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authorDave Airlie <airlied@redhat.com>2015-02-20 09:21:36 +1000
committerAlex Deucher <alexander.deucher@amd.com>2015-03-19 12:26:44 -0400
commit875711f0e217b00cba1a851eee01c4e33041a91c (patch)
tree94b7f9745a466d224b3030f1a0b6a18f94c92d48 /drivers/gpu/drm/radeon/radeon.h
parentfd99a0943ffaa0320ea4f69d09ed188f950c0432 (diff)
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drm/radeon: program auxch directly (v2)
The atombios tables have an unfortunate restriction on only being able to write 12 bytes, MST really wants 16-bytes here, and since the hw can do it, we should just write directly to it. This uses a module option to allow for it now, and maybe we should provide the old code as a fallback for a while. v2: (agd5f) - move registers to a proper register header - only enable on DCE5+ - enable by default on DCE5+ - Switch pad to aux mode before using it - reformat instance handling to better match the rest of the driver Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon.h')
-rw-r--r--drivers/gpu/drm/radeon/radeon.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 88bcada..26a339b 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -111,6 +111,7 @@ extern int radeon_deep_color;
extern int radeon_use_pflipirq;
extern int radeon_bapm;
extern int radeon_backlight;
+extern int radeon_auxch;
/*
* Copy from radeon_drv.h so we don't have to include both and have conflicting
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