Driver for getting at performance counters. These manifest them

selves as "sc at sbus" and a couple of registers on psycho (sabre
doesn't appear to have these registers).

1 files changed, 120 insertions, 0 deletions

diff --git a/sys/arch/sparc64/dev/uperfvar.h b/sys/arch/sparc64/dev/uperfvar.h
new file mode 100644
index 00000000000..1ead587a5dc
--- /dev/null
+++ b/sys/arch/sparc64/dev/uperfvar.h
@@ -0,0 +1,120 @@
+/*	$OpenBSD: uperfvar.h,v 1.1 2002/01/30 23:58:02 jason Exp $	*/
+
+/*
+ * Copyright (c) 2002 Jason L. Wright (jason@thought.net)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Jason L. Wright
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef _KERNEL
+
+struct uperf_softc {
+	struct device sc_dv;
+	void *usc_cookie;		/* cookie to pass upwards */
+	int (*usc_getcntsrc)(void *, int, u_int *, u_int *);
+	int (*usc_setcntsrc)(void *, int, u_int, u_int);
+	int (*usc_clrcnt)(void *, int);
+	int (*usc_getcnt)(void *, int, u_int32_t *, u_int32_t *);
+	struct uperf_src *usc_srcs;
+};
+
+/* Table should be terminated with us_src = -1 */
+struct uperf_src {
+	int	us_src;		/* source number (user) */
+	int	us_flags;	/* counters this source is valid for */
+	u_int32_t us_val;	/* value to put in register */
+};
+
+#endif
+
+#define	UPERF_CNT0		1
+#define	UPERF_CNT1		2
+
+#define	UPERFSRC_SYSCK		1	/* system clock count */
+#define	UPERFSRC_PRALL		2	/* # of p-requests, all srcs */
+#define	UPERFSRC_PRP0		3	/* # of p-requests, processor 0 */
+#define	UPERFSRC_PRU2S		4	/* # of p-requests, U2S */
+#define	UPERFSRC_UPA128		5	/* # cycles UPA 128bit bus busy */
+#define	UPERFSRC_UPA64		6	/* # cycles UPA 64bit bus busy */
+#define	UPERFSRC_PIOS		7	/* # cycles stalled during PIO */
+#define	UPERFSRC_MEMRI		8	/* # memory requests issued */
+#define	UPERFSRC_MCBUSY		9	/* # cycles mem ctrlr busy */
+#define	UPERFSRC_PXSH		10	/* # cyc stalled for pending xact scoreboard hit */
+#define	UPERFSRC_P0CWMR		11	/* # coherent wr miss req, Proc0 */
+#define	UPERFSRC_P1CWMR		12	/* # coherent wr miss req, Proc1 */
+#define	UPERFSRC_CIT		13	/* # coherent intervention xacts */
+#define	UPERFSRC_U2SDAT		14	/* # data xacts from U2S */
+#define	UPERFSRC_CRXI		15	/* # coherent read xacts issued */
+#define	UPERFSRC_RDP0		16	/* read requests from Proc0 */
+#define	UPERFSRC_P0CRMR		17	/* # coherent rd miss req, Proc0 */
+#define	UPERFSRC_P0PIO		18	/* PIO accesses from Proc 0 */
+#define	UPERFSRC_MEMRC		19	/* # memory requests completed */
+#define	UPERFSRC_P1RR		20	/* Proc 1 read requests */
+#define	UPERFSRC_CRMP1		21	/* Proc 1 coherent read misses */
+#define	UPERFSRC_PIOP1		22	/* Proc 1 PIO accesses */
+#define	UPERFSRC_CWXI		23	/* coherent write xacts issued */
+#define	UPERFSRC_RP0		24	/* read requests from Proc 0 */
+#define	UPERFSRC_SDVRA		25	/* streaming dvma rds, bus A */
+#define	UPERFSRC_SDVWA		26	/* streaming dvma wrs, bus A */
+#define	UPERFSRC_CDVRA		27	/* consistent dvma rds, bus A */
+#define	UPERFSRC_CDVWA		28	/* consistent dvma wrs, bus A */
+#define	UPERFSRC_SBMA		29	/* streaming buffer misses, A */
+#define	UPERFSRC_DVA		30	/* cycles A granted to dvma */
+#define	UPERFSRC_DVWA		31	/* words xfered on bus A */
+#define	UPERFSRC_PIOA		32	/* pio cycles on bus A */
+#define	UPERFSRC_SDVRB		33	/* streaming dvma rds, bus A */
+#define	UPERFSRC_SDVWB		34	/* streaming dvma wrs, bus A */
+#define	UPERFSRC_CDVRB		35	/* consistent dvma rds, bus A */
+#define	UPERFSRC_CDVWB		36	/* consistent dvma wrs, bus A */
+#define	UPERFSRC_SBMB		37	/* streaming buffer misses, A */
+#define	UPERFSRC_DVB		38	/* cycles A granted to dvma */
+#define	UPERFSRC_DVWB		39	/* words xfered on bus A */
+#define	UPERFSRC_PIOB		40	/* pio cycles on bus A */
+#define	UPERFSRC_TLBMISS	41	/* tlb misses */
+#define	UPERFSRC_NINTRS		42	/* number of interrupts */
+#define	UPERFSRC_INACK		43	/* interrupt nacks on UPA */
+#define	UPERFSRC_PIOR		44	/* PIO read xfers */
+#define	UPERFSRC_PIOW		45	/* PIO write xfers */
+#define	UPERFSRC_MERGE		46	/* merge buffer xacts */
+#define	UPERFSRC_TBLA		47	/* dma reties for tblwalk, A */
+#define	UPERFSRC_STCA		48	/* dma reties for tblwalk, A */
+#define	UPERFSRC_TBLB		49	/* dma reties for tblwalk, B */
+#define	UPERFSRC_STCB		50	/* dma reties for tblwalk, B */
+
+struct uperf_io {
+	int cnt_flags;
+	int cnt_src0;
+	int cnt_src1;
+	u_int32_t cnt_val0;
+	u_int32_t cnt_val1;
+};
+
+#define	UPIO_GCNTSRC	_IOWR('U', 0, struct uperf_io)	/* get cntr src */
+#define	UPIO_SCNTSRC	_IOWR('U', 1, struct uperf_io)	/* set cntr src */
+#define	UPIO_CLRCNT	_IOWR('U', 2, struct uperf_io)	/* clear cntrs */
+#define	UPIO_GETCNT	_IOWR('U', 3, struct uperf_io)	/* get cntrs */