x86: cleanup bogus CONFIG_ACPI_PCI uses

We're building for one case (CONFIG_ACPI_PCI defined) only, yet still
had the other case's code in there. Additionally there was quite a bit
of pseudo-duplication between disabled(!) DMI scan and ACPI boot code.

acpi_pci_disabled had only a single reader, which is off by default
(i.e. must be enable on the command line), so it seems pointless to
keep it.

Signed-off-by: Jan Beulich <jbeulich@novell.com>

xen/arch/x86/acpi/boot.c

@@ -43,21 +43,13 @@
 #include <mach_apic.h>
 #include <mach_mpparse.h>
 
-#define CONFIG_ACPI_PCI
-
 #define BAD_MADT_ENTRY(entry, end) (					    \
 		(!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
 		((struct acpi_subtable_header *)entry)->length != sizeof(*entry))
 
 #define PREFIX			"ACPI: "
 
-#ifdef CONFIG_ACPI_PCI
 bool_t __initdata acpi_noirq;	/* skip ACPI IRQ initialization */
-bool_t __initdata acpi_pci_disabled; /* skip ACPI PCI scan and IRQ initialization */
-#else
-bool_t __initdata acpi_noirq = 1;
-bool_t __initdata acpi_pci_disabled = 1;
-#endif
 bool_t __initdata acpi_ht = 1;	/* enable HT */
 
 bool_t __initdata acpi_lapic;
@@ -572,7 +564,6 @@ static void __init acpi_process_madt(void)
 			 */
 			error = acpi_parse_madt_ioapic_entries();
 			if (!error) {
-				acpi_irq_balance_set(NULL);
 				acpi_ioapic = 1;
 
 				smp_found_config = 1;
@@ -604,16 +595,6 @@ static int __init disable_acpi_irq(struct dmi_system_id *d)
 	return 0;
 }
 
-static int __init disable_acpi_pci(struct dmi_system_id *d)
-{
-	if (!acpi_force) {
-		printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n",
-		       d->ident);
-		/*acpi_disable_pci();*/
-	}
-	return 0;
-}
-
 static int __init dmi_disable_acpi(struct dmi_system_id *d)
 {
 	if (!acpi_force) {
@@ -774,29 +755,6 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
 			       "ASUS A7V ACPI BIOS Revision 1007"),
 		     },
 	 },
-
-	/*
-	 * Boxes that need ACPI PCI IRQ routing and PCI scan disabled
-	 */
-	{			/* _BBN 0 bug */
-	 .callback = disable_acpi_pci,
-	 .ident = "ASUS PR-DLS",
-	 .matches = {
-		     DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
-		     DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"),
-		     DMI_MATCH(DMI_BIOS_VERSION,
-			       "ASUS PR-DLS ACPI BIOS Revision 1010"),
-		     DMI_MATCH(DMI_BIOS_DATE, "03/21/2003")
-		     },
-	 },
-	{
-	 .callback = disable_acpi_pci,
-	 .ident = "Acer TravelMate 36x Laptop",
-	 .matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
-		     DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
-		     },
-	 },
 	{}
 };
 

xen/arch/x86/dmi_scan.c

@@ -229,27 +229,6 @@ static __init __attribute__((unused)) int force_acpi_ht(struct dmi_blacklist *d)
 } 
 #endif
 
-#ifdef	CONFIG_ACPI_PCI
-static __init int disable_acpi_irq(struct dmi_blacklist *d) 
-{
-	if (!acpi_force) {
-		printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n",
-		       d->ident); 	
-		acpi_noirq_set();
-	}
-	return 0;
-}
-static __init int disable_acpi_pci(struct dmi_blacklist *d) 
-{
-	if (!acpi_force) {
-		printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n",
-		       d->ident); 	
-		acpi_disable_pci();
-	}
-	return 0;
-}  
-#endif
-
 /*
  *	Process the DMI blacklists
  */
@@ -354,35 +333,6 @@ static __initdata struct dmi_blacklist dmi_blacklist[]={
 
