Feedback has shown that WRITE_ONCE(x, val) is easier to use than
ASSIGN_ONCE(val,x).
There are no in-tree users yet, so lets change it for 3.19.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Davidlohr Bueso <dave@stgolabs.net>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This update contains 3 patches to fix one compile error,
and two run-time bugs. One of them fixes infinite loop
on ARM.
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Merge tag 'linux-kselftest-3.19-rc-5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fixes from Shuah Khan:
"This update contains three patches to fix one compile error, and two
run-time bugs. One of them fixes infinite loop on ARM"
* tag 'linux-kselftest-3.19-rc-5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/vm: fix link error for transhuge-stress test
tools: testing: selftests: mq_perf_tests: Fix infinite loop on ARM
selftests/exec: allow shell return code of 126
- Several critical linear p2m fixes that prevented some hosts from
booting.
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Merge tag 'stable/for-linus-3.19-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen bug fixes from David Vrabel:
"Several critical linear p2m fixes that prevented some hosts from
booting"
* tag 'stable/for-linus-3.19-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/xen: properly retrieve NMI reason
xen: check for zero sized area when invalidating memory
xen: use correct type for physical addresses
xen: correct race in alloc_p2m_pmd()
xen: correct error for building p2m list on 32 bits
x86/xen: avoid freeing static 'name' when kasprintf() fails
x86/xen: add extra memory for remapped frames during setup
x86/xen: don't count how many PFNs are identity mapped
x86/xen: Free bootmem in free_p2m_page() during early boot
x86/xen: Remove unnecessary BUG_ON(preemptible()) in xen_setup_timer()
Corrected the comment describing the ndo operations to
reflect the actual prototype for couple of operations
Signed-off-by: B Viswanath <marichika4@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The "smemc" clock is removed on BG2Q SoCs. In fact, bit19 of clkenable
register is for nfc. Current code use bit19 for non-exist "smemc"
incorrectly, this prevents eMMC from working due to the sdhci's
"core" clk is still gated.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Cc: stable@vger.kernel.org # 3.16+
Signed-off-by: Michael Turquette <mturquette@linaro.org>
All slow clk users are not properly claiming it (get + prepare + enable)
before using it.
If all users properly claiming this clock release it, the clock is
disabled, but faulty users still depends on it, and the system hangs.
This fix prevents the slow clock from being disabled, and should solve the
hanging issue, but offending drivers should be patched to properly claim
this clock.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reported-by: Bo Shen <voice.shen@atmel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Michael Turquette <mturquette@linaro.org>
Pull thermal management fixes from Zhang Rui:
"Specifics:
- Fix a problem that Intel SoC DTS thermal driver does not work when
CONFIG_THERMAL_INT340X is not set.
- Fix a NULL pointer dereference when processor_thermal_device driver
is loaded on a platform without ACPI support"
* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
int340x_thermal/processor_thermal_device: return failure when
ACPI/int340x_thermal: enumerate INT3401 for Intel SoC DTS thermal driver
ACPI/int340x_thermal: enumerate INT340X devices even if they're not in _ART/_TRT
In case of PCI driver we will get a warning:
dw_dmac_pci 0000:00:18.0: Unbalanced pm_runtime_enable!
dw_dmac_pci 0000:00:18.0: DesignWare DMA Controller, 8 channels
This happens due to pm_runtime_enable() call from the driver when PM runtime is
enabled by core.
This patch moves that call to the platform driver where it might make sense.
Fixes: bb32baf76e (dmaengine: dw: enable runtime PM)
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This patch removes a duplicate AHCI-mode SATA Device ID for the Intel Sunrise Point PCH.
Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The driver was recently adapted to a core API change, but the
change was incomplete, missing out the suspend helper and
leaving an extraneous local variable around:
usb/phy/phy-mv-usb.c: In function 'mv_otg_update_state':
usb/phy/phy-mv-usb.c:341:18: warning: unused variable 'phy' [-Wunused-variable]
usb/phy/phy-mv-usb.c: In function 'mv_otg_suspend':
usb/phy/phy-mv-usb.c:861:16: error: 'struct usb_phy' has no member named 'state'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: e47d92545c ("usb: move the OTG state from the USB PHY to the OTG structure")
Signed-off-by: Felipe Balbi <balbi@ti.com>
static code analysis from cppcheck reports:
[drivers/video/fbdev/broadsheetfb.c:673]:
(error) Memory leak: sector_buffer
sector_buffer is not being kfree'd on each call to
broadsheet_spiflash_rewrite_sector(), so free it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
commit 0efaa7e82f
locks: generic_delete_lease doesn't need a file_lock at all
moves the call to fl->fl_lmops->lm_change() to a place in the
code where fl might be a non-lease lock.
When that happens, fl_lmops is NULL and an Oops ensures.
So add an extra test to restore correct functioning.
Reported-by: Linda Walsh <suse@tlinx.org>
Link: https://bugzilla.suse.com/show_bug.cgi?id=912569
Cc: stable@vger.kernel.org (v3.18)
Fixes: 0efaa7e82f
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Commit 5d26a105b5 ("crypto: prefix module autoloading with "crypto-"")
changed the automatic module loading when requesting crypto algorithms
to prefix all module requests with "crypto-". This requires all crypto
modules to have a crypto specific module alias even if their file name
would otherwise match the requested crypto algorithm.
Even though commit 5d26a105b5 added those aliases for a vast amount of
modules, it was missing a few. Add the required MODULE_ALIAS_CRYPTO
annotations to those files to make them get loaded automatically, again.
This fixes, e.g., requesting 'ecb(blowfish-generic)', which used to work
with kernels v3.18 and below.
Also change MODULE_ALIAS() lines to MODULE_ALIAS_CRYPTO(). The former
won't work for crypto modules any more.
Fixes: 5d26a105b5 ("crypto: prefix module autoloading with "crypto-"")
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
of_platform_device_create is only defined when CONFIG_OF_ADDRESS is set,
which is normally always the case when CONFIG_OF is defined, except on Sparc,
so explicitly check for CONFIG_OF_ADDRESS rather then for CONFIG_OF.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Using the native code here can't work properly, as the hypervisor would
normally have cleared the two reason bits by the time Dom0 gets to see
the NMI (if passed to it at all). There's a shared info field for this,
and there's an existing hook to use - just fit the two together. This
is particularly relevant so that NMIs intended to be handled by APEI /
GHES actually make it to the respective handler.
Note that the hook can (and should) be used irrespective of whether
being in Dom0, as accessing port 0x61 in a DomU would be even worse,
while the shared info field would just hold zero all the time. Note
further that hardware NMI handling for PVH doesn't currently work
anyway due to missing code in the hypervisor (but it is expected to
work the native rather than the PV way).
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
This patch fixes a minor bug in allocate_hqd(), where the loop run from the
next-to-allocate pipe until the number of pipes.
This is wrong because we need to consider the possibility where
next-to-allocate pipe is not 0, and thus, the for-loop only checks part of the
pipes and doesn't wrap-around, as it supposed to do.
Therefore, we add another counting variable to make sure we go over all the
pipes, regardless of where we start to look at the first iteration of the loop.
This bug only affected non-HWS mode. In HWS mode, the CP fw is responsible for
allocating the HQD.
Signed-off-by: Ben Goz <ben.goz@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
BAR tx cmd tid was set to non qos (8). This is wrong as BAR
should be sent with the tid of the BA session.
This led to a corruption in the firmware. The visible
effect of this from the driver side is the BA notification
that comes back after the BAR. It was botched and led to the
WARNING below.
