[POWERPC] Remove iSeries_vio_dev
It was only being used to carry around dma_iommu_ops and vio_iommu_table which we can use directly instead. This also means that vio_bus_device doesn't need to refer to them either. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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73be7d5267
Коммит
1670b2b271
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@ -49,11 +49,8 @@ static struct vio_dev vio_bus_device = { /* fake "parent" device */
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};
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#ifdef CONFIG_PPC_ISERIES
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struct device *iSeries_vio_dev = &vio_bus_device.dev;
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EXPORT_SYMBOL(iSeries_vio_dev);
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static struct iommu_table veth_iommu_table;
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static struct iommu_table vio_iommu_table;
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struct iommu_table vio_iommu_table;
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static void __init iommu_vio_init(void)
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{
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@ -66,8 +63,6 @@ static void __init iommu_vio_init(void)
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printk("Virtual Bus VETH TCE table failed.\n");
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if (!iommu_init_table(&vio_iommu_table, -1))
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printk("Virtual Bus VIO TCE table failed.\n");
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vio_bus_device.dev.archdata.dma_ops = &dma_iommu_ops;
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vio_bus_device.dev.archdata.dma_data = &vio_iommu_table;
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}
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#else
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static void __init iommu_vio_init(void)
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@ -28,6 +28,7 @@
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#include <linux/dma-mapping.h>
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#include <linux/list.h>
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#include <linux/pci.h>
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#include <linux/module.h>
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#include <asm/iommu.h>
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#include <asm/tce.h>
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@ -36,6 +37,7 @@
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#include <asm/prom.h>
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#include <asm/pci-bridge.h>
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#include <asm/iseries/hv_call_xm.h>
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#include <asm/iseries/hv_call_event.h>
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#include <asm/iseries/iommu.h>
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static void tce_build_iSeries(struct iommu_table *tbl, long index, long npages,
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@ -189,6 +191,34 @@ void iommu_devnode_init_iSeries(struct pci_dev *pdev, struct device_node *dn)
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}
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#endif
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extern struct iommu_table vio_iommu_table;
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void *iseries_hv_alloc(size_t size, dma_addr_t *dma_handle, gfp_t flag)
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{
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return iommu_alloc_coherent(&vio_iommu_table, size, dma_handle,
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DMA_32BIT_MASK, flag, -1);
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}
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EXPORT_SYMBOL_GPL(iseries_hv_alloc);
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void iseries_hv_free(size_t size, void *vaddr, dma_addr_t dma_handle)
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{
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iommu_free_coherent(&vio_iommu_table, size, vaddr, dma_handle);
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}
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EXPORT_SYMBOL_GPL(iseries_hv_free);
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dma_addr_t iseries_hv_map(void *vaddr, size_t size,
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enum dma_data_direction direction)
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{
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return iommu_map_single(&vio_iommu_table, vaddr, size,
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DMA_32BIT_MASK, direction);
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}
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void iseries_hv_unmap(dma_addr_t dma_handle, size_t size,
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enum dma_data_direction direction)
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{
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iommu_unmap_single(&vio_iommu_table, dma_handle, size, direction);
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}
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void iommu_init_early_iSeries(void)
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{
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ppc_md.tce_build = tce_build_iSeries;
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@ -39,9 +39,9 @@
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#include <asm/paca.h>
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#include <asm/abs_addr.h>
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#include <asm/firmware.h>
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#include <asm/iseries/vio.h>
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#include <asm/iseries/mf.h>
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#include <asm/iseries/hv_lp_config.h>
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#include <asm/iseries/hv_lp_event.h>
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#include <asm/iseries/it_lp_queue.h>
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#include "setup.h"
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@ -870,8 +870,7 @@ static int proc_mf_dump_cmdline(char *page, char **start, off_t off,
