Commit graph

1015359 commits

Author SHA1 Message Date
Jani Nikula
c7b397e9ca Merge tag 'gvt-next-fixes-2021-04-29' of https://github.com/intel/gvt-linux into drm-intel-next-fixes
gvt-next-fixes-2021-04-29

- Fix possible divide error in vgpu display rate calculation (Colin)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
From: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210429085142.GT1551@zhen-hp.sh.intel.com
2021-04-29 13:15:51 +03:00
Catalin Marinas
75516c75a7 arm64: doc: Add brk/mmap/mremap() to the Tagged Address ABI Exceptions
Prior to commit dcde237319 ("mm: Avoid creating virtual address
aliases in brk()/mmap()/mremap()"), the kernel allowed tagged addresses
to be passed to the brk/mmap/mremap() syscalls. This relaxation was
tightened in 5.6 (backported to stable 5.4) but the
tagged-address-abi.rst document was only partially updated.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Fixes: dcde237319 ("mm: Avoid creating virtual address aliases in brk()/mmap()/mremap()")
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Cc: Will Deacon <will@kernel.org>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Link: https://lore.kernel.org/r/20210423175134.14838-1-catalin.marinas@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-04-29 10:23:45 +01:00
Yang Li
9b924f4f0d psci: Remove unneeded semicolon
Eliminate the following coccicheck warning:
./drivers/firmware/psci/psci.c:141:2-3: Unneeded semicolon

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Link: https://lore.kernel.org/r/1619659589-4775-1-git-send-email-yang.lee@linux.alibaba.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-04-29 10:22:12 +01:00
Colin Xu
d385c16173 drm/i915/gvt: Prevent divided by zero when calculating refresh rate
To get refresh rate as vblank timer period and keep the precision, the
calculation of rate is multiplied by 1000. However old logic was using:
rate = pixel clock / (h * v / 1000). When the h/v total is invalid, like
all 0, h * v / 1000 will be rounded to 0, which leads to a divided by 0
fault.

0 H/V are already checked above. Instead of divide after divide, refine
the calculation to divide after multiply: "pixel clock * 1000 / (h * v)"
Guest driver should guarantee the correctness of the timing regs' value.

Fixes: 6a4500c7b8 ("drm/i915/gvt: Get accurate vGPU virtual display refresh rate from vreg")
Reported-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20210416083355.159305-1-colin.xu@intel.com
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2021-04-29 17:00:09 +08:00
Simon Ser
e0c16eb4b3 amdgpu: fix GEM obj leak in amdgpu_display_user_framebuffer_create
This error code-path is missing a drm_gem_object_put call. Other
error code-paths are fine.

Signed-off-by: Simon Ser <contact@emersion.fr>
Fixes: 1769152ac6 ("drm/amdgpu: Fail fb creation from imported dma-bufs. (v2)")
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Harry Wentland <hwentlan@amd.com>
Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Cc: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2021-04-29 00:04:27 -04:00
Kai-Heng Feng
8c3dd61cfa drm/amdgpu: Register VGA clients after init can no longer fail
When an amdgpu device fails to init, it makes another VGA device cause
kernel splat:
kernel: amdgpu 0000:08:00.0: amdgpu: amdgpu_device_ip_init failed
kernel: amdgpu 0000:08:00.0: amdgpu: Fatal error during GPU init
kernel: amdgpu: probe of 0000:08:00.0 failed with error -110
...
kernel: amdgpu 0000:01:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=none
kernel: BUG: kernel NULL pointer dereference, address: 0000000000000018
kernel: #PF: supervisor read access in kernel mode
kernel: #PF: error_code(0x0000) - not-present page
kernel: PGD 0 P4D 0
kernel: Oops: 0000 [#1] SMP NOPTI
kernel: CPU: 6 PID: 1080 Comm: Xorg Tainted: G        W         5.12.0-rc8+ #12
kernel: Hardware name: HP HP EliteDesk 805 G6/872B, BIOS S09 Ver. 02.02.00 12/30/2020
kernel: RIP: 0010:amdgpu_device_vga_set_decode+0x13/0x30 [amdgpu]
kernel: Code: 06 31 c0 c3 b8 ea ff ff ff 5d c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1f 44 00 00 55 48 8b 87 90 06 00 00 48 89 e5 53 89 f3 <48> 8b 40 18 40 0f b6 f6 e8 40 58 39 fd 80 fb 01 5b 5d 19 c0 83 e0
kernel: RSP: 0018:ffffae3c0246bd68 EFLAGS: 00010002
kernel: RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
kernel: RDX: ffff8dd1af5a8560 RSI: 0000000000000000 RDI: ffff8dce8c160000
kernel: RBP: ffffae3c0246bd70 R08: ffff8dd1af5985c0 R09: ffffae3c0246ba38
kernel: R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000246
kernel: R13: 0000000000000000 R14: 0000000000000003 R15: ffff8dce81490000
kernel: FS:  00007f9303d8fa40(0000) GS:ffff8dd1af580000(0000) knlGS:0000000000000000
kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: CR2: 0000000000000018 CR3: 0000000103cfa000 CR4: 0000000000350ee0
kernel: Call Trace:
kernel:  vga_arbiter_notify_clients.part.0+0x4a/0x80
kernel:  vga_get+0x17f/0x1c0
kernel:  vga_arb_write+0x121/0x6a0
kernel:  ? apparmor_file_permission+0x1c/0x20
kernel:  ? security_file_permission+0x30/0x180
kernel:  vfs_write+0xca/0x280
kernel:  ksys_write+0x67/0xe0
kernel:  __x64_sys_write+0x1a/0x20
kernel:  do_syscall_64+0x38/0x90
kernel:  entry_SYSCALL_64_after_hwframe+0x44/0xae
kernel: RIP: 0033:0x7f93041e02f7
kernel: Code: 75 05 48 83 c4 58 c3 e8 f7 33 ff ff 0f 1f 80 00 00 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
kernel: RSP: 002b:00007fff60e49b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
kernel: RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f93041e02f7
kernel: RDX: 000000000000000b RSI: 00007fff60e49b40 RDI: 000000000000000f
kernel: RBP: 00007fff60e49b40 R08: 00000000ffffffff R09: 00007fff60e499d0
kernel: R10: 00007f93049350b5 R11: 0000000000000246 R12: 000056111d45e808
kernel: R13: 0000000000000000 R14: 000056111d45e7f8 R15: 000056111d46c980
kernel: Modules linked in: nls_iso8859_1 snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hwdep snd_hda_core snd_pcm snd_seq input_leds snd_seq_device snd_timer snd soundcore joydev kvm_amd serio_raw k10temp mac_hid hp_wmi ccp kvm sparse_keymap wmi_bmof ucsi_acpi efi_pstore typec_ucsi rapl typec video wmi sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs blake2b_generic zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx libcrc32c xor raid6_pq raid1 raid0 multipath linear dm_mirror dm_region_hash dm_log hid_generic usbhid hid amdgpu drm_ttm_helper ttm iommu_v2 gpu_sched i2c_algo_bit drm_kms_helper syscopyarea sysfillrect crct10dif_pclmul sysimgblt crc32_pclmul fb_sys_fops ghash_clmulni_intel cec rc_core aesni_intel crypto_simd psmouse cryptd r8169 i2c_piix4 drm ahci xhci_pci realtek libahci xhci_pci_renesas gpio_amdpt gpio_generic
kernel: CR2: 0000000000000018
kernel: ---[ end trace 76d04313d4214c51 ]---

Commit 4192f7b576 ("drm/amdgpu: unmap register bar on device init
failure") makes amdgpu_driver_unload_kms() skips amdgpu_device_fini(),
so the VGA clients remain registered. So when
vga_arbiter_notify_clients() iterates over registered clients, it causes
NULL pointer dereference.

Since there's no reason to register VGA clients that early, so solve
the issue by putting them after all the goto cleanups.

v2:
 - Remove redundant vga_switcheroo cleanup in failed: label.

Fixes: 4192f7b576 ("drm/amdgpu: unmap register bar on device init failure")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-29 00:03:21 -04:00
Pavan Kumar Ramayanam
b45aeb2dea drm/amdgpu: Handling of amdgpu_device_resume return value for graceful teardown
The runtime resume PM op disregards the return value from
amdgpu_device_resume(), masking errors for failed resumes at the PM
layer.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Pavan Kumar Ramayanam <pavan.ramayanam@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-29 00:03:11 -04:00
Victor Zhao
4b12ee6f42 drm/amdgpu: fix r initial values
Sriov gets suspend of IP block <dce_virtual> failed as return
value was not initialized.

v2: return 0 directly to align original code semantic before this
was broken out into a separate helper function instead of setting
initial values

Signed-off-by: Victor Zhao <Victor.Zhao@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2021-04-29 00:02:40 -04:00
Mikita Lipski
3cbae5abfa drm/amd/display: fix wrong statement in mst hpd debugfs
[why]
Previous statement would always evaluate to true
making it meaningless
[how]
Just check if a connector is MST by checking if its port exists.

Fixes: 41efcd3879 ("drm/amd/display: Add MST capability to trigger_hotplug interface")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Wayne Lin <waynelin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-28 23:56:14 -04:00
Darren Powell
d7b4a6077e amdgpu/pm: set pp_dpm_dcefclk to readonly on NAVI10 and newer gpus
v2 : change condition to apply to all chips after NAVI10

Writing to dcefclk causes the gpu to become unresponsive, and requires a reboot.
Patch prevents user from successfully writing to file pp_dpm_dcefclk on parts
NAVI10 and newer, and gives better user feedback that this operation is not allowed.

Signed-off-by: Darren Powell <darren.powell@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-28 23:56:14 -04:00
Darren Powell
b117b3964f amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID
Writing to dcefclk causes the gpu to become unresponsive, and requires a reboot.
Patch ignores a .force_clk_levels(SMU_DCEFCLK) call and issues an
info message.

Signed-off-by: Darren Powell <darren.powell@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-28 23:56:14 -04:00
Christian König
20a5f5a98e drm/amdgpu: fix concurrent VM flushes on Vega/Navi v2
Starting with Vega the hardware supports concurrent flushes
of VMID which can be used to implement per process VMID
allocation.

But concurrent flushes are mutual exclusive with back to
back VMID allocations, fix this to avoid a VMID used in
two ways at the same time.

v2: don't set ring to NULL

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Tested-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2021-04-28 23:45:54 -04:00
Harry Wentland
d89f6048bd drm/amd/display: Reject non-zero src_y and src_x for video planes
[Why]
This hasn't been well tested and leads to complete system hangs on DCN1
based systems, possibly others.

The system hang can be reproduced by gesturing the video on the YouTube
Android app on ChromeOS into full screen.

