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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
Only GVT fixes:
- Two warnings fix for runtime pm and usr copy (Xiong, Zhenyu)
- OA context fix for vGPU profiling (Min)
- privilege batch buffer reloc fix (Fred)
* tag 'drm-intel-fixes-2018-03-15' of git://anongit.freedesktop.org/drm/drm-intel:
drm/i915/gvt: fix user copy warning by whitelist workload rb_tail field
drm/i915/gvt: Correct the privilege shadow batch buffer address
drm/i915/gvt: keep oa config in shadow ctx
drm/i915/gvt: Add runtime_pm_get/put into gvt_switch_mmio
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nouveau regression fixes.
* 'linux-4.16' of git://github.com/skeggsb/linux:
drm/nouveau/bl: fix backlight regression
drm/nouveau/bl: Fix oops on driver unbind
drm/nouveau/mmu: ALIGN_DOWN correct variable
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Fixes: 3c66c87dc9 ("drm/nouveau/disp: remove hw-specific customisation
of output paths")
Suggested-by: Ben Skeggs <skeggsb@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Unbinding nouveau on a dual GPU MacBook Pro oopses because we iterate
over the bl_connectors list in nouveau_backlight_exit() but skipped
initializing it in nouveau_backlight_init(). Stacktrace for posterity:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
IP: nouveau_backlight_exit+0x2b/0x70 [nouveau]
nouveau_display_destroy+0x29/0x80 [nouveau]
nouveau_drm_unload+0x65/0xe0 [nouveau]
drm_dev_unregister+0x3c/0xe0 [drm]
drm_put_dev+0x2e/0x60 [drm]
nouveau_drm_device_remove+0x47/0x70 [nouveau]
pci_device_remove+0x36/0xb0
device_release_driver_internal+0x157/0x220
driver_detach+0x39/0x70
bus_remove_driver+0x51/0xd0
pci_unregister_driver+0x2a/0xa0
nouveau_drm_exit+0x15/0xfb0 [nouveau]
SyS_delete_module+0x18c/0x290
system_call_fast_compare_end+0xc/0x6f
Fixes: b53ac1ee12a3 ("drm/nouveau/bl: Do not register interface if Apple GMUX detected")
Cc: stable@vger.kernel.org # v4.10+
Cc: Pierre Moreau <pierre.morrow@free.fr>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Commit 7110c89bb8852ff8b0f88ce05b332b3fe22bd11e ("mmu: swap out round
for ALIGN") replaced two calls to round/rounddown with ALIGN/ALIGN_DOWN,
but erroneously applied ALIGN_DOWN to a different variable (addr) and left
intended variable (tail) not rounded/ALIGNed.
As a result screen corruption, X lockups are observable. An example of kernel
log of affected system with NV98 card where it was bisected:
nouveau 0000:01:00.0: gr: TRAP_M2MF 00000002 [IN]
nouveau 0000:01:00.0: gr: TRAP_M2MF 00320951 400007c0 00000000 04000000
nouveau 0000:01:00.0: gr: 00200000 [] ch 1 [000fbbe000 DRM] subc 4 class 5039
mthd 0100 data 00000000
nouveau 0000:01:00.0: fb: trapped read at 0040000000 on channel 1
[0fbbe000 DRM]
engine 00 [PGRAPH] client 03 [DISPATCH] subclient 04 [M2M_IN] reason 00000006
[NULL_DMAOBJ]
Fixes bug 105173 ("[MCP79][Regression] Unhandled NULL pointer dereference in
nvkm_object_unmap since kernel 4.15")
https://bugs.freedesktop.org/show_bug.cgi?id=105173
Fixes: 7110c89bb885 ("mmu: swap out round for ALIGN ")
Tested-by: Pierre Moreau <pierre.morrow@free.fr>
Reviewed-by: Pierre Moreau <pierre.morrow@free.fr>
Signed-off-by: Maris Nartiss <maris.nartiss@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org # v4.15+
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drm-intel-fixes
gvt-fixes-2018-03-15
- Two warnings fix for runtime pm and usr copy (Xiong, Zhenyu)
- OA context fix for vGPU profiling (Min)
- privilege batch buffer reloc fix (Fred)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180315100023.5n5a74afky6qinoh@zhen-hp.sh.intel.com
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This is to fix warning got as:
[ 6730.476938] ------------[ cut here ]------------
[ 6730.476979] Bad or missing usercopy whitelist? Kernel memory exposure attempt detected from SLAB object 'gvt-g_vgpu_workload' (offset 120, size 4)!
