle
of the user batch. So it could also be that we have different issues.
Until we grow more clue, this at least helps some users.
Reported-by: Peter Wu <lekensteyn@gmail.com>
References: https://bugs.freedesktop.org/show_bug.cgi?id=55984
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Added note with some more details about the gen4/5 3.7
gpu hang regression.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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commit 500a8cc466a24e2fbc4c86ef9c6467ae2ffdeb0c
Author: Zhenyu Wang <zhenyuw@linux.intel.com>
Date: Wed Jan 13 11:19:52 2010 +0800
drm/i915: parse eDP panel color depth from VBT block
originally introduced parsing bpp for eDP from VBT, with a default of 18
bpp if the eDP BIOS data block is not present. Turns out that default seems
to break the Macbook Pro with retina display, as noted in
commit 4344b813f105a19f793f1fd93ad775b784648b95
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Fri Aug 10 11:10:20 2012 +0200
drm/i915: ignore eDP bpc settings from vbt
Since we can't ignore bpc settings from VBT completely after all, get rid
of the default. Do not clamp eDP to 18 bpp by default if the eDP BDB is
missing from VBT.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Tested-by: Henrik Rydberg <rydberg@euromail.se>
[danvet: paste in the updated commit message from irc.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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After the recent pile of disable-cloning patches, e.g.
commit e3b86d6941c7e5f90be05d986fce1fcb40c68d6b
Author: Egbert Eich <eich@suse.de>
Date: Sat Oct 13 14:30:15 2012 +0200
DRM/i915: Don't clone SDVO LVDS with analog
and a bug report from Chris Wilson indicating that cloning doesn't
even work for DVI-SDVO and native VGA, let's just disable cloning on
sdvo encoders completely.
v2: Update the comment in the code as discussed with Paulo Zanoni.
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29259
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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