From: Johannes Berg johannes.berg@intel.com
[ Upstream commit 04516706bb99889986ddfa3a769ed50d2dc7ac13 ]
When we read device memory, we lock a spinlock, write the address we want to read from the device and then spin in a loop reading the data in 32-bit quantities from another register.
As the description makes clear, this is rather inefficient, incurring a PCIe bus transaction for every read. In a typical device today, we want to read 786k SMEM if it crashes, leading to 192k register reads. Occasionally, we've seen the whole loop take over 20 seconds and then triggering the soft lockup detector.
Clearly, it is unreasonable to spin here for such extended periods of time.
To fix this, break the loop down into an outer and an inner loop, and break out of the inner loop if more than half a second elapsed. To avoid too much overhead, check for that only every 128 reads, though there's no particular reason for that number. Then, unlock and relock to obtain NIC access again, reprogram the start address and continue.
This will keep (interrupt) latencies on the CPU down to a reasonable time.
Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Mordechay Goodstein mordechay.goodstein@intel.com Signed-off-by: Luca Coelho luciano.coelho@intel.com Signed-off-by: Kalle Valo kvalo@codeaurora.org Link: https://lore.kernel.org/r/iwlwifi.20201022165103.45878a7e49aa.I3b9b9c5a10002... Signed-off-by: Sasha Levin sashal@kernel.org --- .../net/wireless/intel/iwlwifi/pcie/trans.c | 36 ++++++++++++++----- 1 file changed, 27 insertions(+), 9 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c index 24da496151353..f48c7cac122e9 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c @@ -2121,18 +2121,36 @@ static int iwl_trans_pcie_read_mem(struct iwl_trans *trans, u32 addr, void *buf, int dwords) { unsigned long flags; - int offs, ret = 0; + int offs = 0; u32 *vals = buf;
- if (iwl_trans_grab_nic_access(trans, &flags)) { - iwl_write32(trans, HBUS_TARG_MEM_RADDR, addr); - for (offs = 0; offs < dwords; offs++) - vals[offs] = iwl_read32(trans, HBUS_TARG_MEM_RDAT); - iwl_trans_release_nic_access(trans, &flags); - } else { - ret = -EBUSY; + while (offs < dwords) { + /* limit the time we spin here under lock to 1/2s */ + ktime_t timeout = ktime_add_us(ktime_get(), 500 * USEC_PER_MSEC); + + if (iwl_trans_grab_nic_access(trans, &flags)) { + iwl_write32(trans, HBUS_TARG_MEM_RADDR, + addr + 4 * offs); + + while (offs < dwords) { + vals[offs] = iwl_read32(trans, + HBUS_TARG_MEM_RDAT); + offs++; + + /* calling ktime_get is expensive so + * do it once in 128 reads + */ + if (offs % 128 == 0 && ktime_after(ktime_get(), + timeout)) + break; + } + iwl_trans_release_nic_access(trans, &flags); + } else { + return -EBUSY; + } } - return ret; + + return 0; }
static int iwl_trans_pcie_write_mem(struct iwl_trans *trans, u32 addr,
From: Markus Reichl m.reichl@fivetechno.de
[ Upstream commit 0011c6d182774fc781fb9e115ebe8baa356029ae ]
Recently introduced async probe on mmc devices can shuffle block IDs. Pin them to fixed values to ease booting in environments where UUIDs are not practical. Use newly introduced aliases for mmcblk devices from [1].
[1] https://patchwork.kernel.org/patch/11747669/
Signed-off-by: Markus Reichl m.reichl@fivetechno.de Reviewed-by: Douglas Anderson dianders@chromium.org Link: https://lore.kernel.org/r/20201104162356.1251-1-m.reichl@fivetechno.de Signed-off-by: Heiko Stuebner heiko@sntech.de Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/rockchip/rk3399.dtsi | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi index f14e8c5c41acc..f4ee7c4f83b8b 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi @@ -29,6 +29,9 @@ aliases { i2c6 = &i2c6; i2c7 = &i2c7; i2c8 = &i2c8; + mmc0 = &sdio0; + mmc1 = &sdmmc; + mmc2 = &sdhci; serial0 = &uart0; serial1 = &uart1; serial2 = &uart2;
From: Sara Sharon sara.sharon@intel.com
[ Upstream commit fe56d05ee6c87f6a1a8c7267affd92c9438249cc ]
During CSA, we briefly nullify the phy context, in __iwl_mvm_unassign_vif_chanctx. In case we have a FW assert right after it, it remains NULL though. We end up running into endless loop due to mac80211 trying repeatedly to move us to ASSOC state, and we keep returning -EINVAL. Later down the road we hit a kernel panic.
