From: Leonid Yegoshin <Leonid.Yegoshin@xxxxxxxxxx>
The proAptiv Multiprocessing System is a power efficient multi-core
microprocessor for use in system-on-chip (SoC) applications.
The proAptiv Multiprocessing System combines a deep pipeline
with multi-issue out of order execution for improved computational
throughput. The proAptiv Multiprocessing System can contain one to
six MIPS32r3 proAptiv cores, system level coherence
manager with L2 cache, optional coherent I/O port, and optional
floating point unit.
Reviewed-by: Paul Burton <paul.burton@xxxxxxxxxx>
Reviewed-by: James Hogan <james.hogan@xxxxxxxxxx>
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@xxxxxxxxxx>
Signed-off-by: Markos Chandras <markos.chandras@xxxxxxxxxx>
---
arch/mips/include/asm/cpu-features.h | 3 +++
arch/mips/include/asm/cpu-type.h | 1 +
arch/mips/include/asm/cpu.h | 5 ++++-
arch/mips/include/asm/tlb.h | 4 +++-
arch/mips/kernel/cpu-probe.c | 15 +++++++++++++++
arch/mips/kernel/idle.c | 1 +
arch/mips/kernel/spram.c | 1 +
arch/mips/kernel/traps.c | 1 +
arch/mips/mm/c-r4k.c | 1 +
arch/mips/mm/sc-mips.c | 1 +
arch/mips/mm/tlbex.c | 1 +
arch/mips/oprofile/op_model_mipsxx.c | 4 ++++
12 files changed, 36 insertions(+), 2 deletions(-)
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index d445d06..296606b 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -20,6 +20,9 @@
#ifndef cpu_has_tlb
#define cpu_has_tlb (cpu_data[0].options & MIPS_CPU_TLB)
#endif
+#ifndef cpu_has_tlbinv
+#define cpu_has_tlbinv (cpu_data[0].options & MIPS_CPU_TLBINV)
+#endif
/*
* For the moment we don't consider R6000 and R8000 so we can assume that
diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h
index 4a402cc..673f426 100644
--- a/arch/mips/include/asm/cpu-type.h
+++ b/arch/mips/include/asm/cpu-type.h
@@ -47,6 +47,7 @@ static inline int __pure __get_cpu_type(const int cpu_type)
case CPU_74K:
case CPU_M14KC:
case CPU_M14KEC:
+ case CPU_PROAPTIV:
#endif
#ifdef CONFIG_SYS_HAS_CPU_MIPS64_R1
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index d2035e1..ca5827c 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -111,6 +111,8 @@
#define PRID_IMP_1074K 0x9a00
#define PRID_IMP_M14KC 0x9c00
#define PRID_IMP_M14KEC 0x9e00
+#define PRID_IMP_PROAPTIV_UP 0xa200
+#define PRID_IMP_PROAPTIV_MP 0xa300
/*
* These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
@@ -289,7 +291,7 @@ enum cpu_type_enum {
CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K,
CPU_ALCHEMY, CPU_PR4450, CPU_BMIPS32, CPU_BMIPS3300, CPU_BMIPS4350,
CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC, CPU_LOONGSON1, CPU_M14KC,
- CPU_M14KEC,
+ CPU_M14KEC, CPU_PROAPTIV,
/*
* MIPS64 class processors
@@ -348,6 +350,7 @@ enum cpu_type_enum {
#define MIPS_CPU_PCI 0x00400000 /* CPU has Perf Ctr Int indicator */
#define MIPS_CPU_RIXI 0x00800000 /* CPU has TLB Read/eXec Inhibit */
#define MIPS_CPU_MICROMIPS 0x01000000 /* CPU has microMIPS capability */
+#define MIPS_CPU_TLBINV 0x02000000 /* CPU supports TLBINV/F */
/*
* CPU ASE encodings
diff --git a/arch/mips/include/asm/tlb.h b/arch/mips/include/asm/tlb.h
index 235367ce..4a23493 100644
--- a/arch/mips/include/asm/tlb.h
+++ b/arch/mips/include/asm/tlb.h
@@ -18,7 +18,9 @@
*/
#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
-#define UNIQUE_ENTRYHI(idx) (CKSEG0 + ((idx) << (PAGE_SHIFT + 1)))
+#define UNIQUE_ENTRYHI(idx) \
+ ((CKSEG0 + ((idx) << (PAGE_SHIFT + 1))) | \
