@@ -138,7 +138,7 @@ reset:
and t0, t0, (1 << 31)
#else
1: mfc0 t0, CP0_EBASE
- and t0, t0, EBASE_CPUNUM
+ and t0, t0, MIPS_EBASE_CPUNUM
#endif
/* Hang if this isn't the first CPU in the system */
new file mode 100644
@@ -0,0 +1,69 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2004, 2007 Maciej W. Rozycki
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef _ASM_COMPILER_H
+#define _ASM_COMPILER_H
+
+/*
+ * With GCC 4.5 onwards we can use __builtin_unreachable to indicate to the
+ * compiler that a particular code path will never be hit. This allows it to be
+ * optimised out of the generated binary.
+ *
+ * Unfortunately at least GCC 4.6.3 through 7.3.0 inclusive suffer from a bug
+ * that can lead to instructions from beyond an unreachable statement being
+ * incorrectly reordered into earlier delay slots if the unreachable statement
+ * is the only content of a case in a switch statement. This can lead to
+ * seemingly random behaviour, such as invalid memory accesses from incorrectly
+ * reordered loads or stores. See this potential GCC fix for details:
+ *
+ * https://gcc.gnu.org/ml/gcc-patches/2015-09/msg00360.html
+ *
+ * It is unclear whether GCC 8 onwards suffer from the same issue - nothing
+ * relevant is mentioned in GCC 8 release notes and nothing obviously relevant
+ * stands out in GCC commit logs, but these newer GCC versions generate very
+ * different code for the testcase which doesn't exhibit the bug.
+ *
+ * GCC also handles stack allocation suboptimally when calling noreturn
+ * functions or calling __builtin_unreachable():
+ *
+ * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82365
+ *
+ * We work around both of these issues by placing a volatile asm statement,
+ * which GCC is prevented from reordering past, prior to __builtin_unreachable
+ * calls.
+ *
+ * The .insn statement is required to ensure that any branches to the
+ * statement, which sadly must be kept due to the asm statement, are known to
+ * be branches to code and satisfy linker requirements for microMIPS kernels.
+ */
+#undef barrier_before_unreachable
+#define barrier_before_unreachable() asm volatile(".insn")
+
+#if !defined(CONFIG_CC_IS_GCC) || \
+ (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)
+# define GCC_OFF_SMALL_ASM() "ZC"
+#elif defined(CONFIG_CPU_MICROMIPS)
+# error "microMIPS compilation unsupported with GCC older than 4.9"
+#else
+# define GCC_OFF_SMALL_ASM() "R"
+#endif
+
+#ifdef CONFIG_CPU_MIPSR6
+#define MIPS_ISA_LEVEL "mips64r6"
+#define MIPS_ISA_ARCH_LEVEL MIPS_ISA_LEVEL
+#define MIPS_ISA_LEVEL_RAW mips64r6
+#define MIPS_ISA_ARCH_LEVEL_RAW MIPS_ISA_LEVEL_RAW
+#else
+/* MIPS64 is a superset of MIPS32 */
+#define MIPS_ISA_LEVEL "mips64r2"
+#define MIPS_ISA_ARCH_LEVEL "arch=r4000"
+#define MIPS_ISA_LEVEL_RAW mips64r2
+#define MIPS_ISA_ARCH_LEVEL_RAW MIPS_ISA_LEVEL_RAW
+#endif /* CONFIG_CPU_MIPSR6 */
+
+#endif /* _ASM_COMPILER_H */
new file mode 100644
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 MIPS Tech, LLC
+ * Author: Matt Redfearn <matt.redfearn at mips.com>
+ */
+
+#ifndef __MIPS_ASM_ISA_REV_H__
+#define __MIPS_ASM_ISA_REV_H__
+
+/*
+ * The ISA revision level. This is 0 for MIPS I to V and N for
+ * MIPS{32,64}rN.
+ */
+
+/* If the compiler has defined __mips_isa_rev, believe it. */
+#ifdef __mips_isa_rev
+#define MIPS_ISA_REV __mips_isa_rev
+#else
+/* The compiler hasn't defined the isa rev so assume it's MIPS I - V (0) */
+#define MIPS_ISA_REV 0
+#endif
+
+
+#endif /* __MIPS_ASM_ISA_REV_H__ */
@@ -10,6 +10,8 @@
#ifndef _ASM_MIPSREGS_H
#define _ASM_MIPSREGS_H
+#include <asm/compiler.h>
+#include <asm/isa-rev.h>
/*
* The following macros are especially useful for __asm__
* inline assembler.
@@ -26,9 +28,10 @@
*/
#ifdef __ASSEMBLY__
#define _ULCAST_
+#define _U64CAST_
#else
-#include <linux/bitops.h>
#define _ULCAST_ (unsigned long)
+#define _U64CAST_ (u64)
#endif
/*
@@ -42,15 +45,25 @@
#define CP0_GLOBALNUMBER $3, 1
#define CP0_CONTEXT $4
#define CP0_PAGEMASK $5
+#define CP0_PAGEGRAIN $5, 1
+#define CP0_SEGCTL0 $5, 2
+#define CP0_SEGCTL1 $5, 3
+#define CP0_SEGCTL2 $5, 4
#define CP0_WIRED $6
#define CP0_INFO $7
-#define CP0_HWRENA $7, 0
+#define CP0_HWRENA $7
#define CP0_BADVADDR $8
#define CP0_BADINSTR $8, 1
#define CP0_COUNT $9
#define CP0_ENTRYHI $10
+#define CP0_GUESTCTL1 $10, 4
+#define CP0_GUESTCTL2 $10, 5
+#define CP0_GUESTCTL3 $10, 6
#define CP0_COMPARE $11
+#define CP0_GUESTCTL0EXT $11, 4
#define CP0_STATUS $12
+#define CP0_GUESTCTL0 $12, 6
+#define CP0_GTOFFSET $12, 7
#define CP0_CAUSE $13
#define CP0_EPC $14
#define CP0_PRID $15
@@ -59,6 +72,7 @@
#define CP0_CONFIG $16
#define CP0_CONFIG3 $16, 3
#define CP0_CONFIG5 $16, 5
+#define CP0_CONFIG6 $16, 6
#define CP0_LLADDR $17
#define CP0_WATCHLO $18
#define CP0_WATCHHI $19
@@ -130,6 +144,16 @@
#define MIPS_ENTRYLO_XI (_ULCAST_(1) << (BITS_PER_LONG - 2))
#define MIPS_ENTRYLO_RI (_ULCAST_(1) << (BITS_PER_LONG - 1))
+/*
+ * MIPSr6+ GlobalNumber register definitions
+ */
+#define MIPS_GLOBALNUMBER_VP_SHF 0
+#define MIPS_GLOBALNUMBER_VP (_ULCAST_(0xff) << MIPS_GLOBALNUMBER_VP_SHF)
+#define MIPS_GLOBALNUMBER_CORE_SHF 8
+#define MIPS_GLOBALNUMBER_CORE (_ULCAST_(0xff) << MIPS_GLOBALNUMBER_CORE_SHF)
+#define MIPS_GLOBALNUMBER_CLUSTER_SHF 16
+#define MIPS_GLOBALNUMBER_CLUSTER (_ULCAST_(0xf) << MIPS_GLOBALNUMBER_CLUSTER_SHF)
+
/*
* Values for PageMask register
*/
@@ -189,6 +213,8 @@
/* MIPS32/64 EntryHI bit definitions */
#define MIPS_ENTRYHI_EHINV (_ULCAST_(1) << 10)
+#define MIPS_ENTRYHI_ASIDX (_ULCAST_(0x3) << 8)
+#define MIPS_ENTRYHI_ASID (_ULCAST_(0xff) << 0)
/*
* R4x00 interrupt enable / cause bits
@@ -351,10 +377,14 @@
#define CAUSEF_IP7 (_ULCAST_(1) << 15)
#define CAUSEB_FDCI 21
#define CAUSEF_FDCI (_ULCAST_(1) << 21)
+#define CAUSEB_WP 22
+#define CAUSEF_WP (_ULCAST_(1) << 22)
#define CAUSEB_IV 23
#define CAUSEF_IV (_ULCAST_(1) << 23)
#define CAUSEB_PCI 26
#define CAUSEF_PCI (_ULCAST_(1) << 26)
+#define CAUSEB_DC 27
+#define CAUSEF_DC (_ULCAST_(1) << 27)
#define CAUSEB_CE 28
#define CAUSEF_CE (_ULCAST_(3) << 28)
#define CAUSEB_TI 30
@@ -363,10 +393,36 @@
#define CAUSEF_BD (_ULCAST_(1) << 31)
/*
- * Bits in the coprocessor 0 EBase register.
+ * Cause.ExcCode trap codes.
*/
-#define EBASE_CPUNUM 0x3ff
-#define EBASE_WG (_ULCAST_(1) << 11)
+#define EXCCODE_INT 0 /* Interrupt pending */
+#define EXCCODE_MOD 1 /* TLB modified fault */
+#define EXCCODE_TLBL 2 /* TLB miss on load or ifetch */
+#define EXCCODE_TLBS 3 /* TLB miss on a store */
+#define EXCCODE_ADEL 4 /* Address error on a load or ifetch */
+#define EXCCODE_ADES 5 /* Address error on a store */
+#define EXCCODE_IBE 6 /* Bus error on an ifetch */
+#define EXCCODE_DBE 7 /* Bus error on a load or store */
+#define EXCCODE_SYS 8 /* System call */
+#define EXCCODE_BP 9 /* Breakpoint */
+#define EXCCODE_RI 10 /* Reserved instruction exception */
+#define EXCCODE_CPU 11 /* Coprocessor unusable */
+#define EXCCODE_OV 12 /* Arithmetic overflow */
+#define EXCCODE_TR 13 /* Trap instruction */
+#define EXCCODE_MSAFPE 14 /* MSA floating point exception */
+#define EXCCODE_FPE 15 /* Floating point exception */
+#define EXCCODE_TLBRI 19 /* TLB Read-Inhibit exception */
+#define EXCCODE_TLBXI 20 /* TLB Execution-Inhibit exception */
+#define EXCCODE_MSADIS 21 /* MSA disabled exception */
+#define EXCCODE_MDMX 22 /* MDMX unusable exception */
+#define EXCCODE_WATCH 23 /* Watch address reference */
+#define EXCCODE_MCHECK 24 /* Machine check */
+#define EXCCODE_THREAD 25 /* Thread exceptions (MT) */
+#define EXCCODE_DSPDIS 26 /* DSP disabled exception */
+#define EXCCODE_GE 27 /* Virtualized guest exception (VZ) */
+
+/* Implementation specific trap codes used by MIPS cores */
+#define MIPS_EXCCODE_TLBPAR 16 /* TLB parity error exception */
/*
* Bits in the coprocessor 0 config register.
