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-rw-r--r--arch/sparc64/Kconfig43
-rw-r--r--arch/sparc64/kernel/dtlb_backend.S2
-rw-r--r--arch/sparc64/kernel/entry.S63
-rw-r--r--arch/sparc64/kernel/irq.c588
-rw-r--r--arch/sparc64/kernel/kprobes.c5
-rw-r--r--arch/sparc64/kernel/pci_psycho.c3
-rw-r--r--arch/sparc64/kernel/pci_sabre.c46
-rw-r--r--arch/sparc64/kernel/pci_schizo.c78
-rw-r--r--arch/sparc64/kernel/power.c3
-rw-r--r--arch/sparc64/kernel/ptrace.c46
-rw-r--r--arch/sparc64/kernel/smp.c10
-rw-r--r--arch/sparc64/kernel/sparc64_ksyms.c2
-rw-r--r--arch/sparc64/kernel/sys32.S2
-rw-r--r--arch/sparc64/kernel/systbls.S8
-rw-r--r--arch/sparc64/kernel/time.c26
-rw-r--r--arch/sparc64/kernel/vmlinux.lds.S2
-rw-r--r--arch/sparc64/mm/fault.c16
-rw-r--r--arch/sparc64/mm/ultra.S5
-rw-r--r--arch/sparc64/solaris/entry64.S7
19 files changed, 422 insertions, 533 deletions
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index e2b050eb3b9..9afd28e2c4d 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -43,6 +43,25 @@ config SPARC64_PAGE_SIZE_4MB
endchoice
+config SECCOMP
+ bool "Enable seccomp to safely compute untrusted bytecode"
+ depends on PROC_FS
+ default y
+ help
+ This kernel feature is useful for number crunching applications
+ that may need to compute untrusted bytecode during their
+ execution. By using pipes or other transports made available to
+ the process as file descriptors supporting the read/write
+ syscalls, it's possible to isolate those applications in
+ their own address space using seccomp. Once seccomp is
+ enabled via /proc/<pid>/seccomp, it cannot be disabled
+ and the task is only allowed to execute a few safe syscalls
+ defined by each seccomp mode.
+
+ If unsure, say Y. Only embedded should say N here.
+
+source kernel/Kconfig.hz
+
source "init/Kconfig"
config SYSVIPC_COMPAT
@@ -444,6 +463,24 @@ config PRINTER
If you have more than 8 printers, you need to increase the LP_NO
macro in lp.c and the PARPORT_MAX macro in parport.h.
+config PPDEV
+ tristate "Support for user-space parallel port device drivers"
+ depends on PARPORT
+ ---help---
+ Saying Y to this adds support for /dev/parport device nodes. This
+ is needed for programs that want portable access to the parallel
+ port, for instance deviceid (which displays Plug-and-Play device
+ IDs).
+
+ This is the parallel port equivalent of SCSI generic support (sg).
+ It is safe to say N to this -- it is not needed for normal printing
+ or parallel port CD-ROM/disk support.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ppdev.
+
+ If unsure, say N.
+
config ENVCTRL
tristate "SUNW, envctrl support"
depends on PCI
@@ -488,6 +525,8 @@ source "mm/Kconfig"
endmenu
+source "net/Kconfig"
+
source "drivers/base/Kconfig"
source "drivers/video/Kconfig"
@@ -514,7 +553,7 @@ endif
source "drivers/ieee1394/Kconfig"
-source "net/Kconfig"
+source "drivers/net/Kconfig"
source "drivers/isdn/Kconfig"
@@ -610,6 +649,8 @@ source "drivers/input/Kconfig"
source "drivers/i2c/Kconfig"
+source "drivers/hwmon/Kconfig"
+
source "fs/Kconfig"
source "drivers/media/Kconfig"
diff --git a/arch/sparc64/kernel/dtlb_backend.S b/arch/sparc64/kernel/dtlb_backend.S
index b73a3c85877..538522848ad 100644
--- a/arch/sparc64/kernel/dtlb_backend.S
+++ b/arch/sparc64/kernel/dtlb_backend.S
@@ -16,7 +16,7 @@
#elif PAGE_SHIFT == 19
#define SZ_BITS _PAGE_SZ512K
#elif PAGE_SHIFT == 22
-#define SZ_BITS _PAGE_SZ4M
+#define SZ_BITS _PAGE_SZ4MB
#endif
#define VALID_SZ_BITS (_PAGE_VALID | SZ_BITS)
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index eee516a71c1..d781f10adc5 100644
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -22,8 +22,6 @@
#include <asm/estate.h>
#include <asm/auxio.h>
-/* #define SYSCALL_TRACING 1 */
-
#define curptr g6
#define NR_SYSCALLS 284 /* Each OS is different... */
@@ -553,13 +551,11 @@ do_ivec:
sllx %g3, 5, %g3
or %g2, %lo(ivector_table), %g2
add %g2, %g3, %g3
- ldx [%g3 + 0x08], %g2 /* irq_info */
ldub [%g3 + 0x04], %g4 /* pil */
- brz,pn %g2, do_ivec_spurious
- mov 1, %g2
-
+ mov 1, %g2
sllx %g2, %g4, %g2
sllx %g4, 2, %g4
+
lduw [%g6 + %g4], %g5 /* g5 = irq_work(cpu, pil) */
stw %g5, [%g3 + 0x00] /* bucket->irq_chain = g5 */
stw %g3, [%g6 + %g4] /* irq_work(cpu, pil) = bucket */
@@ -567,9 +563,9 @@ do_ivec:
retry
do_ivec_xcall:
mov 0x50, %g1
-
ldxa [%g1 + %g0] ASI_INTR_R, %g1
srl %g3, 0, %g3
+
mov 0x60, %g7
ldxa [%g7 + %g0] ASI_INTR_R, %g7
stxa %g0, [%g0] ASI_INTR_RECEIVE
@@ -581,19 +577,6 @@ do_ivec_xcall:
1: jmpl %g3, %g0
nop
-do_ivec_spurious:
- stw %g3, [%g6 + 0x00] /* irq_work(cpu, 0) = bucket */
- rdpr %pstate, %g5
-
- wrpr %g5, PSTATE_IG | PSTATE_AG, %pstate
- sethi %hi(109f), %g7
- ba,pt %xcc, etrap
-109: or %g7, %lo(109b), %g7
- call catch_disabled_ivec
- add %sp, PTREGS_OFF, %o0
- ba,pt %xcc, rtrap
- clr %l6
-
.globl save_alternate_globals
save_alternate_globals: /* %o0 = save_area */
rdpr %pstate, %o5
@@ -1569,11 +1552,12 @@ sys_ptrace: add %sp, PTREGS_OFF, %o0
nop
.align 32
1: ldx [%curptr + TI_FLAGS], %l5
- andcc %l5, _TIF_SYSCALL_TRACE, %g0
+ andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0
be,pt %icc, rtrap
clr %l6
+ add %sp, PTREGS_OFF, %o0
call syscall_trace
- nop
+ mov 1, %o1
ba,pt %xcc, rtrap
clr %l6
@@ -1657,18 +1641,20 @@ linux_sparc_ni_syscall:
or %l7, %lo(sys_ni_syscall), %l7
linux_syscall_trace32:
+ add %sp, PTREGS_OFF, %o0
call syscall_trace
- nop
+ clr %o1
srl %i0, 0, %o0
- mov %i4, %o4
+ srl %i4, 0, %o4
srl %i1, 0, %o1
srl %i2, 0, %o2
b,pt %xcc, 2f
srl %i3, 0, %o3
linux_syscall_trace:
+ add %sp, PTREGS_OFF, %o0
call syscall_trace
- nop
+ clr %o1
mov %i0, %o0
mov %i1, %o1
mov %i2, %o2
@@ -1686,11 +1672,6 @@ linux_sparc_syscall32:
bgeu,pn %xcc, linux_sparc_ni_syscall ! CTI
srl %i0, 0, %o0 ! IEU0
sll %g1, 2, %l4 ! IEU0 Group
-#ifdef SYSCALL_TRACING
- call syscall_trace_entry
- add %sp, PTREGS_OFF, %o0
- srl %i0, 0, %o0
-#endif
srl %i4, 0, %o4 ! IEU1
lduw [%l7 + %l4], %l7 ! Load
