08 Oct, 2020
1 commit
-
* tag 'v5.4.70': (3051 commits)
Linux 5.4.70
netfilter: ctnetlink: add a range check for l3/l4 protonum
ep_create_wakeup_source(): dentry name can change under you...
...Conflicts:
arch/arm/mach-imx/pm-imx6.c
arch/arm64/boot/dts/freescale/imx8mm-evk.dts
arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
drivers/crypto/caam/caamalg.c
drivers/gpu/drm/imx/dw_hdmi-imx.c
drivers/gpu/drm/imx/imx-ldb.c
drivers/gpu/drm/imx/ipuv3/ipuv3-crtc.c
drivers/mmc/host/sdhci-esdhc-imx.c
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
drivers/net/ethernet/freescale/enetc/enetc.c
drivers/net/ethernet/freescale/enetc/enetc_pf.c
drivers/thermal/imx_thermal.c
drivers/usb/cdns3/ep0.c
drivers/xen/swiotlb-xen.c
sound/soc/fsl/fsl_esai.c
sound/soc/fsl/fsl_sai.cSigned-off-by: Jason Liu
01 Oct, 2020
2 commits
-
commit 19a508bd1ad8e444de86873bf2f2b2ab8edd6552 upstream.
NULL pointer dereference is observed while exporting the dmabuf but
failed to allocate the 'struct file' which results into the dropping of
the allocated dentry corresponding to this file in the dmabuf fs, which
is ending up in dma_buf_release() and accessing the uninitialzed
dentry->d_fsdata.Call stack on 5.4 is below:
dma_buf_release+0x2c/0x254 drivers/dma-buf/dma-buf.c:88
__dentry_kill+0x294/0x31c fs/dcache.c:584
dentry_kill fs/dcache.c:673 [inline]
dput+0x250/0x380 fs/dcache.c:859
path_put+0x24/0x40 fs/namei.c:485
alloc_file_pseudo+0x1a4/0x200 fs/file_table.c:235
dma_buf_getfile drivers/dma-buf/dma-buf.c:473 [inline]
dma_buf_export+0x25c/0x3ec drivers/dma-buf/dma-buf.c:585Fix this by checking for the valid pointer in the dentry->d_fsdata.
Fixes: 4ab59c3c638c ("dma-buf: Move dma_buf_release() from fops to dentry_ops")
Cc: [5.7+]
Signed-off-by: Charan Teja Reddy
Reviewed-by: Christian König
Link: https://patchwork.freedesktop.org/patch/391319/
Signed-off-by: Christian König
Signed-off-by: Greg Kroah-Hartman -
[ Upstream commit 9c98f021e4e717ffd9948fa65340ea3ef12b7935 ]
Make dma_fence_enable_sw_signaling() behave like its
dma_fence_add_callback() and dma_fence_default_wait() counterparts and
perform the test to enable signaling under the fence->lock, along with
the action to do so. This ensure that should an implementation be trying
to flush the cb_list (by signaling) on retirement before freeing the
fence, it can do so in a race-free manner.See also 0fc89b6802ba ("dma-fence: Simply wrap dma_fence_signal_locked
with dma_fence_signal").v2: Refactor all 3 enable_signaling paths to use a common function.
v3: Don't argue, just keep the tracepoint in the existing spot.Signed-off-by: Chris Wilson
Cc: Tvrtko Ursulin
Reviewed-by: Tvrtko Ursulin
Link: https://patchwork.freedesktop.org/patch/msgid/20191004101140.32713-1-chris@chris-wilson.co.uk
Signed-off-by: Sasha Levin
29 Jul, 2020
1 commit
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[ Upstream commit 6348dd291e3653534a9e28e6917569bc9967b35b ]
There exists a sleep-while-atomic bug while accessing the dmabuf->name
under mutex in the dmabuffs_dname(). This is caused from the SELinux
permissions checks on a process where it tries to validate the inherited
files from fork() by traversing them through iterate_fd() (which
traverse files under spin_lock) and call
match_file(security/selinux/hooks.c) where the permission checks happen.