------------[ cut here ]------------
WARNING: CPU: 2 PID: 17707 at /home/tester/workspace_hostap/iwlwifi/drivers/net/wireless/iwlwifi/mvm/tx.c:976 iwl_mvm_rx_ba_notif+0x4ba/0x4d0 [iwlmvm]()
Q 4500, tid 8, flow 65535
Modules linked in: iwlmvm(O) mac80211(O) iwlwifi(O) cfg80211(O) compat(O) netconsole configfs ctr ccm arc4 autofs4 microcode bnep rfcomm snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic snd_hda_intel joydev snd_hda_codec uvcvideo videobuf2_core snd_hwdep videodev snd_pcm videobuf2_vmalloc videobuf2_memops i915 snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device drm_kms_helper dell_wmi dell_laptop drm btusb bluetooth snd psmouse i2c_algo_bit sparse_keymap wmi soundcore 6lowpan_iphc dcdbas serio_raw video lpc_ich ppdev mac_hid parport_pc nfsd nfs_acl auth_rpcgss nfs fscache binfmt_misc lockd sunrpc lp parport msdos sdhci_pci sdhci mmc_core ahci libahci e1000e ptp pps_core [last unloaded: compat]
CPU: 2 PID: 17707 Comm: irq/46-iwlwifi Tainted: G W O 3.14.17-patched #4
Hardware name: Dell Inc. Latitude E6430/0CPWYR, BIOS A09 12/13/2012
00000000 00000000 ebd49d6c c1616221 f985dbdc ebd49d9c c1044e44 f9861df4
ebd49dc8 0000452b f985dbdc 000003d0 f98395da f98395da ebd49f10 eaf3d8a4
0000ffff ebd49db4 c1044f03 00000009 ebd49dac f9861df4 ebd49dc8 ebd49e64
Call Trace:
[<c1616221>] dump_stack+0x41/0x52
[<c1044e44>] warn_slowpath_common+0x84/0xa0
[<f98395da>] ? iwl_mvm_rx_ba_notif+0x4ba/0x4d0 [iwlmvm]
[<f98395da>] ? iwl_mvm_rx_ba_notif+0x4ba/0x4d0 [iwlmvm]
[<c1044f03>] warn_slowpath_fmt+0x33/0x40
[<f98395da>] iwl_mvm_rx_ba_notif+0x4ba/0x4d0 [iwlmvm]
[<c10e3952>] ? ring_buffer_unlock_commit+0xa2/0xd0
[<c10e9767>] ? trace_buffer_unlock_commit+0x37/0x50
[<f98568a3>] ? iwl_tm_mvm_send_rx+0x53/0x90 [iwlmvm]
[<f98327a8>] iwl_mvm_rx_dispatch+0x108/0x130 [iwlmvm]
[<f9eac7e7>] iwl_pcie_irq_handler+0xf17/0x15b0 [iwlwifi]
[<c10994c1>] irq_thread_fn+0x21/0x50
[<c109926c>] irq_thread+0xec/0x110
[<c10994a0>] ? irq_thread_dtor+0xb0/0xb0
[<c10993f0>] ? irq_finalize_oneshot.part.34+0xc0/0xc0
[<c1099180>] ? wake_threads_waitq+0x40/0x40
[<c1062fdb>] kthread+0x9b/0xb0
[<c1627137>] ret_from_kernel_thread+0x1b/0x28
[<c1062f40>] ? flush_kthread_worker+0x90/0x90
---[ end trace 5e0f67374816db17 ]---
Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
If the asssocated access point is strong byBBVGACurrent will be adjusted
accordingly.
Users will nolonger see distant access points without taking down interface.
When changing channel reset byBBVGACurrent back to pDevice->abyBBVGA[0] for
max sensitivity.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Move PSTxDesc->m_td1TD1 to inside spin locks.
if m_td1TD1.byTCR has TCR_EDP and TCR_STP are set, the interrupt handler will
try and complete the buffer before it is completed. Usually on the tail
of a burst of tx packets.
This results in a partially completed packet being transmitted or worse
sitll dead lock when skb is freed by the interrupt handler.
Set head_td->m_td1TD1.byTCR to 0 in first lock of vnt_tx_packet to stop
interrupt handler completing the buffer. Move Set TSR1 & ReqCount in
s_cbFillTxBufHead to the second lock.
cbReqCount is carried to the second lock in pTDInfo->dwReqCount without
the padding removed.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Three patches fixing IRQ handling for the DLN2
- Null pointer handling for grgpio
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Merge tag 'gpio-v3.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull gpio fixes from Linus Walleij:
"Here are some GPIO fixes, mainly affecting the DLN2 IRQ handling.
