From: Will Deacon <will.deacon@arm.com> To: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Will Deacon <will.deacon@arm.com>, "Paul E. McKenney" <paulmck@linux.ibm.com>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Michael Ellerman <mpe@ellerman.id.au>, Arnd Bergmann <arnd@arndb.de>, Peter Zijlstra <peterz@infradead.org>, Andrea Parri <andrea.parri@amarulasolutions.com>, Palmer Dabbelt <palmer@sifive.com>, Daniel Lustig <dlustig@nvidia.com>, David Howells <dhowells@redhat.com>, Alan Stern <stern@rowland.harvard.edu>, Linus Torvalds <torvalds@linux-foundation.org>, "Maciej W. Rozycki" <macro@linux-mips.org>, Paul Burton <paul.burton@mips.com>, Ingo Molnar <mingo@kernel.org>, Yoshinori Sato <ysato@users.sourceforge.jp>, Rich Felker <dalias@libc.org>, Tony Luck <tony.luck@intel.com>, Mikulas Patocka <mpatocka@redhat.com>, Akira Yokosawa <akiyks@gmail.com>, Luis Chamberlain <mcgrof@kernel.org>, Nicholas Piggin <npiggin@gmail.com> Subject: [PATCH v2 00/21] Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb()) Date: Fri, 5 Apr 2019 14:59:15 +0100 [thread overview] Message-ID: <20190405135936.7266-1-will.deacon@arm.com> (raw) Hi everybody, This is version two of the patches I previously posted here: RFC: https://lwn.net/ml/linux-kernel/20190222185026.10973-1-will.deacon@arm.com/ v1: https://lkml.kernel.org/r/20190301140348.25175-1-will.deacon@arm.com I would really appreciate review comments and/or Acks on the first patch, since it was that change which triggered the rest of the series and, without an ack, it's holding the rest of the patches up. Changes since v1 include: * Move mmiowb_spin_{lock,unlock}() calls into the critical section * Included memory-barriers.txt patch on which this lot depends * Added acks * Based on v5.1-rc3 I've also pushed this series out here: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/mmiowb and I would like to get it into -next once the first patch has been acked. Cheers, Will Cc: "Paul E. McKenney" <paulmck@linux.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andrea Parri <andrea.parri@amarulasolutions.com> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Daniel Lustig <dlustig@nvidia.com> Cc: David Howells <dhowells@redhat.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: "Maciej W. Rozycki" <macro@linux-mips.org> Cc: Paul Burton <paul.burton@mips.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Rich Felker <dalias@libc.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Mikulas Patocka <mpatocka@redhat.com> Cc: Akira Yokosawa <akiyks@gmail.com> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Nicholas Piggin <npiggin@gmail.com> --->8 Will Deacon (21): docs/memory-barriers.txt: Rewrite "KERNEL I/O BARRIER EFFECTS" section asm-generic/mmiowb: Add generic implementation of mmiowb() tracking arch: Use asm-generic header for asm/mmiowb.h mmiowb: Hook up mmiowb helpers to spinlocks and generic I/O accessors ARM/io: Remove useless definition of mmiowb() arm64/io: Remove useless definition of mmiowb() x86/io: Remove useless definition of mmiowb() nds32/io: Remove useless definition of mmiowb() m68k/io: Remove useless definition of mmiowb() sh/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() mips/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() ia64/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() powerpc/mmiowb: Hook up mmwiob() implementation to asm-generic code riscv/mmiowb: Hook up mmwiob() implementation to asm-generic