This audit information is logged using dump_common_audit_data() where it
calls d_path() to get the file path name. If the file check happen on
the dmabuf's fd, then it ends up in ->dmabuffs_dname() and use mutex to
access dmabuf->name. The flow will be like below:
flush_unauthorized_files()
iterate_fd()
spin_lock() --> Start of the atomic section.
match_file()
file_has_perm()
avc_has_perm()
avc_audit()
slow_avc_audit()
common_lsm_audit()
dump_common_audit_data()
audit_log_d_path()
d_path()
dmabuffs_dname()
mutex_lock()--> Sleep while atomic.Call trace captured (on 4.19 kernels) is below:
___might_sleep+0x204/0x208
__might_sleep+0x50/0x88
__mutex_lock_common+0x5c/0x1068
__mutex_lock_common+0x5c/0x1068
mutex_lock_nested+0x40/0x50
dmabuffs_dname+0xa0/0x170
d_path+0x84/0x290
audit_log_d_path+0x74/0x130
common_lsm_audit+0x334/0x6e8
slow_avc_audit+0xb8/0xf8
avc_has_perm+0x154/0x218
file_has_perm+0x70/0x180
match_file+0x60/0x78
iterate_fd+0x128/0x168
selinux_bprm_committing_creds+0x178/0x248
security_bprm_committing_creds+0x30/0x48
install_exec_creds+0x1c/0x68
load_elf_binary+0x3a4/0x14e0
search_binary_handler+0xb0/0x1e0So, use spinlock to access dmabuf->name to avoid sleep-while-atomic.
Cc: [5.3+]
Signed-off-by: Charan Teja Kalla
Reviewed-by: Michael J. Ruhl
Acked-by: Christian König
[sumits: added comment to spinlock_t definition to avoid warning]
Signed-off-by: Sumit Semwal
Link: https://patchwork.freedesktop.org/patch/msgid/a83e7f0d-4e54-9848-4b58-e1acdbe06735@codeaurora.org
Signed-off-by: Sasha Levin
09 Jul, 2020
1 commit
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commit 4ab59c3c638c6c8952bf07739805d20eb6358a4d upstream.
Charan Teja reported a 'use-after-free' in dmabuffs_dname [1], which
happens if the dma_buf_release() is called while the userspace is
accessing the dma_buf pseudo fs's dmabuffs_dname() in another process,
and dma_buf_release() releases the dmabuf object when the last reference
to the struct file goes away.I discussed with Arnd Bergmann, and he suggested that rather than tying
the dma_buf_release() to the file_operations' release(), we can tie it to
the dentry_operations' d_release(), which will be called when the last ref
to the dentry is removed.The path exercised by __fput() calls f_op->release() first, and then calls
dput, which eventually calls d_op->d_release().In the 'normal' case, when no userspace access is happening via dma_buf
pseudo fs, there should be exactly one fd, file, dentry and inode, so
closing the fd will kill of everything right away.In the presented case, the dentry's d_release() will be called only when
the dentry's last ref is released.Therefore, lets move dma_buf_release() from fops->release() to
d_ops->d_release()Many thanks to Arnd for his FS insights :)
[1]: https://lore.kernel.org/patchwork/patch/1238278/
Fixes: bb2bb9030425 ("dma-buf: add DMA_BUF_SET_NAME ioctls")
Reported-by: syzbot+3643a18836bce555bff6@syzkaller.appspotmail.com
Cc: [5.3+]
Cc: Arnd Bergmann
Reported-by: Charan Teja Reddy
Reviewed-by: Arnd Bergmann
Signed-off-by: Sumit Semwal
Tested-by: Charan Teja Reddy
Link: https://patchwork.freedesktop.org/patch/msgid/20200611114418.19852-1-sumit.semwal@linaro.org
Signed-off-by: Greg Kroah-Hartman
19 Jun, 2020
1 commit
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* tag 'v5.4.47': (2193 commits)
Linux 5.4.47
KVM: arm64: Save the host's PtrAuth keys in non-preemptible context
KVM: arm64: Synchronize sysreg state on injecting an AArch32 exception
...Conflicts:
arch/arm/boot/dts/imx6qdl.dtsi
arch/arm/mach-imx/Kconfig
arch/arm/mach-imx/common.h
arch/arm/mach-imx/suspend-imx6.S
arch/arm64/boot/dts/freescale/imx8qxp-mek.dts
arch/powerpc/include/asm/cacheflush.h
drivers/cpufreq/imx6q-cpufreq.c
drivers/dma/imx-sdma.c
drivers/edac/synopsys_edac.c
drivers/firmware/imx/imx-scu.c
drivers/net/ethernet/freescale/fec.h
drivers/net/ethernet/freescale/fec_main.c
drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
drivers/net/phy/phy_device.c
drivers/perf/fsl_imx8_ddr_perf.c
drivers/usb/cdns3/gadget.c
drivers/usb/dwc3/gadget.c
include/uapi/linux/dma-buf.hSigned-off-by: Jason Liu
06 May, 2020
1 commit
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commit a5bff92eaac45bdf6221badf9505c26792fdf99e upstream.
