From 80b1973659949fbdcbfe9e086e2370313a9f1288 Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Tue, 11 Aug 2015 08:48:38 -0700 Subject: [PATCH] dmaengine: ioatdma: move all sysfs related code Move and fixup all sysfs related bits to sysfs.c file. Signed-off-by: Dave Jiang Acked-by: Dan Williams Signed-off-by: Vinod Koul --- drivers/dma/ioat/Makefile | 2 +- drivers/dma/ioat/dma.c | 108 ------------------------------ drivers/dma/ioat/sysfs.c | 135 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 136 insertions(+), 109 deletions(-) create mode 100644 drivers/dma/ioat/sysfs.c diff --git a/drivers/dma/ioat/Makefile b/drivers/dma/ioat/Makefile index 655df9188387..d2555f4881d7 100644 --- a/drivers/dma/ioat/Makefile +++ b/drivers/dma/ioat/Makefile @@ -1,2 +1,2 @@ obj-$(CONFIG_INTEL_IOATDMA) += ioatdma.o -ioatdma-y := pci.o dma.o dma_v3.o dca.o +ioatdma-y := pci.o dma.o dma_v3.o dca.o sysfs.o diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c index 02b5c04dea8a..1746f7b4c3b4 100644 --- a/drivers/dma/ioat/dma.c +++ b/drivers/dma/ioat/dma.c @@ -491,84 +491,6 @@ int ioat_register(struct ioatdma_device *ioat_dma) return err; } -static ssize_t cap_show(struct dma_chan *c, char *page) -{ - struct dma_device *dma = c->device; - - return sprintf(page, "copy%s%s%s%s%s\n", - dma_has_cap(DMA_PQ, dma->cap_mask) ? " pq" : "", - dma_has_cap(DMA_PQ_VAL, dma->cap_mask) ? " pq_val" : "", - dma_has_cap(DMA_XOR, dma->cap_mask) ? " xor" : "", - dma_has_cap(DMA_XOR_VAL, dma->cap_mask) ? " xor_val" : "", - dma_has_cap(DMA_INTERRUPT, dma->cap_mask) ? " intr" : ""); - -} -struct ioat_sysfs_entry ioat_cap_attr = __ATTR_RO(cap); - -static ssize_t version_show(struct dma_chan *c, char *page) -{ - struct dma_device *dma = c->device; - struct ioatdma_device *ioat_dma = to_ioatdma_device(dma); - - return sprintf(page, "%d.%d\n", - ioat_dma->version >> 4, ioat_dma->version & 0xf); -} -struct ioat_sysfs_entry ioat_version_attr = __ATTR_RO(version); - -static ssize_t -ioat_attr_show(struct kobject *kobj, struct attribute *attr, char *page) -{ - struct ioat_sysfs_entry *entry; - struct ioatdma_chan *ioat_chan; - - entry = container_of(attr, struct ioat_sysfs_entry, attr); - ioat_chan = container_of(kobj, struct ioatdma_chan, kobj); - - if (!entry->show) - return -EIO; - return entry->show(&ioat_chan->dma_chan, page); -} - -const struct sysfs_ops ioat_sysfs_ops = { - .show = ioat_attr_show, -}; - -void ioat_kobject_add(struct ioatdma_device *ioat_dma, struct kobj_type *type) -{ - struct dma_device *dma = &ioat_dma->dma_dev; - struct dma_chan *c; - - list_for_each_entry(c, &dma->channels, device_node) { - struct ioatdma_chan *ioat_chan = to_ioat_chan(c); - struct kobject *parent = &c->dev->device.kobj; - int err; - - err = kobject_init_and_add(&ioat_chan->kobj, type, - parent, "quickdata"); - if (err) { - dev_warn(to_dev(ioat_chan), - "sysfs init error (%d), continuing...\n", err); - kobject_put(&ioat_chan->kobj); - set_bit(IOAT_KOBJ_INIT_FAIL, &ioat_chan->state); - } - } -} - -void ioat_kobject_del(struct ioatdma_device *ioat_dma) -{ - struct dma_device *dma = &ioat_dma->dma_dev; - struct dma_chan *c; - - list_for_each_entry(c, &dma->channels, device_node) { - struct ioatdma_chan *ioat_chan = to_ioat_chan(c); - - if (!test_bit(IOAT_KOBJ_INIT_FAIL, &ioat_chan->state)) { - kobject_del(&ioat_chan->kobj); - kobject_put(&ioat_chan->kobj); - } - } -} - void ioat_dma_remove(struct ioatdma_device *ioat_dma) { struct dma_device *dma = &ioat_dma->dma_dev; @@ -1202,33 +1124,3 @@ ioat_dma_prep_memcpy_lock(struct dma_chan *c, dma_addr_t dma_dest, return &desc->txd; } - -static ssize_t ring_size_show(struct dma_chan *c, char *page) -{ - struct ioatdma_chan *ioat_chan = to_ioat_chan(c); - - return sprintf(page, "%d\n", (1 << ioat_chan->alloc_order) & ~1); -} -static struct ioat_sysfs_entry ring_size_attr = __ATTR_RO(ring_size); - -static ssize_t ring_active_show(struct dma_chan *c, char *page) -{ - struct ioatdma_chan *ioat_chan = to_ioat_chan(c); - - /* ...taken outside the lock, no need to be