[How]
Reject atomic commits with non-zero drm_plane_state.src_x or src_y values.

v2:
 - Add code comment describing the reason we're rejecting non-zero
   src_x and src_y
 - Drop gerrit Change-Id
 - Add stable CC
 - Based on amd-staging-drm-next

v3: removed trailing whitespace

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Cc: stable@vger.kernel.org
Cc: nicholas.kazlauskas@amd.com
Cc: amd-gfx@lists.freedesktop.org
Cc: alexander.deucher@amd.com
Cc: Roman.Li@amd.com
Cc: hersenxs.wu@amd.com
Cc: danny.wang@amd.com
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2021-04-28 23:45:22 -04:00
Can Guo
ce4f62f9dd scsi: ufs: core: Narrow down fast path in system suspend path
If spm_lvl is set to 0 or 1, when system suspend kicks start and HBA is
runtime active, system suspend may just bail without doing anything (the
fast path), leaving other contexts still running, e.g., clock gating and
clock scaling. When system resume kicks start, concurrency can happen
between ufshcd_resume() and these contexts, leading to various stability
issues.

Add a check against HBA's runtime state and allowing fast path only if HBA
is runtime suspended, otherwise let system suspend go ahead call
ufshcd_suspend(). This will guarantee that these contexts are stopped by
either runtime suspend or system suspend.

Link: https://lore.kernel.org/r/1619408921-30426-4-git-send-email-cang@codeaurora.org
Fixes: 0b25773434 ("scsi: ufs: optimize system suspend handling")
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-28 23:15:18 -04:00
Can Guo
637822e63b scsi: ufs: core: Cancel rpm_dev_flush_recheck_work during system suspend
During ufs system suspend, leaving rpm_dev_flush_recheck_work running or
pending is risky because concurrency may happen between system
suspend/resume and runtime resume routine. Fix this by cancelling
rpm_dev_flush_recheck_work synchronously during system suspend.

Link: https://lore.kernel.org/r/1619408921-30426-3-git-send-email-cang@codeaurora.org
Fixes: 51dd905bd2 ("scsi: ufs: Fix WriteBooster flush during runtime suspend")
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-28 23:15:17 -04:00
Can Guo
23043dd87b scsi: ufs: core: Do not put UFS power into LPM if link is broken
During resume, if link is broken due to AH8 failure, make sure
ufshcd_resume() does not put UFS power back into LPM.

Link: https://lore.kernel.org/r/1619408921-30426-2-git-send-email-cang@codeaurora.org
Fixes: 4db7a23605 ("scsi: ufs: Fix concurrency of error handler and other error recovery paths")
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-28 23:15:17 -04:00
Anastasia Kovaleva
fcb16d9a8e scsi: qla2xxx: Prevent PRLI in target mode
In a case when the initiator in P2P mode by some circumstances does not
send PRLI, the target, in a case when the target port's WWPN is less than
initiator's, changes the discovery state in DSC_GNL. When gnl completes it
sends PRLI to the initiator.

Usually the initiator in P2P mode always sends PRLI. We caught this issue
on Linux stable v5.4.6 https://www.spinics.net/lists/stable/msg458515.html.

Fix this particular corner case in the behaviour of the P2P mod target
login state machine.

Link: https://lore.kernel.org/r/20210422153414.4022-1-a.kovaleva@yadro.com
Fixes: a9ed06d4e6 ("scsi: qla2xxx: Allow PLOGI in target mode")
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Anastasia Kovaleva <a.kovaleva@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-28 22:55:01 -04:00
Bikash Hazarika
000e68faef scsi: qla2xxx: Add marginal path handling support
Add support for eh_should_retry_cmd callback in qla2xxx host template.

Link: https://lore.kernel.org/r/20210427050914.7270-1-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Bikash Hazarika <bhazarika@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-28 22:55:01 -04:00
Bodo Stroesser
9814b55cde scsi: target: tcmu: Return from tcmu_handle_completions() if cmd_id not found
If tcmu_handle_completions() finds an invalid cmd_id while looping over cmd
responses from userspace it sets TCMU_DEV_BIT_BROKEN and breaks the
loop. This means that it does further handling for the tcmu device.

Skip that handling by replacing 'break' with 'return'.

Additionally change tcmu_handle_completions() from unsigned int to bool,
since the value used in return already is bool.

Link: https://lore.kernel.org/r/20210423150123.24468-1-bostroesser@gmail.com
Signed-off-by: Bodo Stroesser <bostroesser@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-28 22:55:00 -04:00
Keoseong Park
2f1137140f scsi: ufs: core: Fix a typo in ufs-sysfs.c
Fix the following typo:

 ufschd_uic_link_state_to_string() -> ufshcd_uic_link_state_to_string()
 ufschd_ufs_dev_pwr_mode_to_string() -> ufshcd_ufs_dev_pwr_mode_to_string()

Link: https://lore.kernel.org/r/1381713434.61619509208911.JavaMail.epsvc@epcpadp3
Signed-off-by: Keoseong Park <keosung.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-28 22:55:00 -04:00
Linus Torvalds
d72cd4ad41 SCSI misc on 20210428
This series consists of the usual driver updates (ufs, target, tcmu,
 smartpqi, lpfc, zfcp, qla2xxx, mpt3sas, pm80xx).  The major core
 change is using a sbitmap instead of an atomic for queue tracking.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This consists of the usual driver updates (ufs, target, tcmu,
  smartpqi, lpfc, zfcp, qla2xxx, mpt3sas, pm80xx).

  The major core change is using a sbitmap instead of an atomic for
  queue tracking"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (412 commits)
  scsi: target: tcm_fc: Fix a kernel-doc header
  scsi: target: Shorten ALUA error messages
  scsi: target: Fix two format specifiers
  scsi: target: Compare explicitly with SAM_STAT_GOOD
  scsi: sd: Introduce a new local variable in sd_check_events()
  scsi: dc395x: Open-code status_byte(u8) calls
  scsi: 53c700: Open-code status_byte(u8) calls
  scsi: smartpqi: Remove unused functions
  scsi: qla4xxx: Remove an unused function
  scsi: myrs: Remove unused functions
  scsi: myrb: Remove unused functions
  scsi: mpt3sas: Fix two kernel-doc headers
  scsi: fcoe: Suppress a compiler warning
  scsi: libfc: Fix a format specifier
  scsi: aacraid: Remove an unused function
  scsi: core: Introduce enum scsi_disposition
  scsi: core: Modify the scsi_send_eh_cmnd() return value for the SDEV_BLOCK case
  scsi: core: Rename scsi_softirq_done() into scsi_complete()
  scsi: core: Remove an incorrect comment
  scsi: core: Make the scsi_alloc_sgtables() documentation more accurate
  ...
2021-04-28 17:22:10 -07:00
Linus Torvalds
238da4d004 VFIO updates for v5.13-rc1
- Embed struct vfio_device into vfio driver structures (Jason Gunthorpe)
 
  - Make vfio_mdev type safe (Jason Gunthorpe)
 
  - Remove vfio-pci NVLink2 extensions for POWER9 (Christoph Hellwig)
 
  - Update vfio-pci IGD extensions for OpRegion 2.1+ (Fred Gao)
 
  - Various spelling/blank line fixes (Zhen Lei, Zhou Wang, Bhaskar Chowdhury)
 
  - Simplify unpin_pages error handling (Shenming Lu)
 
  - Fix i915 mdev Kconfig dependency (Arnd Bergmann)
 
  - Remove unused structure member (Keqian Zhu)
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Merge tag 'vfio-v5.13-rc1' of git://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

 - Embed struct vfio_device into vfio driver structures (Jason
   Gunthorpe)

 - Make vfio_mdev type safe (Jason Gunthorpe)

 - Remove vfio-pci NVLink2 extensions for POWER9 (Christoph Hellwig)

 - Update vfio-pci IGD extensions for OpRegion 2.1+ (Fred Gao)

 - Various spelling/blank line fixes (Zhen Lei, Zhou Wang, Bhaskar
   Chowdhury)

 - Simplify unpin_pages error handling (Shenming Lu)

 - Fix i915 mdev Kconfig dependency (Arnd Bergmann)

 - Remove unused structure member (Keqian Zhu)

* tag 'vfio-v5.13-rc1' of git://github.com/awilliam/linux-vfio: (43 commits)
  vfio/gvt: fix DRM_I915_GVT dependency on VFIO_MDEV
  vfio/iommu_type1: Remove unused pinned_page_dirty_scope in vfio_iommu
  vfio/mdev: Correct the function signatures for the mdev_type_attributes
  vfio/mdev: Remove kobj from mdev_parent_ops->create()
  vfio/gvt: Use mdev_get_type_group_id()
  vfio/gvt: Make DRM_I915_GVT depend on VFIO_MDEV
  vfio/mbochs: Use mdev_get_type_group_id()
  vfio/mdpy: Use mdev_get_type_group_id()
  vfio/mtty: Use mdev_get_type_group_id()
  vfio/mdev: Add mdev/mtype_get_type_group_id()
  vfio/mdev: Remove duplicate storage of parent in mdev_device
  vfio/mdev: Add missing error handling to dev_set_name()
  vfio/mdev: Reorganize mdev_device_create()
  vfio/mdev: Add missing reference counting to mdev_type
  vfio/mdev: Expose mdev_get/put_parent to mdev_private.h
  vfio/mdev: Use struct mdev_type in struct mdev_device
  vfio/mdev: Simplify driver registration
  vfio/mdev: Add missing typesafety around mdev_device
  vfio/mdev: Do not allow a mdev_type to have a NULL parent pointer
  vfio/mdev: Fix missing static's on MDEV_TYPE_ATTR's
  ...
2021-04-28 17:19:47 -07:00
Linus Torvalds
35655ceb31 Here's a collection of largely clk driver updates for the merge window. The
usual suspects are here: i.MX, Qualcomm, Renesas, Allwinner, Samsung, and
 Rockchip, but it feels pretty light on commits. There's only one real commit to
 the framework core and that's to consolidate code. Otherwise the diffstat is
 dominated by many Qualcomm clk driver patches that modernize the driver for the
 proper way of speciying clk parents. That's shifting data around, which could
 subtly break things so I'll be on the lookout for fixes.
 
 New Drivers:
  - Proper clk driver for Mediatek MT7621 SoCs
  - Support for the clock controller on the new Rockchip rk3568
 
 Updates:
  - Simplify Zynq Kconfig dependencies
  - Use clk_hw pointers in socfpga driver
  - Cleanup parent data in qcom clk drivers
  - Some cleanups for rk3399 modularization
  - Fix reparenting of i.MX UART clocks by initializing only the ones
    associated to stdout
  - Correct the PCIE clocks for i.MX8MP and i.MX8MQ
  - Make i.MX LPCG and SCU clocks return on registering failure
  - Kernel doc fixes
  - Add DAB hardware accelerator clocks on Renesas R-Car E3 and M3-N
  - Add timer (TMU) clocks on Renesas R-Car H3 ES1.0
  - Add Timer (TMU & CMT) and thermal sensor (TSC) clocks on Renesas R-Car V3U
  - Sigma-delta modulation on Allwinner V3s audio PLL
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "Here's a collection of largely clk driver updates. The usual suspects
  are here: i.MX, Qualcomm, Renesas, Allwinner, Samsung, and Rockchip,
  but it feels pretty light on commits.

