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Before this patch, it is assumed that a plane is supported either
through the frontend or through the backend alone. However, the DRM
interface does not allow finely reporting our hardware capabilities
and there are cases where neither are support.
In particular, some plane formats are supported by the backend and not
the frontend, so they can only be supported without scaling.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-8-paul.kocialkowski@bootlin.com
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Checking that scaling is in use is not sufficient as a condition to
decide to use the frontend.
Since not all layer formats are supported by the frontend, we need to
check for that support first. Then, the frontend must only be enabled
if the backend doesn't support the format or that scaling is required.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-7-paul.kocialkowski@bootlin.com
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In order to check whether the frontend supports a specific format, an
explicit list and a related helper are introduced.
Just like in the backend, the prototype of the helper is added to the
frontend header so that it can be used later on. The helper is also
exported because it will be used outside of the frontend module.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-6-paul.kocialkowski@bootlin.com
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In order to check whether the backend supports a specific format, an
explicit list and a related helper are introduced.
The prototype of this helper is added to the header so that it can be
called from sun4i_layer later (when introducing tiled mode support).
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-5-paul.kocialkowski@bootlin.com
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The backend allows integer-only scaling but can handle alpha components,
unlike the frontend. It could be useful to add support for this
eventually, so add a short TODO comment describing the situation.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-4-paul.kocialkowski@bootlin.com
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The frontend documentation (for the A33) mentions that ARGB is supported
as output, but with the alpha component always set to 0xff. In practice,
this means that the alpha component cannot be preserved when going
through the frontend. Since the information is lost, ARGB is not
properly supported.
As a result, expose the matching format supported by the frontend (both
for input and output) as XRGB instead of ARGB.
Since ARGB was the selected format for connecting the frontend to the
backend, change it to XRGB to reflect this as well.
The A31 and A80 SoCs apparently have a bit to enable proper alpha,
but this is not supported at this point (see the comment already in the
code).
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-3-paul.kocialkowski@bootlin.com
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This adds a dedicated function for cleaning the video and YUV source
channel layer enable bits. This function is called first on layer atomic
update to make sure that there are no leftover bits from previous
plane configuration that were not cleaned until now.
It fixes issues when alternating between video and YUV planes, where
both bits would be set eventually, leading to broken plane display.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-2-paul.kocialkowski@bootlin.com
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This patch unifies the naming of DRM functions for reference counting as
requested on Documentation/gpu/todo.rst
Signed-off-by: Fernando Ramos <greenfoo@gluegarage.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20181115221634.22715-6-greenfoo@gluegarage.com
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There are no more places where this (deprecated) function is being used
from, thus it can now be removed.
Signed-off-by: Fernando Ramos <greenfoo@gluegarage.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20181115221634.22715-5-greenfoo@gluegarage.com
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This patch unifies the naming of DRM functions for reference counting as
requested on Documentation/gpu/todo.rst
Signed-off-by: Fernando Ramos <greenfoo@gluegarage.com>
Acked-by: Boris Brezillon <boris.brezillon@bootlin.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20181115221634.22715-4-greenfoo@gluegarage.com
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:
- revert of the high-resolution scrolling feature, as it breaks certain
hardware due to incompatibilities between Logitech and Microsoft
worlds. Peter Hutterer is working on a fixed implementation. Until
that is finished, revert by Benjamin Tissoires.
- revert of incorrect strncpy->strlcpy conversion in uhid, from David
Herrmann
- fix for buggy sendfile() implementation on uhid device node, from
Eric Biggers
- a few assorted device-ID specific quirks
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
Revert "Input: Add the `REL_WHEEL_HI_RES` event code"
Revert "HID: input: Create a utility class for counting scroll events"
Revert "HID: logitech: Add function to enable HID++ 1.0 "scrolling acceleration""
Revert "HID: logitech: Enable high-resolution scrolling on Logitech mice"
Revert "HID: logitech: Use LDJ_DEVICE macro for existing Logitech mice"
Revert "HID: logitech: fix a used uninitialized GCC warning"
Revert "HID: input: simplify/fix high-res scroll event handling"
HID: Add quirk for Primax PIXART OEM mice
HID: i2c-hid: Disable runtime PM for LG touchscreen
HID: multitouch: Add pointstick support for Cirque Touchpad
HID: steam: remove input device when a hid client is running.
