/* * Copyright (c) 2014, The Linux Foundation. All rights reserved. * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and * may be copied, distributed, and modified under those terms. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #ifndef _DT_BINDINGS_RESET_APQ_MMCC_8084_H #define _DT_BINDINGS_RESET_APQ_MMCC_8084_H #define MMSS_SPDM_RESET 0 #define MMSS_SPDM_RM_RESET 1 #define VENUS0_RESET 2 #define VPU_RESET 3 #define MDSS_RESET 4 #define AVSYNC_RESET 5 #define CAMSS_PHY0_RESET 6 #define CAMSS_PHY1_RESET 7 #define CAMSS_PHY2_RESET 8 #define CAMSS_CSI0_RESET 9 #define CAMSS_CSI0PHY_RESET 10 #define CAMSS_CSI0RDI_RESET 11 #define CAMSS_CSI0PIX_RESET 12 #define CAMSS_CSI1_RESET 13 #define CAMSS_CSI1PHY_RESET 14 #define CAMSS_CSI1RDI_RESET 15 #define CAMSS_CSI1PIX_RESET 16 #define CAMSS_CSI2_RESET 17 #define CAMSS_CSI2PHY_RESET 18 #define CAMSS_CSI2RDI_RESET 19 #define CAMSS_CSI2PIX_RESET 20 #define CAMSS_CSI3_RESET 21 #define CAMSS_CSI3PHY_RESET 22 #define CAMSS_CSI3RDI_RESET 23 #define CAMSS_CSI3PIX_RESET 24 #define CAMSS_ISPIF_RESET 25 #define CAMSS_CCI_RESET 26 #define CAMSS_MCLK0_RESET 27 #define CAMSS_MCLK1_RESET 28 #define CAMSS_MCLK2_RESET 29 #define CAMSS_MCLK3_RESET 30 #define CAMSS_GP0_RESET 31 #define CAMSS_GP1_RESET 32 #define CAMSS_TOP_RESET 33 #define CAMSS_AHB_RESET 34 #define CAMSS_MICRO_RESET 35 #define CAMSS_JPEG_RESET 36 #define CAMSS_VFE_RESET 37 #define CAMSS_CSI_VFE0_RESET 38 #define CAMSS_CSI_VFE1_RESET 39 #define OXILI_RESET 40 #define OXILICX_RESET 41 #define OCMEMCX_RESET 42 #define MMSS_RBCRP_RESET 43 #define MMSSNOCAHB_RESET 44 #define MMSSNOCAXI_RESET 45 #endif gi/linux/net-next.git/diff/net/core/flow.c?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92'>diff
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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-02-01 17:45:02 +0000
committerIngo Molnar <mingo@kernel.org>2017-02-01 21:17:49 +0100
commitc8f325a59cfc718d13a50fbc746ed9b415c25e92 (patch)
treed53fbdac9d0781e39a13b2ac6b2bd258cf3b4140 /net/core/flow.c
parentbf29bddf0417a4783da3b24e8c9e017ac649326f (diff)
efi/fdt: Avoid FDT manipulation after ExitBootServices()
Some AArch64 UEFI implementations disable the MMU in ExitBootServices(), after which unaligned accesses to RAM are no longer supported. Commit: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") fixed an issue in the memory map handling of the stub FDT code, but inadvertently created an issue with such firmware, by moving some of the FDT manipulation to after the invocation of ExitBootServices(). Given that the stub's libfdt implementation uses the ordinary, accelerated string functions, which rely on hardware handling of unaligned accesses, manipulating the FDT with the MMU off may result in alignment faults. So fix the situation by moving the update_fdt_memmap() call into the callback function invoked by efi_exit_boot_services() right before it calls the ExitBootServices() UEFI service (which is arguably a better place for it anyway) Note that disabling the MMU in ExitBootServices() is not compliant with the UEFI spec, and carries great risk due to the fact that switching from cached to uncached memory accesses halfway through compiler generated code (i.e., involving a stack) can never be done in a way that is architecturally safe. Fixes: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Riku Voipio <riku.voipio@linaro.org> Cc: <stable@vger.kernel.org> Cc: mark.rutland@arm.com Cc: linux-efi@vger.kernel.org Cc: matt@codeblueprint.co.uk Cc: leif.lindholm@linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1485971102-23330-2-git-send-email-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/core/flow.c')