1 /*- 2 * Copyright (c) 2003-2005 Nate Lawson (SDG) 3 * Copyright (c) 2001 Michael Smith 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: src/sys/dev/acpica/acpi_cpu.c,v 1.72 2008/04/12 12:06:00 rpaulo Exp $ 28 */ 29 30 #ifndef __ACPI_CPU_CSTATE_H__ 31 #define __ACPI_CPU_CSTATE_H__ 32 33 #ifndef _SYS_BUS_H_ 34 #include <sys/bus.h> 35 #endif 36 37 struct acpi_cst_cx { 38 uint32_t type; /* C1-3+. */ 39 uint32_t trans_lat; /* Transition latency (usec). */ 40 int preamble; /* ACPI_CST_CX_PREAMBLE_ */ 41 uint32_t flags; /* ACPI_CST_CX_FLAG_ */ 42 uint32_t md_arg0; /* machine depend arg */ 43 void (*enter)(const struct acpi_cst_cx *); 44 bus_space_tag_t btag; 45 bus_space_handle_t bhand; 46 47 struct resource *res; 48 ACPI_GENERIC_ADDRESS gas; 49 int rid; 50 int res_type; 51 uint32_t power; /* Power consumed (mW). */ 52 }; 53 54 #define ACPI_CST_CX_PREAMBLE_NONE 0 55 #define ACPI_CST_CX_PREAMBLE_WBINVD 1 /* flush cache */ 56 #define ACPI_CST_CX_PREAMBLE_BM_ARB 2 /* disable BM_ARB */ 57 58 #define ACPI_CST_CX_FLAG_BM_STS 0x1 /* check BM_STS */ 59 60 extern int acpi_cst_quirks; /* ACPI_CST_QUIRK_ */ 61 62 #define ACPI_CST_QUIRK_NO_C3 0x1 /* C3(+) not usable. */ 63 #define ACPI_CST_QUIRK_NO_BM 0x2 /* No bus mastering. */ 64 65 int acpi_cst_md_cx_setup(struct acpi_cst_cx *); 66 67 #endif /* !__ACPI_CPU_CSTATE_H__ */ 68