[coreboot-gerrit] Patch set updated for coreboot: 5992742 x86: Fix pointer arithmetic regressions from MMIO changes

Kevin Paul Herbert (kph@meraki.net) gerrit at coreboot.org
Wed Feb 25 21:43:39 CET 2015


Kevin Paul Herbert (kph at meraki.net) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/8530

-gerrit

commit 59927423db085ce2b442521a48fcdadf173e7624
Author: Kevin Paul Herbert <kph at meraki.net>
Date:   Wed Feb 25 00:36:51 2015 -0800

    x86: Fix pointer arithmetic regressions from MMIO changes
    
    During the development of commit bde6d30 (x86: Change MMIO addr
    in readN(addr)/writeN(addr, val) to pointer), there were several iterations
    and patterns tried. An intermediate pattern was the use of u32 pointers,
    and division by sizeof(u32). Some of these did not get properly
    changed to pointer types of length 1, causing a regression in
    the Intel Ibex Peak SATA driver, fixed in commit 9b5f137
    (Intel ibexpeak: Fix SATA configuration).
    
    Other regressions of this pattern are fixed here. I audited all changes
    to u32 types, and the other ones are safe.
    
    Change-Id: I9e73ac8f4329df8bf0cdd1a14759f0280f974052
    Signed-off-by: Kevin Paul Herbert <kph at meraki.net>
---
 src/soc/intel/fsp_baytrail/southcluster.c          | 4 ++--
 src/southbridge/amd/agesa/hudson/enable_usbdebug.c | 2 +-
 src/southbridge/amd/amd8111/nic.c                  | 2 +-
 src/southbridge/intel/fsp_rangeley/lpc.c           | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/soc/intel/fsp_baytrail/southcluster.c b/src/soc/intel/fsp_baytrail/southcluster.c
index 878535f..ec2f94f 100644
--- a/src/soc/intel/fsp_baytrail/southcluster.c
+++ b/src/soc/intel/fsp_baytrail/southcluster.c
@@ -91,8 +91,8 @@ static void sc_enable_ioapic(struct device *dev)
 	 * Set SCI IRQ to IRQ9
 	 */
 	write32(ilb_base + ILB_OIC, 0x100);  /* AEN */
-	reg32 = read32(ilb_base + (ILB_OIC/sizeof(u32))); /* Read back per BWG */
-	write32(ilb_base + (ILB_ACTL/sizeof(u32)), 0);  /* ACTL bit 2:0 SCIS IRQ9 */
+	reg32 = read32(ilb_base + ILB_OIC); /* Read back per BWG */
+	write32(ilb_base + ILB_ACTL, 0);  /* ACTL bit 2:0 SCIS IRQ9 */
 
 	*ioapic_index = 0;
 	*ioapic_data = (1 << 25);
diff --git a/src/southbridge/amd/agesa/hudson/enable_usbdebug.c b/src/southbridge/amd/agesa/hudson/enable_usbdebug.c
index 5463d2b..9deeb45 100644
--- a/src/southbridge/amd/agesa/hudson/enable_usbdebug.c
+++ b/src/southbridge/amd/agesa/hudson/enable_usbdebug.c
@@ -48,7 +48,7 @@ void pci_ehci_dbg_set_port(pci_devfn_t dev, unsigned int port)
 	reg32 &= ~(0xf << 28);
 	reg32 |= (port << 28);
 	reg32 |= (1 << 27); /* Enable Debug Port port number remapping. */
-	write32(base_regs + (DEBUGPORT_MISC_CONTROL / sizeof(u32)), reg32);
+	write32(base_regs + DEBUGPORT_MISC_CONTROL, reg32);
 }
 
 
diff --git a/src/southbridge/amd/amd8111/nic.c b/src/southbridge/amd/amd8111/nic.c
index 21df6c0..05ca871 100644
--- a/src/southbridge/amd/amd8111/nic.c
+++ b/src/southbridge/amd/amd8111/nic.c
@@ -11,7 +11,7 @@
 #include "amd8111.h"
 
 
-#define CMD3		(0x54/(sizeof(u32)))
+#define CMD3		0x54
 
 typedef enum {
 	VAL3			= (1 << 31),   /* VAL bit for byte 3 */
diff --git a/src/southbridge/intel/fsp_rangeley/lpc.c b/src/southbridge/intel/fsp_rangeley/lpc.c
index 8f29670..80673a6 100644
--- a/src/southbridge/intel/fsp_rangeley/lpc.c
+++ b/src/southbridge/intel/fsp_rangeley/lpc.c
@@ -52,7 +52,7 @@ static void soc_enable_apic(struct device *dev)
 	u32 reg32;
 	volatile u32 *ioapic_index = (volatile u32 *)(IO_APIC_ADDR);
 	volatile u32 *ioapic_data = (volatile u32 *)(IO_APIC_ADDR + 0x10);
-	u32 *ilb_base = (u32 *)(pci_read_config32(dev, IBASE) & ~0x0f);
+	u8 *ilb_base = (u8 *)(pci_read_config32(dev, IBASE) & ~0x0f);
 
 	/*
 	 * Enable ACPI I/O and power management.



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