Nothing special about them, just fixes:
- Three patches fixing IRQ handling for the DLN2
- Null pointer handling for grgpio"
* tag 'gpio-v3.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: dln2: use bus_sync_unlock instead of scheduling work
gpio: grgpio: Avoid potential NULL pointer dereference
gpio: dln2: Fix gpio output value in dln2_gpio_direction_output()
gpio: dln2: fix issue when an IRQ is unmasked then enabled
- sdhci-pci|acpi: Support some new IDs
- sdhci: Fix sleep from atomic context
- sdhci-pxav3: Prevent hang during ->probe()
- sdhci: Disable re-tuning for HS400
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Merge tag 'mmc-v3.19-3' of git://git.linaro.org/people/ulf.hansson/mmc
Pull MMC fixes from Ulf Hansson:
"MMC host:
- sdhci-pci|acpi: Support some new IDs
- sdhci: Fix sleep from atomic context
- sdhci-pxav3: Prevent hang during ->probe()
- sdhci: Disable re-tuning for HS400"
* tag 'mmc-v3.19-3' of git://git.linaro.org/people/ulf.hansson/mmc:
mmc: sdhci-pci: Add support for Intel SPT
mmc: sdhci-acpi: Add ACPI HID INT344D
mmc: sdhci: Fix sleep in atomic after inserting SD card
mmc: sdhci-pxav3: do the mbus window configuration after enabling clocks
mmc: sdhci: Disable re-tuning for HS400
mmc: sdhci: Simplify use of tuning timer
mmc: sdhci: Add out_unlock to sdhci_execute_tuning
mmc: sdhci: Tuning should not change max_blk_count
Pull scsi target fixes from Nicholas Bellinger:
"Mostly minor fixes this time, including:
- Add missing virtio-scsi -> TCM attribute conversion in vhost-scsi.
- Fix persistent reservations write exclusive handling to allow
readers for all registered I_T nexuses.
- Drop arbitrary maximum I/O size limit in order to process I/Os
larger than 4 MB, required for initiators that don't honor block
limits EVPD.
- Drop the now left-over fabric_max_sectors attribute"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
iscsi-target: Fix typos in enum cmd_flags_table
MAINTAINERS: Add entry for iSER target driver
target: Allow Write Exclusive non-reservation holders to READ
target: Drop left-over fabric_max_sectors attribute
target: Drop arbitrary maximum I/O size limit
Documentation/target: Update fabric_ops to latest code
vhost-scsi: Add missing virtio-scsi -> TCM attribute conversion
When batching up address ranges for TLB invalidation, we check tlb->end
!= 0 to indicate that some pages have actually been unmapped.
As of commit f045bbb9fa ("mmu_gather: fix over-eager
tlb_flush_mmu_free() calling"), we use the same check for freeing these
pages in order to avoid a performance regression where we call
free_pages_and_swap_cache even when no pages are actually queued up.
Unfortunately, the range could have been reset (tlb->end = 0) by
tlb_end_vma, which has been shown to cause memory leaks on arm64.
Furthermore, investigation into these leaks revealed that the fullmm
case on task exit no longer invalidates the TLB, by virtue of tlb->end
== 0 (in 3.18, need_flush would have been set).
This patch resolves the problem by reverting commit f045bbb9fa, using
instead tlb->local.nr as the predicate for page freeing in
tlb_flush_mmu_free and ensuring that tlb->end is initialised to a
non-zero value in the fullmm case.
Tested-by: Mark Langsdorf <mlangsdo@redhat.com>
Tested-by: Dave Hansen <dave@sr71.net>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
915 doens't support hotplug at all, so we shouldn't try to pretend
otherwise in the SDVO code.