[ 6730.477021] WARNING: CPU: 2 PID: 441 at mm/usercopy.c:81 usercopy_warn+0x7e/0xa0
[ 6730.477042] Modules linked in: tun(E) bridge(E) stp(E) llc(E) kvmgt(E) x86_pkg_temp_thermal(E) vfio_mdev(E) intel_powerclamp(E) mdev(E) coretemp(E) vfio_iommu_type1(E) vfio(E) kvm_intel(E) kvm(E) hid_generic(E) irqbypass(E) crct10dif_pclmul(E) crc32_pclmul(E) usbhid(E) i915(E) crc32c_intel(E) hid(E) ghash_clmulni_intel(E) pcbc(E) aesni_intel(E) aes_x86_64(E) crypto_simd(E) cryptd(E) glue_helper(E) intel_cstate(E) idma64(E) evdev(E) virt_dma(E) iTCO_wdt(E) intel_uncore(E) intel_rapl_perf(E) intel_lpss_pci(E) sg(E) shpchp(E) mei_me(E) pcspkr(E) iTCO_vendor_support(E) intel_lpss(E) intel_pch_thermal(E) prime_numbers(E) mei(E) mfd_core(E) video(E) acpi_pad(E) button(E) binfmt_misc(E) ip_tables(E) x_tables(E) autofs4(E) ext4(E) crc16(E) mbcache(E) jbd2(E) fscrypto(E) sd_mod(E) e1000e(E) xhci_pci(E) sdhci_pci(E)
[ 6730.477244] ptp(E) cqhci(E) xhci_hcd(E) pps_core(E) sdhci(E) mmc_core(E) i2c_i801(E) usbcore(E) thermal(E) fan(E)
[ 6730.477276] CPU: 2 PID: 441 Comm: gvt workload 0 Tainted: G E 4.16.0-rc1-gvt-staging-0213+ #127
[ 6730.477303] Hardware name: /NUC6i5SYB, BIOS SYSKLi35.86A.0039.2016.0316.1747 03/16/2016
[ 6730.477326] RIP: 0010:usercopy_warn+0x7e/0xa0
[ 6730.477340] RSP: 0018:ffffba6301223d18 EFLAGS: 00010286
[ 6730.477355] RAX: 0000000000000000 RBX: ffff8f41caae9838 RCX: 0000000000000006
[ 6730.477375] RDX: 0000000000000007 RSI: 0000000000000082 RDI: ffff8f41dad166f0
[ 6730.477395] RBP: 0000000000000004 R08: 0000000000000576 R09: 0000000000000000
[ 6730.477415] R10: ffffffffb1293fb2 R11: 00000000ffffffff R12: 0000000000000001
[ 6730.477447] R13: ffff8f41caae983c R14: ffff8f41caae9838 R15: 00007f183ca2b000
[ 6730.477467] FS: 0000000000000000(0000) GS:ffff8f41dad00000(0000) knlGS:0000000000000000
[ 6730.477489] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6730.477506] CR2: 0000559462817291 CR3: 000000028b46c006 CR4: 00000000003626e0
[ 6730.477526] Call Trace:
[ 6730.477537] __check_object_size+0x9c/0x1a0
[ 6730.477562] __kvm_write_guest_page+0x45/0x90 [kvm]
[ 6730.477585] kvm_write_guest+0x46/0x80 [kvm]
[ 6730.477599] kvmgt_rw_gpa+0x9b/0xf0 [kvmgt]
[ 6730.477642] workload_thread+0xa38/0x1040 [i915]
[ 6730.477659] ? do_wait_intr_irq+0xc0/0xc0
[ 6730.477673] ? finish_wait+0x80/0x80
[ 6730.477707] ? clean_workloads+0x120/0x120 [i915]
[ 6730.477722] kthread+0x111/0x130
[ 6730.477733] ? _kthread_create_worker_on_cpu+0x60/0x60
[ 6730.477750] ? exit_to_usermode_loop+0x6f/0xb0
[ 6730.477766] ret_from_fork+0x35/0x40
[ 6730.477777] Code: 48 c7 c0 20 e3 25 b1 48 0f 44 c2 41 50 51 41 51 48 89 f9 49 89 f1 4d 89 d8 4c 89 d2 48 89 c6 48 c7 c7 78 e3 25 b1 e8 b2 bc e4 ff <0f> ff 48 83 c4 18 c3 48 c7 c6 09 d0 26 b1 49 89 f1 49 89 f3 eb
[ 6730.477849] ---[ end trace cae869c1c323e45a ]---
By whitelist guest page write from workload struct allocated from kmem cache.
Reviewed-by: Hang Yuan <hang.yuan@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
(cherry picked from commit 5627705406874df57fdfad3b4e0c9aedd3b007df)
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Once the ring buffer is copied to ring_scan_buffer and scanned,
the shadow batch buffer start address is only updated into
ring_scan_buffer, not the real ring address allocated through
intel_ring_begin in later copy_workload_to_ring_buffer.
