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-rw-r--r--arch/mips/kernel/Makefile1
-rw-r--r--arch/mips/kernel/cpu-probe.c23
-rw-r--r--arch/mips/kernel/cpu-r3k-probe.c22
-rw-r--r--arch/mips/kernel/elf.c16
-rw-r--r--arch/mips/kernel/entry.S3
-rw-r--r--arch/mips/kernel/genex.S5
-rw-r--r--arch/mips/kernel/idle.c10
-rw-r--r--arch/mips/kernel/irq_txx9.c13
-rw-r--r--arch/mips/kernel/proc.c2
-rw-r--r--arch/mips/kernel/process.c2
-rw-r--r--arch/mips/kernel/prom.c5
-rw-r--r--arch/mips/kernel/r4k-bugs64.c9
-rw-r--r--arch/mips/kernel/scall32-o32.S1
-rw-r--r--arch/mips/kernel/scall64-n64.S1
-rw-r--r--arch/mips/kernel/signal.c1
-rw-r--r--arch/mips/kernel/signal_n32.c1
-rw-r--r--arch/mips/kernel/traps.c22
17 files changed, 31 insertions, 106 deletions
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 814b3da30501..7c96282bff2e 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -44,7 +44,6 @@ obj-$(CONFIG_FUNCTION_TRACER) += mcount.o ftrace.o
sw-y := r4k_switch.o
sw-$(CONFIG_CPU_R3000) := r2300_switch.o
-sw-$(CONFIG_CPU_TX39XX) := r2300_switch.o
sw-$(CONFIG_CPU_CAVIUM_OCTEON) := octeon_switch.o
obj-y += $(sw-y)
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 24a529c6c4be..f0ea92937546 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -1189,29 +1189,6 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
c->tlbsize = 48;
break;
#endif
- case PRID_IMP_TX39:
- c->fpu_msk31 |= FPU_CSR_CONDX | FPU_CSR_FS;
- c->options = MIPS_CPU_TLB | MIPS_CPU_TX39_CACHE;
-
- if ((c->processor_id & 0xf0) == (PRID_REV_TX3927 & 0xf0)) {
- c->cputype = CPU_TX3927;
- __cpu_name[cpu] = "TX3927";
- c->tlbsize = 64;
- } else {
- switch (c->processor_id & PRID_REV_MASK) {
- case PRID_REV_TX3912:
- c->cputype = CPU_TX3912;
- __cpu_name[cpu] = "TX3912";
- c->tlbsize = 32;
- break;
- case PRID_REV_TX3922:
- c->cputype = CPU_TX3922;
- __cpu_name[cpu] = "TX3922";
- c->tlbsize = 64;
- break;
- }
- }
- break;
case PRID_IMP_R4700:
c->cputype = CPU_R4700;
__cpu_name[cpu] = "R4700";
diff --git a/arch/mips/kernel/cpu-r3k-probe.c b/arch/mips/kernel/cpu-r3k-probe.c
index af654771918c..be93469c0e0e 100644
--- a/arch/mips/kernel/cpu-r3k-probe.c
+++ b/arch/mips/kernel/cpu-r3k-probe.c
@@ -118,28 +118,6 @@ void cpu_probe(void)
c->options |= MIPS_CPU_FPU;
c->tlbsize = 64;
break;
- case PRID_COMP_LEGACY | PRID_IMP_TX39:
- c->options = MIPS_CPU_TLB | MIPS_CPU_TX39_CACHE;
-
- if ((c->processor_id & 0xf0) == (PRID_REV_TX3927 & 0xf0)) {
- c->cputype = CPU_TX3927;
- __cpu_name[cpu] = "TX3927";
- c->tlbsize = 64;
- } else {
- switch (c->processor_id & PRID_REV_MASK) {
- case PRID_REV_TX3912:
- c->cputype = CPU_TX3912;
- __cpu_name[cpu] = "TX3912";
- c->tlbsize = 32;
- break;
- case PRID_REV_TX3922:
- c->cputype = CPU_TX3922;
- __cpu_name[cpu] = "TX3922";
- c->tlbsize = 64;
- break;
- }
- }
- break;
}
BUG_ON(!__cpu_name[cpu]);
diff --git a/arch/mips/kernel/elf.c b/arch/mips/kernel/elf.c
index 7b045d2a0b51..5582a4ca1e9e 100644
--- a/arch/mips/kernel/elf.c
+++ b/arch/mips/kernel/elf.c
@@ -328,16 +328,10 @@ void mips_set_personality_nan(struct arch_elf_state *state)
int mips_elf_read_implies_exec(void *elf_ex, int exstack)
{
- if (exstack != EXSTACK_DISABLE_X) {
- /* The binary doesn't request a non-executable stack */
- return 1;
- }
-
- if (!cpu_has_rixi) {
- /* The CPU doesn't support non-executable memory */
- return 1;
- }
-
- return 0;
+ /*
+ * Set READ_IMPLIES_EXEC only on non-NX systems that
+ * do not request a specific state via PT_GNU_STACK.