The uapi is the same on 32 and 64 bit, but the number isn't. Everyone
who botched this please re-read:https://www.kernel.org/doc/html/v5.4-preprc-cpu/ioctl/botching-up-ioctls.html
Also, the type argument for the ioctl macros is for the type the void
__user *arg pointer points at, which in this case would be the
variable-sized char[] of a 0 terminated string. So this was botched in
more than just the usual ways.Cc: Sumit Semwal
Cc: Chenbo Feng
Cc: Greg Hackmann
Cc: Daniel Vetter
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: minchan@kernel.org
Cc: surenb@google.com
Cc: jenhaochen@google.com
Cc: Martin Liu
Signed-off-by: Daniel Vetter
Tested-by: Martin Liu
Reviewed-by: Martin Liu
Signed-off-by: Sumit Semwal
[sumits: updated some checkpatch fixes, corrected author email]
Link: https://patchwork.freedesktop.org/patch/msgid/20200407133002.3486387-1-daniel.vetter@ffwll.ch
Signed-off-by: Greg Kroah-Hartman
12 Mar, 2020
1 commit
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commit d1f37226431f5d9657aa144a40f2383adbcf27e1 upstream.
dma-buf name can be set via DMA_BUF_SET_NAME ioctl, but once set
it never gets freed.Free it in dma_buf_release().
Fixes: bb2bb9030425 ("dma-buf: add DMA_BUF_SET_NAME ioctls")
Reported-by: syzbot+b2098bc44728a4efb3e9@syzkaller.appspotmail.com
Cc: Greg Hackmann
Cc: Chenbo Feng
Cc: Sumit Semwal
Signed-off-by: Cong Wang
Acked-by: Chenbo Feng
Signed-off-by: Sumit Semwal
Link: https://patchwork.freedesktop.org/patch/msgid/20191227063204.5813-1-xiyou.wangcong@gmail.com
Signed-off-by: Greg Kroah-Hartman
08 Mar, 2020
1 commit
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Merge Linux stable release v5.4.24 into imx_5.4.y
* tag 'v5.4.24': (3306 commits)
Linux 5.4.24
blktrace: Protect q->blk_trace with RCU
kvm: nVMX: VMWRITE checks unsupported field before read-only field
...Signed-off-by: Jason Liu
Conflicts:
arch/arm/boot/dts/imx6sll-evk.dts
arch/arm/boot/dts/imx7ulp.dtsi
arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
drivers/clk/imx/clk-composite-8m.c
drivers/gpio/gpio-mxc.c
drivers/irqchip/Kconfig
drivers/mmc/host/sdhci-of-esdhc.c
drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
drivers/net/can/flexcan.c
drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
drivers/net/ethernet/mscc/ocelot.c
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
drivers/net/phy/realtek.c
drivers/pci/controller/mobiveil/pcie-mobiveil-host.c
drivers/perf/fsl_imx8_ddr_perf.c
drivers/tee/optee/shm_pool.c
drivers/usb/cdns3/gadget.c
kernel/sched/cpufreq.c
net/core/xdp.c
sound/soc/fsl/fsl_esai.c
sound/soc/fsl/fsl_sai.c
sound/soc/sof/core.c
sound/soc/sof/imx/Kconfig
sound/soc/sof/loader.c
21 Dec, 2019
1 commit
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commit 6645d42d79d33e8a9fe262660a75d5f4556bbea9 upstream.