This patch is only to set the right shadow batch buffer address
from Ring buffer, not include the shadow_wa_ctx.
v2:
- refine some comments. (Zhenyu)
v3:
- fix typo in title. (Zhenyu)
v4:
- remove the unnecessary comments. (Zhenyu)
- add comments in bb_start_cmd_va update. (Zhenyu)
Fixes: 0a53bc07f044 ("drm/i915/gvt: Separate cmd scan from request allocation")
Cc: stable@vger.kernel.org # v4.15
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Yulei Zhang <yulei.zhang@intel.com>
Signed-off-by: fred gao <fred.gao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- 1 display fix for bxt
- 1 gem fix for fences
- 1 gem/pm fix for rps freq
* tag 'drm-intel-fixes-2018-03-14' of git://anongit.freedesktop.org/drm/drm-intel:
drm/i915: Kick the rps worker when changing the boost frequency
drm/i915: Only prune fences after wait-for-all
drm/i915: Enable VBT based BL control for DP
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into drm-fixes
A few fixes for 4.16:
- Fix a backlight S/R regression on amdgpu
- Fix prime teardown on radeon and amdgpu
- DP fix for amdgpu
* 'drm-fixes-4.16' of git://people.freedesktop.org/~agd5f/linux:
drm/amdgpu/dce: Don't turn off DP sink when disconnected
drm/amdgpu: save/restore backlight level in legacy dce code
drm/radeon: fix prime teardown order
drm/amdgpu: fix prime teardown order
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Turning off the sink in this case causes various issues, because
userspace expects it to stay on until it turns it off explicitly.
Instead, turn the sink off and back on when a display is connected
again. This dance seems necessary for link training to work correctly.
Bugzilla: https://bugs.freedesktop.org/105308
Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Save/restore the backlight level scratch register in S3/S4 so the
backlight level comes back at the previously requested level.
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=199047
Fixes: 4ec6ecf48c64d (drm/amdgpu: drop scratch regs save and restore from S3/S4 handling)
Acked-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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We unmapped imported DMA-bufs when the GEM handle was dropped, not when the
hardware was done with the buffere.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
CC: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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We unmapped imported DMA-bufs when the GEM handle was dropped, not when the
hardware was done with the buffere.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
CC: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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The boost frequency is only applied from the RPS worker while someone is
waiting on a request and requested a boost. As such, when the user
wishes to change the frequency, we have to kick the worker in order to
re-evaluate whether to apply the boost frequency.
v2: Check num_waiters to decide if we should kick the worker to handle
boosting.
Fixes: 29ecd78d3b79 ("drm/i915: Define a separate variable and control for RPS waitboost frequency")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180308142648.4016-1-chris@chris-wilson.co.uk
(cherry picked from commit 59cd31f177b34deb834a5c97478502741be1cf2e)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Currently, we only allow ourselves to prune the fences so long as
all the waits completed (i.e. all the fences we checked were signaled),
and that the reservation snapshot did not change across the wait.
However, if we only waited for a subset of the reservation object, i.e.
just waiting for the last writer to complete as opposed to all readers
as well, then we would erroneously conclude we could prune the fences as
indeed although all of our waits were successful, they did not represent
the totality of the reservation object.
v2: We only need to check the shared fences due to construction (i.e.
all of the shared fences will be later than the exclusive fence, if
any).
Fixes: e54ca9774777 ("drm/i915: Remove completed fences after a wait")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180307171303.29466-1-chris@chris-wilson.co.uk
(cherry picked from commit fa73055b8442c97b3ba7cd0aa57cd2ad32124201)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Currently, BXT_PP is hardcoded with value '0'.
It practically disabled eDP backlight on MRB (BXT) platform.
This patch will tell which BXT_PP registers (there are two set of
PP_CONTROL in the spec) to be used as defined in VBT (Video Bios Timing
table) and this will enabled eDP backlight controller on MRB (BXT)
platform.
v2:
- Remove unnecessary information in commit message.
- Assign vbt.backlight.controller to a backlight_controller variable and
return the variable value.
v3:
- Rebased to latest code base.
- updated commit title.
Signed-off-by: Mustamin B Mustaffa <mustamin.b.mustaffa@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180227030734.37901-1-mustamin.b.mustaffa@intel.com
(cherry picked from commit 73c0fcac97bf7f4a6a61b825b205d1cf127cfca7)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Thomas Gleixner:
"Just a single fix which adds a missing Kconfig dependency to avoid
unmet dependency warnings"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/atmel-st: Add 'depends on HAS_IOMEM' to fix unmet dependency
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git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"Two small fixes are for this cycle:
- fix max_chunk_size for rcar-dmac for R-Car Gen3
- fix clock resource of mv_xor_v2"
* tag 'dmaengine-fix-4.16-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: mv_xor_v2: Fix clock resource by adding a register clock
dmaengine: rcar-dmac: fix max_chunk_size for R-Car Gen3
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fix from Linus Walleij:
"This is a single GPIO fix for the v4.16 series affecting the Renesas
driver, and fixes wakeup from external stuff"
* tag 'gpio-v4.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: rcar: Use wakeup_path i.s.o. explicit clock handling
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On the CP110 components which are present on the Armada 7K/8K SoC we need
to explicitly enable the clock for the registers. However it is not
needed for the AP8xx component, that's why this clock is optional.
