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From: Pete Zaitcev <zaitcev@redhat.com>
To: linux-kernel@vger.kernel.org
Subject: Patch to make ymfpci legacy address 16 bits
Date: Tue, 8 May 2001 20:37:05 -0400	[thread overview]
Message-ID: <20010508203705.A6496@devserv.devel.redhat.com> (raw)

Hi:

I found that every time I run a 2.4 on my laptop, APM locks up
the machine. Apparently, legacy YMF code enabled decoding of
10 bits of I/O address. A call to APM BIOS touched that and
somehow the system locked up.

If Pavel Roskin, Daisuke Nagano or someone else do not mind,
I want this in stock kernel.

-- Pete

--- linux-2.4.4/drivers/sound/ymfpci.c	Thu Apr 26 22:17:27 2001
+++ linux-2.4.4-niph/drivers/sound/ymfpci.c	Tue May  8 16:46:58 2001
@@ -2059,9 +2059,10 @@
 	}
 
 	if (mpuio >= 0 || oplio >= 0) {
-		v = 0x003e;
+		/* 0x0020: 1 - 10 bits of I/O address decoded, 0 - 16 bits. */
+		v = 0x001e;
 		pci_write_config_word(pcidev, PCIR_LEGCTRL, v);
-	
+
 		switch (pcidev->device) {
 		case PCI_DEVICE_ID_YAMAHA_724:
 		case PCI_DEVICE_ID_YAMAHA_740:

             reply	other threads:[~2001-05-09  0:37 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-05-09  0:37 Pete Zaitcev [this message]
  -- strict thread matches above, loose matches on Subject: below --
2001-05-09 20:17 Patch to make ymfpci legacy address 16 bits Pavel Roskin
2001-05-09 20:23 ` Jeff Garzik
2001-05-09 20:52   ` Pavel Roskin
2001-05-09 21:08     ` Jeff Garzik
2001-05-09 23:43       ` Pavel Roskin
2001-05-09 23:53       ` Zach Brown
2001-05-10  2:53   ` Albert D. Cahalan
2001-05-10 11:54     ` mirabilos

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