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[IA64] Move perfmon tables from thread_struct to pfm_context

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This patch renders thread_struct->pmcs[] and thread_struct->pmds[]
OBSOLETE. The actual table is moved to pfm_context structure which
saves space in thread_struct (in turn saving space in task_struct
which frees up more space for kernel stacks).

Signed-off-by: Stephane Eranian <[email protected]>
Signed-off-by: Anil S Keshavamurthy <[email protected]>
Signed-off-by: Tony Luck <[email protected]>
This commit is contained in:
Keshavamurthy Anil S 2006-09-26 12:03:13 -07:00 • committed by Tony Luck
commit 35589a8fa8
2 changed files with 50 additions and 75 deletions
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12
include/asm-ia64/processor.h
View file

@ -20,12 +20,6 @@
#include <asm/ustack.h>
#define IA64_NUM_DBG_REGS 8
/*
* Limits for PMC and PMD are set to less than maximum architected values
* but should be sufficient for a while
*/
#define IA64_NUM_PMC_REGS 64
#define IA64_NUM_PMD_REGS 64
#define DEFAULT_MAP_BASE __IA64_UL_CONST(0x2000000000000000)
#define DEFAULT_TASK_SIZE __IA64_UL_CONST(0xa000000000000000)
@ -263,13 +257,9 @@ struct thread_struct {
# define INIT_THREAD_IA32
#endif /* CONFIG_IA32_SUPPORT */
#ifdef CONFIG_PERFMON
__u64 pmcs[IA64_NUM_PMC_REGS];
__u64 pmds[IA64_NUM_PMD_REGS];
void *pfm_context; /* pointer to detailed PMU context */
unsigned long pfm_needs_checking; /* when >0, pending perfmon work on kernel exit */
# define INIT_THREAD_PM .pmcs = {0UL, }, \
.pmds = {0UL, }, \
.pfm_context = NULL, \
# define INIT_THREAD_PM .pfm_context = NULL, \
.pfm_needs_checking = 0UL,
#else
# define INIT_THREAD_PM