  There's only one real commit to the framework core and that's to
  consolidate code. Otherwise the diffstat is dominated by many Qualcomm
  clk driver patches that modernize the driver for the proper way of
  speciying clk parents. That's shifting data around, which could subtly
  break things so I'll be on the lookout for fixes.

  New Drivers:
   - Proper clk driver for Mediatek MT7621 SoCs
   - Support for the clock controller on the new Rockchip rk3568

  Updates:
   - Simplify Zynq Kconfig dependencies
   - Use clk_hw pointers in socfpga driver
   - Cleanup parent data in qcom clk drivers
   - Some cleanups for rk3399 modularization
   - Fix reparenting of i.MX UART clocks by initializing only the ones
     associated to stdout
   - Correct the PCIE clocks for i.MX8MP and i.MX8MQ
   - Make i.MX LPCG and SCU clocks return on registering failure
   - Kernel doc fixes
   - Add DAB hardware accelerator clocks on Renesas R-Car E3 and M3-N
   - Add timer (TMU) clocks on Renesas R-Car H3 ES1.0
   - Add Timer (TMU & CMT) and thermal sensor (TSC) clocks on
     Renesas R-Car V3U
   - Sigma-delta modulation on Allwinner V3s audio PLL"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (82 commits)
  MAINTAINERS: add MT7621 CLOCK maintainer
  staging: mt7621-dts: use valid vendor 'mediatek' instead of invalid 'mtk'
  staging: mt7621-dts: make use of new 'mt7621-clk'
  clk: ralink: add clock driver for mt7621 SoC
  clk: uniphier: Fix potential infinite loop
  clk: qcom: rpmh: add support for SDX55 rpmh IPA clock
  clk: qcom: gcc-sdm845: get rid of the test clock
  clk: qcom: convert SDM845 Global Clock Controller to parent_data
  dt-bindings: clock: separate SDM845 GCC clock bindings
  clk: qcom: apss-ipq-pll: Add missing MODULE_DEVICE_TABLE
  clk: qcom: a53-pll: Add missing MODULE_DEVICE_TABLE
  clk: qcom: a7-pll: Add missing MODULE_DEVICE_TABLE
  dt: bindings: add mt7621-sysc device tree binding documentation
  dt-bindings: clock: add dt binding header for mt7621 clocks
  clk: samsung: Remove redundant dev_err calls
  clk: zynqmp: pll: add set_pll_mode to check condition in zynqmp_pll_enable
  clk: zynqmp: move zynqmp_pll_set_mode out of round_rate callback
  clk: zynqmp: Drop dependency on ARCH_ZYNQMP
  clk: zynqmp: Enable the driver if ZYNQMP_FIRMWARE is selected
  clk: qcom: gcc-sm8350: use ARRAY_SIZE instead of specifying num_parents
  ...
2021-04-28 17:13:56 -07:00
Linus Torvalds
d8201efe75 - qcom: enable support for SM8350 and SC7280
- sprd: refcounting channel usage
 		specify interrupt names in dt
 		support sc9863a
 - arm: drop redundant print
 - ti: convert dt-bindings to json schema
 - misc: spelling fixes
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Merge tag 'mailbox-v5.13' of git://git.linaro.org/landing-teams/working/fujitsu/integration

Pull mailbox updates from Jassi Brar:
 "qcom:
   - enable support for SM8350 and SC7280

  sprd:
   - refcount channel usage
   - specify interrupt names in dt
   - support sc9863a

  arm:
   - drop redundant print

  ti:
   - convert dt-bindings to json schema

  and misc spelling fixes"

* tag 'mailbox-v5.13' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  dt-bindings: mailbox: qcom-ipcc: Add compatible for SC7280
  dt-bindings: mailbox: ti,secure-proxy: Convert to json schema
  mailbox: arm_mhu_db: Remove redundant dev_err call in mhu_db_probe()
  mailbox: sprd: Add supplementary inbox support
  dt-bindings: mailbox: Add interrupt-names to SPRD mailbox
  mailbox: sprd: Introduce refcnt when clients requests/free channels
  MAINTAINERS: Add DT bindings directory to mailbox
  mailbox: fix various typos in comments
  mailbox: pcc: fix platform_no_drv_owner.cocci warnings
  dt-bindings: mailbox: Add compatible for SM8350 IPCC
2021-04-28 16:10:33 -07:00
Linus Torvalds
c969f2451b - New Device Support
- Add support for PMI8994 to Qualcom WLED
    - Add support for KTD259 to Kinetic KTD253
 
  - Fix-ups
    - Device Tree related fix-ups; kinetic,ktd253
    - Use proper sequence during sync_toggle; qcom-wled
    - Fix Wmisleading-indentation warnings; jornada720_bl
 
  - Bug Fixes
    - Fix sync toggle on WLED4; qcom-wled
    - Fix FSC update on WLED5; qcom-wled
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Merge tag 'backlight-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight updates from Lee Jones:
 "New Device Support:
   - Add support for PMI8994 to Qualcom WLED
   - Add support for KTD259 to Kinetic KTD253

  Fix-ups:
   - Device Tree related fix-ups; kinetic,ktd253
   - Use proper sequence during sync_toggle; qcom-wled
   - Fix Wmisleading-indentation warnings; jornada720_bl

  Bug Fixes:
   - Fix sync toggle on WLED4; qcom-wled
   - Fix FSC update on WLED5; qcom-wled"

* tag 'backlight-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  backlight: journada720: Fix Wmisleading-indentation warning
  backlight: qcom-wled: Correct the sync_toggle sequence
  backlight: qcom-wled: Fix FSC update issue for WLED5
  dt-bindings: backlight: Add Kinetic KTD259 bindings
  backlight: ktd253: Support KTD259
  backlight: qcom-wled: Use sink_addr for sync toggle
  dt-bindings: backlight: qcom-wled: Add PMI8994 compatible
2021-04-28 16:02:58 -07:00
Linus Torvalds
71a5cc28e8 - Core Frameworks
- Add support for Software Nodes to MFD Core
    - Remove support for Device Properties from MFD Core
    - Use standard APIs in MFD Core
 
  - New Drivers
    - Add support for ROHM BD9576MUF and BD9573MUF PMICs
    - Add support for Netronix Embedded Controller, PWM and RTC
    - Add support for Actions Semi ATC260x PMICs and OnKey
 
  - New Device Support
    - Add support for DG1 PCIe Graphics Card to Intel PMT
    - Add support for ROHM BD71815 PMIC to ROHM BD71828
    - Add support for Tolino Shine 2 HD to Netronix Embedded Controller
    - Add support for AX10 BMC Secure Updates to Intel M10 BMC
 
  - Removed Device Support
    - Remove Arizona Extcon support from MFD
    - Remove ST-E AB8500 Power Supply code from MFD
    - Remove AB3100 altogether
 
  - New Functionality
    - Add support for SMBus and I2C modes to Dialog DA9063
    - Switch to using Software Nodes in Intel (various)
 
  - New/converted Device Tree bindings; rohm,bd71815-pmic, rohm,bd9576-pmic,
                                        netronix,ntxec, actions,atc260x,
 				       ricoh,rn5t618, qcom-pm8xxx
 
 - Fix-ups
    - Fix error handling/path; intel_pmt
    - Simplify code; rohm-bd718x7, ab8500-core, intel-m10-bmc
    - Trivial clean-ups (reordering, spelling); rohm-generic, rn5t618, max8997
    - Use correct data-type; db8500-prcmu
    - Remove superfluous code; lp87565, intel_quark_i2c_gpi, lpc_sch, twl
    - Use generic APIs/defines; lm3533-core, intel_quark_i2c_gpio
    - Regmap related fix-ups; intel-m10-bmc, sec-core
    - Reorder resource freeing during remove; intel_quark_i2c_gpio
    - Make table indexing more robust; intel_quark_i2c_gpio
    - Fix reference imbalances; arizona-irq
    - Staticify and (un)constify things; arizona-spi, stmpe, ene-kb3930,
                                         intel-lpss-acpi, intel-lpss-pci,
                                         atc260x-i2c, intel_quark_i2c_gpio
 
  - Bug Fixes
    - Fix incorrect (register) values; intel-m10-bmc
    - Kconfig related fixes; ABX500_CORE
    - Do not clear the Auto Reload Register; stm32-timers
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Merge tag 'mfd-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "Core Framework:
   - Add support for Software Nodes to MFD Core
   - Remove support for Device Properties from MFD Core
   - Use standard APIs in MFD Core

  New Drivers:
   - Add support for ROHM BD9576MUF and BD9573MUF PMICs
   - Add support for Netronix Embedded Controller, PWM and RTC
   - Add support for Actions Semi ATC260x PMICs and OnKey

  New Device Support:
   - Add support for DG1 PCIe Graphics Card to Intel PMT
   - Add support for ROHM BD71815 PMIC to ROHM BD71828
   - Add support for Tolino Shine 2 HD to Netronix Embedded Controller
   - Add support for AX10 BMC Secure Updates to Intel M10 BMC

  Removed Device Support:
   - Remove Arizona Extcon support from MFD
   - Remove ST-E AB8500 Power Supply code from MFD
   - Remove AB3100 altogether

  New Functionality:
   - Add support for SMBus and I2C modes to Dialog DA9063
   - Switch to using Software Nodes in Intel (various)

  New/converted Device Tree bindings:
   - rohm bd71815-pmic, rohm bd9576-pmic, netronix ntxec, actions
     atc260x, ricoh rn5t618, qcom pm8xxx

- Fix-ups:
   - Fix error handling/path; intel_pmt
   - Simplify code; rohm-bd718x7, ab8500-core, intel-m10-bmc
   - Trivial clean-ups (reordering, spelling); rohm-generic, rn5t618,
     max8997
   - Use correct data-type; db8500-prcmu
   - Remove superfluous code; lp87565, intel_quark_i2c_gpi, lpc_sch, twl
   - Use generic APIs/defines; lm3533-core, intel_quark_i2c_gpio
   - Regmap related fix-ups; intel-m10-bmc, sec-core
   - Reorder resource freeing during remove; intel_quark_i2c_gpio
   - Make table indexing more robust; intel_quark_i2c_gpio
   - Fix reference imbalances; arizona-irq
   - Staticify and (un)constify things; arizona-spi, stmpe, ene-kb3930,
     intel-lpss-acpi, intel-lpss-pci, atc260x-i2c, intel_quark_i2c_gpio

  Bug Fixes:
   - Fix incorrect (register) values; intel-m10-bmc
   - Kconfig related fixes; ABX500_CORE
   - Do not clear the Auto Reload Register; stm32-timers"