Detect and avoid this endless loop.
Signed-off-by: Sara Sharon sara.sharon@intel.com Signed-off-by: Luca Coelho luciano.coelho@intel.com Signed-off-by: Kalle Valo kvalo@codeaurora.org Link: https://lore.kernel.org/r/iwlwifi.20201107104557.d64de2c17bff.Iedd0d2afa20a2... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index 525b26e0f65ee..2fad20c845b47 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -2880,7 +2880,7 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
/* this would be a mac80211 bug ... but don't crash */ if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) - return -EINVAL; + return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) ? 0 : -EINVAL;
/* * If we are in a STA removal flow and in DQA mode:
From: Michael Ellerman mpe@ellerman.id.au
[ Upstream commit e02152ba2810f7c88cb54e71cda096268dfa9241 ]
Currently a build with CONFIG_E200=y will fail with:
Error: invalid switch -me200 Error: unrecognized option -me200
Upstream binutils has never supported an -me200 option. Presumably it was supported at some point by either a fork or Freescale internal binutils.
We can't support code that we can't even build test, so drop the addition of -me200 to the build flags, so we can at least build with CONFIG_E200=y.
Reported-by: Németh Márton nm127@freemail.hu Reported-by: kernel test robot lkp@intel.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Reviewed-by: Nick Desaulniers ndesaulniers@google.com Acked-by: Scott Wood oss@buserror.net Link: https://lore.kernel.org/r/20201116120913.165317-1-mpe@ellerman.id.au Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/Makefile | 1 - 1 file changed, 1 deletion(-)
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 8954108df4570..f51e21ea53492 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -251,7 +251,6 @@ endif
cpu-as-$(CONFIG_4xx) += -Wa,-m405 cpu-as-$(CONFIG_ALTIVEC) += $(call as-option,-Wa$(comma)-maltivec) -cpu-as-$(CONFIG_E200) += -Wa,-me200 cpu-as-$(CONFIG_E500) += -Wa,-me500
# When using '-many -mpower4' gas will first try and find a matching power4
From: Vineet Gupta vgupta@synopsys.com
[ Upstream commit e42404fa10fd11fe72d0a0e149a321d10e577715 ]
To start stack unwinding (SP, PC and BLINK) are needed. When the explicit execution context (pt_regs etc) is not available, unwinder assumes the task is sleeping (in __switch_to()) and fetches SP and BLINK from kernel mode stack.
But this assumption is not true, specially in a SMP system, when top runs on 1 core, there may be active running processes on all cores.
So when unwinding non courrent tasks, ensure they are NOT running.
And while at it, handle the self unwinding case explicitly.
