Attachment #15255 for bug #10138




 */


#include <linux/dmi.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>

	return NULL;
}

/* http://bugzilla.kernel.org/show_bug.cgi?id=4773 */
static struct dmi_system_id medion_md9580[] = {
	{
		.ident = "Medion MD9580-F laptop",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
			DMI_MATCH(DMI_PRODUCT_NAME, "A555"),
		},
	},
	{ }
};

/* http://bugzilla.kernel.org/show_bug.cgi?id=5044 */
static struct dmi_system_id dell_optiplex[] = {
	{
		.ident = "Dell Optiplex GX1",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX1 600S+"),
		},
	},
	{ }
};

/* http://bugzilla.kernel.org/show_bug.cgi?id=10138 */
static struct dmi_system_id hp_t5710[] = {
	{
		.ident = "HP t5710",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
			DMI_MATCH(DMI_PRODUCT_NAME, "hp t5000 series"),
			DMI_MATCH(DMI_BOARD_NAME, "098Ch"),
		},
	},
	{ }
};

struct prt_quirk {
	struct dmi_system_id	*system;
	unsigned int		segment;
	unsigned int		bus;
	unsigned int		device;
	unsigned char		pin;
	char			*source;	/* according to BIOS */
	char			*actual_source;
};

/*
 * These systems have incorrect _PRT entries.  The BIOS claims the PCI
 * interrupt at the listed segment/bus/device/pin is connected to the first
 * link device, but it is actually connected to the second.
 */
static struct prt_quirk prt_quirks[] = {
	{ medion_md9580, 0, 0, 9, 'A',
		"\\_SB_.PCI0.ISA.LNKA",
		"\\_SB_.PCI0.ISA.LNKB"},
	{ dell_optiplex, 0, 0, 0xd, 'A',
		"\\_SB_.LNKB",
		"\\_SB_.LNKA"},
	{ hp_t5710, 0, 0, 1, 'A',
		"\\_SB_.PCI0.LNK1",
		"\\_SB_.PCI0.LNK3"},
};

static void
do_prt_fixups(struct acpi_prt_entry *entry, struct acpi_pci_routing_table *prt)
{
	int i;
	struct prt_quirk *quirk;

	for (i = 0; i < ARRAY_SIZE(prt_quirks); i++) {
		quirk = &prt_quirks[i];

		/* All current quirks involve link devices, not GSIs */
		if (!prt->source)
			continue;

		if (dmi_check_system(quirk->system) &&
		    entry->id.segment == quirk->segment &&
		    entry->id.bus == quirk->bus &&
		    entry->id.device == quirk->device &&
		    entry->pin + 'A' == quirk->pin &&
		    !strcmp(prt->source, quirk->source) &&
		    strlen(prt->source) >= strlen(quirk->actual_source)) {
			printk(KERN_WARNING PREFIX "firmware reports "
				"%04x:%02x:%02x[%c] connected to %s; "
				"changing to %s\n",
				entry->id.segment, entry->id.bus,
				entry->id.device, 'A' + entry->pin,
				prt->source, quirk->actual_source);
			strcpy(prt->source, quirk->actual_source);
		}
	}
}

static int
acpi_pci_irq_add_entry(acpi_handle handle,
		       int segment, int bus, struct acpi_pci_routing_table *prt)

	entry->id.function = prt->address & 0xFFFF;
	entry->pin = prt->pin;

	do_prt_fixups(entry, prt);

