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2014-06-10tracing: Fix leak of per cpu max data in instancesSteven Rostedt (Red Hat)
The freeing of an instance, if max data is configured, there will be per cpu data structures created. But these are not freed when the instance is deleted, which causes a memory leak. A new helper function is added that frees the individual buffers within a trace array, instead of duplicating the code. This way changes made for one are applied to the other (normal buffer vs max buffer). Link: http://lkml.kernel.org/r/87k38pbake.fsf@sejong.aot.lge.com Reported-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-06-10Merge tag 'upstream-3.16-rc1-v2' of git://git.infradead.org/linux-ubifsLinus Torvalds
Pull UBIFS updates from Artem Bityutskiy: "This contains several UBIFS fixes. One of them fixes a race condition between the mmap page fault path and fsync. Another just removes a bogus assertion from the UBIFS memory shrinker. UBIFS also started honoring the MS_SILENT mount flag, so now it won't print many I/O errors when user-space just tries to probe for the FS. Rest of the changes are rather minor UBI/UBIFS fixes, improvements, and clean-ups" * tag 'upstream-3.16-rc1-v2' of git://git.infradead.org/linux-ubifs: UBIFS: Add an assertion for clean_zn_cnt UBIFS: respect MS_SILENT mount flag UBIFS: Remove incorrect assertion in shrink_tnc() UBIFS: fix debugging check UBIFS: add missing ui pointer in debugging code UBI: block: Fix error path on alloc_workqueue failure UBIFS: Fix dump messages in ubifs_dump_lprops UBI: fix rb_tree node comparison in add_map UBIFS: Remove unused variables in ubifs_budget_space UBI: weaken the 'exclusive' constraint when opening volumes to rename UBIFS: fix an mmap and fsync race condition
2014-06-10auditsc: audit_krule mask accesses need bounds checkingAndy Lutomirski
Fixes an easy DoS and possible information disclosure. This does nothing about the broken state of x32 auditing. eparis: If the admin has enabled auditd and has specifically loaded audit rules. This bug has been around since before git. Wow... Cc: stable@vger.kernel.org Signed-off-by: Andy Lutomirski <luto@amacapital.net> Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-10bf533: fix build error: add linux/gpio.hSteven Miao
build error arch/blackfin/mach-bf533/boards/stamp.c: In function ‘stamp_init’: arch/blackfin/mach-bf533/boards/stamp.c:866: error: implicit declaration of function ‘gpio_request’ arch/blackfin/mach-bf533/boards/stamp.c:868: error: implicit declaration of function ‘gpio_direction_output’ arch/blackfin/mach-bf533/boards/stamp.c:869: error: implicit declaration of function ‘gpio_free’ Signed-off-by: Steven Miao <realmz6@gmail.com>
2014-06-10NFS: populate ->net in mount data when remountingMateusz Guzik
Otherwise the kernel oopses when remounting with IPv6 server because net is dereferenced in dev_get_by_name. Use net ns of current thread so that dev_get_by_name does not operate on foreign ns. Changing the address is prohibited anyway so this should not affect anything. Signed-off-by: Mateusz Guzik <mguzik@redhat.com> Cc: linux-nfs@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org # 3.4+ Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-06-10pnfs: fix lockup caused by pnfs_generic_pg_testWeston Andros Adamson
end_offset and req_offset both return u64 - avoid casting to u32 until it's needed, when it's less than the (u32) size returned by nfs_generic_pg_test. Also, fix the comments in pnfs_generic_pg_test. Running the cthon04 special tests caused this lockup in the "write/read at 2GB, 4GB edges" test when running against a file layout server: BUG: soft lockup - CPU#0 stuck for 22s! [bigfile2:823] Modules linked in: nfs_layout_nfsv41_files rpcsec_gss_krb5 nfsv4 nfs fscache ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_mangle ip6table_filter ip6_tables iptable_nat nf_nat_ipv4 nf_nat iptable_mangle ppdev crc32c_intel aesni_intel aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd serio_raw e1000 shpchp i2c_piix4 i2c_core parport_pc parport