| Age | Commit message (Collapse) | Author |
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Make sure that the local variable rzone in dmz_do_reclaim() is always
initialized before being used for printing debug messages.
Fixes: f97809aec589 ("dm zoned: per-device reclaim")
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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When a register patch is registered the reg_sequence is copied but the
memory allocated is never freed. Add a kfree in regmap_exit to clean it
up.
Fixes: 22f0d90a3482 ("regmap: Support register patch sets")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20200617152129.19655-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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On 32-bit ARM, we may boot at HYP mode, or with the MMU and caches off
(or both), even though the EFI spec does not actually support this.
While booting at HYP mode is something we might tolerate, fiddling
with the caches is a more serious issue, as disabling the caches is
tricky to do safely from C code, and running without the Dcache makes
it impossible to support unaligned memory accesses, which is another
explicit requirement imposed by the EFI spec.
So take note of the CPU mode and MMU state in the EFI stub diagnostic
output so that we can easily diagnose any issues that may arise from
this. E.g.,
EFI stub: Entering in SVC mode with MMU enabled
Also, capture the CPSR and SCTLR system register values at EFI stub
entry, and after ExitBootServices() returns, and check whether the
MMU and Dcache were disabled at any point. If this is the case, a
diagnostic message like the following will be emitted:
efi: [Firmware Bug]: EFI stub was entered with MMU and Dcache disabled, please fix your firmware!
efi: CPSR at EFI stub entry : 0x600001d3
efi: SCTLR at EFI stub entry : 0x00c51838
efi: CPSR after ExitBootServices() : 0x600001d3
efi: SCTLR after ExitBootServices(): 0x00c50838
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
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On arm64, the EFI stub is built into the kernel proper, and so the stub
can refer to its symbols directly. Therefore, the practice of using EFI
configuration tables to pass information between them is never needed,
so we can omit any code consuming such tables when building for arm64.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
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In case of -EPROBE_DEFER, stm32_qspi_release() was called
in any case which unregistered driver from pm_runtime framework
even if it has not been registered yet to it. This leads to:
stm32-qspi 58003000.spi: can't setup spi0.0, status -13
spi_master spi0: spi_device register error /soc/spi@58003000/mx66l51235l@0
spi_master spi0: Failed to create SPI device for /soc/spi@58003000/mx66l51235l@0
stm32-qspi 58003000.spi: can't setup spi0.1, status -13
spi_master spi0: spi_device register error /soc/spi@58003000/mx66l51235l@1
spi_master spi0: Failed to create SPI device for /soc/spi@58003000/mx66l51235l@1
On v5.7 kernel,this issue was not "visible", qspi driver was probed
successfully.
Fixes: 9d282c17b023 ("spi: stm32-qspi: Add pm_runtime support")
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Link: https://lore.kernel.org/r/20200616113035.4514-1-patrice.chotard@st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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The MFD part is merged into v5.8-rc1, thus remove BROKEN dependency.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20200616135030.1163660-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Linux 5.8-rc1
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time64_t is 64-bit width type, we are not supposed to supply lesser ones
as in the case of rpi_firmware_print_firmware_revision() after the commit
4a60f58ee002 ("ARM: bcm2835: Switch to use %ptT"). Use temporary variable
of time64_t type to correctly handle lesser types.
Fixes: 4a60f58ee002 ("ARM: bcm2835: Switch to use %ptT")
Reported-by: Stefan Wahren <wahrenst@gmx.net>
Reported-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Revieved-by: Petr Mladek <pmladek@suse.com>
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Link: https://lore.kernel.org/r/20200616163139.4229-1-andriy.shevchenko@linux.intel.com
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GFP_KERNEL flag specifies a normal kernel allocation in which executing
in process context without any locks and can sleep.
mmio_diff takes sometime to finish all the diff compare and it has
locks, continue using GFP_KERNEL will output below trace if LOCKDEP
enabled.
Use GFP_ATOMIC instead.
V2: Rebase.
