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-rw-r--r--arch/powerpc/kernel/align.c63
-rw-r--r--arch/powerpc/kernel/cputable.c6
-rw-r--r--arch/powerpc/kernel/head_32.S25
-rw-r--r--arch/powerpc/kernel/iommu.c4
-rw-r--r--arch/powerpc/kernel/irq.c8
-rw-r--r--arch/powerpc/kernel/perf_callchain.c4
-rw-r--r--arch/powerpc/kernel/rtas.c16
-rw-r--r--arch/powerpc/kernel/setup-common.c4
-rw-r--r--arch/powerpc/kernel/smp.c2
-rw-r--r--arch/powerpc/kernel/traps.c9
-rw-r--r--arch/powerpc/kernel/udbg.c2
-rw-r--r--arch/powerpc/kernel/vmlinux.lds.S3
12 files changed, 107 insertions, 39 deletions
diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index 3839839f83c7..b876e989220b 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -642,10 +642,14 @@ static int emulate_spe(struct pt_regs *regs, unsigned int reg,
*/
static int emulate_vsx(unsigned char __user *addr, unsigned int reg,
unsigned int areg, struct pt_regs *regs,
- unsigned int flags, unsigned int length)
+ unsigned int flags, unsigned int length,
+ unsigned int elsize)
{
char *ptr;
+ unsigned long *lptr;
int ret = 0;
+ int sw = 0;
+ int i, j;
flush_vsx_to_thread(current);
@@ -654,19 +658,35 @@ static int emulate_vsx(unsigned char __user *addr, unsigned int reg,
else
ptr = (char *) &current->thread.vr[reg - 32];
- if (flags & ST)
- ret = __copy_to_user(addr, ptr, length);
- else {
- if (flags & SPLT){
- ret = __copy_from_user(ptr, addr, length);
- ptr += length;
+ lptr = (unsigned long *) ptr;
+
+ if (flags & SW)
+ sw = elsize-1;
+
+ for (j = 0; j < length; j += elsize) {
+ for (i = 0; i < elsize; ++i) {
+ if (flags & ST)
+ ret |= __put_user(ptr[i^sw], addr + i);
+ else
+ ret |= __get_user(ptr[i^sw], addr + i);
}
- ret |= __copy_from_user(ptr, addr, length);
+ ptr += elsize;
+ addr += elsize;
}
- if (flags & U)
- regs->gpr[areg] = regs->dar;
- if (ret)
+
+ if (!ret) {
+ if (flags & U)
+ regs->gpr[areg] = regs->dar;
+
+ /* Splat load copies the same data to top and bottom 8 bytes */
+ if (flags & SPLT)
+ lptr[1] = lptr[0];
+ /* For 8 byte loads, zero the top 8 bytes */
+ else if (!(flags & ST) && (8 == length))
+ lptr[1] = 0;
+ } else
return -EFAULT;
+
return 1;
}
#endif
@@ -767,16 +787,25 @@ int fix_alignment(struct pt_regs *regs)
#ifdef CONFIG_VSX
if ((instruction & 0xfc00003e) == 0x7c000018) {
- /* Additional register addressing bit (64 VSX vs 32 FPR/GPR */
+ unsigned int elsize;
+
+ /* Additional register addressing bit (64 VSX vs 32 FPR/GPR) */
reg |= (instruction & 0x1) << 5;
/* Simple inline decoder instead of a table */
+ /* VSX has only 8 and 16 byte memory accesses */
+ nb = 8;
if (instruction & 0x200)
nb = 16;
- else if (instruction & 0x080)
- nb = 8;
- else
- nb = 4;
+
+ /* Vector stores in little-endian mode swap individual
+ elements, so process them separately */
+ elsize = 4;
+ if (instruction & 0x80)
+ elsize = 8;
+
flags = 0;
+ if (regs->msr & MSR_LE)
+ flags |= SW;
if (instruction & 0x100)
flags |= ST;
if (instruction & 0x040)
@@ -787,7 +816,7 @@ int fix_alignment(struct pt_regs *regs)
nb = 8;
}
PPC_WARN_ALIGNMENT(vsx, regs);
- return emulate_vsx(addr, reg, areg, regs, flags, nb);
+ return emulate_vsx(addr, reg, areg, regs, flags, nb, elsize);
}
#endif
/* A size of 0 indicates an instruction we don't support, with
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 03c862b6a9c4..2fc82bac3bbc 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -697,9 +697,9 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check = machine_check_generic,
.platform = "ppc750",
},
- { /* 750CL */
- .pvr_mask = 0xfffff0f0,
- .pvr_value = 0x00087010,
+ { /* 750CL (and "Broadway") */
+ .pvr_mask = 0xfffff0e0,
+ .pvr_value = 0x00087000,
.cpu_name = "750CL",
.cpu_features = CPU_FTRS_750CL,
.cpu_user_features = COMMON_USER | PPC_FEATURE_PPC_LE,
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index 829c3fe7c5a2..e025e89fe93e 100644
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -164,6 +164,9 @@ __after_mmu_off:
#ifdef CONFIG_PPC_EARLY_DEBUG_CPM
bl setup_cpm_bat
#endif
+#ifdef CONFIG_PPC_EARLY_DEBUG_USBGECKO
+ bl setup_usbgecko_bat
+#endif
/*
* Call setup_cpu for CPU 0 and initialize 6xx Idle
@@ -1203,6 +1206,28 @@ setup_cpm_bat:
blr
#endif
+#ifdef CONFIG_PPC_EARLY_DEBUG_USBGECKO
+setup_usbgecko_bat:
+ /* prepare a BAT for early io */
+#if defined(CONFIG_GAMECUBE)
+ lis r8, 0x0c00
+#elif defined(CONFIG_WII)
+ lis r8, 0x0d00
+#else
+#error Invalid platform for USB Gecko based early debugging.
