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-rw-r--r--arch/sparc64/kernel/entry.S293
-rw-r--r--arch/sparc64/kernel/pci.c1
-rw-r--r--arch/sparc64/kernel/pci_iommu.c2
-rw-r--r--arch/sparc64/kernel/process.c2
-rw-r--r--arch/sparc64/kernel/sbus.c2
-rw-r--r--arch/sparc64/kernel/setup.c1
-rw-r--r--arch/sparc64/kernel/signal.c11
-rw-r--r--arch/sparc64/kernel/signal32.c33
-rw-r--r--arch/sparc64/kernel/smp.c30
-rw-r--r--arch/sparc64/kernel/sparc64_ksyms.c32
-rw-r--r--arch/sparc64/kernel/traps.c269
-rw-r--r--arch/sparc64/kernel/ttable.S27
-rw-r--r--arch/sparc64/kernel/unaligned.c18
-rw-r--r--arch/sparc64/kernel/winfixup.S6
-rw-r--r--arch/sparc64/lib/Makefile2
-rw-r--r--arch/sparc64/lib/debuglocks.c56
-rw-r--r--arch/sparc64/lib/mb.S73
-rw-r--r--arch/sparc64/solaris/misc.c6
18 files changed, 512 insertions, 352 deletions
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index 88332f00094..cecdc0a7521 100644
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -21,6 +21,7 @@
#include <asm/visasm.h>
#include <asm/estate.h>
#include <asm/auxio.h>
+#include <asm/sfafsr.h>
#define curptr g6
@@ -690,14 +691,159 @@ netbsd_syscall:
retl
nop
- /* These next few routines must be sure to clear the
- * SFSR FaultValid bit so that the fast tlb data protection
- * handler does not flush the wrong context and lock up the
- * box.
+ /* We need to carefully read the error status, ACK
+ * the errors, prevent recursive traps, and pass the
+ * information on to C code for logging.
+ *
+ * We pass the AFAR in as-is, and we encode the status
+ * information as described in asm-sparc64/sfafsr.h
+ */
+ .globl __spitfire_access_error
+__spitfire_access_error:
+ /* Disable ESTATE error reporting so that we do not
+ * take recursive traps and RED state the processor.
+ */
+ stxa %g0, [%g0] ASI_ESTATE_ERROR_EN
+ membar #Sync
+
+ mov UDBE_UE, %g1
+ ldxa [%g0] ASI_AFSR, %g4 ! Get AFSR
+
+ /* __spitfire_cee_trap branches here with AFSR in %g4 and
+ * UDBE_CE in %g1. It only clears ESTATE_ERR_CE in the
+ * ESTATE Error Enable register.
+ */
+__spitfire_cee_trap_continue:
+ ldxa [%g0] ASI_AFAR, %g5 ! Get AFAR
+
+ rdpr %tt, %g3
+ and %g3, 0x1ff, %g3 ! Paranoia
+ sllx %g3, SFSTAT_TRAP_TYPE_SHIFT, %g3
+ or %g4, %g3, %g4
+ rdpr %tl, %g3
+ cmp %g3, 1
+ mov 1, %g3
+ bleu %xcc, 1f
+ sllx %g3, SFSTAT_TL_GT_ONE_SHIFT, %g3
+
+ or %g4, %g3, %g4
+
+ /* Read in the UDB error register state, clearing the
+ * sticky error bits as-needed. We only clear them if
+ * the UE bit is set. Likewise, __spitfire_cee_trap
+ * below will only do so if the CE bit is set.
+ *
+ * NOTE: UltraSparc-I/II have high and low UDB error
+ * registers, corresponding to the two UDB units
+ * present on those chips. UltraSparc-IIi only
+ * has a single UDB, called "SDB" in the manual.
+ * For IIi the upper UDB register always reads
+ * as zero so for our purposes things will just
+ * work with the checks below.
*/
- .globl __do_data_access_exception
- .globl __do_data_access_exception_tl1
-__do_data_access_exception_tl1:
+1: ldxa [%g0] ASI_UDBH_ERROR_R, %g3
+ and %g3, 0x3ff, %g7 ! Paranoia
+ sllx %g7, SFSTAT_UDBH_SHIFT, %g7
+ or %g4, %g7, %g4
+ andcc %g3, %g1, %g3 ! UDBE_UE or UDBE_CE
+ be,pn %xcc, 1f
+ nop
+ stxa %g3, [%g0] ASI_UDB_ERROR_W
+ membar #Sync
+
+1: mov 0x18, %g3
+ ldxa [%g3] ASI_UDBL_ERROR_R, %g3
+ and %g3, 0x3ff, %g7 ! Paranoia
+ sllx %g7, SFSTAT_UDBL_SHIFT, %g7
+ or %g4, %g7, %g4
+ andcc %g3, %g1, %g3 ! UDBE_UE or UDBE_CE
+ be,pn %xcc, 1f
+ nop
+ mov 0x18, %g7
+ stxa %g3, [%g7] ASI_UDB_ERROR_W
+ membar #Sync
+
+1: /* Ok, now that we've latched the error state,
+ * clear the sticky bits in the AFSR.