=====================================================
WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected
5.7.0-rc2 #400 Not tainted
-----------------------------------------------------
is trying to acquire:
ffffffffb47bea20 (fs_reclaim){+.+.}-{0:0}, at: fs_reclaim_acquire.part.0+0x0/0x30
and this task is already holding:
ffff88845b85cc90 (&gvt->scheduler.mmio_context_lock){+.-.}-{2:2}, at: vgpu_mmio_diff_show+0xcf/0x2e0
which would create a new lock dependency:
(&gvt->scheduler.mmio_context_lock){+.-.}-{2:2} -> (fs_reclaim){+.+.}-{0:0}
but this new dependency connects a SOFTIRQ-irq-safe lock:
(&gvt->scheduler.mmio_context_lock){+.-.}-{2:2}
... which became SOFTIRQ-irq-safe at:
lock_acquire+0x175/0x4e0
_raw_spin_lock_irqsave+0x2b/0x40
shadow_context_status_change+0xfe/0x2f0
notifier_call_chain+0x6a/0xa0
__atomic_notifier_call_chain+0x5f/0xf0
execlists_schedule_out+0x42a/0x820
process_csb+0xe7/0x3e0
execlists_submission_tasklet+0x5c/0x1d0
tasklet_action_common.isra.0+0xeb/0x260
__do_softirq+0x11d/0x56f
irq_exit+0xf6/0x100
do_IRQ+0x7f/0x160
ret_from_intr+0x0/0x2a
cpuidle_enter_state+0xcd/0x5b0
cpuidle_enter+0x37/0x60
do_idle+0x337/0x3f0
cpu_startup_entry+0x14/0x20
start_kernel+0x58b/0x5c5
secondary_startup_64+0xa4/0xb0
to a SOFTIRQ-irq-unsafe lock:
(fs_reclaim){+.+.}-{0:0}
... which became SOFTIRQ-irq-unsafe at:
...
lock_acquire+0x175/0x4e0
fs_reclaim_acquire.part.0+0x20/0x30
kmem_cache_alloc_node_trace+0x2e/0x290
alloc_worker+0x2b/0xb0
init_rescuer.part.0+0x17/0xe0
workqueue_init+0x293/0x3bb
kernel_init_freeable+0x149/0x325
kernel_init+0x8/0x116
ret_from_fork+0x3a/0x50
other info that might help us debug this:
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(fs_reclaim);
local_irq_disable();
lock(&gvt->scheduler.mmio_context_lock);
lock(fs_reclaim);
<Interrupt>
lock(&gvt->scheduler.mmio_context_lock);
*** DEADLOCK ***
3 locks held by cat/1439:
#0: ffff888444a23698 (&p->lock){+.+.}-{3:3}, at: seq_read+0x49/0x680
#1: ffff88845b858068 (&gvt->lock){+.+.}-{3:3}, at: vgpu_mmio_diff_show+0xc7/0x2e0
#2: ffff88845b85cc90 (&gvt->scheduler.mmio_context_lock){+.-.}-{2:2}, at: vgpu_mmio_diff_show+0xcf/0x2e0
the dependencies between SOFTIRQ-irq-safe lock and the holding lock:
-> (&gvt->scheduler.mmio_context_lock){+.-.}-{2:2} ops: 31 {
HARDIRQ-ON-W at:
lock_acquire+0x175/0x4e0
_raw_spin_lock_bh+0x2f/0x40
vgpu_mmio_diff_show+0xcf/0x2e0
seq_read+0x242/0x680
full_proxy_read+0x95/0xc0
vfs_read+0xc2/0x1b0
ksys_read+0xc4/0x160
do_syscall_64+0x63/0x290
entry_SYSCALL_64_after_hwframe+0x49/0xb3
IN-SOFTIRQ-W at:
lock_acquire+0x175/0x4e0
_raw_spin_lock_irqsave+0x2b/0x40
shadow_context_status_change+0xfe/0x2f0
notifier_call_chain+0x6a/0xa0
__atomic_notifier_call_chain+0x5f/0xf0
execlists_schedule_out+0x42a/0x820
process_csb+0xe7/0x3e0
execlists_submission_tasklet+0x5c/0x1d0
tasklet_action_common.isra.0+0xeb/0x260
__do_softirq+0x11d/0x56f
irq_exit+0xf6/0x100
do_IRQ+0x7f/0x160
ret_from_intr+0x0/0x2a
cpuidle_enter_state+0xcd/0x5b0
cpuidle_enter+0x37/0x60
do_idle+0x337/0x3f0
cpu_startup_entry+0x14/0x20
start_kernel+0x58b/0x5c5
secondary_startup_64+0xa4/0xb0
INITIAL USE at:
lock_acquire+0x175/0x4e0
_raw_spin_lock_irqsave+0x2b/0x40
shadow_context_status_change+0xfe/0x2f0
notifier_call_chain+0x6a/0xa0
__atomic_notifier_call_chain+0x5f/0xf0
execlists_schedule_in+0x2c8/0x690
__execlists_submission_tasklet+0x1303/0x1930
execlists_submit_request+0x1e7/0x230
submit_notify+0x105/0x2a4
__i915_sw_fence_complete+0xaa/0x380
__engine_park+0x313/0x5a0
____intel_wakeref_put_last+0x3e/0x90
intel_gt_resume+0x41e/0x440