Revert "HID: uhid: use strlcpy() instead of strncpy()"
HID: uhid: forbid UHID_CREATE under KERNEL_DS or elevated privileges
HID: input: Ignore battery reported by Symbol DS4308
HID: Add quirk for Microsoft PIXART OEM mouse
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Pull networking fixes from David Miller:
1) Need to take mutex in ath9k_add_interface(), from Dan Carpenter.
2) Fix mt76 build without CONFIG_LEDS_CLASS, from Arnd Bergmann.
3) Fix socket wmem accounting in SCTP, from Xin Long.
4) Fix failed resume crash in ena driver, from Arthur Kiyanovski.
5) qed driver passes bytes instead of bits into second arg of
bitmap_weight(). From Denis Bolotin.
6) Fix reset deadlock in ibmvnic, from Juliet Kim.
7) skb_scrube_packet() needs to scrub the fwd marks too, from Petr
Machata.
8) Make sure older TCP stacks see enough dup ACKs, and avoid doing SACK
compression during this period, from Eric Dumazet.
9) Add atomicity to SMC protocol cursor handling, from Ursula Braun.
10) Don't leave dangling error pointer if bpf_prog_add() fails in
thunderx driver, from Lorenzo Bianconi. Also, when we unmap TSO
headers, set sq->tso_hdrs to NULL.
11) Fix race condition over state variables in act_police, from Davide
Caratti.
12) Disable guest csum in the presence of XDP in virtio_net, from Jason
Wang.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (64 commits)
net: gemini: Fix copy/paste error
net: phy: mscc: fix deadlock in vsc85xx_default_config
dt-bindings: dsa: Fix typo in "probed"
net: thunderx: set tso_hdrs pointer to NULL in nicvf_free_snd_queue
net: amd: add missing of_node_put()
team: no need to do team_notify_peers or team_mcast_rejoin when disabling port
virtio-net: fail XDP set if guest csum is negotiated
virtio-net: disable guest csum during XDP set
net/sched: act_police: add missing spinlock initialization
net: don't keep lonely packets forever in the gro hash
net/ipv6: re-do dad when interface has IFF_NOARP flag change
packet: copy user buffers before orphan or clone
ibmvnic: Update driver queues after change in ring size support
ibmvnic: Fix RX queue buffer cleanup
net: thunderx: set xdp_prog to NULL if bpf_prog_add fails
net/dim: Update DIM start sample after each DIM iteration
net: faraday: ftmac100: remove netif_running(netdev) check before disabling interrupts
net/smc: use after free fix in smc_wr_tx_put_slot()
net/smc: atomic SMCD cursor handling
net/smc: add SMC-D shutdown signal
...
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The TX stats should be started with the tx_stats_syncp,
there seems to be a copy/paste error in the driver.
Signed-off-by: Andreas Fiedler <andreas.fiedler@gmx.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The vsc85xx_default_config function called in the vsc85xx_config_init
function which is used by VSC8530, VSC8531, VSC8540 and VSC8541 PHYs
mistakenly calls phy_read and phy_write in-between phy_select_page and
phy_restore_page.
phy_select_page and phy_restore_page actually take and release the MDIO
bus lock and phy_write and phy_read take and release the lock to write
or read to a PHY register.
Let's fix this deadlock by using phy_modify_paged which handles
correctly a read followed by a write in a non-standard page.
