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9ee820fa00
Adds support for page coalescing, which is a feature on IBM Power servers which allows for coalescing identical pages between logical partitions. Hint text pages as coalesce candidates, since they are the most likely pages to be able to be coalesced between partitions. This patch also exports some page coalescing statistics available from firmware via lparcfg. [BenH: Moved a couple of things around to fix compile problems] Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
134 lines
4.5 KiB
C
134 lines
4.5 KiB
C
/*
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* Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
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*
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* Modifications for ppc64:
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* Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef __ASM_POWERPC_FIRMWARE_H
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#define __ASM_POWERPC_FIRMWARE_H
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#ifdef __KERNEL__
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#include <asm/asm-compat.h>
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#include <asm/feature-fixups.h>
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/* firmware feature bitmask values */
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#define FIRMWARE_MAX_FEATURES 63
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#define FW_FEATURE_PFT ASM_CONST(0x0000000000000001)
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#define FW_FEATURE_TCE ASM_CONST(0x0000000000000002)
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#define FW_FEATURE_SPRG0 ASM_CONST(0x0000000000000004)
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#define FW_FEATURE_DABR ASM_CONST(0x0000000000000008)
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#define FW_FEATURE_COPY ASM_CONST(0x0000000000000010)
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#define FW_FEATURE_ASR ASM_CONST(0x0000000000000020)
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#define FW_FEATURE_DEBUG ASM_CONST(0x0000000000000040)
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#define FW_FEATURE_TERM ASM_CONST(0x0000000000000080)
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#define FW_FEATURE_PERF ASM_CONST(0x0000000000000100)
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#define FW_FEATURE_DUMP ASM_CONST(0x0000000000000200)
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#define FW_FEATURE_INTERRUPT ASM_CONST(0x0000000000000400)
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#define FW_FEATURE_MIGRATE ASM_CONST(0x0000000000000800)
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#define FW_FEATURE_PERFMON ASM_CONST(0x0000000000001000)
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#define FW_FEATURE_CRQ ASM_CONST(0x0000000000002000)
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#define FW_FEATURE_VIO ASM_CONST(0x0000000000004000)
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#define FW_FEATURE_RDMA ASM_CONST(0x0000000000008000)
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#define FW_FEATURE_LLAN ASM_CONST(0x0000000000010000)
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#define FW_FEATURE_BULK_REMOVE ASM_CONST(0x0000000000020000)
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#define FW_FEATURE_XDABR ASM_CONST(0x0000000000040000)
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#define FW_FEATURE_MULTITCE ASM_CONST(0x0000000000080000)
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#define FW_FEATURE_SPLPAR ASM_CONST(0x0000000000100000)
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#define FW_FEATURE_ISERIES ASM_CONST(0x0000000000200000)
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#define FW_FEATURE_LPAR ASM_CONST(0x0000000000400000)
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#define FW_FEATURE_PS3_LV1 ASM_CONST(0x0000000000800000)
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#define FW_FEATURE_BEAT ASM_CONST(0x0000000001000000)
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#define FW_FEATURE_CMO ASM_CONST(0x0000000002000000)
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#define FW_FEATURE_VPHN ASM_CONST(0x0000000004000000)
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#define FW_FEATURE_XCMO ASM_CONST(0x0000000008000000)
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#ifndef __ASSEMBLY__
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enum {
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#ifdef CONFIG_PPC64
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FW_FEATURE_PSERIES_POSSIBLE = FW_FEATURE_PFT | FW_FEATURE_TCE |
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FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
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FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
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FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
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FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
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FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
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FW_FEATURE_BULK_REMOVE | FW_FEATURE_XDABR |
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FW_FEATURE_MULTITCE | FW_FEATURE_SPLPAR | FW_FEATURE_LPAR |
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FW_FEATURE_CMO | FW_FEATURE_VPHN | FW_FEATURE_XCMO,
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FW_FEATURE_PSERIES_ALWAYS = 0,
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FW_FEATURE_ISERIES_POSSIBLE = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
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FW_FEATURE_ISERIES_ALWAYS = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
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FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
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FW_FEATURE_PS3_ALWAYS = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
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FW_FEATURE_CELLEB_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_BEAT,
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FW_FEATURE_CELLEB_ALWAYS = 0,
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FW_FEATURE_NATIVE_POSSIBLE = 0,
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FW_FEATURE_NATIVE_ALWAYS = 0,
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FW_FEATURE_POSSIBLE =
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#ifdef CONFIG_PPC_PSERIES
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FW_FEATURE_PSERIES_POSSIBLE |
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#endif
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#ifdef CONFIG_PPC_ISERIES
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FW_FEATURE_ISERIES_POSSIBLE |
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#endif
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#ifdef CONFIG_PPC_PS3
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FW_FEATURE_PS3_POSSIBLE |
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#endif
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#ifdef CONFIG_PPC_CELLEB
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FW_FEATURE_CELLEB_POSSIBLE |
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#endif
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#ifdef CONFIG_PPC_NATIVE
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FW_FEATURE_NATIVE_ALWAYS |
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#endif
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0,
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FW_FEATURE_ALWAYS =
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#ifdef CONFIG_PPC_PSERIES
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FW_FEATURE_PSERIES_ALWAYS &
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#endif
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#ifdef CONFIG_PPC_ISERIES
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FW_FEATURE_ISERIES_ALWAYS &
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#endif
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#ifdef CONFIG_PPC_PS3
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FW_FEATURE_PS3_ALWAYS &
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#endif
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#ifdef CONFIG_PPC_CELLEB
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FW_FEATURE_CELLEB_ALWAYS &
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#endif
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#ifdef CONFIG_PPC_NATIVE
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FW_FEATURE_NATIVE_ALWAYS &
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#endif
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FW_FEATURE_POSSIBLE,
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#else /* CONFIG_PPC64 */
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FW_FEATURE_POSSIBLE = 0,
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FW_FEATURE_ALWAYS = 0,
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#endif
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};
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/* This is used to identify firmware features which are available
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* to the kernel.
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*/
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extern unsigned long powerpc_firmware_features;
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#define firmware_has_feature(feature) \
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((FW_FEATURE_ALWAYS & (feature)) || \
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(FW_FEATURE_POSSIBLE & powerpc_firmware_features & (feature)))
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extern void system_reset_fwnmi(void);
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extern void machine_check_fwnmi(void);
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/* This is true if we are using the firmware NMI handler (typically LPAR) */
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extern int fwnmi_active;
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extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;
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#endif /* __ASSEMBLY__ */
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#endif /* __KERNEL__ */
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#endif /* __ASM_POWERPC_FIRMWARE_H */
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