intel_gt_init+0x283/0xbc0
i915_gem_init+0x197/0x240
i915_driver_probe+0xc2d/0x12e0
i915_pci_probe+0xa2/0x1e0
local_pci_probe+0x6f/0xb0
pci_device_probe+0x171/0x230
really_probe+0x17a/0x380
driver_probe_device+0x70/0xf0
device_driver_attach+0x82/0x90
__driver_attach+0x60/0x100
bus_for_each_dev+0xe4/0x140
bus_add_driver+0x257/0x2a0
driver_register+0xd3/0x150
i915_init+0x6d/0x80
do_one_initcall+0xb8/0x3a0
kernel_init_freeable+0x2b4/0x325
kernel_init+0x8/0x116
ret_from_fork+0x3a/0x50
}
__key.77812+0x0/0x40
... acquired at:
lock_acquire+0x175/0x4e0
fs_reclaim_acquire.part.0+0x20/0x30
kmem_cache_alloc_trace+0x2e/0x260
mmio_diff_handler+0xc0/0x150
intel_gvt_for_each_tracked_mmio+0x7b/0x140
vgpu_mmio_diff_show+0x111/0x2e0
seq_read+0x242/0x680
full_proxy_read+0x95/0xc0
vfs_read+0xc2/0x1b0
ksys_read+0xc4/0x160
do_syscall_64+0x63/0x290
entry_SYSCALL_64_after_hwframe+0x49/0xb3
the dependencies between the lock to be acquired
and SOFTIRQ-irq-unsafe lock:
-> (fs_reclaim){+.+.}-{0:0} ops: 1999031 {
HARDIRQ-ON-W at:
lock_acquire+0x175/0x4e0
fs_reclaim_acquire.part.0+0x20/0x30
kmem_cache_alloc_node_trace+0x2e/0x290
alloc_worker+0x2b/0xb0
init_rescuer.part.0+0x17/0xe0
workqueue_init+0x293/0x3bb
kernel_init_freeable+0x149/0x325
kernel_init+0x8/0x116
ret_from_fork+0x3a/0x50
SOFTIRQ-ON-W at:
lock_acquire+0x175/0x4e0
fs_reclaim_acquire.part.0+0x20/0x30
kmem_cache_alloc_node_trace+0x2e/0x290
alloc_worker+0x2b/0xb0
init_rescuer.part.0+0x17/0xe0
workqueue_init+0x293/0x3bb
kernel_init_freeable+0x149/0x325
kernel_init+0x8/0x116
ret_from_fork+0x3a/0x50
INITIAL USE at:
lock_acquire+0x175/0x4e0
fs_reclaim_acquire.part.0+0x20/0x30
kmem_cache_alloc_node_trace+0x2e/0x290
alloc_worker+0x2b/0xb0
init_rescuer.part.0+0x17/0xe0
workqueue_init+0x293/0x3bb
kernel_init_freeable+0x149/0x325
kernel_init+0x8/0x116
ret_from_fork+0x3a/0x50
}
__fs_reclaim_map+0x0/0x60
... acquired at:
lock_acquire+0x175/0x4e0
fs_reclaim_acquire.part.0+0x20/0x30
kmem_cache_alloc_trace+0x2e/0x260
mmio_diff_handler+0xc0/0x150
intel_gvt_for_each_tracked_mmio+0x7b/0x140
vgpu_mmio_diff_show+0x111/0x2e0
seq_read+0x242/0x680
full_proxy_read+0x95/0xc0
vfs_read+0xc2/0x1b0
ksys_read+0xc4/0x160
do_syscall_64+0x63/0x290
entry_SYSCALL_64_after_hwframe+0x49/0xb3
stack backtrace:
CPU: 5 PID: 1439 Comm: cat Not tainted 5.7.0-rc2 #400
Hardware name: Intel(R) Client Systems NUC8i7BEH/NUC8BEB, BIOS BECFL357.86A.0056.2018.1128.1717 11/28/2018
Call Trace:
dump_stack+0x97/0xe0
check_irq_usage.cold+0x428/0x434
? check_usage_forwards+0x2c0/0x2c0
? class_equal+0x11/0x20
? __bfs+0xd2/0x2d0
? in_any_class_list+0xa0/0xa0
? check_path+0x22/0x40
? check_noncircular+0x150/0x2b0
? print_circular_bug.isra.0+0x1b0/0x1b0
? mark_lock+0x13d/0xc50
? __lock_acquire+0x1e32/0x39b0
__lock_acquire+0x1e32/0x39b0
? timerqueue_add+0xc1/0x130
? register_lock_class+0xa60/0xa60
? mark_lock+0x13d/0xc50
lock_acquire+0x175/0x4e0
? __zone_pcp_update+0x80/0x80
? check_flags.part.0+0x210/0x210
? mark_held_locks+0x65/0x90
? _raw_spin_unlock_irqrestore+0x32/0x40
? lockdep_hardirqs_on+0x190/0x290
? fwtable_read32+0x163/0x480
? mmio_diff_handler+0xc0/0x150
fs_reclaim_acquire.part.0+0x20/0x30
? __zone_pcp_update+0x80/0x80
kmem_cache_alloc_trace+0x2e/0x260
mmio_diff_handler+0xc0/0x150
? vgpu_mmio_diff_open+0x30/0x30
intel_gvt_for_each_tracked_mmio+0x7b/0x140
vgpu_mmio_diff_show+0x111/0x2e0
? mmio_diff_handler+0x150/0x150
? rcu_read_lock_sched_held+0xa0/0xb0
? rcu_read_lock_bh_held+0xc0/0xc0
? kasan_unpoison_shadow+0x33/0x40