In the implementation of sync_file_merge() the allocated sync_file is
leaked if number of fences overflows. Release sync_file by goto err.Fixes: a02b9dc90d84 ("dma-buf/sync_file: refactor fence storage in struct sync_file")
Signed-off-by: Navid Emamdoost
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter
Link: https://patchwork.freedesktop.org/patch/msgid/20191122220957.30427-1-navid.emamdoost@gmail.com
Signed-off-by: Greg Kroah-Hartman
25 Nov, 2019
1 commit
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Add structure dma_buf_phys to store physical address.
Add DMA_BUF_IOCTL_PHYS to export physical address.Change-Id: Ib2f24b33462d603f2cbeef975689aaf82447d088
Signed-off-by: ivan.liu
[ Aisheng: update ioctl NR to 2 due to the original 1 is used in upstream ]
[ Aisheng: update ioctl NR to 10 according to GPU team's request ]
Signed-off-by: Dong Aisheng
10 Oct, 2019
1 commit
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This causes kernel crash when testing lima driver.
Cc: Christian König
Fixes: b8c036dfc66f ("dma-buf: simplify reservation_object_get_fences_rcu a bit")
Signed-off-by: Qiang Yu
Reviewed-by: Chris Wilson
Signed-off-by: Chris Wilson
Link: https://patchwork.freedesktop.org/patch/msgid/20190922074900.853-1-yuq825@gmail.com
Signed-off-by: Christian König
20 Aug, 2019
4 commits
-
The dma-fence selftest uses an on-stack timer that requires explicit
annotation for debugobjects.Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111442
Signed-off-by: Chris Wilson
Cc: Daniel Vetter
Acked-by: Daniel Vetter
Link: https://patchwork.freedesktop.org/patch/msgid/20190820122118.13698-1-chris@chris-wilson.co.uk -
Use the %zu format specifier for a size_t returned by sizeof.
Reported-by: kbuild-all@01.org
Signed-off-by: Chris Wilson
Reviewed-by: Daniel Vetter
Link: https://patchwork.freedesktop.org/patch/msgid/20190819195740.27608-1-chris@chris-wilson.co.uk -
Exercise the dma-fence API exported to drivers.
Signed-off-by: Chris Wilson
Cc: Daniel Vetter
Acked-by: Daniel Vetter
Link: https://patchwork.freedesktop.org/patch/msgid/20190819095928.32091-2-chris@chris-wilson.co.uk -
In light of recent review slip ups, the absence of a suite of tests for
dma-buf became apparent. Given the current plethora of testing
frameworks, opt for one already in use by Intel's CI and so allow easy
hook up into igt.We introduce a new module that when loaded will execute the list of
selftests and their subtest. The names of the selftests are put into the
modinfo as parameters so that igt can identify each, and run them
independently, principally for ease of error reporting.Signed-off-by: Chris Wilson
Cc: Daniel Vetter
Cc: Tomi Sarvela
Acked-by: Daniel Vetter
Link: https://patchwork.freedesktop.org/patch/msgid/20190819095928.32091-1-chris@chris-wilson.co.uk
18 Aug, 2019
3 commits
-
The timestamp and the cb_list are mutually exclusive, the cb_list can
only be added to prior to being signaled (and once signaled we drain),
while the timestamp is only valid upon being signaled. Both the
timestamp and the cb_list are only valid while the fence is alive, and
as soon as no references are held can be replaced by the rcu_head.By reusing the union for the timestamp, we squeeze the base dma_fence
struct to 64 bytes on x86-64.v2: Sort the union chronologically
Suggested-by: Christian König
Signed-off-by: Chris Wilson
Cc: Christian König
Acked-by: Christian König .
