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authorMichael Ellerman <michael@ellerman.id.au>2007-09-17 16:05:00 +1000
committerPaul Mackerras <paulus@samba.org>2007-10-03 13:25:27 +1000
commit0b94a1eeeeb3542d046b928ca01fcd4bf0ea7587 (patch)
tree04ada4951ef2a386d16f00d06bd78a4ce04ff65a
parentca786f83a97d7897b013b1e9b290c9010b69af9b (diff)
[POWERPC] Store the base address in dcr_host_t
In its current form, dcr_map() doesn't remember the base address you passed it, which means you need to store it somewhere else. Rather than adding the base to another struct it seems simpler to store it in the dcr_host_t. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
-rw-r--r--arch/powerpc/sysdev/dcr.c2
-rw-r--r--include/asm-powerpc/dcr-mmio.h6
-rw-r--r--include/asm-powerpc/dcr-native.h6
3 files changed, 10 insertions, 4 deletions
diff --git a/arch/powerpc/sysdev/dcr.c b/arch/powerpc/sysdev/dcr.c
index e82d54de8a8d..ab11c0b29024 100644
--- a/arch/powerpc/sysdev/dcr.c
+++ b/arch/powerpc/sysdev/dcr.c
@@ -104,7 +104,7 @@ u64 of_translate_dcr_address(struct device_node *dev,
dcr_host_t dcr_map(struct device_node *dev, unsigned int dcr_n,
unsigned int dcr_c)
{
- dcr_host_t ret = { .token = NULL, .stride = 0 };
+ dcr_host_t ret = { .token = NULL, .stride = 0, .base = dcr_n };
u64 addr;
pr_debug("dcr_map(%s, 0x%x, 0x%x)\n",
diff --git a/include/asm-powerpc/dcr-mmio.h b/include/asm-powerpc/dcr-mmio.h
index 5dbfca8dde36..6b82c3ba495a 100644
--- a/include/asm-powerpc/dcr-mmio.h
+++ b/include/asm-powerpc/dcr-mmio.h
@@ -23,7 +23,11 @@
#include <asm/io.h>
-typedef struct { void __iomem *token; unsigned int stride; } dcr_host_t;
+typedef struct {
+ void __iomem *token;
+ unsigned int stride;
+ unsigned int base;
+} dcr_host_t;
#define DCR_MAP_OK(host) ((host).token != NULL)
diff --git a/include/asm-powerpc/dcr-native.h b/include/asm-powerpc/dcr-native.h
index 05af081222f6..f41058c0f6cb 100644
--- a/include/asm-powerpc/dcr-native.h
+++ b/include/asm-powerpc/dcr-native.h
@@ -22,11 +22,13 @@
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
-typedef struct {} dcr_host_t;
+typedef struct {
+ unsigned int base;
+} dcr_host_t;
#define DCR_MAP_OK(host) (1)
-#define dcr_map(dev, dcr_n, dcr_c) ((dcr_host_t){})
+#define dcr_map(dev, dcr_n, dcr_c) ((dcr_host_t){ .base = (dcr_n) })
#define dcr_unmap(host, dcr_n, dcr_c) do {} while (0)
#define dcr_read(host, dcr_n) mfdcr(dcr_n)
#define dcr_write(host, dcr_n, value) mtdcr(dcr_n, value)