Note: i915 does have hotplug support in hw, we simply never enabled it
in i915.ko: There's only one hpd bit for all outputs, so not worth the
bother to add this special case for this rather old platform.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
[danvet: Clarify that only i915.ko doesn't support hpd on i915g.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
If we determine that a specific port is eDP, don't register the HDMI
connector/encoder for it. The reason being that we want to disable
HPD interrupts for eDP ports when the display is off, but the presence
of the extra HDMI connector would demand the HPD interrupt to remain
enabled all the time.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The dev_priv->display.hpd_irq_setup hook is optional, so we can move the
I915_HAS_HOTPLUG() check out of i915_hpd_irq_setup() and only set up the
hook when hotplug support is present.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
intel_hpd_irq_handler() walks the passed in hpd[] array assuming it
contains HPD_NUM_PINS elements. Currently that's not true as we don't
specify an explicit size for the arrays when initializing them. Avoid
the out of bounds accesses by specifying the size for the arrays.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This reverts commit 5a0afd4b78.
Although timeout mode allows higher residency it impact badly on performance.
I believe while we don't have a way to balance between performance and
power savings at runtime I believe we have to revert and prioritize
performance that was impacted a lot.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88103
Cc: Deepak S <deepak.s@linux.intel.com>
Cc: Wendy Wang <wendy.wang@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Found by reading the HIZ_CHICKEN documentation.
Improves performance in a HiZ microbenchmark by around 50%.
Improves performance in OglZBuffer by around 18%.
Thanks to Chris Wilson for helping me figure out where to put this.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
A previous commit enabled execlists by default:
commit 27401d126b ("drm/i915/bdw: Enable execlists by default where supported")
This allowed routine testing of execlists which exposed a regression when
resuming from suspend. The cause was tracked down the to recent changes to the
ring init sequence:
commit 35a57ffbb1 ("drm/i915: Only init engines once")
During a suspend/resume cycle the hardware Context Status Buffer write pointer
is reset. However since the recent changes to the init sequence the software CSB
read pointer is no longer reset. This means that context status events are not
handled correctly and new contexts are not written to the ELSP, resulting in an
apparent GPU hang.
Pending further changes to the ring init code, just move the
ring->next_context_status_buffer initialization into gen8_init_common_ring to
fix this regression.
v2: Moved init into gen8_init_common_ring rather than context_enable after
feedback from Daniel Vetter. Updated commit msg to reflect this and also cite
commits related to the regression. Fixed bz link to correct bug.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88096
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dave Gordon <david.s.gordon@intel.com>
Signed-off-by: Thomas Daniel <thomas.daniel@intel.com>
Reviewed-by: Dave Gordon <david.s.gordon@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The userspace-requested plane coordinates are now always available via
plane->state.base (and the i915-adjusted values are stored in
plane->state), so we no longer use the coordinate fields in intel_plane
and can drop them.
Also, note that the error case for pageflip calls update_plane() to
program the values from plane->state; it's simpler to just call
intel_plane_restore() which does the same thing.
v2: Replace manual update_plane() with intel_plane_restore() in pageflip
error handler.
Reviewed-by(v1): Bob Paauwe <bob.j.paauwe@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Switch plane handling to use the atomic plane helpers. This means that
rather than provide our own implementations of .update_plane() and
.disable_plane(), we expose the lower-level check/prepare/commit/cleanup
entrypoints and let the DRM core implement update/disable for us using
those entrypoints.
The other main change that falls out of this patch is that our
drm_plane's will now always have a valid plane->state that contains the
relevant plane state (initial state is allocated at plane creation).
The base drm_plane_state pointed to holds the requested source/dest
coordinates, and the subclassed intel_plane_state holds the adjusted
values that our driver actually uses.
v2:
- Renamed file from intel_atomic.c to intel_atomic_plane.c (Daniel)
- Fix a copy/paste comment mistake (Bob)
v3:
- Use prepare/cleanup functions that we've already factored out
- Use newly refactored pre_commit/commit/post_commit to avoid sleeping
during vblank evasion
v4:
- Rebase to latest di-nightly requires adding an 'old_state' parameter
to atomic_update;
v5:
- Must have botched a rebase somewhere and lost some work. Restore
state 'dirty' flag to let begin/end code know which planes to
run the pre_commit/post_commit hooks for. This would have actually
shown up as broken in the next commit rather than this one.
v6:
- Squash kerneldoc patch into this one.