@@ -394,7 +450,7 @@
#define CONF_SM (_ULCAST_(1) << 16)
#define CONF_SC (_ULCAST_(1) << 17)
#define CONF_EW (_ULCAST_(3) << 18)
-#define CONF_EP (_ULCAST_(15) << 24)
+#define CONF_EP (_ULCAST_(15)<< 24)
#define CONF_EC (_ULCAST_(7) << 28)
#define CONF_CM (_ULCAST_(1) << 31)
@@ -420,7 +476,7 @@
#define R10K_CONF_CT (_ULCAST_(1) << 5)
#define R10K_CONF_PE (_ULCAST_(1) << 6)
#define R10K_CONF_PM (_ULCAST_(3) << 7)
-#define R10K_CONF_EC (_ULCAST_(15) << 9)
+#define R10K_CONF_EC (_ULCAST_(15)<< 9)
#define R10K_CONF_SB (_ULCAST_(1) << 13)
#define R10K_CONF_SK (_ULCAST_(1) << 14)
#define R10K_CONF_SS (_ULCAST_(7) << 16)
@@ -453,6 +509,7 @@
#define TX49_CONF_CWFON (_ULCAST_(1) << 27)
/* Bits specific to the MIPS32/64 PRA. */
+#define MIPS_CONF_VI (_ULCAST_(1) << 3)
#define MIPS_CONF_MT (_ULCAST_(7) << 7)
#define MIPS_CONF_MT_TLB (_ULCAST_(1) << 7)
#define MIPS_CONF_MT_FTLB (_ULCAST_(4) << 7)
@@ -549,7 +606,8 @@
#define MIPS_CONF4_MMUEXTDEF_MMUSIZEEXT (_ULCAST_(1) << 14)
#define MIPS_CONF4_MMUEXTDEF_FTLBSIZEEXT (_ULCAST_(2) << 14)
#define MIPS_CONF4_MMUEXTDEF_VTLBSIZEEXT (_ULCAST_(3) << 14)
-#define MIPS_CONF4_KSCREXIST (_ULCAST_(255) << 16)
+#define MIPS_CONF4_KSCREXIST_SHIFT (16)
+#define MIPS_CONF4_KSCREXIST (_ULCAST_(255) << MIPS_CONF4_KSCREXIST_SHIFT)
#define MIPS_CONF4_VTLBSIZEEXT_SHIFT (24)
#define MIPS_CONF4_VTLBSIZEEXT (_ULCAST_(15) << MIPS_CONF4_VTLBSIZEEXT_SHIFT)
#define MIPS_CONF4_AE (_ULCAST_(1) << 28)
@@ -562,9 +620,13 @@
#define MIPS_CONF5_LLB (_ULCAST_(1) << 4)
#define MIPS_CONF5_MVH (_ULCAST_(1) << 5)
#define MIPS_CONF5_VP (_ULCAST_(1) << 7)
+#define MIPS_CONF5_SBRI (_ULCAST_(1) << 6)
#define MIPS_CONF5_FRE (_ULCAST_(1) << 8)
#define MIPS_CONF5_UFE (_ULCAST_(1) << 9)
#define MIPS_CONF5_L2C (_ULCAST_(1) << 10)
+#define MIPS_CONF5_CA2 (_ULCAST_(1) << 14)
+#define MIPS_CONF5_MI (_ULCAST_(1) << 17)
+#define MIPS_CONF5_CRCP (_ULCAST_(1) << 18)
#define MIPS_CONF5_MSAEN (_ULCAST_(1) << 27)
#define MIPS_CONF5_EVA (_ULCAST_(1) << 28)
#define MIPS_CONF5_CV (_ULCAST_(1) << 29)
@@ -573,6 +635,8 @@
#define MIPS_CONF6_SYND (_ULCAST_(1) << 13)
/* proAptiv FTLB on/off bit */
#define MIPS_CONF6_FTLBEN (_ULCAST_(1) << 15)
+/* Loongson-3 FTLB on/off bit */
+#define MIPS_CONF6_FTLBDIS (_ULCAST_(1) << 22)
/* FTLB probability bits */
#define MIPS_CONF6_FTLBP_SHIFT (16)
@@ -582,19 +646,95 @@
#define MIPS_CONF7_IAR (_ULCAST_(1) << 10)
#define MIPS_CONF7_AR (_ULCAST_(1) << 16)
-/* FTLB probability bits for R6 */
-#define MIPS_CONF7_FTLBP_SHIFT (18)
+
+/* Ingenic HPTLB off bits */
+#define XBURST_PAGECTRL_HPTLB_DIS 0xa9000000
+
+/* Ingenic Config7 bits */
+#define MIPS_CONF7_BTB_LOOP_EN (_ULCAST_(1) << 4)
+
+/* Config7 Bits specific to MIPS Technologies. */
+
+/* Performance counters implemented Per TC */
+#define MTI_CONF7_PTC (_ULCAST_(1) << 19)
+
+/* WatchLo* register definitions */
+#define MIPS_WATCHLO_IRW (_ULCAST_(0x7) << 0)
+
+/* WatchHi* register definitions */
+#define MIPS_WATCHHI_M (_ULCAST_(1) << 31)
+#define MIPS_WATCHHI_G (_ULCAST_(1) << 30)
+#define MIPS_WATCHHI_WM (_ULCAST_(0x3) << 28)
+#define MIPS_WATCHHI_WM_R_RVA (_ULCAST_(0) << 28)
+#define MIPS_WATCHHI_WM_R_GPA (_ULCAST_(1) << 28)
+#define MIPS_WATCHHI_WM_G_GVA (_ULCAST_(2) << 28)
+#define MIPS_WATCHHI_EAS (_ULCAST_(0x3) << 24)
+#define MIPS_WATCHHI_ASID (_ULCAST_(0xff) << 16)
+#define MIPS_WATCHHI_MASK (_ULCAST_(0x1ff) << 3)
+#define MIPS_WATCHHI_I (_ULCAST_(1) << 2)
+#define MIPS_WATCHHI_R (_ULCAST_(1) << 1)
+#define MIPS_WATCHHI_W (_ULCAST_(1) << 0)
+#define MIPS_WATCHHI_IRW (_ULCAST_(0x7) << 0)
+
+/* PerfCnt control register definitions */
+#define MIPS_PERFCTRL_EXL (_ULCAST_(1) << 0)
+#define MIPS_PERFCTRL_K (_ULCAST_(1) << 1)
+#define MIPS_PERFCTRL_S (_ULCAST_(1) << 2)
+#define MIPS_PERFCTRL_U (_ULCAST_(1) << 3)
+#define MIPS_PERFCTRL_IE (_ULCAST_(1) << 4)
+#define MIPS_PERFCTRL_EVENT_S 5
+#define MIPS_PERFCTRL_EVENT (_ULCAST_(0x3ff) << MIPS_PERFCTRL_EVENT_S)
+#define MIPS_PERFCTRL_PCTD (_ULCAST_(1) << 15)
+#define MIPS_PERFCTRL_EC (_ULCAST_(0x3) << 23)
+#define MIPS_PERFCTRL_EC_R (_ULCAST_(0) << 23)
+#define MIPS_PERFCTRL_EC_RI (_ULCAST_(1) << 23)
+#define MIPS_PERFCTRL_EC_G (_ULCAST_(2) << 23)
+#define MIPS_PERFCTRL_EC_GRI (_ULCAST_(3) << 23)
+#define MIPS_PERFCTRL_W (_ULCAST_(1) << 30)
+#define MIPS_PERFCTRL_M (_ULCAST_(1) << 31)
+
+/* PerfCnt control register MT extensions used by MIPS cores */
+#define MIPS_PERFCTRL_VPEID_S 16
+#define MIPS_PERFCTRL_VPEID (_ULCAST_(0xf) << MIPS_PERFCTRL_VPEID_S)
+#define MIPS_PERFCTRL_TCID_S 22
+#define MIPS_PERFCTRL_TCID (_ULCAST_(0xff) << MIPS_PERFCTRL_TCID_S)
+#define MIPS_PERFCTRL_MT_EN (_ULCAST_(0x3) << 20)
+#define MIPS_PERFCTRL_MT_EN_ALL (_ULCAST_(0) << 20)
+#define MIPS_PERFCTRL_MT_EN_VPE (_ULCAST_(1) << 20)
+#define MIPS_PERFCTRL_MT_EN_TC (_ULCAST_(2) << 20)
+
+/* PerfCnt control register MT extensions used by BMIPS5000 */
+#define BRCM_PERFCTRL_TC (_ULCAST_(1) << 30)
+
+/* PerfCnt control register MT extensions used by Netlogic XLR */
+#define XLR_PERFCTRL_ALLTHREADS (_ULCAST_(1) << 13)
/* MAAR bit definitions */
+#define MIPS_MAAR_VH (_U64CAST_(1) << 63)
#define MIPS_MAAR_ADDR ((BIT_ULL(BITS_PER_LONG - 12) - 1) << 12)
#define MIPS_MAAR_ADDR_SHIFT 12
#define MIPS_MAAR_S (_ULCAST_(1) << 1)
-#define MIPS_MAAR_V (_ULCAST_(1) << 0)
+#define MIPS_MAAR_VL (_ULCAST_(1) << 0)
+
+/* MAARI bit definitions */
+#define MIPS_MAARI_INDEX (_ULCAST_(0x3f) << 0)
+
+/* EBase bit definitions */
+#define MIPS_EBASE_CPUNUM_SHIFT 0
+#define MIPS_EBASE_CPUNUM (_ULCAST_(0x3ff) << 0)
+#define MIPS_EBASE_WG_SHIFT 11
+#define MIPS_EBASE_WG (_ULCAST_(1) << 11)
+#define MIPS_EBASE_BASE_SHIFT 12
+#define MIPS_EBASE_BASE (~_ULCAST_((1 << MIPS_EBASE_BASE_SHIFT) - 1))
/* CMGCRBase bit definitions */
#define MIPS_CMGCRB_BASE 11
#define MIPS_CMGCRF_BASE (~_ULCAST_((1 << MIPS_CMGCRB_BASE) - 1))
+/* LLAddr bit definitions */
+#define MIPS_LLADDR_LLB_SHIFT 0
+#define MIPS_LLADDR_LLB (_ULCAST_(1) << MIPS_LLADDR_LLB_SHIFT)
+
/*
* Bits in the MIPS32 Memory Segmentation registers.
