* drivers/iommu/intel/irq_remapping.c:674 iommu_disable_irq_remapping() warn: this loop depends on readl() succeeding
@ 2020-10-03 21:00 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2020-10-03 21:00 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 5200 bytes --]
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Joerg Roedel <jroedel@suse.de>
CC: Jerry Snitselaar <jsnitsel@redhat.com>
CC: Lu Baolu <baolu.lu@linux.intel.com>
Hi Joerg,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: d3d45f8220d60a0b2aaaacf8fb2be4e6ffd9008e
commit: 672cf6df9b8a3a6d70a6a5c30397f76fa40d3178 iommu/vt-d: Move Intel IOMMU driver into subdirectory
date: 4 months ago
:::::: branch date: 23 hours ago
:::::: commit date: 4 months ago
config: x86_64-randconfig-m001-20201003 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
drivers/iommu/intel/irq_remapping.c:674 iommu_disable_irq_remapping() warn: this loop depends on readl() succeeding
drivers/iommu/intel/irq_remapping.c:674 iommu_disable_irq_remapping() warn: this loop depends on readl() succeeding
vim +674 drivers/iommu/intel/irq_remapping.c
2ae21010694e564 drivers/pci/intr_remapping.c Suresh Siddha 2008-07-10 647
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 648 /*
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 649 * Disable Interrupt Remapping.
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 650 */
95a02e976c39d63 drivers/iommu/intel_intr_remapping.c Suresh Siddha 2012-03-30 651 static void iommu_disable_irq_remapping(struct intel_iommu *iommu)
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 652 {
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 653 unsigned long flags;
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 654 u32 sts;
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 655
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 656 if (!ecap_ir_support(iommu->ecap))
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 657 return;
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 658
b24696bc55f66fe drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 659 /*
b24696bc55f66fe drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 660 * global invalidation of interrupt entry cache before disabling
b24696bc55f66fe drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 661 * interrupt-remapping.
b24696bc55f66fe drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 662 */
b24696bc55f66fe drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 663 qi_global_iec(iommu);
b24696bc55f66fe drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 664
1f5b3c3fd2d73d6 drivers/iommu/intr_remapping.c Thomas Gleixner 2011-07-19 665 raw_spin_lock_irqsave(&iommu->register_lock, flags);
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 666
fda3bec12d0979a drivers/iommu/intel_irq_remapping.c CQ Tang 2016-01-13 667 sts = readl(iommu->reg + DMAR_GSTS_REG);
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 668 if (!(sts & DMA_GSTS_IRES))
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 669 goto end;
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 670
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 671 iommu->gcmd &= ~DMA_GCMD_IRE;
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 672 writel(iommu->gcmd, iommu->reg + DMAR_GCMD_REG);
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 673
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 @674 IOMMU_WAIT_OP(iommu, DMAR_GSTS_REG,
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 675 readl, !(sts & DMA_GSTS_IRES), sts);
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 676
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 677 end:
1f5b3c3fd2d73d6 drivers/iommu/intr_remapping.c Thomas Gleixner 2011-07-19 678 raw_spin_unlock_irqrestore(&iommu->register_lock, flags);
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 679 }
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 680
:::::: The code at line 674 was first introduced by commit
:::::: eba67e5da6e971993b2899d2cdf459ce77d3dbc5 x86, dmar: routines for disabling queued invalidation and intr remapping
:::::: TO: Suresh Siddha <suresh.b.siddha@intel.com>
:::::: CC: H. Peter Anvin <hpa@linux.intel.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 30373 bytes --]
^ permalink raw reply [flat|nested] 3+ messages in thread
* drivers/iommu/intel/irq_remapping.c:674 iommu_disable_irq_remapping() warn: this loop depends on readl() succeeding
@ 2020-11-09 16:40 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2020-11-09 16:40 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 5200 bytes --]
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Joerg Roedel <jroedel@suse.de>
CC: Jerry Snitselaar <jsnitsel@redhat.com>
CC: Lu Baolu <baolu.lu@linux.intel.com>
Hi Joerg,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: f8394f232b1eab649ce2df5c5f15b0e528c92091
commit: 672cf6df9b8a3a6d70a6a5c30397f76fa40d3178 iommu/vt-d: Move Intel IOMMU driver into subdirectory
date: 5 months ago
:::::: branch date: 17 hours ago
:::::: commit date: 5 months ago
config: x86_64-randconfig-m001-20201109 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
drivers/iommu/intel/irq_remapping.c:674 iommu_disable_irq_remapping() warn: this loop depends on readl() succeeding
drivers/iommu/intel/irq_remapping.c:674 iommu_disable_irq_remapping() warn: this loop depends on readl() succeeding
vim +674 drivers/iommu/intel/irq_remapping.c
2ae21010694e564 drivers/pci/intr_remapping.c Suresh Siddha 2008-07-10 647
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 648 /*
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 649 * Disable Interrupt Remapping.