+ */
+ return (!cpu_has_rixi && exstack == EXSTACK_DEFAULT);
}
EXPORT_SYMBOL(mips_elf_read_implies_exec);
diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
index 4b896f5023ff..891393626dc6 100644
--- a/arch/mips/kernel/entry.S
+++ b/arch/mips/kernel/entry.S
@@ -17,7 +17,6 @@
#include <asm/stackframe.h>
#include <asm/isadep.h>
#include <asm/thread_info.h>
-#include <asm/war.h>
#ifndef CONFIG_PREEMPTION
#define resume_kernel restore_all
@@ -101,7 +100,7 @@ restore_partial: # restore partial frame
SAVE_AT
SAVE_TEMP
LONG_L v0, PT_STATUS(sp)
-#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
+#if defined(CONFIG_CPU_R3000)
and v0, ST0_IEP
#else
and v0, ST0_IE
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index 743d75927b71..3425df6019c0 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -19,7 +19,6 @@
#include <asm/mipsregs.h>
#include <asm/stackframe.h>
#include <asm/sync.h>
-#include <asm/war.h>
#include <asm/thread_info.h>
__INIT
@@ -163,7 +162,7 @@ NESTED(handle_int, PT_SIZE, sp)
.set push
.set noat
mfc0 k0, CP0_STATUS
-#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
+#if defined(CONFIG_CPU_R3000)
and k0, ST0_IEP
bnez k0, 1f
@@ -645,7 +644,7 @@ isrdhwr:
get_saved_sp /* k1 := current_thread_info */
.set noreorder
MFC0 k0, CP0_EPC
-#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
+#if defined(CONFIG_CPU_R3000)
ori k1, _THREAD_MASK
xori k1, _THREAD_MASK
LONG_L v1, TI_TP_VALUE(k1)
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c
index c81b3a039470..146d9fa77f75 100644
--- a/arch/mips/kernel/idle.c
+++ b/arch/mips/kernel/idle.c
@@ -36,13 +36,6 @@ static void __cpuidle r3081_wait(void)
raw_local_irq_enable();
}
-static void __cpuidle r39xx_wait(void)
-{
- if (!need_resched())
- write_c0_conf(read_c0_conf() | TX39_CONF_HALT);
- raw_local_irq_enable();
-}
-
void __cpuidle r4k_wait(void)
{
raw_local_irq_enable();
@@ -147,9 +140,6 @@ void __init check_wait(void)
case CPU_R3081E:
cpu_wait = r3081_wait;
break;
- case CPU_TX3927:
- cpu_wait = r39xx_wait;
- break;
case CPU_R4200:
/* case CPU_R4300: */
case CPU_R4600:
diff --git a/arch/mips/kernel/irq_txx9.c b/arch/mips/kernel/irq_txx9.c
index ab00e490482f..af3ef4c9f7de 100644
--- a/arch/mips/kernel/irq_txx9.c
+++ b/arch/mips/kernel/irq_txx9.c
@@ -72,11 +72,6 @@ static void txx9_irq_unmask(struct irq_data *d)
__raw_writel((__raw_readl(ilrp) & ~(0xff << ofs))
| (txx9irq[irq_nr].level << ofs),
ilrp);
-#ifdef CONFIG_CPU_TX39XX
- /* update IRCSR */
- __raw_writel(0, &txx9_ircptr->imr);
- __raw_writel(irc_elevel, &txx9_ircptr->imr);
-#endif
}
static inline void txx9_irq_mask(struct irq_data *d)
@@ -88,15 +83,7 @@ static inline void txx9_irq_mask(struct irq_data *d)
__raw_writel((__raw_readl(ilrp) & ~(0xff << ofs))
| (irc_dlevel << ofs),
ilrp);
-#ifdef CONFIG_CPU_TX39XX
- /* update IRCSR */