nfsd auth_rpcgss oid_registry exportfs nfs_acl lockd sunrpc btrfs xor zlib_deflate raid6_pq mptspi scsi_transport_spi mptscsih mptbase ata_generic floppy autofs4 irq event stamp: 205958 hardirqs last enabled at (205957): [<ffffffff814a62dc>] restore_args+0x0/0x30 hardirqs last disabled at (205958): [<ffffffff814ad96a>] apic_timer_interrupt+0x6a/0x80 softirqs last enabled at (205956): [<ffffffff8103ffb2>] __do_softirq+0x1ea/0x2ab softirqs last disabled at (205951): [<ffffffff8104026d>] irq_exit+0x44/0x9a CPU: 0 PID: 823 Comm: bigfile2 Not tainted 3.15.0-rc1-branch-pgio_plus+ #3 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/31/2013 task: ffff8800792ec480 ti: ffff880078c4e000 task.ti: ffff880078c4e000 RIP: 0010:[<ffffffffa02ce51f>] [<ffffffffa02ce51f>] nfs_page_group_unlock+0x3e/0x4b [nfs] RSP: 0018:ffff880078c4fab0 EFLAGS: 00000202 RAX: 0000000000000fff RBX: ffff88006bf83300 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff88006bf83300 RBP: ffff880078c4fab8 R08: 0000000000000001 R09: 0000000000000000 R10: ffffffff8249840c R11: 0000000000000000 R12: 0000000000000035 R13: ffff88007ffc72d8 R14: 0000000000000001 R15: 0000000000000000 FS: 00007f45f11b7740(0000) GS:ffff88007f200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3a8cb632d0 CR3: 000000007931c000 CR4: 00000000001407f0 Stack: ffff88006bf832c0 ffff880078c4fb00 ffffffffa02cec22 ffff880078c4fad8 00000fff810f9d99 ffff880078c4fca0 ffff88006bf832c0 ffff88006bf832c0 ffff880078c4fca0 ffff880078c4fd60 ffff880078c4fb28 ffffffffa02cee34 Call Trace: [<ffffffffa02cec22>] __nfs_pageio_add_request+0x298/0x34f [nfs] [<ffffffffa02cee34>] nfs_pageio_add_request+0x1f/0x42 [nfs] [<ffffffffa02d1722>] nfs_do_writepage+0x1b5/0x1e4 [nfs] [<ffffffffa02d1764>] nfs_writepages_callback+0x13/0x25 [nfs] [<ffffffffa02d1751>] ? nfs_do_writepage+0x1e4/0x1e4 [nfs] [<ffffffff810eb32d>] write_cache_pages+0x254/0x37f [<ffffffffa02d1751>] ? nfs_do_writepage+0x1e4/0x1e4 [nfs] [<ffffffff8149cf9e>] ? printk+0x54/0x56 [<ffffffff810eacca>] ? __set_page_dirty_nobuffers+0x22/0xe9 [<ffffffffa016d864>] ? put_rpccred+0x38/0x101 [sunrpc] [<ffffffffa02d1ae1>] nfs_writepages+0xb4/0xf8 [nfs] [<ffffffff810ec59c>] do_writepages+0x21/0x2f [<ffffffff810e36e8>] __filemap_fdatawrite_range+0x55/0x57 [<ffffffff810e374a>] filemap_write_and_wait_range+0x2d/0x5b [<ffffffffa030ba0a>] nfs4_file_fsync+0x3a/0x98 [nfsv4] [<ffffffff8114ee3c>] vfs_fsync_range+0x18/0x20 [<ffffffff810e40c2>] generic_file_aio_write+0xa7/0xbd [<ffffffffa02c5c6b>] nfs_file_write+0xf0/0x170 [nfs] [<ffffffff81129215>] do_sync_write+0x59/0x78 [<ffffffff8112956c>] vfs_write+0xab/0x107 [<ffffffff81129c8b>] SyS_write+0x49/0x7f [<ffffffff814acd12>] system_call_fastpath+0x16/0x1b Reported-by: Anna Schumaker <Anna.Schumaker@netapp.com> Signed-off-by: Weston Andros Adamson <dros@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-06-10ALSA: hda - Add quirk for ABit AA8XEDavid Henningsson
Bios does not set up the pin config default correctly (everything is set to zero). Reporter claims that 6stack-dig and 6stack-automute solve the problem. Alsa-info at http://www.alsa-project.org/db/?f=376c0804cbdde90bcd2cb94799407cb1cacf5d05 BugLink: https://bugs.launchpad.net/bugs/1319291 Reported-by: Stefano Statuti <stefano.statuti@hotmail.it> Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-06-10tracing: Cleanup saved_cmdlines_size changesNamhyung Kim
The recent addition of saved_cmdlines_size file had some remaining (minor - mostly coding style) issues. Fix them by passing pointer name to sizeof() and using scnprintf(). Link: http://lkml.kernel.org/p/1402384295-23680-1-git-send-email-namhyung@kernel.org Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@hitachi.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-06-10ring-buffer: Check if buffer exists before pollingSteven Rostedt (Red Hat)
