On Mon, 23 Sep 2013 01:48:39 +0100 Ken Moffat <[email protected]> wrote:
> But a few months ago I managed to build a recent firefox, and to > get a 3.10 kernel which would stay up (the ppc64 defconfig didn't, > turned out to be the HighRes timers, I think). I'm not sure which mac you have, but right now ondemand isn't enabled for the iMac G5 iSignt PowerMac 12,1. Here's a patch I put together from nabble's archives (I'm testing it after the kernel builds). Have you ran across this? http://marc.info/?t=137461124900005&r=1&w=2 ---Begin Patch diff -Naur linux-3.10.13.orig/arch/powerpc/platforms/powermac/cpufreq_64.c linux-3.10.13/arch/powerpc/platforms/powermac/cpufreq_64.c --- linux-3.10.13.orig/arch/powerpc/platforms/powermac/cpufreq_64.c 2013-09-27 00:18:49.000000000 +0000 +++ linux-3.10.13/arch/powerpc/platforms/powermac/cpufreq_64.c 2013-09-27 16:25:54.671507612 +0000 @@ -141,7 +141,7 @@ pmf_call_one(pfunc_vdnap0_complete, &args); if (done) break; - msleep(1); + usleep_range(1000, 1000); } if (done == 0) printk(KERN_WARNING "cpufreq: Timeout in clock slewing !\n"); @@ -240,7 +240,7 @@ if (pfunc_cpu1_volt_low) pmf_call_one(pfunc_cpu1_volt_low, NULL); } - msleep(10); /* should be faster , to fix */ + usleep_range(10000, 10000); /* should be faster , to fix */ } /* @@ -285,7 +285,7 @@ pmf_call_one(pfunc_slewing_done, &args); if (done) break; - msleep(1); + usleep_range(500, 500); } if (done == 0) printk(KERN_WARNING "cpufreq: Timeout in clock slewing !\n"); @@ -399,6 +399,7 @@ if (of_machine_is_compatible("PowerMac8,1") || of_machine_is_compatible("PowerMac8,2") || of_machine_is_compatible("PowerMac9,1")) + of_machine_is_compatible("PowerMac12,1")) use_volts_smu = 1; else if (of_machine_is_compatible("PowerMac11,2")) use_volts_vdnap = 1; @@ -674,8 +675,11 @@ g5_cpu_freqs[0].frequency = max_freq; g5_cpu_freqs[1].frequency = min_freq; + /* Based on a measurement on Xserve G5, rounded up. */ + transition_latency = 10 * NSEC_PER_MSEC; + + /* Set callbacks */ - transition_latency = CPUFREQ_ETERNAL; g5_switch_volt = g5_pfunc_switch_volt; g5_switch_freq = g5_pfunc_switch_freq; g5_query_freq = g5_pfunc_query_freq; --End Patch Sincerely, William Harrington <[email protected]> _______________________________________________ Clfs-dev mailing list [email protected] http://lists.cross-lfs.org/listinfo.cgi/clfs-dev-cross-lfs.org