Link: https://patchwork.freedesktop.org/patch/msgid/20190817153022.5749-1-chris@chris-wilson.co.uk -
Currently dma_fence_signal() tries to avoid the spinlock and only takes
it if absolutely required to walk the callback list. However, to allow
for some users to surreptitiously insert lazy signal callbacks that
do not depend on enabling the signaling mechanism around every fence,
we always need to notify the callbacks on signaling. As such, we will
always need to take the spinlock and dma_fence_signal() effectively
becomes a clone of dma_fence_signal_locked().v2: Update the test_and_set_bit() before entering the spinlock.
v3: Drop the test_[and_set]_bit() before the spinlock, it's a caller
error so expected to be very unlikely.Signed-off-by: Chris Wilson
Cc: Christian König
Cc: Daniel Vetter
Reviewed-by: Christian König
Link: https://patchwork.freedesktop.org/patch/msgid/20190817152300.5370-1-chris@chris-wilson.co.uk -
Before we notify the fence signal callback, we remove the cb from the
list. However, since we are processing the entire list from underneath
the spinlock, we do not need to individual delete each element, but can
simply reset the link and the entire list.Signed-off-by: Chris Wilson
Cc: Daniel Vetter
Cc: Christian König
Reviewed-by: Christian König
Link: https://patchwork.freedesktop.org/patch/msgid/20190817144736.7826-4-chris@chris-wilson.co.uk
16 Aug, 2019
1 commit
-
This reverts
67c97fb79a7f ("dma-buf: add reservation_object_fences helper")
dd7a7d1ff2f1 ("drm/i915: use new reservation_object_fences helper")
0e1d8083bddb ("dma-buf: further relax reservation_object_add_shared_fence")
5d344f58da76 ("dma-buf: nuke reservation_object seq number")The scenario that defeats simply grabbing a set of shared/exclusive
fences and using them blissfully under RCU is that any of those fences
may be reallocated by a SLAB_TYPESAFE_BY_RCU fence slab cache. In this
scenario, while keeping the rcu_read_lock we need to establish that no
fence was changed in the dma_resv after a read (or full) memory barrier.Signed-off-by: Chris Wilson
Cc: Chris Wilson
Cc: Daniel Vetter
Acked-by: Christian König
Link: https://patchwork.freedesktop.org/patch/msgid/20190814182401.25009-1-chris@chris-wilson.co.uk
13 Aug, 2019
3 commits
-
Be more consistent with the naming of the other DMA-buf objects.
Signed-off-by: Christian König
Reviewed-by: Chris Wilson
Link: https://patchwork.freedesktop.org/patch/323401/ -
The only remaining use for this is to protect against setting a new exclusive
fence while we grab both exclusive and shared. That can also be archived by
looking if the exclusive fence has changed or not after completing the
operation.v2: switch setting excl fence to rcu_assign_pointer
Signed-off-by: Christian König
Reviewed-by: Chris Wilson
Link: https://patchwork.freedesktop.org/patch/322380/ -
During release of the syncpt, we remove it from the list of syncpt and
the tree, but only if it is not already been removed. However, during
signaling, we first remove the syncpt from the list. So, if we
concurrently free and signal the syncpt, the free may decide that it is
not part of the tree and immediately free itself -- meanwhile the
signaler goes on to use the now freed datastructure.In particular, we get struck by commit 0e2f733addbf ("dma-buf: make
dma_fence structure a bit smaller v2") as the cb_list is immediately
clobbered by the kfree_rcu.v2: Avoid calling into timeline_fence_release() from under the spinlock
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111381
Fixes: d3862e44daa7 ("dma-buf/sw-sync: Fix locking around sync_timeline lists")
References: 0e2f733addbf ("dma-buf: make dma_fence structure a bit smaller v2")
Signed-off-by: Chris Wilson
Cc: Sumit Semwal
Cc: Sean Paul
Cc: Gustavo Padovan
Cc: Christian König
Cc: # v4.14+
Acked-by: Christian König
Link: https://patchwork.freedesktop.org/patch/msgid/20190812154247.20508-1-chris@chris-wilson.co.uk
12 Aug, 2019
2 commits
-
Same as for the individual fences, we want to report the actual status
of the fence when queried.Reported-by: Petri Latvala
Signed-off-by: Chris Wilson
Cc: Sumit Semwal
Cc: Gustavo Padovan
Cc: Petri Latvala
Reviewed-by: Matthew Auld
Link: https://patchwork.freedesktop.org/patch/msgid/20190812091203.29871-1-chris@chris-wilson.co.uk -
When one of the array of fences is signaled, propagate its errors to the
parent fence-array (keeping the first error to be raised).v2: Opencode cmpxchg_local to avoid compiler freakout.