This came out of investigation of a customer reported hang with rcutorture+top
Link: https://github.com/foss-for-synopsys-dwc-arc-processors/linux/issues/31 Signed-off-by: Vineet Gupta vgupta@synopsys.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arc/kernel/stacktrace.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-)
diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c index 0fed32b959232..a211e87aa6d93 100644 --- a/arch/arc/kernel/stacktrace.c +++ b/arch/arc/kernel/stacktrace.c @@ -41,15 +41,15 @@
#ifdef CONFIG_ARC_DW2_UNWIND
-static void seed_unwind_frame_info(struct task_struct *tsk, - struct pt_regs *regs, - struct unwind_frame_info *frame_info) +static int +seed_unwind_frame_info(struct task_struct *tsk, struct pt_regs *regs, + struct unwind_frame_info *frame_info) { /* * synchronous unwinding (e.g. dump_stack) * - uses current values of SP and friends */ - if (tsk == NULL && regs == NULL) { + if (regs == NULL && (tsk == NULL || tsk == current)) { unsigned long fp, sp, blink, ret; frame_info->task = current;
@@ -68,11 +68,15 @@ static void seed_unwind_frame_info(struct task_struct *tsk, frame_info->call_frame = 0; } else if (regs == NULL) { /* - * Asynchronous unwinding of sleeping task - * - Gets SP etc from task's pt_regs (saved bottom of kernel - * mode stack of task) + * Asynchronous unwinding of a likely sleeping task + * - first ensure it is actually sleeping + * - if so, it will be in __switch_to, kernel mode SP of task + * is safe-kept and BLINK at a well known location in there */
+ if (tsk->state == TASK_RUNNING) + return -1; + frame_info->task = tsk;
frame_info->regs.r27 = TSK_K_FP(tsk); @@ -106,6 +110,8 @@ static void seed_unwind_frame_info(struct task_struct *tsk, frame_info->regs.r63 = regs->ret; frame_info->call_frame = 0; } + + return 0; }
#endif @@ -119,7 +125,8 @@ arc_unwind_core(struct task_struct *tsk, struct pt_regs *regs, unsigned int address; struct unwind_frame_info frame_info;
- seed_unwind_frame_info(tsk, regs, &frame_info); + if (seed_unwind_frame_info(tsk, regs, &frame_info)) + return 0;
while (1) { address = UNW_PC(&frame_info);
From: Can Guo cang@codeaurora.org
[ Upstream commit 73cc291c270248567245f084dcdf5078069af6b5 ]
If someone plays with the UFS clk scaling devfreq governor through sysfs, ufshcd_devfreq_scale may be called even when HBA is not runtime ACTIVE. This can lead to unexpected error. We cannot just protect it by calling pm_runtime_get_sync() because that may cause a race condition since HBA runtime suspend ops need to suspend clk scaling. To fix this call pm_runtime_get_noresume() and check HBA's runtime status. Only proceed if HBA is runtime ACTIVE, otherwise just bail.
governor_store devfreq_performance_handler update_devfreq devfreq_set_target ufshcd_devfreq_target ufshcd_devfreq_scale
Link: https://lore.kernel.org/r/1600758548-28576-1-git-send-email-cang@codeaurora.... Reviewed-by: Stanley Chu stanley.chu@mediatek.com Signed-off-by: Can Guo cang@codeaurora.org Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/ufs/ufshcd.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 7e4e6e982055e..61b1eae42ea85 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -1281,8 +1281,15 @@ static int ufshcd_devfreq_target(struct device *dev, } spin_unlock_irqrestore(hba->host->host_lock, irq_flags);
+ pm_runtime_get_noresume(hba->dev); + if (!pm_runtime_active(hba->dev)) { + pm_runtime_put_noidle(hba->dev); + ret = -EAGAIN; + goto out; + } start = ktime_get(); ret = ufshcd_devfreq_scale(hba, scale_up); + pm_runtime_put(hba->dev);
trace_ufshcd_profile_clk_scaling(dev_name(hba->dev), (scale_up ? "up" : "down"),
From: Yves-Alexis Perez corsac@corsac.net
[ Upstream commit f33d9e2b48a34e1558b67a473a1fc1d6e793f93c ]
Starting with iOS 14 released in September 2020, connectivity using the personal hotspot USB tethering function of iOS devices is broken.
Communication between the host and the device (for example ICMP traffic or DNS resolution using the DNS service running in the device itself) works fine, but communication to endpoints further away doesn't work.
Investigation on the matter shows that no UDP and ICMP traffic from the tethered host is reaching the Internet at all. For TCP traffic there are exchanges between tethered host and server but packets are modified in transit leading to impossible communication.
After some trials Matti Vuorela discovered that reducing the URB buffer size by two bytes restored the previous behavior. While a better solution might exist to fix the issue, since the protocol is not publicly documented and considering the small size of the fix, let's do that.
