/* * linux/sound/cs35l33.h -- Platform data for CS35l33 * * Copyright (c) 2016 Cirrus Logic Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef __CS35L33_H #define __CS35L33_H struct cs35l33_hg { bool enable_hg_algo; unsigned int mem_depth; unsigned int release_rate; unsigned int hd_rm; unsigned int ldo_thld; unsigned int ldo_path_disable; unsigned int ldo_entry_delay; bool vp_hg_auto; unsigned int vp_hg; unsigned int vp_hg_rate; unsigned int vp_hg_va; }; struct cs35l33_pdata { /* Boost Controller Voltage Setting */ unsigned int boost_ctl; /* Boost Controller Peak Current */ unsigned int boost_ipk; /* Amplifier Drive Select */ unsigned int amp_drv_sel; /* soft volume ramp */ unsigned int ramp_rate; /* IMON adc scale */ unsigned int imon_adc_scale; /* H/G algo configuration */ struct cs35l33_hg hg_config; }; #endif /* __CS35L33_H */ name='h' onchange='this.form.submit();'> net-next plumbingsTobias Klauser
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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 /include/net/timewait_sock.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 'include/net/timewait_sock.h')