? __kasan_kmalloc.constprop.0+0xc2/0xd0
seq_read+0x242/0x680
? debugfs_locked_down.isra.0+0x70/0x70
full_proxy_read+0x95/0xc0
vfs_read+0xc2/0x1b0
ksys_read+0xc4/0x160
? kernel_write+0xb0/0xb0
? mark_held_locks+0x24/0x90
do_syscall_64+0x63/0x290
entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x7ffbe3e6efb2
Code: c0 e9 c2 fe ff ff 50 48 8d 3d ca cb 0a 00 e8 f5 19 02 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 54 24
RSP: 002b:00007ffd021c08a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007ffbe3e6efb2
RDX: 0000000000020000 RSI: 00007ffbe34cd000 RDI: 0000000000000003
RBP: 00007ffbe34cd000 R08: 00007ffbe34cc010 R09: 0000000000000000
R10: 0000000000000022 R11: 0000000000000246 R12: 0000562b6f0a11f0
R13: 0000000000000003 R14: 0000000000020000 R15: 0000000000020000
------------[ cut here ]------------
Acked-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/20200601035556.19999-1-colin.xu@intel.com
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Using _MASKED_BIT_ENABLE macro to set mask register bits is straight
forward and not likely to go wrong. However when checking which bit(s)
is(are) enabled, simply bitwise AND value and _MASKED_BIT_ENABLE() won't
output expected result. Suppose the register write is disabling bit 1
by setting 0xFFFF0000, however "& _MASKED_BIT_ENABLE(1)" outputs
0x00010000, and the non-zero check will pass which cause the old code
consider the new value set as an enabling operation.
We found guest set 0x80008000 on boot, and set 0xffff8000 during resume.
Both are legal settings but old code will block latter and force vgpu
enter fail-safe mode.
Introduce two new macro and make proper masked bit check in mmio handler:
IS_MASKED_BITS_ENABLED()
IS_MASKED_BITS_DISABLED()
V2: Rebase.
Reviewed-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/20200601030721.17129-1-colin.xu@intel.com
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D_CFL was incorrectly removed for:
GAMT_CHKN_BIT_REG
GEN9_CTX_PREEMPT_REG
V2: Update commit message.
V3: Rebase and split Fixes and mis-handled MMIO.
Fixes: 43226e6fe798 (drm/i915/gvt: replaced register address with name)
Reviewed-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/20200601030638.16002-1-colin.xu@intel.com
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_PLANE_CTL_3_A, _PLANE_CTL_3_B and _PLANE_SURF_3_A are handled, but
miss _PLANE_SURF_3_B.
Reviewed-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/20200601030457.14002-1-colin.xu@intel.com
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Pull networking fixes from David Miller:
1) Don't get per-cpu pointer with preemption enabled in nft_set_pipapo,
fix from Stefano Brivio.
2) Fix memory leak in ctnetlink, from Pablo Neira Ayuso.
3) Multiple definitions of MPTCP_PM_MAX_ADDR, from Geliang Tang.
4) Accidently disabling NAPI in non-error paths of macb_open(), from
Charles Keepax.
5) Fix races between alx_stop and alx_remove, from Zekun Shen.
6) We forget to re-enable SRIOV during resume in bnxt_en driver, from
Michael Chan.
7) Fix memory leak in ipv6_mc_destroy_dev(), from Wang Hai.
8) rxtx stats use wrong index in mvpp2 driver, from Sven Auhagen.
9) Fix memory leak in mptcp_subflow_create_socket error path, from Wei
Yongjun.
10) We should not adjust the TCP window advertised when sending dup acks
in non-SACK mode, because it won't be counted as a dup by the sender
if the window size changes. From Eric Dumazet.
11) Destroy the right number of queues during remove in mvpp2 driver,
from Sven Auhagen.