* tag 'mfd-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (84 commits)
  mfd: intel-m10-bmc: Add support for MAX10 BMC Secure Updates
  Revert "mfd: max8997: Add of_compatible to Extcon and Charger mfd_cell"
  mfd: twl: Remove unused inline function twl4030charger_usb_en()
  dt-bindings: mfd: Convert pm8xxx bindings to yaml
  dt-bindings: mfd: Add compatible for pmk8350 rtc
  i2c: designware: Get rid of legacy platform data
  mfd: intel_quark_i2c_gpio: Convert I²C to use software nodes
  mfd: lpc_sch: Partially revert "Add support for Intel Quark X1000"
  mfd: arizona: Fix rumtime PM imbalance on error
  mfd: max8997: Replace 8998 with 8997
  mfd: core: Use acpi_find_child_device() for child devices lookup
  mfd: intel_quark_i2c_gpio: Don't play dirty trick with const
  mfd: intel_quark_i2c_gpio: Enable MSI interrupt
  mfd: intel_quark_i2c_gpio: Reuse BAR definitions for MFD cell indexing
  mfd: ntxec: Support for EC in Tolino Shine 2 HD
  mfd: stm32-timers: Avoid clearing auto reload register
  mfd: intel_quark_i2c_gpio: Replace I²C speeds with descriptive definitions
  mfd: intel_quark_i2c_gpio: Remove unused struct device member
  mfd: intel_quark_i2c_gpio: Unregister resources in reversed order
  mfd: Kconfig: ABX500_CORE should depend on ARCH_U8500
  ...
2021-04-28 15:59:13 -07:00
Linus Torvalds
be18cd1fca MMC core:
- Fix hanging on I/O during system suspend for removable cards
  - Set read only for SD cards with permanent write protect bit
  - Power cycle the SD/SDIO card if CMD11 fails for UHS voltage
  - Issue a cache flush for eMMC only when it's enabled
  - Adopt to updated cache ctrl settings for eMMC from MMC ioctls
  - Use use device property API when parsing voltages
  - Don't retry eMMC sanitize cmds
  - Use the timeout from the MMC ioctl for eMMC santize cmds
 
 MMC host:
  - mmc_spi: Make of_mmc_spi.c resource provider agnostic
  - mmc_spi: Use polling for card detect even without voltage-ranges
  - sdhci: Check for reset prior to DMA address unmap
  - sdhci-acpi: Add support for the AMDI0041 eMMC controller variant
  - sdhci-esdhc-imx: Depending on OF Kconfig and cleanup code
  - sdhci-pci: Add PCI IDs for Intel LKF
  - sdhci-pci: Fix initialization of some SD cards for Intel BYT
  - sdhci-pci-gli: Various improvements for GL97xx variants
  - sdhci-of-dwcmshc: Enable support for MMC_CAP_WAIT_WHILE_BUSY
  - sdhci-of-dwcmshc: Add ACPI support for BlueField-3 SoC
  - sdhci-of-dwcmshc: Add Rockchip platform support
  - tmio/renesas_sdhi: Extend support for reset and use a reset controller
  - tmio/renesas_sdhi: Enable support for MMC_CAP_WAIT_WHILE_BUSY
  - tmio/renesas_sdhi: Various improvements
 
 MEMSTICK:
  - Minor improvements/cleanups.
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Merge tag 'mmc-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC and MEMSTICK updates from Ulf Hansson:
 "MMC core:
   - Fix hanging on I/O during system suspend for removable cards
   - Set read only for SD cards with permanent write protect bit
   - Power cycle the SD/SDIO card if CMD11 fails for UHS voltage
   - Issue a cache flush for eMMC only when it's enabled
   - Adopt to updated cache ctrl settings for eMMC from MMC ioctls
   - Use use device property API when parsing voltages
   - Don't retry eMMC sanitize cmds
   - Use the timeout from the MMC ioctl for eMMC santize cmds

  MMC host:
   - mmc_spi: Make of_mmc_spi.c resource provider agnostic
   - mmc_spi: Use polling for card detect even without voltage-ranges
   - sdhci: Check for reset prior to DMA address unmap
   - sdhci-acpi: Add support for the AMDI0041 eMMC controller variant
   - sdhci-esdhc-imx: Depending on OF Kconfig and cleanup code
   - sdhci-pci: Add PCI IDs for Intel LKF
   - sdhci-pci: Fix initialization of some SD cards for Intel BYT
   - sdhci-pci-gli: Various improvements for GL97xx variants
   - sdhci-of-dwcmshc: Enable support for MMC_CAP_WAIT_WHILE_BUSY
   - sdhci-of-dwcmshc: Add ACPI support for BlueField-3 SoC
   - sdhci-of-dwcmshc: Add Rockchip platform support
   - tmio/renesas_sdhi: Extend support for reset and use a reset controller
   - tmio/renesas_sdhi: Enable support for MMC_CAP_WAIT_WHILE_BUSY
   - tmio/renesas_sdhi: Various improvements

  MEMSTICK:
   - Minor improvements/cleanups"

* tag 'mmc-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (79 commits)
  mmc: block: Issue a cache flush only when it's enabled
  memstick: r592: ignore kfifo_out() return code again
  mmc: block: Update ext_csd.cache_ctrl if it was written
  mmc: mmc_spi: Make of_mmc_spi.c resource provider agnostic
  mmc: mmc_spi: Use already parsed IRQ
  mmc: mmc_spi: Drop unused NO_IRQ definition
  mmc: mmc_spi: Set up polling even if voltage-ranges is not present
  mmc: core: Convert mmc_of_parse_voltage() to use device property API
  mmc: core: Correct descriptions in mmc_of_parse()
  mmc: dw_mmc-rockchip: Just set default sample value for legacy mode
  mmc: sdhci-s3c: constify uses of driver/match data
  mmc: sdhci-s3c: correct kerneldoc of sdhci_s3c_drv_data
  mmc: sdhci-s3c: simplify getting of_device_id match data
  mmc: tmio: always restore irq register
  mmc: sdhci-pci-gli: Enlarge ASPM L1 entry delay of GL975x
  mmc: core: Let eMMC sanitize not retry in case of timeout/failure
  mmc: core: Add a retries parameter to __mmc_switch function
  memstick: r592: remove unused variable
  mmc: sdhci-st: Remove unnecessary error log
  mmc: sdhci-msm: Remove unnecessary error log
  ...
2021-04-28 15:56:51 -07:00
Linus Torvalds
6fa09d3139 A bunch of little cleanups
Nothing major, no functional changes.
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Merge tag 'for-linus-5.13-1' of git://github.com/cminyard/linux-ipmi

Pull IPMI updates from Corey Minyard:
 "A bunch of little cleanups

  Nothing major, no functional changes"

* tag 'for-linus-5.13-1' of git://github.com/cminyard/linux-ipmi:
  ipmi_si: Join string literals back
  ipmi_si: Drop redundant check before calling put_device()
  ipmi_si: Use strstrip() to remove surrounding spaces
  ipmi_si: Get rid of ->addr_source_cleanup()
  ipmi_si: Reuse si_to_str[] array in ipmi_hardcode_init_one()
  ipmi_si: Introduce ipmi_panic_event_str[] array
  ipmi_si: Use proper ACPI macros to check error code for failures
  ipmi_si: Utilize temporary variable to hold device pointer
  ipmi_si: Remove bogus err_free label
  ipmi_si: Switch to use platform_get_mem_or_io()
  ipmi: Handle device properties with software node API
  ipmi:ssif: make ssif_i2c_send() void
  ipmi: Refine retry conditions for getting device id
2021-04-28 15:54:57 -07:00
Linus Torvalds
0080665fbd Devicetree updates for v5.13:
- Refactoring powerpc and arm64 kexec DT handling to common code. This
   enables IMA on arm64.
 
 - Add kbuild support for applying DT overlays at build time. The first
   user are the DT unittests.
 
 - Fix kerneldoc formatting and W=1 warnings in drivers/of/
 
 - Fix handling 64-bit flag on PCI resources
 
 - Bump dtschema version required to v2021.2.1
 
 - Enable undocumented compatible checks for dtbs_check. This allows
   tracking of missing binding schemas.
 
 - DT docs improvements. Regroup the DT docs and add the example schema
   and DT kernel ABI docs to the doc build.
 
 - Convert Broadcom Bluetooth and video-mux bindings to schema
 
 - Add QCom sm8250 Venus video codec binding schema
 
 - Add vendor prefixes for AESOP, YIC System Co., Ltd, and Siliconfile
   Technologies Inc.
 
 - Cleanup of DT schema type references on common properties and
   standard unit properties
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Merge tag 'devicetree-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:

 - Refactor powerpc and arm64 kexec DT handling to common code. This
   enables IMA on arm64.

 - Add kbuild support for applying DT overlays at build time. The first
   user are the DT unittests.

 - Fix kerneldoc formatting and W=1 warnings in drivers/of/

 - Fix handling 64-bit flag on PCI resources

 - Bump dtschema version required to v2021.2.1

 - Enable undocumented compatible checks for dtbs_check. This allows
   tracking of missing binding schemas.

 - DT docs improvements. Regroup the DT docs and add the example schema
   and DT kernel ABI docs to the doc build.

 - Convert Broadcom Bluetooth and video-mux bindings to schema

 - Add QCom sm8250 Venus video codec binding schema

 - Add vendor prefixes for AESOP, YIC System Co., Ltd, and Siliconfile
   Technologies Inc.

 - Cleanup of DT schema type references on common properties and
   standard unit properties

* tag 'devicetree-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (64 commits)
  powerpc: If kexec_build_elf_info() fails return immediately from elf64_load()
  powerpc: Free fdt on error in elf64_load()
  of: overlay: Fix kerneldoc warning in of_overlay_remove()
  of: linux/of.h: fix kernel-doc warnings
  of/pci: Add IORESOURCE_MEM_64 to resource flags for 64-bit memory addresses
  dt-bindings: bcm4329-fmac: add optional brcm,ccode-map
  docs: dt: update writing-schema.rst references
  dt-bindings: media: venus: Add sm8250 dt schema
  of: base: Fix spelling issue with function param 'prop'
  docs: dt: Add DT API documentation
  of: Add missing 'Return' section in kerneldoc comments
  of: Fix kerneldoc output formatting
  docs: dt: Group DT docs into relevant sub-sections
  docs: dt: Make 'Devicetree' wording more consistent
  docs: dt: writing-schema: Include the example schema in the doc build
  docs: dt: writing-schema: Remove spurious indentation
  dt-bindings: Fix reference in submitting-patches.rst to the DT ABI doc
  dt-bindings: ddr: Add optional manufacturer and revision ID to LPDDR3
  dt-bindings: media: video-interfaces: Drop the example
  devicetree: bindings: clock: Minor typo fix in the file armada3700-tbg-clock.txt
  ...
2021-04-28 15:50:24 -07:00
Linus Torvalds
5a69e9bce9 power supply and reset changes for the v5.13 series
battery/charger driver changes:
  * core: provide function stubs if CONFIG_POWER_SUPPLY=n
  * core: reduce loglevel for probe defer info
  * surface-battery: new battery driver for Surface
  * surface-charger: new charger driver for Surface
  * bq27xxx: add bq78z100 support
  * bq27xxx: fix current_now/power_avg for newer chips
  * cw2015: add CHARGE_NOW support
  * ab8500: drop pdata support
  * convert most DT bindings to YAML
  * lot's of minor fixes and cleanups
 
 reset drivers:
  * ltc2952-poweroff: make trigger delay configurable from DT
  * minor fixes and cleanups
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Merge tag 'for-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
 "battery/charger driver changes:
   - core:
      - provide function stubs if CONFIG_POWER_SUPPLY=n
      - reduce loglevel for probe defer info
   - surface:
      - new battery and charger drivers for Surface
   - bq27xxx:
      - add bq78z100 support
      - fix current_now/power_avg for newer chips
   - cw2015:
      - add CHARGE_NOW support
   - ab8500:
      - drop pdata support
   - convert most DT bindings to YAML
   - lots of minor fixes and cleanups

  reset drivers:
   - ltc2952-poweroff:
      - make trigger delay configurable from DT
   - minor fixes and cleanups"