srl %i1, 0, %o1 ! IEU0 Group
@@ -1698,7 +1679,7 @@ linux_sparc_syscall32:
srl %i5, 0, %o5 ! IEU1
srl %i2, 0, %o2 ! IEU0 Group
- andcc %l0, _TIF_SYSCALL_TRACE, %g0 ! IEU0 Group
+ andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0
bne,pn %icc, linux_syscall_trace32 ! CTI
mov %i0, %l5 ! IEU1
call %l7 ! CTI Group brk forced
@@ -1714,11 +1695,6 @@ linux_sparc_syscall:
bgeu,pn %xcc, linux_sparc_ni_syscall ! CTI
mov %i0, %o0 ! IEU0
sll %g1, 2, %l4 ! IEU0 Group
-#ifdef SYSCALL_TRACING
- call syscall_trace_entry
- add %sp, PTREGS_OFF, %o0
- mov %i0, %o0
-#endif
mov %i1, %o1 ! IEU1
lduw [%l7 + %l4], %l7 ! Load
4: mov %i2, %o2 ! IEU0 Group
@@ -1726,7 +1702,7 @@ linux_sparc_syscall:
mov %i3, %o3 ! IEU1
mov %i4, %o4 ! IEU0 Group
- andcc %l0, _TIF_SYSCALL_TRACE, %g0 ! IEU1 Group+1 bubble
+ andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0
bne,pn %icc, linux_syscall_trace ! CTI Group
mov %i0, %l5 ! IEU0
2: call %l7 ! CTI Group brk forced
@@ -1735,12 +1711,6 @@ linux_sparc_syscall:
3: stx %o0, [%sp + PTREGS_OFF + PT_V9_I0]
ret_sys_call:
-#ifdef SYSCALL_TRACING
- mov %o0, %o1
- call syscall_trace_exit
- add %sp, PTREGS_OFF, %o0
- mov %o1, %o0
-#endif
ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %g3
ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc
sra %o0, 0, %o0
@@ -1760,7 +1730,7 @@ ret_sys_call:
1:
cmp %o0, -ERESTART_RESTARTBLOCK
bgeu,pn %xcc, 1f
- andcc %l0, _TIF_SYSCALL_TRACE, %l6
+ andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %l6
80:
/* System call success, clear Carry condition code. */
andn %g3, %g2, %g3
@@ -1775,7 +1745,7 @@ ret_sys_call:
/* System call failure, set Carry condition code.
* Also, get abs(errno) to return to the process.
*/
- andcc %l0, _TIF_SYSCALL_TRACE, %l6
+ andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %l6
sub %g0, %o0, %o0
or %g3, %g2, %g3
stx %o0, [%sp + PTREGS_OFF + PT_V9_I0]
@@ -1788,8 +1758,9 @@ ret_sys_call:
b,pt %xcc, rtrap
stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC]
linux_syscall_trace2:
+ add %sp, PTREGS_OFF, %o0
call syscall_trace
- nop
+ mov 1, %o1
stx %l1, [%sp + PTREGS_OFF + PT_V9_TPC]
ba,pt %xcc, rtrap
stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC]
diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index 42471257730..daa2fb93052 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -71,31 +71,7 @@ struct irq_work_struct {
struct irq_work_struct __irq_work[NR_CPUS];
#define irq_work(__cpu, __pil) &(__irq_work[(__cpu)].irq_worklists[(__pil)])
-#ifdef CONFIG_PCI
-/* This is a table of physical addresses used to deal with IBF_DMA_SYNC.
- * It is used for PCI only to synchronize DMA transfers with IRQ delivery
- * for devices behind busses other than APB on Sabre systems.
- *
- * Currently these physical addresses are just config space accesses
- * to the command register for that device.
- */
-unsigned long pci_dma_wsync;
-unsigned long dma_sync_reg_table[256];
-unsigned char dma_sync_reg_table_entry = 0;
-#endif
-
-/* This is based upon code in the 32-bit Sparc kernel written mostly by
- * David Redman (djhr@tadpole.co.uk).
- */
-#define MAX_STATIC_ALLOC 4
-static struct irqaction static_irqaction[MAX_STATIC_ALLOC];
-static int static_irq_count;
-
-/* This is exported so that fast IRQ handlers can get at it... -DaveM */
-struct irqaction *irq_action[NR_IRQS+1] = {
- NULL, NULL, NULL, NULL, NULL, NULL , NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL , NULL, NULL
-};
+static struct irqaction *irq_action[NR_IRQS+1];
/* This only synchronizes entities which modify IRQ handler
* state and some selected user-level spots that want to
@@ -241,17 +217,22 @@ void disable_irq(unsigned int irq)
* the CPU %tick register and not by some normal vectored interrupt
* source. To handle this special case, we use this dummy INO bucket.
*/
+static struct irq_desc pil0_dummy_desc;
static struct ino_bucket pil0_dummy_bucket = {
- 0, /* irq_chain */
- 0, /* pil */
- 0, /* pending */
- 0, /* flags */
- 0, /* __unused */
- NULL, /* irq_info */
- 0UL, /* iclr */
- 0UL, /* imap */
+ .irq_info = &pil0_dummy_desc,
};
+static void build_irq_error(const char *msg, unsigned int ino, int pil, int inofixup,
+ unsigned long iclr, unsigned long imap,
+ struct ino_bucket *bucket)
+{
+ prom_printf("IRQ: INO %04x (%d:%016lx:%016lx) --> "
+ "(%d:%d:%016lx:%016lx), halting...\n",
+ ino, bucket->pil, bucket->iclr, bucket->imap,
+ pil, inofixup, iclr, imap);
+ prom_halt();
+}
+
unsigned int build_irq(int pil, int inofixup, unsigned long iclr, unsigned long imap)
{
struct ino_bucket *bucket;
@@ -280,28 +261,35 @@ unsigned int build_irq(int pil, int inofixup, unsigned long iclr, unsigned long
prom_halt();
}
- /* Ok, looks good, set it up. Don't touch the irq_chain or
- * the pending flag.
- */
bucket = &ivector_table[ino];
- if ((bucket->flags & IBF_ACTIVE) ||
- (bucket->irq_info != NULL)) {
- /* This is a gross fatal error if it happens here. */
- prom_printf("IRQ: Trying to reinit INO bucket, fatal error.\n");
- prom_printf("IRQ: Request INO %04x (%d:%d:%016lx:%016lx)\n",
- ino, pil, inofixup, iclr, imap);
- prom_printf("IRQ: Existing (%d:%016lx:%016lx)\n",
- bucket->pil, bucket->iclr, bucket->imap);
- prom_printf("IRQ: Cannot continue, halting...\n");
+ if (bucket->flags & IBF_ACTIVE)
+ build_irq_error("IRQ: Trying to build active INO bucket.\n",
+ ino, pil, inofixup, iclr, imap, bucket);
+
+ if (bucket->irq_info) {
+ if (bucket->imap != imap || bucket->iclr != iclr)
+ build_irq_error("IRQ: Trying to reinit INO bucket.\n",
+ ino, pil, inofixup, iclr, imap, bucket);
+
+ goto out;
+ }
+
+ bucket->irq_info = kmalloc(sizeof(struct irq_desc), GFP_ATOMIC);
+ if (!bucket->irq_info) {
+ prom_printf("IRQ: Error, kmalloc(irq_desc) failed.\n");
prom_halt();
}
+ memset(bucket->irq_info, 0, sizeof(struct irq_desc));
+
+ /* Ok, looks good, set it up. Don't touch the irq_chain or
+ * the pending flag.
