New patch to review for coreboot: device: Follow on to large BAR fix

[Martin Roth]

Martin Roth ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/12803

-gerrit

commit 53530dd0b195b8e5f3fe65f2cab6ea7daa12db2f
Author: Martin Roth 
Date:   Fri Dec 25 13:38:43 2015 -0700

device: Follow on to large BAR fix

- Make clear_device_resources static
    - Fix resource limit to align with CPU's physical address space
    - Exit early from pci_read_bases if a device is disabled.

Change-Id: Ia8c0138d9e01dfb612e4981bdcda91746e804b19
    Signed-off-by: Martin Roth 
---
 src/device/device_util.c | 2 +-
 src/device/pci_device.c  | 9 +++++----
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/device/device_util.c b/src/device/device_util.c
index 5d0ba50..dd545ba 100644
--- a/src/device/device_util.c
+++ b/src/device/device_util.c
@@ -995,7 +995,7 @@ struct device *find_pci_dev_max_mem(void)
 /** @brief clear all resources for a specified device.  Leave index and next.
  *
  */
-void clear_device_resources(struct device *dev)
+static void clear_device_resources(struct device *dev)
 {
    struct resource *res;

diff --git a/src/device/pci_device.c b/src/device/pci_device.c
index dfc290b..7be709a 100644
--- a/src/device/pci_device.c
+++ b/src/device/pci_device.c
@@ -279,8 +279,8 @@ struct resource *pci_get_resource(struct device *dev, unsigned long index)
    			/* 1MB limit. */
    			resource->limit = 0x000fffffUL;
    		} else if (attr == PCI_BASE_ADDRESS_MEM_LIMIT_64) {
-				/* 64bit limit. */
-				resource->limit = 0xffffffffffffffffULL;
+				/* 64bit limit. Limit to Physical address space */
+				resource->limit = (0x1ULL << CONFIG_CPU_ADDR_BITS) - 1;
    			resource->flags |= IORESOURCE_PCI64;
    		} else {
    			/* Invalid value. */
@@ -362,12 +362,13 @@ static void pci_read_bases(struct device *dev, unsigned int howmany)
 {
    unsigned long index;

+	if (dev->enabled == 0)
+		return;
+
    for (index = PCI_BASE_ADDRESS_0;
         (index < PCI_BASE_ADDRESS_0 + (howmany << 2));) {
    	struct resource *resource;
    	resource = pci_get_resource(dev, index);
-		if (dev->enabled == 0)
-			return;
    	index += (resource->flags & IORESOURCE_PCI64) ? 8 : 4;
    }