- Previous patches have now already taken care of most of the
infrastructure that used to be in this patch. All we're adding here
now is some thin wrappers.
v7:
- Check return of intel_plane_duplicate_state() for allocation
failures.
v8:
- Drop unused drm_plane_state -> intel_plane_state cast. (Ander)
- Squash in actual transition to plane helpers. Significant
refactoring earlier in the patchset has made the combined
prep+transition much easier to swallow than it was in earlier
iterations. (Ander)
v9:
- s/track_fbs/disabled_planes/ in the atomic crtc flags. The only fb's
we need to update frontbuffer tracking for are those on a plane about
to be disabled (since the atomic helpers never call prepare_fb() when
disabling a plane), so the new name more accurately describes what
we're actually tracking.
Testcase: igt/kms_plane
Testcase: igt/kms_universal_plane
Testcase: igt/kms_cursor_crc
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
A few of the sprite-related function names in i915 are very similar
(e.g., intel_enable_planes() vs intel_crtc_enable_planes()) and don't
make it clear whether they only operate on sprite planes, or whether
they also apply to all universal plane types. Rename a few functions to
be more consistent with our function naming for primary/cursor planes or
to clarify that they apply specifically to sprite planes:
- s/intel_disable_planes/intel_disable_sprite_planes/
- s/intel_enable_planes/intel_enable_sprite_planes/
Also, drop the sprite-specific intel_destroy_plane() and just use
the type-agnostic intel_plane_destroy() function. The extra 'disable'
call that intel_destroy_plane() did is unnecessary since the plane will
already be disabled due to framebuffer destruction by the point it gets
called.
v2: Earlier consolidation patches have reduced the number of functions
we need to rename here.
v3: Also rename intel_plane_funcs vtable to intel_sprite_plane_funcs
for consistency with primary/cursor. (Ander)
v4: Convert comment for intel_plane_destroy() to kerneldoc now that it
is no longer a static function. (Ander)
Reviewed-by(v1): Bob Paauwe <bob.j.paauwe@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Move the vblank evasion up from the low-level, hw-specific
update_plane() handlers to the general plane commit operation.
Everything inside commit should now be non-sleeping, so this brings us
closer to how vblank evasion will behave once we move over to atomic.
v2:
- Restore lost intel_crtc->active check on vblank evasion
v3:
- Replace assert_pipe_enabled() in intel_disable_primary_hw_plane()
with an intel_crtc->active test; it turns out assert_pipe_enabled()
grabs some mutexes and can sleep, which we can't do with interrupts
disabled.
v4:
- Equivalent to v2; v3 change is now squashed into an earlier patch
of the series. (Ander).
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Once we integrate our work into the atomic pipeline, plane commit
operations will need to happen with interrupts disabled, due to vblank
evasion. Our commit functions today include sleepable work, so those
operations need to be split out and run either before or after the
atomic register programming.
The solution here calculates which of those operations will need to be
performed during the 'check' phase and sets flags in an intel_crtc
sub-struct. New intel_begin_crtc_commit() and
intel_finish_crtc_commit() functions are added before and after the
actual register programming; these will eventually be called from the
atomic plane helper's .atomic_begin() and .atomic_end() entrypoints.
v2: Fix broken sprite code split
v3: Make the pre/post commit work crtc-based to match how we eventually
want this to be called from the atomic plane helpers.
v4: Some platforms that haven't had their watermark code reworked were
waiting for vblank, then calling update_sprite_watermarks in their
platform-specific disable code. These also need to be flagged out
of the critical section.
v5: Sprite plane test for primary show/hide should just set the flag to
wait for pending flips, not actually perform the wait. (Ander)
v6:
- Rebase onto latest di-nightly; picks up an important runtime PM fix.
- Handle 'wait_for_flips' flag in intel_begin_crtc_commit(). (Ander)
- Use wait_for_flips flag for primary plane update rather than
performing the wait in the check routine.