precise */ - return sprintf(page, "%d\n", ioat_ring_active(ioat_chan)); -} -static struct ioat_sysfs_entry ring_active_attr = __ATTR_RO(ring_active); - -static struct attribute *ioat_attrs[] = { - &ring_size_attr.attr, - &ring_active_attr.attr, - &ioat_cap_attr.attr, - &ioat_version_attr.attr, - NULL, -}; - -struct kobj_type ioat_ktype = { - .sysfs_ops = &ioat_sysfs_ops, - .default_attrs = ioat_attrs, -}; diff --git a/drivers/dma/ioat/sysfs.c b/drivers/dma/ioat/sysfs.c new file mode 100644 index 000000000000..cb4a857ee21b --- /dev/null +++ b/drivers/dma/ioat/sysfs.c @@ -0,0 +1,135 @@ +/* + * Intel I/OAT DMA Linux driver + * Copyright(c) 2004 - 2015 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * 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. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + */ + +#include +#include +#include +#include +#include "dma.h" +#include "registers.h" +#include "hw.h" + +#include "../dmaengine.h" + +static ssize_t cap_show(struct dma_chan *c, char *page) +{ + struct dma_device *dma = c->device; + + return sprintf(page, "copy%s%s%s%s%s\n", + dma_has_cap(DMA_PQ, dma->cap_mask) ? " pq" : "", + dma_has_cap(DMA_PQ_VAL, dma->cap_mask) ? " pq_val" : "", + dma_has_cap(DMA_XOR, dma->cap_mask) ? " xor" : "", + dma_has_cap(DMA_XOR_VAL, dma->cap_mask) ? " xor_val" : "", + dma_has_cap(DMA_INTERRUPT, dma->cap_mask) ? " intr" : ""); + +} +struct ioat_sysfs_entry ioat_cap_attr = __ATTR_RO(cap); + +static ssize_t version_show(struct dma_chan *c, char *page) +{ + struct dma_device *dma = c->device; + struct ioatdma_device *ioat_dma = to_ioatdma_device(dma); + + return sprintf(page, "%d.%d\n", + ioat_dma->version >> 4, ioat_dma->version & 0xf); +} +struct ioat_sysfs_entry ioat_version_attr = __ATTR_RO(version); + +static ssize_t +ioat_attr_show(struct kobject *kobj, struct attribute *attr, char *page) +{ + struct ioat_sysfs_entry *entry; + struct ioatdma_chan *ioat_chan; + + entry = container_of(attr, struct ioat_sysfs_entry, attr); + ioat_chan = container_of(kobj, struct ioatdma_chan, kobj); + + if (!entry->show) + return -EIO; + return entry->show(&ioat_chan->dma_chan, page); +} + +const struct sysfs_ops ioat_sysfs_ops = { + .show = ioat_attr_show, +}; + +void ioat_kobject_add(struct ioatdma_device *ioat_dma, struct kobj_type *type) +{ + struct dma_device *dma = &ioat_dma->dma_dev; + struct dma_chan *c; + + list_for_each_entry(c, &dma->channels, device_node) { + struct ioatdma_chan *ioat_chan = to_ioat_chan(c); + struct kobject *parent = &c->dev->device.kobj; + int err; + + err = kobject_init_and_add(&ioat_chan->kobj, type, + parent, "quickdata"); + if (err) { + dev_warn(to_dev(ioat_chan), + "sysfs init error (%d), continuing...\n", err); + kobject_put(&ioat_chan->kobj); + set_bit(IOAT_KOBJ_INIT_FAIL, &ioat_chan->state); + } + } +} + +void ioat_kobject_del(struct ioatdma_device *ioat_dma) +{ + struct dma_device *dma = &ioat_dma->dma_dev; + struct dma_chan *c; + + list_for_each_entry(c, &dma->channels, device_node) { + struct ioatdma_chan *ioat_chan = to_ioat_chan(c); + + if (!test_bit(IOAT_KOBJ_INIT_FAIL, &ioat_chan->state)) { + kobject_del(&ioat_chan->kobj); + kobject_put(&ioat_chan->kobj); + } + } +} + +static ssize_t ring_size_show(struct dma_chan *c, char *page) +{ + struct ioatdma_chan *ioat_chan = to_ioat_chan(c); + + return sprintf(page, "%d\n", (1 << ioat_chan->alloc_order) & ~1); +} +static struct ioat_sysfs_entry ring_size_attr = __ATTR_RO(ring_size); + +static ssize_t ring_active_show(struct dma_chan *c, char *page) +{ + struct ioatdma_chan *ioat_chan = to_ioat_chan(c); + + /* ...taken outside the lock, no need to be precise */ + return sprintf(page, "%d\n", ioat_ring_active(ioat_chan)); +} +static struct ioat_sysfs_entry ring_active_attr = __ATTR_RO(ring_active); + +static struct attribute *ioat_attrs[] = { + &ring_size_attr.attr, + &ring_active_attr.attr, + &ioat_cap_attr.attr, + &ioat_version_attr.attr, + NULL, +}; + +struct kobj_type ioat_ktype = { + .sysfs_ops = &ioat_sysfs_ops, + .default_attrs = ioat_attrs, +};