With this patch both clock have now a name, but in order to be backward
compatible, the name of the first clock is not used. It allows to still
use this clock with a device tree using the old binding.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
- f71808e_wdt: Fix magic close handling
- sbsa: 32-bit read fix for WCV
- hpwdt: Remove legacy NMI sourcing
* tag 'linux-watchdog-4.16-fixes-2' of git://www.linux-watchdog.org/linux-watchdog:
watchdog: hpwdt: Remove legacy NMI sourcing.
watchdog: sbsa: use 32-bit read for WCV
watchdog: f71808e_wdt: Fix magic close handling
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Pull block fixes from Jens Axboe:
- a xen-blkfront fix from Bhavesh with a multiqueue fix when
detaching/re-attaching
- a few important NVMe fixes, including a revert for a sysfs fix that
caused some user space confusion
- two bcache fixes by way of Michael Lyle
- a loop regression fix, fixing an issue with lost writes on DAX.
* tag 'for-linus-20180309' of git://git.kernel.dk/linux-block:
loop: Fix lost writes caused by missing flag
nvme_fc: rework sqsize handling
nvme-fabrics: Ignore nr_io_queues option for discovery controllers
xen-blkfront: move negotiate_mq to cover all cases of new VBDs
Revert "nvme: create 'slaves' and 'holders' entries for hidden controllers"
bcache: don't attach backing with duplicate UUID
bcache: fix crashes in duplicate cache device register
nvme: pci: pass max vectors as num_possible_cpus() to pci_alloc_irq_vectors
nvme-pci: Fix EEH failure on ppc
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix an uninitialized variable false warning in dm bufio
- Fix DM's passthrough ioctl support to be race free against an
underlying device being removed.
- Fix corner-case of DM raid resync reporting if/when the raid becomes
degraded during resync; otherwise automated raid repair will fail.
- A few DM multipath fixes to make non-SCSI optimizations, that were
introduced during the 4.16 merge, useful for all non-SCSI devices,
rather than narrowly define this non-SCSI mode in terms of "nvme".
This allows the removal of "queue_mode nvme" that really didn't need
to be introduced. Instead DM core will internalize whether
nvme-specific IO submission optimizations are doable and DM multipath
will only do SCSI-specific device handler operations if SCSI is in
use.
* tag 'for-4.16/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm table: allow upgrade from bio-based to specialized bio-based variant
dm mpath: remove unnecessary NVMe branching in favor of scsi_dh checks
dm table: fix "nvme" test
dm raid: fix incorrect sync_ratio when degraded
dm: use blkdev_get rather than bdgrab when issuing pass-through ioctl
dm bufio: avoid false-positive Wmaybe-uninitialized warning
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Pull rdma fixes from Doug Ledford:
- Various driver bug fixes in mlx5, mlx4, bnxt_re and qedr, ranging
from bugs under load to bad error case handling
- There in one largish patch fixing the locking in bnxt_re to avoid a
machine hard lock situation
- A few core bugs on error paths
- A patch to reduce stack usage in the new CQ API
- One mlx5 regression introduced in this merge window
- There were new syzkaller scripts written for the RDMA subsystem and
we are fixing issues found by the bot
- One of the commits (aa0de36a40f4 “RDMA/mlx5: Fix integer overflow
while resizing CQ”) is missing part of the commit log message and one
of the SOB lines. The original patch was from Leon Romanovsky, and a
cut-n-paste separator in the commit message confused patchworks which
then put the end of message separator in the wrong place in the
downloaded patch, and I didn’t notice in time. The patch made it into
the official branch, and the only way to fix it in-place was to
rebase. Given the pain that a rebase causes, and the fact that the
patch has relevant tags for stable and syzkaller, a revert of the
munged patch and a reapplication of the original patch with the log
message intact was done.
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (25 commits)
RDMA/mlx5: Fix integer overflow while resizing CQ
Revert "RDMA/mlx5: Fix integer overflow while resizing CQ"
RDMA/ucma: Check that user doesn't overflow QP state
RDMA/mlx5: Fix integer overflow while resizing CQ
RDMA/ucma: Limit possible option size
IB/core: Fix possible crash to access NULL netdev
RDMA/bnxt_re: Avoid Hard lockup during error CQE processing
RDMA/core: Reduce poll batch for direct cq polling
IB/mlx5: Fix an error code in __mlx5_ib_modify_qp()
IB/mlx5: When not in dual port RoCE mode, use provided port as native
IB/mlx4: Include GID type when deleting GIDs from HW table under RoCE
IB/mlx4: Fix corruption of RoCEv2 IPv4 GIDs
RDMA/qedr: Fix iWARP write and send with immediate
RDMA/qedr: Fix kernel panic when running fio over NFSoRDMA
RDMA/qedr: Fix iWARP connect with port mapper
RDMA/qedr: Fix ipv6 destination address resolution
IB/core : Add null pointer check in addr_resolve
RDMA/bnxt_re: Fix the ib_reg failure cleanup
RDMA/bnxt_re: Fix incorrect DB offset calculation
RDMA/bnxt_re: Unconditionly fence non wire memory operations
...