Fixes: 6a0bfbbe20b0 ("net: phy: mscc: migrate to phy_select/restore_page functions")
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reset snd_queue tso_hdrs pointer to NULL in nicvf_free_snd_queue routine
since it is used to check if tso dma descriptor queue has been previously
allocated. The issue can be triggered with the following reproducer:
$ip link set dev enP2p1s0v0 xdpdrv obj xdp_dummy.o
$ip link set dev enP2p1s0v0 xdpdrv off
[ 341.467649] WARNING: CPU: 74 PID: 2158 at mm/vmalloc.c:1511 __vunmap+0x98/0xe0
[ 341.515010] Hardware name: GIGABYTE H270-T70/MT70-HD0, BIOS T49 02/02/2018
[ 341.521874] pstate: 60400005 (nZCv daif +PAN -UAO)
[ 341.526654] pc : __vunmap+0x98/0xe0
[ 341.530132] lr : __vunmap+0x98/0xe0
[ 341.533609] sp : ffff00001c5db860
[ 341.536913] x29: ffff00001c5db860 x28: 0000000000020000
[ 341.542214] x27: ffff810feb5090b0 x26: ffff000017e57000
[ 341.547515] x25: 0000000000000000 x24: 00000000fbd00000
[ 341.552816] x23: 0000000000000000 x22: ffff810feb5090b0
[ 341.558117] x21: 0000000000000000 x20: 0000000000000000
[ 341.563418] x19: ffff000017e57000 x18: 0000000000000000
[ 341.568719] x17: 0000000000000000 x16: 0000000000000000
[ 341.574020] x15: 0000000000000010 x14: ffffffffffffffff
[ 341.579321] x13: ffff00008985eb27 x12: ffff00000985eb2f
[ 341.584622] x11: ffff0000096b3000 x10: ffff00001c5db510
[ 341.589923] x9 : 00000000ffffffd0 x8 : ffff0000086868e8
[ 341.595224] x7 : 3430303030303030 x6 : 00000000000006ef
[ 341.600525] x5 : 00000000003fffff x4 : 0000000000000000
[ 341.605825] x3 : 0000000000000000 x2 : ffffffffffffffff
[ 341.611126] x1 : ffff0000096b3728 x0 : 0000000000000038
[ 341.616428] Call trace:
[ 341.618866] __vunmap+0x98/0xe0
[ 341.621997] vunmap+0x3c/0x50
[ 341.624961] arch_dma_free+0x68/0xa0
[ 341.628534] dma_direct_free+0x50/0x80
[ 341.632285] nicvf_free_resources+0x160/0x2d8 [nicvf]
[ 341.637327] nicvf_config_data_transfer+0x174/0x5e8 [nicvf]
[ 341.642890] nicvf_stop+0x298/0x340 [nicvf]
[ 341.647066] __dev_close_many+0x9c/0x108
[ 341.650977] dev_close_many+0xa4/0x158
[ 341.654720] rollback_registered_many+0x140/0x530
[ 341.659414] rollback_registered+0x54/0x80
[ 341.663499] unregister_netdevice_queue+0x9c/0xe8
[ 341.668192] unregister_netdev+0x28/0x38
[ 341.672106] nicvf_remove+0xa4/0xa8 [nicvf]
[ 341.676280] nicvf_shutdown+0x20/0x30 [nicvf]
[ 341.680630] pci_device_shutdown+0x44/0x88
[ 341.684720] device_shutdown+0x144/0x250
[ 341.688640] kernel_restart_prepare+0x44/0x50
[ 341.692986] kernel_restart+0x20/0x68
[ 341.696638] __se_sys_reboot+0x210/0x238
[ 341.700550] __arm64_sys_reboot+0x24/0x30
[ 341.704555] el0_svc_handler+0x94/0x110
[ 341.708382] el0_svc+0x8/0xc
[ 341.711252] ---[ end trace 3f4019c8439959c9 ]---
[ 341.715874] page:ffff7e0003ef4000 count:0 mapcount:0 mapping:0000000000000000 index:0x4
[ 341.723872] flags: 0x1fffe000000000()
[ 341.727527] raw: 001fffe000000000 ffff7e0003f1a008 ffff7e0003ef4048 0000000000000000
[ 341.735263] raw: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[ 341.742994] page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0)
where xdp_dummy.c is a simple bpf program that forwards the incoming
frames to the network stack (available here:
https://github.com/altoor/xdp_walkthrough_examples/blob/master/sample_1/xdp_dummy.c)
Fixes: 05c773f52b96 ("net: thunderx: Add basic XDP support")
Fixes: 4863dea3fab0 ("net: Adding support for Cavium ThunderX network controller")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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of_find_node_by_path() acquires a reference to the node
returned by it and that reference needs to be dropped by its caller.
