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Diffstat (limited to 'include/asm-cris/arch-v32/hwregs/supp_reg.h')
-rw-r--r--include/asm-cris/arch-v32/hwregs/supp_reg.h78
1 files changed, 78 insertions, 0 deletions
diff --git a/include/asm-cris/arch-v32/hwregs/supp_reg.h b/include/asm-cris/arch-v32/hwregs/supp_reg.h
new file mode 100644
index 00000000000..ffe49625ae3
--- /dev/null
+++ b/include/asm-cris/arch-v32/hwregs/supp_reg.h
@@ -0,0 +1,78 @@
+#ifndef __SUPP_REG_H__
+#define __SUPP_REG_H__
+
+/* Macros for reading and writing support/special registers. */
+
+#ifndef STRINGIFYFY
+#define STRINGIFYFY(i) #i
+#endif
+
+#ifndef STRINGIFY
+#define STRINGIFY(i) STRINGIFYFY(i)
+#endif
+
+#define SPEC_REG_BZ "BZ"
+#define SPEC_REG_VR "VR"
+#define SPEC_REG_PID "PID"
+#define SPEC_REG_SRS "SRS"
+#define SPEC_REG_WZ "WZ"
+#define SPEC_REG_EXS "EXS"
+#define SPEC_REG_EDA "EDA"
+#define SPEC_REG_MOF "MOF"
+#define SPEC_REG_DZ "DZ"
+#define SPEC_REG_EBP "EBP"
+#define SPEC_REG_ERP "ERP"
+#define SPEC_REG_SRP "SRP"
+#define SPEC_REG_NRP "NRP"
+#define SPEC_REG_CCS "CCS"
+#define SPEC_REG_USP "USP"
+#define SPEC_REG_SPC "SPC"
+
+#define RW_MM_CFG 0
+#define RW_MM_KBASE_LO 1
+#define RW_MM_KBASE_HI 2
+#define RW_MM_CAUSE 3
+#define RW_MM_TLB_SEL 4
+#define RW_MM_TLB_LO 5
+#define RW_MM_TLB_HI 6
+#define RW_MM_TLB_PGD 7
+
+#define BANK_GC 0
+#define BANK_IM 1
+#define BANK_DM 2
+#define BANK_BP 3
+
+#define RW_GC_CFG 0
+#define RW_GC_CCS 1
+#define RW_GC_SRS 2
+#define RW_GC_NRP 3
+#define RW_GC_EXS 4
+#define RW_GC_R0 8
+#define RW_GC_R1 9
+
+#define SPEC_REG_WR(r,v) \
+__asm__ __volatile__ ("move %0, $" r : : "r" (v));
+
+#define SPEC_REG_RD(r,v) \
+__asm__ __volatile__ ("move $" r ",%0" : "=r" (v));
+
+#define NOP() \
+ __asm__ __volatile__ ("nop");
+
+#define SUPP_BANK_SEL(b) \
+ SPEC_REG_WR(SPEC_REG_SRS,b); \
+ NOP(); \
+ NOP(); \
+ NOP();
+
+#define SUPP_REG_WR(r,v) \
+__asm__ __volatile__ ("move %0, $S" STRINGIFYFY(r) "\n\t" \
+ "nop\n\t" \
+ "nop\n\t" \
+ "nop\n\t" \
+ : : "r" (v));
+
+#define SUPP_REG_RD(r,v) \
+__asm__ __volatile__ ("move $S" STRINGIFYFY(r) ",%0" : "=r" (v));
+
+#endif /* __SUPP_REG_H__ */