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git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver fixes from Darren Hart:
"Correct a module loading race condition between the DELL_SMBIOS
backend modules and the first user by converting them to bool features
of the DELL_SMBIOS driver. Fixup the resulting Kconfig dependency
issue with DCDBAS"
* tag 'platform-drivers-x86-v4.16-6' of git://git.infradead.org/linux-platform-drivers-x86:
platform/x86: dell-smbios: Resolve dependency error on DCDBAS
platform/x86: Allow for SMBIOS backend defaults
platform/x86: dell-smbios: Link all dell-smbios-* modules together
platform/x86: dell-smbios: Rename dell-smbios source to dell-smbios-base
platform/x86: dell-smbios: Correct some style warnings
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fix from Juergen Gross:
"Just one fix for the correct error handling after a failed
device_register()"
* tag 'for-linus-4.16a-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: xenbus: use put_device() instead of kfree()
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- The SMCCC firmware interface for the spectre variant 2 mitigation has
been updated to allow the discovery of whether the CPU needs the
workaround. This pull request relaxes the kernel check on the return
value from firmware.
- Fix the commit allowing changing from global to non-global page table
entries which inadvertently disallowed other safe attribute changes.
- Fix sleeping in atomic during the arm_perf_teardown_cpu() code.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Relax ARM_SMCCC_ARCH_WORKAROUND_1 discovery
arm_pmu: Use disable_irq_nosync when disabling SPI in CPU teardown hook
arm64: mm: fix thinko in non-global page table attribute check
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The user can provide very large cqe_size which will cause to integer
overflow as it can be seen in the following UBSAN warning:
=======================================================================
UBSAN: Undefined behaviour in drivers/infiniband/hw/mlx5/cq.c:1192:53
signed integer overflow:
64870 * 65536 cannot be represented in type 'int'
CPU: 0 PID: 267 Comm: syzkaller605279 Not tainted 4.15.0+ #90 Hardware
name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.7.5-0-ge51488c-20140602_164612-nilsson.home.kraxel.org 04/01/2014
Call Trace:
dump_stack+0xde/0x164
? dma_virt_map_sg+0x22c/0x22c
ubsan_epilogue+0xe/0x81
handle_overflow+0x1f3/0x251
? __ubsan_handle_negate_overflow+0x19b/0x19b
? lock_acquire+0x440/0x440
mlx5_ib_resize_cq+0x17e7/0x1e40
? cyc2ns_read_end+0x10/0x10
? native_read_msr_safe+0x6c/0x9b
? cyc2ns_read_end+0x10/0x10
? mlx5_ib_modify_cq+0x220/0x220
? sched_clock_cpu+0x18/0x200
? lookup_get_idr_uobject+0x200/0x200
? rdma_lookup_get_uobject+0x145/0x2f0
ib_uverbs_resize_cq+0x207/0x3e0
? ib_uverbs_ex_create_cq+0x250/0x250
ib_uverbs_write+0x7f9/0xef0
? cyc2ns_read_end+0x10/0x10
? print_irqtrace_events+0x280/0x280
? ib_uverbs_ex_create_cq+0x250/0x250
? uverbs_devnode+0x110/0x110
? sched_clock_cpu+0x18/0x200
? do_raw_spin_trylock+0x100/0x100
? __lru_cache_add+0x16e/0x290
__vfs_write+0x10d/0x700
? uverbs_devnode+0x110/0x110
? kernel_read+0x170/0x170
? sched_clock_cpu+0x18/0x200
? security_file_permission+0x93/0x260
vfs_write+0x1b0/0x550
SyS_write+0xc7/0x1a0
? SyS_read+0x1a0/0x1a0
? trace_hardirqs_on_thunk+0x1a/0x1c
entry_SYSCALL_64_fastpath+0x1e/0x8b
RIP: 0033:0x433549
RSP: 002b:00007ffe63bd1ea8 EFLAGS: 00000217
=======================================================================
Cc: syzkaller <syzkaller@googlegroups.com>
Cc: <stable@vger.kernel.org> # 3.13
Fixes: bde51583f49b ("IB/mlx5: Add support for resize CQ")
Reported-by: Noa Osherovich <noaos@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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The original commit of this patch has a munged log message that is
missing several of the tags the original author intended to be on the
patch. This was due to patchworks misinterpreting a cut-n-paste
separator line as an end of message line and munging the mbox that was
used to import the patch:
https://patchwork.kernel.org/patch/10264089/
The original patch will be reapplied with a fixed commit message so the
proper tags are applied.
This reverts commit aa0de36a40f446f5a21a7c1e677b98206e242edb.
