maestro3 mpsafe patch

[Norikatsu Shigemura]

On Mon, 9 May 2005 16:54:16 +0900
Pyun YongHyeon <yongari at rndsoft.co.kr> wrote:
> The patch was tested on an old notebook. Becasue the notebook is UP
> machine I had no chance to run the patch on real SMP hardware. :(
> The patch is available at:
> http://people.freebsd.org/~yongari/maestro3.mpsafe.patch.0509

	I have a Onkyo SE-120PCI powered by ESS Maestro-M3i, and
	it is installed into following SMP environment.

FreeBSD 6.0-CURRENT #5: Sat May 14 20:47:35 JST 2005
    nork at nadesico.ninth-nine.com:/usr/obj/usr/src/sys/NADESICO
ACPI APIC Table: <VIA694 AWRDACPI>
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Pentium(R) III CPU family      1133MHz (1129.08-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x6b1  Stepping = 1
  Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
real memory  = 1610547200 (1535 MB)
avail memory = 1568923648 (1496 MB)
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs


	So I confirmed yongari's patch for mpsafe maestro3(4)
	with playing xmms or mplayer,  But I don't know effectiveness
	of it.  Becuase I didn't contact a panic after and before
	applying it.

BEFORE:
pcm0: <ESS Technology Maestro3> port 0xd000-0xd0ff mem 0xfb112000-0xfb113fff irq 18 at device 8.0 on pci0
pcm0: [GIANT-LOCKED]
pcm0: <SigmaTel STAC9744/45 AC97 Codec>

AFTER:
pcm0: <ESS Technology Maestro3> port 0xd000-0xd0ff mem 0xfb112000-0xfb113fff irq 18 at device 8.0 on pci0
pcm0: <SigmaTel STAC9744/45 AC97 Codec>