- __raw_writel(0, &txx9_ircptr->imr);
- __raw_writel(irc_elevel, &txx9_ircptr->imr);
- /* flush write buffer */
- __raw_readl(&txx9_ircptr->ssr);
-#else
mmiowb();
-#endif
}
static void txx9_irq_mask_ack(struct irq_data *d)
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 9f47a889b047..bb43bf850314 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -181,8 +181,6 @@ static int show_cpuinfo(struct seq_file *m, void *v)
seq_puts(m, " 3k_cache");
if (cpu_has_4k_cache)
seq_puts(m, " 4k_cache");
- if (cpu_has_tx39_cache)
- seq_puts(m, " tx39_cache");
if (cpu_has_octeon_cache)
seq_puts(m, " octeon_cache");
if (raw_cpu_has_fpu)
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index cbff1b974f88..c2d5f4bfe1f3 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -128,7 +128,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
p->thread.reg17 = kthread_arg;
p->thread.reg29 = childksp;
p->thread.reg31 = (unsigned long) ret_from_kernel_thread;
-#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
+#if defined(CONFIG_CPU_R3000)
status = (status & ~(ST0_KUP | ST0_IEP | ST0_IEC)) |
((status & (ST0_KUC | ST0_IEC)) << 2);
#else
diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c
index 6abebd57b218..7db6ff9aed7d 100644
--- a/arch/mips/kernel/prom.c
+++ b/arch/mips/kernel/prom.c
@@ -64,4 +64,9 @@ int __init __dt_register_buses(const char *bus0, const char *bus1)
return 0;
}
+void __weak __init device_tree_init(void)
+{
+ unflatten_and_copy_device_tree();
+}
+
#endif
diff --git a/arch/mips/kernel/r4k-bugs64.c b/arch/mips/kernel/r4k-bugs64.c
index 35729c9e6cfa..6ffefb2c6971 100644
--- a/arch/mips/kernel/r4k-bugs64.c
+++ b/arch/mips/kernel/r4k-bugs64.c
@@ -163,7 +163,8 @@ static __always_inline __init void check_mult_sh(void)
}
pr_cont("no.\n");
- panic(bug64hit, !R4000_WAR ? r4kwar : nowar);
+ panic(bug64hit,
+ IS_ENABLED(CONFIG_CPU_R4000_WORKAROUNDS) ? nowar : r4kwar);
}
static volatile int daddi_ov;
@@ -239,7 +240,8 @@ static __init void check_daddi(void)
}
pr_cont("no.\n");
- panic(bug64hit, !DADDI_WAR ? daddiwar : nowar);
+ panic(bug64hit,
+ IS_ENABLED(CONFIG_CPU_DADDI_WORKAROUNDS) ? nowar : daddiwar);
}
int daddiu_bug = -1;
@@ -307,7 +309,8 @@ static __init void check_daddiu(void)
}
pr_cont("no.\n");
- panic(bug64hit, !DADDI_WAR ? daddiwar : nowar);
+ panic(bug64hit,
+ IS_ENABLED(CONFIG_CPU_DADDI_WORKAROUNDS) ? nowar : daddiwar);
}
void __init check_bugs64_early(void)
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 9bfce5f75f60..18dc9b345056 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -19,7 +19,6 @@
#include <asm/sysmips.h>
#include <asm/thread_info.h>
#include <asm/unistd.h>
-#include <asm/war.h>
#include <asm/asm-offsets.h>
.align 5
diff --git a/arch/mips/kernel/scall64-n64.S b/arch/mips/kernel/scall64-n64.S
index 5f6ed4b4c399..e6264aa62e45 100644