Tested-by: Matti Vuorela matti.vuorela@bitfactor.fi Signed-off-by: Yves-Alexis Perez corsac@corsac.net Link: https://lore.kernel.org/linux-usb/CAAn0qaXmysJ9vx3ZEMkViv_B19ju-_ExN8Yn_uSef... Link: https://github.com/libimobiledevice/libimobiledevice/issues/1038 Link: https://lore.kernel.org/r/20201119172439.94988-1-corsac@corsac.net Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/usb/ipheth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c index 3d71f17163902..8e2eb20613548 100644 --- a/drivers/net/usb/ipheth.c +++ b/drivers/net/usb/ipheth.c @@ -70,7 +70,7 @@ #define IPHETH_USBINTF_SUBCLASS 253 #define IPHETH_USBINTF_PROTO 1
-#define IPHETH_BUF_SIZE 1516 +#define IPHETH_BUF_SIZE 1514 #define IPHETH_IP_ALIGN 2 /* padding at front of URB */ #define IPHETH_TX_TIMEOUT (5 * HZ)
From: Jens Axboe axboe@kernel.dk
[ Upstream commit 5aac0390a63b8718237a61dd0d24a29201d1c94a ]
tun only checks the file O_NONBLOCK flag, but it should also be checking the iocb IOCB_NOWAIT flag. Any fops using ->read/write_iter() should check both, otherwise it breaks users that correctly expect O_NONBLOCK semantics if IOCB_NOWAIT is set.
Signed-off-by: Jens Axboe axboe@kernel.dk Link: https://lore.kernel.org/r/e9451860-96cc-c7c7-47b8-fe42cadd5f4c@kernel.dk Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/tun.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index d84a09172ddbf..fe0e02e11f294 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1988,12 +1988,15 @@ static ssize_t tun_chr_write_iter(struct kiocb *iocb, struct iov_iter *from) struct tun_file *tfile = file->private_data; struct tun_struct *tun = tun_get(tfile); ssize_t result; + int noblock = 0;
if (!tun) return -EBADFD;
- result = tun_get_user(tun, tfile, NULL, from, - file->f_flags & O_NONBLOCK, false); + if ((file->f_flags & O_NONBLOCK) || (iocb->ki_flags & IOCB_NOWAIT)) + noblock = 1; + + result = tun_get_user(tun, tfile, NULL, from, noblock, false);
tun_put(tun); return result; @@ -2214,10 +2217,15 @@ static ssize_t tun_chr_read_iter(struct kiocb *iocb, struct iov_iter *to) struct tun_file *tfile = file->private_data; struct tun_struct *tun = tun_get(tfile); ssize_t len = iov_iter_count(to), ret; + int noblock = 0;
if (!tun) return -EBADFD; - ret = tun_do_read(tun, tfile, to, file->f_flags & O_NONBLOCK, NULL); + + if ((file->f_flags & O_NONBLOCK) || (iocb->ki_flags & IOCB_NOWAIT)) + noblock = 1; + + ret = tun_do_read(tun, tfile, to, noblock, NULL); ret = min_t(ssize_t, ret, len); if (ret > 0) iocb->ki_pos = ret;
From: Xu Qiang xuqiang36@huawei.com
[ Upstream commit 74cde1a53368aed4f2b4b54bf7030437f64a534b ]
On systems without HW-based collections (i.e. anything except GIC-500), we rely on firmware to perform the ITS save/restore. This doesn't really work, as although FW can properly save everything, it cannot fully restore the state of the command queue (the read-side is reset to the head of the queue). This results in the ITS consuming previously processed commands, potentially corrupting the state.
Instead, let's always save the ITS state on suspend, disabling it in the process, and restore the full state on resume. This saves us from broken FW as long as it doesn't enable the ITS by itself (for which we can't do anything).
This amounts to simply dropping the ITS_FLAGS_SAVE_SUSPEND_STATE.