code Documentation: Kill all references to mmiowb() drivers: Remove useless trailing comments from mmiowb() invocations drivers: Remove explicit invocations of mmiowb() scsi/qla1280: Remove stale comment about mmiowb() i40iw: Redefine i40iw_mmiowb() to do nothing net/ethernet/silan/sc92031: Remove stale comment about mmiowb() arch: Remove dummy mmiowb() definitions from arch code Documentation/driver-api/device-io.rst | 45 ----- Documentation/driver-api/pci/p2pdma.rst | 4 - Documentation/memory-barriers.txt | 212 +++++++-------------- arch/alpha/include/asm/Kbuild | 1 + arch/alpha/include/asm/io.h | 2 - arch/arc/include/asm/Kbuild | 1 + arch/arm/include/asm/Kbuild | 1 + arch/arm/include/asm/io.h | 2 - arch/arm64/include/asm/Kbuild | 1 + arch/arm64/include/asm/io.h | 2 - arch/c6x/include/asm/Kbuild | 1 + arch/csky/include/asm/Kbuild | 1 + arch/h8300/include/asm/Kbuild | 1 + arch/hexagon/include/asm/Kbuild | 1 + arch/hexagon/include/asm/io.h | 2 - arch/ia64/include/asm/io.h | 17 -- arch/ia64/include/asm/mmiowb.h | 25 +++ arch/ia64/include/asm/spinlock.h | 2 + arch/m68k/include/asm/Kbuild | 1 + arch/m68k/include/asm/io_mm.h | 2 - arch/microblaze/include/asm/Kbuild | 1 + arch/mips/include/asm/io.h | 3 - arch/mips/include/asm/mmiowb.h | 11 ++ arch/mips/include/asm/spinlock.h | 15 ++ arch/nds32/include/asm/Kbuild | 1 + arch/nds32/include/asm/io.h | 2 - arch/nios2/include/asm/Kbuild | 1 + arch/openrisc/include/asm/Kbuild | 1 + arch/parisc/include/asm/Kbuild | 1 + arch/parisc/include/asm/io.h | 2 - arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/io.h | 33 +--- arch/powerpc/include/asm/mmiowb.h | 18 ++ arch/powerpc/include/asm/paca.h | 6 +- arch/powerpc/include/asm/spinlock.h | 17 -- arch/powerpc/xmon/xmon.c | 5 +- arch/riscv/Kconfig | 1 + arch/riscv/include/asm/io.h | 15 +- arch/riscv/include/asm/mmiowb.h | 14 ++ arch/s390/include/asm/Kbuild | 1 + arch/sh/include/asm/io.h | 3 - arch/sh/include/asm/mmiowb.h | 12 ++ arch/sh/include/asm/spinlock-llsc.h | 2 + arch/sparc/include/asm/Kbuild | 1 + arch/sparc/include/asm/io_64.h | 2 - arch/um/include/asm/Kbuild | 1 + arch/unicore32/include/asm/Kbuild | 1 + arch/x86/include/asm/Kbuild | 1 + arch/x86/include/asm/io.h | 2 - arch/xtensa/include/asm/Kbuild | 1 + drivers/crypto/cavium/nitrox/nitrox_reqmgr.c | 4 - drivers/dma/txx9dmac.c | 3 - drivers/firewire/ohci.c | 1 - drivers/gpu/drm/i915/intel_hdmi.c | 10 - drivers/ide/tx4939ide.c | 2 - drivers/infiniband/hw/hfi1/chip.c | 3 - drivers/infiniband/hw/hfi1/pio.c | 1 - drivers/infiniband/hw/hns/hns_roce_hw_v1.c | 2 - drivers/infiniband/hw/i40iw/i40iw_osdep.h | 2 +- drivers/infiniband/hw/mlx4/qp.c | 6 - drivers/infiniband/hw/mlx5/qp.c | 1 - drivers/infiniband/hw/mthca/mthca_cmd.c | 6 - drivers/infiniband/hw/mthca/mthca_cq.c | 5 - drivers/infiniband/hw/mthca/mthca_qp.c | 17 -- drivers/infiniband/hw/mthca/mthca_srq.c | 6 - drivers/infiniband/hw/qedr/verbs.c | 12 -- drivers/infiniband/hw/qib/qib_iba6120.c | 4 - drivers/infiniband/hw/qib/qib_iba7220.c | 3 - drivers/infiniband/hw/qib/qib_iba7322.c | 3 - drivers/infiniband/hw/qib/qib_sd7220.c | 4 - drivers/media/pci/dt3155/dt3155.c | 8 - drivers/memstick/host/jmb38x_ms.c | 4 - drivers/misc/ioc4.c | 2 - drivers/misc/mei/hw-me.c | 3 - drivers/misc/tifm_7xx1.c | 1 - drivers/mmc/host/alcor.c | 1 - drivers/mmc/host/sdhci.c | 13 -- drivers/mmc/host/tifm_sd.c | 3 - drivers/mmc/host/via-sdmmc.c | 10 - drivers/mtd/nand/raw/r852.c | 2 - drivers/mtd/nand/raw/txx9ndfmc.c | 1 - drivers/net/ethernet/aeroflex/greth.c | 1 - drivers/net/ethernet/alacritech/slicoss.c | 4 - drivers/net/ethernet/amazon/ena/ena_com.c | 1 - drivers/net/ethernet/atheros/atlx/atl1.c | 1 - drivers/net/ethernet/atheros/atlx/atl2.c | 1 - drivers/net/ethernet/broadcom/bnx2.c | 4 - drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 2 - drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h | 4 - .../net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c | 1 - drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 29 --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c | 1 - drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 2 - drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c | 4 - drivers/net/ethernet/broadcom/bnxt/bnxt.c | 3 - drivers/net/ethernet/broadcom/tg3.c | 6 - .../net/ethernet/cavium/liquidio/cn66xx_device.c | 10 - .../net/ethernet/cavium/liquidio/octeon_device.c | 1 - drivers/net/ethernet/cavium/liquidio/octeon_droq.c | 4 - .../net/ethernet/cavium/liquidio/request_manager.c | 1 - drivers/net/ethernet/intel/e1000/e1000_main.c | 5 - drivers/net/ethernet/intel/e1000e/netdev.c | 7 - drivers/net/ethernet/intel/fm10k/fm10k_iov.c | 2 - drivers/net/ethernet/intel/fm10k/fm10k_main.c | 5 - drivers/net/ethernet/intel/i40e/i40e_txrx.c | 5 - drivers/net/ethernet/intel/iavf/iavf_txrx.c | 5 - drivers/net/ethernet/intel/ice/ice_txrx.c | 5 - drivers/net/ethernet/intel/igb/igb_main.c | 5 - drivers/net/ethernet/intel/igbvf/netdev.c | 4 - drivers/net/ethernet/intel/igc/igc_main.c | 5 - drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 5 - drivers/net/ethernet/marvell/sky2.c | 4 - drivers/net/ethernet/mellanox/mlx4/catas.c | 4 - drivers/net/ethernet/mellanox/mlx4/cmd.c | 13 -- drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 1 - drivers/net/ethernet/myricom/myri10ge/myri10ge.c | 2 - drivers/net/ethernet/neterion/s2io.c | 2 - drivers/net/ethernet/neterion/vxge/vxge-main.c | 5 - drivers/net/ethernet/neterion/vxge/vxge-traffic.c | 4 - drivers/net/ethernet/qlogic/qed/qed_int.c | 13 -- drivers/net/ethernet/qlogic/qed/qed_spq.c | 3 - drivers/net/ethernet/qlogic/qede/qede_ethtool.c | 8 - drivers/net/ethernet/qlogic/qede/qede_fp.c | 8 - drivers/net/ethernet/qlogic/qla3xxx.c | 1 - drivers/net/ethernet/qlogic/qlge/qlge.h | 1 - drivers/net/ethernet/qlogic/qlge/qlge_main.c | 1 - drivers/net/ethernet/renesas/ravb_main.c | 9 - drivers/net/ethernet/renesas/ravb_ptp.c | 3 - drivers/net/ethernet/renesas/sh_eth.c | 1 - drivers/net/ethernet/sfc/falcon/io.h | 2 - drivers/net/ethernet/sfc/io.h | 2 - drivers/net/ethernet/silan/sc92031.c | 15 -- drivers/net/ethernet/via/via-rhine.c | 3 - drivers/net/ethernet/wiznet/w5100.c | 6 - drivers/net/ethernet/wiznet/w5300.c | 15 -- drivers/net/wireless/ath/ath5k/base.c | 4 - drivers/net/wireless/ath/ath5k/mac80211-ops.c | 2 - drivers/net/wireless/broadcom/b43/main.c | 7 - drivers/net/wireless/broadcom/b43/sysfs.c | 1 - drivers/net/wireless/broadcom/b43legacy/ilt.c | 2 - drivers/net/wireless/broadcom/b43legacy/main.c | 20 -- drivers/net/wireless/broadcom/b43legacy/phy.c | 1 - drivers/net/wireless/broadcom/b43legacy/pio.h | 1 - drivers/net/wireless/broadcom/b43legacy/radio.c | 4 - drivers/net/wireless/broadcom/b43legacy/sysfs.c | 1 - drivers/net/wireless/intel/iwlegacy/common.h | 7 - drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 1 - drivers/ntb/hw/idt/ntb_hw_idt.c | 7 - drivers/ntb/test/ntb_perf.c | 3 - drivers/scsi/bfa/bfa.h | 3 +- drivers/scsi/bfa/bfa_hw_cb.c | 2 - drivers/scsi/bfa/bfa_hw_ct.c | 2 - drivers/scsi/bnx2fc/bnx2fc_hwi.c | 2 - drivers/scsi/bnx2i/bnx2i_hwi.c | 3 - drivers/scsi/megaraid/megaraid_sas_base.c | 1 - drivers/scsi/megaraid/megaraid_sas_fusion.c | 1 - drivers/scsi/mpt3sas/mpt3sas_base.c | 1 - drivers/scsi/qedf/qedf_io.c | 1 - drivers/scsi/qedi/qedi_fw.c | 1 - drivers/scsi/qla1280.c | 15 -- drivers/ssb/pci.c | 1 - drivers/ssb/pcmcia.c | 4 - drivers/staging/comedi/drivers/mite.c | 3 - drivers/staging/comedi/drivers/ni_660x.c | 2 - drivers/staging/comedi/drivers/ni_mio_common.c | 1 - drivers/staging/comedi/drivers/ni_pcidio.c | 2 - drivers/staging/comedi/drivers/ni_tio.c | 1 - drivers/staging/comedi/drivers/s626.c | 2 - drivers/tty/serial/men_z135_uart.c | 1 - drivers/tty/serial/serial_txx9.c | 1 - drivers/usb/early/xhci-dbc.c | 4 - drivers/usb/host/xhci-dbgcap.c | 2 - include/asm-generic/io.h | 7 +- include/asm-generic/mmiowb.h | 63 ++++++ include/asm-generic/mmiowb_types.h | 12 ++ include/linux/qed/qed_if.h | 2 - include/linux/spinlock.h | 11 +- kernel/Kconfig.locks | 7 + kernel/locking/spinlock.c | 7 + kernel/locking/spinlock_debug.c | 6 +- sound/soc/txx9/txx9aclc-ac97.c | 1 - 181 files changed, 314 insertions(+), 820 deletions(-) create mode 100644 arch/ia64/include/asm/mmiowb.h create mode 100644 arch/mips/include/asm/mmiowb.h create mode 100644 arch/powerpc/include/asm/mmiowb.h create mode 100644 arch/riscv/include/asm/mmiowb.h create mode 100644 arch/sh/include/asm/mmiowb.h create mode 100644 include/asm-generic/mmiowb.h create mode 100644 include/asm-generic/mmiowb_types.h -- 2.11.0
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will.deacon@arm.com> To: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Will Deacon <will.deacon@arm.com>, "Paul E. McKenney" <paulmck@linux.ibm.com>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Michael Ellerman <mpe@ellerman.id.au>, Arnd Bergmann <arnd@arndb.de>, Peter Zijlstra <peterz@infradead.org>, Andrea Parri <andrea.parri@amarulasolutions.com>, Palmer Dabbelt <palmer@sifive.com>, Daniel Lustig <dlustig@nvidia.com>, David Howells <dhowells@redhat.com>, Alan Stern <stern@rowland.harvard.edu>, Linus Torvalds <torvalds@linux-foundation.org>, "Maciej W. Rozycki" <macro@linux-mips.org>, Paul Burton <paul.burton@mips.com>, Ingo Molnar <mingo@kernel.org>, Yoshinori Sato <ysato@users.sourceforge.jp>, Rich Felker <dalias@libc.org>, Tony Luck <tony.luck@intel.com>, Mikulas Patocka <mpatoc> Subject: [PATCH v2 00/21] Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb()) Date: Fri, 5 Apr 2019 14:59:15 +0100 [thread overview] Message-ID: <20190405135936.7266-1-will.deacon@arm.com> (raw) Hi everybody, This is version two of the patches I previously posted here: RFC: https://lwn.net/ml/linux-kernel/20190222185026.10973-1-will.deacon@arm.com/ v1: https://lkml.kernel.org/r/20190301140348.25175-1-will.deacon@arm.com I would really appreciate review comments and/or Acks on the first patch, since it was that change which triggered the rest of the series and, without an ack, it's holding the rest of the patches up. Changes since v1 include: * Move mmiowb_spin_{lock,unlock}() calls into the critical section * Included memory-barriers.txt patch on which this lot depends * Added acks * Based on v5.1-rc3 I've also pushed this series out here: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/mmiowb and I would like to get it into -next once the first patch has been acked. Cheers, Will Cc: "Paul E. McKenney" <paulmck@linux.