+ */
+ stxa %g4, [%g0] ASI_AFSR
+ membar #Sync
+
+ rdpr %tl, %g2
+ cmp %g2, 1
+ rdpr %pil, %g2
+ bleu,pt %xcc, 1f
+ wrpr %g0, 15, %pil
+
+ ba,pt %xcc, etraptl1
+ rd %pc, %g7
+
+ ba,pt %xcc, 2f
+ nop
+
+1: ba,pt %xcc, etrap_irq
+ rd %pc, %g7
+
+2: mov %l4, %o1
+ mov %l5, %o2
+ call spitfire_access_error
+ add %sp, PTREGS_OFF, %o0
+ ba,pt %xcc, rtrap
+ clr %l6
+
+ /* This is the trap handler entry point for ECC correctable
+ * errors. They are corrected, but we listen for the trap
+ * so that the event can be logged.
+ *
+ * Disrupting errors are either:
+ * 1) single-bit ECC errors during UDB reads to system
+ * memory
+ * 2) data parity errors during write-back events
+ *
+ * As far as I can make out from the manual, the CEE trap
+ * is only for correctable errors during memory read
+ * accesses by the front-end of the processor.
+ *
+ * The code below is only for trap level 1 CEE events,
+ * as it is the only situation where we can safely record
+ * and log. For trap level >1 we just clear the CE bit
+ * in the AFSR and return.
+ *
+ * This is just like __spiftire_access_error above, but it
+ * specifically handles correctable errors. If an
+ * uncorrectable error is indicated in the AFSR we
+ * will branch directly above to __spitfire_access_error
+ * to handle it instead. Uncorrectable therefore takes
+ * priority over correctable, and the error logging
+ * C code will notice this case by inspecting the
+ * trap type.
+ */
+ .globl __spitfire_cee_trap
+__spitfire_cee_trap:
+ ldxa [%g0] ASI_AFSR, %g4 ! Get AFSR
+ mov 1, %g3
+ sllx %g3, SFAFSR_UE_SHIFT, %g3
+ andcc %g4, %g3, %g0 ! Check for UE
+ bne,pn %xcc, __spitfire_access_error
+ nop
+
+ /* Ok, in this case we only have a correctable error.
+ * Indicate we only wish to capture that state in register
+ * %g1, and we only disable CE error reporting unlike UE
+ * handling which disables all errors.
+ */
+ ldxa [%g0] ASI_ESTATE_ERROR_EN, %g3
+ andn %g3, ESTATE_ERR_CE, %g3
+ stxa %g3, [%g0] ASI_ESTATE_ERROR_EN
+ membar #Sync
+
+ /* Preserve AFSR in %g4, indicate UDB state to capture in %g1 */
+ ba,pt %xcc, __spitfire_cee_trap_continue
+ mov UDBE_CE, %g1
+
+ .globl __spitfire_data_access_exception
+ .globl __spitfire_data_access_exception_tl1
+__spitfire_data_access_exception_tl1:
rdpr %pstate, %g4
wrpr %g4, PSTATE_MG|PSTATE_AG, %pstate
mov TLB_SFSR, %g3
@@ -706,9 +852,25 @@ __do_data_access_exception_tl1:
ldxa [%g5] ASI_DMMU, %g5 ! Get SFAR
stxa %g0, [%g3] ASI_DMMU ! Clear SFSR.FaultValid bit
membar #Sync
+ rdpr %tt, %g3
+ cmp %g3, 0x80 ! first win spill/fill trap
+ blu,pn %xcc, 1f
+ cmp %g3, 0xff ! last win spill/fill trap
+ bgu,pn %xcc, 1f
+ nop
ba,pt %xcc, winfix_dax
rdpr %tpc, %g3
-__do_data_access_exception:
+1: sethi %hi(109f), %g7
+ ba,pt %xcc, etraptl1
+109: or %g7, %lo(109b), %g7
+ mov %l4, %o1
+ mov %l5, %o2
+ call spitfire_data_access_exception_tl1
+ add %sp, PTREGS_OFF, %o0
+ ba,pt %xcc, rtrap
+ clr %l6
+
+__spitfire_data_access_exception:
rdpr %pstate, %g4
wrpr %g4, PSTATE_MG|PSTATE_AG, %pstate
mov TLB_SFSR, %g3
@@ -722,20 +884,19 @@ __do_data_access_exception:
109: or %g7, %lo(109b), %g7
mov %l4, %o1
mov %l5, %o2
- call data_access_exception
