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Date: Mon, 28 Aug 2000 18:14:44 +0900 (JST)
From: hiramoto@phys.chs.nihon-u.ac.jp
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Subject: kern/20895: sym driver doesn't work for SYM53C895A
Sender: owner-freebsd-bugs@FreeBSD.ORG
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>Number:         20895
>Category:       kern
>Synopsis:       sym driver doesn't work for SYM53C895A
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Aug 28 02:20:03 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     Hisashi Hiramoto
>Release:        FreeBSD 4.1-STABLE i386
>Organization:
>Environment:

	4.1-stable and 5.0-current (x86)
	Compaq Prliant ML 330 (on-board chips sym53c895a ultra2 scsi,
	no ide disk)
	
>Description:

	sym0: <895a> port 0x1000-0x10ff mem 0xb1100000-0xb1101fff,0xb1400000-0xb14003ff irq 15 at device 4.0 on pci1
	sym0: failed to allocate RAM resouces

	Fatal trap 12: page fault while in kernel mode
		.....

	The legacy(?) ncr driver works, so the generic kernel of 4.1 is OK,
	but it works as ultra, not as ultra-2.

>How-To-Repeat:

	In my system (Compaq Prliant ML 330), 5.0 generic kernel and
	4.1-stable kernel with sym (without ncr) reliably reproduce
	this problem.  I have no idea whether this is generic for any
	sytems having Symbios 53c895a or not,  because I have no other
	system with 53c895a.

>Fix:

	The following patch works at least for me, although I don't know
	this is the right fix. (Non-FreeBSD_Bus_Io_Abstraction part is
	untested)


*** sym_hipd.c.orig	Mon Jul  3 15:21:53 2000
--- sym_hipd.c	Mon Aug 28 02:39:07 2000
***************
*** 9057,9066 ****
  	    (command & PCIM_CMD_MEMEN) != 0) {
  #ifdef FreeBSD_Bus_Io_Abstraction
  		int regs_id = SYM_PCI_RAM;
! 		if (np->features & FE_64BIT)
  			regs_id = SYM_PCI_RAM64;
! 		np->ram_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &regs_id,
! 						 0, ~0, 1, RF_ACTIVE);
  		if (!np->ram_res) {
  			device_printf(dev,"failed to allocate RAM resources\n");
  			goto attach_failed;
--- 9057,9072 ----
  	    (command & PCIM_CMD_MEMEN) != 0) {
  #ifdef FreeBSD_Bus_Io_Abstraction
  		int regs_id = SYM_PCI_RAM;
! 		if (np->features & FE_64BIT) {
  			regs_id = SYM_PCI_RAM64;
! 			np->ram_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
! 						&regs_id, 0, ~0, 1, RF_ACTIVE);
! 			if (!np->ram_res)
! 				regs_id = SYM_PCI_RAM;
! 		}
! 		if (regs_id == SYM_PCI_RAM)
! 			np->ram_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
! 						&regs_id, 0, ~0, 1, RF_ACTIVE);
  		if (!np->ram_res) {
  			device_printf(dev,"failed to allocate RAM resources\n");
  			goto attach_failed;
***************
*** 9074,9082 ****
  #else
  		vm_offset_t vaddr, paddr;
  		int regs_id = SYM_PCI_RAM;
! 		if (np->features & FE_64BIT)
  			regs_id = SYM_PCI_RAM64;
! 		if (!pci_map_mem(pci_tag, regs_id, &vaddr, &paddr)) {
  			printf("%s: failed to map RAM window\n", sym_name(np));
  			goto attach_failed;
  		}
--- 9080,9092 ----
  #else
  		vm_offset_t vaddr, paddr;
  		int regs_id = SYM_PCI_RAM;
! 		if (np->features & FE_64BIT) {
  			regs_id = SYM_PCI_RAM64;
! 			if (!pci_map_mem(pci_tag, regs_id, &vaddr, &paddr))
! 				regs_id = SYM_PCI_RAM;
! 		}
! 		if (regs_id == SYM_PCI_RAM &&
! 		    !pci_map_mem(pci_tag, regs_id, &vaddr, &paddr)) {
  			printf("%s: failed to map RAM window\n", sym_name(np));
  			goto attach_failed;
  		}

>Release-Note:
>Audit-Trail:
>Unformatted:


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