*/
@@ -626,6 +766,8 @@
#define MIPS_PWFIELD_PTEI_SHIFT 0
#define MIPS_PWFIELD_PTEI_MASK 0x0000003f
+#define MIPS_PWSIZE_PS_SHIFT 30
+#define MIPS_PWSIZE_PS_MASK 0x40000000
#define MIPS_PWSIZE_GDW_SHIFT 24
#define MIPS_PWSIZE_GDW_MASK 0x3f000000
#define MIPS_PWSIZE_UDW_SHIFT 18
@@ -639,6 +781,12 @@
#define MIPS_PWCTL_PWEN_SHIFT 31
#define MIPS_PWCTL_PWEN_MASK 0x80000000
+#define MIPS_PWCTL_XK_SHIFT 28
+#define MIPS_PWCTL_XK_MASK 0x10000000
+#define MIPS_PWCTL_XS_SHIFT 27
+#define MIPS_PWCTL_XS_MASK 0x08000000
+#define MIPS_PWCTL_XU_SHIFT 26
+#define MIPS_PWCTL_XU_MASK 0x04000000
#define MIPS_PWCTL_DPH_SHIFT 7
#define MIPS_PWCTL_DPH_MASK 0x00000080
#define MIPS_PWCTL_HUGEPG_SHIFT 6
@@ -646,6 +794,94 @@
#define MIPS_PWCTL_PSN_SHIFT 0
#define MIPS_PWCTL_PSN_MASK 0x0000003f
+/* GuestCtl0 fields */
+#define MIPS_GCTL0_GM_SHIFT 31
+#define MIPS_GCTL0_GM (_ULCAST_(1) << MIPS_GCTL0_GM_SHIFT)
+#define MIPS_GCTL0_RI_SHIFT 30
+#define MIPS_GCTL0_RI (_ULCAST_(1) << MIPS_GCTL0_RI_SHIFT)
+#define MIPS_GCTL0_MC_SHIFT 29
+#define MIPS_GCTL0_MC (_ULCAST_(1) << MIPS_GCTL0_MC_SHIFT)
+#define MIPS_GCTL0_CP0_SHIFT 28
+#define MIPS_GCTL0_CP0 (_ULCAST_(1) << MIPS_GCTL0_CP0_SHIFT)
+#define MIPS_GCTL0_AT_SHIFT 26
+#define MIPS_GCTL0_AT (_ULCAST_(0x3) << MIPS_GCTL0_AT_SHIFT)
+#define MIPS_GCTL0_GT_SHIFT 25
+#define MIPS_GCTL0_GT (_ULCAST_(1) << MIPS_GCTL0_GT_SHIFT)
+#define MIPS_GCTL0_CG_SHIFT 24
+#define MIPS_GCTL0_CG (_ULCAST_(1) << MIPS_GCTL0_CG_SHIFT)
+#define MIPS_GCTL0_CF_SHIFT 23
+#define MIPS_GCTL0_CF (_ULCAST_(1) << MIPS_GCTL0_CF_SHIFT)
+#define MIPS_GCTL0_G1_SHIFT 22
+#define MIPS_GCTL0_G1 (_ULCAST_(1) << MIPS_GCTL0_G1_SHIFT)
+#define MIPS_GCTL0_G0E_SHIFT 19
+#define MIPS_GCTL0_G0E (_ULCAST_(1) << MIPS_GCTL0_G0E_SHIFT)
+#define MIPS_GCTL0_PT_SHIFT 18
+#define MIPS_GCTL0_PT (_ULCAST_(1) << MIPS_GCTL0_PT_SHIFT)
+#define MIPS_GCTL0_RAD_SHIFT 9
+#define MIPS_GCTL0_RAD (_ULCAST_(1) << MIPS_GCTL0_RAD_SHIFT)
+#define MIPS_GCTL0_DRG_SHIFT 8
+#define MIPS_GCTL0_DRG (_ULCAST_(1) << MIPS_GCTL0_DRG_SHIFT)
+#define MIPS_GCTL0_G2_SHIFT 7
+#define MIPS_GCTL0_G2 (_ULCAST_(1) << MIPS_GCTL0_G2_SHIFT)
+#define MIPS_GCTL0_GEXC_SHIFT 2
+#define MIPS_GCTL0_GEXC (_ULCAST_(0x1f) << MIPS_GCTL0_GEXC_SHIFT)
+#define MIPS_GCTL0_SFC2_SHIFT 1
+#define MIPS_GCTL0_SFC2 (_ULCAST_(1) << MIPS_GCTL0_SFC2_SHIFT)
+#define MIPS_GCTL0_SFC1_SHIFT 0
+#define MIPS_GCTL0_SFC1 (_ULCAST_(1) << MIPS_GCTL0_SFC1_SHIFT)
+
+/* GuestCtl0.AT Guest address translation control */
+#define MIPS_GCTL0_AT_ROOT 1 /* Guest MMU under Root control */
+#define MIPS_GCTL0_AT_GUEST 3 /* Guest MMU under Guest control */
+
+/* GuestCtl0.GExcCode Hypervisor exception cause codes */
+#define MIPS_GCTL0_GEXC_GPSI 0 /* Guest Privileged Sensitive Instruction */
+#define MIPS_GCTL0_GEXC_GSFC 1 /* Guest Software Field Change */
+#define MIPS_GCTL0_GEXC_HC 2 /* Hypercall */
+#define MIPS_GCTL0_GEXC_GRR 3 /* Guest Reserved Instruction Redirect */
+#define MIPS_GCTL0_GEXC_GVA 8 /* Guest Virtual Address available */
+#define MIPS_GCTL0_GEXC_GHFC 9 /* Guest Hardware Field Change */
+#define MIPS_GCTL0_GEXC_GPA 10 /* Guest Physical Address available */
+
+/* GuestCtl0Ext fields */
+#define MIPS_GCTL0EXT_RPW_SHIFT 8
+#define MIPS_GCTL0EXT_RPW (_ULCAST_(0x3) << MIPS_GCTL0EXT_RPW_SHIFT)
+#define MIPS_GCTL0EXT_NCC_SHIFT 6
+#define MIPS_GCTL0EXT_NCC (_ULCAST_(0x3) << MIPS_GCTL0EXT_NCC_SHIFT)
+#define MIPS_GCTL0EXT_CGI_SHIFT 4
+#define MIPS_GCTL0EXT_CGI (_ULCAST_(1) << MIPS_GCTL0EXT_CGI_SHIFT)
+#define MIPS_GCTL0EXT_FCD_SHIFT 3
+#define MIPS_GCTL0EXT_FCD (_ULCAST_(1) << MIPS_GCTL0EXT_FCD_SHIFT)
+#define MIPS_GCTL0EXT_OG_SHIFT 2
+#define MIPS_GCTL0EXT_OG (_ULCAST_(1) << MIPS_GCTL0EXT_OG_SHIFT)
+#define MIPS_GCTL0EXT_BG_SHIFT 1
+#define MIPS_GCTL0EXT_BG (_ULCAST_(1) << MIPS_GCTL0EXT_BG_SHIFT)
+#define MIPS_GCTL0EXT_MG_SHIFT 0
+#define MIPS_GCTL0EXT_MG (_ULCAST_(1) << MIPS_GCTL0EXT_MG_SHIFT)
+
+/* GuestCtl0Ext.RPW Root page walk configuration */
+#define MIPS_GCTL0EXT_RPW_BOTH 0 /* Root PW for GPA->RPA and RVA->RPA */
+#define MIPS_GCTL0EXT_RPW_GPA 2 /* Root PW for GPA->RPA */
+#define MIPS_GCTL0EXT_RPW_RVA 3 /* Root PW for RVA->RPA */
+
+/* GuestCtl0Ext.NCC Nested cache coherency attributes */
+#define MIPS_GCTL0EXT_NCC_IND 0 /* Guest CCA independent of Root CCA */
+#define MIPS_GCTL0EXT_NCC_MOD 1 /* Guest CCA modified by Root CCA */
+
+/* GuestCtl1 fields */
+#define MIPS_GCTL1_ID_SHIFT 0
+#define MIPS_GCTL1_ID_WIDTH 8
+#define MIPS_GCTL1_ID (_ULCAST_(0xff) << MIPS_GCTL1_ID_SHIFT)
+#define MIPS_GCTL1_RID_SHIFT 16
+#define MIPS_GCTL1_RID_WIDTH 8
+#define MIPS_GCTL1_RID (_ULCAST_(0xff) << MIPS_GCTL1_RID_SHIFT)
+#define MIPS_GCTL1_EID_SHIFT 24
+#define MIPS_GCTL1_EID_WIDTH 8
+#define MIPS_GCTL1_EID (_ULCAST_(0xff) << MIPS_GCTL1_EID_SHIFT)
+
+/* GuestID reserved for root context */
+#define MIPS_GCTL1_ROOT_GUESTID 0
+
/* CDMMBase register bit definitions */
#define MIPS_CDMMBASE_SIZE_SHIFT 0
#define MIPS_CDMMBASE_SIZE (_ULCAST_(511) << MIPS_CDMMBASE_SIZE_SHIFT)
@@ -654,6 +890,24 @@
#define MIPS_CDMMBASE_ADDR_SHIFT 11
#define MIPS_CDMMBASE_ADDR_START 15
+/* RDHWR register numbers */
+#define MIPS_HWR_CPUNUM 0 /* CPU number */
+#define MIPS_HWR_SYNCISTEP 1 /* SYNCI step size */
+#define MIPS_HWR_CC 2 /* Cycle counter */
+#define MIPS_HWR_CCRES 3 /* Cycle counter resolution */
+#define MIPS_HWR_ULR 29 /* UserLocal */
+#define MIPS_HWR_IMPL1 30 /* Implementation dependent */
+#define MIPS_HWR_IMPL2 31 /* Implementation dependent */
+
+/* Bits in HWREna register */
+#define MIPS_HWRENA_CPUNUM (_ULCAST_(1) << MIPS_HWR_CPUNUM)
+#define MIPS_HWRENA_SYNCISTEP (_ULCAST_(1) << MIPS_HWR_SYNCISTEP)
+#define MIPS_HWRENA_CC (_ULCAST_(1) << MIPS_HWR_CC)
+#define MIPS_HWRENA_CCRES (_ULCAST_(1) << MIPS_HWR_CCRES)
+#define MIPS_HWRENA_ULR (_ULCAST_(1) << MIPS_HWR_ULR)
+#define MIPS_HWRENA_IMPL1 (_ULCAST_(1) << MIPS_HWR_IMPL1)
+#define MIPS_HWRENA_IMPL2 (_ULCAST_(1) << MIPS_HWR_IMPL2)
+
/*
* Bitfields in the TX39 family CP0 Configuration Register 3
*/
@@ -697,6 +951,31 @@
/* Disable Branch Return Cache */
#define R10K_DIAG_D_BRC (_ULCAST_(1) << 22)
+/* Flush ITLB */
+#define LOONGSON_DIAG_ITLB (_ULCAST_(1) << 2)
+/* Flush DTLB */
+#define LOONGSON_DIAG_DTLB (_ULCAST_(1) << 3)
+/* Flush VTLB */
+#define LOONGSON_DIAG_VTLB (_ULCAST_(1) << 12)
+/* Flush FTLB */
+#define LOONGSON_DIAG_FTLB (_ULCAST_(1) << 13)
+
+/* CvmCtl register field definitions */
+#define CVMCTL_IPPCI_SHIFT 7
+#define CVMCTL_IPPCI (_U64CAST_(0x7) << CVMCTL_IPPCI_SHIFT)
+#define CVMCTL_IPTI_SHIFT 4
+#define CVMCTL_IPTI (_U64CAST_(0x7) << CVMCTL_IPTI_SHIFT)
+
+/* CvmMemCtl2 register field definitions */
+#define CVMMEMCTL2_INHIBITTS (_U64CAST_(1) << 17)
+
+/* CvmVMConfig register field definitions */
+#define CVMVMCONF_DGHT (_U64CAST_(1) << 60)
+#define CVMVMCONF_MMUSIZEM1_S 12
+#define CVMVMCONF_MMUSIZEM1 (_U64CAST_(0xff) << CVMVMCONF_MMUSIZEM1_S)
+#define CVMVMCONF_RMMUSIZEM1_S 0
+#define CVMVMCONF_RMMUSIZEM1 (_U64CAST_(0xff) << CVMVMCONF_RMMUSIZEM1_S)
+
/*
* Coprocessor 1 (FPU) register names
*/
@@ -780,9 +1059,12 @@
/*
* Bits 22:20 of the FPU Status Register will be read as 0,
* and should be written as zero.
+ * MAC2008 was removed in Release 5 so we still treat it as
+ * reserved.
*/
#define FPU_CSR_RSVD (_ULCAST_(7) << 20)
+#define FPU_CSR_MAC2008 (_ULCAST_(1) << 20)
#define FPU_CSR_ABS2008 (_ULCAST_(1) << 19)
#define FPU_CSR_NAN2008 (_ULCAST_(1) << 18)
@@ -827,14 +1109,14 @@
* Macros for handling the ISA mode bit for MIPS16 and microMIPS.
*/
#if defined(CONFIG_SYS_SUPPORTS_MIPS16) || \
- defined(CONFIG_SYS_SUPPORTS_MICROMIPS)
+ defined(CONFIG_SYS_SUPPORTS_MICROMIPS)
#define get_isa16_mode(x) ((x) & 0x1)
#define msk_isa16_mode(x) ((x) & ~0x1)
-#define set_isa16_mode(x) do { (x) |= 0x1; } while (0)
+#define set_isa16_mode(x) do { (x) |= 0x1; } while(0)
#else
#define get_isa16_mode(x) 0
#define msk_isa16_mode(x) (x)
-#define set_isa16_mode(x) do { } while (0)
+#define set_isa16_mode(x) do { } while(0)
#endif
/*
@@ -848,6 +1130,123 @@ static inline int mm_insn_16bit(u16 insn)
return (opcode >= 1 && opcode <= 3) ? 1 : 0;
}
+/*
+ * Helper macros for generating raw instruction encodings in inline asm.
