From f22ed71cd60210d2f476986c0266004e4db45f34 Mon Sep 17 00:00:00 2001 From: Daniel Hellstrom Date: Thu, 8 Sep 2011 03:11:15 +0000 Subject: sparc32,leon: SRMMU MMU Table probe fix The LEON MMU Model (SRMMU) does not implement MMu Table probing in hardware, instead it is implemented in software. However the software implementation does not return the PTE as it should which always results in INVALID entires and the PROM mappings are not inherited as they should during startup. The following patch removes the masking of the PTE. Signed-off-by: Daniel Hellstrom Signed-off-by: David S. Miller --- arch/sparc/include/asm/pgtsrmmu.h | 2 +- arch/sparc/mm/leon_mm.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h index 1407c07bdad..f6ae2b2b687 100644 --- a/arch/sparc/include/asm/pgtsrmmu.h +++ b/arch/sparc/include/asm/pgtsrmmu.h @@ -280,7 +280,7 @@ static inline unsigned long srmmu_hwprobe(unsigned long vaddr) return retval; } #else -#define srmmu_hwprobe(addr) (srmmu_swprobe(addr, 0) & SRMMU_PTE_PMASK) +#define srmmu_hwprobe(addr) srmmu_swprobe(addr, 0) #endif static inline int diff --git a/arch/sparc/mm/leon_mm.c b/arch/sparc/mm/leon_mm.c index e485a680499..13c2169822a 100644 --- a/arch/sparc/mm/leon_mm.c +++ b/arch/sparc/mm/leon_mm.c @@ -162,7 +162,7 @@ ready: printk(KERN_INFO "swprobe: padde %x\n", paddr_calc); if (paddr) *paddr = paddr_calc; - return paddrbase; + return pte; } void leon_flush_icache_all(void) -- cgit v1.2.3 From faddf598f0ba98ba329bb83acad51aea40313c2a Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Thu, 11 Aug 2011 14:57:02 +0100 Subject: sparc: Use set_current_blocked() As described in e6fa16ab ("signal: sigprocmask() should do retarget_shared_pending()") the modification of current->blocked is incorrect as we need to check whether the signal we're about to block is pending in the shared queue. Cc: Oleg Nesterov Cc: "David S. Miller" Signed-off-by: Matt Fleming Signed-off-by: David S. Miller --- arch/sparc/kernel/signal32.c | 19 ++++++------------- arch/sparc/kernel/signal_32.c | 30 ++++++++++++------------------ arch/sparc/kernel/signal_64.c | 30 ++++++++++++------------------ 3 files changed, 30 insertions(+), 49 deletions(-) (limited to 'arch') diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c index 1ba95aff5d5..3b3a3fc3ce0 100644 --- a/arch/sparc/kernel/signal32.c +++ b/arch/sparc/kernel/signal32.c @@ -273,10 +273,7 @@ void do_sigreturn32(struct pt_regs *regs) case 1: set.sig[0] = seta[0] + (((long)seta[1]) << 32); } sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); return; segv: @@ -377,10 +374,7 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs) case 1: set.sig[0] = seta.sig[0] + (((long)seta.sig[1]) << 32); } sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); return; segv: force_sig(SIGSEGV, current); @@ -782,6 +776,7 @@ static inline int handle_signal32(unsigned long signr, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset, struct pt_regs *regs) { + sigset_t blocked; int err; if (ka->sa.sa_flags & SA_SIGINFO) @@ -792,12 +787,10 @@ static inline int handle_signal32(unsigned long signr, struct k_sigaction *ka, if (err) return err; - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); + sigorsets(&blocked, ¤t->blocked, &ka->sa.sa_mask); if (!(ka->sa.sa_flags & SA_NOMASK)) - sigaddset(¤t->blocked,signr); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + sigaddset(&blocked, signr); + set_current_blocked(&blocked); tracehook_signal_handler(signr, info, ka, regs, 0); diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c index 04ede8f04ad..030087a63fb 100644 --- a/arch/sparc/kernel/signal_32.c +++ b/arch/sparc/kernel/signal_32.c @@ -62,12 +62,13 @@ struct rt_signal_frame { static int _sigpause_common(old_sigset_t set) { - set &= _BLOCKABLE; - spin_lock_irq(¤t->sighand->siglock); + sigset_t blocked; + current->saved_sigmask = current->blocked; - siginitset(¤t->blocked, set); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + + set &= _BLOCKABLE; + siginitset(&blocked, set); + set_current_blocked(&blocked); current->state = TASK_INTERRUPTIBLE; schedule(); @@ -139,10 +140,7 @@ asmlinkage void do_sigreturn(struct pt_regs *regs) goto segv_and_exit; sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); return; segv_and_exit: @@ -209,10 +207,7 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs) } sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); return; segv: force_sig(SIGSEGV, current); @@ -470,6 +465,7 @@ static inline int handle_signal(unsigned long signr, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset, struct pt_regs *regs) { + sigset_t blocked; int err; if (ka->sa.sa_flags & SA_SIGINFO) @@ -480,12 +476,10 @@ handle_signal(unsigned long signr, struct k_sigaction *ka, if (err) return err; - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); + sigorsets(&blocked, ¤t->blocked, &ka->sa.sa_mask); if (!