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authorOlof Johansson <olof@lixom.net>2015-04-03 16:38:43 -0400
committerOlof Johansson <olof@lixom.net>2015-04-03 16:38:43 -0400
commit47f36e4921ae11dccf3163f75f70bb55686780f1 (patch)
tree770560b54cbf2f3b8ae64aa5f202d25aa6c33c56 /arch/arc/include/asm/processor.h
parent63fad06a2733f78f7565a436a97848aee8099600 (diff)
parent874c571414d5617f4042298986b6a826816ee885 (diff)
Merge tag 'arm-perf-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into next/drivers
Merge "arm-cci PMU updates for 4.1" from Will Deacon: CCI-400 PMU updates This series reworks some of the CCI-400 PMU code so that it can be used on both ARM and ARM64-based systems, without the need to boot in secure mode on the latter. This paves the way for CCI-500 support in future. * tag 'arm-perf-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux: arm-cci: Fix CCI PMU event validation arm-cci: Split the code for PMU vs driver support arm-cci: Get rid of secure transactions for PMU driver arm-cci: Abstract the CCI400 PMU specific definitions arm-cci: Rearrange code for splitting PMU vs driver code drivers: cci: reject groups spanning multiple HW PMUs + Linux 4.0-rc4 Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arc/include/asm/processor.h')
-rw-r--r--arch/arc/include/asm/processor.h14
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/arc/include/asm/processor.h b/arch/arc/include/asm/processor.h
index 4e547296831d..52312cb5dbe2 100644
--- a/arch/arc/include/asm/processor.h
+++ b/arch/arc/include/asm/processor.h
@@ -47,9 +47,6 @@ struct thread_struct {
47/* Forward declaration, a strange C thing */ 47/* Forward declaration, a strange C thing */
48struct task_struct; 48struct task_struct;
49 49
50/* Return saved PC of a blocked thread */
51unsigned long thread_saved_pc(struct task_struct *t);
52
53#define task_pt_regs(p) \ 50#define task_pt_regs(p) \
54 ((struct pt_regs *)(THREAD_SIZE + (void *)task_stack_page(p)) - 1) 51 ((struct pt_regs *)(THREAD_SIZE + (void *)task_stack_page(p)) - 1)
55 52
@@ -72,18 +69,21 @@ unsigned long thread_saved_pc(struct task_struct *t);
72#define release_segments(mm) do { } while (0) 69#define release_segments(mm) do { } while (0)
73 70
74#define KSTK_EIP(tsk) (task_pt_regs(tsk)->ret) 71#define KSTK_EIP(tsk) (task_pt_regs(tsk)->ret)
72#define KSTK_ESP(tsk) (task_pt_regs(tsk)->sp)
75 73
76/* 74/*
77 * Where abouts of Task's sp, fp, blink when it was last seen in kernel mode. 75 * Where abouts of Task's sp, fp, blink when it was last seen in kernel mode.
78 * Look in process.c for details of kernel stack layout 76 * Look in process.c for details of kernel stack layout
79 */ 77 */
80#define KSTK_ESP(tsk) (tsk->thread.ksp) 78#define TSK_K_ESP(tsk) (tsk->thread.ksp)
81 79
82#define KSTK_REG(tsk, off) (*((unsigned int *)(KSTK_ESP(tsk) + \ 80#define TSK_K_REG(tsk, off) (*((unsigned int *)(TSK_K_ESP(tsk) + \
83 sizeof(struct callee_regs) + off))) 81 sizeof(struct callee_regs) + off)))
84 82
85#define KSTK_BLINK(tsk) KSTK_REG(tsk, 4) 83#define TSK_K_BLINK(tsk) TSK_K_REG(tsk, 4)
86#define KSTK_FP(tsk) KSTK_REG(tsk, 0) 84#define TSK_K_FP(tsk) TSK_K_REG(tsk, 0)
85
86#define thread_saved_pc(tsk) TSK_K_BLINK(tsk)
87 87
88extern void start_thread(struct pt_regs * regs, unsigned long pc, 88extern void start_thread(struct pt_regs * regs, unsigned long pc,
89 unsigned long usp); 89 unsigned long usp);