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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-08 11:31:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-08 11:31:16 -0700
commit3f17ea6dea8ba5668873afa54628a91aaa3fb1c0 (patch)
treeafbeb2accd4c2199ddd705ae943995b143a0af02 /include/uapi/linux/psci.h
parent1860e379875dfe7271c649058aeddffe5afd9d0d (diff)
parent1a5700bc2d10cd379a795fd2bb377a190af5acd4 (diff)
Merge branch 'next' (accumulated 3.16 merge window patches) into master
Now that 3.15 is released, this merges the 'next' branch into 'master', bringing us to the normal situation where my 'master' branch is the merge window. * accumulated work in next: (6809 commits) ufs: sb mutex merge + mutex_destroy powerpc: update comments for generic idle conversion cris: update comments for generic idle conversion idle: remove cpu_idle() forward declarations nbd: zero from and len fields in NBD_CMD_DISCONNECT. mm: convert some level-less printks to pr_* MAINTAINERS: adi-buildroot-devel is moderated MAINTAINERS: add linux-api for review of API/ABI changes mm/kmemleak-test.c: use pr_fmt for logging fs/dlm/debug_fs.c: replace seq_printf by seq_puts fs/dlm/lockspace.c: convert simple_str to kstr fs/dlm/config.c: convert simple_str to kstr mm: mark remap_file_pages() syscall as deprecated mm: memcontrol: remove unnecessary memcg argument from soft limit functions mm: memcontrol: clean up memcg zoneinfo lookup mm/memblock.c: call kmemleak directly from memblock_(alloc|free) mm/mempool.c: update the kmemleak stack trace for mempool allocations lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations mm: introduce kmemleak_update_trace() mm/kmemleak.c: use %u to print ->checksum ...
Diffstat (limited to 'include/uapi/linux/psci.h')
-rw-r--r--include/uapi/linux/psci.h90
1 files changed, 90 insertions, 0 deletions
diff --git a/include/uapi/linux/psci.h b/include/uapi/linux/psci.h
new file mode 100644
index 00000000000..310d83e0a91
--- /dev/null
+++ b/include/uapi/linux/psci.h
@@ -0,0 +1,90 @@
+/*
+ * ARM Power State and Coordination Interface (PSCI) header
+ *
+ * This header holds common PSCI defines and macros shared
+ * by: ARM kernel, ARM64 kernel, KVM ARM/ARM64 and user space.
+ *
+ * Copyright (C) 2014 Linaro Ltd.
+ * Author: Anup Patel <anup.patel@linaro.org>
+ */
+
+#ifndef _UAPI_LINUX_PSCI_H
+#define _UAPI_LINUX_PSCI_H
+
+/*
+ * PSCI v0.1 interface
+ *
+ * The PSCI v0.1 function numbers are implementation defined.
+ *
+ * Only PSCI return values such as: SUCCESS, NOT_SUPPORTED,
+ * INVALID_PARAMS, and DENIED defined below are applicable
+ * to PSCI v0.1.