Signed-off-by: Xu Qiang xuqiang36@huawei.com [maz: added warning on resume, rewrote commit message] Signed-off-by: Marc Zyngier maz@kernel.org Link: https://lore.kernel.org/r/20201107104226.14282-1-xuqiang36@huawei.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/irqchip/irq-gic-v3-its.c | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-)
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index d5cc32e80f5e2..cd58c123f547e 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -49,7 +49,6 @@ #define ITS_FLAGS_CMDQ_NEEDS_FLUSHING (1ULL << 0) #define ITS_FLAGS_WORKAROUND_CAVIUM_22375 (1ULL << 1) #define ITS_FLAGS_WORKAROUND_CAVIUM_23144 (1ULL << 2) -#define ITS_FLAGS_SAVE_SUSPEND_STATE (1ULL << 3)
#define RDIST_FLAGS_PROPBASE_NEEDS_FLUSHING (1 << 0)
@@ -3240,9 +3239,6 @@ static int its_save_disable(void) list_for_each_entry(its, &its_nodes, entry) { void __iomem *base;
- if (!(its->flags & ITS_FLAGS_SAVE_SUSPEND_STATE)) - continue; - base = its->base; its->ctlr_save = readl_relaxed(base + GITS_CTLR); err = its_force_quiescent(base); @@ -3261,9 +3257,6 @@ static int its_save_disable(void) list_for_each_entry_continue_reverse(its, &its_nodes, entry) { void __iomem *base;
- if (!(its->flags & ITS_FLAGS_SAVE_SUSPEND_STATE)) - continue; - base = its->base; writel_relaxed(its->ctlr_save, base + GITS_CTLR); } @@ -3283,9 +3276,6 @@ static void its_restore_enable(void) void __iomem *base; int i;
- if (!(its->flags & ITS_FLAGS_SAVE_SUSPEND_STATE)) - continue; - base = its->base;
/* @@ -3293,7 +3283,10 @@ static void its_restore_enable(void) * don't restore it since writing to CBASER or BASER<n> * registers is undefined according to the GIC v3 ITS * Specification. + * + * Firmware resuming with the ITS enabled is terminally broken. */ + WARN_ON(readl_relaxed(base + GITS_CTLR) & GITS_CTLR_ENABLE); ret = its_force_quiescent(base); if (ret) { pr_err("ITS@%pa: failed to quiesce on resume: %d\n", @@ -3558,9 +3551,6 @@ static int __init its_probe_one(struct resource *res, ctlr |= GITS_CTLR_ImDe; writel_relaxed(ctlr, its->base + GITS_CTLR);
- if (GITS_TYPER_HCC(typer)) - its->flags |= ITS_FLAGS_SAVE_SUSPEND_STATE; - err = its_init_domain(handle, its); if (err) goto out_free_tables;
From: Hao Si si.hao@zte.com.cn
[ Upstream commit 2663b3388551230cbc4606a40fabf3331ceb59e4 ]
The local variable 'cpumask_t mask' is in the stack memory, and its address is assigned to 'desc->affinity' in 'irq_set_affinity_hint()'. But the memory area where this variable is located is at risk of being modified.
During LTP testing, the following error was generated:
Unable to handle kernel paging request at virtual address ffff000012e9b790 Mem abort info: ESR = 0x96000007 Exception class = DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000007 CM = 0, WnR = 0 swapper pgtable: 4k pages, 48-bit VAs, pgdp = 0000000075ac5e07 [ffff000012e9b790] pgd=00000027dbffe003, pud=00000027dbffd003, pmd=00000027b6d61003, pte=0000000000000000 Internal error: Oops: 96000007 [#1] PREEMPT SMP Modules linked in: xt_conntrack Process read_all (pid: 20171, stack limit = 0x0000000044ea4095) CPU: 14 PID: 20171 Comm: read_all Tainted: G B W Hardware name: NXP Layerscape LX2160ARDB (DT) pstate: 80000085 (Nzcv daIf -PAN -UAO) pc : irq_affinity_hint_proc_show+0x54/0xb0 lr : irq_affinity_hint_proc_show+0x4c/0xb0 sp : ffff00001138bc10 x29: ffff00001138bc10 x28: 0000ffffd131d1e0 x27: 00000000007000c0 x26: ffff8025b9480dc0 x25: ffff8025b9480da8 x24: 00000000000003ff x23: ffff8027334f8300 x22: ffff80272e97d000 x21: ffff80272e97d0b0 x20: ffff8025b9480d80 x19: ffff000009a49000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000040 x11: 0000000000000000 x10: ffff802735b79b88 x9 : 0000000000000000 x8 : 0000000000000000 x7 : ffff000009a49848 x6 : 0000000000000003 x5 : 0000000000000000 x4 : ffff000008157d6c x3 : ffff00001138bc10 x2 : ffff000012e9b790 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: irq_affinity_hint_proc_show+0x54/0xb0 seq_read+0x1b0/0x440 proc_reg_read+0x80/0xd8 __vfs_read+0x60/0x178 vfs_read+0x94/0x150 ksys_read+0x74/0xf0 __arm64_sys_read+0x24/0x30 el0_svc_common.constprop.0+0xd8/0x1a0 el0_svc_handler+0x34/0x88 el0_svc+0x10/0x14 Code: f9001bbf 943e0732 f94066c2 b4000062 (f9400041) ---[ end trace b495bdcb0b3b732b ]--- Kernel panic - not syncing: Fatal exception SMP: stopping secondary CPUs SMP: failed to stop secondary CPUs 0,2-4,6,8,11,13-15 Kernel Offset: disabled CPU features: 0x0,21006008 Memory Limit: none ---[ end Kernel panic - not syncing: Fatal exception ]---
Fix it by using 'cpumask_of(cpu)' to get the cpumask.