+ */
bucket->imap = imap;
bucket->iclr = iclr;
bucket->pil = pil;
bucket->flags = 0;
- bucket->irq_info = NULL;
-
+out:
return __irq(bucket);
}
@@ -319,26 +307,65 @@ static void atomic_bucket_insert(struct ino_bucket *bucket)
__asm__ __volatile__("wrpr %0, 0x0, %%pstate" : : "r" (pstate));
}
+static int check_irq_sharing(int pil, unsigned long irqflags)
+{
+ struct irqaction *action, *tmp;
+
+ action = *(irq_action + pil);
+ if (action) {
+ if ((action->flags & SA_SHIRQ) && (irqflags & SA_SHIRQ)) {
+ for (tmp = action; tmp->next; tmp = tmp->next)
+ ;
+ } else {
+ return -EBUSY;
+ }
+ }
+ return 0;
+}
+
+static void append_irq_action(int pil, struct irqaction *action)
+{
+ struct irqaction **pp = irq_action + pil;
+
+ while (*pp)
+ pp = &((*pp)->next);
+ *pp = action;
+}
+
+static struct irqaction *get_action_slot(struct ino_bucket *bucket)
+{
+ struct irq_desc *desc = bucket->irq_info;
+ int max_irq, i;
+
+ max_irq = 1;
+ if (bucket->flags & IBF_PCI)
+ max_irq = MAX_IRQ_DESC_ACTION;
+ for (i = 0; i < max_irq; i++) {
+ struct irqaction *p = &desc->action[i];
+ u32 mask = (1 << i);
+
+ if (desc->action_active_mask & mask)
+ continue;
+
+ desc->action_active_mask |= mask;
+ return p;
+ }
+ return NULL;
+}
+
int request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *),
unsigned long irqflags, const char *name, void *dev_id)
{
- struct irqaction *action, *tmp = NULL;
+ struct irqaction *action;
struct ino_bucket *bucket = __bucket(irq);
unsigned long flags;
int pending = 0;
- if ((bucket != &pil0_dummy_bucket) &&
- (bucket < &ivector_table[0] ||
- bucket >= &ivector_table[NUM_IVECS])) {
- unsigned int *caller;
-
- __asm__ __volatile__("mov %%i7, %0" : "=r" (caller));
- printk(KERN_CRIT "request_irq: Old style IRQ registry attempt "
- "from %p, irq %08x.\n", caller, irq);
+ if (unlikely(!handler))
return -EINVAL;
- }
- if (!handler)
- return -EINVAL;
+
+ if (unlikely(!bucket->irq_info))
+ return -ENODEV;
if ((bucket != &pil0_dummy_bucket) && (irqflags & SA_SAMPLE_RANDOM)) {
/*
@@ -356,93 +383,20 @@ int request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_
spin_lock_irqsave(&irq_action_lock, flags);
- action = *(bucket->pil + irq_action);
- if (action) {
- if ((action->flags & SA_SHIRQ) && (irqflags & SA_SHIRQ))
- for (tmp = action; tmp->next; tmp = tmp->next)
- ;
- else {
- spin_unlock_irqrestore(&irq_action_lock, flags);
- return -EBUSY;
- }
- action = NULL; /* Or else! */
+ if (check_irq_sharing(bucket->pil, irqflags)) {
+ spin_unlock_irqrestore(&irq_action_lock, flags);
+ return -EBUSY;
}
- /* If this is flagged as statically allocated then we use our
- * private struct which is never freed.
- */
- if (irqflags & SA_STATIC_ALLOC) {
- if (static_irq_count < MAX_STATIC_ALLOC)
- action = &static_irqaction[static_irq_count++];
- else
- printk("Request for IRQ%d (%s) SA_STATIC_ALLOC failed "
- "using kmalloc\n", irq, name);
- }
- if (action == NULL)
- action = (struct irqaction *)kmalloc(sizeof(struct irqaction),
- GFP_ATOMIC);
-
+ action = get_action_slot(bucket);
if (!action) {
spin_unlock_irqrestore(&irq_action_lock, flags);
return -ENOMEM;
}
- if (bucket == &pil0_dummy_bucket) {
- bucket->irq_info = action;
- bucket->flags |= IBF_ACTIVE;
- } else {
- if ((bucket->flags & IBF_ACTIVE) != 0) {
- void *orig = bucket->irq_info;
- void **vector = NULL;
-
- if ((bucket->flags & IBF_PCI) == 0) {
- printk("IRQ: Trying to share non-PCI bucket.\n");
- goto free_and_ebusy;
- }
- if ((bucket->flags & IBF_MULTI) == 0) {
- vector = kmalloc(sizeof(void *) * 4, GFP_ATOMIC);
- if (vector == NULL)
- goto free_and_enomem;
-
- /* We might have slept. */
- if ((bucket->flags & IBF_MULTI) != 0) {
- int ent;
-
- kfree(vector);
- vector = (void **)bucket->irq_info;
- for(ent = 0; ent < 4; ent++) {
- if (vector[ent] == NULL) {
- vector[ent] = action;
- break;
- }
- }
- if (ent == 4)
- goto free_and_ebusy;
- } else {
- vector[0] = orig;
- vector[1] = action;
- vector[2] = NULL;
- vector[3] = NULL;
- bucket->irq_info = vector;
- bucket->flags |= IBF_MULTI;
- }
- } else {
- int ent;
-
- vector = (void **)orig;
- for (ent = 0; ent < 4; ent++) {
- if (vector[ent] == NULL) {
- vector[ent] = action;
- break;
- }
- }
- if (ent == 4)
- goto free_and_ebusy;
- }
- } else {
- bucket->irq_info = action;
- bucket->flags |= IBF_ACTIVE;
- }
+ bucket->flags |= IBF_ACTIVE;
+ pending = 0;
+ if (bucket != &pil0_dummy_bucket) {
pending = bucket->pending;
if (pending)
bucket->pending = 0;
@@ -456,10 +410,7 @@ int request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_
put_ino_in_irqaction(action, irq);
put_smpaff_in_irqaction(action, CPU_MASK_NONE);
- if (tmp)
- tmp->next = action;
- else
- *(bucket->pil + irq_action) = action;
+ append_irq_action(bucket->pil, action);
enable_irq(irq);
@@ -468,147 +419,103 @@ int request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_
atomic_bucket_insert(bucket);
set_softint(1 << bucket->pil);
}
+
spin_unlock_irqrestore(&irq_action_lock, flags);
- if ((bucket != &pil0_dummy_bucket) && (!(irqflags & SA_STATIC_ALLOC)))
+
+ if (bucket != &pil0_dummy_bucket)
register_irq_proc(__irq_ino(irq));
#ifdef CONFIG_SMP
distribute_irqs();
#endif
return 0;
-
-free_and_ebusy:
- kfree(action);
- spin_unlock_irqrestore(&irq_action_lock, flags);
- return -EBUSY;
-
-free_and_enomem:
- kfree(action);
- spin_unlock_irqrestore(&irq_action_lock, flags);
- return -ENOMEM;
}
EXPORT_SYMBOL(request_irq);
-void free_irq(unsigned int irq, void *dev_id)
+static struct irqaction *unlink_irq_action(unsigned int irq, void *dev_id)
{
- struct irqaction *action;
- struct irqaction *tmp = NULL;
- unsigned long flags;
- struct ino_bucket *bucket = __bucket(irq), *bp;
+ struct ino_bucket *bucket = __bucket(irq);
+ struct irqaction *action, **pp;
- if ((bucket != &pil0_dummy_bucket) &&
- (bucket < &ivector_table[0] ||
- bucket >= &ivector_table[NUM_IVECS])) {
- unsigned int *caller;
+ pp = irq_action + bucket->pil;
+ action = *pp;
+ if (unlikely(!action))
+ return NULL;
- __asm__ __volatile__("mov %%i7, %0" : "=r" (caller));
- printk(KERN_CRIT "free_irq: Old style IRQ removal attempt "
- "from %p, irq %08x.\n", caller, irq);
- return;
- }
-
- spin_lock_irqsave(&irq_action_lock, flags);
-
- action = *(bucket->pil + irq_action);
- if (!action->handler) {
+ if (unlikely(!action->handler)) {
printk("Freeing free IRQ %d\n", bucket->pil);
- return;
- }
- if (dev_id) {
- for ( ; action; action = action->next) {
- if (action->dev_id == dev_id)
- break;
- tmp = action;
- }
- if (!action) {
- printk("Trying to free free shared IRQ %d\n", bucket->pil);
- spin_unlock_irqrestore(&irq_action_lock, flags);
- return;
- }
- } else if (action->flags & SA_SHIRQ) {
- printk("Trying to free shared IRQ %d with NULL device ID\n", bucket->pil);
- spin_unlock_irqrestore(&irq_action_lock, flags);
- return;
+ return NULL;
}
- if (action->flags & SA_STATIC_ALLOC) {
- printk("Attempt to free statically allocated IRQ %d (%s)\n",
- bucket->pil, action->name);
- spin_unlock_irqrestore(&irq_action_lock, flags);
- return;
+ while (action && action->dev_id != dev_id) {
+ pp = &action->next;
+ action = *pp;
}
- if (action && tmp)
- tmp->next = action->next;
- else
- *(bucket->pil + irq_action) = action->next;
+ if (likely(action))
+ *pp = action->next;
+
+ return action;
+}
+
+void free_irq(unsigned int irq, void *dev_id)
+{
+ struct irqaction *action;
+ struct ino_bucket *bucket;
+ unsigned long flags;
+
+ spin_lock_irqsave(&irq_action_lock, flags);
+
+ action = unlink_irq_action(irq, dev_id);
spin_unlock_irqrestore(&irq_action_lock, flags);
+ if (unlikely(!action))
+ return;
+
synchronize_irq(irq);
spin_lock_irqsave(&irq_action_lock, flags);
+ bucket = __bucket(irq);
if (bucket != &pil0_dummy_bucket) {
+ struct irq_desc *desc = bucket->irq_info;
unsigned long imap = bucket->imap;
- void **vector, *orig;
- int ent;
-
- orig = bucket->irq_info;
- vector = (void **)orig;
-
- if ((bucket->flags & IBF_MULTI) != 0) {
- int other = 0;
- void *orphan = NULL;
- for (ent = 0; ent < 4; ent++) {
- if (vector[ent] == action)
- vector[ent] = NULL;
- else if (vector[ent] != NULL) {
- orphan = vector[ent];
- other++;
- }
- }
+ int ent, i;
- /* Only free when no other shared irq
- * uses this bucket.