	/*
	 * Type 1: Dynamic
	 * ---------------

Return to bug 10138

Lines 25-30 Link Here

(-)a/drivers/acpi/pci_irq.c (+98 lines)
25	*/	25	*/
26		26
27		27
		28	#include <linux/dmi.h>
28	#include <linux/kernel.h>	29	#include <linux/kernel.h>
29	#include <linux/module.h>	30	#include <linux/module.h>
30	#include <linux/init.h>	31	#include <linux/init.h>
Lines 76-81 static struct acpi_prt_entry *acpi_pci_irq_find_prt_entry(int segment, Link Here
76	return NULL;	77	return NULL;
77	}	78	}
78		79
		80	/* http://bugzilla.kernel.org/show_bug.cgi?id=4773 */
		81	static struct dmi_system_id medion_md9580[] = {
		82	{
		83	.ident = "Medion MD9580-F laptop",
		84	.matches = {
		85	DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
		86	DMI_MATCH(DMI_PRODUCT_NAME, "A555"),
		87	},
		88	},
		89	{ }
		90	};
		91
		92	/* http://bugzilla.kernel.org/show_bug.cgi?id=5044 */
		93	static struct dmi_system_id dell_optiplex[] = {
		94	{
		95	.ident = "Dell Optiplex GX1",
		96	.matches = {
		97	DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
		98	DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX1 600S+"),
		99	},
		100	},
		101	{ }
		102	};
		103
		104	/* http://bugzilla.kernel.org/show_bug.cgi?id=10138 */
		105	static struct dmi_system_id hp_t5710[] = {
		106	{
		107	.ident = "HP t5710",
		108	.matches = {
		109	DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
		110	DMI_MATCH(DMI_PRODUCT_NAME, "hp t5000 series"),
		111	DMI_MATCH(DMI_BOARD_NAME, "098Ch"),
		112	},
		113	},
		114	{ }
		115	};
		116
		117	struct prt_quirk {
		118	struct dmi_system_id *system;
		119	unsigned int segment;
		120	unsigned int bus;
		121	unsigned int device;
		122	unsigned char pin;
		123	char source; / according to BIOS */
		124	char *actual_source;
		125	};
		126
		127	/*
		128	* These systems have incorrect _PRT entries. The BIOS claims the PCI
		129	* interrupt at the listed segment/bus/device/pin is connected to the first
		130	* link device, but it is actually connected to the second.
		131	*/
		132	static struct prt_quirk prt_quirks[] = {
		133	{ medion_md9580, 0, 0, 9, 'A',
		134	"\\_SB_.PCI0.ISA.LNKA",
		135	"\\_SB_.PCI0.ISA.LNKB"},
		136	{ dell_optiplex, 0, 0, 0xd, 'A',
		137	"\\_SB_.LNKB",
		138	"\\_SB_.LNKA"},
		139	{ hp_t5710, 0, 0, 1, 'A',
		140	"\\_SB_.PCI0.LNK1",
		141	"\\_SB_.PCI0.LNK3"},
		142	};
		143
144	static void
145	do_prt_fixups(struct acpi_prt_entry entry, struct acpi_pci_routing_table prt)
146	{
147	int i;
148	struct prt_quirk *quirk;
149
150	for (i = 0; i < ARRAY_SIZE(prt_quirks); i++) {
151	quirk = &prt_quirks[i];
152
153	/* All current quirks involve link devices, not GSIs */
154	if (!prt->source)
155	continue;
156
157	if (dmi_check_system(quirk->system) &&
158	entry->id.segment == quirk->segment &&
159	entry->id.bus == quirk->bus &&
160	entry->id.device == quirk->device &&
161	entry->pin + 'A' == quirk->pin &&
162	!strcmp(prt->source, quirk->source) &&
163	strlen(prt->source) >= strlen(quirk->actual_source)) {
164	printk(KERN_WARNING PREFIX "firmware reports "
165	"%04x:%02x:%02x[%c] connected to %s; "
166	"changing to %s\n",
167	entry->id.segment, entry->id.bus,
168	entry->id.device, 'A' + entry->pin,
169	prt->source, quirk->actual_source);
170	strcpy(prt->source, quirk->actual_source);
171	}
172	}
173	}
174
79	static int	175	static int
80	acpi_pci_irq_add_entry(acpi_handle handle,	176	acpi_pci_irq_add_entry(acpi_handle handle,
81	int segment, int bus, struct acpi_pci_routing_table *prt)	177	int segment, int bus, struct acpi_pci_routing_table *prt)
Lines 96-101 acpi_pci_irq_add_entry(acpi_handle handle, Link Here
96	entry->id.function = prt->address & 0xFFFF;	192	entry->id.function = prt->address & 0xFFFF;
97	entry->pin = prt->pin;	193	entry->pin = prt->pin;
98		194
		195	do_prt_fixups(entry, prt);
		196
99	/*	197	/*
100	* Type 1: Dynamic	198	* Type 1: Dynamic
101	* ---------------	199	* ---------------