v3: Be careful not to flag an error if we race against signal-on-any.
v4: Same applies to installing the signal cb.
v5: Use cmpxchg to only set the error once before using a nifty idea by
Christian to avoid changing the status after emitting the signal.Signed-off-by: Chris Wilson
Cc: Sumit Semwal
Cc: Gustavo Padovan
Cc: Christian König
Reviewed-by: Christian König
Link: https://patchwork.freedesktop.org/patch/msgid/20190811210902.22112-1-chris@chris-wilson.co.uk
10 Aug, 2019
2 commits
-
Other cores don't busy wait any more and we removed the last user of checking
the seqno for changes. Drop updating the number for shared fences altogether.Signed-off-by: Christian König
Reviewed-by: Chris Wilson
Link: https://patchwork.freedesktop.org/patch/322379/?series=64837&rev=1 -
Add a new helper to get a consistent set of pointers from the reservation
object. While at it group all access helpers together in the header file.v2: correctly return shared_count as well
Signed-off-by: Christian König
Reviewed-by: Chris Wilson
Link: https://patchwork.freedesktop.org/patch/322378/?series=64837&rev=1
07 Aug, 2019
3 commits
-
We can add the exclusive fence to the list after making sure we got
a consistent state.Signed-off-by: Christian König
Reviewed-by: Chris Wilson
Link: https://patchwork.freedesktop.org/patch/322034/?series=64786&rev=1 -
Add some helpers to correctly allocate/free reservation_object_lists.
Otherwise we might forget to drop dma_fence references on list destruction.
Signed-off-by: Christian König
Reviewed-by: Chris Wilson
Link: https://patchwork.freedesktop.org/patch/322031/?series=64786&rev=1 -
When reservation_object_add_shared_fence is replacing an old fence with a new
one we should not drop the old one before the new one is in place.Otherwise other cores can busy wait for the new one to appear.
Signed-off-by: Christian König
Reviewed-by: Chris Wilson
Link: https://patchwork.freedesktop.org/patch/322030/
05 Aug, 2019
1 commit
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We can't free up the chain using recursion or we run into a stack overflow.
Manually free up the dangling chain nodes to avoid recursion.
Signed-off-by: Christian König
Acked-by: Lionel Landwerlin
Fixes: 7bf60c52e093 ("dma-buf: add new dma_fence_chain container v7")
Link: https://patchwork.freedesktop.org/patch/321612/
23 Jul, 2019
1 commit
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Noralf needs some SPI patches in 5.3 to merge some work on tinydrm.
Signed-off-by: Maxime Ripard
20 Jul, 2019
1 commit
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Pull vfs mount updates from Al Viro:
"The first part of mount updates.Convert filesystems to use the new mount API"
* 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
mnt_init(): call shmem_init() unconditionally
constify ksys_mount() string arguments
don't bother with registering rootfs
init_rootfs(): don't bother with init_ramfs_fs()
vfs: Convert smackfs to use the new mount API
vfs: Convert selinuxfs to use the new mount API
vfs: Convert securityfs to use the new mount API
vfs: Convert apparmorfs to use the new mount API
vfs: Convert openpromfs to use the new mount API
vfs: Convert xenfs to use the new mount API
vfs: Convert gadgetfs to use the new mount API
vfs: Convert oprofilefs to use the new mount API
vfs: Convert ibmasmfs to use the new mount API
vfs: Convert qib_fs/ipathfs to use the new mount API
vfs: Convert efivarfs to use the new mount API
vfs: Convert configfs to use the new mount API
vfs: Convert binfmt_misc to use the new mount API
convenience helper: get_tree_single()
convenience helper get_tree_nodev()
vfs: Kill sget_userns()
...