This place doesn't do that, so fix it.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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team_notify_peers() will send ARP and NA to notify peers. team_mcast_rejoin()
will send multicast join group message to notify peers. We should do this when
enabling/changed to a new port. But it doesn't make sense to do it when a port
is disabled.
On the other hand, when we set mcast_rejoin_count to 2, and do a failover,
team_port_disable() will increase mcast_rejoin.count_pending to 2 and then
team_port_enable() will increase mcast_rejoin.count_pending to 4. We will send
4 mcast rejoin messages at latest, which will make user confused. The same
with notify_peers.count.
Fix it by deleting team_notify_peers() and team_mcast_rejoin() in
team_port_disable().
Reported-by: Liang Li <liali@redhat.com>
Fixes: fc423ff00df3a ("team: add peer notification")
Fixes: 492b200efdd20 ("team: add support for sending multicast rejoins")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We don't support partial csumed packet since its metadata will be lost
or incorrect during XDP processing. So fail the XDP set if guest_csum
feature is negotiated.
Fixes: f600b6905015 ("virtio_net: Add XDP support")
Reported-by: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Pavel Popa <pashinho1990@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We don't disable VIRTIO_NET_F_GUEST_CSUM if XDP was set. This means we
can receive partial csumed packets with metadata kept in the
vnet_hdr. This may have several side effects:
- It could be overridden by header adjustment, thus is might be not
correct after XDP processing.
- There's no way to pass such metadata information through
XDP_REDIRECT to another driver.
- XDP does not support checksum offload right now.
So simply disable guest csum if possible in this the case of XDP.
Fixes: 3f93522ffab2d ("virtio-net: switch off offloads on demand if possible on XDP set")
Reported-by: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Pavel Popa <pashinho1990@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull block fix from Jens Axboe:
"Just a single fix for this week, fixing an issue with nvme-fc"
* tag 'for-linus-20181123' of git://git.kernel.dk/linux-block:
nvme-fc: resolve io failures during connect
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
- Two fixes for the Intel VT-d driver to fix a NULL-ptr dereference and
an unbalance in an allocate/free path (allocated with memremap, freed
with iounmap)
- Fix for a crash in the Renesas IOMMU driver
- Fix for the Advanced Virtual Interrupt Controler (AVIC) code in the
AMD IOMMU driver
* tag 'iommu-fixes-v4.20-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/vt-d: Use memunmap to free memremap
amd/iommu: Fix Guest Virtual APIC Log Tail Address Register
iommu/ipmmu-vmsa: Fix crash on early domain free
iommu/vt-d: Fix NULL pointer dereference in prq_event_thread()
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Prevent the ACPI core from registering a platform device for the
SMB0001 HID to avoid IRQ allocation issues (Hans de Goede)"
* tag 'acpi-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / platform: Add SMB0001 HID to forbidden_id_list
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix two issues in the Operating Performance Points (OPP)
framework, one cpufreq driver issue, one problem related to the tasks
freezer and a few build-related issues in the cpupower utility.
Specifics:
- Fix tasks freezer deadlock in de_thread() that occurs if one of its
sub-threads has been frozen already (Chanho Min).
- Avoid registering a platform device by the ti-cpufreq driver on
platforms that cannot use it (Dave Gerlach).
- Fix a mistake in the ti-opp-supply operating performance points
(OPP) driver that caused an incorrect reference voltage to be used
and make it adjust the minimum voltage dynamically to avoid hangs
or crashes in some cases (Keerthy).