The per_cpu buffers are created one per possible CPU. But these do not mean that those CPUs are online, nor do they even exist. With the addition of the ring buffer polling, it assumes that the caller polls on an existing buffer. But this is not the case if the user reads trace_pipe from a CPU that does not exist, and this causes the kernel to crash. Simple fix is to check the cpu against buffer bitmask against to see if the buffer was allocated or not and return -ENODEV if it is not. More updates were done to pass the -ENODEV back up to userspace. Link: http://lkml.kernel.org/r/5393DB61.6060707@oracle.com Reported-by: Sasha Levin <sasha.levin@oracle.com> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2014-06-10scripts: objdiff: support directories for the augument of record commandMasahiro Yamada
For example, $ scripts/objdiff record init drivers/usb disassembles all the objects under init and drivers/usb directories. This feature would be useful when we change various files under the specific directory. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10scripts: objdiff: fix a commentMasahiro Yamada
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10scripts: objdiff: change the extension of disassembly from .o to .disMasahiro Yamada
Prior to this commit, the command "scripts/objdiff record path/to/*.o" disassembled the given object into ".tmp_objdiff/path/to/*.o" file. The problem here is that recorded disassemblies are lost if we run "make clean" because it removes all the *.o files. Disassembled code should be dumped into *.dis instead of *.o files. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10scripts: objdiff: improve path flexibility for record commandMasahiro Yamada
Prior to this commit, scripts/objdiff expected to be run at the top directory and only the relative path of objects. This commit provides more flexibility in terms of object path: [1] scripts/objdiff can be run in any directory For example, $ scripts/objdiff record init/main.o and $ cd init; ../scripts/objdiff record main.o produce the same result. [2] Support absolute path for objects $ scripts/objdiff record /home/foo/bar/linux/init/main.o work as well. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10scripts: objdiff: remove unnecessary codeMasahiro Yamada
The directories for objdump is created by the code a few lines below: [ ! -d "$OBJDIFFD/$dn" ] && mkdir -p "$OBJDIFFD/$dn" Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10scripts: objdiff: direct error messages to stderrMasahiro Yamada
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10scripts: objdiff: get the path to .tmp_objdiff more simplyMasahiro Yamada
This commit is a minor refactoring. Temporary files for objdiff are stored in .tmp_objdiff directory which is located at the top directory. To get the path to this directory, SRCTREE=`git rev-parse --show-toplevel` TMPD=$SRCTREE/.tmp_objdiff seems easier to understand than GIT_DIR=`git rev-parse --git-dir` TMPD=${GIT_DIR%git}tmp_objdiff Besides, it is not always necessary to create .tmp_objdiff dicrectory. It should be created only for "record" command. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10deb-pkg: Add automatic support for s390x architectureBen Hutchings
The Debian s390x architecture has 64-bit userland whereas s390 has 32-bit userland. A 64-bit kernel can be used with either. Now that Debian supports multiarch and officially supports s390x, it makes more sense to assign a 64-bit kernel package to s390x. Reported-by: Stephen Powell <zlinuxman@wowway.com> References: https://bugs.debian.org/750925 Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10coccicheck: Add unneeded return variable testPeter Senna Tschudin
This semantic patch looks for variables that are initialized with a constant, are never updated, and are only used as parameter of return. Return the constant instead of using a variable. Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10kbuild: Fix a typo in documentationWarren Turkal
Signed-off-by: Warren Turkal <wt@penguintechs.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10kbuild: trivial - use tabs for code indent where possibleMasahiro Yamada
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10Merge branch 'drm-nouveau-next' of ↵Dave Airlie