 #endif	// CONFIG_ACPI_BOOT
 
-#ifdef	CONFIG_ACPI_PCI
-	/*
-	 *	Boxes that need ACPI PCI IRQ routing disabled
-	 */
-
-	{ disable_acpi_irq, "ASUS A7V", {
-			MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"),
-			MATCH(DMI_BOARD_NAME, "<A7V>"),
-			/* newer BIOS, Revision 1011, does work */
-			MATCH(DMI_BIOS_VERSION, "ASUS A7V ACPI BIOS Revision 1007"),
-			NO_MATCH }},
-
-	/*
-	 *	Boxes that need ACPI PCI IRQ routing and PCI scan disabled
-	 */
-	{ disable_acpi_pci, "ASUS PR-DLS", {	/* _BBN 0 bug */
-			MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
-			MATCH(DMI_BOARD_NAME, "PR-DLS"),
-			MATCH(DMI_BIOS_VERSION, "ASUS PR-DLS ACPI BIOS Revision 1010"),
-			MATCH(DMI_BIOS_DATE, "03/21/2003") }},
-
- 	{ disable_acpi_pci, "Acer TravelMate 36x Laptop", {
- 			MATCH(DMI_SYS_VENDOR, "Acer"),
- 			MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
- 			NO_MATCH, NO_MATCH
- 			} },
-
-#endif
-
 	{ NULL, }
 };
 

xen/arch/x86/x86_64/mmconf-fam10h.c

@@ -146,21 +146,14 @@ void __cpuinit fam10h_check_enable_mmcfg(void)
 
 	/* try to make sure that AP's setting is identical to BSP setting */
 	if (val & FAM10H_MMIO_CONF_ENABLE) {
-		unsigned busnbits;
-		busnbits = (val >> FAM10H_MMIO_CONF_BUSRANGE_SHIFT) &
-			FAM10H_MMIO_CONF_BUSRANGE_MASK;
+		u64 base = val & MASK;
 
-		/* only trust the one handle 256 buses, if acpi=off */
-		if (!acpi_pci_disabled || busnbits >= 8) {
-			u64 base = val & MASK;
-
-			if (!fam10h_pci_mmconf_base) {
-				fam10h_pci_mmconf_base = base;
-				return;
-			}
-			if (fam10h_pci_mmconf_base == base)
-				return;
+		if (!fam10h_pci_mmconf_base) {
+			fam10h_pci_mmconf_base = base;
+			return;
 		}
+		if (fam10h_pci_mmconf_base == base)
+			return;
 	}
 
 	/*

xen/include/asm-ia64/linux-xen/asm/acpi.h

@@ -96,8 +96,6 @@ ia64_acpi_release_global_lock (unsigned int *lock)
 	((Acq) = ia64_acpi_release_global_lock(&facs->global_lock))
 
 #define acpi_disabled 0	/* ACPI always enabled on IA64 */
-#define acpi_noirq 0	/* ACPI always enabled on IA64 */
-#define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
 #define acpi_strict 1	/* no ACPI spec workarounds on IA64 */
 #define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
 static inline void disable_acpi(void) { }

xen/include/asm-x86/acpi.h

@@ -79,8 +79,7 @@ int __acpi_release_global_lock(unsigned int *lock);
 	    :"0"(n_hi), "1"(n_lo))
 
 extern bool_t acpi_lapic, acpi_ioapic, acpi_noirq;
-extern bool_t acpi_force, acpi_ht;
-extern bool_t acpi_disabled, acpi_pci_disabled;
+extern bool_t acpi_force, acpi_ht, acpi_disabled;
 extern bool_t acpi_skip_timer_override;
 extern u32 acpi_smi_cmd;
 extern u8 acpi_enable_value, acpi_disable_value;
@@ -90,7 +89,6 @@ static inline void disable_acpi(void)
 {
 	acpi_disabled = 1;
 	acpi_ht = 0;
-	acpi_pci_disabled = 1;
 	acpi_noirq = 1;
 }
 
@@ -98,12 +96,6 @@ static inline void disable_acpi(void)
 #define FIX_ACPI_PAGES 4
 
 static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
-static inline void acpi_disable_pci(void)
-{
-	acpi_pci_disabled = 1;
-	acpi_noirq_set();
-}
-static inline int acpi_irq_balance_set(char *str) { return 0; }
 
 /* routines for saving/restoring kernel state */
 extern int acpi_save_state_mem(void);