+ */
+#ifdef CONFIG_CPU_MICROMIPS
+#define _ASM_INSN16_IF_MM(_enc) \
+ ".insn\n\t" \
+ ".hword (" #_enc ")\n\t"
+#define _ASM_INSN32_IF_MM(_enc) \
+ ".insn\n\t" \
+ ".hword ((" #_enc ") >> 16)\n\t" \
+ ".hword ((" #_enc ") & 0xffff)\n\t"
+#else
+#define _ASM_INSN_IF_MIPS(_enc) \
+ ".insn\n\t" \
+ ".word (" #_enc ")\n\t"
+#endif
+
+#ifndef _ASM_INSN16_IF_MM
+#define _ASM_INSN16_IF_MM(_enc)
+#endif
+#ifndef _ASM_INSN32_IF_MM
+#define _ASM_INSN32_IF_MM(_enc)
+#endif
+#ifndef _ASM_INSN_IF_MIPS
+#define _ASM_INSN_IF_MIPS(_enc)
+#endif
+
+/*
+ * parse_r var, r - Helper assembler macro for parsing register names.
+ *
+ * This converts the register name in $n form provided in \r to the
+ * corresponding register number, which is assigned to the variable \var. It is
+ * needed to allow explicit encoding of instructions in inline assembly where
+ * registers are chosen by the compiler in $n form, allowing us to avoid using
+ * fixed register numbers.
+ *
+ * It also allows newer instructions (not implemented by the assembler) to be
+ * transparently implemented using assembler macros, instead of needing separate
+ * cases depending on toolchain support.
+ *
+ * Simple usage example:
+ * __asm__ __volatile__("parse_r __rt, %0\n\t"
+ * ".insn\n\t"
+ * "# di %0\n\t"
+ * ".word (0x41606000 | (__rt << 16))"
+ * : "=r" (status);
+ */
+
+/* Match an individual register number and assign to \var */
+#define _IFC_REG(n) \
+ ".ifc \\r, $" #n "\n\t" \
+ "\\var = " #n "\n\t" \
+ ".endif\n\t"
+
+__asm__(".macro parse_r var r\n\t"
+ "\\var = -1\n\t"
+ _IFC_REG(0) _IFC_REG(1) _IFC_REG(2) _IFC_REG(3)
+ _IFC_REG(4) _IFC_REG(5) _IFC_REG(6) _IFC_REG(7)
+ _IFC_REG(8) _IFC_REG(9) _IFC_REG(10) _IFC_REG(11)
+ _IFC_REG(12) _IFC_REG(13) _IFC_REG(14) _IFC_REG(15)
+ _IFC_REG(16) _IFC_REG(17) _IFC_REG(18) _IFC_REG(19)
+ _IFC_REG(20) _IFC_REG(21) _IFC_REG(22) _IFC_REG(23)
+ _IFC_REG(24) _IFC_REG(25) _IFC_REG(26) _IFC_REG(27)
+ _IFC_REG(28) _IFC_REG(29) _IFC_REG(30) _IFC_REG(31)
+ ".iflt \\var\n\t"
+ ".error \"Unable to parse register name \\r\"\n\t"
+ ".endif\n\t"
+ ".endm");
+
+#undef _IFC_REG
+
+/*
+ * C macros for generating assembler macros for common instruction formats.
+ *
+ * The names of the operands can be chosen by the caller, and the encoding of
+ * register operand \<Rn> is assigned to __<Rn> where it can be accessed from
+ * the ENC encodings.
+ */
+
+/* Instructions with no operands */
+#define _ASM_MACRO_0(OP, ENC) \
+ __asm__(".macro " #OP "\n\t" \
+ ENC \
+ ".endm")
+
+/* Instructions with 1 register operand & 1 immediate operand */
+#define _ASM_MACRO_1R1I(OP, R1, I2, ENC) \
+ __asm__(".macro " #OP " " #R1 ", " #I2 "\n\t" \
+ "parse_r __" #R1 ", \\" #R1 "\n\t" \
+ ENC \
+ ".endm")
+
+/* Instructions with 2 register operands */
+#define _ASM_MACRO_2R(OP, R1, R2, ENC) \
+ __asm__(".macro " #OP " " #R1 ", " #R2 "\n\t" \
+ "parse_r __" #R1 ", \\" #R1 "\n\t" \
+ "parse_r __" #R2 ", \\" #R2 "\n\t" \
+ ENC \
+ ".endm")
+
+/* Instructions with 3 register operands */
+#define _ASM_MACRO_3R(OP, R1, R2, R3, ENC) \
+ __asm__(".macro " #OP " " #R1 ", " #R2 ", " #R3 "\n\t" \
+ "parse_r __" #R1 ", \\" #R1 "\n\t" \
+ "parse_r __" #R2 ", \\" #R2 "\n\t" \
+ "parse_r __" #R3 ", \\" #R3 "\n\t" \
+ ENC \
+ ".endm")
+
+/* Instructions with 2 register operands and 1 optional select operand */
+#define _ASM_MACRO_2R_1S(OP, R1, R2, SEL3, ENC) \
+ __asm__(".macro " #OP " " #R1 ", " #R2 ", " #SEL3 " = 0\n\t" \
+ "parse_r __" #R1 ", \\" #R1 "\n\t" \
+ "parse_r __" #R2 ", \\" #R2 "\n\t" \
+ ENC \
+ ".endm")
+
/*
* TLB Invalidate Flush
*/
@@ -856,7 +1255,9 @@ static inline void tlbinvf(void)
__asm__ __volatile__(
".set push\n\t"
".set noreorder\n\t"
- ".word 0x42000004\n\t" /* tlbinvf */
+ "# tlbinvf\n\t"
+ _ASM_INSN_IF_MIPS(0x42000004)
+ _ASM_INSN32_IF_MM(0x0000537c)
".set pop");
}
@@ -911,40 +1312,55 @@ do { \
* Macros to access the system control coprocessor
*/
-#define __read_32bit_c0_register(source, sel) \
+#define ___read_32bit_c0_register(source, sel, vol) \
({ unsigned int __res; \
if (sel == 0) \
- __asm__ __volatile__( \
+ __asm__ vol( \
"mfc0\t%0, " #source "\n\t" \
: "=r" (__res)); \
else \
- __asm__ __volatile__( \
+ __asm__ vol( \
+ ".set\tpush\n\t" \
".set\tmips32\n\t" \
"mfc0\t%0, " #source ", " #sel "\n\t" \
- ".set\tmips0\n\t" \
+ ".set\tpop\n\t" \
: "=r" (__res)); \
__res; \
})
-#define __read_64bit_c0_register(source, sel) \
+#define ___read_64bit_c0_register(source, sel, vol) \
({ unsigned long long __res; \
if (sizeof(unsigned long) == 4) \
- __res = __read_64bit_c0_split(source, sel); \
+ __res = __read_64bit_c0_split(source, sel, vol); \
else if (sel == 0) \
- __asm__ __volatile__( \
+ __asm__ vol( \
+ ".set\tpush\n\t" \
".set\tmips3\n\t" \
"dmfc0\t%0, " #source "\n\t" \
- ".set\tmips0" \
+ ".set\tpop" \
: "=r" (__res)); \
else \
- __asm__ __volatile__( \
+ __asm__ vol( \
+ ".set\tpush\n\t" \
".set\tmips64\n\t" \
"dmfc0\t%0, " #source ", " #sel "\n\t" \
- ".set\tmips0" \
+ ".set\tpop" \
: "=r" (__res)); \
__res; \
})
+#define __read_32bit_c0_register(source, sel) \
+ ___read_32bit_c0_register(source, sel, __volatile__)
+
+#define __read_const_32bit_c0_register(source, sel) \
+ ___read_32bit_c0_register(source, sel,)
+
+#define __read_64bit_c0_register(source, sel) \
+ ___read_64bit_c0_register(source, sel, __volatile__)
+
+#define __read_const_64bit_c0_register(source, sel) \
+ ___read_64bit_c0_register(source, sel,)
+
#define __write_32bit_c0_register(register, sel, value) \
do { \
if (sel == 0) \
@@ -953,9 +1369,10 @@ do { \
: : "Jr" ((unsigned int)(value))); \
else \
__asm__ __volatile__( \
+ ".set\tpush\n\t" \
".set\tmips32\n\t" \
"mtc0\t%z0, " #register ", " #sel "\n\t" \
- ".set\tmips0" \
+ ".set\tpop" \
: : "Jr" ((unsigned int)(value))); \
} while (0)
@@ -965,15 +1382,17 @@ do { \
__write_64bit_c0_split(register, sel, value); \
else if (sel == 0) \
__asm__ __volatile__( \
+ ".set\tpush\n\t" \
".set\tmips3\n\t" \
"dmtc0\t%z0, " #register "\n\t" \
- ".set\tmips0" \
+ ".set\tpop" \
: : "Jr" (value)); \
else \
__asm__ __volatile__( \
+ ".set\tpush\n\t" \
".set\tmips64\n\t" \
"dmtc0\t%z0, " #register ", " #sel "\n\t" \
- ".set\tmips0" \
+ ".set\tpop" \
: : "Jr" (value)); \
} while (0)
@@ -982,6 +1401,11 @@ do { \
(unsigned long) __read_32bit_c0_register(reg, sel) : \
(unsigned long) __read_64bit_c0_register(reg, sel))
+#define __read_const_ulong_c0_register(reg, sel) \
+ ((sizeof(unsigned long) == 4) ? \
+ (unsigned long) __read_const_32bit_c0_register(reg, sel) : \
+ (unsigned long) __read_const_64bit_c0_register(reg, sel))
+
#define __write_ulong_c0_register(reg, sel, val) \
do { \
if (sizeof(unsigned long) == 4) \
@@ -1012,27 +1436,27 @@ do { \
* These versions are only needed for systems with more than 38 bits of
* physical address space running the 32-bit kernel. That's none atm :-)
*/
-#define __read_64bit_c0_split(source, sel) \
+#define __read_64bit_c0_split(source, sel, vol) \
({ \
unsigned long long __val; \
\
if (sel == 0) \
- __asm__ __volatile__( \
+ __asm__ vol( \
+ ".set\tpush\n\t" \
".set\tmips64\n\t" \
- "dmfc0\t%M0, " #source "\n\t" \
- "dsll\t%L0, %M0, 32\n\t" \
- "dsra\t%M0, %M0, 32\n\t" \
- "dsra\t%L0, %L0, 32\n\t" \
- ".set\tmips0" \
+ "dmfc0\t%L0, " #source "\n\t" \
+ "dsra\t%M0, %L0, 32\n\t" \
+ "sll\t%L0, %L0, 0\n\t" \
+ ".set\tpop" \
: "=r" (__val)); \
else \
- __asm__ __volatile__( \
+ __asm__ vol( \
+ ".set\tpush\n\t" \
".set\tmips64\n\t" \
- "dmfc0\t%M0, " #source ", " #sel "\n\t" \
- "dsll\t%L0, %M0, 32\n\t" \
- "dsra\t%M0, %M0, 32\n\t" \
- "dsra\t%L0, %L0, 32\n\t" \
- ".set\tmips0" \
+ "dmfc0\t%L0, " #source ", " #sel "\n\t" \
+ "dsra\t%M0, %L0, 32\n\t" \
+ "sll\t%L0, %L0, 0\n\t" \
+ ".set\tpop" \
: "=r" (__val)); \
\
__val; \
@@ -1040,60 +1464,77 @@ do { \
#define __write_64bit_c0_split(source, sel, val) \
do { \
- if (sel == 0) \
+ unsigned long long __tmp = (val); \
+ if (MIPS_ISA_REV >= 2) \
