diff options
Diffstat (limited to 'include/linux/soc')
-rw-r--r-- | include/linux/soc/ixp4xx/qmgr.h | 127 |
1 files changed, 7 insertions, 120 deletions
diff --git a/include/linux/soc/ixp4xx/qmgr.h b/include/linux/soc/ixp4xx/qmgr.h index 4de8da536dbb..bed8ee94fa57 100644 --- a/include/linux/soc/ixp4xx/qmgr.h +++ b/include/linux/soc/ixp4xx/qmgr.h @@ -57,6 +57,13 @@ struct qmgr_regs { u32 sram[2048]; /* 0x2000 - 0x3FFF - config and buffer */ }; +void qmgr_put_entry(unsigned int queue, u32 val); +u32 qmgr_get_entry(unsigned int queue); +int qmgr_stat_empty(unsigned int queue); +int qmgr_stat_below_low_watermark(unsigned int queue); +int qmgr_stat_full(unsigned int queue); +int qmgr_stat_overflow(unsigned int queue); +void qmgr_release_queue(unsigned int queue); void qmgr_set_irq(unsigned int queue, int src, void (*handler)(void *pdev), void *pdev); void qmgr_enable_irq(unsigned int queue); @@ -81,124 +88,4 @@ int __qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */, nearly_full_watermark) #endif -void qmgr_release_queue(unsigned int queue); - - -static inline void qmgr_put_entry(unsigned int queue, u32 val) -{ - struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; -#if DEBUG_QMGR - BUG_ON(!qmgr_queue_descs[queue]); /* not yet requested */ - - printk(KERN_DEBUG "Queue %s(%i) put %X\n", - qmgr_queue_descs[queue], queue, val); -#endif - __raw_writel(val, &qmgr_regs->acc[queue][0]); -} - -static inline u32 qmgr_get_entry(unsigned int queue) -{ - u32 val; - const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; - val = __raw_readl(&qmgr_regs->acc[queue][0]); -#if DEBUG_QMGR - BUG_ON(!qmgr_queue_descs[queue]); /* not yet requested */ - - printk(KERN_DEBUG "Queue %s(%i) get %X\n", - qmgr_queue_descs[queue], queue, val); -#endif - return val; -} - -static inline int __qmgr_get_stat1(unsigned int queue) -{ - const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; - return (__raw_readl(&qmgr_regs->stat1[queue >> 3]) - >> ((queue & 7) << 2)) & 0xF; -} - -static inline int __qmgr_get_stat2(unsigned int queue) -{ - const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; - BUG_ON(queue >= HALF_QUEUES); - return (__raw_readl(&qmgr_regs->stat2[queue >> 4]) - >> ((queue & 0xF) << 1)) & 0x3; -} - -/** - * qmgr_stat_empty() - checks if a hardware queue is empty - * @queue: queue number - * - * Returns non-zero value if the queue is empty. - */ -static inline int qmgr_stat_empty(unsigned int queue) -{ - BUG_ON(queue >= HALF_QUEUES); - return __qmgr_get_stat1(queue) & QUEUE_STAT1_EMPTY; -} - -/** - * qmgr_stat_below_low_watermark() - checks if a queue is below low watermark - * @queue: queue number - * - * Returns non-zero value if the queue is below low watermark. - */ -static inline int qmgr_stat_below_low_watermark(unsigned int queue) -{ - const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; - if (queue >= HALF_QUEUES) - return (__raw_readl(&qmgr_regs->statne_h) >> - (queue - HALF_QUEUES)) & 0x01; - return __qmgr_get_stat1(queue) & QUEUE_STAT1_NEARLY_EMPTY; -} - -/** - * qmgr_stat_above_high_watermark() - checks if a queue is above high watermark - * @queue: queue number - * - * Returns non-zero value if the queue is above high watermark - */ -static inline int qmgr_stat_above_high_watermark(unsigned int queue) -{ - BUG_ON(queue >= HALF_QUEUES); - return __qmgr_get_stat1(queue) & QUEUE_STAT1_NEARLY_FULL; -} - -/** - * qmgr_stat_full() - checks if a hardware queue is full - * @queue: queue number - * - * Returns non-zero value if the queue is full. - */ -static inline int qmgr_stat_full(unsigned int queue) -{ - const struct qmgr_regs __iomem *qmgr_regs = IXP4XX_QMGR_BASE_VIRT; - if (queue >= HALF_QUEUES) - return (__raw_readl(&qmgr_regs->statf_h) >> - (queue - HALF_QUEUES)) & 0x01; - return __qmgr_get_stat1(queue) & QUEUE_STAT1_FULL; -} - -/** - * qmgr_stat_underflow() - checks if a hardware queue experienced underflow - * @queue: queue number - * - * Returns non-zero value if the queue experienced underflow. - */ -static inline int qmgr_stat_underflow(unsigned int queue) -{ - return __qmgr_get_stat2(queue) & QUEUE_STAT2_UNDERFLOW; -} - -/** - * qmgr_stat_overflow() - checks if a hardware queue experienced overflow - * @queue: queue number - * - * Returns non-zero value if the queue experienced overflow. - */ -static inline int qmgr_stat_overflow(unsigned int queue) -{ - return __qmgr_get_stat2(queue) & QUEUE_STAT2_OVERFLOW; -} - #endif |