Date: Thu, 20 Nov 2003 00:34:54 -0000 From: Nate Lawson <nate@root.org> To: John Baldwin <jhb@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: RE: cvs commit: src/sys/dev/acpica acpi.c acpi_cpu.c Message-ID: <20031119160312.A69420@root.org> In-Reply-To: <XFMail.20031119163949.jhb@FreeBSD.org> References: <XFMail.20031119163949.jhb@FreeBSD.org>
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On Wed, 19 Nov 2003, John Baldwin wrote: > One minor suggestion btw. Could you fix the hw.acpi.cpu.cpu_cx_lowest > to use the "C1", "C2", and "C3" strings for its user-visible interface > instead of the direct integer? Setting the value to C2 is a bit more > intuitive than setting it to 1 to get C2. I considered this before, however Cx is really a type, not a given state. There can be more than 3 sleep states. For instance, the IBM R40 has C1, C2, C3, and C3 (4 states). An index was the only unique way I could specify the states. The transition latency is also unique but setting a state to 182 to get the last C3 state is even worse from a user perspective. -Nate
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