__asm__ __volatile__( \
+ ".set\tpush\n\t" \
+ ".set\t" MIPS_ISA_LEVEL "\n\t" \
+ "dins\t%L0, %M0, 32, 32\n\t" \
+ "dmtc0\t%L0, " #source ", " #sel "\n\t" \
+ ".set\tpop" \
+ : "+r" (__tmp)); \
+ else if (sel == 0) \
+ __asm__ __volatile__( \
+ ".set\tpush\n\t" \
".set\tmips64\n\t" \
"dsll\t%L0, %L0, 32\n\t" \
"dsrl\t%L0, %L0, 32\n\t" \
"dsll\t%M0, %M0, 32\n\t" \
"or\t%L0, %L0, %M0\n\t" \
"dmtc0\t%L0, " #source "\n\t" \
- ".set\tmips0" \
- : : "r" (val)); \
+ ".set\tpop" \
+ : "+r" (__tmp)); \
else \
__asm__ __volatile__( \
+ ".set\tpush\n\t" \
".set\tmips64\n\t" \
"dsll\t%L0, %L0, 32\n\t" \
"dsrl\t%L0, %L0, 32\n\t" \
"dsll\t%M0, %M0, 32\n\t" \
"or\t%L0, %L0, %M0\n\t" \
"dmtc0\t%L0, " #source ", " #sel "\n\t" \
- ".set\tmips0" \
- : : "r" (val)); \
+ ".set\tpop" \
+ : "+r" (__tmp)); \
} while (0)
-#define __readx_32bit_c0_register(source) \
+#ifndef TOOLCHAIN_SUPPORTS_XPA
+_ASM_MACRO_2R_1S(mfhc0, rt, rs, sel,
+ _ASM_INSN_IF_MIPS(0x40400000 | __rt << 16 | __rs << 11 | \\sel)
+ _ASM_INSN32_IF_MM(0x000000f4 | __rt << 21 | __rs << 16 | \\sel << 11));
+_ASM_MACRO_2R_1S(mthc0, rt, rd, sel,
+ _ASM_INSN_IF_MIPS(0x40c00000 | __rt << 16 | __rd << 11 | \\sel)
+ _ASM_INSN32_IF_MM(0x000002f4 | __rt << 21 | __rd << 16 | \\sel << 11));
+#define _ASM_SET_XPA ""
+#else /* !TOOLCHAIN_SUPPORTS_XPA */
+#define _ASM_SET_XPA ".set\txpa\n\t"
+#endif
+
+#define __readx_32bit_c0_register(source, sel) \
({ \
unsigned int __res; \
\
__asm__ __volatile__( \
" .set push \n" \
- " .set noat \n" \
" .set mips32r2 \n" \
- " .insn \n" \
- " # mfhc0 $1, %1 \n" \
- " .word (0x40410000 | ((%1 & 0x1f) << 11)) \n" \
- " move %0, $1 \n" \
+ _ASM_SET_XPA \
+ " mfhc0 %0, " #source ", %1 \n" \
" .set pop \n" \
: "=r" (__res) \
- : "i" (source)); \
+ : "i" (sel)); \
__res; \
})
-#define __writex_32bit_c0_register(register, value) \
-({ \
+#define __writex_32bit_c0_register(register, sel, value) \
+do { \
__asm__ __volatile__( \
" .set push \n" \
- " .set noat \n" \
" .set mips32r2 \n" \
- " move $1, %0 \n" \
- " # mthc0 $1, %1 \n" \
- " .insn \n" \
- " .word (0x40c10000 | ((%1 & 0x1f) << 11)) \n" \
+ _ASM_SET_XPA \
+ " mthc0 %z0, " #register ", %1 \n" \
" .set pop \n" \
: \
- : "r" (value), "i" (register)); \
-})
+ : "Jr" (value), "i" (sel)); \
+} while (0)
#define read_c0_index() __read_32bit_c0_register($0, 0)
#define write_c0_index(val) __write_32bit_c0_register($0, 0, val)
@@ -1104,24 +1545,35 @@ do { \
#define read_c0_entrylo0() __read_ulong_c0_register($2, 0)
#define write_c0_entrylo0(val) __write_ulong_c0_register($2, 0, val)
-#define readx_c0_entrylo0() __readx_32bit_c0_register(2)
-#define writex_c0_entrylo0(val) __writex_32bit_c0_register(2, val)
+#define readx_c0_entrylo0() __readx_32bit_c0_register($2, 0)
+#define writex_c0_entrylo0(val) __writex_32bit_c0_register($2, 0, val)
#define read_c0_entrylo1() __read_ulong_c0_register($3, 0)
#define write_c0_entrylo1(val) __write_ulong_c0_register($3, 0, val)
-#define readx_c0_entrylo1() __readx_32bit_c0_register(3)
-#define writex_c0_entrylo1(val) __writex_32bit_c0_register(3, val)
+#define readx_c0_entrylo1() __readx_32bit_c0_register($3, 0)
+#define writex_c0_entrylo1(val) __writex_32bit_c0_register($3, 0, val)
#define read_c0_conf() __read_32bit_c0_register($3, 0)
#define write_c0_conf(val) __write_32bit_c0_register($3, 0, val)
+#define read_c0_globalnumber() __read_32bit_c0_register($3, 1)
+
#define read_c0_context() __read_ulong_c0_register($4, 0)
#define write_c0_context(val) __write_ulong_c0_register($4, 0, val)
+#define read_c0_contextconfig() __read_32bit_c0_register($4, 1)
+#define write_c0_contextconfig(val) __write_32bit_c0_register($4, 1, val)
+
#define read_c0_userlocal() __read_ulong_c0_register($4, 2)
#define write_c0_userlocal(val) __write_ulong_c0_register($4, 2, val)
+#define read_c0_xcontextconfig() __read_ulong_c0_register($4, 3)
+#define write_c0_xcontextconfig(val) __write_ulong_c0_register($4, 3, val)
+
+#define read_c0_memorymapid() __read_32bit_c0_register($4, 5)
+#define write_c0_memorymapid(val) __write_32bit_c0_register($4, 5, val)
+
#define read_c0_pagemask() __read_32bit_c0_register($5, 0)
#define write_c0_pagemask(val) __write_32bit_c0_register($5, 0, val)
@@ -1139,6 +1591,9 @@ do { \
#define read_c0_badvaddr() __read_ulong_c0_register($8, 0)
#define write_c0_badvaddr(val) __write_ulong_c0_register($8, 0, val)
+#define read_c0_badinstr() __read_32bit_c0_register($8, 1)
+#define read_c0_badinstrp() __read_32bit_c0_register($8, 2)
+
#define read_c0_count() __read_32bit_c0_register($9, 0)
#define write_c0_count(val) __write_32bit_c0_register($9, 0, val)
@@ -1151,9 +1606,21 @@ do { \
#define read_c0_entryhi() __read_ulong_c0_register($10, 0)
#define write_c0_entryhi(val) __write_ulong_c0_register($10, 0, val)
+#define read_c0_guestctl1() __read_32bit_c0_register($10, 4)
+#define write_c0_guestctl1(val) __write_32bit_c0_register($10, 4, val)
+
+#define read_c0_guestctl2() __read_32bit_c0_register($10, 5)
+#define write_c0_guestctl2(val) __write_32bit_c0_register($10, 5, val)
+
+#define read_c0_guestctl3() __read_32bit_c0_register($10, 6)
+#define write_c0_guestctl3(val) __write_32bit_c0_register($10, 6, val)
+
#define read_c0_compare() __read_32bit_c0_register($11, 0)
#define write_c0_compare(val) __write_32bit_c0_register($11, 0, val)
+#define read_c0_guestctl0ext() __read_32bit_c0_register($11, 4)
+#define write_c0_guestctl0ext(val) __write_32bit_c0_register($11, 4, val)
+
#define read_c0_compare2() __read_32bit_c0_register($11, 6) /* pnx8550 */
#define write_c0_compare2(val) __write_32bit_c0_register($11, 6, val)
@@ -1164,13 +1631,19 @@ do { \
#define write_c0_status(val) __write_32bit_c0_register($12, 0, val)
+#define read_c0_guestctl0() __read_32bit_c0_register($12, 6)
+#define write_c0_guestctl0(val) __write_32bit_c0_register($12, 6, val)
+
+#define read_c0_gtoffset() __read_32bit_c0_register($12, 7)
+#define write_c0_gtoffset(val) __write_32bit_c0_register($12, 7, val)
+
#define read_c0_cause() __read_32bit_c0_register($13, 0)
#define write_c0_cause(val) __write_32bit_c0_register($13, 0, val)
#define read_c0_epc() __read_ulong_c0_register($14, 0)
#define write_c0_epc(val) __write_ulong_c0_register($14, 0, val)
-#define read_c0_prid() __read_32bit_c0_register($15, 0)
+#define read_c0_prid() __read_const_32bit_c0_register($15, 0)
#define read_c0_cmgcrbase() __read_ulong_c0_register($15, 3)
@@ -1349,6 +1822,9 @@ do { \
#define read_c0_ebase() __read_32bit_c0_register($15, 1)
#define write_c0_ebase(val) __write_32bit_c0_register($15, 1, val)
+#define read_c0_ebase_64() __read_64bit_c0_register($15, 1)
+#define write_c0_ebase_64(val) __write_64bit_c0_register($15, 1, val)
+
#define read_c0_cdmmbase() __read_ulong_c0_register($15, 2)
#define write_c0_cdmmbase(val) __write_ulong_c0_register($15, 2, val)
@@ -1375,6 +1851,12 @@ do { \
#define read_c0_pwctl() __read_32bit_c0_register($6, 6)
#define write_c0_pwctl(val) __write_32bit_c0_register($6, 6, val)
+#define read_c0_pgd() __read_64bit_c0_register($9, 7)
+#define write_c0_pgd(val) __write_64bit_c0_register($9, 7, val)
+
+#define read_c0_kpgd() __read_64bit_c0_register($31, 7)
+#define write_c0_kpgd(val) __write_64bit_c0_register($31, 7, val)
+
/* Cavium OCTEON (cnMIPS) */
#define read_c0_cvmcount() __read_ulong_c0_register($9, 6)
#define write_c0_cvmcount(val) __write_ulong_c0_register($9, 6, val)
@@ -1384,6 +1866,13 @@ do { \
#define read_c0_cvmmemctl() __read_64bit_c0_register($11, 7)
#define write_c0_cvmmemctl(val) __write_64bit_c0_register($11, 7, val)
+
+#define read_c0_cvmmemctl2() __read_64bit_c0_register($16, 6)
+#define write_c0_cvmmemctl2(val) __write_64bit_c0_register($16, 6, val)
+
+#define read_c0_cvmvmconfig() __read_64bit_c0_register($16, 7)
+#define write_c0_cvmvmconfig(val) __write_64bit_c0_register($16, 7, val)
+
/*
* The cacheerr registers are not standardized. On OCTEON, they are
* 64 bits wide.