+ */
+
+/* PSCI v0.2 interface */
+#define PSCI_0_2_FN_BASE 0x84000000
+#define PSCI_0_2_FN(n) (PSCI_0_2_FN_BASE + (n))
+#define PSCI_0_2_64BIT 0x40000000
+#define PSCI_0_2_FN64_BASE \
+ (PSCI_0_2_FN_BASE + PSCI_0_2_64BIT)
+#define PSCI_0_2_FN64(n) (PSCI_0_2_FN64_BASE + (n))
+
+#define PSCI_0_2_FN_PSCI_VERSION PSCI_0_2_FN(0)
+#define PSCI_0_2_FN_CPU_SUSPEND PSCI_0_2_FN(1)
+#define PSCI_0_2_FN_CPU_OFF PSCI_0_2_FN(2)
+#define PSCI_0_2_FN_CPU_ON PSCI_0_2_FN(3)
+#define PSCI_0_2_FN_AFFINITY_INFO PSCI_0_2_FN(4)
+#define PSCI_0_2_FN_MIGRATE PSCI_0_2_FN(5)
+#define PSCI_0_2_FN_MIGRATE_INFO_TYPE PSCI_0_2_FN(6)
+#define PSCI_0_2_FN_MIGRATE_INFO_UP_CPU PSCI_0_2_FN(7)
+#define PSCI_0_2_FN_SYSTEM_OFF PSCI_0_2_FN(8)
+#define PSCI_0_2_FN_SYSTEM_RESET PSCI_0_2_FN(9)
+
+#define PSCI_0_2_FN64_CPU_SUSPEND PSCI_0_2_FN64(1)
+#define PSCI_0_2_FN64_CPU_ON PSCI_0_2_FN64(3)
+#define PSCI_0_2_FN64_AFFINITY_INFO PSCI_0_2_FN64(4)
+#define PSCI_0_2_FN64_MIGRATE PSCI_0_2_FN64(5)
+#define PSCI_0_2_FN64_MIGRATE_INFO_UP_CPU PSCI_0_2_FN64(7)
+
+/* PSCI v0.2 power state encoding for CPU_SUSPEND function */
+#define PSCI_0_2_POWER_STATE_ID_MASK 0xffff
+#define PSCI_0_2_POWER_STATE_ID_SHIFT 0
+#define PSCI_0_2_POWER_STATE_TYPE_SHIFT 16
+#define PSCI_0_2_POWER_STATE_TYPE_MASK \
+ (0x1 << PSCI_0_2_POWER_STATE_TYPE_SHIFT)
+#define PSCI_0_2_POWER_STATE_AFFL_SHIFT 24
+#define PSCI_0_2_POWER_STATE_AFFL_MASK \
+ (0x3 << PSCI_0_2_POWER_STATE_AFFL_SHIFT)
+
+/* PSCI v0.2 affinity level state returned by AFFINITY_INFO */
+#define PSCI_0_2_AFFINITY_LEVEL_ON 0
+#define PSCI_0_2_AFFINITY_LEVEL_OFF 1
+#define PSCI_0_2_AFFINITY_LEVEL_ON_PENDING 2
+
+/* PSCI v0.2 multicore support in Trusted OS returned by MIGRATE_INFO_TYPE */
+#define PSCI_0_2_TOS_UP_MIGRATE 0
+#define PSCI_0_2_TOS_UP_NO_MIGRATE 1
+#define PSCI_0_2_TOS_MP 2
+
+/* PSCI version decoding (independent of PSCI version) */
+#define PSCI_VERSION_MAJOR_SHIFT 16
+#define PSCI_VERSION_MINOR_MASK \
+ ((1U << PSCI_VERSION_MAJOR_SHIFT) - 1)
+#define PSCI_VERSION_MAJOR_MASK ~PSCI_VERSION_MINOR_MASK
+#define PSCI_VERSION_MAJOR(ver) \
+ (((ver) & PSCI_VERSION_MAJOR_MASK) >> PSCI_VERSION_MAJOR_SHIFT)
+#define PSCI_VERSION_MINOR(ver) \
+ ((ver) & PSCI_VERSION_MINOR_MASK)
+
+/* PSCI return values (inclusive of all PSCI versions) */
+#define PSCI_RET_SUCCESS 0
+#define PSCI_RET_NOT_SUPPORTED -1
+#define PSCI_RET_INVALID_PARAMS -2
+#define PSCI_RET_DENIED -3
+#define PSCI_RET_ALREADY_ON -4
+#define PSCI_RET_ON_PENDING -5
+#define PSCI_RET_INTERNAL_FAILURE -6
+#define PSCI_RET_NOT_PRESENT -7
+#define PSCI_RET_DISABLED -8
+
+#endif /* _UAPI_LINUX_PSCI_H */