+ call spitfire_data_access_exception
add %sp, PTREGS_OFF, %o0
ba,pt %xcc, rtrap
clr %l6
- .globl __do_instruction_access_exception
- .globl __do_instruction_access_exception_tl1
-__do_instruction_access_exception_tl1:
+ .globl __spitfire_insn_access_exception
+ .globl __spitfire_insn_access_exception_tl1
+__spitfire_insn_access_exception_tl1:
rdpr %pstate, %g4
wrpr %g4, PSTATE_MG|PSTATE_AG, %pstate
mov TLB_SFSR, %g3
- mov DMMU_SFAR, %g5
- ldxa [%g3] ASI_DMMU, %g4 ! Get SFSR
- ldxa [%g5] ASI_DMMU, %g5 ! Get SFAR
+ ldxa [%g3] ASI_IMMU, %g4 ! Get SFSR
+ rdpr %tpc, %g5 ! IMMU has no SFAR, use TPC
stxa %g0, [%g3] ASI_IMMU ! Clear FaultValid bit
membar #Sync
sethi %hi(109f), %g7
@@ -743,18 +904,17 @@ __do_instruction_access_exception_tl1:
109: or %g7, %lo(109b), %g7
mov %l4, %o1
mov %l5, %o2
- call instruction_access_exception_tl1
+ call spitfire_insn_access_exception_tl1
add %sp, PTREGS_OFF, %o0
ba,pt %xcc, rtrap
clr %l6
-__do_instruction_access_exception:
+__spitfire_insn_access_exception:
rdpr %pstate, %g4
wrpr %g4, PSTATE_MG|PSTATE_AG, %pstate
mov TLB_SFSR, %g3
- mov DMMU_SFAR, %g5
- ldxa [%g3] ASI_DMMU, %g4 ! Get SFSR
- ldxa [%g5] ASI_DMMU, %g5 ! Get SFAR
+ ldxa [%g3] ASI_IMMU, %g4 ! Get SFSR
+ rdpr %tpc, %g5 ! IMMU has no SFAR, use TPC
stxa %g0, [%g3] ASI_IMMU ! Clear FaultValid bit
membar #Sync
sethi %hi(109f), %g7
@@ -762,102 +922,11 @@ __do_instruction_access_exception:
109: or %g7, %lo(109b), %g7
mov %l4, %o1
mov %l5, %o2
- call instruction_access_exception
+ call spitfire_insn_access_exception
add %sp, PTREGS_OFF, %o0
ba,pt %xcc, rtrap
clr %l6
- /* This is the trap handler entry point for ECC correctable
- * errors. They are corrected, but we listen for the trap
- * so that the event can be logged.
- *
- * Disrupting errors are either:
- * 1) single-bit ECC errors during UDB reads to system
- * memory
- * 2) data parity errors during write-back events
- *
- * As far as I can make out from the manual, the CEE trap
- * is only for correctable errors during memory read
- * accesses by the front-end of the processor.
- *
- * The code below is only for trap level 1 CEE events,
- * as it is the only situation where we can safely record
- * and log. For trap level >1 we just clear the CE bit
- * in the AFSR and return.
- */
-
- /* Our trap handling infrastructure allows us to preserve
- * two 64-bit values during etrap for arguments to
- * subsequent C code. Therefore we encode the information
- * as follows:
- *
- * value 1) Full 64-bits of AFAR
- * value 2) Low 33-bits of AFSR, then bits 33-->42
- * are UDBL error status and bits 43-->52
- * are UDBH error status
- */
- .align 64
- .globl cee_trap
-cee_trap:
- ldxa [%g0] ASI_AFSR, %g1 ! Read AFSR
- ldxa [%g0] ASI_AFAR, %g2 ! Read AFAR
- sllx %g1, 31, %g1 ! Clear reserved bits
- srlx %g1, 31, %g1 ! in AFSR
-
- /* NOTE: UltraSparc-I/II have high and low UDB error
- * registers, corresponding to the two UDB units
- * present on those chips. UltraSparc-IIi only
- * has a single UDB, called "SDB" in the manual.
- * For IIi the upper UDB register always reads
- * as zero so for our purposes things will just
- * work with the checks below.