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andrea Parri <andrea.parri@amarulasolutions.com> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Daniel Lustig <dlustig@nvidia.com> Cc: David Howells <dhowells@redhat.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: "Maciej W. Rozycki" <macro@linux-mips.org> Cc: Paul Burton <paul.burton@mips.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Rich Felker <dalias@libc.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Mikulas Patocka <mpatocka@redhat.com> Cc: Akira Yokosawa <akiyks@gmail.com> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Nicholas Piggin <npiggin@gmail.com> --->8 Will Deacon (21): docs/memory-barriers.txt: Rewrite "KERNEL I/O BARRIER EFFECTS" section asm-generic/mmiowb: Add generic implementation of mmiowb() tracking arch: Use asm-generic header for asm/mmiowb.h mmiowb: Hook up mmiowb helpers to spinlocks and generic I/O accessors ARM/io: Remove useless definition of mmiowb() arm64/io: Remove useless definition of mmiowb() x86/io: Remove useless definition of mmiowb() nds32/io: Remove useless definition of mmiowb() m68k/io: Remove useless definition of mmiowb() sh/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() mips/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() ia64/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() powerpc/mmiowb: Hook up mmwiob() implementation to asm-generic code riscv/mmiowb: Hook up mmwiob() implementation to asm-generic code Documentation: Kill all references to mmiowb() drivers: Remove useless trailing comments from mmiowb() invocations drivers: Remove explicit invocations of mmiowb() scsi/qla1280: Remove stale comment about mmiowb() i40iw: Redefine i40iw_mmiowb() to do nothing net/ethernet/silan/sc92031: Remove stale comment about mmiowb() arch: Remove dummy mmiowb() definitions from arch code Documentation/driver-api/device-io.rst | 45 ----- Documentation/driver-api/pci/p2pdma.rst | 4 - Documentation/memory-barriers.txt | 212 +++++++-------------- arch/alpha/include/asm/Kbuild | 1 + arch/alpha/include/asm/io.h | 2 - arch/arc/include/asm/Kbuild | 1 + arch/arm/include/asm/Kbuild | 1 + arch/arm/include/asm/io.h | 2 - arch/arm64/include/asm/Kbuild | 1 + arch/arm64/include/asm/io.h | 2 - arch/c6x/include/asm/Kbuild | 1 + arch/csky/include/asm/Kbuild | 1 + arch/h8300/include/asm/Kbuild | 1 + arch/hexagon/include/asm/Kbuild | 1 + arch/hexagon/include/asm/io.h | 2 - arch/ia64/include/asm/io.h | 17 -- arch/ia64/include/asm/mmiowb.h | 25 +++ arch/ia64/include/asm/spinlock.h | 2 + arch/m68k/include/asm/Kbuild | 1 + arch/m68k/include/asm/io_mm.h | 2 - arch/microblaze/include/asm/Kbuild | 1 + arch/mips/include/asm/io.h | 3 - arch/mips/include/asm/mmiowb.h | 11 ++ arch/mips/include/asm/spinlock.h | 15 ++ arch/nds32/include/asm/Kbuild | 1 + arch/nds32/include/asm/io.h | 2 - arch/nios2/include/asm/Kbuild | 1 + arch/openrisc/include/asm/Kbuild | 1 + arch/parisc/include/asm/Kbuild | 1 + arch/parisc/include/asm/io.h | 2 - arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/io.h | 33 +--- arch/powerpc/include/asm/mmiowb.h | 18 ++ arch/powerpc/include/asm/paca.h | 6 +- arch/powerpc/include/asm/spinlock.h | 17 -- arch/powerpc/xmon/xmon.c | 5 +- arch/riscv/Kconfig | 1 + arch/riscv/include/asm/io.h | 15 +- arch/riscv/include/asm/mmiowb.h | 14 ++ arch/s390/include/asm/Kbuild | 1 + arch/sh/include/asm/io.h | 3 - arch/sh/include/asm/mmiowb.h | 12 ++ arch/sh/include/asm/spinlock-llsc.h | 2 + arch/sparc/include/asm/Kbuild | 1 + arch/sparc/include/asm/io_64.h | 2 - arch/um/include/asm/Kbuild | 1 + arch/unicore32/include/asm/Kbuild | 1 + arch/x86/include/asm/Kbuild | 1 + arch/x86/include/asm/io.h | 2 - arch/xtensa/include/asm/Kbuild | 1 + drivers/crypto/cavium/nitrox/nitrox_reqmgr.c | 4 - drivers/dma/txx9dmac.c | 3 - drivers/firewire/ohci.c | 1 - drivers/gpu/drm/i915/intel_hdmi.c | 10 - drivers/ide/tx4939ide.c | 2 - drivers/infiniband/hw/hfi1/chip.c | 3 - drivers/infiniband/hw/hfi1/pio.c | 1 - drivers/infiniband/hw/hns/hns_roce_hw_v1.c | 2 - drivers/infiniband/hw/i40iw/i40iw_osdep.h | 2 +- drivers/infiniband/hw/mlx4/qp.c | 6 - drivers/infiniband/hw/mlx5/qp.c | 1 - drivers/infiniband/hw/mthca/mthca_cmd.c | 6 - drivers/infiniband/hw/mthca/mthca_cq.c | 5 - drivers/infiniband/hw/mthca/mthca_qp.c | 17 -- drivers/infiniband/hw/mthca/mthca_srq.c | 6 - drivers/infiniband/hw/qedr/verbs.c | 12 -- drivers/infiniband/hw/qib/qib_iba6120.c | 4 - drivers/infiniband/hw/qib/qib_iba7220.c | 3 - drivers/infiniband/hw/qib/qib_iba7322.c | 3 - drivers/infiniband/hw/qib/qib_sd7220.c | 4 - drivers/media/pci/dt3155/dt3155.c | 8 - drivers/memstick/host/jmb38x_ms.c | 4 - drivers/misc/ioc4.c | 2 - drivers/misc/mei/hw-me.c | 3 - drivers/misc/tifm_7xx1.c | 1 - drivers/mmc/host/alcor.c | 1 - drivers/mmc/host/sdhci.c | 13 -- drivers/mmc/host/tifm_sd.c | 3 - drivers/mmc/host/via-sdmmc.c | 10 - drivers/mtd/nand/raw/r852.c | 2 - drivers/mtd/nand/raw/txx9ndfmc.c | 1 - drivers/net/ethernet/aeroflex/greth.c | 1 - drivers/net/ethernet/alacritech/slicoss.c | 4 - drivers/net/ethernet/amazon/ena/ena_com.c | 1 - drivers/net/ethernet/atheros/atlx/atl1.c | 1 - drivers/net/ethernet/atheros/atlx/atl2.c | 1 - drivers/net/ethernet/broadcom/bnx2.c | 4 - drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 2 - drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h | 4 - .../net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c | 1 - drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 29 --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c | 1 - drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 2 - drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c | 4 - drivers/net/ethernet/broadcom/bnxt/bnxt.c | 3 - drivers/net/ethernet/broadcom/tg3.c | 6 - .../net/ethernet/cavium/liquidio/cn66xx_device.c | 10 - .../net/ethernet/cavium/liquidio/octeon_device.c | 1 - drivers/net/ethernet/cavium/liquidio/octeon_droq.c | 4 - .../net/ethernet/cavium/liquidio/request_manager.c | 1 - drivers/net/ethernet/intel/e1000/e1000_main.c | 5 - drivers/net/ethernet/intel/e1000e/netdev.c | 7 - drivers/net/ethernet/intel/fm10k/fm10k_iov.c | 2 - drivers/net/ethernet/intel/fm10k/fm10k_main.c | 5 - drivers/net/ethernet/intel/i40e/i40e_txrx.c | 5 - drivers/net/ethernet/intel/iavf/iavf_txrx.c | 5 - drivers/net/ethernet/intel/ice/ice_txrx.c | 5 - drivers/net/ethernet/intel/igb/igb_main.c | 5 - drivers/net/ethernet/intel/igbvf/netdev.c | 4 - drivers/net/ethernet/intel/igc/igc_main.c | 5 - drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 5 - drivers/net/ethernet/marvell/sky2.c | 4 - drivers/net/ethernet/mellanox/mlx4/catas.c | 4 - drivers/net/ethernet/mellanox/mlx4/cmd.c | 13 -- drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 1 - drivers/net/ethernet/myricom/myri10ge/myri10ge.c | 2 - drivers/net/ethernet/neterion/s2io.c | 2 - drivers/net/ethernet/neterion/vxge/vxge-main.c | 5 - drivers/net/ethernet/neterion/vxge/vxge-traffic.c | 4 - drivers/net/ethernet/qlogic/qed/qed_int.c | 13 -- drivers/net/ethernet/qlogic/qed/qed_spq.c | 3 - drivers/net/ethernet/qlogic/qede/qede_ethtool.c | 8 - drivers/net/ethernet/qlogic/qede/qede_fp.c | 8 - drivers/net/ethernet/qlogic/qla3xxx.c | 1 - drivers/net/ethernet/qlogic/qlge/qlge.h | 1 - drivers/net/ethernet/qlogic/qlge/qlge_main.c | 1 - drivers/net/ethernet/renesas/ravb_main.c | 9 - drivers/net/ethernet/renesas/ravb_ptp.c | 3 - drivers/net/ethernet/renesas/sh_eth.c | 1 - drivers/net/ethernet/sfc/falcon/io.h | 2 - drivers/net/ethernet/sfc/io.h | 2 - drivers/net/ethernet/silan/sc92031.c | 15 -- drivers/net/ethernet/via/via-rhine.c | 3 - drivers/net/ethernet/wiznet/w5100.c | 6 - drivers/net/ethernet/wiznet/w5300.c | 15 -- drivers/net/wireless/ath/ath5k/base.c | 4 - drivers/net/wireless/ath/ath5k/mac80211-ops.c | 2 - drivers/net/wireless/broadcom/b43/main.c | 7 - drivers/net/wireless/broadcom/b43/sysfs.c | 1 - drivers/net/wireless/broadcom/b43legacy/ilt.c | 2 - drivers/net/wireless/broadcom/b43legacy/main.c | 20 -- drivers/net/wireless/broadcom/b43legacy/phy.c | 1 - drivers/net/wireless/broadcom/b43legacy/pio.h | 1 - drivers/net/wireless/broadcom/b43legacy/radio.c | 4 - drivers/net/wireless/broadcom/b43legacy/sysfs.c | 1 - drivers/net/wireless/intel/iwlegacy/common.h | 7 - drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 1 - drivers/ntb/hw/idt/ntb_hw_idt.c | 7 - drivers/ntb/test/ntb_perf.c | 3 - drivers/scsi/bfa/bfa.h | 3 +- drivers/scsi/bfa/bfa_hw_cb.c | 2 - drivers/scsi/bfa/bfa_hw_ct.c | 2 - drivers/scsi/bnx2fc/bnx2fc_hwi.c | 2 - drivers/scsi/bnx2i/bnx2i_hwi.c | 3 - drivers/scsi/megaraid/megaraid_sas_base.c | 1 - drivers/scsi/megaraid/megaraid_sas_fusion.c | 1 - drivers/scsi/mpt3sas/mpt3sas_base.c | 1 - drivers/scsi/qedf/qedf_io.c | 1 - drivers/scsi/qedi/qedi_fw.c | 1 - drivers/scsi/qla1280.c | 15 -- drivers/ssb/pci.c | 1 - drivers/ssb/pcmcia.c | 4 - drivers/staging/comedi/drivers/mite.c | 3 - drivers/staging/comedi/drivers/ni_660x.c | 2 - drivers/staging/comedi/drivers/ni_mio_common.c | 1 - drivers/staging/comedi/drivers/ni_pcidio.c | 2 - drivers/staging/comedi/drivers/ni_tio.c | 1 - drivers/staging/comedi/drivers/s626.c | 2 - drivers/tty/serial/men_z135_uart.c | 1 - drivers/tty/serial/serial_txx9.c | 1 - drivers/usb/early/xhci-dbc.c | 4 - drivers/usb/host/xhci-dbgcap.c | 2 - include/asm-generic/io.h | 7 +- include/asm-generic/mmiowb.h | 63 ++++++ include/asm-generic/mmiowb_types.h | 12 ++ include/linux/qed/qed_if.h | 2 - include/linux/spinlock.h | 11 +- kernel/Kconfig.locks | 7 + kernel/locking/spinlock.c | 7 + kernel/locking/spinlock_debug.c | 6 +- sound/soc/txx9/txx9aclc-ac97.c | 1 - 181 files changed, 314 insertions(+), 820 deletions(-) create mode 100644 arch/ia64/include/asm/mmiowb.h create mode 100644 arch/mips/include/asm/mmiowb.h create mode 100644 arch/powerpc/include/asm/mmiowb.h create mode 100644 arch/riscv/include/asm/mmiowb.h create mode 100644 arch/sh/include/asm/mmiowb.h create mode 100644 include/asm-generic/mmiowb.h create mode 100644 include/asm-generic/mmiowb_types.h -- 2.11.0
