From: Linus Torvalds <torvalds@g5.osdl.org>
Date: Mon, 15 Aug 2005 01:21:30 +0000 (-0700)
Subject: Revert PCIBIOS_MIN_IO changes for 2.6.13
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2ba84684e8cf6f980e4e95a2300f53a505eb794e;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

Revert PCIBIOS_MIN_IO changes for 2.6.13

This reverts commits

  71db63acff69618b3d9d3114bd061938150e146b
	[PATCH] increase PCIBIOS_MIN_IO on x86

and

  0b2bfb4e7ff61f286676867c3508569bea6fbf7a
    ACPI: increase PCIBIOS_MIN_IO on x86

since Lukas Sandströ<lukass@etek.chalmers.se> reports that this breaks
his on-board nvidia audio.

We should re-visit this later. For now we revert the change

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/acpi/motherboard.c b/drivers/acpi/motherboard.c
index 2934475d67d..61ea70742d4 100644
--- a/drivers/acpi/motherboard.c
+++ b/drivers/acpi/motherboard.c
@@ -43,7 +43,7 @@ ACPI_MODULE_NAME		("acpi_motherboard")
  */
 #define IS_RESERVED_ADDR(base, len) \
 	(((len) > 0) && ((base) > 0) && ((base) + (len) < IO_SPACE_LIMIT) \
-	&& ((base) + (len) > 0x1000))
+	&& ((base) + (len) > PCIBIOS_MIN_IO))
 
 /*
  * Clearing the flag (IORESOURCE_BUSY) allows drivers to use
diff --git a/include/asm-i386/pci.h b/include/asm-i386/pci.h
index 2cbab30734d..78c85985aee 100644
--- a/include/asm-i386/pci.h
+++ b/include/asm-i386/pci.h
@@ -18,9 +18,11 @@ extern unsigned int pcibios_assign_all_busses(void);
 #define pcibios_scan_all_fns(a, b)	0
 
 extern unsigned long pci_mem_start;
-#define PCIBIOS_MIN_IO		0x4000
+#define PCIBIOS_MIN_IO		0x1000
 #define PCIBIOS_MIN_MEM		(pci_mem_start)
 
+#define PCIBIOS_MIN_CARDBUS_IO	0x4000
+
 void pcibios_config_init(void);
 struct pci_bus * pcibios_scan_root(int bus);
 
diff --git a/include/asm-x86_64/pci.h b/include/asm-x86_64/pci.h
index 9c4527eb55e..eeb3088a1c9 100644
--- a/include/asm-x86_64/pci.h
+++ b/include/asm-x86_64/pci.h
@@ -22,9 +22,11 @@ extern unsigned int pcibios_assign_all_busses(void);
 extern int no_iommu, force_iommu;
 
 extern unsigned long pci_mem_start;
-#define PCIBIOS_MIN_IO		0x4000
+#define PCIBIOS_MIN_IO		0x1000
 #define PCIBIOS_MIN_MEM		(pci_mem_start)
 
+#define PCIBIOS_MIN_CARDBUS_IO	0x4000
+
 void pcibios_config_init(void);
 struct pci_bus * pcibios_scan_root(int bus);
 extern int (*pci_config_read)(int seg, int bus, int dev, int fn, int reg, int len, u32 *value);