Signed-off-by: Doug Ledford <dledford@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
- fix sparc build issue when OF_IRQ not enabled (Guenter Roeck)
- fix enumeration of devices below switches on DesignWare-based
controllers (Koen Vandeputte)
* tag 'pci-v4.16-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: dwc: Fix enumeration end when reaching root subordinate
PCI: Move of_irq_parse_and_map_pci() declaration under OF_IRQ
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Pull fbdev fix from Bartlomiej Zolnierkiewicz:
"Just a single fix to close a kernel data leak in FBIOGETCMAP_SPARC
ioctl"
* tag 'fbdev-v4.16-rc5' of git://github.com/bzolnier/linux:
fbdev: Fixing arbitrary kernel leak in case FBIOGETCMAP_SPARC in sbusfb_ioctl_helper().
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git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"There are a small set of sun4i and i915 fixes, and many more amdgpu
fixes:
sun4i:
- divide by zero fix
- clock and LVDS fixes
i915:
- fix for perf
- race fix
amdgpu:
- a bit more than we are normally comfortable with at this point,
however it does fix a lot of display issues with the new DC code
which result in black screens in various configurations along with
some run of the mill gpu configuration fixes.
I'm happy enough that the fixes are limited to the DC code and
should fix a bunch of issues on the new raven ridge APUs that we
are seeing shipped now"
* tag 'drm-fixes-for-v4.16-rc5' of git://people.freedesktop.org/~airlied/linux: (42 commits)
drm/amd/display: validate plane format on primary plane
drm/amdgpu:Always save uvd vcpu_bo in VM Mode
drm/amdgpu:Correct max uvd handles
drm/amd/display: early return if not in vga mode in disable_vga
drm/amd/display: Fix takover from VGA mode
drm/amd/display: Fix memleaks when atomic check fails.
drm/amd/display: Return success when enabling interrupt
drm/amd/display: Use crtc enable/disable_vblank hooks
drm/amd/display: update infoframe after dig fe is turned on
drm/amd/display: fix boot-up on vega10
drm/amd/display: fix cursor related Pstate hang
drm/amd/display: Set irq state only on existing crtcs
drm/amd/display: Fixed non-native modes not lighting up
drm/amd/display: Call update_stream_signal directly from amdgpu_dm
drm/amd/display: Make create_stream_for_sink more consistent
drm/amd/display: Don't block dual-link DVI modes
drm/amd/display: Don't allow dual-link DVI on all ASICs.
drm/amd/display: Pass signal directly to enable_tmds_output
drm/amd/display: Remove unnecessary fail labels in create_stream_for_sink
drm/amd/display: Move MAX_TMDS_CLOCK define to header
...
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When the DELL_SMBIOS_SMM backend is enabled, the DELL_SMBIOS symbol
depends on DELL_DCDBAS, and we must avoid the situation where
DELL_SMBIOS=y and DCDBAS=m.
Adding the conditional dependency to DELL_SMBIOS such as:
depends !DELL_SMBIOS_SMM || (DCDBAS || DCDBAS=n)
results in the Kconfig tooling complaining about a circular dependency,
although it appears to work in practice.
Avoid the errors by simplifying the dependency and forcing DELL_SMBIOS
to be <= DCDBAS if DCDBAS is enabled (thanks to Greg KH for the
suggestion).
Cc: Mario.Limonciello@dell.com
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
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Avoid accidental configurations by setting default y for DELL_SMBIOS
backends. Avoid this impacting the default build size, by making them
dependent on DELL_SMBIOS, so they only appear when DELL_SMBIOS is
manually selected, or by DELL_LAPTOP or DELL_WMI.
While DELL_SMBIOS does have a prompt, it does not have any dependencies.
Keeping DELL_SMBIOS visible, despite being "select"ed by DELL_LAPTOP and
DELL_WMI, is a deliberate choice to provide context for the WMI and SMM
backends, which would otherwise appear to float without context within
the menu.
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
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Some race conditions were raised due to dell-smbios and its backends
not being ready by the time that a consumer would call one of the
exported methods.
To avoid this problem, guarantee that all initialization has been
done by linking them all together and running init for them all.
As part of this change the Kconfig needs to be adjusted so that
CONFIG_DELL_SMBIOS_SMM and CONFIG_DELL_SMBIOS_WMI are boolean
rather than modules.
CONFIG_DELL_SMBIOS is a visually selectable option again and both
CONFIG_DELL_SMBIOS_WMI and CONFIG_DELL_SMBIOS_SMM are optional.
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
[dvhart: Update prompt and help text for DELL_SMBIOS_* backends]
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
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This is being done to faciliate a later change to link all the dell-smbios
drivers together.
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
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WARNING: function definition argument 'struct calling_interface_buffer *'
should also have an identifier name
+ int (*call_fn)(struct calling_interface_buffer *);
WARNING: Block comments use * on subsequent lines
+ /* 4 bytes of table header, plus 7 bytes of Dell header,
plus at least
+ 6 bytes of entry */
WARNING: Block comments use a trailing */ on a separate line
+ 6 bytes of entry */
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"One notable fix to properly advertise our support for a new firmware
feature, caused by two series conflicting semantically but not
textually.