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 650 */
95a02e976c39d63 drivers/iommu/intel_intr_remapping.c Suresh Siddha 2012-03-30 651 static void iommu_disable_irq_remapping(struct intel_iommu *iommu)
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 652 {
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 653 unsigned long flags;
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 654 u32 sts;
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 655
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 656 if (!ecap_ir_support(iommu->ecap))
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 657 return;
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 658
b24696bc55f66fe drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 659 /*
b24696bc55f66fe drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 660 * global invalidation of interrupt entry cache before disabling
b24696bc55f66fe drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 661 * interrupt-remapping.
b24696bc55f66fe drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 662 */
b24696bc55f66fe drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 663 qi_global_iec(iommu);
b24696bc55f66fe drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 664
1f5b3c3fd2d73d6 drivers/iommu/intr_remapping.c Thomas Gleixner 2011-07-19 665 raw_spin_lock_irqsave(&iommu->register_lock, flags);
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 666
fda3bec12d0979a drivers/iommu/intel_irq_remapping.c CQ Tang 2016-01-13 667 sts = readl(iommu->reg + DMAR_GSTS_REG);
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 668 if (!(sts & DMA_GSTS_IRES))
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 669 goto end;
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 670
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 671 iommu->gcmd &= ~DMA_GCMD_IRE;
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 672 writel(iommu->gcmd, iommu->reg + DMAR_GCMD_REG);
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 673
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 @674 IOMMU_WAIT_OP(iommu, DMAR_GSTS_REG,
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 675 readl, !(sts & DMA_GSTS_IRES), sts);
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 676
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 677 end:
1f5b3c3fd2d73d6 drivers/iommu/intr_remapping.c Thomas Gleixner 2011-07-19 678 raw_spin_unlock_irqrestore(&iommu->register_lock, flags);
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 679 }
eba67e5da6e9719 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 680
:::::: The code at line 674 was first introduced by commit
:::::: eba67e5da6e971993b2899d2cdf459ce77d3dbc5 x86, dmar: routines for disabling queued invalidation and intr remapping
:::::: TO: Suresh Siddha <suresh.b.siddha@intel.com>
:::::: CC: H. Peter Anvin <hpa@linux.intel.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 45890 bytes --]
^ permalink raw reply [flat|nested] 3+ messages in thread
* drivers/iommu/intel/irq_remapping.c:674 iommu_disable_irq_remapping() warn: this loop depends on readl() succeeding
@ 2020-07-12 8:53 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2020-07-12 8:53 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 5455 bytes --]
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Joerg Roedel <jroedel@suse.de>
CC: Jerry Snitselaar <jsnitsel@redhat.com>
CC: Lu Baolu <baolu.lu@linux.intel.com>
Hi Joerg,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0aea6d5c5be33ce94c16f9ab2f64de1f481f424b
commit: 672cf6df9b8a3a6d70a6a5c30397f76fa40d3178 iommu/vt-d: Move Intel IOMMU driver into subdirectory
date: 5 weeks ago
:::::: branch date: 15 hours ago
:::::: commit date: 5 weeks ago
config: x86_64-randconfig-m001-20200712 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
drivers/iommu/intel/irq_remapping.c:674 iommu_disable_irq_remapping() warn: this loop depends on readl() succeeding
drivers/iommu/intel/irq_remapping.c:674 iommu_disable_irq_remapping() warn: this loop depends on readl() succeeding
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=672cf6df9b8a3a6d70a6a5c30397f76fa40d3178
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git remote update linus
git checkout 672cf6df9b8a3a6d70a6a5c30397f76fa40d3178
vim +674 drivers/iommu/intel/irq_remapping.c
2ae21010694e56 drivers/pci/intr_remapping.c Suresh Siddha 2008-07-10 647
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 648 /*
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 649 * Disable Interrupt Remapping.
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 650 */
95a02e976c39d6 drivers/iommu/intel_intr_remapping.c Suresh Siddha 2012-03-30 651 static void iommu_disable_irq_remapping(struct intel_iommu *iommu)
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 652 {
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 653 unsigned long flags;
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 654 u32 sts;
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 655
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 656 if (!ecap_ir_support(iommu->ecap))
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 657 return;
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 658
b24696bc55f66f drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 659 /*
b24696bc55f66f drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 660 * global invalidation of interrupt entry cache before disabling
b24696bc55f66f drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 661 * interrupt-remapping.
b24696bc55f66f drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 662 */
b24696bc55f66f drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 663 qi_global_iec(iommu);
b24696bc55f66f drivers/pci/intr_remapping.c Fenghua Yu 2009-03-27 664
1f5b3c3fd2d73d drivers/iommu/intr_remapping.c Thomas Gleixner 2011-07-19 665 raw_spin_lock_irqsave(&iommu->register_lock, flags);
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 666
fda3bec12d0979 drivers/iommu/intel_irq_remapping.c CQ Tang 2016-01-13 667 sts = readl(iommu->reg + DMAR_GSTS_REG);
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 668 if (!(sts & DMA_GSTS_IRES))
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 669 goto end;
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 670
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 671 iommu->gcmd &= ~DMA_GCMD_IRE;
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 672 writel(iommu->gcmd, iommu->reg + DMAR_GCMD_REG);
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 673
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 @674 IOMMU_WAIT_OP(iommu, DMAR_GSTS_REG,
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 675 readl, !(sts & DMA_GSTS_IRES), sts);
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 676
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 677 end:
1f5b3c3fd2d73d drivers/iommu/intr_remapping.c Thomas Gleixner 2011-07-19 678 raw_spin_unlock_irqrestore(&iommu->register_lock, flags);
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 679 }
eba67e5da6e971 drivers/pci/intr_remapping.c Suresh Siddha 2009-03-16 680
:::::: The code at line 674 was first introduced by commit
:::::: eba67e5da6e971993b2899d2cdf459ce77d3dbc5 x86, dmar: routines for disabling queued invalidation and intr remapping
:::::: TO: Suresh Siddha <suresh.b.siddha@intel.com>
:::::: CC: H. Peter Anvin <hpa@linux.intel.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 30706 bytes --]
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2020-11-09 16:40 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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