Re: [linux-yocto] [PATCH] powerpc/603: Fix handling of the DIRTY flag
In message: [linux-yocto][PATCH] powerpc/603: Fix handling of the DIRTY flag
on 24/09/2019 zhe...@windriver.com wrote:
> From: Christophe Leroy
>
> commit 415480dce2ef03bb8335deebd2f402f475443ce0 upstream
>
> If a page is already mapped RW without the DIRTY flag, the DIRTY
> flag is never set and a TLB store miss exception is taken forever.
>
> This is easily reproduced with the following app:
>
> void main(void)
> {
> volatile char *ptr = mmap(0, 4096, PROT_READ | PROT_WRITE, MAP_SHARED |
> MAP_ANONYMOUS, -1, 0);
>
> *ptr = *ptr;
> }
>
> When DIRTY flag is not set, bail out of TLB miss handler and take
> a minor page fault which will set the DIRTY flag.
>
> Fixes: f8b58c64eaef ("powerpc/603: let's handle PAGE_DIRTY directly")
> Cc: sta...@vger.kernel.org # v5.1+
> Reported-by: Doug Crawford
> Signed-off-by: Christophe Leroy
> Signed-off-by: Michael Ellerman
> Link:
> https://lore.kernel.org/r/80432f71194d7ee75b2f5043ecf1501cf1cca1f3.1566196646.git.christophe.le...@c-s.fr
> Signed-off-by: He Zhe
> ---
> This is for v5.2/standard/fsl-mpc8315e-rdb. It fixes potential system hang
> without any direct warning or error which has not been observed on qemuppc.
>
> It has not been ported to stable tree.
but at least is has been cc'd to stable. I'll watch for it to show up in my
future 5.2 -stabe updates.
Cheers,
Bruce
>
> arch/powerpc/kernel/head_32.S | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
> index f255e22..534dd27 100644
> --- a/arch/powerpc/kernel/head_32.S
> +++ b/arch/powerpc/kernel/head_32.S
> @@ -557,9 +557,9 @@ DataStoreTLBMiss:
> cmplw 0,r1,r3
> mfspr r2, SPRN_SPRG_PGDIR
> #ifdef CONFIG_SWAP
> - li r1, _PAGE_RW | _PAGE_PRESENT | _PAGE_ACCESSED
> + li r1, _PAGE_RW | _PAGE_DIRTY | _PAGE_PRESENT | _PAGE_ACCESSED
> #else
> - li r1, _PAGE_RW | _PAGE_PRESENT
> + li r1, _PAGE_RW | _PAGE_DIRTY | _PAGE_PRESENT
> #endif
> bge-112f
> lis r2, (swapper_pg_dir - PAGE_OFFSET)@ha /* if kernel address,
> use */
> --
> 2.7.4
>
--
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Re: [linux-yocto] [kernel-cache][PATCH 0/1] xilinx-zynq: enable coresight and xadc kernel options for xilinx-zynq bsp
In message: [linux-yocto][kernel-cache][PATCH 0/1] xilinx-zynq: enable coresight and xadc kernel options for xilinx-zynq bsp on 23/09/2019 quanyang.w...@windriver.com wrote: > From: Quanyang Wang > > Hi Bruce, > > Would you please help merge this patch to yocto-kernel-cache's branch > yocto-5.2 ? merged. Bruce > > Thanks, > Quanyang > > Quanyang Wang (1): > xilinx-zynq: enable coresight and xadc kernel options for xilinx-zynq > bsp > > bsp/xilinx-zynq/xilinx-zynq.cfg | 9 + > 1 file changed, 9 insertions(+) > > -- > 2.17.1 > -- ___ linux-yocto mailing list linux-yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/linux-yocto
Re: [linux-yocto] [kernel v5.2/standard/xlnx-soc][PATCH 0/3] patches for zynq7000
In message: [linux-yocto][kernel v5.2/standard/xlnx-soc][PATCH 0/3] patches for zynq7000 on 23/09/2019 quanyang.w...@windriver.com wrote: > From: Quanyang Wang > > Hi Bruce, > > Would you please help merge these patches to linux-yocto > v5.2/standard/xlnx-soc branch? These are now merged. Are these changes already done upstream, or applicable to upstream ? I just want to make sure we aren't only fixes these in the yocto kernel when there are other places that we can fix as well. Bruce > > Thanks, > Quanyang > > Quanyang Wang (2): > ARM: dts: zc702: Fix I2C bus warnings > mmc: sdhci-of-arasan: Fix the incorrect soft reset operation when > runtime resuming > > Zumeng Chen (1): > arm: dts: zynq: enablement of coresight topology > > arch/arm/boot/dts/zynq-7000.dtsi | 155 + > arch/arm/boot/dts/zynq-zc702.dts | 12 +-- > drivers/mmc/host/sdhci-of-arasan.c | 2 +- > 3 files changed, 162 insertions(+), 7 deletions(-) > > -- > 2.17.1 > -- ___ linux-yocto mailing list linux-yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/linux-yocto
Re: [linux-yocto] [PATCH v5.2] cn96xx: Another patch series for the cn96xx SoC support
