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path: root/drivers/gpu/drm/nouveau/nv50_calc.c
AgeCommit message (Collapse)Author
2011-05-16drm/nva3/clk: better pll calculation when no fractional fb div availableBen Skeggs
The core/mem/shader clocks don't support the fractional feedback divider, causing our calculated clocks to be off by quite a lot in some cases. To solve this we will switch to a search-based algorithm when fN is NULL. For my NVA8 at PL3, this actually generates identical cooefficients to the binary driver. Hopefully that's a good sign, and that does not break VPLL calculation for someone.. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nva3: fix overflow in fixed point math used for pll calculationBen Skeggs
And a slight tweak which gets us closer to VBIOS-calculated numbers. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-05-19drm/nv50: support fractional feedback divider on newer chipsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>