12) Various WOL and PM fixes to e1000 driver, from Chen Yu, Vaibhav
Gupta, and Arnd Bergmann.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (35 commits)
e1000e: fix unused-function warning
e1000: use generic power management
e1000e: Do not wake up the system via WOL if device wakeup is disabled
lan743x: add MODULE_DEVICE_TABLE for module loading alias
mlxsw: spectrum: Adjust headroom buffers for 8x ports
bareudp: Fixed configuration to avoid having garbage values
mvpp2: remove module bugfix
tcp: grow window for OOO packets only for SACK flows
mptcp: fix memory leak in mptcp_subflow_create_socket()
netfilter: flowtable: Make nf_flow_table_offload_add/del_cb inline
net/sched: act_ct: Make tcf_ct_flow_table_restore_skb inline
net: dsa: sja1105: fix PTP timestamping with large tc-taprio cycles
mvpp2: ethtool rxtx stats fix
MAINTAINERS: switch to my private email for Renesas Ethernet drivers
rocker: fix incorrect error handling in dma_rings_init
test_objagg: Fix potential memory leak in error handling
net: ethernet: mtk-star-emac: simplify interrupt handling
mld: fix memory leak in ipv6_mc_destroy_dev()
bnxt_en: Return from timer if interface is not in open state.
bnxt_en: Fix AER reset logic on 57500 chips.
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
Pull flexible-array member conversions from Gustavo A. R. Silva:
"Replace zero-length arrays with flexible-array members.
Notice that all of these patches have been baking in linux-next for
two development cycles now.
There is a regular need in the kernel to provide a way to declare
having a dynamically sized set of trailing elements in a structure.
Kernel code should always use “flexible array members”[1] for these
cases. The older style of one-element or zero-length arrays should no
longer be used[2].
C99 introduced “flexible array members”, which lacks a numeric size
for the array declaration entirely:
struct something {
size_t count;
struct foo items[];
};
This is the way the kernel expects dynamically sized trailing elements
to be declared. It allows the compiler to generate errors when the
flexible array does not occur last in the structure, which helps to
prevent some kind of undefined behavior[3] bugs from being
inadvertently introduced to the codebase.
It also allows the compiler to correctly analyze array sizes (via
sizeof(), CONFIG_FORTIFY_SOURCE, and CONFIG_UBSAN_BOUNDS). For
instance, there is no mechanism that warns us that the following
application of the sizeof() operator to a zero-length array always
results in zero:
struct something {
size_t count;
struct foo items[0];
};
struct something *instance;
instance = kmalloc(struct_size(instance, items, count), GFP_KERNEL);
instance->count = count;
size = sizeof(instance->items) * instance->count;
memcpy(instance->items, source, size);
At the last line of code above, size turns out to be zero, when one
might have thought it represents the total size in bytes of the
dynamic memory recently allocated for the trailing array items. Here
are a couple examples of this issue[4][5].
Instead, flexible array members have incomplete type, and so the
sizeof() operator may not be applied[6], so any misuse of such
operators will be immediately noticed at build time.
The cleanest and least error-prone way to implement this is through
the use of a flexible array member:
struct something {
size_t count;
struct foo items[];
};
struct something *instance;
instance = kmalloc(struct_size(instance, items, count), GFP_KERNEL);
instance->count = count;
size = sizeof(instance->items[0]) * instance->count;
memcpy(instance->items, source, size);
instead"
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour")
[4] commit f2cd32a443da ("rndis_wlan: Remove logically dead code")
[5] commit ab91c2a89f86 ("tpm: eventlog: Replace zero-length array with flexible-array member")
[6] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
* tag 'flex-array-conversions-5.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: (41 commits)
w1: Replace zero-length array with flexible-array
tracing/probe: Replace zero-length array with flexible-array
soc: ti: Replace zero-length array with flexible-array
tifm: Replace zero-length array with flexible-array
dmaengine: tegra-apb: Replace zero-length array with flexible-array
stm class: Replace zero-length array with flexible-array
Squashfs: Replace zero-length array with flexible-array
ASoC: SOF: Replace zero-length array with flexible-array
ima: Replace zero-length array with flexible-array
sctp: Replace zero-length array with flexible-array
phy: samsung: Replace zero-length array with flexible-array
RxRPC: Replace zero-length array with flexible-array
rapidio: Replace zero-length array with flexible-array
media: pwc: Replace zero-length array with flexible-array
firmware: pcdp: Replace zero-length array with flexible-array
oprofile: Replace zero-length array with flexible-array
block: Replace zero-length array with flexible-array
tools/testing/nvdimm: Replace zero-length array with flexible-array
libata: Replace zero-length array with flexible-array
kprobes: Replace zero-length array with flexible-array
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2020-06-16
This series contains fixes to e1000 and e1000e.
Chen fixes an e1000e issue where systems could be waken via WoL, even
though the user has disabled the wakeup bit via sysfs.
Vaibhav Gupta updates the e1000 driver to clean up the legacy Power
Management hooks.
