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dd4e5d6106
Remove mmiowb() from the kernel memory barrier API and instead, for architectures that need it, hide the barrier inside spin_unlock() when MMIO has been performed inside the critical section. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAlzMFaUACgkQt6xw3ITB YzRICQgAiv7wF/yIbBhDOmCNCAKDO59chvFQWxXWdGk/aAB56kwKAMXJgLOvlMG/ VRuuLyParTFQETC3jaxKgnO/1hb+PZLDt2Q2KqixtjIzBypKUPWvK2sf6THhSRF1 GK0DBVUd1rCrWrR815+SPb8el4xXtdBzvAVB+Fx35PXVNpdRdqCkK+EQ6UnXGokm rXXHbnfsnquBDtmb4CR4r2beH+aNElXbdt0Kj8VcE5J7f7jTdW3z6Q9WFRvdKmK7 yrsxXXB2w/EsWXOwFp0SLTV5+fgeGgTvv8uLjDw+SG6t0E0PebxjNAflT7dPrbYL WecjKC9WqBxrGY+4ew6YJP70ijLBCw== =aC8m -----END PGP SIGNATURE----- Merge tag 'arm64-mmiowb' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull mmiowb removal from Will Deacon: "Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb()) Remove mmiowb() from the kernel memory barrier API and instead, for architectures that need it, hide the barrier inside spin_unlock() when MMIO has been performed inside the critical section. The only relatively recent changes have been addressing review comments on the documentation, which is in a much better shape thanks to the efforts of Ben and Ingo. I was initially planning to split this into two pull requests so that you could run the coccinelle script yourself, however it's been plain sailing in linux-next so I've just included the whole lot here to keep things simple" * tag 'arm64-mmiowb' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (23 commits) docs/memory-barriers.txt: Update I/O section to be clearer about CPU vs thread docs/memory-barriers.txt: Fix style, spacing and grammar in I/O section arch: Remove dummy mmiowb() definitions from arch code net/ethernet/silan/sc92031: Remove stale comment about mmiowb() i40iw: Redefine i40iw_mmiowb() to do nothing scsi/qla1280: Remove stale comment about mmiowb() drivers: Remove explicit invocations of mmiowb() drivers: Remove useless trailing comments from mmiowb() invocations Documentation: Kill all references to mmiowb() riscv/mmiowb: Hook up mmwiob() implementation to asm-generic code powerpc/mmiowb: Hook up mmwiob() implementation to asm-generic code ia64/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() mips/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() sh/mmiowb: Add unconditional mmiowb() to arch_spin_unlock() m68k/io: Remove useless definition of mmiowb() nds32/io: Remove useless definition of mmiowb() x86/io: Remove useless definition of mmiowb() arm64/io: Remove useless definition of mmiowb() ARM/io: Remove useless definition of mmiowb() mmiowb: Hook up mmiowb helpers to spinlocks and generic I/O accessors ... |
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| .. | ||
| bestcomm | ||
| dw | ||
| dw-axi-dmac | ||
| hsu | ||
| ioat | ||
| ipu | ||
| mediatek | ||
| ppc4xx | ||
| qcom | ||
| sh | ||
| ti | ||
| xilinx | ||
| acpi-dma.c | ||
| altera-msgdma.c | ||
| amba-pl08x.c | ||
| at_hdmac_regs.h | ||
| at_hdmac.c | ||
| at_xdmac.c | ||
| bcm-sba-raid.c | ||
| bcm2835-dma.c | ||
| coh901318_lli.c | ||
| coh901318.c | ||
| coh901318.h | ||
| dma-axi-dmac.c | ||
| dma-jz4740.c | ||
| dma-jz4780.c | ||
| dmaengine.c | ||
| dmaengine.h | ||
| dmatest.c | ||
| ep93xx_dma.c | ||
| fsl_raid.c | ||
| fsl_raid.h | ||
| fsl-edma-common.c | ||
| fsl-edma-common.h | ||
| fsl-edma.c | ||
| fsl-qdma.c | ||
| fsldma.c | ||
| fsldma.h | ||
| idma64.c | ||
| idma64.h | ||
| img-mdc-dma.c | ||
| imx-dma.c | ||
| imx-sdma.c | ||
| iop-adma.c | ||
| k3dma.c | ||
| Kconfig | ||
| lpc18xx-dmamux.c | ||
| Makefile | ||
| mcf-edma.c | ||
| mic_x100_dma.c | ||
| mic_x100_dma.h | ||
| mmp_pdma.c | ||
| mmp_tdma.c | ||
| moxart-dma.c | ||
| mpc512x_dma.c | ||
| mv_xor_v2.c | ||
| mv_xor.c | ||
| mv_xor.h | ||
| mxs-dma.c | ||
| nbpfaxi.c | ||
| of-dma.c | ||
| owl-dma.c | ||
| pch_dma.c | ||
| pl330.c | ||
| pxa_dma.c | ||
| s3c24xx-dma.c | ||
| sa11x0-dma.c | ||
| sirf-dma.c | ||
| sprd-dma.c | ||
| st_fdma.c | ||
| st_fdma.h | ||
| ste_dma40_ll.c | ||
| ste_dma40_ll.h | ||
| ste_dma40.c | ||
| stm32-dma.c | ||
| stm32-dmamux.c | ||
| stm32-mdma.c | ||
| sun4i-dma.c | ||
| sun6i-dma.c | ||
| tegra20-apb-dma.c | ||
| tegra210-adma.c | ||
| timb_dma.c | ||
| TODO | ||
| txx9dmac.c | ||
| txx9dmac.h | ||
| uniphier-mdmac.c | ||
| virt-dma.c | ||
| virt-dma.h | ||
| xgene-dma.c | ||
| zx_dma.c | ||