Signed-off-by: Hao Si si.hao@zte.com.cn Signed-off-by: Lin Chen chen.lin5@zte.com.cn Signed-off-by: Yi Wang wang.yi59@zte.com.cn Signed-off-by: Li Yang leoyang.li@nxp.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/soc/fsl/dpio/dpio-driver.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/soc/fsl/dpio/dpio-driver.c b/drivers/soc/fsl/dpio/dpio-driver.c index b60b77bfaffae..ea6f8904c01b5 100644 --- a/drivers/soc/fsl/dpio/dpio-driver.c +++ b/drivers/soc/fsl/dpio/dpio-driver.c @@ -53,7 +53,6 @@ static int register_dpio_irq_handlers(struct fsl_mc_device *dpio_dev, int cpu) struct dpio_priv *priv; int error; struct fsl_mc_device_irq *irq; - cpumask_t mask;
priv = dev_get_drvdata(&dpio_dev->dev);
@@ -72,9 +71,7 @@ static int register_dpio_irq_handlers(struct fsl_mc_device *dpio_dev, int cpu) }
/* set the affinity hint */ - cpumask_clear(&mask); - cpumask_set_cpu(cpu, &mask); - if (irq_set_affinity_hint(irq->msi_desc->irq, &mask)) + if (irq_set_affinity_hint(irq->msi_desc->irq, cpumask_of(cpu))) dev_err(&dpio_dev->dev, "irq_set_affinity failed irq %d cpu %d\n", irq->msi_desc->irq, cpu);
From: Hans de Goede hdegoede@redhat.com
[ Upstream commit f2eae1888cf22590c38764b8fa3c989c0283870e ]
The Yoga 11e series has 2 accelerometers described by a BOSC0200 ACPI node. This setup relies on a Windows service which reads both accelerometers and then calculates the angle between the 2 halves to determine laptop / tent / tablet mode and then reports the calculated mode back to the EC by calling special ACPI methods on the BOSC0200 node.
The bmc150 iio driver does not support this (it involves double calculations requiring sqrt and arccos so this really needs to be done in userspace), as a result of this on the Yoga 11e the thinkpad_acpi code always reports SW_TABLET_MODE=0, starting with GNOME 3.38 reporting SW_TABLET_MODE=0 causes GNOME to:
1. Not show the onscreen keyboard when a text-input field is focussed with the touchscreen. 2. Disable accelerometer based auto display-rotation.
This makes sense when in laptop-mode but not when in tablet-mode. But since for the Yoga 11e the thinkpad_acpi code always reports SW_TABLET_MODE=0, GNOME does not know when the device is in tablet-mode.
Stop reporting the broken (always 0) SW_TABLET_MODE on Yoga 11e models to fix this.
