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path: root/sound/pci/hda/local.h
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/*
 */

#ifndef __HDAC_LOCAL_H
#define __HDAC_LOCAL_H

int hdac_read_parm(struct hdac_device *codec, hda_nid_t nid, int parm);

#define get_wcaps(codec, nid) \
	hdac_read_parm(codec, nid, AC_PAR_AUDIO_WIDGET_CAP)
/* get the widget type from widget capability bits */
static inline int get_wcaps_type(unsigned int wcaps)
{
	if (!wcaps)
		return -1; /* invalid type */
	return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
}

#define get_pin_caps(codec, nid) \
	hdac_read_parm(codec, nid, AC_PAR_PIN_CAP)

static inline
unsigned int get_pin_cfg(struct hdac_device *codec, hda_nid_t nid)
{
	unsigned int val;

	if (snd_hdac_read(codec, nid, AC_VERB_GET_CONFIG_DEFAULT, 0, &val))
		return -1;
	return val;
}

#define get_amp_caps(codec, nid, dir) \
	hdac_read_parm(codec, nid, (dir) == HDA_OUTPUT ? \
		       AC_PAR_AMP_OUT_CAP : AC_PAR_AMP_IN_CAP)

#define get_power_caps(codec, nid) \
	hdac_read_parm(codec, nid, AC_PAR_POWER_STATE)

#endif /* __HDAC_LOCAL_H */
d0bd66c (diff)
x86/efi: Always map the first physical page into the EFI pagetables
Commit: 129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode") stopped creating 1:1 mappings for all RAM, when running in native 64-bit mode. It turns out though that there are 64-bit EFI implementations in the wild (this particular problem has been reported on a Lenovo Yoga 710-11IKB), which still make use of the first physical page for their own private use, even though they explicitly mark it EFI_CONVENTIONAL_MEMORY in the memory map. In case there is no mapping for this particular frame in the EFI pagetables, as soon as firmware tries to make use of it, a triple fault occurs and the system reboots (in case of the Yoga 710-11IKB this is very early during bootup). Fix that by always mapping the first page of physical memory into the EFI pagetables. We're free to hand this page to the BIOS, as trim_bios_range() will reserve the first page and isolate it away from memory allocators anyway. Note that just reverting 129766708 alone is not enough on v4.9-rc1+ to fix the regression on affected hardware, as this commit: ab72a27da ("x86/efi: Consolidate region mapping logic") later made the first physical frame not to be mapped anyway. Reported-by: Hanka Pavlikova <hanka@ucw.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Borislav Petkov <bp@suse.de> Cc: Laura Abbott <labbott@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vojtech Pavlik <vojtech@ucw.cz> Cc: Waiman Long <waiman.long@hpe.com> Cc: linux-efi@vger.kernel.org Cc: stable@kernel.org # v4.8+ Fixes: 129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode") Link: http://lkml.kernel.org/r/20170127222552.22336-1-matt@codeblueprint.co.uk [ Tidied up the changelog and the comment. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'sound/soc/cirrus/simone.c')