* tag 'for-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (97 commits)
  power: supply: cpcap-battery: fix invalid usage of list cursor
  power: supply: bq256xx: add kerneldoc for structure members
  power: supply: act8945a: correct kerneldoc
  power: supply: max17040: remove unneeded double cast
  power: supply: max17040: handle device_property_read_u8_array() failure
  power: supply: max14577: remove unneeded variable initialization
  power: supply: surface-charger: Make symbol 'surface_ac_pm_ops' static
  power: supply: surface-battery: Make some symbols static
  power: reset: restart-poweroff: Add missing MODULE_DEVICE_TABLE
  power: reset: hisi-reboot: add missing MODULE_DEVICE_TABLE
  power: supply: s3c_adc_battery: fix possible use-after-free in s3c_adc_bat_remove()
  power: supply: generic-adc-battery: fix possible use-after-free in gab_remove()
  power: supply: Add AC driver for Surface Aggregator Module
  power: supply: Add battery driver for Surface Aggregator Module
  power: supply: bq25980: Move props from battery node
  power: supply: core: Use true and false for bool variable
  power: supply: goldfish: Remove the GOLDFISH dependency
  power: reset: ltc2952: make trigger delay configurable
  power: supply: cpcap-charger: Simplify bool conversion
  power: supply: cpcap-charger: Add usleep to cpcap charger to avoid usb plug bounce
  ...
2021-04-28 15:43:58 -07:00
Linus Torvalds
a8b5e037d8 HSI changes for the 5.13 series
* memory leak fix in hsi_add_client_from_dt() error path
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Merge tag 'hsi-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi

Pull HSI update from Sebastian Reichel:

 - memory leak fix in hsi_add_client_from_dt() error path

* tag 'hsi-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
  HSI: core: fix resource leaks in hsi_add_client_from_dt()
2021-04-28 15:39:38 -07:00
Linus Torvalds
625434dafd for-5.13/io_uring-2021-04-27
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Merge tag 'for-5.13/io_uring-2021-04-27' of git://git.kernel.dk/linux-block

Pull io_uring updates from Jens Axboe:

 - Support for multi-shot mode for POLL requests

 - More efficient reference counting. This is shamelessly stolen from
   the mm side. Even though referencing is mostly single/dual user, the
   128 count was retained to keep the code the same. Maybe this
   should/could be made generic at some point.

 - Removal of the need to have a manager thread for each ring. The
   manager threads only job was checking and creating new io-threads as
   needed, instead we handle this from the queue path.

 - Allow SQPOLL without CAP_SYS_ADMIN or CAP_SYS_NICE. Since 5.12, this
   thread is "just" a regular application thread, so no need to restrict
   use of it anymore.

 - Cleanup of how internal async poll data lifetime is managed.

 - Fix for syzbot reported crash on SQPOLL cancelation.

 - Make buffer registration more like file registrations, which includes
   flexibility in avoiding full set unregistration and re-registration.

 - Fix for io-wq affinity setting.

 - Be a bit more defensive in task->pf_io_worker setup.

 - Various SQPOLL fixes.

 - Cleanup of SQPOLL creds handling.

 - Improvements to in-flight request tracking.

 - File registration cleanups.

 - Tons of cleanups and little fixes

* tag 'for-5.13/io_uring-2021-04-27' of git://git.kernel.dk/linux-block: (156 commits)
  io_uring: maintain drain logic for multishot poll requests
  io_uring: Check current->io_uring in io_uring_cancel_sqpoll
  io_uring: fix NULL reg-buffer
  io_uring: simplify SQPOLL cancellations
  io_uring: fix work_exit sqpoll cancellations
  io_uring: Fix uninitialized variable up.resv
  io_uring: fix invalid error check after malloc
  io_uring: io_sq_thread() no longer needs to reset current->pf_io_worker
  kernel: always initialize task->pf_io_worker to NULL
  io_uring: update sq_thread_idle after ctx deleted
  io_uring: add full-fledged dynamic buffers support
  io_uring: implement fixed buffers registration similar to fixed files
  io_uring: prepare fixed rw for dynanic buffers
  io_uring: keep table of pointers to ubufs
  io_uring: add generic rsrc update with tags
  io_uring: add IORING_REGISTER_RSRC
  io_uring: enumerate dynamic resources
  io_uring: add generic path for rsrc update
  io_uring: preparation for rsrc tagging
  io_uring: decouple CQE filling from requests
  ...
2021-04-28 14:56:09 -07:00
Linus Torvalds
c05a182bf4 for-5.13/libata-2021-04-27
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Merge tag 'for-5.13/libata-2021-04-27' of git://git.kernel.dk/linux-block

Pull libata updates from Jens Axboe:
 "Mostly cleanups this time, but also a few additions:

   - kernel-doc cleanups and sanitization (Lee)

   - Spelling fix (Bhaskar)

   - Fix ata_qc_from_tag() return value check in dwc_460ex (Dinghao)

   - Fall-through warning fix (Gustavo)

   - IRQ registration fixes (Sergey)

   - Add AHCI support for Tegra186 (Sowjanya)

   - Add xiling phy support for AHCI (Piyush)

   - SXS disable fix for AHCI for Hisilicon Kunpeng920 (Xingui)

   - pata legacy probe mask support (Maciej)"

* tag 'for-5.13/libata-2021-04-27' of git://git.kernel.dk/linux-block: (54 commits)
  libata: Fix fall-through warnings for Clang
  pata_ipx4xx_cf: Fix unsigned comparison with less than zero
  ata: ahci_tegra: call tegra_powergate_power_off only when PM domain is not present
  ata: ahci_tegra: Add AHCI support for Tegra186
  dt-binding: ata: tegra: Add dt-binding documentation for Tegra186
  dt-bindings: ata: tegra: Convert binding documentation to YAML
  pata_legacy: Add `probe_mask' parameter like with ide-generic
  pata_platform: Document `pio_mask' module parameter
  pata_legacy: Properly document module parameters
  ata: ahci: ceva: Updated code by using dev_err_probe()
  ata: ahci: Disable SXS for Hisilicon Kunpeng920
  ata: libahci_platform: fix IRQ check
  sata_mv: add IRQ checks
  ata: pata_acpi: Fix some incorrect function param descriptions
  ata: libata-acpi: Fix function name and provide description for 'prev_gtf'
  ata: sata_mv: Fix misnaming of 'mv_bmdma_stop()'
  ata: pata_cs5530: Fix misspelling of 'cs5530_init_one()'s 'pdev' param
  ata: pata_legacy: Repair a couple kernel-doc problems
  ata: ata_generic: Fix misspelling of 'ata_generic_init_one()'
  ata: pata_opti: Fix spelling issue of 'val' in 'opti_write_reg()'
  ...
2021-04-28 14:50:20 -07:00
Linus Torvalds
fc05860628 for-5.13/drivers-2021-04-27
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Merge tag 'for-5.13/drivers-2021-04-27' of git://git.kernel.dk/linux-block

Pull block driver updates from Jens Axboe:

 - MD changes via Song:
        - raid5 POWER fix
        - raid1 failure fix
        - UAF fix for md cluster
        - mddev_find_or_alloc() clean up
        - Fix NULL pointer deref with external bitmap
        - Performance improvement for raid10 discard requests
        - Fix missing information of /proc/mdstat

 - rsxx const qualifier removal (Arnd)

 - Expose allocated brd pages (Calvin)

 - rnbd via Gioh Kim:
        - Change maintainer
        - Change domain address of maintainers' email
        - Add polling IO mode and document update
        - Fix memory leak and some bug detected by static code analysis
          tools
        - Code refactoring

 - Series of floppy cleanups/fixes (Denis)

 - s390 dasd fixes (Julian)

 - kerneldoc fixes (Lee)

 - null_blk double free (Lv)

 - null_blk virtual boundary addition (Max)

 - Remove xsysace driver (Michal)

 - umem driver removal (Davidlohr)

 - ataflop fixes (Dan)

 - Revalidate disk removal (Christoph)

 - Bounce buffer cleanups (Christoph)

 - Mark lightnvm as deprecated (Christoph)

 - mtip32xx init cleanups (Shixin)

 - Various fixes (Tian, Gustavo, Coly, Yang, Zhang, Zhiqiang)

* tag 'for-5.13/drivers-2021-04-27' of git://git.kernel.dk/linux-block: (143 commits)
  async_xor: increase src_offs when dropping destination page
  drivers/block/null_blk/main: Fix a double free in null_init.
  md/raid1: properly indicate failure when ending a failed write request
  md-cluster: fix use-after-free issue when removing rdev
  nvme: introduce generic per-namespace chardev
  nvme: cleanup nvme_configure_apst
  nvme: do not try to reconfigure APST when the controller is not live
  nvme: add 'kato' sysfs attribute
  nvme: sanitize KATO setting
  nvmet: avoid queuing keep-alive timer if it is disabled
  brd: expose number of allocated pages in debugfs
  ataflop: fix off by one in ataflop_probe()
  ataflop: potential out of bounds in do_format()
  drbd: Fix fall-through warnings for Clang
  block/rnbd: Use strscpy instead of strlcpy
  block/rnbd-clt-sysfs: Remove copy buffer overlap in rnbd_clt_get_path_name
  block/rnbd-clt: Remove max_segment_size
  block/rnbd-clt: Generate kobject_uevent when the rnbd device state changes
  block/rnbd-srv: Remove unused arguments of rnbd_srv_rdma_ev
  Documentation/ABI/rnbd-clt: Add description for nr_poll_queues
  ...
2021-04-28 14:39:37 -07:00
Linus Torvalds
6c00292113 for-5.13/block-2021-04-27
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Merge tag 'for-5.13/block-2021-04-27' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:
 "Pretty quiet round this time, which is nice. In detail:

   - Series revamping bounce buffer support (Christoph)

   - Dead code removal (Christoph, Bart)