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if ((off + count) > 256)
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count = 256 - off;
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dma_addr = dma_map_single(iSeries_vio_dev, page, off + count,
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DMA_FROM_DEVICE);
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dma_addr = iseries_hv_map(page, off + count, DMA_FROM_DEVICE);
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if (dma_mapping_error(dma_addr))
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return -ENOMEM;
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memset(page, 0, off + count);
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@ -883,8 +882,7 @@ static int proc_mf_dump_cmdline(char *page, char **start, off_t off,
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vsp_cmd.sub_data.kern.length = off + count;
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mb();
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rc = signal_vsp_instruction(&vsp_cmd);
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dma_unmap_single(iSeries_vio_dev, dma_addr, off + count,
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DMA_FROM_DEVICE);
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iseries_hv_unmap(dma_addr, off + count, DMA_FROM_DEVICE);
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if (rc)
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return rc;
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if (vsp_cmd.result_code != 0)
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@ -919,8 +917,7 @@ static int mf_getVmlinuxChunk(char *buffer, int *size, int offset, u64 side)
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int len = *size;
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dma_addr_t dma_addr;
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dma_addr = dma_map_single(iSeries_vio_dev, buffer, len,
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DMA_FROM_DEVICE);
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dma_addr = iseries_hv_map(buffer, len, DMA_FROM_DEVICE);
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memset(buffer, 0, len);
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memset(&vsp_cmd, 0, sizeof(vsp_cmd));
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vsp_cmd.cmd = 32;
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@ -938,7 +935,7 @@ static int mf_getVmlinuxChunk(char *buffer, int *size, int offset, u64 side)
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rc = -ENOMEM;
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}
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dma_unmap_single(iSeries_vio_dev, dma_addr, len, DMA_FROM_DEVICE);
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iseries_hv_unmap(dma_addr, len, DMA_FROM_DEVICE);
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return rc;
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}
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@ -1149,8 +1146,7 @@ static int proc_mf_change_cmdline(struct file *file, const char __user *buffer,
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goto out;
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dma_addr = 0;
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page = dma_alloc_coherent(iSeries_vio_dev, count, &dma_addr,
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GFP_ATOMIC);
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page = iseries_hv_alloc(count, &dma_addr, GFP_ATOMIC);
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ret = -ENOMEM;
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if (page == NULL)
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goto out;
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@ -1170,7 +1166,7 @@ static int proc_mf_change_cmdline(struct file *file, const char __user *buffer,
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ret = count;
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out_free:
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dma_free_coherent(iSeries_vio_dev, count, page, dma_addr);
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iseries_hv_free(count, page, dma_addr);
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out:
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return ret;
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}
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@ -1190,8 +1186,7 @@ static ssize_t proc_mf_change_vmlinux(struct file *file,
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goto out;
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dma_addr = 0;
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page = dma_alloc_coherent(iSeries_vio_dev, count, &dma_addr,
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GFP_ATOMIC);
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page = iseries_hv_alloc(count, &dma_addr, GFP_ATOMIC);
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rc = -ENOMEM;
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if (page == NULL) {
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printk(KERN_ERR "mf.c: couldn't allocate memory to set vmlinux chunk\n");
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@ -1219,7 +1214,7 @@ static ssize_t proc_mf_change_vmlinux(struct file *file,
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*ppos += count;
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rc = count;
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out_free:
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dma_free_coherent(iSeries_vio_dev, count, page, dma_addr);
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iseries_hv_free(count, page, dma_addr);
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out:
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return rc;
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}
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@ -124,8 +124,7 @@ static int proc_viopath_show(struct seq_file *m, void *v)
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if (!buf)
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return 0;
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handle = dma_map_single(iSeries_vio_dev, buf, HW_PAGE_SIZE,
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DMA_FROM_DEVICE);
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handle = iseries_hv_map(buf, HW_PAGE_SIZE, DMA_FROM_DEVICE);
