2013/2/21 ron minnich <[email protected]>: > I just updated it. > https://code.google.com/p/i915tool/ > I had to wait, starting some time ago, because there was too much info > appearing in it about this: > http://techland.time.com/2013/02/21/googles-chomebook-pixel-the-chromebook-goes-high-end/ > > and I got nervous. > > Status: you'll see in as we upstream the coreboot that we can turn on > graphics in coreboot now without a vbios. The code is crude and I'm in > the process of creating a replacement. The tool to create the real > code is in the i915tool and is called gen915code.c. Note that it does > lot of annotation, turning things like this: > {W, 1, "", _PIPEACONF, 0x00000040, }, > > {W, 1, "", _PIPEACONF, (/* PIPECONF_FRAME_START_DELAY_MASK */0x0<<27)| > PIPECONF_BPP_6 | PIPECONF_DITHER_TYPE_SP |0x00000 > > What this means is that moving to other laptops *may* be easier. > > We've got kernel patches too, and the result is that we've (in an > experiment) reduced boot time to a login prompt to less than 4 seconds > (after firmware is finished). > > My goal is to make that better, but we'll see. But we chopped a full 3 > seconds off of boot. > > I am sorry this i915tool is a mess. I really wish it were better. I > offer it in the state it is because I'm hoping it can be used, but > it's very experimental and represents a lot of lessons learned the > hard way. Part of this mess is that my ideas about how to do the work > have changed so much since I started it. > > Here are docs, which are also not very good, sorry! > https://docs.google.com/document/d/1g8FMob25VZYxbWri2iFB8YiSL8gwF9vKJH3HGxr0xQU/edit?usp=sharing > > Questions to me. Hope that some part of this is useful. >
nice! -- Christian Gmeiner, MSc -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