   - Partition iteration revamp, now using xarray (Christoph)

   - Passthrough request scheduler improvements (Lin)

   - Series of BFQ improvements (Paolo)

   - Fix ioprio task iteration (Peter)

   - Various little tweaks and fixes (Tejun, Saravanan, Bhaskar, Max,
     Nikolay)"

* tag 'for-5.13/block-2021-04-27' of git://git.kernel.dk/linux-block: (41 commits)
  blk-iocost: don't ignore vrate_min on QD contention
  blk-mq: Fix spurious debugfs directory creation during initialization
  bfq/mq-deadline: remove redundant check for passthrough request
  blk-mq: bypass IO scheduler's limit_depth for passthrough request
  block: Remove an obsolete comment from sg_io()
  block: move bio_list_copy_data to pktcdvd
  block: remove zero_fill_bio_iter
  block: add queue_to_disk() to get gendisk from request_queue
  block: remove an incorrect check from blk_rq_append_bio
  block: initialize ret in bdev_disk_changed
  block: Fix sys_ioprio_set(.which=IOPRIO_WHO_PGRP) task iteration
  block: remove disk_part_iter
  block: simplify diskstats_show
  block: simplify show_partition
  block: simplify printk_all_partitions
  block: simplify partition_overlaps
  block: simplify partition removal
  block: take bd_mutex around delete_partitions in del_gendisk
  block: refactor blk_drop_partitions
  block: move more syncing and invalidation to delete_partition
  ...
2021-04-28 14:27:12 -07:00
Oleksij Rempel
4a52dd8fef net: selftest: fix build issue if INET is disabled
In case ethernet driver is enabled and INET is disabled, selftest will
fail to build.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Fixes: 3e1e58d64c ("net: add generic selftest support")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210428130947.29649-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-04-28 14:06:45 -07:00
Jiapeng Chong
15c0a64bfc net: netrom: nr_in: Remove redundant assignment to ns
Variable ns is set to 'skb->data[17]' but this value is never read as
it is overwritten or not used later on, hence it is a redundant
assignment and can be removed.

Cleans up the following clang-analyzer warning:

net/netrom/nr_in.c:156:2: warning: Value stored to 'ns' is never read
[clang-analyzer-deadcode.DeadStores].

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/1619603885-115604-1-git-send-email-jiapeng.chong@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-04-28 13:59:08 -07:00
Yang Li
808337bec7 net: tun: Remove redundant assignment to ret
Variable 'ret' is set to zero but this value is never read as it is
overwritten with a new value later on, hence it is a redundant
assignment and can be removed.

Cleans up the following clang-analyzer warning:

drivers/net/tun.c:3008:2: warning: Value stored to 'ret' is never read
[clang-analyzer-deadcode.DeadStores]

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://lore.kernel.org/r/1619603852-114996-1-git-send-email-yang.lee@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-04-28 13:58:58 -07:00
Maxim Kochetkov
65ad85f63b net: phy: marvell: add downshift support for M88E1240
Add downshift support for 88E1240, it uses the same downshift
configuration registers as 88E1011.

Signed-off-by: Maxim Kochetkov <fido_max@inbox.ru>
Link: https://lore.kernel.org/r/20210428095356.621536-1-fido_max@inbox.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-04-28 13:58:11 -07:00
Colin Ian King
12c2bb96c3 net: dsa: ksz: Make reg_mib_cnt a u8 as it never exceeds 255
Currently the for-loop in ksz8_port_init_cnt is causing a static
analysis infinite loop warning with the comparison of
mib->cnt_ptr < dev->reg_mib_cnt. This occurs because mib->cnt_ptr
is a u8 and dev->reg_mib_cnt is an int and the analyzer determines
that mib->cnt_ptr potentially can wrap around to zero if the value
in dev->reg_mib_cnt is > 255. However, this value is never this
large, it is always less than 256 so make reg_mib_cnt a u8.

Addresses-Coverity: ("Infinite loop")
Fixes: e66f840c08 ("net: dsa: ksz: Add Microchip KSZ8795 DSA driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210428120010.337959-1-colin.king@canonical.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-04-28 13:56:27 -07:00
Roi Dayan
9be02dd385 net/sched: act_ct: Remove redundant ct get and check
The assignment is not being used and redundant.
The check for null is redundant as nf_conntrack_put() also
checks this.

Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Paul Blakey <paulb@nvidia.com>
Link: https://lore.kernel.org/r/20210428060532.3330974-1-roid@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-04-28 13:51:18 -07:00
Andreas Roeseler
e542d29ca8 icmp: standardize naming of RFC 8335 PROBE constants
The current definitions of constants for PROBE, currently defined only
in the net-next kernel branch, are inconsistent, with
some beginning with ICMP and others with simply EXT. This patch
attempts to standardize the naming conventions of the constants for
PROBE before their release into a stable Kernel, and to update the
relevant definitions in net/ipv4/icmp.c.

Similarly, the definitions for the code field (previously
ICMP_EXT_MAL_QUERY, etc) use the same prefixes as the type field. This
patch adds _CODE_ to the prefix to clarify the distinction of these
constants.

Signed-off-by: Andreas Roeseler <andreas.a.roeseler@gmail.com>
Acked-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20210427153635.2591-1-andreas.a.roeseler@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-04-28 13:42:23 -07:00
Linus Torvalds
16b3d0cf5b Scheduler updates for this cycle are:
- Clean up SCHED_DEBUG: move the decades old mess of sysctl, procfs and debugfs interfaces
    to a unified debugfs interface.
 
  - Signals: Allow caching one sigqueue object per task, to improve performance & latencies.
 
  - Improve newidle_balance() irq-off latencies on systems with a large number of CPU cgroups.
 
  - Improve energy-aware scheduling
 
  - Improve the PELT metrics for certain workloads
 
  - Reintroduce select_idle_smt() to improve load-balancing locality - but without the previous
    regressions
 
  - Add 'scheduler latency debugging': warn after long periods of pending need_resched. This
    is an opt-in feature that requires the enabling of the LATENCY_WARN scheduler feature,
    or the use of the resched_latency_warn_ms=xx boot parameter.
 
  - CPU hotplug fixes for HP-rollback, and for the 'fail' interface. Fix remaining
    balance_push() vs. hotplug holes/races
 
  - PSI fixes, plus allow /proc/pressure/ files to be written by CAP_SYS_RESOURCE tasks as well
 
  - Fix/improve various load-balancing corner cases vs. capacity margins
 
  - Fix sched topology on systems with NUMA diameter of 3 or above
 
  - Fix PF_KTHREAD vs to_kthread() race
 
  - Minor rseq optimizations
 
  - Misc cleanups, optimizations, fixes and smaller updates
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:

 - Clean up SCHED_DEBUG: move the decades old mess of sysctl, procfs and
   debugfs interfaces to a unified debugfs interface.

 - Signals: Allow caching one sigqueue object per task, to improve
   performance & latencies.

 - Improve newidle_balance() irq-off latencies on systems with a large
   number of CPU cgroups.

 - Improve energy-aware scheduling

 - Improve the PELT metrics for certain workloads

 - Reintroduce select_idle_smt() to improve load-balancing locality -
   but without the previous regressions

 - Add 'scheduler latency debugging': warn after long periods of pending
   need_resched. This is an opt-in feature that requires the enabling of
   the LATENCY_WARN scheduler feature, or the use of the
   resched_latency_warn_ms=xx boot parameter.

 - CPU hotplug fixes for HP-rollback, and for the 'fail' interface. Fix
   remaining balance_push() vs. hotplug holes/races

 - PSI fixes, plus allow /proc/pressure/ files to be written by
   CAP_SYS_RESOURCE tasks as well

 - Fix/improve various load-balancing corner cases vs. capacity margins

 - Fix sched topology on systems with NUMA diameter of 3 or above

 - Fix PF_KTHREAD vs to_kthread() race

 - Minor rseq optimizations

 - Misc cleanups, optimizations, fixes and smaller updates

* tag 'sched-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (61 commits)
  cpumask/hotplug: Fix cpu_dying() state tracking
  kthread: Fix PF_KTHREAD vs to_kthread() race
  sched/debug: Fix cgroup_path[] serialization
  sched,psi: Handle potential task count underflow bugs more gracefully
  sched: Warn on long periods of pending need_resched
  sched/fair: Move update_nohz_stats() to the CONFIG_NO_HZ_COMMON block to simplify the code & fix an unused function warning
  sched/debug: Rename the sched_debug parameter to sched_verbose
  sched,fair: Alternative sched_slice()
  sched: Move /proc/sched_debug to debugfs
  sched,debug: Convert sysctl sched_domains to debugfs
  debugfs: Implement debugfs_create_str()
  sched,preempt: Move preempt_dynamic to debug.c
  sched: Move SCHED_DEBUG sysctl to debugfs
  sched: Don't make LATENCYTOP select SCHED_DEBUG
  sched: Remove sched_schedstats sysctl out from under SCHED_DEBUG
  sched/numa: Allow runtime enabling/disabling of NUMA balance without SCHED_DEBUG
  sched: Use cpu_dying() to fix balance_push vs hotplug-rollback
  cpumask: Introduce DYING mask
  cpumask: Make cpu_{online,possible,present,active}() inline
  rseq: Optimise rseq_get_rseq_cs() and clear_rseq_cs()
  ...
2021-04-28 13:33:57 -07:00
Jonathan Marek
02ded1314a drm/msm: fix minor version to indicate MSM_PARAM_SUSPENDS support
Increase the minor version to indicate that MSM_PARAM_SUSPENDS is supported.

Fixes: 3ab1c5cc39 ("drm/msm: Add param for userspace to query suspend count")
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Link: https://lore.kernel.org/r/20210423190420.25217-1-jonathan@marek.ca
Signed-off-by: Rob Clark <robdclark@chromium.org>
2021-04-28 13:08:03 -07:00
Linus Torvalds
42dec9a936 Perf events changes in this cycle were:
- Improve Intel uncore PMU support:
 
      - Parse uncore 'discovery tables' - a new hardware capability enumeration method
        introduced on the latest Intel platforms. This table is in a well-defined PCI
        namespace location and is read via MMIO. It is organized in an rbtree.
 
        These uncore tables will allow the discovery of standard counter blocks, but
        fancier counters still need to be enumerated explicitly.
 
      - Add Alder Lake support
 
      - Improve IIO stacks to PMON mapping support on Skylake servers
 
  - Add Intel Alder Lake PMU support - which requires the introduction of 'hybrid' CPUs
    and PMUs. Alder Lake is a mix of Golden Cove ('big') and Gracemont ('small' - Atom derived)
    cores.
 
    The CPU-side feature set is entirely symmetrical - but on the PMU side there's
    core type dependent PMU functionality.
 
  - Reduce data loss with CPU level hardware tracing on Intel PT / AUX profiling, by
    fixing the AUX allocation watermark logic.
 