17 Jul, 2019
2 commits
-
As the set of shared fences is not being changed during reallocation of
the reservation list, we can skip updating the write_seqlock.Signed-off-by: Chris Wilson
Cc: Daniel Vetter
Cc: Christian König
Reviewed-by: Daniel Vetter
Link: https://patchwork.freedesktop.org/patch/msgid/20190712080314.21018-2-chris@chris-wilson.co.uk -
Pull rst conversion of docs from Mauro Carvalho Chehab:
"As agreed with Jon, I'm sending this big series directly to you, c/c
him, as this series required a special care, in order to avoid
conflicts with other trees"* tag 'docs/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (77 commits)
docs: kbuild: fix build with pdf and fix some minor issues
docs: block: fix pdf output
docs: arm: fix a breakage with pdf output
docs: don't use nested tables
docs: gpio: add sysfs interface to the admin-guide
docs: locking: add it to the main index
docs: add some directories to the main documentation index
docs: add SPDX tags to new index files
docs: add a memory-devices subdir to driver-api
docs: phy: place documentation under driver-api
docs: serial: move it to the driver-api
docs: driver-api: add remaining converted dirs to it
docs: driver-api: add xilinx driver API documentation
docs: driver-api: add a series of orphaned documents
docs: admin-guide: add a series of orphaned documents
docs: cgroup-v1: add it to the admin-guide book
docs: aoe: add it to the driver-api book
docs: add some documentation dirs to the driver-api book
docs: driver-model: move it to the driver-api book
docs: lp855x-driver.rst: add it to the driver-api book
...
16 Jul, 2019
1 commit
-
Pull drm updates from Dave Airlie:
"The biggest thing in this is the AMD Navi GPU support, this again
contains a bunch of header files that are large. These are the new AMD
RX5700 GPUs that just recently became available.New drivers:
- ST-Ericsson MCDE driver
- Ingenic JZ47xx SoCUAPI change:
- HDR source metadata propertyCore:
- HDR inforframes and EDID parsing
- drm hdmi infoframe unpacking
- remove prime sg_table caching into dma-buf
- New gem vram helpers to reduce driver code
- Lots of drmP.h removal
- reservation fencing fix
- documentation updates
- drm_fb_helper_connector removed
- mode name command handler rewritefbcon:
- Remove the fbcon notifiersttm:
- forward progress fixesdma-buf:
- make mmap call optional
- debugfs refcount fixes
- dma-fence free with pending signals fix
- each dma-buf gets an inodePanels:
- Lots of additional panel bindingsamdgpu:
- initial navi10 support
- avoid hw reset
- HDR metadata support
- new thermal sensors for vega asics
- RAS fixes
- use HMM rather than MMU notifier
- xgmi topology via kfd
- SR-IOV fixes
- driver reload fixes
- DC use a core bpc attribute
- Aux fixes for DC
- Bandwidth calc updates for DC
- Clock handling refactor
- kfd VEGAM supportvmwgfx:
- Coherent memory support changesi915:
- HDR Support
- HDMI i2c link
- Icelake multi-segmented gamma support
- GuC firmware update
- Mule Creek Canyon PCH support for EHL
- EHL platform updtes
- move i915.alpha_support to i915.force_probe
- runtime PM refactoring
- VBT parsing refactoring
- DSI fixes
- struct mutex dependency reduction
- GEM code reorgmali-dp:
- Komeda driver featuresmsm:
- dsi vs EPROBE_DEFER fixes
- msm8998 snapdragon 835 support
- a540 gpu support
- mdp5 and dpu interconnect supportexynos:
- drmP.h removaltegra:
- misc fixestda998x:
- audio support improvements
- pixel repeated mode support
- quantisation range handling corrections
- HDMI vendor info fixarmada:
- interlace support fix
