42c4aaadb7
There are currently two versions of the functions for applying the feature fixups, one for CPU features and one for firmware features. In addition, they are both in assembly and with separate implementations for 32 and 64 bits. identify_cpu() is also implemented in assembly and separately for 32 and 64 bits. This patch replaces them with a pair of C functions. The call sites are slightly moved on ppc64 as well to be called from C instead of from assembly, though it's a very small change, and thus shouldn't cause any problem. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
121 lines
3.9 KiB
C
121 lines
3.9 KiB
C
/*
|
|
* Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
|
|
*
|
|
* Modifications for ppc64:
|
|
* Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
#ifndef __ASM_POWERPC_FIRMWARE_H
|
|
#define __ASM_POWERPC_FIRMWARE_H
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <asm/asm-compat.h>
|
|
|
|
/* firmware feature bitmask values */
|
|
#define FIRMWARE_MAX_FEATURES 63
|
|
|
|
#define FW_FEATURE_PFT ASM_CONST(0x0000000000000001)
|
|
#define FW_FEATURE_TCE ASM_CONST(0x0000000000000002)
|
|
#define FW_FEATURE_SPRG0 ASM_CONST(0x0000000000000004)
|
|
#define FW_FEATURE_DABR ASM_CONST(0x0000000000000008)
|
|
#define FW_FEATURE_COPY ASM_CONST(0x0000000000000010)
|
|
#define FW_FEATURE_ASR ASM_CONST(0x0000000000000020)
|
|
#define FW_FEATURE_DEBUG ASM_CONST(0x0000000000000040)
|
|
#define FW_FEATURE_TERM ASM_CONST(0x0000000000000080)
|
|
#define FW_FEATURE_PERF ASM_CONST(0x0000000000000100)
|
|
#define FW_FEATURE_DUMP ASM_CONST(0x0000000000000200)
|
|
#define FW_FEATURE_INTERRUPT ASM_CONST(0x0000000000000400)
|
|
#define FW_FEATURE_MIGRATE ASM_CONST(0x0000000000000800)
|
|
#define FW_FEATURE_PERFMON ASM_CONST(0x0000000000001000)
|
|
#define FW_FEATURE_CRQ ASM_CONST(0x0000000000002000)
|
|
#define FW_FEATURE_VIO ASM_CONST(0x0000000000004000)
|
|
#define FW_FEATURE_RDMA ASM_CONST(0x0000000000008000)
|
|
#define FW_FEATURE_LLAN ASM_CONST(0x0000000000010000)
|
|
#define FW_FEATURE_BULK ASM_CONST(0x0000000000020000)
|
|
#define FW_FEATURE_XDABR ASM_CONST(0x0000000000040000)
|
|
#define FW_FEATURE_MULTITCE ASM_CONST(0x0000000000080000)
|
|
#define FW_FEATURE_SPLPAR ASM_CONST(0x0000000000100000)
|
|
#define FW_FEATURE_ISERIES ASM_CONST(0x0000000000200000)
|
|
#define FW_FEATURE_LPAR ASM_CONST(0x0000000000400000)
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
enum {
|
|
#ifdef CONFIG_PPC64
|
|
FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
|
|
FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
|
|
FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
|
|
FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
|
|
FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
|
|
FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
|
|
FW_FEATURE_BULK | FW_FEATURE_XDABR | FW_FEATURE_MULTITCE |
|
|
FW_FEATURE_SPLPAR | FW_FEATURE_LPAR,
|
|
FW_FEATURE_PSERIES_ALWAYS = 0,
|
|
FW_FEATURE_ISERIES_POSSIBLE = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
|
|
FW_FEATURE_ISERIES_ALWAYS = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
|
|
FW_FEATURE_POSSIBLE =
|
|
#ifdef CONFIG_PPC_PSERIES
|
|
FW_FEATURE_PSERIES_POSSIBLE |
|
|
#endif
|
|
#ifdef CONFIG_PPC_ISERIES
|
|
FW_FEATURE_ISERIES_POSSIBLE |
|
|
#endif
|
|
0,
|
|
FW_FEATURE_ALWAYS =
|
|
#ifdef CONFIG_PPC_PSERIES
|
|
FW_FEATURE_PSERIES_ALWAYS &
|
|
#endif
|
|
#ifdef CONFIG_PPC_ISERIES
|
|
FW_FEATURE_ISERIES_ALWAYS &
|
|
#endif
|
|
FW_FEATURE_POSSIBLE,
|
|
|
|
#else /* CONFIG_PPC64 */
|
|
FW_FEATURE_POSSIBLE = 0,
|
|
FW_FEATURE_ALWAYS = 0,
|
|
#endif
|
|
};
|
|
|
|
/* This is used to identify firmware features which are available
|
|
* to the kernel.
|
|
*/
|
|
extern unsigned long powerpc_firmware_features;
|
|
|
|
#define firmware_has_feature(feature) \
|
|
((FW_FEATURE_ALWAYS & (feature)) || \
|
|
(FW_FEATURE_POSSIBLE & powerpc_firmware_features & (feature)))
|
|
|
|
extern void system_reset_fwnmi(void);
|
|
extern void machine_check_fwnmi(void);
|
|
|
|
/* This is true if we are using the firmware NMI handler (typically LPAR) */
|
|
extern int fwnmi_active;
|
|
|
|
extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;
|
|
|
|
#else /* __ASSEMBLY__ */
|
|
|
|
#define BEGIN_FW_FTR_SECTION 96:
|
|
|
|
#define END_FW_FTR_SECTION(msk, val) \
|
|
97: \
|
|
.section __fw_ftr_fixup,"a"; \
|
|
.align 3; \
|
|
.llong msk; \
|
|
.llong val; \
|
|
.llong 96b; \
|
|
.llong 97b; \
|
|
.previous
|
|
|
|
#define END_FW_FTR_SECTION_IFSET(msk) END_FW_FTR_SECTION((msk), (msk))
|
|
#define END_FW_FTR_SECTION_IFCLR(msk) END_FW_FTR_SECTION((msk), 0)
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
#endif /* __KERNEL__ */
|
|
#endif /* __ASM_POWERPC_FIRMWARE_H */
|