  - Improve ring buffer allocation on NUMA systems
 
  - Put 'struct perf_event' into their separate kmem_cache pool
 
  - Add support for synchronous signals for select perf events. The immediate motivation
    is to support low-overhead sampling-based race detection for user-space code. The
    feature consists of the following main changes:
 
     - Add thread-only event inheritance via perf_event_attr::inherit_thread, which limits
       inheritance of events to CLONE_THREAD.
 
     - Add the ability for events to not leak through exec(), via perf_event_attr::remove_on_exec.
 
     - Allow the generation of SIGTRAP via perf_event_attr::sigtrap, extend siginfo with an u64
       ::si_perf, and add the breakpoint information to ::si_addr and ::si_perf if the event is
       PERF_TYPE_BREAKPOINT.
 
    The siginfo support is adequate for breakpoints right now - but the new field can be used
    to introduce support for other types of metadata passed over siginfo as well.
 
  - Misc fixes, cleanups and smaller updates.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf event updates from Ingo Molnar:

 - Improve Intel uncore PMU support:

     - Parse uncore 'discovery tables' - a new hardware capability
       enumeration method introduced on the latest Intel platforms. This
       table is in a well-defined PCI namespace location and is read via
       MMIO. It is organized in an rbtree.

       These uncore tables will allow the discovery of standard counter
       blocks, but fancier counters still need to be enumerated
       explicitly.

     - Add Alder Lake support

     - Improve IIO stacks to PMON mapping support on Skylake servers

 - Add Intel Alder Lake PMU support - which requires the introduction of
   'hybrid' CPUs and PMUs. Alder Lake is a mix of Golden Cove ('big')
   and Gracemont ('small' - Atom derived) cores.

   The CPU-side feature set is entirely symmetrical - but on the PMU
   side there's core type dependent PMU functionality.

 - Reduce data loss with CPU level hardware tracing on Intel PT / AUX
   profiling, by fixing the AUX allocation watermark logic.

 - Improve ring buffer allocation on NUMA systems

 - Put 'struct perf_event' into their separate kmem_cache pool

 - Add support for synchronous signals for select perf events. The
   immediate motivation is to support low-overhead sampling-based race
   detection for user-space code. The feature consists of the following
   main changes:

     - Add thread-only event inheritance via
       perf_event_attr::inherit_thread, which limits inheritance of
       events to CLONE_THREAD.

     - Add the ability for events to not leak through exec(), via
       perf_event_attr::remove_on_exec.

     - Allow the generation of SIGTRAP via perf_event_attr::sigtrap,
       extend siginfo with an u64 ::si_perf, and add the breakpoint
       information to ::si_addr and ::si_perf if the event is
       PERF_TYPE_BREAKPOINT.

   The siginfo support is adequate for breakpoints right now - but the
   new field can be used to introduce support for other types of
   metadata passed over siginfo as well.

 - Misc fixes, cleanups and smaller updates.

* tag 'perf-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits)
  signal, perf: Add missing TRAP_PERF case in siginfo_layout()
  signal, perf: Fix siginfo_t by avoiding u64 on 32-bit architectures
  perf/x86: Allow for 8<num_fixed_counters<16
  perf/x86/rapl: Add support for Intel Alder Lake
  perf/x86/cstate: Add Alder Lake CPU support
  perf/x86/msr: Add Alder Lake CPU support
  perf/x86/intel/uncore: Add Alder Lake support
  perf: Extend PERF_TYPE_HARDWARE and PERF_TYPE_HW_CACHE
  perf/x86/intel: Add Alder Lake Hybrid support
  perf/x86: Support filter_match callback
  perf/x86/intel: Add attr_update for Hybrid PMUs
  perf/x86: Add structures for the attributes of Hybrid PMUs
  perf/x86: Register hybrid PMUs
  perf/x86: Factor out x86_pmu_show_pmu_cap
  perf/x86: Remove temporary pmu assignment in event_init
  perf/x86/intel: Factor out intel_pmu_check_extra_regs
  perf/x86/intel: Factor out intel_pmu_check_event_constraints
  perf/x86/intel: Factor out intel_pmu_check_num_counters
  perf/x86: Hybrid PMU support for extra_regs
  perf/x86: Hybrid PMU support for event constraints
  ...
2021-04-28 13:03:44 -07:00
Linus Torvalds
03b2cd72aa Objtool updates in this cycle were:
- Standardize the crypto asm code so that it looks like compiler-generated
    code to objtool - so that it can understand it. This enables unwinding
    from crypto asm code - and also fixes the last known remaining objtool
    warnings for LTO and more.
 
  - x86 decoder fixes: clean up and fix the decoder, and also extend it a bit
 
  - Misc fixes and cleanups
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool updates from Ingo Molnar:

 - Standardize the crypto asm code so that it looks like compiler-
   generated code to objtool - so that it can understand it. This
   enables unwinding from crypto asm code - and also fixes the last
   known remaining objtool warnings for LTO and more.

 - x86 decoder fixes: clean up and fix the decoder, and also extend it a
   bit

 - Misc fixes and cleanups

* tag 'objtool-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
  x86/crypto: Enable objtool in crypto code
  x86/crypto/sha512-ssse3: Standardize stack alignment prologue
  x86/crypto/sha512-avx2: Standardize stack alignment prologue
  x86/crypto/sha512-avx: Standardize stack alignment prologue
  x86/crypto/sha256-avx2: Standardize stack alignment prologue
  x86/crypto/sha1_avx2: Standardize stack alignment prologue
  x86/crypto/sha_ni: Standardize stack alignment prologue
  x86/crypto/crc32c-pcl-intel: Standardize jump table
  x86/crypto/camellia-aesni-avx2: Unconditionally allocate stack buffer
  x86/crypto/aesni-intel_avx: Standardize stack alignment prologue
  x86/crypto/aesni-intel_avx: Fix register usage comments
  x86/crypto/aesni-intel_avx: Remove unused macros
  objtool: Support asm jump tables
  objtool: Parse options from OBJTOOL_ARGS
  objtool: Collate parse_options() users
  objtool: Add --backup
  objtool,x86: More ModRM sugar
  objtool,x86: Rewrite ADD/SUB/AND
  objtool,x86: Support %riz encodings
  objtool,x86: Simplify register decode
  ...
2021-04-28 12:53:24 -07:00
Linus Torvalds
0ff0edb550 Locking changes for this cycle were:
- rtmutex cleanup & spring cleaning pass that removes ~400 lines of code
  - Futex simplifications & cleanups
  - Add debugging to the CSD code, to help track down a tenacious race (or hw problem)
  - Add lockdep_assert_not_held(), to allow code to require a lock to not be held,
    and propagate this into the ath10k driver
  - Misc LKMM documentation updates
  - Misc KCSAN updates: cleanups & documentation updates
  - Misc fixes and cleanups
  - Fix locktorture bugs with ww_mutexes
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking updates from Ingo Molnar:

 - rtmutex cleanup & spring cleaning pass that removes ~400 lines of
   code

 - Futex simplifications & cleanups

 - Add debugging to the CSD code, to help track down a tenacious race
   (or hw problem)

 - Add lockdep_assert_not_held(), to allow code to require a lock to not
   be held, and propagate this into the ath10k driver

 - Misc LKMM documentation updates

 - Misc KCSAN updates: cleanups & documentation updates

 - Misc fixes and cleanups

 - Fix locktorture bugs with ww_mutexes

* tag 'locking-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
  kcsan: Fix printk format string
  static_call: Relax static_call_update() function argument type
  static_call: Fix unused variable warn w/o MODULE
  locking/rtmutex: Clean up signal handling in __rt_mutex_slowlock()
  locking/rtmutex: Restrict the trylock WARN_ON() to debug
  locking/rtmutex: Fix misleading comment in rt_mutex_postunlock()
  locking/rtmutex: Consolidate the fast/slowpath invocation
  locking/rtmutex: Make text section and inlining consistent
  locking/rtmutex: Move debug functions as inlines into common header
  locking/rtmutex: Decrapify __rt_mutex_init()
  locking/rtmutex: Remove pointless CONFIG_RT_MUTEXES=n stubs
  locking/rtmutex: Inline chainwalk depth check
  locking/rtmutex: Move rt_mutex_debug_task_free() to rtmutex.c
  locking/rtmutex: Remove empty and unused debug stubs
  locking/rtmutex: Consolidate rt_mutex_init()
  locking/rtmutex: Remove output from deadlock detector
  locking/rtmutex: Remove rtmutex deadlock tester leftovers
  locking/rtmutex: Remove rt_mutex_timed_lock()
  MAINTAINERS: Add myself as futex reviewer
  locking/mutex: Remove repeated declaration
  ...
2021-04-28 12:37:53 -07:00
Linus Torvalds
9a45da9270 RCU changes for this cycle were:
- Bitmap support for "N" as alias for last bit
  - kvfree_rcu updates
  - mm_dump_obj() updates.  (One of these is to mm, but was suggested by Andrew Morton.)
  - RCU callback offloading update
  - Polling RCU grace-period interfaces
  - Realtime-related RCU updates
  - Tasks-RCU updates
  - Torture-test updates
  - Torture-test scripting updates
  - Miscellaneous fixes
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'core-rcu-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull RCU updates from Ingo Molnar:

 - Support for "N" as alias for last bit in bitmap parsing library (eg
   using syntax like "nohz_full=2-N")

 - kvfree_rcu updates

 - mm_dump_obj() updates. (One of these is to mm, but was suggested by
   Andrew Morton.)

 - RCU callback offloading update

 - Polling RCU grace-period interfaces

 - Realtime-related RCU updates

 - Tasks-RCU updates

 - Torture-test updates

 - Torture-test scripting updates

 - Miscellaneous fixes

* tag 'core-rcu-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (77 commits)
  rcutorture: Test start_poll_synchronize_rcu() and poll_state_synchronize_rcu()
  rcu: Provide polling interfaces for Tiny RCU grace periods
  torture: Fix kvm.sh --datestamp regex check
  torture: Consolidate qemu-cmd duration editing into kvm-transform.sh
  torture: Print proper vmlinux path for kvm-again.sh runs
  torture: Make TORTURE_TRUST_MAKE available in kvm-again.sh environment
  torture: Make kvm-transform.sh update jitter commands
  torture: Add --duration argument to kvm-again.sh
  torture: Add kvm-again.sh to rerun a previous torture-test
  torture: Create a "batches" file for build reuse
  torture: De-capitalize TORTURE_SUITE
  torture: Make upper-case-only no-dot no-slash scenario names official
  torture: Rename SRCU-t and SRCU-u to avoid lowercase characters
  torture: Remove no-mpstat error message
  torture: Record kvm-test-1-run.sh and kvm-test-1-run-qemu.sh PIDs
  torture: Record jitter start/stop commands
  torture: Extract kvm-test-1-run-qemu.sh from kvm-test-1-run.sh
  torture: Record TORTURE_KCONFIG_GDB_ARG in qemu-cmd
  torture: Abstract jitter.sh start/stop into scripts
  rcu: Provide polling interfaces for Tree RCU grace periods
  ...
2021-04-28 12:00:13 -07:00
Jakub Kicinski
f89271f09f Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2021-04-28

The main changes are:

1) Add link detach and following re-attach for trampolines, from Jiri Olsa.

