/* * Copyright (C) 2016 Neil Armstrong * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope 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. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #ifndef DT_RESET_OXSEMI_OX820_H #define DT_RESET_OXSEMI_OX820_H #define RESET_SCU 0 #define RESET_LEON 1 #define RESET_ARM0 2 #define RESET_ARM1 3 #define RESET_USBHS 4 #define RESET_USBPHYA 5 #define RESET_MAC 6 #define RESET_PCIEA 7 #define RESET_SGDMA 8 #define RESET_CIPHER 9 #define RESET_DDR 10 #define RESET_SATA 11 #define RESET_SATA_LINK 12 #define RESET_SATA_PHY 13 #define RESET_PCIEPHY 14 #define RESET_NAND 15 #define RESET_GPIO 16 #define RESET_UART1 17 #define RESET_UART2 18 #define RESET_MISC 19 #define RESET_I2S 20 #define RESET_SD 21 #define RESET_MAC_2 22 #define RESET_PCIEB 23 #define RESET_VIDEO 24 #define RESET_DDR_PHY 25 #define RESET_USBPHYB 26 #define RESET_USBDEV 27 /* Reserved 29 */ #define RESET_ARMDBG 29 #define RESET_PLLA 30 #define RESET_PLLB 31 #endif /* DT_RESET_OXSEMI_OX820_H */ tr>
summaryrefslogtreecommitdiff
path: root/net/mac80211/sta_info.h
diff options
context:
space:
mode:
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/mac80211/sta_info.h
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/mac80211/sta_info.h')