- */
- if (other) {
- if (other == 1) {
- /* Convert back to non-shared bucket. */
- bucket->irq_info = orphan;
- bucket->flags &= ~(IBF_MULTI);
- kfree(vector);
- }
- goto out;
+ for (i = 0; i < MAX_IRQ_DESC_ACTION; i++) {
+ struct irqaction *p = &desc->action[i];
+
+ if (p == action) {
+ desc->action_active_mask &= ~(1 << i);
+ break;
}
- } else {
- bucket->irq_info = NULL;
}
- /* This unique interrupt source is now inactive. */
- bucket->flags &= ~IBF_ACTIVE;
+ if (!desc->action_active_mask) {
+ /* This unique interrupt source is now inactive. */
+ bucket->flags &= ~IBF_ACTIVE;
- /* See if any other buckets share this bucket's IMAP
- * and are still active.
- */
- for (ent = 0; ent < NUM_IVECS; ent++) {
- bp = &ivector_table[ent];
- if (bp != bucket &&
- bp->imap == imap &&
- (bp->flags & IBF_ACTIVE) != 0)
- break;
- }
+ /* See if any other buckets share this bucket's IMAP
+ * and are still active.
+ */
+ for (ent = 0; ent < NUM_IVECS; ent++) {
+ struct ino_bucket *bp = &ivector_table[ent];
+ if (bp != bucket &&
+ bp->imap == imap &&
+ (bp->flags & IBF_ACTIVE) != 0)
+ break;
+ }
- /* Only disable when no other sub-irq levels of
- * the same IMAP are active.
- */
- if (ent == NUM_IVECS)
- disable_irq(irq);
+ /* Only disable when no other sub-irq levels of
+ * the same IMAP are active.
+ */
+ if (ent == NUM_IVECS)
+ disable_irq(irq);
+ }
}
-out:
- kfree(action);
spin_unlock_irqrestore(&irq_action_lock, flags);
}
@@ -647,99 +554,55 @@ void synchronize_irq(unsigned int irq)
}
#endif /* CONFIG_SMP */
-void catch_disabled_ivec(struct pt_regs *regs)
+static void process_bucket(int irq, struct ino_bucket *bp, struct pt_regs *regs)
{
- int cpu = smp_processor_id();
- struct ino_bucket *bucket = __bucket(*irq_work(cpu, 0));
+ struct irq_desc *desc = bp->irq_info;
+ unsigned char flags = bp->flags;
+ u32 action_mask, i;
+ int random;
- /* We can actually see this on Ultra/PCI PCI cards, which are bridges
- * to other devices. Here a single IMAP enabled potentially multiple
- * unique interrupt sources (which each do have a unique ICLR register.
- *
- * So what we do is just register that the IVEC arrived, when registered
- * for real the request_irq() code will check the bit and signal
- * a local CPU interrupt for it.
- */
-#if 0
- printk("IVEC: Spurious interrupt vector (%x) received at (%016lx)\n",
- bucket - &ivector_table[0], regs->tpc);
-#endif
- *irq_work(cpu, 0) = 0;
- bucket->pending = 1;
-}
-
-/* Tune this... */
-#define FORWARD_VOLUME 12
-
-#ifdef CONFIG_SMP
-
-static inline void redirect_intr(int cpu, struct ino_bucket *bp)
-{
- /* Ok, here is what is going on:
- * 1) Retargeting IRQs on Starfire is very
- * expensive so just forget about it on them.
- * 2) Moving around very high priority interrupts
- * is a losing game.
- * 3) If the current cpu is idle, interrupts are
- * useful work, so keep them here. But do not
- * pass to our neighbour if he is not very idle.
- * 4) If sysadmin explicitly asks for directed intrs,
- * Just Do It.
- */
- struct irqaction *ap = bp->irq_info;
- cpumask_t cpu_mask;
- unsigned int buddy, ticks;
+ bp->flags |= IBF_INPROGRESS;
- cpu_mask = get_smpaff_in_irqaction(ap);
- cpus_and(cpu_mask, cpu_mask, cpu_online_map);
- if (cpus_empty(cpu_mask))
- cpu_mask = cpu_online_map;
-
- if (this_is_starfire != 0 ||
- bp->pil >= 10 || current->pid == 0)
+ if (unlikely(!(flags & IBF_ACTIVE))) {
+ bp->pending = 1;
goto out;
-
- /* 'cpu' is the MID (ie. UPAID), calculate the MID
- * of our buddy.
- */
- buddy = cpu + 1;
- if (buddy >= NR_CPUS)
- buddy = 0;
-
- ticks = 0;
- while (!cpu_isset(buddy, cpu_mask)) {
- if (++buddy >= NR_CPUS)
- buddy = 0;
- if (++ticks > NR_CPUS) {
- put_smpaff_in_irqaction(ap, CPU_MASK_NONE);
- goto out;
- }
}
- if (buddy == cpu)
- goto out;
+ if (desc->pre_handler)
+ desc->pre_handler(bp,
+ desc->pre_handler_arg1,
+ desc->pre_handler_arg2);
- /* Voo-doo programming. */
- if (cpu_data(buddy).idle_volume < FORWARD_VOLUME)
- goto out;
+ action_mask = desc->action_active_mask;
+ random = 0;
+ for (i = 0; i < MAX_IRQ_DESC_ACTION; i++) {
+ struct irqaction *p = &desc->action[i];
+ u32 mask = (1 << i);
- /* This just so happens to be correct on Cheetah
- * at the moment.