Note there are plans for userspace to support 360 degree hinges style 2-in-1s with 2 accelerometers and figure out the mode by itself, see: https://gitlab.freedesktop.org/hadess/iio-sensor-proxy/-/issues/216
Signed-off-by: Hans de Goede hdegoede@redhat.com Link: https://lore.kernel.org/r/20201106140130.46820-1-hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/thinkpad_acpi.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 8cc01857bc5c0..79ac62d8ff7ba 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -3242,7 +3242,14 @@ static int hotkey_init_tablet_mode(void)
in_tablet_mode = hotkey_gmms_get_tablet_mode(res, &has_tablet_mode); - if (has_tablet_mode) + /* + * The Yoga 11e series has 2 accelerometers described by a + * BOSC0200 ACPI node. This setup relies on a Windows service + * which calls special ACPI methods on this node to report + * the laptop/tent/tablet mode to the EC. The bmc150 iio driver + * does not support this, so skip the hotkey on these models. + */ + if (has_tablet_mode && !acpi_dev_present("BOSC0200", "1", -1)) tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_GMMS; type = "GMMS"; } else if (acpi_evalf(hkey_handle, &res, "MHKG", "qd")) {
From: Hans de Goede hdegoede@redhat.com
[ Upstream commit c986a7024916c92a775fc8d853fba3cae1d5fde4 ]
The Thinkpad Yoga 11e 4th gen with the N3450 / Celeron CPU only has one battery which is named BAT1 instead of the expected BAT0, add a quirk for this. This fixes not being able to set the charging tresholds on this model; and this alsoe fixes the following errors in dmesg:
ACPI: _SB_.PCI0.LPCB.EC__.HKEY: BCTG evaluated but flagged as error thinkpad_acpi: Error probing battery 2 battery: extension failed to load: ThinkPad Battery Extension battery: extension unregistered: ThinkPad Battery Extension
Note that the added quirk is for the "R0K" BIOS versions which are used on the Thinkpad Yoga 11e 4th gen's with a Celeron CPU, there is a separate "R0L" BIOS for the i3/i5 based versions. This may also need the same quirk, but if that really is necessary is unknown.
Signed-off-by: Hans de Goede hdegoede@redhat.com Link: https://lore.kernel.org/r/20201109103550.16265-1-hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/thinkpad_acpi.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 79ac62d8ff7ba..a6e69f2495d23 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -9697,6 +9697,7 @@ static const struct tpacpi_quirk battery_quirk_table[] __initconst = { TPACPI_Q_LNV3('R', '0', 'B', true), /* Thinkpad 11e gen 3 */ TPACPI_Q_LNV3('R', '0', 'C', true), /* Thinkpad 13 */ TPACPI_Q_LNV3('R', '0', 'J', true), /* Thinkpad 13 gen 2 */ + TPACPI_Q_LNV3('R', '0', 'K', true), /* Thinkpad 11e gen 4 celeron BIOS */ };
static int __init tpacpi_battery_init(struct ibm_init_struct *ibm)
From: Timo Witte timo.witte@gmail.com
[ Upstream commit 9e7a005ad56aa7d6ea5830c5ffcc60bf35de380b ]
Got a dmesg message on my AMD Renoir based Acer laptop: "acer_wmi: Unknown key number - 0x84" when toggling keyboard background light
Signed-off-by: Timo Witte timo.witte@gmail.com Reviewed-by: "Lee, Chun-Yi" jlee@suse.com Link: https://lore.kernel.org/r/20200804001423.36778-1-timo.witte@gmail.com Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/acer-wmi.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index fcfeadd1301f4..92400abe35520 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -124,6 +124,7 @@ static const struct key_entry acer_wmi_keymap[] __initconst = { {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */ {KE_IGNORE, 0x81, {KEY_SLEEP} }, {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad Toggle */ + {KE_IGNORE, 0x84, {KEY_KBDILLUMTOGGLE} }, /* Automatic Keyboard background light toggle */ {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} }, {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} }, {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} },
From: Max Verevkin me@maxverevkin.tk
[ Upstream commit 8b205d3e1bf52ab31cdd5c55f87c87a227793d84 ]
The Pavilion 13 x360 PC has a chassis-type which does not indicate it is a convertible, while it is actually a convertible. Add it to the dmi_switches_allow_list.
Signed-off-by: Max Verevkin me@maxverevkin.tk Link: https://lore.kernel.org/r/20201124131652.11165-1-me@maxverevkin.tk Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/intel-vbtn.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c index 1e6b4661c7645..3aba207ee1745 100644 --- a/drivers/platform/x86/intel-vbtn.c +++ b/drivers/platform/x86/intel-vbtn.c @@ -197,6 +197,12 @@ static const struct dmi_system_id dmi_switches_allow_list[] = { DMI_MATCH(DMI_PRODUCT_NAME, "HP Stream x360 Convertible PC 11"), }, }, + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion 13 x360 PC"), + }, + }, {} /* Array terminator */ };
linux-stable-mirror@lists.linaro.org
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Sasha Levin