- Fix issues related to compiler flags in the cpupower utility and
correct a linking problem in it by renaming a file with a duplicate
name (Jiri Olsa, Konstantin Khlebnikov)"
* tag 'pm-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
exec: make de_thread() freezable
cpufreq: ti-cpufreq: Only register platform_device when supported
opp: ti-opp-supply: Correct the supply in _get_optimal_vdd_voltage call
opp: ti-opp-supply: Dynamically update u_volt_min
tools cpupower: Override CFLAGS assignments
tools cpupower debug: Allow to use outside build flags
tools/power/cpupower: fix compilation with STATIC=true
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Minor stuff except the IDA leak which was kind of important to fix.
Also new maintainers, yay.
- Do not lose an IDA on the gpiochip register errorpath.
- Fix the PXA non-pincontrol GPIO-using platforms.
- Fix the direction on the mockup GPIO driver.
- Add some MAINTAINERS stuff: Bartosz stepped up as GPIO
co-maintainer, and Andy established an Intel git tree"
* tag 'gpio-v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
MAINTAINERS: Do maintain Intel GPIO drivers via separate tree
gpio: mockup: fix indicated direction
gpio: pxa: fix legacy non pinctrl aware builds again
gpio: don't free unallocated ida on gpiochip_add_data_with_key() error path
MAINTAINERS: add myself as co-maintainer of gpiolib
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"MMC host:
- sdhci-pci: Fixup card detect lookup
- sdhci-pci: Workaround GLK firmware bug for tuning"
* tag 'mmc-v4.20-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci-pci: Workaround GLK firmware failing to restore the tuning value
mmc: sdhci-pci: Try "cd" for card-detect lookup before using NULL
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Pull drm fixes from Dave Airlie:
"Regular drm fixes:
amdgpu:
- Vega20 fixes
- firmware loading fix
- panel display fix
- override fix
i915:
- Sandybridge lockup fix
- fastboot DSI panel fix
- GPU hang on Broxton
- GPU reloc fixes on pineview/bearlake
ast:
- screen blurring fix
- cursor appearance fix
udmabuf:
- mmap fix
vc4:
- NULL deref fix
- async cursor update fix
All seems pretty normal at this stage"
* tag 'drm-fixes-2018-11-23' of git://anongit.freedesktop.org/drm/drm:
drm/ast: fixed cursor may disappear sometimes
drm/ast: change resolution may cause screen blurred
drm/i915: Add rotation readout for plane initial config
drm/i915: Force a LUT update in intel_initial_commit()
drm/fb-helper: Blacklist writeback when adding connectors to fbdev
drm/i915: Write GPU relocs harder with gen3
drm/amdgpu: Enable HDP memory light sleep
drm/i915: Prevent machine hang from Broxton's vtd w/a and error capture
drm/amd/pp: handle negative values when reading OD
drm/amdgpu: Add missing firmware entry for HAINAN
drm/amd/powerplay: disable Vega20 DS related features
drm/amdgpu: Fix oops when pp_funcs->switch_power_profile is unset
drm/i915: Disable LP3 watermarks on all SNB machines
drm/ast: Remove existing framebuffers before loading driver
udmabuf: set read/write flag when exporting
drm/amd/display: Support amdgpu "max bpc" connector property (v2)
drm/amdgpu: Add amdgpu "max bpc" connector property (v2)
drm/vc4: Set ->legacy_cursor_update to false when doing non-async updates
drm/vc4: Fix NULL pointer dereference in the async update path
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For real commits we WARN if ->hw_done hasn't been completed by the time
drm_atomic_helper_commit_cleanup_done() is called. Let's do the same for
the fake commit.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181122143412.11655-2-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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Consider the following scenario:
1. nonblocking enable crtc
2. wait for the event
3. nonblocking disable crtc
On i915 this can lead to a spurious -EBUSY from step 3 on
account of non-enabled planes getting the fake_commit in step 1
and we don't complete the fake_commit-> flip_done until
drm_atomic_helper_commit_hw_done() which can happen a long
time after the flip event was sent out.
This will become somewhat easy to hit on SKL+ once we start
to add all the planes for the crtc to every modeset commit
for the purposes of forcing a watermark register programming
[1].