--- a/arch/mips/kernel/scall64-n64.S
+++ b/arch/mips/kernel/scall64-n64.S
@@ -18,7 +18,6 @@
#include <asm/sysmips.h>
#include <asm/thread_info.h>
#include <asm/unistd.h>
-#include <asm/war.h>
#ifndef CONFIG_MIPS32_COMPAT
/* Neither O32 nor N32, so define handle_sys here */
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index 5bce782e694c..71e309be86a2 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -35,7 +35,6 @@
#include <asm/sim.h>
#include <asm/ucontext.h>
#include <asm/cpu-features.h>
-#include <asm/war.h>
#include <asm/dsp.h>
#include <asm/inst.h>
#include <asm/msa.h>
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index 7bd00fad61af..cfc77b69420a 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -24,7 +24,6 @@
#include <asm/ucontext.h>
#include <asm/fpu.h>
#include <asm/cpu-features.h>
-#include <asm/war.h>
#include "signal-common.h"
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index a486486b2355..246c6a6b0261 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -2091,19 +2091,19 @@ static void *set_vi_srs_handler(int n, vi_handler_t addr, int srs)
* If no shadow set is selected then use the default handler
* that does normal register saving and standard interrupt exit
*/
- extern char except_vec_vi, except_vec_vi_lui;
- extern char except_vec_vi_ori, except_vec_vi_end;
- extern char rollback_except_vec_vi;
- char *vec_start = using_rollback_handler() ?
- &rollback_except_vec_vi : &except_vec_vi;
+ extern const u8 except_vec_vi[], except_vec_vi_lui[];
+ extern const u8 except_vec_vi_ori[], except_vec_vi_end[];
+ extern const u8 rollback_except_vec_vi[];
+ const u8 *vec_start = using_rollback_handler() ?
+ rollback_except_vec_vi : except_vec_vi;
#if defined(CONFIG_CPU_MICROMIPS) || defined(CONFIG_CPU_BIG_ENDIAN)
- const int lui_offset = &except_vec_vi_lui - vec_start + 2;
- const int ori_offset = &except_vec_vi_ori - vec_start + 2;
+ const int lui_offset = except_vec_vi_lui - vec_start + 2;
+ const int ori_offset = except_vec_vi_ori - vec_start + 2;
#else
- const int lui_offset = &except_vec_vi_lui - vec_start;
- const int ori_offset = &except_vec_vi_ori - vec_start;
+ const int lui_offset = except_vec_vi_lui - vec_start;
+ const int ori_offset = except_vec_vi_ori - vec_start;
#endif
- const int handler_len = &except_vec_vi_end - vec_start;
+ const int handler_len = except_vec_vi_end - vec_start;
if (handler_len > VECTORSPACING) {
/*
@@ -2311,7 +2311,7 @@ void per_cpu_trap_init(bool is_boot_cpu)
}
/* Install CPU exception handler */
-void set_handler(unsigned long offset, void *addr, unsigned long size)
+void set_handler(unsigned long offset, const void *addr, unsigned long size)
{
#ifdef CONFIG_CPU_MICROMIPS
memcpy((void *)(ebase + offset), ((unsigned char *)addr - 1), size);
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-24 07:47:05 +0100