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hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp,
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HvLpEvent_Type_VirtualIo,
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@ -146,8 +145,7 @@ static int proc_viopath_show(struct seq_file *m, void *v)
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buf[HW_PAGE_SIZE-1] = '\0';
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seq_printf(m, "%s", buf);
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dma_unmap_single(iSeries_vio_dev, handle, HW_PAGE_SIZE,
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DMA_FROM_DEVICE);
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iseries_hv_unmap(handle, HW_PAGE_SIZE, DMA_FROM_DEVICE);
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kfree(buf);
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seq_printf(m, "AVAILABLE_VETH=%x\n", vlanMap);
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@ -220,7 +220,7 @@ static void __init get_viocd_info(void)
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struct cdrom_info *viocd_unitinfo;
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dma_addr_t unitinfo_dmaaddr;
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viocd_unitinfo = dma_alloc_coherent(iSeries_vio_dev,
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viocd_unitinfo = iseries_hv_alloc(
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sizeof(*viocd_unitinfo) * VIOCD_MAX_CD,
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&unitinfo_dmaaddr, GFP_ATOMIC);
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if (viocd_unitinfo == NULL) {
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@ -262,8 +262,7 @@ static void __init get_viocd_info(void)
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}
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error_ret:
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dma_free_coherent(iSeries_vio_dev,
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sizeof(*viocd_unitinfo) * VIOCD_MAX_CD,
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iseries_hv_free(sizeof(*viocd_unitinfo) * VIOCD_MAX_CD,
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viocd_unitinfo, unitinfo_dmaaddr);
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}
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@ -392,8 +392,8 @@ static int get_viotape_info(void)
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if (op == NULL)
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return -ENOMEM;
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viotape_unitinfo = dma_alloc_coherent(iSeries_vio_dev, len,
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&viotape_unitinfo_token, GFP_ATOMIC);
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viotape_unitinfo = iseries_hv_alloc(len, &viotape_unitinfo_token,
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GFP_ATOMIC);
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if (viotape_unitinfo == NULL) {
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free_op_struct(op);
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return -ENOMEM;
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@ -1103,8 +1103,7 @@ static void __exit viotap_exit(void)
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class_destroy(tape_class);
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unregister_chrdev(VIOTAPE_MAJOR, "viotape");
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if (viotape_unitinfo)
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dma_free_coherent(iSeries_vio_dev,
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sizeof(viotape_unitinfo[0]) * VIOTAPE_MAX_TAPE,
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iseries_hv_free(sizeof(viotape_unitinfo[0]) * VIOTAPE_MAX_TAPE,
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viotape_unitinfo, viotape_unitinfo_token);
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viopath_close(viopath_hostLp, viomajorsubtype_tape, VIOTAPE_MAXREQ + 2);
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vio_clearHandler(viomajorsubtype_tape);
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@ -21,6 +21,9 @@
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#ifndef _ASM_POWERPC_ISERIES_HV_CALL_EVENT_H
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#define _ASM_POWERPC_ISERIES_HV_CALL_EVENT_H
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#include <linux/types.h>
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#include <linux/dma-mapping.h>
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#include <asm/iseries/hv_call_sc.h>
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#include <asm/iseries/hv_types.h>
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#include <asm/abs_addr.h>
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@ -113,6 +116,13 @@ static inline HvLpEvent_Rc HvCallEvent_signalLpEventFast(HvLpIndex targetLp,
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eventData3, eventData4, eventData5);
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}
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extern void *iseries_hv_alloc(size_t size, dma_addr_t *dma_handle, gfp_t flag);
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extern void iseries_hv_free(size_t size, void *vaddr, dma_addr_t dma_handle);
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extern dma_addr_t iseries_hv_map(void *vaddr, size_t size,
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enum dma_data_direction direction);
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extern void iseries_hv_unmap(dma_addr_t dma_handle, size_t size,
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enum dma_data_direction direction);
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static inline HvLpEvent_Rc HvCallEvent_ackLpEvent(struct HvLpEvent *event)
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{
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return HvCall1(HvCallEventAckLpEvent, virt_to_abs(event));
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@ -150,8 +150,4 @@ enum viochar_rc {
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viochar_rc_ebusy = 1
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};
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struct device;
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extern struct device *iSeries_vio_dev;
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#endif /* _ASM_POWERPC_ISERIES_VIO_H */
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