#define ST0_DE 0x00010000
#define ST0_CE 0x00020000
+/*
+ * Setting c0_status.co enables Hit_Writeback and Hit_Writeback_Invalidate
+ * cacheops in userspace. This bit exists only on RM7000 and RM9000
+ * processors.
+ */
+#define ST0_CO 0x08000000
+
/*
* Bitfields in the R[23]000 cp0 status register.
*/
#ifndef __ASSEMBLY__
/*
- * Functions to access the r10k performance counter and control registers
+ * Functions to access the R10000 performance counters. These are basically
+ * mfc0 and mtc0 instructions from and to coprocessor register with a 5-bit
+ * performance counter number encoded into bits 1 ... 5 of the instruction.
+ * Only performance counters 0 to 1 actually exist, so for a non-R10000 aware
+ * disassembler these will look like an access to sel 0 or 1.
*/
-#define read_r10k_perf_cntr(counter) \
-({ unsigned int __res; \
- __asm__ __volatile__( \
- "mfpc\t%0, "STR(counter) \
- : "=r" (__res)); \
- __res;})
+#define read_r10k_perf_cntr(counter) \
+({ \
+ unsigned int __res; \
+ __asm__ __volatile__( \
+ "mfpc\t%0, %1" \
+ : "=r" (__res) \
+ : "i" (counter)); \
+ \
+ __res; \
+})
#define write_r10k_perf_cntr(counter,val) \
- __asm__ __volatile__( \
- "mtpc\t%0, "STR(counter) \
- : : "r" (val));
-
-#define read_r10k_perf_cntl(counter) \
-({ unsigned int __res; \
- __asm__ __volatile__( \
- "mfps\t%0, "STR(counter) \
- : "=r" (__res)); \
- __res;})
+do { \
+ __asm__ __volatile__( \
+ "mtpc\t%0, %1" \
+ : \
+ : "r" (val), "i" (counter)); \
+} while (0)
+
+#define read_r10k_perf_event(counter) \
+({ \
+ unsigned int __res; \
+ __asm__ __volatile__( \
+ "mfps\t%0, %1" \
+ : "=r" (__res) \
+ : "i" (counter)); \
+ \
+ __res; \
+})
#define write_r10k_perf_cntl(counter,val) \
- __asm__ __volatile__( \
- "mtps\t%0, "STR(counter) \
- : : "r" (val));
+do { \
+ __asm__ __volatile__( \
+ "mtps\t%0, %1" \
+ : \
+ : "r" (val), "i" (counter)); \
+} while (0)
+
/*
* Macros to access the system control coprocessor
})
#define __read_64bit_c0_register(source, sel) \
-({ unsigned long __res; \
- if (sel == 0) \
+({ unsigned long long __res; \
+ if (sizeof(unsigned long) == 4) \
+ __res = __read_64bit_c0_split(source, sel); \
+ else if (sel == 0) \
__asm__ __volatile__( \
".set\tmips3\n\t" \
"dmfc0\t%0, " #source "\n\t" \
#define __write_64bit_c0_register(register, sel, value) \
do { \
- if (sel == 0) \
+ if (sizeof(unsigned long) == 4) \
+ __write_64bit_c0_split(register, sel, value); \
+ else if (sel == 0) \
__asm__ __volatile__( \
".set\tmips3\n\t" \
"dmtc0\t%z0, " #register "\n\t" \
#define __read_ulong_c0_register(reg, sel) \
((sizeof(unsigned long) == 4) ? \
- __read_32bit_c0_register(reg, sel) : \
- __read_64bit_c0_register(reg, sel))
+ (unsigned long) __read_32bit_c0_register(reg, sel) : \
+ (unsigned long) __read_64bit_c0_register(reg, sel))
#define __write_ulong_c0_register(reg, sel, val) \
do { \
#define read_c0_framemask() __read_32bit_c0_register($21, 0)
#define write_c0_framemask(val) __write_32bit_c0_register($21, 0, val)
+/* RM9000 PerfControl performance counter control register */
+#define read_c0_perfcontrol() __read_32bit_c0_register($22, 0)
+#define write_c0_perfcontrol(val) __write_32bit_c0_register($22, 0, val)
+
#define read_c0_diag() __read_32bit_c0_register($22, 0)
#define write_c0_diag(val) __write_32bit_c0_register($22, 0, val)
#define read_c0_depc() __read_ulong_c0_register($24, 0)
#define write_c0_depc(val) __write_ulong_c0_register($24, 0, val)
+/*
+ * MIPS32 / MIPS64 performance counters
+ */
+#define read_c0_perfctrl0() __read_32bit_c0_register($25, 0)
+#define write_c0_perfctrl0(val) __write_32bit_c0_register($25, 0, val)
+#define read_c0_perfcntr0() __read_32bit_c0_register($25, 1)
+#define write_c0_perfcntr0(val) __write_32bit_c0_register($25, 1, val)
+#define read_c0_perfctrl1() __read_32bit_c0_register($25, 2)
+#define write_c0_perfctrl1(val) __write_32bit_c0_register($25, 2, val)
+#define read_c0_perfcntr1() __read_32bit_c0_register($25, 3)
+#define write_c0_perfcntr1(val) __write_32bit_c0_register($25, 3, val)
+#define read_c0_perfctrl2() __read_32bit_c0_register($25, 4)
+#define write_c0_perfctrl2(val) __write_32bit_c0_register($25, 4, val)
+#define read_c0_perfcntr2() __read_32bit_c0_register($25, 5)
+#define write_c0_perfcntr2(val) __write_32bit_c0_register($25, 5, val)
+#define read_c0_perfctrl3() __read_32bit_c0_register($25, 6)
+#define write_c0_perfctrl3(val) __write_32bit_c0_register($25, 6, val)
+#define read_c0_perfcntr3() __read_32bit_c0_register($25, 7)
+#define write_c0_perfcntr3(val) __write_32bit_c0_register($25, 7, val)
+
+/* RM9000 PerfCount performance counter register */
+#define read_c0_perfcount() __read_64bit_c0_register($25, 0)
+#define write_c0_perfcount(val) __write_64bit_c0_register($25, 0, val)
+
#define read_c0_ecc() __read_32bit_c0_register($26, 0)
#define write_c0_ecc(val) __write_32bit_c0_register($26, 0, val)
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