- */
- ldxa [%g0] ASI_UDBL_ERROR_R, %g3 ! Read UDB-Low error status
- andcc %g3, (1 << 8), %g4 ! Check CE bit
- sllx %g3, (64 - 10), %g3 ! Clear reserved bits
- srlx %g3, (64 - 10), %g3 ! in UDB-Low error status
-
- sllx %g3, (33 + 0), %g3 ! Shift up to encoding area
- or %g1, %g3, %g1 ! Or it in
- be,pn %xcc, 1f ! Branch if CE bit was clear
- nop
- stxa %g4, [%g0] ASI_UDB_ERROR_W ! Clear CE sticky bit in UDBL
- membar #Sync ! Synchronize ASI stores
-1: mov 0x18, %g5 ! Addr of UDB-High error status
- ldxa [%g5] ASI_UDBH_ERROR_R, %g3 ! Read it
-
- andcc %g3, (1 << 8), %g4 ! Check CE bit
- sllx %g3, (64 - 10), %g3 ! Clear reserved bits
- srlx %g3, (64 - 10), %g3 ! in UDB-High error status
- sllx %g3, (33 + 10), %g3 ! Shift up to encoding area
- or %g1, %g3, %g1 ! Or it in
- be,pn %xcc, 1f ! Branch if CE bit was clear
- nop
- nop
-
- stxa %g4, [%g5] ASI_UDB_ERROR_W ! Clear CE sticky bit in UDBH
- membar #Sync ! Synchronize ASI stores
-1: mov 1, %g5 ! AFSR CE bit is
- sllx %g5, 20, %g5 ! bit 20
- stxa %g5, [%g0] ASI_AFSR ! Clear CE sticky bit in AFSR
- membar #Sync ! Synchronize ASI stores
- sllx %g2, (64 - 41), %g2 ! Clear reserved bits
- srlx %g2, (64 - 41), %g2 ! in latched AFAR
-
- andn %g2, 0x0f, %g2 ! Finish resv bit clearing
- mov %g1, %g4 ! Move AFSR+UDB* into save reg
- mov %g2, %g5 ! Move AFAR into save reg
- rdpr %pil, %g2
- wrpr %g0, 15, %pil
- ba,pt %xcc, etrap_irq
- rd %pc, %g7
- mov %l4, %o0
-
- mov %l5, %o1
- call cee_log
- add %sp, PTREGS_OFF, %o2
- ba,a,pt %xcc, rtrap_irq
-
/* Capture I/D/E-cache state into per-cpu error scoreboard.
*
* %g1: (TL>=0) ? 1 : 0
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index bba140d98b1..f21c993f885 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -540,6 +540,7 @@ void pcibios_bus_to_resource(struct pci_dev *pdev, struct resource *res,
pbm->parent->resource_adjust(pdev, res, root);
}
+EXPORT_SYMBOL(pcibios_bus_to_resource);
char * __init pcibios_setup(char *str)
{
diff --git a/arch/sparc64/kernel/pci_iommu.c b/arch/sparc64/kernel/pci_iommu.c
index 2803bc7c2c7..425c60cfea1 100644
--- a/arch/sparc64/kernel/pci_iommu.c
+++ b/arch/sparc64/kernel/pci_iommu.c
@@ -466,7 +466,7 @@ do_flush_sync:
if (!limit)
break;
udelay(1);
- membar("#LoadLoad");
+ rmb();
}
if (!limit)
printk(KERN_WARNING "pci_strbuf_flush: flushflag timeout "
diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c
index 07424b07593..66255434128 100644
--- a/arch/sparc64/kernel/process.c
+++ b/arch/sparc64/kernel/process.c
@@ -103,7 +103,7 @@ void cpu_idle(void)
* other cpus see our increasing idleness for the buddy
* redistribution algorithm. -DaveM
*/
- membar("#StoreStore | #StoreLoad");
+ membar_storeload_storestore();
}
}
diff --git a/arch/sparc64/kernel/sbus.c b/arch/sparc64/kernel/sbus.c
index 89f5e019f24..e09ddf92765 100644
--- a/arch/sparc64/kernel/sbus.c
+++ b/arch/sparc64/kernel/sbus.c
@@ -147,7 +147,7 @@ static void sbus_strbuf_flush(struct sbus_iommu *iommu, u32 base, unsigned long
if (!limit)
break;
udelay(1);
- membar("#LoadLoad");
+ rmb();
}
if (!limit)
printk(KERN_WARNING "sbus_strbuf_flush: flushflag timeout "
diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c
index b7e6a91952b..fbdfed3798d 100644
--- a/arch/sparc64/kernel/setup.c
+++ b/arch/sparc64/kernel/setup.c
@@ -33,7 +33,6 @@
#include <linux/cpu.h>
#include <linux/initrd.h>
-#include <asm/segment.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/processor.h>
diff --git a/arch/sparc64/kernel/signal.c b/arch/sparc64/kernel/signal.c
index b27934671c3..60f5dfabb1e 100644
--- a/arch/sparc64/kernel/signal.c
+++ b/arch/sparc64/kernel/signal.c
@@ -574,13 +574,12 @@ static inline void handle_signal(unsigned long signr, struct k_sigaction *ka,
{
setup_rt_frame(ka, regs, signr, oldset,
(ka->sa.sa_flags & SA_SIGINFO) ? info : NULL);
- if (!(ka->sa.sa_flags & SA_NOMASK)) {