2) Use kernel's "binary printf" lib for formatted output BPF helpers (which
   avoids the needs for variadic argument handling), from Florent Revest.

3) Fix verifier 64 to 32 bit min/max bound propagation, from Daniel Borkmann.

4) Convert cpumap to use netif_receive_skb_list(), from Lorenzo Bianconi.

5) Add generic batched-ops support to percpu array map, from Pedro Tammela.

6) Various CO-RE relocation BPF selftests fixes, from Andrii Nakryiko.

7) Misc doc rst fixes, from Hengqi Chen.

* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next:
  bpf, selftests: Update array map tests for per-cpu batched ops
  bpf: Add batched ops support for percpu array
  bpf: Implement formatted output helpers with bstr_printf
  seq_file: Add a seq_bprintf function
  bpf, docs: Fix literal block for example code
  bpf, cpumap: Bulk skb using netif_receive_skb_list
  bpf: Fix propagation of 32 bit unsigned bounds from 64 bit bounds
  bpf: Lock bpf_trace_printk's tmp buf before it is written to
  selftests/bpf: Fix core_reloc test runner
  selftests/bpf: Fix field existence CO-RE reloc tests
  selftests/bpf: Fix BPF_CORE_READ_BITFIELD() macro
  libbpf: Support BTF_KIND_FLOAT during type compatibility checks in CO-RE
  selftests/bpf: Add remaining ASSERT_xxx() variants
  selftests/bpf: Use ASSERT macros in lsm test
  selftests/bpf: Test that module can't be unloaded with attached trampoline
  selftests/bpf: Add re-attach test to lsm test
  selftests/bpf: Add re-attach test to fexit_test
  selftests/bpf: Add re-attach test to fentry_test
  bpf: Allow trampoline re-attach for tracing and lsm programs
====================

Link: https://lore.kernel.org/r/20210427233740.22238-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-04-28 11:59:31 -07:00
Filipe Manana
f9baa501b4 btrfs: fix deadlock when cloning inline extents and using qgroups
There are a few exceptional cases where cloning an inline extent needs to
copy the inline extent data into a page of the destination inode.

When this happens, we end up starting a transaction while having a dirty
page for the destination inode and while having the range locked in the
destination's inode iotree too. Because when reserving metadata space
for a transaction we may need to flush existing delalloc in case there is
not enough free space, we have a mechanism in place to prevent a deadlock,
which was introduced in commit 3d45f221ce ("btrfs: fix deadlock when
cloning inline extent and low on free metadata space").

However when using qgroups, a transaction also reserves metadata qgroup
space, which can also result in flushing delalloc in case there is not
enough available space at the moment. When this happens we deadlock, since
flushing delalloc requires locking the file range in the inode's iotree
and the range was already locked at the very beginning of the clone
operation, before attempting to start the transaction.

When this issue happens, stack traces like the following are reported:

  [72747.556262] task:kworker/u81:9   state:D stack:    0 pid:  225 ppid:     2 flags:0x00004000
  [72747.556268] Workqueue: writeback wb_workfn (flush-btrfs-1142)
  [72747.556271] Call Trace:
  [72747.556273]  __schedule+0x296/0x760
  [72747.556277]  schedule+0x3c/0xa0
  [72747.556279]  io_schedule+0x12/0x40
  [72747.556284]  __lock_page+0x13c/0x280
  [72747.556287]  ? generic_file_readonly_mmap+0x70/0x70
  [72747.556325]  extent_write_cache_pages+0x22a/0x440 [btrfs]
  [72747.556331]  ? __set_page_dirty_nobuffers+0xe7/0x160
  [72747.556358]  ? set_extent_buffer_dirty+0x5e/0x80 [btrfs]
  [72747.556362]  ? update_group_capacity+0x25/0x210
  [72747.556366]  ? cpumask_next_and+0x1a/0x20
  [72747.556391]  extent_writepages+0x44/0xa0 [btrfs]
  [72747.556394]  do_writepages+0x41/0xd0
  [72747.556398]  __writeback_single_inode+0x39/0x2a0
  [72747.556403]  writeback_sb_inodes+0x1ea/0x440
  [72747.556407]  __writeback_inodes_wb+0x5f/0xc0
  [72747.556410]  wb_writeback+0x235/0x2b0
  [72747.556414]  ? get_nr_inodes+0x35/0x50
  [72747.556417]  wb_workfn+0x354/0x490
  [72747.556420]  ? newidle_balance+0x2c5/0x3e0
  [72747.556424]  process_one_work+0x1aa/0x340
  [72747.556426]  worker_thread+0x30/0x390
  [72747.556429]  ? create_worker+0x1a0/0x1a0
  [72747.556432]  kthread+0x116/0x130
  [72747.556435]  ? kthread_park+0x80/0x80
  [72747.556438]  ret_from_fork+0x1f/0x30

  [72747.566958] Workqueue: btrfs-flush_delalloc btrfs_work_helper [btrfs]
  [72747.566961] Call Trace:
  [72747.566964]  __schedule+0x296/0x760
  [72747.566968]  ? finish_wait+0x80/0x80
  [72747.566970]  schedule+0x3c/0xa0
  [72747.566995]  wait_extent_bit.constprop.68+0x13b/0x1c0 [btrfs]
  [72747.566999]  ? finish_wait+0x80/0x80
  [72747.567024]  lock_extent_bits+0x37/0x90 [btrfs]
  [72747.567047]  btrfs_invalidatepage+0x299/0x2c0 [btrfs]
  [72747.567051]  ? find_get_pages_range_tag+0x2cd/0x380
  [72747.567076]  __extent_writepage+0x203/0x320 [btrfs]
  [72747.567102]  extent_write_cache_pages+0x2bb/0x440 [btrfs]
  [72747.567106]  ? update_load_avg+0x7e/0x5f0
  [72747.567109]  ? enqueue_entity+0xf4/0x6f0
  [72747.567134]  extent_writepages+0x44/0xa0 [btrfs]
  [72747.567137]  ? enqueue_task_fair+0x93/0x6f0
  [72747.567140]  do_writepages+0x41/0xd0
  [72747.567144]  __filemap_fdatawrite_range+0xc7/0x100
  [72747.567167]  btrfs_run_delalloc_work+0x17/0x40 [btrfs]
  [72747.567195]  btrfs_work_helper+0xc2/0x300 [btrfs]
  [72747.567200]  process_one_work+0x1aa/0x340
  [72747.567202]  worker_thread+0x30/0x390
  [72747.567205]  ? create_worker+0x1a0/0x1a0
  [72747.567208]  kthread+0x116/0x130
  [72747.567211]  ? kthread_park+0x80/0x80
  [72747.567214]  ret_from_fork+0x1f/0x30

  [72747.569686] task:fsstress        state:D stack:    0 pid:841421 ppid:841417 flags:0x00000000
  [72747.569689] Call Trace:
  [72747.569691]  __schedule+0x296/0x760
  [72747.569694]  schedule+0x3c/0xa0
  [72747.569721]  try_flush_qgroup+0x95/0x140 [btrfs]
  [72747.569725]  ? finish_wait+0x80/0x80
  [72747.569753]  btrfs_qgroup_reserve_data+0x34/0x50 [btrfs]
  [72747.569781]  btrfs_check_data_free_space+0x5f/0xa0 [btrfs]
  [72747.569804]  btrfs_buffered_write+0x1f7/0x7f0 [btrfs]
  [72747.569810]  ? path_lookupat.isra.48+0x97/0x140
  [72747.569833]  btrfs_file_write_iter+0x81/0x410 [btrfs]
  [72747.569836]  ? __kmalloc+0x16a/0x2c0
  [72747.569839]  do_iter_readv_writev+0x160/0x1c0
  [72747.569843]  do_iter_write+0x80/0x1b0
  [72747.569847]  vfs_writev+0x84/0x140
  [72747.569869]  ? btrfs_file_llseek+0x38/0x270 [btrfs]
  [72747.569873]  do_writev+0x65/0x100
  [72747.569876]  do_syscall_64+0x33/0x40
  [72747.569879]  entry_SYSCALL_64_after_hwframe+0x44/0xa9

  [72747.569899] task:fsstress        state:D stack:    0 pid:841424 ppid:841417 flags:0x00004000
  [72747.569903] Call Trace:
  [72747.569906]  __schedule+0x296/0x760
  [72747.569909]  schedule+0x3c/0xa0
  [72747.569936]  try_flush_qgroup+0x95/0x140 [btrfs]
  [72747.569940]  ? finish_wait+0x80/0x80
  [72747.569967]  __btrfs_qgroup_reserve_meta+0x36/0x50 [btrfs]
  [72747.569989]  start_transaction+0x279/0x580 [btrfs]
  [72747.570014]  clone_copy_inline_extent+0x332/0x490 [btrfs]
  [72747.570041]  btrfs_clone+0x5b7/0x7a0 [btrfs]
  [72747.570068]  ? lock_extent_bits+0x64/0x90 [btrfs]
  [72747.570095]  btrfs_clone_files+0xfc/0x150 [btrfs]
  [72747.570122]  btrfs_remap_file_range+0x3d8/0x4a0 [btrfs]
  [72747.570126]  do_clone_file_range+0xed/0x200
  [72747.570131]  vfs_clone_file_range+0x37/0x110
  [72747.570134]  ioctl_file_clone+0x7d/0xb0
  [72747.570137]  do_vfs_ioctl+0x138/0x630
  [72747.570140]  __x64_sys_ioctl+0x62/0xc0
  [72747.570143]  do_syscall_64+0x33/0x40
  [72747.570146]  entry_SYSCALL_64_after_hwframe+0x44/0xa9

So fix this by skipping the flush of delalloc for an inode that is
flagged with BTRFS_INODE_NO_DELALLOC_FLUSH, meaning it is currently under
such a special case of cloning an inline extent, when flushing delalloc
during qgroup metadata reservation.

The special cases for cloning inline extents were added in kernel 5.7 by
by commit 05a5a7621c ("Btrfs: implement full reflink support for
inline extents"), while having qgroup metadata space reservation flushing
delalloc when low on space was added in kernel 5.9 by commit
c53e965360 ("btrfs: qgroup: try to flush qgroup space when we get
-EDQUOT"). So use a "Fixes:" tag for the later commit to ease stable
kernel backports.

Reported-by: Wang Yugui <wangyugui@e16-tech.com>
Link: https://lore.kernel.org/linux-btrfs/20210421083137.31E3.409509F4@e16-tech.com/
Fixes: c53e965360 ("btrfs: qgroup: try to flush qgroup space when we get -EDQUOT")
CC: stable@vger.kernel.org # 5.9+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2021-04-28 20:09:47 +02:00