To make the race a little less pronounced let's complete
fake_commit->flip_done after drm_atomic_helper_wait_for_flip_done().
For the single crtc case this should make the race quite
theoretical, assuming drm_atomic_helper_wait_for_flip_done()
actually has to wait for the real commit flip_done. In case
the real commit flip_done gets completed singificantly before
drm_atomic_helper_wait_for_flip_done(), or we are dealing with
multiple crtcs whose vblanks don't line up nicely the race still
exists.
[1] https://patchwork.freedesktop.org/patch/262670/
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Fixes: 080de2e5be2d ("drm/atomic: Check for busy planes/connectors before setting the commit")
Testcase: igt/kms_cursor_legacy/*nonblocking-modeset-vs-cursor-atomic
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181122143412.11655-1-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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The hardware requires the HDSR and VDSR registers to be set to 1 or
higher. This translates to a minimum combined horizontal sync and back
porch of 20 pixels and a minimum vertical back porch of 3 lines. Reject
modes that fail those requirements.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
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The rcar-du driver supports probe deferral for external clocks, but
implements it badly by checking the wrong pointer due to a bad copy and
paste. Fix it.
While at it, reject invalid clocks outright for DU channels that have a
display PLL, as the external clock is mandatory in that case. This
avoids a WARN_ON() at runtime.
Fixes: 1b30dbde8596 ("drm: rcar-du: Add support for external pixel clock")
Reported-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
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The hardware supports alpha on all planes, and using it on the primary
plane can be useful. Don't restrict the alpha property to overlay
planes.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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Add support for the R-Car M3-N (R8A77965) SoC to the LVDS encoder
driver. The encoder appears identical to the M3-W version, we can thus
simply point to the generic Gen3 data.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
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The drm_vblank_init() takes the total number of CRTCs as an argument,
but the rcar-du driver passes a bitmask of the CRTC indices. Fix it.
Fixes: 4bf8e1962f91 ("drm: Renesas R-Car Display Unit DRM driver")
Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
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'rcar_du_crtc_set_crc_source()'
We return 0 unconditionally in 'rcar_du_crtc_set_crc_source()'.
However, 'ret' is set to some error codes if some function calls fail.
Return 'ret' instead to propagate the error code.
Fixes: 47a52d024e89 ("media: drm: rcar-du: Add support for CRC computation")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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Add support for the R8A7744 DU (which is very similar to the R8A7743 DU);
it has 1 DPAD (RGB) output and 1 LVDS output.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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Add RZ/G1C (a.k.a. r8a77470) support to the R-Car DU driver.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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Fix the misspelled 'belance' in a comment.
Reported-by: Ulrich Hecht <uli+renesas@fpond.eu>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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This patch unifies the naming of DRM functions for reference counting
of struct drm_device. The resulting code is more aligned with the rest
of the Linux kernel interfaces.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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This patch unifies the naming of DRM functions for reference counting
of struct drm_device. The resulting code is more aligned with the rest
of the Linux kernel interfaces.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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* pm-cpufreq:
cpufreq: ti-cpufreq: Only register platform_device when supported
* pm-sleep:
exec: make de_thread() freezable
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Fix for fastboot DSI panel boot time flicker regression, also fixes Bugzilla #108225
- Fix Bugzilla #101269 to avoid GPU hangs on Sandybridge machines
- Avoid GPU hang on error capture on Broxton with Vt-d enabled
- Avoid missing GPU relocations on Pineview and Bearlake (Gen3)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181122120555.GA18282@jlahtine-desk.ger.corp.intel.com
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During device reset, queue memory is not being updated to accommodate
changes in ring buffer sizes supported by backing hardware. Track
any differences in ring buffer sizes following the reset and update
queue memory when possible.
Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The wrong index is used when cleaning up RX buffer objects during release
of RX queues. Update to use the correct index counter.
Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Set xdp_prog pointer to NULL if bpf_prog_add fails since that routine
reports the error code instead of NULL in case of failure and xdp_prog
pointer value is used in the driver to verify if XDP is currently
enabled.
