From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761495AbZFNMFH (ORCPT ); Sun, 14 Jun 2009 08:05:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758829AbZFNMBm (ORCPT ); Sun, 14 Jun 2009 08:01:42 -0400 Received: from smtp.gentoo.org ([140.211.166.183]:52687 "EHLO smtp.gentoo.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758587AbZFNMBk (ORCPT ); Sun, 14 Jun 2009 08:01:40 -0400 From: Mike Frysinger To: linux-kernel@vger.kernel.org Cc: uclinux-dist-devel@blackfin.uclinux.org Subject: [PATCH 14/17] Blackfin: convert irq/process to asm-generic Date: Sun, 14 Jun 2009 08:01:15 -0400 Message-Id: <1244980878-2124-15-git-send-email-vapier@gentoo.org> X-Mailer: git-send-email 1.6.3.1 In-Reply-To: <1244980878-2124-1-git-send-email-vapier@gentoo.org> References: <1244980878-2124-1-git-send-email-vapier@gentoo.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Mike Frysinger --- arch/blackfin/include/asm/hardirq.h | 36 ++------------------------------ arch/blackfin/include/asm/irq.h | 5 +--- arch/blackfin/include/asm/processor.h | 35 ++----------------------------- arch/blackfin/kernel/process.c | 23 +++++++++++++++++++++ 4 files changed, 30 insertions(+), 69 deletions(-) diff --git a/arch/blackfin/include/asm/hardirq.h b/arch/blackfin/include/asm/hardirq.h index 717181a..5a64084 100644 --- a/arch/blackfin/include/asm/hardirq.h +++ b/arch/blackfin/include/asm/hardirq.h @@ -1,47 +1,17 @@ #ifndef __BFIN_HARDIRQ_H #define __BFIN_HARDIRQ_H -#include -#include -#include - -typedef struct { - unsigned int __softirq_pending; - unsigned int __syscall_count; - struct task_struct *__ksoftirqd_task; -} ____cacheline_aligned irq_cpustat_t; - -#include /* Standard mappings for irq_cpustat_t above */ - -/* - * We put the hardirq and softirq counter into the preemption - * counter. The bitmask has the following meaning: - * - * - bits 0-7 are the preemption count (max preemption depth: 256) - * - bits 8-15 are the softirq count (max # of softirqs: 256) - * - bits 16-23 are the hardirq count (max # of hardirqs: 256) - * - * - ( bit 26 is the PREEMPT_ACTIVE flag. ) - * - * PREEMPT_MASK: 0x000000ff - * HARDIRQ_MASK: 0x0000ff00 - * SOFTIRQ_MASK: 0x00ff0000 - */ - #if NR_IRQS > 256 #define HARDIRQ_BITS 9 #else #define HARDIRQ_BITS 8 #endif -#ifdef NR_IRQS -# if (1 << HARDIRQ_BITS) < NR_IRQS -# error HARDIRQ_BITS is too low! -# endif -#endif - #define __ARCH_IRQ_EXIT_IRQS_DISABLED 1 extern void ack_bad_irq(unsigned int irq); +#define ack_bad_irq ack_bad_irq + +#include #endif diff --git a/arch/blackfin/include/asm/irq.h b/arch/blackfin/include/asm/irq.h index 400bdd5..9a7f63a 100644 --- a/arch/blackfin/include/asm/irq.h +++ b/arch/blackfin/include/asm/irq.h @@ -45,9 +45,6 @@ : "d" (bfin_irq_flags) \ ) -static inline int irq_canonicalize(int irq) -{ - return irq; -} +#include #endif /* _BFIN_IRQ_H_ */ diff --git a/arch/blackfin/include/asm/processor.h b/arch/blackfin/include/asm/processor.h index 3040415..d0be99b 100644 --- a/arch/blackfin/include/asm/processor.h +++ b/arch/blackfin/include/asm/processor.h @@ -7,9 +7,8 @@ */ #define current_text_addr() ({ __label__ _l; _l: &&_l;}) +#include #include -#include -#include static inline unsigned long rdusp(void) { @@ -59,36 +58,8 @@ struct thread_struct { PS_S, 0, 0 \ } -/* - * Do necessary setup to start up a newly executed thread. - * - * pass the data segment into user programs if it exists, - * it can't hurt anything as far as I can tell - */ -#ifndef CONFIG_SMP -#define start_thread(_regs, _pc, _usp) \ -do { \ - set_fs(USER_DS); \ - (_regs)->pc = (_pc); \ - if (current->mm) \ - (_regs)->p5 = current->mm->start_data; \ - task_thread_info(current)->l1_task_info.stack_start \ - = (void *)current->mm->context.stack_start; \ - task_thread_info(current)->l1_task_info.lowest_sp = (void *)(_usp); \ - memcpy(L1_SCRATCH_TASK_INFO, &task_thread_info(current)->l1_task_info, \ - sizeof(*L1_SCRATCH_TASK_INFO)); \ - wrusp(_usp); \ -} while(0) -#else -#define start_thread(_regs, _pc, _usp) \ -do { \ - set_fs(USER_DS); \ - (_regs)->pc = (_pc); \ - if (current->mm) \ - (_regs)->p5 = current->mm->start_data; \ - wrusp(_usp); \ -} while (0) -#endif +extern void start_thread(struct pt_regs *regs, unsigned long new_ip, + unsigned long new_sp); /* Forward declaration, a strange C thing */ struct task_struct; diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c index 30d0843..3e1d86e 100644 --- a/arch/blackfin/kernel/process.c +++ b/arch/blackfin/kernel/process.c @@ -160,6 +160,29 @@ pid_t kernel_thread(int (*fn) (void *), void *arg, unsigned long flags) } EXPORT_SYMBOL(kernel_thread); +/* + * Do necessary setup to start up a newly executed thread. + * + * pass the data segment into user programs if it exists, + * it can't hurt anything as far as I can tell + */ +void start_thread(struct pt_regs *regs, unsigned long new_ip, unsigned long new_sp) +{ + set_fs(USER_DS); + regs->pc = new_ip; + if (current->mm) + regs->p5 = current->mm->start_data; +#ifdef CONFIG_SMP + task_thread_info(current)->l1_task_info.stack_start = + (void *)current->mm->context.stack_start; + task_thread_info(current)->l1_task_info.lowest_sp = (void *)new_sp; + memcpy(L1_SCRATCH_TASK_INFO, &task_thread_info(current)->l1_task_info, + sizeof(*L1_SCRATCH_TASK_INFO)); +#endif + wrusp(new_sp); +} +EXPORT_SYMBOL_GPL(start_thread); + void flush_thread(void) { } -- 1.6.3.1