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authorIngo Molnar <mingo@elte.hu>2008-08-14 14:58:01 +0200
committerIngo Molnar <mingo@elte.hu>2008-08-14 14:58:01 +0200
commit51ca3c679194e7435c25b8e77b0a73c597e41ae9 (patch)
treea681dca369607ab0f371d5246b0f75140b860a8a /arch/powerpc/include/asm/pmi.h
parentb55793f7528ce1b73c25b3ac8a86a6cda2a0f9a4 (diff)
parentb635acec48bcaa9183fcbf4e3955616b0d4119b5 (diff)
Merge branch 'linus' into x86/core
Conflicts: arch/x86/kernel/genapic_64.c include/asm-x86/kvm_host.h Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/powerpc/include/asm/pmi.h')
-rw-r--r--arch/powerpc/include/asm/pmi.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pmi.h b/arch/powerpc/include/asm/pmi.h
new file mode 100644
index 00000000000..b4e91fbf508
--- /dev/null
+++ b/arch/powerpc/include/asm/pmi.h
@@ -0,0 +1,66 @@
+#ifndef _POWERPC_PMI_H
+#define _POWERPC_PMI_H
+
+/*
+ * Definitions for talking with PMI device on PowerPC
+ *
+ * PMI (Platform Management Interrupt) is a way to communicate
+ * with the BMC (Baseboard Management Controller) via interrupts.
+ * Unlike IPMI it is bidirectional and has a low latency.
+ *
+ * (C) Copyright IBM Deutschland Entwicklung GmbH 2005
+ *
+ * Author: Christian Krafft <krafft@de.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, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifdef __KERNEL__
+
+#define PMI_TYPE_FREQ_CHANGE 0x01
+#define PMI_TYPE_POWER_BUTTON 0x02
+#define PMI_READ_TYPE 0
+#define PMI_READ_DATA0 1
+#define PMI_READ_DATA1 2
+#define PMI_READ_DATA2 3
+#define PMI_WRITE_TYPE 4
+#define PMI_WRITE_DATA0 5
+#define PMI_WRITE_DATA1 6
+#define PMI_WRITE_DATA2 7
+
+#define PMI_ACK 0x80
+
+#define PMI_TIMEOUT 100
+
+typedef struct {
+ u8 type;
+ u8 data0;
+ u8 data1;
+ u8 data2;
+} pmi_message_t;
+
+struct pmi_handler {
+ struct list_head node;
+ u8 type;
+ void (*handle_pmi_message) (pmi_message_t);
+};
+
+int pmi_register_handler(struct pmi_handler *);
+void pmi_unregister_handler(struct pmi_handler *);
+
+int pmi_send_message(pmi_message_t);
+
+#endif /* __KERNEL__ */
+#endif /* _POWERPC_PMI_H */