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445a1d3e24
Some Supermicro BIOSes describe a SATA PCI BAR as a motherboard resource. The PNP system driver claims motherboard resources, and this prevents the sata_nv driver from requesting it later. This patch disables the PNP0C01/PNP0C02 resources so they won't be claimed by the PNP system driver, so they'll available for sata_nv. This fixes the bugs below, where sata_nv detects only two out of four SATA drives. The signature includes dmesg lines similar to these: pnp: 00:09: iomem range 0xdfefc000-0xdfefcfff has been reserved pnp: 00:09: iomem range 0xdfefd000-0xdfefd3ff has been reserved pnp: 00:09: iomem range 0xdfefe000-0xdfefe3ff has been reserved PCI: Unable to reserve mem region #6:1000@dfefd000 for device 0000:80:07.0 sata_nv: probe of 0000:80:07.0 failed with error -16 PCI: Unable to reserve mem region #6:1000@dfefe000 for device 0000:80:08.0 sata_nv: probe of 0000:80:08.0 failed with error -16 References: https://bugzilla.redhat.com/show_bug.cgi?id=280641 https://bugzilla.redhat.com/show_bug.cgi?id=313491 http://lkml.org/lkml/2008/1/9/449 http://thread.gmane.org/gmane.linux.acpi.devel/27312 This is post-2.6.24 material. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
196 lines
5.1 KiB
C
196 lines
5.1 KiB
C
/*
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* This file contains quirk handling code for PnP devices
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* Some devices do not report all their resources, and need to have extra
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* resources added. This is most easily accomplished at initialisation time
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* when building up the resource structure for the first time.
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*
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* Copyright (c) 2000 Peter Denison <peterd@pnd-pc.demon.co.uk>
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*
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* Heavily based on PCI quirks handling which is
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*
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* Copyright (c) 1999 Martin Mares <mj@ucw.cz>
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/slab.h>
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#include <linux/pnp.h>
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#include <linux/io.h>
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#include <linux/dmi.h>
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#include <linux/kallsyms.h>
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#include "base.h"
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static void quirk_awe32_resources(struct pnp_dev *dev)
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{
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struct pnp_port *port, *port2, *port3;
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struct pnp_option *res = dev->dependent;
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/*
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* Unfortunately the isapnp_add_port_resource is too tightly bound
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* into the PnP discovery sequence, and cannot be used. Link in the
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* two extra ports (at offset 0x400 and 0x800 from the one given) by
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* hand.
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*/
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for (; res; res = res->next) {
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port2 = pnp_alloc(sizeof(struct pnp_port));
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if (!port2)
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return;
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port3 = pnp_alloc(sizeof(struct pnp_port));
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if (!port3) {
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kfree(port2);
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return;
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}
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port = res->port;
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memcpy(port2, port, sizeof(struct pnp_port));
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memcpy(port3, port, sizeof(struct pnp_port));
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port->next = port2;
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port2->next = port3;
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port2->min += 0x400;
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port2->max += 0x400;
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port3->min += 0x800;
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port3->max += 0x800;
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}
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printk(KERN_INFO "pnp: AWE32 quirk - adding two ports\n");
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}
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static void quirk_cmi8330_resources(struct pnp_dev *dev)
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{
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struct pnp_option *res = dev->dependent;
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unsigned long tmp;
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for (; res; res = res->next) {
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struct pnp_irq *irq;
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struct pnp_dma *dma;
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for (irq = res->irq; irq; irq = irq->next) { // Valid irqs are 5, 7, 10
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tmp = 0x04A0;
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bitmap_copy(irq->map, &tmp, 16); // 0000 0100 1010 0000
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}
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for (dma = res->dma; dma; dma = dma->next) // Valid 8bit dma channels are 1,3
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if ((dma->flags & IORESOURCE_DMA_TYPE_MASK) ==
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IORESOURCE_DMA_8BIT)
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dma->map = 0x000A;
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}
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printk(KERN_INFO "pnp: CMI8330 quirk - fixing interrupts and dma\n");
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}
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static void quirk_sb16audio_resources(struct pnp_dev *dev)
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{
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struct pnp_port *port;
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struct pnp_option *res = dev->dependent;
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int changed = 0;
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/*
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* The default range on the mpu port for these devices is 0x388-0x388.