There's a new ioctl for the new ocxl driver, which is not a fix, but
needed to complete the userspace API and good to have before the
driver is in a released kernel.
Finally three minor selftest fixes, and a fix for intermittent build
failures for some obscure platforms, caused by a missing make
dependency.
Thanks to: Alastair D'Silva, Bharata B Rao, Guenter Roeck"
* tag 'powerpc-4.16-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/pseries: Fix vector5 in ibm architecture vector table
ocxl: Document the OCXL_IOCTL_GET_METADATA IOCTL
ocxl: Add get_metadata IOCTL to share OCXL information to userspace
selftests/powerpc: Skip the subpage_prot tests if the syscall is unavailable
selftests/powerpc: Fix missing clean of pmu/lib.o
powerpc/boot: Fix random libfdt related build errors
selftests/powerpc: Skip tm-trap if transactional memory is not enabled
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The following commit:
commit aa4d86163e4e ("block: loop: switch to VFS ITER_BVEC")
replaced __do_lo_send_write(), which used ITER_KVEC iterators, with
lo_write_bvec() which uses ITER_BVEC iterators. In this change, though,
the WRITE flag was lost:
- iov_iter_kvec(&from, ITER_KVEC | WRITE, &kvec, 1, len);
+ iov_iter_bvec(&i, ITER_BVEC, bvec, 1, bvec->bv_len);
This flag is necessary for the DAX case because we make decisions based on
whether or not the iterator is a READ or a WRITE in dax_iomap_actor() and
in dax_iomap_rw().
We end up going through this path in configurations where we combine a PMEM
device with 4k sectors, a loopback device and DAX. The consequence of this
missed flag is that what we intend as a write actually turns into a read in
the DAX code, so no data is ever written.
The very simplest test case is to create a loopback device and try and
write a small string to it, then hexdump a few bytes of the device to see
if the write took. Without this patch you read back all zeros, with this
you read back the string you wrote.
For XFS this causes us to fail or panic during the following xfstests:
xfs/074 xfs/078 xfs/216 xfs/217 xfs/250
For ext4 we have a similar issue where writes never happen, but we don't
currently have any xfstests that use loopback and show this issue.
Fix this by restoring the WRITE flag argument to iov_iter_bvec(). This
causes the xfstests to all pass.
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@vger.kernel.org
Fixes: commit aa4d86163e4e ("block: loop: switch to VFS ITER_BVEC")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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When populating shadow ctx from guest, we should handle oa related
registers in hw ctx, so that they will not be overlapped by guest oa
configs. This patch made it possible to capture oa data from host for
both host and guests.
Signed-off-by: Min He <min.he@intel.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
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If user continuously create vgpu, boot guest, shoutdown guest and destroy
vgpu from remote, the following calltrace exists in dmesg sometimes:
[ 6412.954721] RPM wakelock ref not held during HW access
[ 6412.954795] WARNING: CPU: 7 PID: 11941 at
linux/drivers/gpu/drm/i915/intel_drv.h:1800
intel_uncore_forcewake_get.part.7+0x96/0xa0 [i915]
[ 6412.954915] Call Trace:
[ 6412.954951] intel_uncore_forcewake_get+0x18/0x20 [i915]
[ 6412.954989] intel_gvt_switch_mmio+0x8e/0x770 [i915]
[ 6412.954996] ? __slab_free+0x14d/0x2c0
[ 6412.955001] ? __slab_free+0x14d/0x2c0
[ 6412.955006] ? __slab_free+0x14d/0x2c0
[ 6412.955041] intel_vgpu_stop_schedule+0x92/0xd0 [i915]
[ 6412.955073] intel_gvt_deactivate_vgpu+0x48/0x60 [i915]
[ 6412.955078] __intel_vgpu_release+0x55/0x260 [kvmgt]
when this happens, gvt_switch_mmio is called at vgpu destroy, host i915 is
idle and doesn't hold RPM wakelock, igd is in powersave mode, but
gvt_switch_mmio require igd power on to access register, so
intel_runtime_pm_get should be added to make sure igd power on before
gvt_switch_mmio.
v2: Move runtime_pm_get/put into gvt_switch_mmio.(Zhenyu)
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
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The ATMEL_ST config selects MFD_SYSCON, but does not depend on HAS_IOMEM.
Compile testing on architecture without HAS_IOMEM causes "unmet direct
dependencies" in Kconfig phase. Detected by "make ARCH=score allyesconfig".
Add the proper dependency to the ATMEL_ST config.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: https://lkml.kernel.org/r/1520335233-11277-1-git-send-email-yamada.masahiro@socionext.com
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Pull NVMe fixes for this series from Keith:
"A few late fixes for 4.16:
* Reverting sysfs slave device links for native nvme multipathing.