- spin_lock_irq(&current->sighand->siglock);
- sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+ spin_lock_irq(&current->sighand->siglock);
+ sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+ if (!(ka->sa.sa_flags & SA_NOMASK))
sigaddset(&current->blocked,signr);
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
- }
+ recalc_sigpending();
+ spin_unlock_irq(&current->sighand->siglock);
}
static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
diff --git a/arch/sparc64/kernel/signal32.c b/arch/sparc64/kernel/signal32.c
index f28428f4170..aecccd0df1d 100644
--- a/arch/sparc64/kernel/signal32.c
+++ b/arch/sparc64/kernel/signal32.c
@@ -877,11 +877,12 @@ static void new_setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
unsigned long page = (unsigned long)
page_address(pte_page(*ptep));
- __asm__ __volatile__(
- " membar #StoreStore\n"
- " flush %0 + %1"
- : : "r" (page), "r" (address & (PAGE_SIZE - 1))
- : "memory");
+ wmb();
+ __asm__ __volatile__("flush %0 + %1"
+ : /* no outputs */
+ : "r" (page),
+ "r" (address & (PAGE_SIZE - 1))
+ : "memory");
}
pte_unmap(ptep);
preempt_enable();
@@ -1292,11 +1293,12 @@ static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
unsigned long page = (unsigned long)
page_address(pte_page(*ptep));
- __asm__ __volatile__(
- " membar #StoreStore\n"
- " flush %0 + %1"
- : : "r" (page), "r" (address & (PAGE_SIZE - 1))
- : "memory");
+ wmb();
+ __asm__ __volatile__("flush %0 + %1"
+ : /* no outputs */
+ : "r" (page),
+ "r" (address & (PAGE_SIZE - 1))
+ : "memory");
}
pte_unmap(ptep);
preempt_enable();
@@ -1325,13 +1327,12 @@ static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka,
else
setup_frame32(&ka->sa, regs, signr, oldset, info);
}
- if (!(ka->sa.sa_flags & SA_NOMASK)) {
- spin_lock_irq(&current->sighand->siglock);
- sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+ spin_lock_irq(&current->sighand->siglock);
+ sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+ if (!(ka->sa.sa_flags & SA_NOMASK))
sigaddset(&current->blocked,signr);
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
- }
+ recalc_sigpending();
+ spin_unlock_irq(&current->sighand->siglock);
}
static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs,
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index b9b42491e11..b4fc6a5462b 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -144,7 +144,7 @@ void __init smp_callin(void)
current->active_mm = &init_mm;
while (!cpu_isset(cpuid, smp_commenced_mask))
- membar("#LoadLoad");
+ rmb();
cpu_set(cpuid, cpu_online_map);
}
@@ -184,11 +184,11 @@ static inline long get_delta (long *rt, long *master)
for (i = 0; i < NUM_ITERS; i++) {
t0 = tick_ops->get_tick();
go[MASTER] = 1;
- membar("#StoreLoad");
+ membar_storeload();
while (!(tm = go[SLAVE]))
- membar("#LoadLoad");
+ rmb();
go[SLAVE] = 0;
- membar("#StoreStore");
+ wmb();
t1 = tick_ops->get_tick();
if (t1 - t0 < best_t1 - best_t0)
@@ -221,7 +221,7 @@ void smp_synchronize_tick_client(void)
go[MASTER] = 1;
while (go[MASTER])
- membar("#LoadLoad");
+ rmb();
local_irq_save(flags);
{
@@ -273,21 +273,21 @@ static void smp_synchronize_one_tick(int cpu)
/* wait for client to be ready */
while (!go[MASTER])
- membar("#LoadLoad");
+ rmb();
/* now let the client proceed into his loop */
go[MASTER] = 0;
- membar("#StoreLoad");
+ membar_storeload();
spin_lock_irqsave(&itc_sync_lock, flags);
{
for (i = 0; i < NUM_ROUNDS*NUM_ITERS; i++) {
while (!go[MASTER])
- membar("#LoadLoad");
+ rmb();
go[MASTER] = 0;
- membar("#StoreStore");
+ wmb();
go[SLAVE] = tick_ops->get_tick();
- membar("#StoreLoad");
+ membar_storeload();
}
}
spin_unlock_irqrestore(&itc_sync_lock, flags);
@@ -927,11 +927,11 @@ void smp_capture(void)
smp_processor_id());
#endif
penguins_are_doing_time = 1;
- membar("#StoreStore | #LoadStore");