+ (cpu_has_tlbinv ? MIPS_ENTRYHI_EHINV : 0))
#include <asm-generic/tlb.h>
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index c814287..8168e29 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -286,6 +286,13 @@ static inline unsigned int decode_config4(struct cpuinfo_mips *c)
&& cpu_has_tlb)
c->tlbsize += (config4 & MIPS_CONF4_MMUSIZEEXT) * 0x40;
+ if (cpu_has_tlb) {
+ if (((config4 & MIPS_CONF4_IE) >> 29) == 2) {
+ c->options |= MIPS_CPU_TLBINV;
+ pr_info("TLBINV/F supported, config4=0x%0x\n", config4);
+ }
+ }
+
c->kscratch_mask = (config4 >> 16) & 0xff;
return config4 & MIPS_CONF_M;
@@ -739,6 +746,14 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu)
c->cputype = CPU_74K;
__cpu_name[cpu] = "MIPS 1074Kc";
break;
+ case PRID_IMP_PROAPTIV_UP:
+ c->cputype = CPU_PROAPTIV;
+ __cpu_name[cpu] = "MIPS proAptiv";
+ break;
+ case PRID_IMP_PROAPTIV_MP:
+ c->cputype = CPU_PROAPTIV;
+ __cpu_name[cpu] = "MIPS proAptiv (multi)";
+ break;
}
spram_config();
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c
index f7991d9..cb2c94f 100644
--- a/arch/mips/kernel/idle.c
+++ b/arch/mips/kernel/idle.c
@@ -184,6 +184,7 @@ void __init check_wait(void)
case CPU_24K:
case CPU_34K:
case CPU_1004K:
+ case CPU_PROAPTIV:
cpu_wait = r4k_wait;
if (read_c0_config7() & MIPS_CONF7_WII)
cpu_wait = r4k_wait_irqoff;
diff --git a/arch/mips/kernel/spram.c b/arch/mips/kernel/spram.c
index 93f8681..fb72b80 100644
--- a/arch/mips/kernel/spram.c
+++ b/arch/mips/kernel/spram.c
@@ -206,6 +206,7 @@ void spram_config(void)
case CPU_34K:
case CPU_74K:
case CPU_1004K:
+ case CPU_PROAPTIV:
config0 = read_c0_config();
/* FIXME: addresses are Malta specific */
if (config0 & (1<<24)) {
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index f9c8746..cc20415 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1336,6 +1336,7 @@ static inline void parity_protection_init(void)
case CPU_34K:
case CPU_74K:
case CPU_1004K:
+ case CPU_PROAPTIV:
{
#define ERRCTL_PE 0x80000000
#define ERRCTL_L2P 0x00800000
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 62ffd20..24b3a63 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1098,6 +1098,7 @@ static void probe_pcache(void)
case CPU_34K:
case CPU_74K:
case CPU_1004K:
+ case CPU_PROAPTIV:
if (current_cpu_type() == CPU_74K)
alias_74k_erratum(c);
if ((read_c0_config7() & (1 << 16))) {
diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c
index 08d05ae..317c249 100644
--- a/arch/mips/mm/sc-mips.c
+++ b/arch/mips/mm/sc-mips.c
@@ -76,6 +76,7 @@ static inline int mips_sc_is_activated(struct cpuinfo_mips *c)
case CPU_34K:
case CPU_74K:
case CPU_1004K:
+ case CPU_PROAPTIV:
case CPU_BMIPS5000:
if (config2 & (1 << 12))
return 0;
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 183f2b5..6fdfe1f 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -510,6 +510,7 @@ static void build_tlb_write_entry(u32 **p, struct uasm_label **l,
switch (current_cpu_type()) {
case CPU_M14KC:
case CPU_74K:
+ case CPU_PROAPTIV:
break;
default:
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index 3a2b6e9..3e28aaa 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -376,6 +376,10 @@ static int __init mipsxx_init(void)
op_model_mipsxx_ops.cpu_type = "mips/74K";
break;
+ case CPU_PROAPTIV:
+ op_model_mipsxx_ops.cpu_type = "mips/proAptiv";
+ break;
+
case CPU_5KC:
op_model_mipsxx_ops.cpu_type = "mips/5K";
break;
--
1.8.4