- */
- buddy <<= 26;
+ if (!(action_mask & mask))
+ continue;
- /* Push it to our buddy. */
- upa_writel(buddy | IMAP_VALID, bp->imap);
+ action_mask &= ~mask;
+ if (p->handler(__irq(bp), p->dev_id, regs) == IRQ_HANDLED)
+ random |= p->flags;
+
+ if (!action_mask)
+ break;
+ }
+ if (bp->pil != 0) {
+ upa_writel(ICLR_IDLE, bp->iclr);
+ /* Test and add entropy */
+ if (random & SA_SAMPLE_RANDOM)
+ add_interrupt_randomness(irq);
+ }
out:
- return;
+ bp->flags &= ~IBF_INPROGRESS;
}
-#endif
-
void handler_irq(int irq, struct pt_regs *regs)
{
- struct ino_bucket *bp, *nbp;
+ struct ino_bucket *bp;
int cpu = smp_processor_id();
#ifndef CONFIG_SMP
@@ -757,8 +620,6 @@ void handler_irq(int irq, struct pt_regs *regs)
clear_softint(clr_mask);
}
#else
- int should_forward = 0;
-
clear_softint(1 << irq);
#endif
@@ -773,63 +634,12 @@ void handler_irq(int irq, struct pt_regs *regs)
#else
bp = __bucket(xchg32(irq_work(cpu, irq), 0));
#endif
- for ( ; bp != NULL; bp = nbp) {
- unsigned char flags = bp->flags;
- unsigned char random = 0;
+ while (bp) {
+ struct ino_bucket *nbp = __bucket(bp->irq_chain);
- nbp = __bucket(bp->irq_chain);
bp->irq_chain = 0;
-
- bp->flags |= IBF_INPROGRESS;
-
- if ((flags & IBF_ACTIVE) != 0) {
-#ifdef CONFIG_PCI
- if ((flags & IBF_DMA_SYNC) != 0) {
- upa_readl(dma_sync_reg_table[bp->synctab_ent]);
- upa_readq(pci_dma_wsync);
- }
-#endif
- if ((flags & IBF_MULTI) == 0) {
- struct irqaction *ap = bp->irq_info;
- int ret;
-
- ret = ap->handler(__irq(bp), ap->dev_id, regs);
- if (ret == IRQ_HANDLED)
- random |= ap->flags;
- } else {
- void **vector = (void **)bp->irq_info;
- int ent;
- for (ent = 0; ent < 4; ent++) {
- struct irqaction *ap = vector[ent];
- if (ap != NULL) {
- int ret;
-
- ret = ap->handler(__irq(bp),
- ap->dev_id,
- regs);
- if (ret == IRQ_HANDLED)
- random |= ap->flags;
- }
- }
- }
- /* Only the dummy bucket lacks IMAP/ICLR. */
- if (bp->pil != 0) {
-#ifdef CONFIG_SMP
- if (should_forward) {
- redirect_intr(cpu, bp);
- should_forward = 0;
- }
-#endif
- upa_writel(ICLR_IDLE, bp->iclr);
-
- /* Test and add entropy */
- if (random & SA_SAMPLE_RANDOM)
- add_interrupt_randomness(irq);
- }
- } else
- bp->pending = 1;
-
- bp->flags &= ~IBF_INPROGRESS;
+ process_bucket(irq, bp, regs);
+ bp = nbp;
}
irq_exit();
}
@@ -959,7 +769,10 @@ static void distribute_irqs(void)
*/
for (level = 1; level < NR_IRQS; level++) {
struct irqaction *p = irq_action[level];
- if (level == 12) continue;
+
+ if (level == 12)
+ continue;
+
while(p) {
cpu = retarget_one_irq(p, cpu);
p = p->next;
@@ -1104,7 +917,8 @@ static int irq_affinity_read_proc (char *page, char **start, off_t off,
int count, int *eof, void *data)
{
struct ino_bucket *bp = ivector_table + (long)data;
- struct irqaction *ap = bp->irq_info;
+ struct irq_desc *desc = bp->irq_info;
+ struct irqaction *ap = desc->action;
cpumask_t mask;
int len;
@@ -1122,11 +936,13 @@ static int irq_affinity_read_proc (char *page, char **start, off_t off,
static inline void set_intr_affinity(int irq, cpumask_t hw_aff)
{
struct ino_bucket *bp = ivector_table + irq;
+ struct irq_desc *desc = bp->irq_info;
+ struct irqaction *ap = desc->action;
/* Users specify affinity in terms of hw cpu ids.
* As soon as we do this, handler_irq() might see and take action.
*/
- put_smpaff_in_irqaction((struct irqaction *)bp->irq_info, hw_aff);
+ put_smpaff_in_irqaction(ap, hw_aff);
/* Migration is simply done by the next cpu to service this
* interrupt.
diff --git a/arch/sparc64/kernel/kprobes.c b/arch/sparc64/kernel/kprobes.c
index bdac631cf01..bbf11f85dab 100644
--- a/arch/sparc64/kernel/kprobes.c
+++ b/arch/sparc64/kernel/kprobes.c
@@ -433,3 +433,8 @@ int longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
return 0;
}
+/* architecture specific initialization */
+int arch_init_kprobes(void)
+{
+ return 0;
+}
diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c
index 534320ef0db..91ab466d6c6 100644
--- a/arch/sparc64/kernel/pci_psycho.c
+++ b/arch/sparc64/kernel/pci_psycho.c
@@ -1303,8 +1303,7 @@ static void psycho_controller_hwinit(struct pci_controller_info *p)
{
u64 tmp;
- /* PROM sets the IRQ retry value too low, increase it. */
- psycho_write(p->pbm_A.controller_regs + PSYCHO_IRQ_RETRY, 0xff);
+ psycho_write(p->pbm_A.controller_regs + PSYCHO_IRQ_RETRY, 5);
/* Enable arbiter for all PCI slots. */
tmp = psycho_read(p->pbm_A.controller_regs + PSYCHO_PCIA_CTRL);
diff --git a/arch/sparc64/kernel/pci_sabre.c b/arch/sparc64/kernel/pci_sabre.c
index 53d333b4a4e..52bf3431a42 100644
--- a/arch/sparc64/kernel/pci_sabre.c
+++ b/arch/sparc64/kernel/pci_sabre.c
@@ -595,6 +595,23 @@ static int __init sabre_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
return ret;
}
+/* When a device lives behind a bridge deeper in the PCI bus topology
+ * than APB, a special sequence must run to make sure all pending DMA
+ * transfers at the time of IRQ delivery are visible in the coherency
+ * domain by the cpu. This sequence is to perform a read on the far
+ * side of the non-APB bridge, then perform a read of Sabre's DMA
+ * write-sync register.
+ */
+static void sabre_wsync_handler(struct ino_bucket *bucket, void *_arg1, void *_arg2)
+{
+ struct pci_dev *pdev = _arg1;
+ unsigned long sync_reg = (unsigned long) _arg2;
+ u16 _unused;
+
+ pci_read_config_word(pdev, PCI_VENDOR_ID, &_unused);
+ sabre_read(sync_reg);
+}
+
static unsigned int __init sabre_irq_build(struct pci_pbm_info *pbm,
struct pci_dev *pdev,
unsigned int ino)
@@ -639,24 +656,14 @@ static unsigned int __init sabre_irq_build(struct pci_pbm_info *pbm,
if (pdev) {
struct pcidev_cookie *pcp = pdev->sysdata;
- /* When a device lives behind a bridge deeper in the
- * PCI bus topology than APB, a special sequence must
- * run to make sure all pending DMA transfers at the
- * time of IRQ delivery are visible in the coherency
- * domain by the cpu. This sequence is to perform
- * a read on the far side of the non-APB bridge, then
- * perform a read of Sabre's DMA write-sync register.
- *
- * Currently, the PCI_CONFIG register for the device
- * is used for this read from the far side of the bridge.
