xf86-video-intel: src/reg_dumper/idle.c src/reg_dumper/Makefile.am

[Keith Packard]

 src/reg_dumper/Makefile.am |   13 +++-
 src/reg_dumper/idle.c      |  130 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 141 insertions(+), 2 deletions(-)

New commits:
commit b9c3fa79d9fd48c34536f92e6c1c70fe3a619410
Author: Keith Packard <keithp at keithp.com>
Date:   Fri Jan 11 15:51:00 2008 -0800

    Add intel_idle to measure GPU load ratio.
    
    Samples GPU idle register to detect when the GPU is busy; prints out the
    number of busy samples per 100 total samples once per second.

diff --git a/src/reg_dumper/Makefile.am b/src/reg_dumper/Makefile.am
index aee26d0..bba388f 100644
--- a/src/reg_dumper/Makefile.am
+++ b/src/reg_dumper/Makefile.am
@@ -1,4 +1,4 @@
-noinst_PROGRAMS = intel_reg_dumper
+noinst_PROGRAMS = intel_reg_dumper intel_idle
 
 intel_reg_dumper_SOURCES = \
 	main.c \
@@ -6,7 +6,16 @@ intel_reg_dumper_SOURCES = \
 	xprintf.c \
 	../i830_debug.c
 
+intel_idle_SOURCES = \
+	idle.c \
+	reg_dumper.h \
+	xprintf.c \
+	../i830_debug.c
+
 intel_reg_dumper_LDADD = $(PCIACCESS_LIBS)
 
-intel_reg_dumper_CFLAGS = $(PCIACCESS_CFLAGS) $(WARN_CFLAGS) \
+intel_idle_LDADD = $(PCIACCESS_LIBS)
+
+AM_CFLAGS = $(PCIACCESS_CFLAGS) $(WARN_CFLAGS) \
 	-I$(srcdir)/.. -DREG_DUMPER
+
diff --git a/src/reg_dumper/idle.c b/src/reg_dumper/idle.c
new file mode 100644
index 0000000..ec083fd
--- /dev/null
+++ b/src/reg_dumper/idle.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright © 2007 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Eric Anholt <eric at anholt.net>
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <pciaccess.h>
+#include <err.h>
+#include <unistd.h>
+
+#include "reg_dumper.h"
+#include "../i810_reg.h"
+
+int main(int argc, char **argv)
+{
+    struct pci_device *dev;
+    I830Rec i830;
+    ScrnInfoRec scrn;
+    int err, mmio_bar;
+    void *mmio;
+
+    err = pci_system_init();
+    if (err != 0) {
+	fprintf(stderr, "Couldn't initialize PCI system: %s\n", strerror(err));
+	exit(1);
+    }
+
+    /* Grab the graphics card */
+    dev = pci_device_find_by_slot(0, 0, 2, 0);
+    if (dev == NULL)
+	errx(1, "Couldn't find graphics card");
+
+    err = pci_device_probe(dev);
+    if (err != 0) {
+	fprintf(stderr, "Couldn't probe graphics card: %s\n", strerror(err));
+	exit(1);
+    }
+
+    if (dev->vendor_id != 0x8086)
+	errx(1, "Graphics card is non-intel");
+
+    i830.PciInfo = &i830.pci_info_rec;
+    i830.PciInfo->chipType = dev->device_id;
+
+    i830.pci_dev = dev;
+
+    mmio_bar = IS_I9XX((&i830)) ? 0 : 1;
+
+    err = pci_device_map_range (dev,
+				dev->regions[mmio_bar].base_addr,
+				dev->regions[mmio_bar].size, 
+				PCI_DEV_MAP_FLAG_WRITABLE,
+				&mmio);
+    
+    if (err != 0) {
+	fprintf(stderr, "Couldn't map MMIO region: %s\n", strerror(err));
+	exit(1);
+    }
+    i830.mmio = mmio;
+
+    scrn.scrnIndex = 0;
+    scrn.pI830 = &i830;
+
+    {
+        I830Ptr pI830 = I830PTR((&scrn));
+
+	CARD32  idle_value = 0xffe5fafe;
+
+	for (;;)
+	{
+	    CARD32	busy = 0;
+	    int		i;
+
+	    for (i = 0; i < 100; i++) {
+		if (INREG (INST_DONE_I965) != idle_value)
+		    busy++;
+		usleep (10000);
+	    }
+	    printf ("load: %d\n", busy);
+	}
+    }
+
+    return 0;
+}
+
+void xf86DrvMsg(int scrnIndex, int severity, const char *format, ...)
+{
+    va_list va;
+
+    switch (severity) {
+    case X_INFO:
+	printf("(II): ");
+	break;
+    case X_WARNING:
+	printf("(WW): ");
+	break;
+    case X_ERROR:
+	printf("(EE): ");
+	break;
+    }
+
+    va_start(va, format);
+    vprintf(format, va);
+    va_end(va);
+}