git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next There's really not a great deal this time due to me spending most of this window on Maxwell. But, here's the random bits and pieces that's currently queued. * 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (25 commits) drm/gk208/gr: add missing registers to grctx init drm/nouveau/kms/nv04-nv40: fix pageflip events via special case. drm/nv50-/mc: fix kms pageflip events by reordering irq handling order. drm/nouveau/disp/nv04-nv40: abort scanoutpos query on vga analog. drm/nv50-/kms: wait for enough ring space in crtc_prepare() drm/nouveau/disp/dp: support training pattern 3 drm/nouveau/disp/dp: support aux read interval during link training drm/gk104/gpio: fix incorrect interrupt register usage drm/nouveau/core: punt all object state change messages to trace level drm/nouveau/clk: allow end-user reclocking for nv40, nvaa, and nve0 clock types drm/nouveau/fb: default NvMemExec to on, turning it off is used for debugging only drm/nouveau/bios: fix a potential NULL deref in the PROM shadowing function drm/nouveau/i2c: bump the i2c delay for the adt7473 drm/nouveau/therm/fan/tach: default to 2 pulses per revolution drm/nvf0/device: enable video decoding engines on gk110/gk208 drm/nvf1/device: add support for 0xf1 (gk110b) drm/nouveau/device: support for probing GK20A drm/nouveau/graph: add GK20A support drm/nouveau/graph: pad firmware code at load time drm/nouveau/graph: enable when using external fw ...
2014-06-10drm/gk208/gr: add missing registers to grctx initIlia Mirkin
This fixes hangs on GK208 which happen instantaneously on trying to use a geometry shader. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: stable@vger.kernel.org # v3.14+
2014-06-10drm/nouveau/kms/nv04-nv40: fix pageflip events via special case.Mario Kleiner
Cards with nv04 display engine can't reliably use vblank counts and timestamps computed via drm_handle_vblank(), as the function gets invoked after sending the pageflip events. Fix this by defaulting to the old crtcid = -1 fallback path on <= NV-50 cards, and only using the precise path on NV-50 and later. Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: <stable@vger.kernel.org> # 3.13+
2014-06-10drm/nv50-/mc: fix kms pageflip events by reordering irq handling order.Mario Kleiner
Whenever a single nouveau_mc_intr() main gpu irq-handler invocation was responsible for calling both, the vblank-irq handler (display engine irq) and kms-pageflip completion handler (from fifo irq), the order of invocation was wrong. nouveau_finish_flip() was called before drm_handle_vblank() for the vblank of pageflip completion, so the emitted pageflip event contained stale vblank count and timestamp from previous vblank. This caused failure in userspace to timestamp properly. Reorder order of invocation of engine irq handlers: Put NVDEV_ENGINE_DISP always on top, and thereby before NVDEV_ENGINE_FIFO, so that drm_handle_vblank() gets called to update vblank timestamps and count before potential pageflip events make use of that information. This works on nv-50 and later, where kms-pageflip completion triggers an irq either after a separate vblank irq, or both pageflip and vblank trigger one common irq invocation, but never before vblank irqs. v2 (Ben): - removed mods for nv04-nv40, it doesn't help there anyway - this is considered a hack, and a better solution should be found Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: <stable@vger.kernel.org> # 3.13+
2014-06-10drm/nouveau/disp/nv04-nv40: abort scanoutpos query on vga analog.Mario Kleiner
nv04_disp_scanoutpos() must abort to trigger simple timestamping fallback if vtotal/htotal regs return zero. This happens if the output isn't a digital output, but a vga analog output, as the regs don't get initialized in that case. Fixes timestamping failure on nv-40 and earlier with vga output. Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: <stable@vger.kernel.org> # 3.14+