- */
if (pdev->bus->number != pcp->pbm->pci_first_busno) {
- bucket->flags |= IBF_DMA_SYNC;
- bucket->synctab_ent = dma_sync_reg_table_entry++;
- dma_sync_reg_table[bucket->synctab_ent] =
- (unsigned long) sabre_pci_config_mkaddr(
- pcp->pbm,
- pdev->bus->number, pdev->devfn, PCI_COMMAND);
+ struct pci_controller_info *p = pcp->pbm->parent;
+ struct irq_desc *d = bucket->irq_info;
+
+ d->pre_handler = sabre_wsync_handler;
+ d->pre_handler_arg1 = pdev;
+ d->pre_handler_arg2 = (void *)
+ p->pbm_A.controller_regs + SABRE_WRSYNC;
}
}
return __irq(bucket);
@@ -1626,10 +1633,9 @@ void __init sabre_init(int pnode, char *model_name)
*/
p->pbm_A.controller_regs = pr_regs[0].phys_addr;
p->pbm_B.controller_regs = pr_regs[0].phys_addr;
- pci_dma_wsync = p->pbm_A.controller_regs + SABRE_WRSYNC;
- printk("PCI: Found SABRE, main regs at %016lx, wsync at %016lx\n",
- p->pbm_A.controller_regs, pci_dma_wsync);
+ printk("PCI: Found SABRE, main regs at %016lx\n",
+ p->pbm_A.controller_regs);
/* Clear interrupts */
diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c
index 5753175b94e..6a182bb6628 100644
--- a/arch/sparc64/kernel/pci_schizo.c
+++ b/arch/sparc64/kernel/pci_schizo.c
@@ -15,6 +15,7 @@
#include <asm/iommu.h>
#include <asm/irq.h>
#include <asm/upa.h>
+#include <asm/pstate.h>
#include "pci_impl.h"
#include "iommu_common.h"
@@ -326,6 +327,44 @@ static int __init schizo_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
return ret;
}
+static void tomatillo_wsync_handler(struct ino_bucket *bucket, void *_arg1, void *_arg2)
+{
+ unsigned long sync_reg = (unsigned long) _arg2;
+ u64 mask = 1 << (__irq_ino(__irq(bucket)) & IMAP_INO);
+ u64 val;
+ int limit;
+
+ schizo_write(sync_reg, mask);
+
+ limit = 100000;
+ val = 0;
+ while (--limit) {
+ val = schizo_read(sync_reg);
+ if (!(val & mask))
+ break;
+ }
+ if (limit <= 0) {
+ printk("tomatillo_wsync_handler: DMA won't sync [%lx:%lx]\n",
+ val, mask);
+ }
+
+ if (_arg1) {
+ static unsigned char cacheline[64]
+ __attribute__ ((aligned (64)));
+
+ __asm__ __volatile__("rd %%fprs, %0\n\t"
+ "or %0, %4, %1\n\t"
+ "wr %1, 0x0, %%fprs\n\t"
+ "stda %%f0, [%5] %6\n\t"
+ "wr %0, 0x0, %%fprs\n\t"
+ "membar #Sync"
+ : "=&r" (mask), "=&r" (val)
+ : "0" (mask), "1" (val),
+ "i" (FPRS_FEF), "r" (&cacheline[0]),
+ "i" (ASI_BLK_COMMIT_P));
+ }
+}
+
static unsigned int schizo_irq_build(struct pci_pbm_info *pbm,
struct pci_dev *pdev,
unsigned int ino)
@@ -369,6 +408,15 @@ static unsigned int schizo_irq_build(struct pci_pbm_info *pbm,
bucket = __bucket(build_irq(pil, ign_fixup, iclr, imap));
bucket->flags |= IBF_PCI;
+ if (pdev && pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO) {
+ struct irq_desc *p = bucket->irq_info;
+
+ p->pre_handler = tomatillo_wsync_handler;
+ p->pre_handler_arg1 = ((pbm->chip_version <= 4) ?
+ (void *) 1 : (void *) 0);
+ p->pre_handler_arg2 = (void *) pbm->sync_reg;
+ }
+
return __irq(bucket);
}
@@ -885,6 +933,7 @@ static irqreturn_t schizo_ce_intr(int irq, void *dev_id, struct pt_regs *regs)
#define SCHIZO_PCI_CTRL (0x2000UL)
#define SCHIZO_PCICTRL_BUS_UNUS (1UL << 63UL) /* Safari */
+#define SCHIZO_PCICTRL_DTO_INT (1UL << 61UL) /* Tomatillo */
#define SCHIZO_PCICTRL_ARB_PRIO (0x1ff << 52UL) /* Tomatillo */
#define SCHIZO_PCICTRL_ESLCK (1UL << 51UL) /* Safari */
#define SCHIZO_PCICTRL_ERRSLOT (7UL << 48UL) /* Safari */
@@ -1887,37 +1936,27 @@ static void __init schizo_pbm_hw_init(struct pci_pbm_info *pbm)
{
u64 tmp;
- /* Set IRQ retry to infinity. */
- schizo_write(pbm->pbm_regs + SCHIZO_PCI_IRQ_RETRY,
- SCHIZO_IRQ_RETRY_INF);
+ schizo_write(pbm->pbm_regs + SCHIZO_PCI_IRQ_RETRY, 5);
- /* Enable arbiter for all PCI slots. Also, disable PCI interval
- * timer so that DTO (Discard TimeOuts) are not reported because
- * some Schizo revisions report them erroneously.
- */
tmp = schizo_read(pbm->pbm_regs + SCHIZO_PCI_CTRL);
- if (pbm->chip_type == PBM_CHIP_TYPE_SCHIZO_PLUS &&
- pbm->chip_version == 0x5 &&
- pbm->chip_revision == 0x1)
- tmp |= 0x0f;
- else
- tmp |= 0xff;
- tmp &= ~SCHIZO_PCICTRL_PTO;
+ /* Enable arbiter for all PCI slots. */
+ tmp |= 0xff;
+
if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO &&
pbm->chip_version >= 0x2)
tmp |= 0x3UL << SCHIZO_PCICTRL_PTO_SHIFT;
- else
- tmp |= 0x1UL << SCHIZO_PCICTRL_PTO_SHIFT;
if (!prom_getbool(pbm->prom_node, "no-bus-parking"))
tmp |= SCHIZO_PCICTRL_PARK;
+ else
+ tmp &= ~SCHIZO_PCICTRL_PARK;
if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO &&
pbm->chip_version <= 0x1)
- tmp |= (1UL << 61);
+ tmp |= SCHIZO_PCICTRL_DTO_INT;
else
- tmp &= ~(1UL << 61);
+ tmp &= ~SCHIZO_PCICTRL_DTO_INT;
if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO)
tmp |= (SCHIZO_PCICTRL_MRM_PREF |
@@ -2015,6 +2054,9 @@ static void __init schizo_pbm_init(struct pci_controller_info *p,
pbm->pbm_regs = pr_regs[0].phys_addr;
pbm->controller_regs = pr_regs[1].phys_addr - 0x10000UL;
+ if (chip_type == PBM_CHIP_TYPE_TOMATILLO)
+ pbm->sync_reg = pr_regs[3].phys_addr + 0x1a18UL;
+
sprintf(pbm->name,
(chip_type == PBM_CHIP_TYPE_TOMATILLO ?