+ membar_storestore_loadstore();
atomic_inc(&smp_capture_registry);
smp_cross_call(&xcall_capture, 0, 0, 0);
while (atomic_read(&smp_capture_registry) != ncpus)
- membar("#LoadLoad");
+ rmb();
#ifdef CAPTURE_DEBUG
printk("done\n");
#endif
@@ -947,7 +947,7 @@ void smp_release(void)
smp_processor_id());
#endif
penguins_are_doing_time = 0;
- membar("#StoreStore | #StoreLoad");
+ membar_storeload_storestore();
atomic_dec(&smp_capture_registry);
}
}
@@ -970,9 +970,9 @@ void smp_penguin_jailcell(int irq, struct pt_regs *regs)
save_alternate_globals(global_save);
prom_world(1);
atomic_inc(&smp_capture_registry);
- membar("#StoreLoad | #StoreStore");
+ membar_storeload_storestore();
while (penguins_are_doing_time)
- membar("#LoadLoad");
+ rmb();
restore_alternate_globals(global_save);
atomic_dec(&smp_capture_registry);
prom_world(0);
diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c
index 9202d925a9c..a3ea697f1ad 100644
--- a/arch/sparc64/kernel/sparc64_ksyms.c
+++ b/arch/sparc64/kernel/sparc64_ksyms.c
@@ -99,17 +99,6 @@ extern int __ashrdi3(int, int);
extern void dump_thread(struct pt_regs *, struct user *);
extern int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs);
-#if defined(CONFIG_SMP) && defined(CONFIG_DEBUG_SPINLOCK)
-extern void _do_spin_lock (spinlock_t *lock, char *str);
-extern void _do_spin_unlock (spinlock_t *lock);
-extern int _spin_trylock (spinlock_t *lock);
-extern void _do_read_lock(rwlock_t *rw, char *str);
-extern void _do_read_unlock(rwlock_t *rw, char *str);
-extern void _do_write_lock(rwlock_t *rw, char *str);
-extern void _do_write_unlock(rwlock_t *rw);
-extern int _do_write_trylock(rwlock_t *rw, char *str);
-#endif
-
extern unsigned long phys_base;
extern unsigned long pfn_base;
@@ -152,18 +141,6 @@ EXPORT_SYMBOL(_mcount);
EXPORT_SYMBOL(cpu_online_map);
EXPORT_SYMBOL(phys_cpu_present_map);
-/* Spinlock debugging library, optional. */
-#ifdef CONFIG_DEBUG_SPINLOCK
-EXPORT_SYMBOL(_do_spin_lock);
-EXPORT_SYMBOL(_do_spin_unlock);
-EXPORT_SYMBOL(_spin_trylock);
-EXPORT_SYMBOL(_do_read_lock);
-EXPORT_SYMBOL(_do_read_unlock);
-EXPORT_SYMBOL(_do_write_lock);
-EXPORT_SYMBOL(_do_write_unlock);
-EXPORT_SYMBOL(_do_write_trylock);
-#endif
-
EXPORT_SYMBOL(smp_call_function);
#endif /* CONFIG_SMP */
@@ -429,3 +406,12 @@ EXPORT_SYMBOL(xor_vis_4);
EXPORT_SYMBOL(xor_vis_5);
EXPORT_SYMBOL(prom_palette);
+
+/* memory barriers */
+EXPORT_SYMBOL(mb);
+EXPORT_SYMBOL(rmb);
+EXPORT_SYMBOL(wmb);
+EXPORT_SYMBOL(membar_storeload);
+EXPORT_SYMBOL(membar_storeload_storestore);
+EXPORT_SYMBOL(membar_storeload_loadload);
+EXPORT_SYMBOL(membar_storestore_loadstore);
diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
index 0c9e54b2f0c..b280b2ef674 100644
--- a/arch/sparc64/kernel/traps.c
+++ b/arch/sparc64/kernel/traps.c
@@ -33,6 +33,7 @@
#include <asm/dcu.h>
#include <asm/estate.h>
#include <asm/chafsr.h>
+#include <asm/sfafsr.h>
#include <asm/psrcompat.h>
#include <asm/processor.h>
#include <asm/timer.h>
@@ -143,8 +144,7 @@ void do_BUG(const char *file, int line)
}
#endif
-void instruction_access_exception(struct pt_regs *regs,
- unsigned long sfsr, unsigned long sfar)
+void spitfire_insn_access_exception(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar)
{
siginfo_t info;
@@ -153,8 +153,8 @@ void instruction_access_exception(struct pt_regs *regs,
return;
if (regs->tstate & TSTATE_PRIV) {
- printk("instruction_access_exception: SFSR[%016lx] SFAR[%016lx], going.\n",
- sfsr, sfar);
+ printk("spitfire_insn_access_exception: SFSR[%016lx] "
+ "SFAR[%016lx], going.\n", sfsr, sfar);
die_if_kernel("Iax", regs);
}
if (test_thread_flag(TIF_32BIT)) {
@@ -169,19 +169,17 @@ void instruction_access_exception(struct pt_regs *regs,
force_sig_info(SIGSEGV, &info, current);
}
-void instruction_access_exception_tl1(struct pt_regs *regs,