(ka->sa.sa_flags & SA_NOMASK)) - sigaddset(¤t->blocked, signr); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + sigaddset(&blocked, signr); + set_current_blocked(&blocked); tracehook_signal_handler(signr, info, ka, regs, 0); diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c index 47509df3b89..f895c407648 100644 --- a/arch/sparc/kernel/signal_64.c +++ b/arch/sparc/kernel/signal_64.c @@ -70,10 +70,7 @@ asmlinkage void sparc64_set_context(struct pt_regs *regs) goto do_sigsegv; } sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); } if (test_thread_flag(TIF_32BIT)) { pc &= 0xffffffff; @@ -242,12 +239,13 @@ struct rt_signal_frame { static long _sigpause_common(old_sigset_t set) { - set &= _BLOCKABLE; - spin_lock_irq(¤t->sighand->siglock); + sigset_t blocked; + current->saved_sigmask = current->blocked; - siginitset(¤t->blocked, set); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + + set &= _BLOCKABLE; + siginitset(&blocked, set); + set_current_blocked(&blocked); current->state = TASK_INTERRUPTIBLE; schedule(); @@ -327,10 +325,7 @@ void do_rt_sigreturn(struct pt_regs *regs) pt_regs_clear_syscall(regs); sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); return; segv: force_sig(SIGSEGV, current); @@ -484,18 +479,17 @@ static inline int handle_signal(unsigned long signr, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset, struct pt_regs *regs) { + sigset_t blocked; int err; err = setup_rt_frame(ka, regs, signr, oldset, (ka->sa.sa_flags & SA_SIGINFO) ? info : NULL); if (err) return err; - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); + sigorsets(&blocked, ¤t->blocked, &ka->sa.sa_mask); if (!(ka->sa.sa_flags & SA_NOMASK)) - sigaddset(¤t->blocked,signr); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + sigaddset(&blocked, signr); + set_current_blocked(&blocked); tracehook_signal_handler(signr, info, ka, regs, 0); -- cgit v1.2.3 From 27f20dca01b00eac445e5193565dd185548e7e34 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 12 Oct 2011 12:27:35 -0700 Subject: sparc: Avoid calling sigprocmask() Use set_current_blocked() instead. Signed-off-by: David S. Miller --- arch/sparc/kernel/signal32.c | 2 +- arch/sparc/kernel/signal_32.c | 2 +- arch/sparc/kernel/signal_64.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c index 3b3a3fc3ce0..2caa556db86 100644 --- a/arch/sparc/kernel/signal32.c +++ b/arch/sparc/kernel/signal32.c @@ -874,7 +874,7 @@ void do_signal32(sigset_t *oldset, struct pt_regs * regs, */ if (current_thread_info()->status & TS_RESTORE_SIGMASK) { current_thread_info()->status &= ~TS_RESTORE_SIGMASK; - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + set_current_blocked(¤t->saved_sigmask); } } diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c index 030087a63fb..8ce247ac04c 100644 --- a/arch/sparc/kernel/signal_32.c +++ b/arch/sparc/kernel/signal_32.c @@ -575,7 +575,7 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) */ if (test_thread_flag(TIF_RESTORE_SIGMASK)) { clear_thread_flag(TIF_RESTORE_SIGMASK); - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + set_current_blocked(¤t->saved_sigmask); } } diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c index f895c407648..a2b81598d90 100644 --- a/arch/sparc/kernel/signal_64.c +++ b/arch/sparc/kernel/signal_64.c @@ -595,7 +595,7 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) */ if (current_thread_info()->status & TS_RESTORE_SIGMASK) { current_thread_info()->status &= ~TS_RESTORE_SIGMASK; - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + set_current_blocked(¤t->saved_sigmask); } } -- cgit v1.2.3 From aad4564498dcb0aad769a79e5e2aa9a661dfb51f Mon Sep 17 00:00:00 2001 From: Kjetil Oftedal Date: Wed, 19 Oct 2011 16:20:50 -0700 Subject: sparc: Add alignment flag to PCI expansion resources Currently no type of alignment is specified for PCI expansion roms while parsing the openfirmware tree. This causes calls to pci_map_rom() to fail. IORESOURCE_SIZEALIGN is the default alignment used for rom resouces in pci/probe.c, and has been verified to work with various cards on a ultra 10. Signed-off-By: Kjetil Oftedal Signed-off-by: David S. Miller --- arch/sparc/kernel/pci.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index 1e94f946570..8aa0d440858 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -230,7 +230,8 @@ static void pci_parse_of_addrs(struct platform_device *op, res = &dev->resource[(i - PCI_BASE_ADDRESS_0) >> 2]; } else if (i == dev->rom_base_reg) { res = &dev->resource[PCI_ROM_RESOURCE]; - flags |= IORESOURCE_READONLY | IORESOURCE_CACHEABLE; + flags |= IORESOURCE_READONLY | IORESOURCE_CACHEABLE + | IORESOURCE_SIZEALIGN; } else { printk(KERN_ERR "PCI: bad cfg reg num 0x%x\n", i); continue; -- cgit v1.2.3