vme: include address space in error filtering
Also changes vme_bus_error_handler to take generic address modifier code
instead of raw contents of a device-specific attribute register.
Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Cc: Igor Alekseev <igor.alekseev@itep.ru>
Acked-by: Martyn Welch <martyn@welchs.me.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/vme/vme.c b/drivers/vme/vme.c
index 6803744..2b79cd2 100644
--- a/drivers/vme/vme.c
+++ b/drivers/vme/vme.c
@@ -223,6 +223,39 @@
}
EXPORT_SYMBOL(vme_check_window);
+static u32 vme_get_aspace(int am)
+{
+ switch (am) {
+ case 0x29:
+ case 0x2D:
+ return VME_A16;
+ case 0x38:
+ case 0x39:
+ case 0x3A:
+ case 0x3B:
+ case 0x3C:
+ case 0x3D:
+ case 0x3E:
+ case 0x3F:
+ return VME_A24;
+ case 0x8:
+ case 0x9:
+ case 0xA:
+ case 0xB:
+ case 0xC:
+ case 0xD:
+ case 0xE:
+ case 0xF:
+ return VME_A32;
+ case 0x0:
+ case 0x1:
+ case 0x3:
+ return VME_A64;
+ }
+
+ return 0;
+}
+
/*
* Request a slave image with specific attributes, return some unique
* identifier.
@@ -991,14 +1024,14 @@
EXPORT_SYMBOL(vme_dma_free);
void vme_bus_error_handler(struct vme_bridge *bridge,
- unsigned long long address, u32 attributes)
+ unsigned long long address, int am)
{
struct vme_bus_error *error;
error = kmalloc(sizeof(struct vme_bus_error), GFP_ATOMIC);
if (error) {
+ error->aspace = vme_get_aspace(am);
error->address = address;
- error->attributes = attributes;
list_add_tail(&error->list, &bridge->vme_errors);
} else {
dev_err(bridge->parent,
@@ -1019,19 +1052,13 @@
bound = address + count;
- /*
- * XXX We are currently not looking at the address space when parsing
- * for errors. This is because parsing the Address Modifier Codes
- * is going to be quite resource intensive to do properly. We
- * should be OK just looking at the addresses and this is certainly
- * much better than what we had before.
- */
err_pos = NULL;
/* Iterate through errors */
list_for_each(err_pos, &bridge->vme_errors) {
vme_err = list_entry(err_pos, struct vme_bus_error, list);
- if ((vme_err->address >= address) &&
- (vme_err->address < bound)) {
+ if ((vme_err->aspace == aspace) &&
+ (vme_err->address >= address) &&
+ (vme_err->address < bound)) {
valid = vme_err;
break;
@@ -1054,20 +1081,14 @@
bound = address + count;
- /*
- * XXX We are currently not looking at the address space when parsing
- * for errors. This is because parsing the Address Modifier Codes
- * is going to be quite resource intensive to do properly. We
- * should be OK just looking at the addresses and this is certainly
- * much better than what we had before.
- */
err_pos = NULL;
/* Iterate through errors */
list_for_each_safe(err_pos, temp, &bridge->vme_errors) {
vme_err = list_entry(err_pos, struct vme_bus_error, list);
- if ((vme_err->address >= address) &&
- (vme_err->address < bound)) {
+ if ((vme_err->aspace == aspace) &&
+ (vme_err->address >= address) &&
+ (vme_err->address < bound)) {
list_del(err_pos);
kfree(vme_err);