- unsigned long sfsr, unsigned long sfar)
+void spitfire_insn_access_exception_tl1(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar)
{
if (notify_die(DIE_TRAP_TL1, "instruction access exception tl1", regs,
0, 0x8, SIGTRAP) == NOTIFY_STOP)
return;
dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
- instruction_access_exception(regs, sfsr, sfar);
+ spitfire_insn_access_exception(regs, sfsr, sfar);
}
-void data_access_exception(struct pt_regs *regs,
- unsigned long sfsr, unsigned long sfar)
+void spitfire_data_access_exception(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar)
{
siginfo_t info;
@@ -207,8 +205,8 @@ void data_access_exception(struct pt_regs *regs,
return;
}
/* Shit... */
- printk("data_access_exception: SFSR[%016lx] SFAR[%016lx], going.\n",
- sfsr, sfar);
+ printk("spitfire_data_access_exception: SFSR[%016lx] "
+ "SFAR[%016lx], going.\n", sfsr, sfar);
die_if_kernel("Dax", regs);
}
@@ -220,6 +218,16 @@ void data_access_exception(struct pt_regs *regs,
force_sig_info(SIGSEGV, &info, current);
}
+void spitfire_data_access_exception_tl1(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar)
+{
+ if (notify_die(DIE_TRAP_TL1, "data access exception tl1", regs,
+ 0, 0x30, SIGTRAP) == NOTIFY_STOP)
+ return;
+
+ dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
+ spitfire_data_access_exception(regs, sfsr, sfar);
+}
+
#ifdef CONFIG_PCI
/* This is really pathetic... */
extern volatile int pci_poke_in_progress;
@@ -253,54 +261,13 @@ static void spitfire_clean_and_reenable_l1_caches(void)
: "memory");
}
-void do_iae(struct pt_regs *regs)
+static void spitfire_enable_estate_errors(void)
{
- siginfo_t info;
-
- spitfire_clean_and_reenable_l1_caches();
-
- if (notify_die(DIE_TRAP, "instruction access exception", regs,
- 0, 0x8, SIGTRAP) == NOTIFY_STOP)
- return;
-
- info.si_signo = SIGBUS;
- info.si_errno = 0;
- info.si_code = BUS_OBJERR;
- info.si_addr = (void *)0;
- info.si_trapno = 0;
- force_sig_info(SIGBUS, &info, current);
-}
-
-void do_dae(struct pt_regs *regs)
-{
- siginfo_t info;
-
-#ifdef CONFIG_PCI
- if (pci_poke_in_progress && pci_poke_cpu == smp_processor_id()) {
- spitfire_clean_and_reenable_l1_caches();
-
- pci_poke_faulted = 1;
-
- /* Why the fuck did they have to change this? */
- if (tlb_type == cheetah || tlb_type == cheetah_plus)
- regs->tpc += 4;
-
- regs->tnpc = regs->tpc + 4;
- return;
- }
-#endif
- spitfire_clean_and_reenable_l1_caches();
-
- if (notify_die(DIE_TRAP, "data access exception", regs,
- 0, 0x30, SIGTRAP) == NOTIFY_STOP)
- return;
-
- info.si_signo = SIGBUS;
- info.si_errno = 0;
- info.si_code = BUS_OBJERR;
- info.si_addr = (void *)0;
- info.si_trapno = 0;
- force_sig_info(SIGBUS, &info, current);
+ __asm__ __volatile__("stxa %0, [%%g0] %1\n\t"
+ "membar #Sync"
+ : /* no outputs */
+ : "r" (ESTATE_ERR_ALL),
+ "i" (ASI_ESTATE_ERROR_EN));
}
static char ecc_syndrome_table[] = {
@@ -338,65 +305,15 @@ static char ecc_syndrome_table[] = {
0x0b, 0x48, 0x48, 0x4b, 0x48, 0x4b, 0x4b, 0x4a
};
-/* cee_trap in entry.S encodes AFSR/UDBH/UDBL error status
- * in the following format. The AFAR is left as is, with
- * reserved bits cleared, and is a raw 40-bit physical
- * address.
- */
-#define CE_STATUS_UDBH_UE (1UL << (43 + 9))
-#define CE_STATUS_UDBH_CE (1UL << (43 + 8))
-#define CE_STATUS_UDBH_ESYNDR (0xffUL << 43)
-#define CE_STATUS_UDBH_SHIFT 43
-#define CE_STATUS_UDBL_UE (1UL << (33 + 9))
-#define CE_STATUS_UDBL_CE (1UL << (33 + 8))
-#define CE_STATUS_UDBL_ESYNDR (0xffUL << 33)
-#define CE_STATUS_UDBL_SHIFT 33
-#define CE_STATUS_AFSR_MASK (0x1ffffffffUL)
-#define CE_STATUS_AFSR_ME (1UL << 32)
-#define CE_STATUS_AFSR_PRIV (1UL << 31)
-#define CE_STATUS_AFSR_ISAP (1UL << 30)
-#define CE_STATUS_AFSR_ETP (1UL << 29)
-#define CE_STATUS_AFSR_IVUE (1UL << 28)
-#define CE_STATUS_AFSR_TO (1UL << 27)
