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[2/3] powerpc: Add dispatch trace log fields to lppaca

Message ID 1236830152.729016.80970422404.2.gpush@pingu (mailing list archive)
State Accepted, archived
Commit 098e8957afd86323db04cbb8deea3bd158f9cc71
Delegated to: Benjamin Herrenschmidt
Headers show

Commit Message

Jeremy Kerr March 12, 2009, 3:55 a.m. UTC 
PAPR v2.3 defines fields in the virtual processor area for a dispatch
trace log (DLT). Since we'd like to use the DLT, add the necessary
fields to struct lppaca.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

---
 arch/powerpc/include/asm/lppaca.h |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h
index b063121..68235f7 100644
--- a/arch/powerpc/include/asm/lppaca.h
+++ b/arch/powerpc/include/asm/lppaca.h
@@ -97,7 +97,7 @@  struct lppaca {
 	u64	saved_gpr4;		// Saved GPR4                   x28-x2F
 	u64	saved_gpr5;		// Saved GPR5                   x30-x37
 
-	u8	reserved4;		// Reserved			x38-x38
+	u8	dtl_enable_mask;	// Dispatch Trace Log mask	x38-x38
 	u8	donate_dedicated_cpu;	// Donate dedicated CPU cycles  x39-x39
 	u8	fpregs_in_use;		// FP regs in use               x3A-x3A
 	u8	pmcregs_in_use;		// PMC regs in use              x3B-x3B
@@ -134,7 +134,9 @@  struct lppaca {
 // CACHE_LINE_4-5 0x0180 - 0x027F Contains PMC interrupt data
 //=============================================================================
 	u32	page_ins;		// CMO Hint - # page ins by OS  x00-x03
-	u8	pmc_save_area[252];	// PMC interrupt Area           x04-xFF
+	u8	reserved8[148];		// Reserved                     x04-x97
+	volatile u64 dtl_idx;		// Dispatch Trace Log head idx	x98-x9F
+	u8	reserved9[96];		// Reserved                     xA0-xFF
 } __attribute__((__aligned__(0x400)));
 
 extern struct lppaca lppaca[];