"TOMATILLO%d PBM%c" :
diff --git a/arch/sparc64/kernel/power.c b/arch/sparc64/kernel/power.c
index 52f14e399b1..533104c7907 100644
--- a/arch/sparc64/kernel/power.c
+++ b/arch/sparc64/kernel/power.c
@@ -4,6 +4,8 @@
* Copyright (C) 1999 David S. Miller (davem@redhat.com)
*/
+#define __KERNEL_SYSCALLS__
+
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -17,7 +19,6 @@
#include <asm/ebus.h>
#include <asm/auxio.h>
-#define __KERNEL_SYSCALLS__
#include <linux/unistd.h>
/*
diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c
index 80a76e2ad73..23ad839d113 100644
--- a/arch/sparc64/kernel/ptrace.c
+++ b/arch/sparc64/kernel/ptrace.c
@@ -19,6 +19,8 @@
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/security.h>
+#include <linux/seccomp.h>
+#include <linux/audit.h>
#include <linux/signal.h>
#include <asm/asi.h>
@@ -628,15 +630,27 @@ out:
unlock_kernel();
}
-asmlinkage void syscall_trace(void)
+asmlinkage void syscall_trace(struct pt_regs *regs, int syscall_exit_p)
{
-#ifdef DEBUG_PTRACE
- printk("%s [%d]: syscall_trace\n", current->comm, current->pid);
-#endif
- if (!test_thread_flag(TIF_SYSCALL_TRACE))
- return;
+ /* do the secure computing check first */
+ secure_computing(regs->u_regs[UREG_G1]);
+
+ if (unlikely(current->audit_context) && syscall_exit_p) {
+ unsigned long tstate = regs->tstate;
+ int result = AUDITSC_SUCCESS;
+
+ if (unlikely(tstate & (TSTATE_XCARRY | TSTATE_ICARRY)))
+ result = AUDITSC_FAILURE;
+
+ audit_syscall_exit(current, result, regs->u_regs[UREG_I0]);
+ }
+
if (!(current->ptrace & PT_PTRACED))
- return;
+ goto out;
+
+ if (!test_thread_flag(TIF_SYSCALL_TRACE))
+ goto out;
+
ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
? 0x80 : 0));
@@ -645,12 +659,20 @@ asmlinkage void syscall_trace(void)
* for normal use. strace only continues with a signal if the
* stopping signal is not SIGTRAP. -brl
*/
-#ifdef DEBUG_PTRACE
- printk("%s [%d]: syscall_trace exit= %x\n", current->comm,
- current->pid, current->exit_code);
-#endif
if (current->exit_code) {
- send_sig (current->exit_code, current, 1);
+ send_sig(current->exit_code, current, 1);
current->exit_code = 0;
}
+
+out:
+ if (unlikely(current->audit_context) && !syscall_exit_p)
+ audit_syscall_entry(current,
+ (test_thread_flag(TIF_32BIT) ?
+ AUDIT_ARCH_SPARC :
+ AUDIT_ARCH_SPARC64),
+ regs->u_regs[UREG_G1],
+ regs->u_regs[UREG_I0],
+ regs->u_regs[UREG_I1],
+ regs->u_regs[UREG_I2],
+ regs->u_regs[UREG_I3]);
}
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index e5b9c7a2778..7e8e2919e18 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -45,8 +45,8 @@ extern void calibrate_delay(void);
/* Please don't make this stuff initdata!!! --DaveM */
static unsigned char boot_cpu_id;
-cpumask_t cpu_online_map = CPU_MASK_NONE;
-cpumask_t phys_cpu_present_map = CPU_MASK_NONE;
+cpumask_t cpu_online_map __read_mostly = CPU_MASK_NONE;
+cpumask_t phys_cpu_present_map __read_mostly = CPU_MASK_NONE;
static cpumask_t smp_commenced_mask;
static cpumask_t cpu_callout_map;
@@ -155,7 +155,7 @@ void cpu_panic(void)
panic("SMP bolixed\n");
}
-static unsigned long current_tick_offset;
+static unsigned long current_tick_offset __read_mostly;
/* This tick register synchronization scheme is taken entirely from
* the ia64 port, see arch/ia64/kernel/smpboot.c for details and credit.
@@ -1193,8 +1193,8 @@ void smp_send_stop(void)
{
}
-unsigned long __per_cpu_base;
-unsigned long __per_cpu_shift;
+unsigned long __per_cpu_base __read_mostly;
+unsigned long __per_cpu_shift __read_mostly;
EXPORT_SYMBOL(__per_cpu_base);
EXPORT_SYMBOL(__per_cpu_shift);
diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c
index 56cd96f4a5c..9202d925a9c 100644
--- a/arch/sparc64/kernel/sparc64_ksyms.c
+++ b/arch/sparc64/kernel/sparc64_ksyms.c
@@ -79,7 +79,7 @@ extern void linux_sparc_syscall(void);
extern void rtrap(void);
extern void show_regs(struct pt_regs *);
extern void solaris_syscall(void);
-extern void syscall_trace(void);
+extern void syscall_trace(struct pt_regs *, int);
extern u32 sunos_sys_table[], sys_call_table32[];
extern void tl0_solaris(void);
extern void sys_sigsuspend(void);
diff --git a/arch/sparc64/kernel/sys32.S b/arch/sparc64/kernel/sys32.S
index 5a95e98c531..5f9e4fae612 100644
--- a/arch/sparc64/kernel/sys32.S
+++ b/arch/sparc64/kernel/sys32.S
@@ -135,6 +135,8 @@ SIGN2(sys32_shutdown, sys_shutdown, %o0, %o1)
SIGN3(sys32_socketpair, sys_socketpair, %o0, %o1, %o2)
SIGN1(sys32_getpeername, sys_getpeername, %o0)
SIGN1(sys32_getsockname, sys_getsockname, %o0)
+SIGN2(sys32_ioprio_get, sys_ioprio_get, %o0, %o1)
+SIGN3(sys32_ioprio_set, sys_ioprio_set, %o0, %o1, %o2)
.globl sys32_mmap2
sys32_mmap2:
diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S
index a5e36a4c892..bceb91a8a2b 100644
--- a/arch/sparc64/kernel/systbls.S
+++ b/arch/sparc64/kernel/systbls.S
@@ -59,11 +59,11 @@ sys_call_table32:
/*180*/ .word sys32_flistxattr, sys_removexattr, sys_lremovexattr, compat_sys_sigpending, sys_ni_syscall
.word sys32_setpgid, sys32_fremovexattr, sys32_tkill, sys32_exit_group, sparc64_newuname
/*190*/ .word sys32_init_module, sparc64_personality, sys_remap_file_pages, sys32_epoll_create, sys32_epoll_ctl
- .word sys32_epoll_wait, sys_nis_syscall, sys_getppid, sys32_sigaction, sys_sgetmask
+ .word sys32_epoll_wait, sys32_ioprio_set, sys_getppid, sys32_sigaction, sys_sgetmask
/*200*/ .word sys32_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir
.word sys32_readahead, sys32_socketcall, sys32_syslog, sys32_lookup_dcookie, sys32_fadvise64
/*210*/ .word sys32_fadvise64_64, sys32_tgkill, sys32_waitpid, sys_swapoff, sys32_sysinfo
- .word sys32_ipc, sys32_sigreturn, sys_clone, sys_nis_syscall, sys32_adjtimex
+ .word sys32_ipc, sys32_sigreturn, sys_clone, sys32_ioprio_get, sys32_adjtimex
/*220*/ .word sys32_sigprocmask, sys_ni_syscall, sys32_delete_module, sys_ni_syscall, sys32_getpgid
.word sys32_bdflush, sys32_sysfs, sys_nis_syscall, sys32_setfsuid16, sys32_setfsgid16
/*230*/ .word sys32_select, compat_sys_time, sys_nis_syscall, compat_sys_stime, compat_sys_statfs64
@@ -125,11 +125,11 @@ sys_call_table:
/*180*/ .word sys_flistxattr, sys_removexattr, sys_lremovexattr, sys_nis_syscall, sys_ni_syscall
.word sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sparc64_newuname
/*190*/ .word sys_init_module, sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl
- .word sys_epoll_wait, sys_nis_syscall, sys_getppid, sys_nis_syscall, sys_sgetmask
+ .word sys_epoll_wait, sys_ioprio_set, sys_getppid, sys_nis_syscall, sys_sgetmask
/*200*/ .word sys_ssetmask, sys_nis_syscall, sys_newlstat, sys_uselib, sys_nis_syscall
.word sys_readahead, sys_socketcall, sys_syslog, sys_lookup_dcookie, sys_fadvise64
/*210*/ .word sys_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, sys_sysinfo
- .word sys_ipc, sys_nis_syscall, sys_clone, sys_nis_syscall, sys_adjtimex
+ .word sys_ipc, sys_nis_syscall, sys_clone, sys_ioprio_get, sys_adjtimex
/*220*/ .word sys_nis_syscall, sys_ni_syscall, sys_delete_module, sys_ni_syscall, sys_getpgid
.word sys_bdflush, sys_sysfs, sys_nis_syscall, sys_setfsuid, sys_setfsgid
/*230*/ .word sys_select, sys_nis_syscall, sys_nis_syscall, sys_stime, sys_statfs64
diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c
index 71b4e380769..362b9c26871 100644
--- a/arch/sparc64/kernel/time.c
+++ b/arch/sparc64/kernel/time.c
@@ -73,7 +73,7 @@ static __initdata struct sparc64_tick_ops dummy_tick_ops = {
.get_tick = dummy_get_tick,
};
-struct sparc64_tick_ops *tick_ops = &dummy_tick_ops;
+struct sparc64_tick_ops *tick_ops __read_mostly = &dummy_tick_ops;
#define TICK_PRIV_BIT (1UL << 63)
@@ -195,7 +195,7 @@ static unsigned long tick_add_tick(unsigned long adj, unsigned long offset)
return new_tick;
}
-static struct sparc64_tick_ops tick_operations = {
+static struct sparc64_tick_ops tick_operations __read_mostly = {
.init_tick = tick_init_tick,
.get_tick = tick_get_tick,
.get_compare = tick_get_compare,
@@ -276,7 +276,7 @@ static unsigned long stick_add_compare(unsigned long adj)
return new_compare;
}
-static struct sparc64_tick_ops stick_operations = {
+static struct sparc64_tick_ops stick_operations __read_mostly = {
.init_tick = stick_init_tick,
.get_tick = stick_get_tick,
.get_compare = stick_get_compare,
@@ -422,7 +422,7 @@ static unsigned long hbtick_add_compare(unsigned long adj)
return val;
}
-static struct sparc64_tick_ops hbtick_operations = {
+static struct sparc64_tick_ops hbtick_operations __read_mostly = {
.init_tick = hbtick_init_tick,
.get_tick = hbtick_get_tick,
.get_compare = hbtick_get_compare,
@@ -437,10 +437,9 @@ static struct sparc64_tick_ops hbtick_operations = {
* NOTE: On SUN5 systems the ticker interrupt comes in using 2
* interrupts, one at level14 and one with softint bit 0.