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* Here we increase that range so that two such cards can be
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* auto-configured.
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*/
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for (; res; res = res->next) {
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port = res->port;
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if (!port)
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continue;
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port = port->next;
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if (!port)
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continue;
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port = port->next;
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if (!port)
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continue;
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if (port->min != port->max)
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continue;
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port->max += 0x70;
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changed = 1;
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}
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if (changed)
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printk(KERN_INFO
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"pnp: SB audio device quirk - increasing port range\n");
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}
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static void quirk_supermicro_h8dce_system(struct pnp_dev *dev)
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{
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int i;
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static struct dmi_system_id supermicro_h8dce[] = {
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{
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.ident = "Supermicro H8DCE",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Supermicro"),
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DMI_MATCH(DMI_PRODUCT_NAME, "H8DCE"),
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},
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},
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{ }
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};
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if (!dmi_check_system(supermicro_h8dce))
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return;
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/*
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* On the Supermicro H8DCE, there's a system device with resources
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* that overlap BAR 6 of the built-in SATA PCI adapter. If the PNP
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* system device claims them, the sata_nv driver won't be able to.
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* More details at:
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* https://bugzilla.redhat.com/show_bug.cgi?id=280641
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* https://bugzilla.redhat.com/show_bug.cgi?id=313491
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* http://lkml.org/lkml/2008/1/9/449
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* http://thread.gmane.org/gmane.linux.acpi.devel/27312
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*/
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for (i = 0; i < PNP_MAX_MEM; i++) {
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if (pnp_mem_valid(dev, i) && pnp_mem_len(dev, i) &&
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(pnp_mem_start(dev, i) & 0xdfef0000) == 0xdfef0000) {
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dev_warn(&dev->dev, "disabling 0x%llx-0x%llx to prevent"
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" conflict with sata_nv PCI device\n",
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(unsigned long long) pnp_mem_start(dev, i),
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(unsigned long long) (pnp_mem_start(dev, i) +
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pnp_mem_len(dev, i) - 1));
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pnp_mem_flags(dev, i) = 0;
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}
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}
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}
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/*
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* PnP Quirks
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* Cards or devices that need some tweaking due to incomplete resource info
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*/
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static struct pnp_fixup pnp_fixups[] = {
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/* Soundblaster awe io port quirk */
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{"CTL0021", quirk_awe32_resources},
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{"CTL0022", quirk_awe32_resources},
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{"CTL0023", quirk_awe32_resources},
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/* CMI 8330 interrupt and dma fix */
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{"@X@0001", quirk_cmi8330_resources},
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/* Soundblaster audio device io port range quirk */
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{"CTL0001", quirk_sb16audio_resources},
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{"CTL0031", quirk_sb16audio_resources},
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{"CTL0041", quirk_sb16audio_resources},
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{"CTL0042", quirk_sb16audio_resources},
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{"CTL0043", quirk_sb16audio_resources},
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{"CTL0044", quirk_sb16audio_resources},
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{"CTL0045", quirk_sb16audio_resources},
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{"PNP0c01", quirk_supermicro_h8dce_system},
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{"PNP0c02", quirk_supermicro_h8dce_system},
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{""}
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};
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void pnp_fixup_device(struct pnp_dev *dev)
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{
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int i = 0;
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void (*quirk)(struct pnp_dev *);
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while (*pnp_fixups[i].id) {
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if (compare_pnp_id(dev->id, pnp_fixups[i].id)) {
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quirk = pnp_fixups[i].quirk_function;
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#ifdef DEBUG
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dev_dbg(&dev->dev, "calling quirk 0x%p", quirk);
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print_fn_descriptor_symbol(": %s()\n",
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(unsigned long) *quirk);
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#endif
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(*quirk)(dev);
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}
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i++;
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}
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}
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