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=?utf-8?q?_=5BPATCH_2/4=5D_intel-gpu-tools/forcewaked?= =?utf-8?q?=3A_simple_forcewake_app?=

Message ID 1308080767-21176-3-git-send-email-ben@bwidawsk.net
State New, archived
Headers show

Commit Message

Ben Widawsky June 14, 2011, 7:46 p.m. UTC
This app is required for debug features which seem to (undocumented)
reset themselves if/when the GT goes to sleep.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
---
 tools/Makefile.am  |    1 +
 tools/forcewaked.c |   45 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+), 0 deletions(-)
 create mode 100644 tools/forcewaked.c
diff mbox

Patch

diff --git a/tools/Makefile.am b/tools/Makefile.am
index c777778..2a6c82d 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -12,6 +12,7 @@  bin_PROGRAMS = \
 	intel_reg_snapshot \
 	intel_reg_write \
 	intel_reg_read \
+	forcewaked \
 	$(NULL)
 
 noinst_PROGRAMS = \
diff --git a/tools/forcewaked.c b/tools/forcewaked.c
new file mode 100644
index 0000000..2222285
--- /dev/null
+++ b/tools/forcewaked.c
@@ -0,0 +1,45 @@ 
+/*
+ * Copyright © 2011 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:
+ *    Ben Widawsky <ben@bwidawsk.net>
+ *
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <err.h>
+#include <string.h>
+#include <assert.h>
+#include "intel_gpu_tools.h"
+
+int main(int argc, char** argv)
+{
+	int ret;
+
+	ret = intel_register_access_init(intel_get_pci_device(), 1, 1);
+	while(1);
+	intel_register_access_fini();
+	return 0;
+}
+