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Message-ID: <20090630063230.GD1351@ucw.cz> Date: Tue, 30 Jun 2009 08:32:30 +0200 From: Pavel Machek <pavel@....cz> To: "Pan, Jacob jun" <jacob.jun.pan@...el.com> Cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "H. Peter Anvin" <hpa@...ux.intel.com> Subject: Re: [PATCH 2/9] x86: introduce a set of platform feature flags > +#define X86_PLATFORM_FEATURE_FLOPPY (0*32+5) /* ISA floppy */ > +#define X86_PLATFORM_FEATURE_ISA (0*32+6) /* ISA/LPC bus */ > +#define X86_PLATFORM_FEATURE_BIOS (0*32+7) /* BIOS service, > + * e.g. int calls > + * EBDA, etc. > + */ > +#define X86_PLATFORM_FEATURE_ACPI (0*32+8) /* has ACPI support */ > +#define X86_PLATFORM_FEATURE_SFI (0*32+9) /* has SFI support */ > +#define X86_PLATFORM_FEATURE_8042 (0*32+10) /* i8042 KBC */ > + > +extern __u32 platform_feature[N_PLATFORM_CAPINTS]; > +extern const char *const > + x86_platform_available_feature[N_PLATFORM_CAPINTS * 32]; > +#define platform_has(bit) \ > + test_bit(bit, (unsigned long *)platform_feature) test_bit and friends imply synchronization you probably don't want or need... -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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