Moreover report the error code to userspace if nicvf_xdp_setup fails
Fixes: 05c773f52b96 ("net: thunderx: Add basic XDP support")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char/misc driver fixes for issues that have been
reported.
Nothing major, highlights include:
- gnss sync write fixes
- uio oops fix
- nvmem fixes
- other minor fixes and some documentation/maintainers updates
Full details are in the shortlog.
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
Documentation/security-bugs: Postpone fix publication in exceptional cases
MAINTAINERS: Add Sasha as a stable branch maintainer
gnss: sirf: fix synchronous write timeout
gnss: serial: fix synchronous write timeout
uio: Fix an Oops on load
test_firmware: fix error return getting clobbered
nvmem: core: fix regression in of_nvmem_cell_get()
misc: atmel-ssc: Fix section annotation on atmel_ssc_get_driver_data
drivers/misc/sgi-gru: fix Spectre v1 vulnerability
Drivers: hv: kvp: Fix the recent regression caused by incorrect clean-up
slimbus: ngd: remove unnecessary check
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of small USB fixes for 4.20-rc4.
There's the usual xhci and dwc2/3 fixes as well as a few minor other
issues resolved for problems that have been reported. Full details are
in the shortlog.
All have been in linux-next for a while with no reported issues"
* tag 'usb-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: cdc-acm: add entry for Hiro (Conexant) modem
usb: xhci: Prevent bus suspend if a port connect change or polling state is detected
usb: core: Fix hub port connection events lost
usb: dwc3: gadget: fix ISOC TRB type on unaligned transfers
Revert "usb: gadget: ffs: Fix BUG when userland exits with submitted AIO transfers"
usb: dwc2: pci: Fix an error code in probe
usb: dwc3: Fix NULL pointer exception in dwc3_pci_remove()
xhci: Add quirk to workaround the errata seen on Cavium Thunder-X2 Soc
usb: xhci: fix timeout for transition from RExit to U0
usb: xhci: fix uninitialized completion when USB3 port got wrong status
xhci: Add check for invalid byte size error when UAS devices are connected.
xhci: handle port status events for removed USB3 hcd
xhci: Fix leaking USB3 shared_hcd at xhci removal
USB: misc: appledisplay: add 20" Apple Cinema Display
USB: quirks: Add no-lpm quirk for Raydium touchscreens
usb: quirks: Add delay-init quirk for Corsair K70 LUX RGB
USB: Wait for extra delay time after USB_PORT_FEAT_RESET for quirky hub
usb: dwc3: gadget: Properly check last unaligned/zero chain TRB
usb: dwc3: core: Clean up ULPI device
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Pull mtd fixes from Boris Brezillon:
"SPI NOR fixes:
- Various fixes related to the SFDP parsing code merged in 4.20
- Fix for a page fault in the cadence-qspi
NAND fixes:
- Fix a macro name conflict between the QCOM NAND controller driver
and the RISC-V asm headers
- Fix of-node handling in the atmel driver"
* tag 'mtd/fixes-for-4.20-rc4' of git://git.infradead.org/linux-mtd:
mtd: spi-nor: fix selection of uniform erase type in flexible conf
mtd: spi-nor: Fix Cadence QSPI page fault kernel panic
mtd: rawnand: qcom: Namespace prefix some commands
mtd: rawnand: atmel: fix OF child-node lookup
mtd: spi_nor: pass DMA-able buffer to spi_nor_read_raw()
mtd: spi-nor: don't overwrite errno in spi_nor_get_map_in_use()
mtd: spi-nor: fix iteration over smpt array
mtd: spi-nor: don't drop sfdp data if optional parsers fail
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two small fixes.
The qla2xxx is a regression from 4.18 and the ufs one is a device
enablement fix"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: Fix hynix ufs bug with quirk on hi36xx SoC
scsi: qla2xxx: Timeouts occur on surprise removal of QLogic adapter
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memunmap() should be used to free the return of memremap(), not
iounmap().
Fixes: dfddb969edf0 ('iommu/vt-d: Switch from ioremap_cache to memremap')
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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