- overlay/video plane register handling refactor
- add gamma supportrockchip:
- RX3328 supportpanfrost:
- expose perf counters via hidden ioctlsvkms:
- enumerate CRC sources listast:
- rework BO handlingmgag200:
- rework BO handlingdw-hdmi:
- suspend/resume supportrcar-du:
- R8A774A1 Soc Support
- LVDS dual-link mode support
- Additional formats
- Misc fixesomapdrm:
- DSI command mode display supportstm
- fb modifier support
- runtime PM supportsun4i:
- use vmap opsvc4:
- binner bo binding reworkv3d:
- compute shader support
- resync/sync fixes
- job management refactoringlima:
- NULL pointer in irq handler fix
- scheduler default timeoutvirtio:
- fence seqno support
- trace eventsbochs:
- misc fixestc458767:
- IRQ/HDP handlingsii902x:
- HDMI audio supportatmel-hlcdc:
- misc fixesmeson:
- zpos support"* tag 'drm-next-2019-07-16' of git://anongit.freedesktop.org/drm/drm: (1815 commits)
Revert "Merge branch 'vmwgfx-next' of git://people.freedesktop.org/~thomash/linux into drm-next"
Revert "mm: adjust apply_to_pfn_range interface for dropped token."
mm: adjust apply_to_pfn_range interface for dropped token.
drm/amdgpu/navi10: add uclk activity sensor
drm/amdgpu: properly guard the generic discovery code
drm/amdgpu: add missing documentation on new module parameters
drm/amdgpu: don't invalidate caches in RELEASE_MEM, only do the writeback
drm/amd/display: avoid 64-bit division
drm/amdgpu/psp11: simplify the ucode register logic
drm/amdgpu: properly guard DC support in navi code
drm/amd/powerplay: vega20: fix uninitialized variable use
drm/amd/display: dcn20: include linux/delay.h
amdgpu: make pmu support optional
drm/amd/powerplay: Zero initialize current_rpm in vega20_get_fan_speed_percent
drm/amd/powerplay: Zero initialize freq in smu_v11_0_get_current_clk_freq
drm/amd/powerplay: Use memset to initialize metrics structs
drm/amdgpu/mes10.1: Fix header guard
drm/amd/powerplay: add temperature sensor support for navi10
drm/amdgpu: fix scheduler timeout calc
drm/amdgpu: Prepare for hmm_range_register API change (v2)
...
15 Jul, 2019
2 commits
-
There are lots of documents under Documentation/*.txt and a few other
orphan documents elsehwere that belong to the driver-API book.Move them to their right place.
Reviewed-by: Cornelia Huck # vfio-related parts
Acked-by: Logan Gunthorpe # switchtec
Signed-off-by: Mauro Carvalho Chehab -
Since kmalloc() will round up the allocation to the next slab size or
page, it will normally return a pointer to a memory block bigger than we
asked for. We can query for the actual size of the allocated block using
ksize() and expand our variable size reservation_list to take advantage
of that extra space.Signed-off-by: Chris Wilson
Cc: Christian König
Cc: Michel Dänzer
Reviewed-by: Michel Dänzer
Reviewed-by: Christian König
Link: https://patchwork.freedesktop.org/patch/msgid/20190712080314.21018-1-chris@chris-wilson.co.uk
28 Jun, 2019
1 commit
-
They are not used that often and certainly not in a hot path.
Make them normal functions instead of an inline.Signed-off-by: Christian König
Reviewed-by: Daniel Vetter
Link: https://patchwork.freedesktop.org/patch/314480/
19 Jun, 2019
1 commit
-
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not see http www gnu org
licensesextracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 503 file(s).
Signed-off-by: Thomas Gleixner
Reviewed-by: Alexios Zavras
Reviewed-by: Allison Randal
Reviewed-by: Enrico Weigelt
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190602204653.811534538@linutronix.de
Signed-off-by: Greg Kroah-Hartman