-#define CE_STATUS_AFSR_BERR (1UL << 26)
-#define CE_STATUS_AFSR_LDP (1UL << 25)
-#define CE_STATUS_AFSR_CP (1UL << 24)
-#define CE_STATUS_AFSR_WP (1UL << 23)
-#define CE_STATUS_AFSR_EDP (1UL << 22)
-#define CE_STATUS_AFSR_UE (1UL << 21)
-#define CE_STATUS_AFSR_CE (1UL << 20)
-#define CE_STATUS_AFSR_ETS (0xfUL << 16)
-#define CE_STATUS_AFSR_ETS_SHIFT 16
-#define CE_STATUS_AFSR_PSYND (0xffffUL << 0)
-#define CE_STATUS_AFSR_PSYND_SHIFT 0
-
-/* Layout of Ecache TAG Parity Syndrome of AFSR */
-#define AFSR_ETSYNDROME_7_0 0x1UL /* E$-tag bus bits <7:0> */
-#define AFSR_ETSYNDROME_15_8 0x2UL /* E$-tag bus bits <15:8> */
-#define AFSR_ETSYNDROME_21_16 0x4UL /* E$-tag bus bits <21:16> */
-#define AFSR_ETSYNDROME_24_22 0x8UL /* E$-tag bus bits <24:22> */
-
static char *syndrome_unknown = "<Unknown>";
-asmlinkage void cee_log(unsigned long ce_status,
- unsigned long afar,
- struct pt_regs *regs)
+static void spitfire_log_udb_syndrome(unsigned long afar, unsigned long udbh, unsigned long udbl, unsigned long bit)
{
- char memmod_str[64];
- char *p;
- unsigned short scode, udb_reg;
+ unsigned short scode;
+ char memmod_str[64], *p;
- printk(KERN_WARNING "CPU[%d]: Correctable ECC Error "
- "AFSR[%lx] AFAR[%016lx] UDBL[%lx] UDBH[%lx]\n",
- smp_processor_id(),
- (ce_status & CE_STATUS_AFSR_MASK),
- afar,
- ((ce_status >> CE_STATUS_UDBL_SHIFT) & 0x3ffUL),
- ((ce_status >> CE_STATUS_UDBH_SHIFT) & 0x3ffUL));
-
- udb_reg = ((ce_status >> CE_STATUS_UDBL_SHIFT) & 0x3ffUL);
- if (udb_reg & (1 << 8)) {
- scode = ecc_syndrome_table[udb_reg & 0xff];
+ if (udbl & bit) {
+ scode = ecc_syndrome_table[udbl & 0xff];
if (prom_getunumber(scode, afar,
memmod_str, sizeof(memmod_str)) == -1)
p = syndrome_unknown;
@@ -407,9 +324,8 @@ asmlinkage void cee_log(unsigned long ce_status,
smp_processor_id(), scode, p);
}
- udb_reg = ((ce_status >> CE_STATUS_UDBH_SHIFT) & 0x3ffUL);
- if (udb_reg & (1 << 8)) {
- scode = ecc_syndrome_table[udb_reg & 0xff];
+ if (udbh & bit) {
+ scode = ecc_syndrome_table[udbh & 0xff];
if (prom_getunumber(scode, afar,
memmod_str, sizeof(memmod_str)) == -1)
p = syndrome_unknown;
@@ -419,6 +335,127 @@ asmlinkage void cee_log(unsigned long ce_status,
"Memory Module \"%s\"\n",
smp_processor_id(), scode, p);
}
+
+}
+
+static void spitfire_cee_log(unsigned long afsr, unsigned long afar, unsigned long udbh, unsigned long udbl, int tl1, struct pt_regs *regs)
+{
+
+ printk(KERN_WARNING "CPU[%d]: Correctable ECC Error "
+ "AFSR[%lx] AFAR[%016lx] UDBL[%lx] UDBH[%lx] TL>1[%d]\n",
+ smp_processor_id(), afsr, afar, udbl, udbh, tl1);
+
+ spitfire_log_udb_syndrome(afar, udbh, udbl, UDBE_CE);
+
+ /* We always log it, even if someone is listening for this
+ * trap.
+ */
+ notify_die(DIE_TRAP, "Correctable ECC Error", regs,
+ 0, TRAP_TYPE_CEE, SIGTRAP);
+
+ /* The Correctable ECC Error trap does not disable I/D caches. So
+ * we only have to restore the ESTATE Error Enable register.
+ */
+ spitfire_enable_estate_errors();
+}
+
+static void spitfire_ue_log(unsigned long afsr, unsigned long afar, unsigned long udbh, unsigned long udbl, unsigned long tt, int tl1, struct pt_regs *regs)
+{
+ siginfo_t info;
+
+ printk(KERN_WARNING "CPU[%d]: Uncorrectable Error AFSR[%lx] "
+ "AFAR[%lx] UDBL[%lx] UDBH[%ld] TT[%lx] TL>1[%d]\n",
+ smp_processor_id(), afsr, afar, udbl, udbh, tt, tl1);
+
+ /* XXX add more human friendly logging of the error status
+ * XXX as is implemented for cheetah
+ */
+
+ spitfire_log_udb_syndrome(afar, udbh, udbl, UDBE_UE);
+
+ /* We always log it, even if someone is listening for this
+ * trap.
+ */
+ notify_die(DIE_TRAP, "Uncorrectable Error", regs,
+ 0, tt, SIGTRAP);
+
+ if (regs->tstate & TSTATE_PRIV) {
+ if (tl1)
+ dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
+ die_if_kernel("UE", regs);
+ }
+
+ /* XXX need more intelligent processing here, such as is implemented
<