@@ -1439,6 +1928,306 @@ do { \
#define read_c0_brcm_sleepcount() __read_32bit_c0_register($22, 7)
#define write_c0_brcm_sleepcount(val) __write_32bit_c0_register($22, 7, val)
+/* Ingenic page ctrl register */
+#define write_c0_page_ctrl(val) __write_32bit_c0_register($5, 4, val)
+
+/*
+ * Macros to access the guest system control coprocessor
+ */
+
+#ifndef TOOLCHAIN_SUPPORTS_VIRT
+_ASM_MACRO_2R_1S(mfgc0, rt, rs, sel,
+ _ASM_INSN_IF_MIPS(0x40600000 | __rt << 16 | __rs << 11 | \\sel)
+ _ASM_INSN32_IF_MM(0x000004fc | __rt << 21 | __rs << 16 | \\sel << 11));
+_ASM_MACRO_2R_1S(dmfgc0, rt, rs, sel,
+ _ASM_INSN_IF_MIPS(0x40600100 | __rt << 16 | __rs << 11 | \\sel)
+ _ASM_INSN32_IF_MM(0x580004fc | __rt << 21 | __rs << 16 | \\sel << 11));
+_ASM_MACRO_2R_1S(mtgc0, rt, rd, sel,
+ _ASM_INSN_IF_MIPS(0x40600200 | __rt << 16 | __rd << 11 | \\sel)
+ _ASM_INSN32_IF_MM(0x000006fc | __rt << 21 | __rd << 16 | \\sel << 11));
+_ASM_MACRO_2R_1S(dmtgc0, rt, rd, sel,
+ _ASM_INSN_IF_MIPS(0x40600300 | __rt << 16 | __rd << 11 | \\sel)
+ _ASM_INSN32_IF_MM(0x580006fc | __rt << 21 | __rd << 16 | \\sel << 11));
+_ASM_MACRO_0(tlbgp, _ASM_INSN_IF_MIPS(0x42000010)
+ _ASM_INSN32_IF_MM(0x0000017c));
+_ASM_MACRO_0(tlbgr, _ASM_INSN_IF_MIPS(0x42000009)
+ _ASM_INSN32_IF_MM(0x0000117c));
+_ASM_MACRO_0(tlbgwi, _ASM_INSN_IF_MIPS(0x4200000a)
+ _ASM_INSN32_IF_MM(0x0000217c));
+_ASM_MACRO_0(tlbgwr, _ASM_INSN_IF_MIPS(0x4200000e)
+ _ASM_INSN32_IF_MM(0x0000317c));
+_ASM_MACRO_0(tlbginvf, _ASM_INSN_IF_MIPS(0x4200000c)
+ _ASM_INSN32_IF_MM(0x0000517c));
+#define _ASM_SET_VIRT ""
+#else /* !TOOLCHAIN_SUPPORTS_VIRT */
+#define _ASM_SET_VIRT ".set\tvirt\n\t"
+#endif
+
+#define __read_32bit_gc0_register(source, sel) \
+({ int __res; \
+ __asm__ __volatile__( \
+ ".set\tpush\n\t" \
+ ".set\tmips32r2\n\t" \
+ _ASM_SET_VIRT \
+ "mfgc0\t%0, " #source ", %1\n\t" \
+ ".set\tpop" \
+ : "=r" (__res) \
+ : "i" (sel)); \
+ __res; \
+})
+
+#define __read_64bit_gc0_register(source, sel) \
+({ unsigned long long __res; \
+ __asm__ __volatile__( \
+ ".set\tpush\n\t" \
+ ".set\tmips64r2\n\t" \
+ _ASM_SET_VIRT \
+ "dmfgc0\t%0, " #source ", %1\n\t" \
+ ".set\tpop" \
+ : "=r" (__res) \
+ : "i" (sel)); \
+ __res; \
+})
+
+#define __write_32bit_gc0_register(register, sel, value) \
+do { \
+ __asm__ __volatile__( \
+ ".set\tpush\n\t" \
+ ".set\tmips32r2\n\t" \
+ _ASM_SET_VIRT \
+ "mtgc0\t%z0, " #register ", %1\n\t" \
+ ".set\tpop" \
+ : : "Jr" ((unsigned int)(value)), \
+ "i" (sel)); \
+} while (0)
+
+#define __write_64bit_gc0_register(register, sel, value) \
+do { \
+ __asm__ __volatile__( \
+ ".set\tpush\n\t" \
+ ".set\tmips64r2\n\t" \
+ _ASM_SET_VIRT \
+ "dmtgc0\t%z0, " #register ", %1\n\t" \
+ ".set\tpop" \
+ : : "Jr" (value), \
+ "i" (sel)); \
+} while (0)
+
+#define __read_ulong_gc0_register(reg, sel) \
+ ((sizeof(unsigned long) == 4) ? \
+ (unsigned long) __read_32bit_gc0_register(reg, sel) : \
+ (unsigned long) __read_64bit_gc0_register(reg, sel))
+
+#define __write_ulong_gc0_register(reg, sel, val) \
+do { \
+ if (sizeof(unsigned long) == 4) \
+ __write_32bit_gc0_register(reg, sel, val); \
+ else \
+ __write_64bit_gc0_register(reg, sel, val); \
+} while (0)
+
+#define read_gc0_index() __read_32bit_gc0_register($0, 0)
+#define write_gc0_index(val) __write_32bit_gc0_register($0, 0, val)
+
+#define read_gc0_entrylo0() __read_ulong_gc0_register($2, 0)
+#define write_gc0_entrylo0(val) __write_ulong_gc0_register($2, 0, val)
+
+#define read_gc0_entrylo1() __read_ulong_gc0_register($3, 0)
+#define write_gc0_entrylo1(val) __write_ulong_gc0_register($3, 0, val)
+
+#define read_gc0_context() __read_ulong_gc0_register($4, 0)
+#define write_gc0_context(val) __write_ulong_gc0_register($4, 0, val)
+
+#define read_gc0_contextconfig() __read_32bit_gc0_register($4, 1)
+#define write_gc0_contextconfig(val) __write_32bit_gc0_register($4, 1, val)
+
+#define read_gc0_userlocal() __read_ulong_gc0_register($4, 2)
+#define write_gc0_userlocal(val) __write_ulong_gc0_register($4, 2, val)
+
+#define read_gc0_xcontextconfig() __read_ulong_gc0_register($4, 3)
+#define write_gc0_xcontextconfig(val) __write_ulong_gc0_register($4, 3, val)
+
+#define read_gc0_pagemask() __read_32bit_gc0_register($5, 0)
+#define write_gc0_pagemask(val) __write_32bit_gc0_register($5, 0, val)
+
+#define read_gc0_pagegrain() __read_32bit_gc0_register($5, 1)
+#define write_gc0_pagegrain(val) __write_32bit_gc0_register($5, 1, val)
+
+#define read_gc0_segctl0() __read_ulong_gc0_register($5, 2)
+#define write_gc0_segctl0(val) __write_ulong_gc0_register($5, 2, val)
+
+#define read_gc0_segctl1() __read_ulong_gc0_register($5, 3)
+#define write_gc0_segctl1(val) __write_ulong_gc0_register($5, 3, val)
+
+#define read_gc0_segctl2() __read_ulong_gc0_register($5, 4)
+#define write_gc0_segctl2(val) __write_ulong_gc0_register($5, 4, val)
+
+#define read_gc0_pwbase() __read_ulong_gc0_register($5, 5)
+#define write_gc0_pwbase(val) __write_ulong_gc0_register($5, 5, val)
+
+#define read_gc0_pwfield() __read_ulong_gc0_register($5, 6)
+#define write_gc0_pwfield(val) __write_ulong_gc0_register($5, 6, val)
+
+#define read_gc0_pwsize() __read_ulong_gc0_register($5, 7)
+#define write_gc0_pwsize(val) __write_ulong_gc0_register($5, 7, val)
+
+#define read_gc0_wired() __read_32bit_gc0_register($6, 0)
+#define write_gc0_wired(val) __write_32bit_gc0_register($6, 0, val)
+
+#define read_gc0_pwctl() __read_32bit_gc0_register($6, 6)
+#define write_gc0_pwctl(val) __write_32bit_gc0_register($6, 6, val)
+
+#define read_gc0_hwrena() __read_32bit_gc0_register($7, 0)
+#define write_gc0_hwrena(val) __write_32bit_gc0_register($7, 0, val)
+
+#define read_gc0_badvaddr() __read_ulong_gc0_register($8, 0)
+#define write_gc0_badvaddr(val) __write_ulong_gc0_register($8, 0, val)
+
+#define read_gc0_badinstr() __read_32bit_gc0_register($8, 1)
+#define write_gc0_badinstr(val) __write_32bit_gc0_register($8, 1, val)
+
+#define read_gc0_badinstrp() __read_32bit_gc0_register($8, 2)
+#define write_gc0_badinstrp(val) __write_32bit_gc0_register($8, 2, val)
+
+#define read_gc0_count() __read_32bit_gc0_register($9, 0)
+
+#define read_gc0_entryhi() __read_ulong_gc0_register($10, 0)
+#define write_gc0_entryhi(val) __write_ulong_gc0_register($10, 0, val)
+
+#define read_gc0_compare() __read_32bit_gc0_register($11, 0)
+#define write_gc0_compare(val) __write_32bit_gc0_register($11, 0, val)
+
+#define read_gc0_status() __read_32bit_gc0_register($12, 0)
+#define write_gc0_status(val) __write_32bit_gc0_register($12, 0, val)
+
+#define read_gc0_intctl() __read_32bit_gc0_register($12, 1)
+#define write_gc0_intctl(val) __write_32bit_gc0_register($12, 1, val)
+
+#define read_gc0_cause() __read_32bit_gc0_register($13, 0)
+#define write_gc0_cause(val) __write_32bit_gc0_register($13, 0, val)
+
+#define read_gc0_epc() __read_ulong_gc0_register($14, 0)
+#define write_gc0_epc(val) __write_ulong_gc0_register($14, 0, val)
+
+#define read_gc0_prid() __read_32bit_gc0_register($15, 0)
+
+#define read_gc0_ebase() __read_32bit_gc0_register($15, 1)
+#define write_gc0_ebase(val) __write_32bit_gc0_register($15, 1, val)
+
+#define read_gc0_ebase_64() __read_64bit_gc0_register($15, 1)
+#define write_gc0_ebase_64(val) __write_64bit_gc0_register($15, 1, val)
+
+#define read_gc0_config() __read_32bit_gc0_register($16, 0)
+#define read_gc0_config1() __read_32bit_gc0_register($16, 1)
+#define read_gc0_config2() __read_32bit_gc0_register($16, 2)
+#define read_gc0_config3() __read_32bit_gc0_register($16, 3)
+#define read_gc0_config4() __read_32bit_gc0_register($16, 4)
+#define read_gc0_config5() __read_32bit_gc0_register($16, 5)
+#define read_gc0_config6() __read_32bit_gc0_register($16, 6)
+#define read_gc0_config7() __read_32bit_gc0_register($16, 7)
+#define write_gc0_config(val) __write_32bit_gc0_register($16, 0, val)
+#define write_gc0_config1(val) __write_32bit_gc0_register($16, 1, val)
+#define write_gc0_config2(val) __write_32bit_gc0_register($16, 2, val)
+#define write_gc0_config3(val) __write_32bit_gc0_register($16, 3, val)
+#define write_gc0_config4(val) __write_32bit_gc0_register($16, 4, val)
+#define write_gc0_config5(val) __write_32bit_gc0_register($16, 5, val)
+#define write_gc0_config6(val) __write_32bit_gc0_register($16, 6, val)
+#define write_gc0_config7(val) __write_32bit_gc0_register($16, 7, val)
+
+#define read_gc0_lladdr() __read_ulong_gc0_register($17, 0)
+#define write_gc0_lladdr(val) __write_ulong_gc0_register($17, 0, val)
+
+#define read_gc0_watchlo0() __read_ulong_gc0_register($18, 0)
+#define read_gc0_watchlo1() __read_ulong_gc0_register($18, 1)
+#define read_gc0_watchlo2() __read_ulong_gc0_register($18, 2)
+#define read_gc0_watchlo3() __read_ulong_gc0_register($18, 3)
+#define read_gc0_watchlo4() __read_ulong_gc0_register($18, 4)