Arnd Bergmann cleans up the inconsistent use CONFIG_PM_SLEEP
preprocessor tags, which also resolves the compiler warnings about the
possibility of unused structure.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The CONFIG_PM_SLEEP #ifdef checks in this file are inconsistent,
leading to a warning about sometimes unused function:
drivers/net/ethernet/intel/e1000e/netdev.c:137:13: error: unused function 'e1000e_check_me' [-Werror,-Wunused-function]
Rather than adding more #ifdefs, just remove them completely
and mark the PM functions as __maybe_unused to let the compiler
work it out on it own.
Fixes: e086ba2fccda ("e1000e: disable s0ix entry and exit flows for ME systems")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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With legacy PM hooks, it was the responsibility of a driver to manage PCI
states and also the device's power state. The generic approach is to let PCI
core handle the work.
e1000_suspend() calls __e1000_shutdown() to perform intermediate tasks.
__e1000_shutdown() modifies the value of "wake" (device should be wakeup
enabled or not), responsible for controlling the flow of legacy PM.
Since, PCI core has no idea about the value of "wake", new code for generic
PM may produce unexpected results. Thus, use "device_set_wakeup_enable()"
to wakeup-enable the device accordingly.
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Currently the system will be woken up via WOL(Wake On LAN) even if the
device wakeup ability has been disabled via sysfs:
cat /sys/devices/pci0000:00/0000:00:1f.6/power/wakeup
disabled
The system should not be woken up if the user has explicitly
disabled the wake up ability for this device.
This patch clears the WOL ability of this network device if the
user has disabled the wake up ability in sysfs.
Fixes: bc7f75fa9788 ("[E1000E]: New pci-express e1000 driver")
Reported-by: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
|
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Without a MODULE_DEVICE_TABLE the attributes are missing that create
an alias for auto-loading the module in userspace via hotplug.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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|
The port's headroom buffers are used to store packets while they
traverse the device's pipeline and also to store packets that are egress
mirrored.
On Spectrum-3, ports with eight lanes use two headroom buffers between
which the configured headroom size is split.
In order to prevent packet loss, multiply the calculated headroom size
by two for 8x ports.
Fixes: da382875c616 ("mlxsw: spectrum: Extend to support Spectrum-3 ASIC")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Code to initialize the conf structure while gathering the configuration
of the device was missing.
Fixes: 571912c69f0e ("net: UDP tunnel encapsulation module for tunnelling different protocols like MPLS, IP, NSH etc.")
Signed-off-by: Martin <martin.varghese@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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The remove function does not destroy all
BM Pools when per cpu pool is active.
When reloading the mvpp2 as a module the BM Pools
are still active in hardware and due to the bug
have twice the size now old + new.
This eventually leads to a kernel crash.
v2:
* add Fixes tag
Fixes: 7d04b0b13b11 ("mvpp2: percpu buffers")
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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Unable to handle kernel NULL pointer dereference at virtual address 00000918
pgd = (ptrval)
[00000918] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.7.0-15001-gfa384b50b96b-dirty #514
Hardware name: ST-Ericsson Ux5x0 platform (Device Tree Support)
PC is at mcde_display_enable+0x78/0x7c0
LR is at mcde_display_enable+0x78/0x7c0
Fix this by using to_mcde() as in other functions.
Fixes: fd7ee85cfe7b ("drm/mcde: Don't use drm_device->dev_private")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200613223027.4189309-2-linus.walleij@linaro.org
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The following bug appeared in the MCDE driver/display
initialization during the recent merge window.
First the place we call drm_fbdev_generic_setup() in the
wrong place: this needs to be called AFTER calling
drm_dev_register() else we get this splat:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at ../drivers/gpu/drm/drm_fb_helper.c:2198 drm_fbdev_generic_setup+0x164/0x1a8
mcde a0350000.mcde: Device has not been registered.
Modules linked in:
Hardware name: ST-Ericsson Ux5x0 platform (Device Tree Support)
[<c010e704>] (unwind_backtrace) from [<c010a86c>] (show_stack+0x10/0x14)
[<c010a86c>] (show_stack) from [<c0414f38>] (dump_stack+0x9c/0xb0)
[<c0414f38>] (dump_stack) from [<c0121c8c>] (__warn+0xb8/0xd0)
[<c0121c8c>] (__warn) from [<c0121d18>] (warn_slowpath_fmt+0x74/0xb8)
[<c0121d18>] (warn_slowpath_fmt) from [<c04b154c>] (drm_fbdev_generic_setup+0x164/0x1a8)
[<c04b154c>] (drm_fbdev_generic_setup) from [<c04ed278>] (mcde_drm_bind+0xc4/0x160)
[<c04ed278>] (mcde_drm_bind) from [<c04f06b8>] (try_to_bring_up_master+0x15c/0x1a4)
(...)
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200613223027.4189309-1-linus.walleij@linaro.org
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The "ie_len" variable is in the 0-255 range and it comes from the
network. If it's over NDIS_802_11_LENGTH_RATES_EX (16) then that will
lead to memory corruption.