- Added kerneldoc to pre_disable/post_enable functions that are no
longer static. (Ander)
- Replace assert_pipe_enabled() in intel_disable_primary_hw_plane()
with an intel_crtc->active test; it turns out assert_pipe_enabled()
grabs some mutexes and can sleep, which we can't do with interrupts
disabled.
v7:
- Check for fb != NULL when deciding whether the sprite plane hides the
primary plane during a sprite update. (PRTS)
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
- fix the lock bit locations of the rk3066 plls
- fix rk3288 core divider values to the ones actually
specified by the soc vendor
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Merge tag 'v3.19-rockhip-clkfixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-fixes
- two currently unused clocks that need to stay enabled
- fix the lock bit locations of the rk3066 plls
- fix rk3288 core divider values to the ones actually
specified by the soc vendor
If CONFIG_BUG=n __WARN_printf won't be defined leading to the below
build failure. The double underscores should have told us to steer clear
of it anyway.
drivers/gpu/drm/i915/intel_display.c: In function ‘assert_pll’:
drivers/gpu/drm/i915/intel_display.c:1027:2: error: implicit declaration
of function ‘__WARN_printf’ [-Werror=implicit-function-declaration]
I915_STATE_WARN(cur_state != state,
Use WARN(1, ...) instead. It handles CONFIG_BUG=n gracefully and, with
the constant condition, a sane compiler should reduce it to
__WARN_printf.
This is a regression introduced by
commit e2c719b75c
Author: Rob Clark <robdclark@gmail.com>
Date: Mon Dec 15 13:56:32 2014 -0500
drm/i915: tame the chattermouth (v2)
Reported-by: Jim Davis <jim.epost@gmail.com>
Reference: http://mid.gmane.org/CA+r1ZhgHTi7bS2irhtuSUs9aO=Br1dumN8=oAOeaMJDZ_ZhwBw@mail.gmail.com
Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Conflicts:
drivers/gpu/drm/i915/intel_runtime_pm.c
Separate branch so that Takashi can also pull just this refactoring
into sound-next.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Commit e4c7f259c5 ("USB: kaweth.c: use GFP_ATOMIC under spin_lock")
makes sure that kaweth_internal_control_msg() allocates memory with GFP_ATOMIC,
but kaweth_internal_control_msg() also calls usb_start_wait_urb()
that still allocates memory with GFP_NOIO.
The patch fixes usb_start_wait_urb() as well.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Adding myself as the ibmveth maintainer and replacing
Santiago Leon.
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Cc: Santiago Leon <santi_leon@yahoo.com>
Cc: Brian King <brking@linux.vnet.ibm.com>
Cc: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel merged two things in 72a3697097,
but he merged this code twice, Dan's static checker spotted it.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
In commit 58dc55f256 ("tipc: use generic
SKB list APIs to manage link transmission queue") we replace all list
traversal loops with the macros skb_queue_walk() or
skb_queue_walk_safe(). While the previous loops were based on the
assumption that the list was NULL-terminated, the standard macros
stop when the iterator reaches the list head, which is non-NULL.
In the function bclink_retransmit_pkt() this macro replacement has
lead to a bug. When we receive a BCAST STATE_MSG we unconditionally
call the function bclink_retransmit_pkt(), whether there really is
anything to retransmit or not, assuming that the sequence number
comparisons will lead to the correct behavior. However, if the
transmission queue is empty, or if there are no eligible buffers in
the transmission queue, we will by mistake pass the list head pointer
to the function tipc_link_retransmit(). Since the list head is not a
valid sk_buff, this leads to a crash.
In this commit we fix this by only calling tipc_link_retransmit()
if we actually found eligible buffers in the transmission queue.
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Update documentation to reflect the fact that
/proc/sys/net/ipv4/route/max_size is no longer used for ipv4.
Signed-off-by: Ani Sinha <ani@arista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The clock is enabled without being prepared, this leads to:
WARNING: CPU: 0 PID: 1 at drivers/clk/clk.c:889 __clk_enable+0x24/0xa8()
and a non working ethernet interface.
Use clk_prepare_enable() and clk_disable_unprepare() to handle the clock.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In C one can either use '\0' or '\x00' (or '\000') to add a NUL byte to
a string. '\0x00' isn't part of these and will in fact result in a
single NUL followed by "x00". This fixes that.
Signed-off-by: Giel van Schijndel <me@mortis.eu>
Reported-at: http://www.viva64.com/en/b/0299/
Signed-off-by: David S. Miller <davem@davemloft.net>