+#endif
+ /*
+ * The virtual address used must match the virtual address
+ * associated to the fixmap entry FIX_EARLY_DEBUG_BASE.
+ */
+ lis r11, 0xfffe /* top 128K */
+ ori r8, r8, 0x002a /* uncached, guarded ,rw */
+ ori r11, r11, 0x2 /* 128K, Vs=1, Vp=0 */
+ mtspr SPRN_DBAT1L, r8
+ mtspr SPRN_DBAT1U, r11
+ blr
+#endif
+
#ifdef CONFIG_8260
/* Jump into the system reset for the rom.
* We first disable the MMU, and then jump to the ROM reset address.
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index fd51578e29dd..5547ae6e6b0b 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -30,7 +30,7 @@
#include <linux/spinlock.h>
#include <linux/string.h>
#include <linux/dma-mapping.h>
-#include <linux/bitops.h>
+#include <linux/bitmap.h>
#include <linux/iommu-helper.h>
#include <linux/crash_dump.h>
#include <asm/io.h>
@@ -251,7 +251,7 @@ static void __iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr,
}
ppc_md.tce_free(tbl, entry, npages);
- iommu_area_free(tbl->it_map, free_entry, npages);
+ bitmap_clear(tbl->it_map, free_entry, npages);
}
static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr,
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index f6dca4f4b295..9040330b0530 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -210,7 +210,7 @@ int show_interrupts(struct seq_file *p, void *v)
if (!desc)
return 0;
- spin_lock_irqsave(&desc->lock, flags);
+ raw_spin_lock_irqsave(&desc->lock, flags);
action = desc->action;
if (!action || !action->handler)
@@ -237,7 +237,7 @@ int show_interrupts(struct seq_file *p, void *v)
seq_putc(p, '\n');
skip:
- spin_unlock_irqrestore(&desc->lock, flags);
+ raw_spin_unlock_irqrestore(&desc->lock, flags);
return 0;
}
@@ -1112,7 +1112,7 @@ static int virq_debug_show(struct seq_file *m, void *private)
if (!desc)
continue;
- spin_lock_irqsave(&desc->lock, flags);
+ raw_spin_lock_irqsave(&desc->lock, flags);
if (desc->action && desc->action->handler) {
seq_printf(m, "%5d ", i);
@@ -1131,7 +1131,7 @@ static int virq_debug_show(struct seq_file *m, void *private)
seq_printf(m, "%s\n", p);
}
- spin_unlock_irqrestore(&desc->lock, flags);
+ raw_spin_unlock_irqrestore(&desc->lock, flags);
}
return 0;
diff --git a/arch/powerpc/kernel/perf_callchain.c b/arch/powerpc/kernel/perf_callchain.c
index 936f04dbfc6f..a3c11cac3d71 100644
--- a/arch/powerpc/kernel/perf_callchain.c
+++ b/arch/powerpc/kernel/perf_callchain.c
@@ -487,11 +487,11 @@ static void perf_callchain_user_32(struct pt_regs *regs,
* Since we can't get PMU interrupts inside a PMU interrupt handler,
* we don't need separate irq and nmi entries here.