Fixes: 554c0a3abf21 ("staging: Add rtl8723bs sdio wifi driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200603101958.GA1845750@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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|
The function hif_scan() return the timeout for the completion of the
scan request. It is the only function from hif_tx.c that return another
thing than just an error code. This behavior is not coherent with the
rest of file. Worse, if value returned is positive, the caller can't
make say if it is a timeout or the value returned by the hardware.
Uniformize API with other HIF functions, only return the error code and
pass timeout with parameters.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200529121256.1045521-1-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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|
It is guarantee that the loop will stop at first iteration. So drop the
loop.
Fixes: 6bf418c50f98a ("staging: wfx: change the way to choose frame to send")
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200529121603.1050891-2-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In order to work properly all the queues of the device must be filled (the
device chooses itself the queue to use depending of AC parameters and
other things). It is the job of wfx_tx_queues_get_skb() to choose which
queue must be filled. However, the sorting algorithm was inverted, so it
prioritized the already filled queue! Consequently, the AC priorities was
badly broken.
Fixes: 6bf418c50f98a ("staging: wfx: change the way to choose frame to send")
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200529121603.1050891-1-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
As of commit 4dc55525b095 ("drm: plane: Verify that no or all planes
have a zpos property") a warning is emitted if there's a mix of planes
with and without a zpos property.
On Tegra, cursor planes are always composited on top of all other
planes, which is why they never had a zpos property attached to them.
However, since the composition order is fixed, this is trivial to
remedy by simply attaching an immutable zpos property to them.
v3: do not hardcode zpos for overlay planes used as cursor (Dmitry)
v2: hardcode cursor plane zpos to 255 instead of 0 (Ville)
Reported-by: Jonathan Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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|
Currently when a host1x device driver is unregistered, it is not
detached from the host1x controller, which means that the device
will stay around and when the driver is registered again, it may
bind to the old, stale device rather than the new one that was
created from scratch upon driver registration. This in turn can
cause various weird crashes within the driver core because it is
confronted with a device that was already deleted.
Fix this by detaching the driver from the host1x controller when
it is unregistered. This ensures that the deleted device also is
no longer present in the device list that drivers will bind to.
Reported-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Tested-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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osd_req_flags is overly general and doesn't suit its only user
(read_from_replica option) well:
- applying osd_req_flags in account_request() affects all OSD
requests, including linger (i.e. watch and notify). However,
linger requests should always go to the primary even though
some of them are reads (e.g. notify has side effects but it
is a read because it doesn't result in mutation on the OSDs).
- calls to class methods that are reads are allowed to go to
the replica, but most such calls issued for "rbd map" and/or
exclusive lock transitions are requested to be resent to the
primary via EAGAIN, doubling the latency.
Get rid of global osd_req_flags and set read_from_replica flag
only on specific OSD requests instead.
Fixes: 8ad44d5e0d1e ("libceph: read_from_replica option")
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
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In order to remove the dependency on the simple-bus compatible string,
which causes the OF driver core to register all child devices, make the
display-hub driver explicitly register the display controller children.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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In order to remove the dependency on the simple-bus compatible string,
which causes the OF driver core to register all child devices, make the
host1x driver explicitly register its children.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Though the unconditional enable/disable code is not a final solution,
we don't want to run into a NULL pointer situation when window group
doesn't link to its DC parent if the DC is disabled in Device Tree.
So this patch simply adds a check to make sure that window group has
a valid parent before running into tegra_windowgroup_enable/disable.
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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host1x_debug_init() must be reverted in an error handling path.
This is already fixed in the remove function since commit 44156eee91ba
("gpu: host1x: Clean up debugfs on removal")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Thierry Reding <treding@nvidia.com>
|
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This patch fixes below warning reported by coccicheck
drivers/s390/crypto/zcrypt_ep11misc.c:198:8-15: WARNING:
kzalloc should be used for cprb, instead of kmalloc/memset
Link: https://lkml.kernel.org/r/1587472548-105240-1-git-send-email-zou_wei@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
|
|
Support for hibernation on s390 has been recently been removed with
commit 394216275c7d ("s390: remove broken hibernate / power management
support"), no need to keep unused code around.
Link: https://lkml.kernel.org/r/20200526093629.257649-1-cohuck@redhat.com
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Streamline the processing of QDIO Input Queues, and remove some
intermittent SLSB updates (no deleting of old ACKs, no redundant
transitions through NOT_INIT).
Rather than counting ACKs, we now keep track of the whole batch of
SBALs that were completed during the current polling cycle.
Most completed SBALs stay in their initial state (ie. PRIMED or ERROR),
except that the most recent SBAL in each sub-run is ACKed for
IRQ reduction.
The only logic changes happen in inbound_handle_work(), the other
delta is just a renaming of the variables that track the SBAL batch.