2014-06-10drm/nv50-/kms: wait for enough ring space in crtc_prepare()Ben Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nouveau/disp/dp: support training pattern 3Ben Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nouveau/disp/dp: support aux read interval during link trainingBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/gk104/gpio: fix incorrect interrupt register usageBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nouveau/core: punt all object state change messages to trace levelBen Skeggs
Leave debug for the more interesting bits of info. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nouveau/clk: allow end-user reclocking for nv40, nvaa, and nve0 clock typesIlia Mirkin
Use with caution. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nouveau/fb: default NvMemExec to on, turning it off is used for ↵Ilia Mirkin
debugging only Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nouveau/bios: fix a potential NULL deref in the PROM shadowing functionMartin Peres
Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Martin Peres <martin.peres@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nouveau/i2c: bump the i2c delay for the adt7473Martin Peres
Some adt7473 can't manage the 20µs delay we use for the bitbanging, bumping it to 40µs seem to do the trick. Signed-off-by: Martin Peres <martin.peres@free.fr> Tested-by: Marcel Dopita <mdop@seznam.cz>
2014-06-10drm/nouveau/therm/fan/tach: default to 2 pulses per revolutionMartin Peres
I spent some time this weekend trying to find in the vbios the number of pulses per revolutions in the vbios but couldn't find it. It would seem all my cards have 2 pulses per revolution so let's stick to that until further notice. Thermal table's id 0x48 may indicate this information but it would seem that changing the value results in the blob power or clock gating the RPM counter... We should ask NVIDIA about that, should be trivial-enough for them to answer. Signed-off-by: Martin Peres <martin.peres@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nvf0/device: enable video decoding engines on gk110/gk208John Rowley
Only tested on nvf1, was advised to enable on all. Signed-off-by: John Rowley <john.rowley08@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nvf1/device: add support for 0xf1 (gk110b)John Rowley
Signed-off-by: John Rowley <john.rowley08@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nouveau/device: support for probing GK20AAlexandre Courbot
Set the correct subdev/engine classes when GK20A (0xea) is probed. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nouveau/graph: add GK20A supportAlexandre Courbot
Add a GR device for GK20A based on NVE4, with the correct classes definitions (GK20A's 3D class is 0xa297). Most of the NVE4 code can be used on GK20A, so make relevant bits of NVE4 available to other chips as well. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nouveau/graph: pad firmware code at load timeAlexandre Courbot
Pad the microcode to a multiple of 0x40 words, otherwise firmware will fail to run from non-prepadded firmware files. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nouveau/graph: enable when using external fwAlexandre Courbot
nvc0_graph_ctor() would only let the graphics engine be enabled if its oclass has a proper microcode linked to it. This prevents GR from being enabled at all on chips that rely exclusively on external firmware, even though such a use-case is valid. Relax the conditions enabling the GR engine to also include the case where an external firmware has also been loaded. Also switch to external firmware if the graph class has no microcode linked to it. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nouveau/fifo: add GK20A supportAlexandre Courbot
GK20A's FIFO is compatible with NVE0, but only features 128 channels and 1 runlist. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nouveau/fb: add GK20A supportAlexandre Courbot
Add a simple FB device for GK20A, as well as a RAM implementation suitable for chips that use system memory as video RAM. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nouveau/ibus: add GK20A supportAlexandre Courbot
