diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dma/ioatdma.c | 60 | ||||
| -rw-r--r-- | drivers/dma/ioatdma_io.h | 118 |
2 files changed, 28 insertions, 150 deletions
diff --git a/drivers/dma/ioatdma.c b/drivers/dma/ioatdma.c index 4e6afd7..2757070 100644 --- a/drivers/dma/ioatdma.c +++ b/drivers/dma/ioatdma.c @@ -32,7 +32,6 @@ #include <linux/delay.h> #include <linux/dma-mapping.h> #include "ioatdma.h" -#include "ioatdma_io.h" #include "ioatdma_registers.h" #include "ioatdma_hw.h" @@ -51,8 +50,8 @@ static int enumerate_dma_channels(struct ioat_device *device) int i; struct ioat_dma_chan *ioat_chan; - device->common.chancnt = ioatdma_read8(device, IOAT_CHANCNT_OFFSET); - xfercap_scale = ioatdma_read8(device, IOAT_XFERCAP_OFFSET); + device->common.chancnt = readb(device->reg_base + IOAT_CHANCNT_OFFSET); + xfercap_scale = readb(device->reg_base + IOAT_XFERCAP_OFFSET); xfercap = (xfercap_scale == 0 ? -1 : (1UL << xfercap_scale)); for (i = 0; i < device->common.chancnt; i++) { @@ -123,7 +122,7 @@ static int ioat_dma_alloc_chan_resources(struct dma_chan *chan) * In-use bit automatically set by reading chanctrl * If 0, we got it, if 1, someone else did */ - chanctrl = ioatdma_chan_read16(ioat_chan, IOAT_CHANCTRL_OFFSET); + chanctrl = readw(ioat_chan->reg_base + IOAT_CHANCTRL_OFFSET); if (chanctrl & IOAT_CHANCTRL_CHANNEL_IN_USE) return -EBUSY; @@ -132,12 +131,12 @@ static int ioat_dma_alloc_chan_resources(struct dma_chan *chan) IOAT_CHANCTRL_ERR_INT_EN | IOAT_CHANCTRL_ANY_ERR_ABORT_EN | IOAT_CHANCTRL_ERR_COMPLETION_EN; - ioatdma_chan_write16(ioat_chan, IOAT_CHANCTRL_OFFSET, chanctrl); + writew(chanctrl, ioat_chan->reg_base + IOAT_CHANCTRL_OFFSET); - chanerr = ioatdma_chan_read32(ioat_chan, IOAT_CHANERR_OFFSET); + chanerr = readl(ioat_chan->reg_base + IOAT_CHANERR_OFFSET); if (chanerr) { printk("IOAT: CHANERR = %x, clearing\n", chanerr); - ioatdma_chan_write32(ioat_chan, IOAT_CHANERR_OFFSET, chanerr); + writel(chanerr, ioat_chan->reg_base + IOAT_CHANERR_OFFSET); } /* Allocate descriptors */ @@ -161,10 +160,10 @@ static int ioat_dma_alloc_chan_resources(struct dma_chan *chan) &ioat_chan->completion_addr); memset(ioat_chan->completion_virt, 0, sizeof(*ioat_chan->completion_virt)); - ioatdma_chan_write32(ioat_chan, IOAT_CHANCMP_OFFSET_LOW, - ((u64) ioat_chan->completion_addr) & 0x00000000FFFFFFFF); - ioatdma_chan_write32(ioat_chan, IOAT_CHANCMP_OFFSET_HIGH, - ((u64) ioat_chan->completion_addr) >> 32); + writel(((u64) ioat_chan->completion_addr) & 0x00000000FFFFFFFF, + ioat_chan->reg_base + IOAT_CHANCMP_OFFSET_LOW); + writel(((u64) ioat_chan->completion_addr) >> 32, + ioat_chan->reg_base + IOAT_CHANCMP_OFFSET_HIGH); ioat_start_null_desc(ioat_chan); return i; @@ -182,7 +181,7 @@ static void ioat_dma_free_chan_resources(struct dma_chan *chan) ioat_dma_memcpy_cleanup(ioat_chan); - ioatdma_chan_write8(ioat_chan, IOAT_CHANCMD_OFFSET, IOAT_CHANCMD_RESET); + writeb(IOAT_CHANCMD_RESET, ioat_chan->reg_base + IOAT_CHANCMD_OFFSET); spin_lock_bh(&ioat_chan->desc_lock); list_for_each_entry_safe(desc, _desc, &ioat_chan->used_desc, node) { @@ -210,9 +209,9 @@ static void ioat_dma_free_chan_resources(struct dma_chan *chan) ioat_chan->last_completion = ioat_chan->completion_addr = 0; /* Tell hw the chan is free */ - chanctrl = ioatdma_chan_read16(ioat_chan, IOAT_CHANCTRL_OFFSET); + chanctrl = readw(ioat_chan->reg_base + IOAT_CHANCTRL_OFFSET); chanctrl &= ~IOAT_CHANCTRL_CHANNEL_IN_USE; - ioatdma_chan_write16(ioat_chan, IOAT_CHANCTRL_OFFSET, chanctrl); + writew(chanctrl, ioat_chan->reg_base + IOAT_CHANCTRL_OFFSET); } /** @@ -318,9 +317,8 @@ static dma_cookie_t do_ioat_dma_memcpy(struct ioat_dma_chan *ioat_chan, spin_unlock_bh(&ioat_chan->desc_lock); if (append) - ioatdma_chan_write8(ioat_chan, - IOAT_CHANCMD_OFFSET, - IOAT_CHANCMD_APPEND); + writeb(IOAT_CHANCMD_APPEND, + ioat_chan->reg_base + IOAT_CHANCMD_OFFSET); return cookie; } @@ -417,9 +415,8 @@ static void ioat_dma_memcpy_issue_pending(struct dma_chan *chan) if (ioat_chan->pending != 0) { ioat_chan->pending = 0; - ioatdma_chan_write8(ioat_chan, - IOAT_CHANCMD_OFFSET, - IOAT_CHANCMD_APPEND); + writeb(IOAT_CHANCMD_APPEND, + ioat_chan->reg_base + IOAT_CHANCMD_OFFSET); } } @@ -449,7 +446,7 @@ static void ioat_dma_memcpy_cleanup(struct ioat_dma_chan *chan) if ((chan->completion_virt->full & IOAT_CHANSTS_DMA_TRANSFER_STATUS) == IOAT_CHANSTS_DMA_TRANSFER_STATUS_HALTED) { printk("IOAT: Channel halted, chanerr = %x\n", - ioatdma_chan_read32(chan, IOAT_CHANERR_OFFSET)); + readl(chan->reg_base + IOAT_CHANERR_OFFSET)); /* TODO do something to salvage the situation */ } @@ -569,21 +566,21 @@ static irqreturn_t ioat_do_interrupt(int irq, void *data) unsigned long attnstatus; u8 intrctrl; - intrctrl = ioatdma_read8(instance, IOAT_INTRCTRL_OFFSET); + intrctrl = readb(instance->reg_base + IOAT_INTRCTRL_OFFSET); if (!(intrctrl & IOAT_INTRCTRL_MASTER_INT_EN)) return IRQ_NONE; if (!(intrctrl & IOAT_INTRCTRL_INT_STATUS)) { - ioatdma_write8(instance, IOAT_INTRCTRL_OFFSET, intrctrl); + writeb(intrctrl, instance->reg_base + IOAT_INTRCTRL_OFFSET); return IRQ_NONE; } - attnstatus = ioatdma_read32(instance, IOAT_ATTNSTATUS_OFFSET); + attnstatus = readl(instance->reg_base + IOAT_ATTNSTATUS_OFFSET); printk(KERN_ERR "ioatdma error: interrupt! status %lx\n", attnstatus); - ioatdma_write8(instance, IOAT_INTRCTRL_OFFSET, intrctrl); + writeb(intrctrl, instance->reg_base + IOAT_INTRCTRL_OFFSET); return IRQ_HANDLED; } @@ -612,14 +609,13 @@ static void ioat_start_null_desc(struct ioat_dma_chan *ioat_chan) spin_unlock_bh(&ioat_chan->desc_lock); #if (BITS_PER_LONG == 64) - ioatdma_chan_write64(ioat_chan, IOAT_CHAINADDR_OFFSET, desc->phys); + writeq(desc->phys, ioat_chan->reg_base + IOAT_CHAINADDR_OFFSET); #else - ioatdma_chan_write32(ioat_chan, - IOAT_CHAINADDR_OFFSET_LOW, - (u32) desc->phys); - ioatdma_chan_write32(ioat_chan, IOAT_CHAINADDR_OFFSET_HIGH, 0); + writel((u32) desc->phys, + ioat_chan->reg_base + IOAT_CHAINADDR_OFFSET_LOW); + writel(0, ioat_chan->reg_base + IOAT_CHAINADDR_OFFSET_HIGH); #endif - ioatdma_chan_write8(ioat_chan, IOAT_CHANCMD_OFFSET, IOAT_CHANCMD_START); + writeb(IOAT_CHANCMD_START, ioat_chan->reg_base + IOAT_CHANCMD_OFFSET); } /* @@ -748,7 +744,7 @@ static int __devinit ioat_probe(struct pci_dev *pdev, device->reg_base = reg_base; - ioatdma_write8(device, IOAT_INTRCTRL_OFFSET, IOAT_INTRCTRL_MASTER_INT_EN); + writeb(IOAT_INTRCTRL_MASTER_INT_EN, device->reg_base + IOAT_INTRCTRL_OFFSET); pci_set_master(pdev); INIT_LIST_HEAD(&device->common.channels); diff --git a/drivers/dma/ioatdma_io.h b/drivers/dma/ioatdma_io.h deleted file mode 100644 index c0b4bf6..0000000 --- a/drivers/dma/ioatdma_io.h +++ /dev/null @@ -1,118 +0,0 @@ -/* - * Copyright(c) 2004 - 2006 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 59 - * Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - * The full GNU General Public License is included in this distribution in the - * file called COPYING. - */ -#ifndef IOATDMA_IO_H -#define IOATDMA_IO_H - -#include <asm/io.h> - -/* - * device and per-channel MMIO register read and write functions - * this is a lot of anoying inline functions, but it's typesafe - */ - -static inline u8 ioatdma_read8(struct ioat_device *device, - unsigned int offset) -{ - return readb(device->reg_base + offset); -} - -static inline u16 ioatdma_read16(struct ioat_device *device, - unsigned int offset) -{ - return readw(device->reg_base + offset); -} - -static inline u32 ioatdma_read32(struct ioat_device *device, - unsigned int offset) -{ - return readl(device->reg_base + offset); -} - -static inline void ioatdma_write8(struct ioat_device *device, - unsigned int offset, u8 value) -{ - writeb(value, device->reg_base + offset); -} - -static inline void ioatdma_write16(struct ioat_device *device, - unsigned int offset, u16 value) -{ - writew(value, device->reg_base + offset); -} - -static inline void ioatdma_write32(struct ioat_device *device, - unsigned int offset, u32 value) -{ - writel(value, device->reg_base + offset); -} - -static inline u8 ioatdma_chan_read8(struct ioat_dma_chan *chan, - unsigned int offset) -{ - return readb(chan->reg_base + offset); -} - -static inline u16 ioatdma_chan_read16(struct ioat_dma_chan *chan, - unsigned int offset) -{ - return readw(chan->reg_base + offset); -} - -static inline u32 ioatdma_chan_read32(struct ioat_dma_chan *chan, - unsigned int offset) -{ - return readl(chan->reg_base + offset); -} - -static inline void ioatdma_chan_write8(struct ioat_dma_chan *chan, - unsigned int offset, u8 value) -{ - writeb(value, chan->reg_base + offset); -} - -static inline void ioatdma_chan_write16(struct ioat_dma_chan *chan, - unsigned int offset, u16 value) -{ - writew(value, chan->reg_base + offset); -} - -static inline void ioatdma_chan_write32(struct ioat_dma_chan *chan, - unsigned int offset, u32 value) -{ - writel(value, chan->reg_base + offset); -} - -#if (BITS_PER_LONG == 64) -static inline u64 ioatdma_chan_read64(struct ioat_dma_chan *chan, - unsigned int offset) -{ - return readq(chan->reg_base + offset); -} - -static inline void ioatdma_chan_write64(struct ioat_dma_chan *chan, - unsigned int offset, u64 value) -{ - writeq(value, chan->reg_base + offset); -} -#endif - -#endif /* IOATDMA_IO_H */ - |