Note that in particular we don't need to flip the _oldest_ SBAL to
an idle state (eg. NOT_INIT or ACKed) as a guard against catching our
own tail. Since get_inbound_buffer_frontier() will never scan more than
the remaining nr_buf_used SBALs, this scenario just doesn't occur.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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xchg() for a single-byte location assembles to a 4-byte Compare&Swap,
wrapped into a non-trivial amount of retry code that deals with
concurrent modifications to the unaffected bytes.
Change it to a simple byte-store, but preserve the memory ordering
semantics that the CS provided.
This simplifies the generated code for a hot path, and in theory also
allows us to amortize the memory barriers over multiple SLSB updates.
CC: Andreas Krebbel <krebbel@linux.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
|
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Beginning a new release cycles for what will become v5.8. Updating
drm-misc-fixes accordingly.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
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In most cases, such as CONFIG_ACPI_CUSTOM_DSDT and
CONFIG_ACPI_TABLE_UPGRADE, boot-time modifications to firmware tables
are tied to specific Kconfig options. Currently this is not the case
for modifying the ACPI SSDT via the efivar_ssdt kernel command line
option and associated EFI variable.
This patch adds CONFIG_EFI_CUSTOM_SSDT_OVERLAYS, which defaults
disabled, in order to allow enabling or disabling that feature during
the build.
Cc: <stable@vger.kernel.org>
Signed-off-by: Peter Jones <pjones@redhat.com>
Link: https://lore.kernel.org/r/20200615202408.2242614-1-pjones@redhat.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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Provide missing descriptions for EFI stub helper functions.
Adjust formatting of existing descriptions to kernel style.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Link: https://lore.kernel.org/r/20200615234231.21059-1-xypron.glpk@gmx.de
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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For all ddi, encoder->type holds output type as ddi,
assigning it to individual o/p types is no more valid.
Fixes: 362bfb995b78 ("drm/i915/tgl: Add DKL PHY vswing table for HDMI")
v2: Rebase, no functional change.
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200612082237.11886-1-vandita.kulkarni@intel.com
(cherry picked from commit 94641eb6c69682884abbecf22fe5b7c185af6a06)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
|
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Atm, hotplug interrupts on TypeC ports are left enabled after detecting
an interrupt storm, fix this.
Reported-by: Kunal Joshi <kunal1.joshi@intel.com>
References: https://gitlab.freedesktop.org/drm/intel/-/issues/351
Bugzilla: https://gitlab.freedesktop.org/drm/intel/-/issues/1964
Cc: Kunal Joshi <kunal1.joshi@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200612121731.19596-1-imre.deak@intel.com
(cherry picked from commit 587a87b9d7e94927edcdea018565bc1939381eb1)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
|
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Rescue the GT workarounds from being buried inside init_clock_gating so
that we remember to apply them after a GT reset, and that they are
included in our verification that the workarounds are applied.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200611080140.30228-6-chris@chris-wilson.co.uk
(cherry picked from commit 2bcefd0d263ab4a72f0d61921ae6b0dc81606551)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
|
|
Rescue the GT workarounds from being buried inside init_clock_gating so
that we remember to apply them after a GT reset, and that they are
included in our verification that the workarounds are applied.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200611080140.30228-5-chris@chris-wilson.co.uk
(cherry picked from commit 806a45c0838d253e306a6384057e851b65d11099)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
|
|
Rescue the GT workarounds from being buried inside init_clock_gating so
that we remember to apply them after a GT reset, and that they are
included in our verification that the workarounds are applied.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200611080140.30228-4-chris@chris-wilson.co.uk
(cherry picked from commit c3b93a943f2c9ee4a106db100a2fc3b2f126bfc5)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
|
|
Rescue the GT workarounds from being buried inside init_clock_gating so
that we remember to apply them after a GT reset, and that they are
included in our verification that the workarounds are applied.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200611080140.30228-3-chris@chris-wilson.co.uk
(cherry picked from commit 7331c356b6d2d8a01422cacab27478a1dba9fa2a)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
|
|
Rescue the GT workarounds from being buried inside init_clock_gating so
that we remember to apply them after a GT reset, and that they are
included in our verification that the workarounds are applied.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200611080140.30228-2-chris@chris-wilson.co.uk
(cherry picked from commit 19f1f627b33385a2f0855cbc7d33d86d7f4a1e78)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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|
Rescue the GT workarounds from being buried inside init_clock_gating so
that we remember to apply them after a GT reset, and that they are
included in our verification that the workarounds are applied.
v2: Leave HSW_SCRATCH to set an explicit value, not or in our disable
bit.
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2011
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200611093015.11370-1-chris@chris-wilson.co.uk
(cherry picked from commit f93ec5fb563779bda4501890b1854526de58e0f1)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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