+#define read_gc0_watchlo5() __read_ulong_gc0_register($18, 5)
+#define read_gc0_watchlo6() __read_ulong_gc0_register($18, 6)
+#define read_gc0_watchlo7() __read_ulong_gc0_register($18, 7)
+#define write_gc0_watchlo0(val) __write_ulong_gc0_register($18, 0, val)
+#define write_gc0_watchlo1(val) __write_ulong_gc0_register($18, 1, val)
+#define write_gc0_watchlo2(val) __write_ulong_gc0_register($18, 2, val)
+#define write_gc0_watchlo3(val) __write_ulong_gc0_register($18, 3, val)
+#define write_gc0_watchlo4(val) __write_ulong_gc0_register($18, 4, val)
+#define write_gc0_watchlo5(val) __write_ulong_gc0_register($18, 5, val)
+#define write_gc0_watchlo6(val) __write_ulong_gc0_register($18, 6, val)
+#define write_gc0_watchlo7(val) __write_ulong_gc0_register($18, 7, val)
+
+#define read_gc0_watchhi0() __read_32bit_gc0_register($19, 0)
+#define read_gc0_watchhi1() __read_32bit_gc0_register($19, 1)
+#define read_gc0_watchhi2() __read_32bit_gc0_register($19, 2)
+#define read_gc0_watchhi3() __read_32bit_gc0_register($19, 3)
+#define read_gc0_watchhi4() __read_32bit_gc0_register($19, 4)
+#define read_gc0_watchhi5() __read_32bit_gc0_register($19, 5)
+#define read_gc0_watchhi6() __read_32bit_gc0_register($19, 6)
+#define read_gc0_watchhi7() __read_32bit_gc0_register($19, 7)
+#define write_gc0_watchhi0(val) __write_32bit_gc0_register($19, 0, val)
+#define write_gc0_watchhi1(val) __write_32bit_gc0_register($19, 1, val)
+#define write_gc0_watchhi2(val) __write_32bit_gc0_register($19, 2, val)
+#define write_gc0_watchhi3(val) __write_32bit_gc0_register($19, 3, val)
+#define write_gc0_watchhi4(val) __write_32bit_gc0_register($19, 4, val)
+#define write_gc0_watchhi5(val) __write_32bit_gc0_register($19, 5, val)
+#define write_gc0_watchhi6(val) __write_32bit_gc0_register($19, 6, val)
+#define write_gc0_watchhi7(val) __write_32bit_gc0_register($19, 7, val)
+
+#define read_gc0_xcontext() __read_ulong_gc0_register($20, 0)
+#define write_gc0_xcontext(val) __write_ulong_gc0_register($20, 0, val)
+
+#define read_gc0_perfctrl0() __read_32bit_gc0_register($25, 0)
+#define write_gc0_perfctrl0(val) __write_32bit_gc0_register($25, 0, val)
+#define read_gc0_perfcntr0() __read_32bit_gc0_register($25, 1)
+#define write_gc0_perfcntr0(val) __write_32bit_gc0_register($25, 1, val)
+#define read_gc0_perfcntr0_64() __read_64bit_gc0_register($25, 1)
+#define write_gc0_perfcntr0_64(val) __write_64bit_gc0_register($25, 1, val)
+#define read_gc0_perfctrl1() __read_32bit_gc0_register($25, 2)
+#define write_gc0_perfctrl1(val) __write_32bit_gc0_register($25, 2, val)
+#define read_gc0_perfcntr1() __read_32bit_gc0_register($25, 3)
+#define write_gc0_perfcntr1(val) __write_32bit_gc0_register($25, 3, val)
+#define read_gc0_perfcntr1_64() __read_64bit_gc0_register($25, 3)
+#define write_gc0_perfcntr1_64(val) __write_64bit_gc0_register($25, 3, val)
+#define read_gc0_perfctrl2() __read_32bit_gc0_register($25, 4)
+#define write_gc0_perfctrl2(val) __write_32bit_gc0_register($25, 4, val)
+#define read_gc0_perfcntr2() __read_32bit_gc0_register($25, 5)
+#define write_gc0_perfcntr2(val) __write_32bit_gc0_register($25, 5, val)
+#define read_gc0_perfcntr2_64() __read_64bit_gc0_register($25, 5)
+#define write_gc0_perfcntr2_64(val) __write_64bit_gc0_register($25, 5, val)
+#define read_gc0_perfctrl3() __read_32bit_gc0_register($25, 6)
+#define write_gc0_perfctrl3(val) __write_32bit_gc0_register($25, 6, val)
+#define read_gc0_perfcntr3() __read_32bit_gc0_register($25, 7)
+#define write_gc0_perfcntr3(val) __write_32bit_gc0_register($25, 7, val)
+#define read_gc0_perfcntr3_64() __read_64bit_gc0_register($25, 7)
+#define write_gc0_perfcntr3_64(val) __write_64bit_gc0_register($25, 7, val)
+
+#define read_gc0_errorepc() __read_ulong_gc0_register($30, 0)
+#define write_gc0_errorepc(val) __write_ulong_gc0_register($30, 0, val)
+
+#define read_gc0_kscratch1() __read_ulong_gc0_register($31, 2)
+#define read_gc0_kscratch2() __read_ulong_gc0_register($31, 3)
+#define read_gc0_kscratch3() __read_ulong_gc0_register($31, 4)
+#define read_gc0_kscratch4() __read_ulong_gc0_register($31, 5)
+#define read_gc0_kscratch5() __read_ulong_gc0_register($31, 6)
+#define read_gc0_kscratch6() __read_ulong_gc0_register($31, 7)
+#define write_gc0_kscratch1(val) __write_ulong_gc0_register($31, 2, val)
+#define write_gc0_kscratch2(val) __write_ulong_gc0_register($31, 3, val)
+#define write_gc0_kscratch3(val) __write_ulong_gc0_register($31, 4, val)
+#define write_gc0_kscratch4(val) __write_ulong_gc0_register($31, 5, val)
+#define write_gc0_kscratch5(val) __write_ulong_gc0_register($31, 6, val)
+#define write_gc0_kscratch6(val) __write_ulong_gc0_register($31, 7, val)
+
+/* Cavium OCTEON (cnMIPS) */
+#define read_gc0_cvmcount() __read_ulong_gc0_register($9, 6)
+#define write_gc0_cvmcount(val) __write_ulong_gc0_register($9, 6, val)
+
+#define read_gc0_cvmctl() __read_64bit_gc0_register($9, 7)
+#define write_gc0_cvmctl(val) __write_64bit_gc0_register($9, 7, val)
+
+#define read_gc0_cvmmemctl() __read_64bit_gc0_register($11, 7)
+#define write_gc0_cvmmemctl(val) __write_64bit_gc0_register($11, 7, val)
+
+#define read_gc0_cvmmemctl2() __read_64bit_gc0_register($16, 6)
+#define write_gc0_cvmmemctl2(val) __write_64bit_gc0_register($16, 6, val)
+
/*
* Macros to access the floating point coprocessor control registers
*/
@@ -1460,7 +2249,7 @@ do { \
})
#define _write_32bit_cp1_register(dest, val, gas_hardfloat) \
-({ \
+do { \
__asm__ __volatile__( \
" .set push \n" \
" .set reorder \n" \
@@ -1468,7 +2257,7 @@ do { \
" ctc1 %0,"STR(dest)" \n" \
" .set pop \n" \
: : "r" (val)); \
-})
+} while (0)
#ifdef GAS_HAS_SET_HARDFLOAT
#define read_32bit_cp1_register(source) \
@@ -1482,13 +2271,14 @@ do { \
_write_32bit_cp1_register(dest, val, )
#endif
-#ifdef HAVE_AS_DSP
+#ifdef TOOLCHAIN_SUPPORTS_DSP
#define rddsp(mask) \
({ \
unsigned int __dspctl; \
\
__asm__ __volatile__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" rddsp %0, %x1 \n" \
" .set pop \n" \
@@ -1498,25 +2288,27 @@ do { \
})
#define wrdsp(val, mask) \
-({ \
+do { \
__asm__ __volatile__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" wrdsp %0, %x1 \n" \
" .set pop \n" \
: \
: "r" (val), "i" (mask)); \
-})
+} while (0)
#define mflo0() \
({ \
long mflo0; \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mflo %0, $ac0 \n" \
- " .set pop \n" \
- : "=r" (mflo0)); \
+ " .set pop \n" \
+ : "=r" (mflo0)); \
mflo0; \
})
@@ -1525,10 +2317,11 @@ do { \
long mflo1; \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mflo %0, $ac1 \n" \
- " .set pop \n" \
- : "=r" (mflo1)); \
+ " .set pop \n" \
+ : "=r" (mflo1)); \
mflo1; \
})
@@ -1537,10 +2330,11 @@ do { \
long mflo2; \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mflo %0, $ac2 \n" \
- " .set pop \n" \
- : "=r" (mflo2)); \
+ " .set pop \n" \
+ : "=r" (mflo2)); \
mflo2; \
})
@@ -1549,10 +2343,11 @@ do { \
long mflo3; \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mflo %0, $ac3 \n" \
- " .set pop \n" \
- : "=r" (mflo3)); \
+ " .set pop \n" \
+ : "=r" (mflo3)); \
mflo3; \
})
@@ -1561,10 +2356,11 @@ do { \
long mfhi0; \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mfhi %0, $ac0 \n" \
- " .set pop \n" \
- : "=r" (mfhi0)); \
+ " .set pop \n" \
+ : "=r" (mfhi0)); \
mfhi0; \
})
@@ -1573,10 +2369,11 @@ do { \
long mfhi1; \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mfhi %0, $ac1 \n" \
- " .set pop \n" \
- : "=r" (mfhi1)); \
+ " .set pop \n" \
+ : "=r" (mfhi1)); \
mfhi1; \
})
@@ -1585,10 +2382,11 @@ do { \
long mfhi2; \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mfhi %0, $ac2 \n" \
- " .set pop \n" \
- : "=r" (mfhi2)); \
+ " .set pop \n" \
+ : "=r" (mfhi2)); \
mfhi2; \
})
@@ -1597,10 +2395,11 @@ do { \
long mfhi3; \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mfhi %0, $ac3 \n" \
- " .set pop \n" \
- : "=r" (mfhi3)); \
+ " .set pop \n" \
+ : "=r" (mfhi3)); \
mfhi3; \
})
@@ -1609,6 +2408,7 @@ do { \
({ \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mtlo %0, $ac0 \n" \
" .set pop \n" \
@@ -1620,6 +2420,7 @@ do { \
({ \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mtlo %0, $ac1 \n" \
" .set pop \n" \
@@ -1631,6 +2432,7 @@ do { \
({ \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mtlo %0, $ac2 \n" \
" .set pop \n" \
@@ -1642,6 +2444,7 @@ do { \
({ \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mtlo %0, $ac3 \n" \
" .set pop \n" \
@@ -1653,6 +2456,7 @@ do { \
({ \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mthi %0, $ac0 \n" \
" .set pop \n" \
@@ -1664,6 +2468,7 @@ do { \
({ \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mthi %0, $ac1 \n" \
" .set pop \n" \
@@ -1675,6 +2480,7 @@ do { \
({ \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mthi %0, $ac2 \n" \