The hidden disk attributes broke common user tools.
* A fix for a PPC pci error handling regression.
* Update pci interrupt count to consider the actual IRQ spread, fixing
potentially poor initial queue affinity.
* Off-by-one errors in nvme-fc queue sizes
* A fabrics discovery fix to be more tolerant with user tools."
* 'nvme-4.16-rc5' of git://git.infradead.org/nvme:
nvme_fc: rework sqsize handling
nvme-fabrics: Ignore nr_io_queues option for discovery controllers
Revert "nvme: create 'slaves' and 'holders' entries for hidden controllers"
nvme: pci: pass max vectors as num_possible_cpus() to pci_alloc_irq_vectors
nvme-pci: Fix EEH failure on ppc
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into drm-fixes
Fixes for 4.16. A bit bigger than I would have liked, but most of that
is DC fixes which Harry helped me pull together from the past few weeks.
Highlights:
- Fix DL DVI with DC
- Various RV fixes for DC
- Overlay fixes for DC
- Fix HDMI2 handling on boards without HBR tables in the vbios
- Fix crash with pass-through on SI on amdgpu
- Fix RB harvesting on KV
- Fix hibernation failures on UVD with certain cards
* 'drm-fixes-4.16' of git://people.freedesktop.org/~agd5f/linux: (35 commits)
drm/amd/display: validate plane format on primary plane
drm/amdgpu:Always save uvd vcpu_bo in VM Mode
drm/amdgpu:Correct max uvd handles
drm/amd/display: early return if not in vga mode in disable_vga
drm/amd/display: Fix takover from VGA mode
drm/amd/display: Fix memleaks when atomic check fails.
drm/amd/display: Return success when enabling interrupt
drm/amd/display: Use crtc enable/disable_vblank hooks
drm/amd/display: update infoframe after dig fe is turned on
drm/amd/display: fix boot-up on vega10
drm/amd/display: fix cursor related Pstate hang
drm/amd/display: Set irq state only on existing crtcs
drm/amd/display: Fixed non-native modes not lighting up
drm/amd/display: Call update_stream_signal directly from amdgpu_dm
drm/amd/display: Make create_stream_for_sink more consistent
drm/amd/display: Don't block dual-link DVI modes
drm/amd/display: Don't allow dual-link DVI on all ASICs.
drm/amd/display: Pass signal directly to enable_tmds_output
drm/amd/display: Remove unnecessary fail labels in create_stream_for_sink
drm/amd/display: Move MAX_TMDS_CLOCK define to header
...
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
sun4i fixes on clk, division by zero and LVDS.
* tag 'drm-misc-fixes-2018-03-07' of git://anongit.freedesktop.org/drm/drm-misc:
drm/sun4i: crtc: Call drm_crtc_vblank_on / drm_crtc_vblank_off
drm/sun4i: rgb: Fix potential division by zero
drm/sun4i: tcon: Reduce the scope of the LVDS error a bit
drm/sun4i: Release exclusive clock lock when disabling TCON
drm/sun4i: Fix dclk_set_phase
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git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform
Pull chrome platform fix from Benson Leung:
"Revert a problematic patch that constified something imporperly"
* tag 'chrome-platform-4.16-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform:
Revert "platform/chrome: chromeos_laptop: make chromeos_laptop const"
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Corrected four outstanding issues in the transport around sqsize.
1: Create Connection LS is sending the 1's-based sqsize, should be
sending the 0's-based value.
2: allocation of hw queue is using the 0's-base size. It should be
using the 1's-based value.
3: normalization of ctrl.sqsize by MQES is using MQES+1 (1's-based
value). It should be MQES (0's-based value).
4: Missing clause to ensure queue_count not larger than ctrl->sqsize.
Corrected by:
Clean up routines that pass queue size around. The queue size value is
the actual count (1's-based) value and determined from ctrl->sqsize + 1.
Routines that send 0's-based value adapt from queue size.
Sset ctrl->sqsize properly for MQES.
Added clause to nsure queue_count not larger than ctrl->sqsize + 1.
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <keith.busch@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus
Pull a xen_blkfront fix from Konrad:
"It has one simple fix for the multi-queue support not showing up after
a block device was detached/re-attached."
* 'stable/for-jens-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen-blkfront: move negotiate_mq to cover all cases of new VBDs
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This removes a dependency on the order options are passed when creating
a fabrics controller. With the old code, if "nr_io_queues" appears before
an "nqn" option specifying the discovery controller, then nr_io_queues
is overridden with zero. If "nr_io_queues" appears after specifying the
discovery controller, then the nr_io_queues option is used to set the
number of queues, and the driver attempts to establish IO connections
to the discovery controller (which doesn't work).
It seems better to ignore (and warn about) the "nr_io_queues" option
if userspace has already asked to connect to the discovery controller.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <keith.busch@intel.com>
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