*/
-static DEFINE_PER_CPU(struct perf_callchain_entry, callchain);
+static DEFINE_PER_CPU(struct perf_callchain_entry, cpu_perf_callchain);
struct perf_callchain_entry *perf_callchain(struct pt_regs *regs)
{
- struct perf_callchain_entry *entry = &__get_cpu_var(callchain);
+ struct perf_callchain_entry *entry = &__get_cpu_var(cpu_perf_callchain);
entry->nr = 0;
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index bf90361bb70f..fd0d29493fd6 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -42,7 +42,7 @@
#include <asm/mmu.h>
struct rtas_t rtas = {
- .lock = __RAW_SPIN_LOCK_UNLOCKED
+ .lock = __ARCH_SPIN_LOCK_UNLOCKED
};
EXPORT_SYMBOL(rtas);
@@ -80,13 +80,13 @@ static unsigned long lock_rtas(void)
local_irq_save(flags);
preempt_disable();
- __raw_spin_lock_flags(&rtas.lock, flags);
+ arch_spin_lock_flags(&rtas.lock, flags);
return flags;
}
static void unlock_rtas(unsigned long flags)
{
- __raw_spin_unlock(&rtas.lock);
+ arch_spin_unlock(&rtas.lock);
local_irq_restore(flags);
preempt_enable();
}
@@ -978,7 +978,7 @@ int __init early_init_dt_scan_rtas(unsigned long node,
return 1;
}
-static raw_spinlock_t timebase_lock;
+static arch_spinlock_t timebase_lock;
static u64 timebase = 0;
void __cpuinit rtas_give_timebase(void)
@@ -987,10 +987,10 @@ void __cpuinit rtas_give_timebase(void)
local_irq_save(flags);
hard_irq_disable();
- __raw_spin_lock(&timebase_lock);
+ arch_spin_lock(&timebase_lock);
rtas_call(rtas_token("freeze-time-base"), 0, 1, NULL);
timebase = get_tb();
- __raw_spin_unlock(&timebase_lock);
+ arch_spin_unlock(&timebase_lock);
while (timebase)
barrier();
@@ -1002,8 +1002,8 @@ void __cpuinit rtas_take_timebase(void)
{
while (!timebase)
barrier();
- __raw_spin_lock(&timebase_lock);
+ arch_spin_lock(&timebase_lock);
set_tb(timebase >> 32, timebase & 0xffffffff);
timebase = 0;
- __raw_spin_unlock(&timebase_lock);
+ arch_spin_unlock(&timebase_lock);
}
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 845c72ab7357..03dd6a248198 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -157,7 +157,7 @@ extern u32 cpu_temp_both(unsigned long cpu);
#endif /* CONFIG_TAU */
#ifdef CONFIG_SMP
-DEFINE_PER_CPU(unsigned int, pvr);
+DEFINE_PER_CPU(unsigned int, cpu_pvr);
#endif
static int show_cpuinfo(struct seq_file *m, void *v)
@@ -209,7 +209,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
}
#ifdef CONFIG_SMP
- pvr = per_cpu(pvr, cpu_id);
+ pvr = per_cpu(cpu_pvr, cpu_id);
#else
pvr = mfspr(SPRN_PVR);
#endif
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 97196eefef3e..a521fb8a40ee 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -235,7 +235,7 @@ struct thread_info *current_set[NR_CPUS];
static void __devinit smp_store_cpu_info(int id)
{
- per_cpu(pvr, id) = mfspr(SPRN_PVR);
+ per_cpu(cpu_pvr, id) = mfspr(SPRN_PVR);
}
static void __init smp_create_idle(unsigned int cpu)
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 804f0f30f227..d069ff8a7e03 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -174,6 +174,15 @@ int die(const char *str, struct pt_regs *regs, long err)
return 0;
}
+void user_single_step_siginfo(struct task_struct *tsk,
+ struct pt_regs *regs, siginfo_t *info)
+{
+ memset(info, 0, sizeof(*info));
+ info->si_signo = SIGTRAP;
+ info->si_code = TRAP_TRACE;
+ info->si_addr = (void __user *)regs->nip;
+}
+
void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
{
siginfo_t info;
diff --git a/arch/powerpc/kernel/udbg.c b/arch/powerpc/kernel/udbg.c
index fc9af47e2128..e39cad83c884 100644
--- a/arch/powerpc/kernel/udbg.c
+++ b/arch/powerpc/kernel/udbg.c
@@ -60,6 +60,8 @@ void __init udbg_early_init(void)
udbg_init_40x_realmode();
#elif defined(CONFIG_PPC_EARLY_DEBUG_CPM)
udbg_init_cpm();
+#elif defined(CONFIG_PPC_EARLY_DEBUG_USBGECKO)
+ udbg_init_usbgecko();
#endif
#ifdef CONFIG_PPC_EARLY_DEBUG
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 27735a7ac12b..dcd01c82e701 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -38,6 +38,9 @@ jiffies = jiffies_64 + 4;
#endif
SECTIONS
{
+ . = 0;
+ reloc_start = .;
+
. = KERNELBASE;
/*
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-02 03:36:29 +0100