Add support for initializing the priv ring of GK20A. This is done by the BIOS on desktop GPUs, but needs to be done by hand on Tegra. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nvc0/bar: support chips without BAR3Alexandre Courbot
Adapt the NVC0 BAR driver to make it able to support chips that do not expose a BAR3. When this happens, BAR1 is then used for USERD mapping and the BAR alloc() functions is disabled, making GPU objects unable to rely on BAR for data access and falling back to PRAMIN. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10drm/nouveau/bar: only ioremap BAR3 if it existsAlexandre Courbot
Some chips that use system memory exclusively (e.g. GK20A) do not expose 2 BAR regions. For them only BAR1 exists, and it should be used for USERD mapping. Do not map BAR3 if its resource does not exist. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-10iscsi-target: Fix ABORT_TASK + connection reset iscsi_queue_req memory leakNicholas Bellinger
This patch fixes a iscsi_queue_req memory leak when ABORT_TASK response has been queued by TFO->queue_tm_rsp() -> lio_queue_tm_rsp() after a long standing I/O completes, but the connection has already reset and waiting for cleanup to complete in iscsit_release_commands_from_conn() -> transport_generic_free_cmd() -> transport_wait_for_tasks() code. It moves iscsit_free_queue_reqs_for_conn() after the per-connection command list has been released, so that the associated se_cmd tag can be completed + released by target-core before freeing any remaining iscsi_queue_req memory for the connection generated by lio_queue_tm_rsp(). Cc: Thomas Glanzmann <thomas@glanzmann.de> Cc: Charalampos Pournaris <charpour@gmail.com> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-06-10target: Use complete_all for se_cmd->t_transport_stop_compNicholas Bellinger
This patch fixes a bug where multiple waiters on ->t_transport_stop_comp occurs due to a concurrent ABORT_TASK and session reset both invoking transport_wait_for_tasks(), while waiting for the associated se_cmd descriptor backend processing to complete. For this case, complete_all() should be invoked in order to wake up both waiters in core_tmr_abort_task() + transport_generic_free_cmd() process contexts. Cc: Thomas Glanzmann <thomas@glanzmann.de> Cc: Charalampos Pournaris <charpour@gmail.com> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-06-10target: Set CMD_T_ACTIVE bit for Task Management RequestsNicholas Bellinger
This patch fixes a bug where se_cmd descriptors associated with a Task Management Request (TMR) where not setting CMD_T_ACTIVE before being dispatched into target_tmr_work() process context. This is required in order for transport_generic_free_cmd() -> transport_wait_for_tasks() to wait on se_cmd->t_transport_stop_comp if a session reset event occurs while an ABORT_TASK is outstanding waiting for another I/O to complete. Cc: Thomas Glanzmann <thomas@glanzmann.de> Cc: Charalampos Pournaris <charpour@gmail.com> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-06-10Merge branch 'drm-next-3.16' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next Some additional patches for radeon for 3.16 now that -fixes has been merged. - Gart fix for all asics r6xx+ - Add some VM tuning parameters - misc fixes * 'drm-next-3.16' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: Move fb update from radeon_flip_work_func to radeon_crtc_page_flip drm/radeon/dpm: powertune updates for SI Revert "drm/radeon: use variable UVD clocks" drm/radeon: add query for number of active CUs drm/radeon: add debugfs file to trigger GPU reset drm/radeon: make vm_block_size a module parameter drm/radeon: make VM size a module parameter (v2) drm/radeon: rename alt_domain to allowed_domains drm/radeon: use the SDMA on for buffer moves on CIK again drm/radeon: remove range check from *_gart_set_page drm/radeon: stop poisoning the GART TLB drm/radeon: hdmi deep color modes must obey clock limit of sink. drm/edid: Store all supported hdmi deep color modes in drm_display_info drm/radeon: add missing vce init case for hawaii drm/radeon: use lower_32_bits where appropriate