[radeon r100] when ring test fails, provide users with option to test

From	Pavel Machek <pavel@ucw.cz>
Newsgroups	linux.kernel
Subject	[radeon r100] when ring test fails, provide users with option to test
Date	2015-11-28 22:00 +0100
Message-ID	<qzUL7-5iU-5@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Ring test failure is often caused by too high agpmode. Tell the user
what to try.

Signed-off-by: Pavel Machek <pavel@ucw.cz>

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 238b13f..32b1917 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -3665,7 +3665,7 @@ int r100_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
 	if (i < rdev->usec_timeout) {
 		DRM_INFO("ring test succeeded in %d usecs\n", i);
 	} else {
-		DRM_ERROR("radeon: ring test failed (scratch(0x%04X)=0x%08X)\n",
+		DRM_ERROR("radeon: ring test failed (scratch(0x%04X)=0x%08X), try radeon.agpmode=1?\n",
 			  scratch, tmp);
 		r = -EINVAL;
 	}

-- 
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[radeon r100] when ring test fails, provide users with option to test Pavel Machek <pavel@ucw.cz> - 2015-11-28 22:00 +0100
  Re: [radeon r100] when ring test fails, provide users with option to  test Pavel Machek <pavel@ucw.cz> - 2015-11-29 23:30 +0100
    Re: [radeon r100] when ring test fails, provide users with option to  test Christian König <christian.koenig@amd.com> - 2015-11-30 09:50 +0100

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