20 Nov
2012
20 Nov
'12
3:23 p.m.
https://bugs.freedesktop.org/show_bug.cgi?id=56139
--- Comment #41 from Alex Deucher agd5f@yahoo.com --- (In reply to comment #40)
In evergreen_reg.h, /* CRTC blocks at 0x6df0, 0x79f0, 0x105f0, 0x111f0, 0x11df0, 0x129f0 */ is not used to define the registers following this comment it. It seems to correspond to display controller offsets.
Is the comment at the wrong place or are the registers not defined with the right addresses?
They are correct. The crtc blocks are repeated at different offsets within the register aperture. So if you wanted to access EVERGREEN_CRTC_CONTROL for crtc 0, you access: EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, for crtc 1: EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, etc.
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