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authorCarl Love <cel@us.ibm.com>2008-12-01 16:18:36 -0800
committerRobert Richter <robert.richter@amd.com>2009-01-08 15:51:55 +0100
commit883823291d22e06736f1056da6d8303291d6bbf9 (patch)
treedfa8a4bba8599b8887b66048532e6360bfc6e870 /arch/powerpc/include/asm/cell-pmu.h
parent014cef91ecef9d5e85f9c98a2efbf8a8c4710510 (diff)
downloadlinux-883823291d22e06736f1056da6d8303291d6bbf9.tar.bz2
powerpc/oprofile: IBM CELL: add SPU event profiling support
This patch adds the SPU event based profiling funcitonality for the IBM Cell processor. Previously, the CELL OProfile kernel code supported PPU event, PPU cycle profiling and SPU cycle profiling. The addition of SPU event profiling allows the users to identify where in their SPU code various SPU evnets are occuring. This should help users further identify issues with their code. Note, SPU profiling has some limitations due to HW constraints. Only one event at a time can be used for profiling and SPU event profiling must be time sliced across all of the SPUs in a node. The patch adds a new arch specific file to the OProfile file system. The file has bit 0 set to indicate that the kernel supports SPU event profiling. The user tool must check this file/bit to make sure the kernel supports SPU event profiling before trying to do SPU event profiling. The user tool check is part of the user tool patch for SPU event profiling. Signed-off-by: Carl Love <carll@us.ibm.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
Diffstat (limited to 'arch/powerpc/include/asm/cell-pmu.h')
-rw-r--r--arch/powerpc/include/asm/cell-pmu.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/cell-pmu.h b/arch/powerpc/include/asm/cell-pmu.h
index 8066eede3a0c..b4b7338ad79e 100644
--- a/arch/powerpc/include/asm/cell-pmu.h
+++ b/arch/powerpc/include/asm/cell-pmu.h
@@ -37,9 +37,11 @@
#define CBE_PM_STOP_AT_MAX 0x40000000
#define CBE_PM_TRACE_MODE_GET(pm_control) (((pm_control) >> 28) & 0x3)
#define CBE_PM_TRACE_MODE_SET(mode) (((mode) & 0x3) << 28)
+#define CBE_PM_TRACE_BUF_OVFLW(bit) (((bit) & 0x1) << 17)
#define CBE_PM_COUNT_MODE_SET(count) (((count) & 0x3) << 18)
#define CBE_PM_FREEZE_ALL_CTRS 0x00100000
#define CBE_PM_ENABLE_EXT_TRACE 0x00008000
+#define CBE_PM_SPU_ADDR_TRACE_SET(msk) (((msk) & 0x3) << 9)
/* Macros for the trace_address register. */
#define CBE_PM_TRACE_BUF_FULL 0x00000800