" .set pop \n" \
@@ -1686,6 +2492,7 @@ do { \
({ \
__asm__( \
" .set push \n" \
+ " .set " MIPS_ISA_LEVEL " \n" \
" .set dsp \n" \
" mthi %0, $ac3 \n" \
" .set pop \n" \
@@ -1695,7 +2502,6 @@ do { \
#else
-#ifdef CONFIG_CPU_MICROMIPS
#define rddsp(mask) \
({ \
unsigned int __res; \
@@ -1704,8 +2510,8 @@ do { \
" .set push \n" \
" .set noat \n" \
" # rddsp $1, %x1 \n" \
- " .hword ((0x0020067c | (%x1 << 14)) >> 16) \n" \
- " .hword ((0x0020067c | (%x1 << 14)) & 0xffff) \n" \
+ _ASM_INSN_IF_MIPS(0x7c000cb8 | (%x1 << 16)) \
+ _ASM_INSN32_IF_MM(0x0020067c | (%x1 << 14)) \
" move %0, $1 \n" \
" .set pop \n" \
: "=r" (__res) \
@@ -1714,28 +2520,28 @@ do { \
})
#define wrdsp(val, mask) \
-({ \
+do { \
__asm__ __volatile__( \
" .set push \n" \
" .set noat \n" \
" move $1, %0 \n" \
" # wrdsp $1, %x1 \n" \
- " .hword ((0x0020167c | (%x1 << 14)) >> 16) \n" \
- " .hword ((0x0020167c | (%x1 << 14)) & 0xffff) \n" \
+ _ASM_INSN_IF_MIPS(0x7c2004f8 | (%x1 << 11)) \
+ _ASM_INSN32_IF_MM(0x0020167c | (%x1 << 14)) \
" .set pop \n" \
: \
: "r" (val), "i" (mask)); \
-})
+} while (0)
-#define _umips_dsp_mfxxx(ins) \
+#define _dsp_mfxxx(ins) \
({ \
unsigned long __treg; \
\
__asm__ __volatile__( \
" .set push \n" \
" .set noat \n" \
- " .hword 0x0001 \n" \
- " .hword %x1 \n" \
+ _ASM_INSN_IF_MIPS(0x00000810 | %X1) \
+ _ASM_INSN32_IF_MM(0x0001007c | %x1) \
" move %0, $1 \n" \
" .set pop \n" \
: "=r" (__treg) \
@@ -1743,101 +2549,28 @@ do { \
__treg; \
})
-#define _umips_dsp_mtxxx(val, ins) \
-({ \
+#define _dsp_mtxxx(val, ins) \
+do { \
__asm__ __volatile__( \
" .set push \n" \
" .set noat \n" \
" move $1, %0 \n" \
- " .hword 0x0001 \n" \
- " .hword %x1 \n" \
+ _ASM_INSN_IF_MIPS(0x00200011 | %X1) \
+ _ASM_INSN32_IF_MM(0x0001207c | %x1) \
" .set pop \n" \
: \
: "r" (val), "i" (ins)); \
-})
-
-#define _umips_dsp_mflo(reg) _umips_dsp_mfxxx((reg << 14) | 0x107c)
-#define _umips_dsp_mfhi(reg) _umips_dsp_mfxxx((reg << 14) | 0x007c)
-
-#define _umips_dsp_mtlo(val, reg) _umips_dsp_mtxxx(val, ((reg << 14) | 0x307c))
-#define _umips_dsp_mthi(val, reg) _umips_dsp_mtxxx(val, ((reg << 14) | 0x207c))
-
-#define mflo0() _umips_dsp_mflo(0)
-#define mflo1() _umips_dsp_mflo(1)
-#define mflo2() _umips_dsp_mflo(2)
-#define mflo3() _umips_dsp_mflo(3)
+} while (0)
-#define mfhi0() _umips_dsp_mfhi(0)
-#define mfhi1() _umips_dsp_mfhi(1)
-#define mfhi2() _umips_dsp_mfhi(2)
-#define mfhi3() _umips_dsp_mfhi(3)
+#ifdef CONFIG_CPU_MICROMIPS
-#define mtlo0(x) _umips_dsp_mtlo(x, 0)
-#define mtlo1(x) _umips_dsp_mtlo(x, 1)
-#define mtlo2(x) _umips_dsp_mtlo(x, 2)
-#define mtlo3(x) _umips_dsp_mtlo(x, 3)
+#define _dsp_mflo(reg) _dsp_mfxxx((reg << 14) | 0x1000)
+#define _dsp_mfhi(reg) _dsp_mfxxx((reg << 14) | 0x0000)
-#define mthi0(x) _umips_dsp_mthi(x, 0)
-#define mthi1(x) _umips_dsp_mthi(x, 1)
-#define mthi2(x) _umips_dsp_mthi(x, 2)
-#define mthi3(x) _umips_dsp_mthi(x, 3)
+#define _dsp_mtlo(val, reg) _dsp_mtxxx(val, ((reg << 14) | 0x1000))
+#define _dsp_mthi(val, reg) _dsp_mtxxx(val, ((reg << 14) | 0x0000))
#else /* !CONFIG_CPU_MICROMIPS */
-#define rddsp(mask) \
-({ \
- unsigned int __res; \
- \
- __asm__ __volatile__( \
- " .set push \n" \
- " .set noat \n" \
- " # rddsp $1, %x1 \n" \
- " .word 0x7c000cb8 | (%x1 << 16) \n" \
- " move %0, $1 \n" \
- " .set pop \n" \
- : "=r" (__res) \
- : "i" (mask)); \
- __res; \
-})
-
-#define wrdsp(val, mask) \
-({ \
- __asm__ __volatile__( \
- " .set push \n" \
- " .set noat \n" \
- " move $1, %0 \n" \
- " # wrdsp $1, %x1 \n" \
- " .word 0x7c2004f8 | (%x1 << 11) \n" \
- " .set pop \n" \
- : \
- : "r" (val), "i" (mask)); \
-})
-
-#define _dsp_mfxxx(ins) \
-({ \
- unsigned long __treg; \
- \
- __asm__ __volatile__( \
- " .set push \n" \
- " .set noat \n" \
- " .word (0x00000810 | %1) \n" \
- " move %0, $1 \n" \
- " .set pop \n" \
- : "=r" (__treg) \
- : "i" (ins)); \
- __treg; \
-})
-
-#define _dsp_mtxxx(val, ins) \
-({ \
- __asm__ __volatile__( \
- " .set push \n" \
- " .set noat \n" \
- " move $1, %0 \n" \
- " .word (0x00200011 | %1) \n" \
- " .set pop \n" \
- : \
- : "r" (val), "i" (ins)); \
-})
#define _dsp_mflo(reg) _dsp_mfxxx((reg << 21) | 0x0002)
#define _dsp_mfhi(reg) _dsp_mfxxx((reg << 21) | 0x0000)
@@ -1845,6 +2578,8 @@ do { \
#define _dsp_mtlo(val, reg) _dsp_mtxxx(val, ((reg << 11) | 0x0002))
#define _dsp_mthi(val, reg) _dsp_mtxxx(val, ((reg << 11) | 0x0000))
+#endif /* CONFIG_CPU_MICROMIPS */
+
#define mflo0() _dsp_mflo(0)
#define mflo1() _dsp_mflo(1)
#define mflo2() _dsp_mflo(2)
@@ -1865,7 +2600,6 @@ do { \
#define mthi2(x) _dsp_mthi(x, 2)
#define mthi3(x) _dsp_mthi(x, 3)
-#endif /* CONFIG_CPU_MICROMIPS */
#endif
/*
@@ -1935,54 +2669,123 @@ static inline void tlb_write_random(void)
}
/*
- * Manipulate bits in a c0 register.
+ * Guest TLB operations.
+ *
+ * It is responsibility of the caller to take care of any TLB hazards.
*/
-#define __BUILD_SET_C0(name) \
+static inline void guest_tlb_probe(void)
+{
+ __asm__ __volatile__(
+ ".set push\n\t"
+ ".set noreorder\n\t"
+ _ASM_SET_VIRT
+ "tlbgp\n\t"
+ ".set pop");
+}
+
+static inline void guest_tlb_read(void)
+{
+ __asm__ __volatile__(
+ ".set push\n\t"
+ ".set noreorder\n\t"
+ _ASM_SET_VIRT
+ "tlbgr\n\t"
+ ".set pop");
+}
+
+static inline void guest_tlb_write_indexed(void)
+{
+ __asm__ __volatile__(
+ ".set push\n\t"
+ ".set noreorder\n\t"
+ _ASM_SET_VIRT
+ "tlbgwi\n\t"
+ ".set pop");
+}
+
+static inline void guest_tlb_write_random(void)
+{
+ __asm__ __volatile__(
+ ".set push\n\t"
+ ".set noreorder\n\t"
+ _ASM_SET_VIRT
+ "tlbgwr\n\t"
+ ".set pop");
+}
+
+/*
+ * Guest TLB Invalidate Flush
+ */
+static inline void guest_tlbinvf(void)
+{
+ __asm__ __volatile__(
+ ".set push\n\t"
+ ".set noreorder\n\t"
+ _ASM_SET_VIRT
+ "tlbginvf\n\t"
+ ".set pop");
+}
+
+/*
+ * Manipulate bits in a register.
+ */
+#define __BUILD_SET_COMMON(name) \
static inline unsigned int \
-set_c0_##name(unsigned int set) \
+set_##name(unsigned int set) \
{ \
unsigned int res, new; \
\
- res = read_c0_##name(); \
+ res = read_##name(); \
new = res | set; \
- write_c0_##name(new); \
+ write_##name(new); \
\
return res; \
} \
\
static inline unsigned int \
-clear_c0_##name(unsigned int clear) \
+clear_##name(unsigned int clear) \
{ \
unsigned int res, new; \
\
- res = read_c0_##name(); \
+ res = read_##name(); \
new = res & ~clear; \
- write_c0_##name(new); \
+ write_##name(new); \
\
return res; \
} \
\
static inline unsigned int \
-change_c0_##name(unsigned int change, unsigned int val) \
+change_##name(unsigned int change, unsigned int val) \
{ \
unsigned int res, new; \
\
- res = read_c0_##name(); \
+ res = read_##name(); \
new = res & ~change; \
new |= (val & change); \
- write_c0_##name(new); \
+ write_##name(new); \
\
return res; \
}
+/*
+ * Manipulate bits in a c0 register.
+ */
+#define __BUILD_SET_C0(name) __BUILD_SET_COMMON(c0_##name)
+
__BUILD_SET_C0(status)
__BUILD_SET_C0(cause)
__BUILD_SET_C0(config)
__BUILD_SET_C0(config5)
+__BUILD_SET_C0(config7)
__BUILD_SET_C0(intcontrol)
__BUILD_SET_C0(intctl)
__BUILD_SET_C0(srsmap)
__BUILD_SET_C0(pagegrain)
+__BUILD_SET_C0(guestctl0)
+__BUILD_SET_C0(guestctl0ext)
+__BUILD_SET_C0(guestctl1)
+__BUILD_SET_C0(guestctl2)
+__BUILD_SET_C0(guestctl3)
__BUILD_SET_C0(brcm_config_0)
__BUILD_SET_C0(brcm_bus_pll)
__BUILD_SET_C0(brcm_reset)
@@ -1991,13 +2794,24 @@ __BUILD_SET_C0(brcm_cmt_ctrl)
__BUILD_SET_C0(brcm_config)
__BUILD_SET_C0(brcm_mode)
+/*
+ * Manipulate bits in a guest c0 register.
+ */
+#define __BUILD_SET_GC0(name) __BUILD_SET_COMMON(gc0_##name)
+
+__BUILD_SET_GC0(wired)
+__BUILD_SET_GC0(status)
+__BUILD_SET_GC0(cause)
+__BUILD_SET_GC0(ebase)
+__BUILD_SET_GC0(config1)
+
/*
* Return low 10 bits of ebase.
* Note that under KVM (MIPSVZ) this returns vcpu id.
*/
static inline unsigned int get_ebase_cpunum(void)
{
- return read_c0_ebase() & 0x3ff;
+ return read_c0_ebase() & MIPS_EBASE_CPUNUM;
}
static inline void write_one_tlb(int index, u32 pagemask, u32 hi, u32 low0,
@@ -110,7 +110,7 @@ void trap_init(ulong reloc_addr)
/* Set WG bit on Octeon to enable writing to bits 63:30 */
if (IS_ENABLED(CONFIG_ARCH_OCTEON))
- ebase |= EBASE_WG;
+ ebase |= MIPS_EBASE_WG;
write_c0_ebase(ebase);
clear_c0_status(ST0_BEV);
Sync asm/mipsregs.h with Linux 5.7. Also replace the custom symbols EBASE_CPUNUM and EBASE_WG with the according symbols from Linux. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck at gmail.com> --- arch/mips/cpu/start.S | 2 +- arch/mips/include/asm/compiler.h | 69 ++ arch/mips/include/asm/isa-rev.h | 24 + arch/mips/include/asm/mipsregs.h | 1202 +++++++++++++++++++++++++----- arch/mips/lib/traps.c | 2 +- 5 files changed, 1103 insertions(+), 196 deletions(-) create mode 100644 arch/mips/include/asm/compiler.h create mode 100644 arch/mips/include/asm/isa-rev.h