next reply other threads:[~2019-04-05 13:59 UTC|newest] Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-04-05 13:59 Will Deacon [this message] 2019-04-05 13:59 ` [PATCH v2 00/21] Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb()) Will Deacon 2019-04-05 13:59 ` [PATCH v2 01/21] docs/memory-barriers.txt: Rewrite "KERNEL I/O BARRIER EFFECTS" section Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-10 10:58 ` Ingo Molnar 2019-04-10 10:58 ` Ingo Molnar 2019-04-10 12:28 ` Will Deacon 2019-04-10 12:28 ` Will Deacon 2019-04-10 12:28 ` Will Deacon 2019-04-11 11:00 ` Ingo Molnar 2019-04-11 11:00 ` Ingo Molnar 2019-04-11 22:12 ` Benjamin Herrenschmidt 2019-04-11 22:12 ` Benjamin Herrenschmidt 2019-04-11 22:34 ` Linus Torvalds 2019-04-11 22:34 ` Linus Torvalds 2019-04-12 2:07 ` Benjamin Herrenschmidt 2019-04-12 2:07 ` Benjamin Herrenschmidt 2019-04-12 13:17 ` Will Deacon 2019-04-12 13:17 ` Will Deacon 2019-04-15 4:05 ` Benjamin Herrenschmidt 2019-04-15 4:05 ` Benjamin Herrenschmidt 2019-04-16 9:13 ` Will Deacon 2019-04-16 9:13 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 02/21] asm-generic/mmiowb: Add generic implementation of mmiowb() tracking Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 03/21] arch: Use asm-generic header for asm/mmiowb.h Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 04/21] mmiowb: Hook up mmiowb helpers to spinlocks and generic I/O accessors Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 05/21] ARM/io: Remove useless definition of mmiowb() Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 06/21] arm64/io: " Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 07/21] x86/io: " Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 14:14 ` Thomas Gleixner 2019-04-05 14:14 ` Thomas Gleixner 2019-04-05 13:59 ` [PATCH v2 08/21] nds32/io: " Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 09/21] m68k/io: " Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 10/21] sh/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 11/21] mips/mmiowb: " Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 12/21] ia64/mmiowb: " Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 13/21] powerpc/mmiowb: Hook up mmwiob() implementation to asm-generic code Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 14/21] riscv/mmiowb: " Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 15/21] Documentation: Kill all references to mmiowb() Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 16/21] drivers: Remove useless trailing comments from mmiowb() invocations Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 17/21] drivers: Remove explicit invocations of mmiowb() Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 15:50 ` Linus Torvalds 2019-04-05 15:50 ` Linus Torvalds 2019-04-09 9:00 ` Nicholas Piggin 2019-04-09 9:00 ` Nicholas Piggin 2019-04-09 13:46 ` Will Deacon 2019-04-09 13:46 ` Will Deacon 2019-04-10 0:25 ` Nicholas Piggin 2019-04-10 0:25 ` Nicholas Piggin 2019-04-05 13:59 ` [PATCH v2 18/21] scsi/qla1280: Remove stale comment about mmiowb() Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 19/21] i40iw: Redefine i40iw_mmiowb() to do nothing Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 20/21] net/ethernet/silan/sc92031: Remove stale comment about mmiowb() Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 13:59 ` [PATCH v2 21/21] arch: Remove dummy mmiowb() definitions from arch code Will Deacon 2019-04-05 13:59 ` Will Deacon 2019-04-05 15:55 ` [PATCH v2 00/21] Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb()) Linus Torvalds 2019-04-05 15:55 ` Linus Torvalds 2019-04-05 16:09 ` Will Deacon 2019-04-05 16:09 ` Will Deacon 2019-04-05 16:15 ` Linus Torvalds 2019-04-05 16:15 ` Linus Torvalds 2019-04-05 16:30 ` Will Deacon 2019-04-05 16:30 ` Will Deacon
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