[PATCH][2.6.11-mm4] perfctr cleanups 2/3: ppc32
From: Mikael Pettersson (mikpe_at_csd.uu.se)
Date: 03/18/05
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Date: Fri, 18 Mar 2005 09:50:50 +0100 (MET) To: akpm@osdl.org
ppc32-specific cleanups for perfctr:
- ppc.c: don't initialise obsolete perfctr_info.cpu_type,
use DEFINE_SPINLOCK().
- <asm-ppc/perfctr.h>: remove cpu_type constants and
PERFCTR_CPU_VERSION unused in the kernel, use
explicitly-sized integers in user-visible types, make
perfctr_cpu_control kernel-private.
Signed-off-by: Mikael Pettersson <mikpe@csd.uu.se>
drivers/perfctr/ppc.c | 8 +++-----
include/asm-ppc/perfctr.h | 43 ++++++++++++++++++-------------------------
2 files changed, 21 insertions(+), 30 deletions(-)
diff -rupN linux-2.6.11-mm4/drivers/perfctr/ppc.c linux-2.6.11-mm4.perfctr-2.7.12/drivers/perfctr/ppc.c
--- linux-2.6.11-mm4/drivers/perfctr/ppc.c 2005-03-17 19:39:42.000000000 +0100
+++ linux-2.6.11-mm4.perfctr-2.7.12/drivers/perfctr/ppc.c 2005-03-18 00:50:05.000000000 +0100
@@ -1,7 +1,7 @@
-/* $Id: ppc.c,v 1.30 2004/11/24 00:23:27 mikpe Exp $
+/* $Id: ppc.c,v 1.35 2005/03/17 23:50:05 mikpe Exp $
* PPC32 performance-monitoring counters driver.
*
- * Copyright (C) 2004 Mikael Pettersson
+ * Copyright (C) 2004-2005 Mikael Pettersson
*/
#include <linux/config.h>
#include <linux/init.h>
@@ -43,7 +43,7 @@ static enum pm_type pm_type;
static unsigned int new_id(void)
{
- static spinlock_t lock = SPIN_LOCK_UNLOCKED;
+ static DEFINE_SPINLOCK(lock);
static unsigned int counter;
int id;
@@ -1005,7 +1005,6 @@ static int __init known_init(void)
return -ENODEV;
}
perfctr_info.cpu_features = features;
- perfctr_info.cpu_type = 0; /* user-space should inspect PVR */
perfctr_cpu_name = known_name;
perfctr_info.cpu_khz = detect_cpu_khz(pll_type);
perfctr_ppc_init_tests(have_mmcr1);
@@ -1021,7 +1020,6 @@ static int __init unknown_init(void)
if (!khz)
return -ENODEV;
perfctr_info.cpu_features = PERFCTR_FEATURE_RDTSC;
- perfctr_info.cpu_type = 0;
perfctr_cpu_name = unknown_name;
perfctr_info.cpu_khz = khz;
pm_type = PM_NONE;
diff -rupN linux-2.6.11-mm4/include/asm-ppc/perfctr.h linux-2.6.11-mm4.perfctr-2.7.12/include/asm-ppc/perfctr.h
--- linux-2.6.11-mm4/include/asm-ppc/perfctr.h 2005-03-17 19:39:43.000000000 +0100
+++ linux-2.6.11-mm4.perfctr-2.7.12/include/asm-ppc/perfctr.h 2005-03-18 00:58:54.000000000 +0100
@@ -1,30 +1,25 @@
-/* $Id: perfctr.h,v 1.12 2004/11/24 00:20:57 mikpe Exp $
+/* $Id: perfctr.h,v 1.16 2005/03/17 23:58:54 mikpe Exp $
* PPC32 Performance-Monitoring Counters driver
*
- * Copyright (C) 2004 Mikael Pettersson
+ * Copyright (C) 2004-2005 Mikael Pettersson
*/
#ifndef _ASM_PPC_PERFCTR_H
#define _ASM_PPC_PERFCTR_H
-/* perfctr_info.cpu_type values */
-#define PERFCTR_PPC_GENERIC 0
-#define PERFCTR_PPC_604 1
-#define PERFCTR_PPC_604e 2
-#define PERFCTR_PPC_750 3
-#define PERFCTR_PPC_7400 4
-#define PERFCTR_PPC_7450 5
+#include <asm/types.h>
struct perfctr_sum_ctrs {
- unsigned long long tsc;
- unsigned long long pmc[8];
+ __u64 tsc;
+ __u64 pmc[8]; /* the size is not part of the user ABI */
};
struct perfctr_cpu_control_header {
- unsigned int tsc_on;
- unsigned int nractrs; /* # of a-mode counters */
- unsigned int nrictrs; /* # of i-mode counters */
+ __u32 tsc_on;
+ __u32 nractrs; /* number of accumulation-mode counters */
+ __u32 nrictrs; /* number of interrupt-mode counters */
};
+#ifdef __KERNEL__
struct perfctr_cpu_control {
struct perfctr_cpu_control_header header;
unsigned int mmcr0;
@@ -34,21 +29,22 @@ struct perfctr_cpu_control {
unsigned int ireset[8]; /* [0,0x7fffffff], for i-mode counters, physical indices */
unsigned int pmc_map[8]; /* virtual to physical index map */
};
+#endif
struct perfctr_cpu_state {
- unsigned int cstatus;
+ __u32 cstatus;
struct { /* k1 is opaque in the user ABI */
- unsigned int id;
- int isuspend_cpu;
+ __u32 id;
+ __s32 isuspend_cpu;
} k1;
/* The two tsc fields must be inlined. Placing them in a
sub-struct causes unwanted internal padding on x86-64. */
- unsigned int tsc_start;
- unsigned long long tsc_sum;
+ __u32 tsc_start;
+ __u64 tsc_sum;
struct {
- unsigned int map;
- unsigned int start;
- unsigned long long sum;
+ __u32 map;
+ __u32 start;
+ __u64 sum;
} pmc[8]; /* the size is not part of the user ABI */
#ifdef __KERNEL__
struct perfctr_cpu_control control;
@@ -109,9 +105,6 @@ static inline unsigned int perfctr_cstat
#endif
#define si_pmc_ovf_mask _sifields._pad[0] /* XXX: use an unsigned field later */
-/* version number for user-visible CPU-specific data */
-#define PERFCTR_CPU_VERSION 0 /* XXX: not yet cast in stone */
-
#ifdef __KERNEL__
#if defined(CONFIG_PERFCTR)
-
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