*/
-unsigned long timer_tick_offset;
-unsigned long timer_tick_compare;
+unsigned long timer_tick_offset __read_mostly;
-static unsigned long timer_ticks_per_nsec_quotient;
+static unsigned long timer_ticks_per_nsec_quotient __read_mostly;
#define TICK_SIZE (tick_nsec / 1000)
@@ -464,7 +463,7 @@ static inline void timer_check_rtc(void)
static irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
{
- unsigned long ticks, pstate;
+ unsigned long ticks, compare, pstate;
write_seqlock(&xtime_lock);
@@ -483,14 +482,14 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
: "=r" (pstate)
: "i" (PSTATE_IE));
- timer_tick_compare = tick_ops->add_compare(timer_tick_offset);
+ compare = tick_ops->add_compare(timer_tick_offset);
ticks = tick_ops->get_tick();
/* Restore PSTATE_IE. */
__asm__ __volatile__("wrpr %0, 0x0, %%pstate"
: /* no outputs */
: "r" (pstate));
- } while (time_after_eq(ticks, timer_tick_compare));
+ } while (time_after_eq(ticks, compare));
timer_check_rtc();
@@ -506,11 +505,6 @@ void timer_tick_interrupt(struct pt_regs *regs)
do_timer(regs);
- /*
- * Only keep timer_tick_offset uptodate, but don't set TICK_CMPR.
- */
- timer_tick_compare = tick_ops->get_compare() + timer_tick_offset;
-
timer_check_rtc();
write_sequnlock(&xtime_lock);
@@ -973,7 +967,7 @@ static void sparc64_start_timers(irqreturn_t (*cfunc)(int, void *, struct pt_reg
int err;
/* Register IRQ handler. */
- err = request_irq(build_irq(0, 0, 0UL, 0UL), cfunc, SA_STATIC_ALLOC,
+ err = request_irq(build_irq(0, 0, 0UL, 0UL), cfunc, 0,
"timer", NULL);
if (err) {
diff --git a/arch/sparc64/kernel/vmlinux.lds.S b/arch/sparc64/kernel/vmlinux.lds.S
index 382fd6798bb..950423da8a6 100644
--- a/arch/sparc64/kernel/vmlinux.lds.S
+++ b/arch/sparc64/kernel/vmlinux.lds.S
@@ -32,6 +32,8 @@ SECTIONS
.data1 : { *(.data1) }
. = ALIGN(64);
.data.cacheline_aligned : { *(.data.cacheline_aligned) }
+ . = ALIGN(64);
+ .data.read_mostly : { *(.data.read_mostly) }
_edata = .;
PROVIDE (edata = .);
.fixup : { *(.fixup) }
diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c
index 3ffee7b51ae..52e9375288a 100644
--- a/arch/sparc64/mm/fault.c
+++ b/arch/sparc64/mm/fault.c
@@ -34,22 +34,6 @@
extern struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS];
/*
- * To debug kernel during syscall entry.
- */
-void syscall_trace_entry(struct pt_regs *regs)
-{
- printk("scall entry: %s[%d]/cpu%d: %d\n", current->comm, current->pid, smp_processor_id(), (int) regs->u_regs[UREG_G1]);
-}
-
-/*
- * To debug kernel during syscall exit.
- */
-void syscall_trace_exit(struct pt_regs *regs)
-{
- printk("scall exit: %s[%d]/cpu%d: %d\n", current->comm, current->pid, smp_processor_id(), (int) regs->u_regs[UREG_G1]);
-}
-
-/*
* To debug kernel to catch accesses to certain virtual/physical addresses.
* Mode = 0 selects physical watchpoints, mode = 1 selects virtual watchpoints.
* flags = VM_READ watches memread accesses, flags = VM_WRITE watches memwrite accesses.
diff --git a/arch/sparc64/mm/ultra.S b/arch/sparc64/mm/ultra.S
index 7a2431d3abc..36377089379 100644
--- a/arch/sparc64/mm/ultra.S
+++ b/arch/sparc64/mm/ultra.S
@@ -72,6 +72,7 @@ __flush_tlb_pending:
flush %g6
retl
wrpr %g7, 0x0, %pstate
+ nop
.align 32
.globl __flush_tlb_kernel_range
@@ -249,7 +250,7 @@ __cheetah_flush_tlb_mm: /* 15 insns */
retl
wrpr %g7, 0x0, %pstate
-__cheetah_flush_tlb_pending: /* 22 insns */
+__cheetah_flush_tlb_pending: /* 23 insns */
/* %o0 = context, %o1 = nr, %o2 = vaddrs[] */
rdpr %pstate, %g7
sllx %o1, 3, %o1
@@ -317,7 +318,7 @@ cheetah_patch_cachetlbops:
sethi %hi(__cheetah_flush_tlb_pending), %o1
or %o1, %lo(__cheetah_flush_tlb_pending), %o1
call cheetah_patch_one
- mov 22, %o2
+ mov 23, %o2
#ifdef DCACHE_ALIASING_POSSIBLE
sethi %hi(__flush_dcache_page), %o0
diff --git a/arch/sparc64/solaris/entry64.S b/arch/sparc64/solaris/entry64.S
index 0cc9dad75c5..4b6ae583c0a 100644
--- a/arch/sparc64/solaris/entry64.S
+++ b/arch/sparc64/solaris/entry64.S
@@ -24,8 +24,9 @@
.text
solaris_syscall_trace:
+ add %sp, PTREGS_OFF, %o0
call syscall_trace
- nop
+ mov 0, %o1
srl %i0, 0, %o0
mov %i4, %o4
srl %i1, 0, %o1
@@ -159,8 +160,10 @@ ret_from_solaris:
stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC] !npc = npc+4
solaris_syscall_trace2:
+ add %sp, PTREGS_OFF, %o0
call syscall_trace
- add %l1, 0x4, %l2 /* npc = npc+4 */
+ mov 1, %o1
+ add %l1, 0x4, %l2 /* npc = npc+4 */
andcc %l1, 1, %g0
bne,pn %icc, 2b
nop
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 12:49:21 +0000