In message: [PATCH v5.2] cn96xx: Another patch series for the cn96xx SoC support on 23/09/2019 Kevin Hao wrote: > Hi Bruce, > > Here is another patch series got from Marvell for the cn96xx SoC support. > It mainly include some fixes for the mmc and Ethernet. Please help me > merge this into both v5.2/standard/cn96xx and v5.2/standard/preempt-rt/cn96xx > branch. > > The following changes since commit d186856ba1914ca0fbf715fe9b0f31067dd517a4: > > mmc: cavium: Drop the aligned check for the dma address (2019-09-20 > 00:23:49 -0400) > > are available in the Git repository at: > > https://github.com/haokexin/linux v5.2/standard/cn96xx merged To ssh://git.yoctoproject.org/linux-yocto.git d186856ba191..8ddd7904ae8f v5.2/standard/cn96xx -> v5.2/standard/cn96xx 11c5ad93ebda..07da8f9ebdf6 v5.2/standard/preempt-rt/cn96xx -> v5.2/standard/preempt-rt/cn96xx Bruce > > for you to fetch changes up to 8ddd7904ae8f42c95c7b13bb877e663d39e802ac: > > octeontx2-af: Add T98 devid to PTP id table (2019-09-23 17:02:17 +0800) > > > Christina Jacob (2): > octeontx2-pf: Disply the link detected status in ethtool command > net: thunderx: Do a PCS reset upon SGMII link toggle > > Geetha sowjanya (1): > octeontx2-pf: Ignore NPC parser layer errors > > Hao Zheng (2): > octeontx2-af: add parser support for DSA, extended DSA and eDSA > octeontx2-af: combine LB_STAG and LB_QINQ to one LB ltype > > Peter Swain (4): > mmc: cavium: reorganize before vqmmc switching > mmc: cavium: slot switch by vqmmc/gpio > mmc: cavium: do not drop bus lock in tuning > mmc: cavium: use calibrated timing taps > > Subbaraya Sundeep (8): > octeontx2-pf: Fix memory leaks > octeontx2-af: Change message level to debug > octeontx2-af: Enable odd number of AF VFs also > octeontx2-pf: Use helper function for LBK VF > octeontx2-af: Use nix_smq_flush function > octeontx2-af: Always enable mcam rules for TX > octeontx2-af: Transmit packets during SMQ flush > octeontx2-pf: Add barrier to sync interface status > > Sunil Goutham (8): > octeontx2-af: Fix programming and logical issues > octeontx2-pf: Fix VF id in the FLR handler > octeontx2-pf: Fix interface init and shutdown sequence > octeontx2-pf: Use post increment STP to free pointers to Aura > octeontx2-pf: Add debug messages for MSIX alloc failure > arm64: Increase NR_IRQS to a large number > octeontx2-af: Fix compilation issue > octeontx2-pf: Fix memory leak while freeing SQBs > > Tomasz Michalec (1): > octeontx2-af: Add T98 devid to PTP id table > > Vidhya Vidhyaraman (1): > octeontx2-af: Add programmed macaddr to RVU pfvf > > Documentation/devicetree/bindings/mmc/cavium-mmc.txt | 10 +- > arch/arm64/include/asm/irq.h | 9 ++ > drivers/mmc/host/cavium-thunderx.c| 97 ++--- > drivers/mmc/host/cavium.c | 227 > - > drivers/mmc/host/cavium.h | 7 +- > drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 35 ++--- > drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 6 +- > drivers/net/ethernet/marvell/octeontx2/af/mbox.c | 2 +- > drivers/net/ethernet/marvell/octeontx2/af/npc.h | 9 +- > drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h | 731 > +--- > drivers/net/ethernet/marvell/octeontx2/af/ptp.c | 4 + > drivers/net/ethernet/marvell/octeontx2/af/rvu.c | 12 -- > drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c | 26 ++-- > drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c | 23 ++- > drivers/net/ethernet/marvell/octeontx2/af/rvu_fixes.c | 14 ++ > drivers/net/ethernet/marvell/octeontx2/af/rvu_fixes.h | 21 +++ > drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c | 26 ++-- > drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c | 17 +-- > drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c| 15 +- > drivers/net/ethernet/marvell/octeontx2/nic/Makefile | 2 +- > drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c | 49 ++- > drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h | 29 ++-- > drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c | 33 - > drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c | 57 +--- > drivers/net/ethernet/marvell/octeontx2/nic/otx2_smqvf.c | 291 > + > drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c| 9 ++ > drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.h| 6 +- > drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c | 32 ++-- > 28
