[POWERPC] Only export __mtdcr/__mfdcr if CONFIG_PPC_DCR is set
authorKumar Gala <galak@kernel.crashing.org>
Mon, 11 Dec 2006 05:15:47 +0000 (23:15 -0600)
committerKumar Gala <galak@kernel.crashing.org>
Mon, 11 Dec 2006 05:15:47 +0000 (23:15 -0600)
On 85xx we don't build in dcr support because the core doesn't implement the
instructions.  This caused problems when building an 85xx kernel.  Additionally
made it so we only build __mtdcr/__mfdcr if we are CONFIG_PPC_DCR_NATIVE.

The 85xx build issue wasPointed out by Dai Haruki.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
arch/powerpc/kernel/ppc_ksyms.c
arch/powerpc/sysdev/Makefile
include/asm-powerpc/dcr-native.h
include/asm-powerpc/dcr.h
include/asm-ppc/reg_booke.h

index 9179f07..95776b6 100644 (file)
@@ -208,7 +208,7 @@ EXPORT_SYMBOL(mmu_hash_lock); /* For MOL */
 extern long *intercept_table;
 EXPORT_SYMBOL(intercept_table);
 #endif /* CONFIG_PPC_STD_MMU_32 */
-#if defined(CONFIG_40x) || defined(CONFIG_BOOKE)
+#ifdef CONFIG_PPC_DCR_NATIVE
 EXPORT_SYMBOL(__mtdcr);
 EXPORT_SYMBOL(__mfdcr);
 #endif
index 6cc3459..04d4917 100644 (file)
@@ -5,7 +5,8 @@ endif
 obj-$(CONFIG_MPIC)             += mpic.o
 obj-$(CONFIG_PPC_INDIRECT_PCI) += indirect_pci.o
 obj-$(CONFIG_PPC_MPC106)       += grackle.o
-obj-$(CONFIG_PPC_DCR)          += dcr.o dcr-low.o
+obj-$(CONFIG_PPC_DCR)          += dcr.o
+obj-$(CONFIG_PPC_DCR_NATIVE)   += dcr-low.o
 obj-$(CONFIG_U3_DART)          += dart_iommu.o
 obj-$(CONFIG_MMIO_NVRAM)       += mmio_nvram.o
 obj-$(CONFIG_FSL_SOC)          += fsl_soc.o
index fd4a5f5..d7a1bc1 100644 (file)
@@ -20,8 +20,7 @@
 #ifndef _ASM_POWERPC_DCR_NATIVE_H
 #define _ASM_POWERPC_DCR_NATIVE_H
 #ifdef __KERNEL__
-
-#include <asm/reg.h>
+#ifndef __ASSEMBLY__
 
 typedef struct {} dcr_host_t;
 
@@ -32,7 +31,41 @@ typedef struct {} dcr_host_t;
 #define dcr_read(host, dcr_n)          mfdcr(dcr_n)
 #define dcr_write(host, dcr_n, value)  mtdcr(dcr_n, value)
 
+/* Device Control Registers */
+void __mtdcr(int reg, unsigned int val);
+unsigned int __mfdcr(int reg);
+#define mfdcr(rn)                                              \
+       ({unsigned int rval;                                    \
+       if (__builtin_constant_p(rn))                           \
+               asm volatile("mfdcr %0," __stringify(rn)        \
+                             : "=r" (rval));                   \
+       else                                                    \
+               rval = __mfdcr(rn);                             \
+       rval;})
+
+#define mtdcr(rn, v)                                           \
+do {                                                           \
+       if (__builtin_constant_p(rn))                           \
+               asm volatile("mtdcr " __stringify(rn) ",%0"     \
+                             : : "r" (v));                     \
+       else                                                    \
+               __mtdcr(rn, v);                                 \
+} while (0)
+
+/* R/W of indirect DCRs make use of standard naming conventions for DCRs */
+#define mfdcri(base, reg)                      \
+({                                             \
+       mtdcr(base ## _CFGADDR, base ## _ ## reg);      \
+       mfdcr(base ## _CFGDATA);                        \
+})
+
+#define mtdcri(base, reg, data)                        \
+do {                                           \
+       mtdcr(base ## _CFGADDR, base ## _ ## reg);      \
+       mtdcr(base ## _CFGDATA, data);          \
+} while (0)
 
+#endif /* __ASSEMBLY__ */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_DCR_NATIVE_H */
 
index 473f2c7..b66c5e6 100644 (file)
@@ -20,6 +20,7 @@
 #ifndef _ASM_POWERPC_DCR_H
 #define _ASM_POWERPC_DCR_H
 #ifdef __KERNEL__
+#ifdef CONFIG_PPC_DCR
 
 #ifdef CONFIG_PPC_DCR_NATIVE
 #include <asm/dcr-native.h>
@@ -38,5 +39,6 @@ extern unsigned int dcr_resource_len(struct device_node *np,
                                     unsigned int index);
 #endif /* CONFIG_PPC_MERGE */
 
+#endif /* CONFIG_PPC_DCR */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_DCR_H */
index 602fbad..a263fc1 100644 (file)
@@ -9,41 +9,9 @@
 #ifndef __ASM_PPC_REG_BOOKE_H__
 #define __ASM_PPC_REG_BOOKE_H__
 
-#ifndef __ASSEMBLY__
-/* Device Control Registers */
-void __mtdcr(int reg, unsigned int val);
-unsigned int __mfdcr(int reg);
-#define mfdcr(rn)                                              \
-       ({unsigned int rval;                                    \
-       if (__builtin_constant_p(rn))                           \
-               asm volatile("mfdcr %0," __stringify(rn)        \
-                             : "=r" (rval));                   \
-       else                                                    \
-               rval = __mfdcr(rn);                             \
-       rval;})
-
-#define mtdcr(rn, v)                                           \
-do {                                                           \
-       if (__builtin_constant_p(rn))                           \
-               asm volatile("mtdcr " __stringify(rn) ",%0"     \
-                             : : "r" (v));                     \
-       else                                                    \
-               __mtdcr(rn, v);                                 \
-} while (0)
-
-/* R/W of indirect DCRs make use of standard naming conventions for DCRs */
-#define mfdcri(base, reg)                      \
-({                                             \
-       mtdcr(base ## _CFGADDR, base ## _ ## reg);      \
-       mfdcr(base ## _CFGDATA);                        \
-})
-
-#define mtdcri(base, reg, data)                        \
-do {                                           \
-       mtdcr(base ## _CFGADDR, base ## _ ## reg);      \
-       mtdcr(base ## _CFGDATA, data);          \
-} while (0)
+#include <asm/dcr.h>
 
+#ifndef __ASSEMBLY__
 /* Performance Monitor Registers */
 #define mfpmr(rn)      ({unsigned int rval; \
                        asm volatile("mfpmr %0," __stringify(rn) \