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-rw-r--r--drivers/dma/dw_dmac.c4
-rw-r--r--drivers/dma/edma.c4
-rw-r--r--drivers/dma/fsldma.c4
-rw-r--r--drivers/dma/imx-dma.c137
-rw-r--r--drivers/dma/imx-sdma.c1
-rw-r--r--drivers/dma/intel_mid_dma.c4
-rw-r--r--drivers/dma/ioat/dca.c23
-rw-r--r--drivers/dma/ioat/pci.c2
-rw-r--r--drivers/dma/iop-adma.c10
-rw-r--r--drivers/dma/ipu/ipu_idmac.c3
-rw-r--r--drivers/dma/ipu/ipu_irq.c3
-rw-r--r--drivers/dma/mmp_pdma.c6
-rw-r--r--drivers/dma/mmp_tdma.c6
-rw-r--r--drivers/dma/mpc512x_dma.c4
-rw-r--r--drivers/dma/mv_xor.c431
-rw-r--r--drivers/dma/mv_xor.h36
-rw-r--r--drivers/dma/omap-dma.c5
-rw-r--r--drivers/dma/pch_dma.c4
-rw-r--r--drivers/dma/pl330.c2
-rw-r--r--drivers/dma/ppc4xx/adma.c4
-rw-r--r--drivers/dma/sa11x0-dma.c6
-rw-r--r--drivers/dma/sh/shdma.c6
-rw-r--r--drivers/dma/sirf-dma.c4
-rw-r--r--drivers/dma/ste_dma40.c3
-rw-r--r--drivers/dma/ste_dma40_ll.c2
-rw-r--r--drivers/dma/tegra20-apb-dma.c4
-rw-r--r--drivers/dma/timb_dma.c2
27 files changed, 404 insertions, 316 deletions
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index c4b0eb3cde8..8f0b111af4d 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -1462,7 +1462,7 @@ static void dw_dma_off(struct dw_dma *dw)
dw->chan[i].initialized = false;
}
-static int __devinit dw_probe(struct platform_device *pdev)
+static int dw_probe(struct platform_device *pdev)
{
struct dw_dma_platform_data *pdata;
struct resource *io;
@@ -1700,7 +1700,7 @@ MODULE_DEVICE_TABLE(of, dw_dma_id_table);
#endif
static struct platform_driver dw_driver = {
- .remove = __devexit_p(dw_remove),
+ .remove = dw_remove,
.shutdown = dw_shutdown,
.driver = {
.name = "dw_dmac",
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 05aea3ce850..232b4583ae9 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -545,7 +545,7 @@ static void edma_dma_init(struct edma_cc *ecc, struct dma_device *dma,
INIT_LIST_HEAD(&dma->channels);
}
-static int __devinit edma_probe(struct platform_device *pdev)
+static int edma_probe(struct platform_device *pdev)
{
struct edma_cc *ecc;
int ret;
@@ -598,7 +598,7 @@ static int __devexit edma_remove(struct platform_device *pdev)
static struct platform_driver edma_driver = {
.probe = edma_probe,
- .remove = __devexit_p(edma_remove),
+ .remove = edma_remove,
.driver = {
.name = "edma-dma-engine",
.owner = THIS_MODULE,
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index 094437b9d82..4fc2980556a 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -1221,7 +1221,7 @@ out_unwind:
/* OpenFirmware Subsystem */
/*----------------------------------------------------------------------------*/
-static int __devinit fsl_dma_chan_probe(struct fsldma_device *fdev,
+static int fsl_dma_chan_probe(struct fsldma_device *fdev,
struct device_node *node, u32 feature, const char *compatible)
{
struct fsldma_chan *chan;
@@ -1324,7 +1324,7 @@ static void fsl_dma_chan_remove(struct fsldma_chan *chan)
kfree(chan);
}
-static int __devinit fsldma_of_probe(struct platform_device *op)
+static int fsldma_of_probe(struct platform_device *op)
{
struct fsldma_device *fdev;
struct device_node *child;
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index 7d9554cc497..dbf0e6f8de8 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -29,7 +29,6 @@
#include <asm/irq.h>
#include <linux/platform_data/dma-imx.h>
-#include <mach/hardware.h>
#include "dmaengine.h"
#define IMXDMA_MAX_CHAN_DESCRIPTORS 16
@@ -167,6 +166,12 @@ struct imxdma_channel {
int slot_2d;
};
+enum imx_dma_type {
+ IMX1_DMA,
+ IMX21_DMA,
+ IMX27_DMA,
+};
+
struct imxdma_engine {
struct device *dev;
struct device_dma_parameters dma_parms;
@@ -177,7 +182,39 @@ struct imxdma_engine {
spinlock_t lock;
struct imx_dma_2d_config slots_2d[IMX_DMA_2D_SLOTS];
struct imxdma_channel channel[IMX_DMA_CHANNELS];
+ enum imx_dma_type devtype;
+};
+
+static struct platform_device_id imx_dma_devtype[] = {
+ {
+ .name = "imx1-dma",
+ .driver_data = IMX1_DMA,
+ }, {
+ .name = "imx21-dma",
+ .driver_data = IMX21_DMA,
+ }, {
+ .name = "imx27-dma",
+ .driver_data = IMX27_DMA,
+ }, {
+ /* sentinel */
+ }
};
+MODULE_DEVICE_TABLE(platform, imx_dma_devtype);
+
+static inline int is_imx1_dma(struct imxdma_engine *imxdma)
+{
+ return imxdma->devtype == IMX1_DMA;
+}
+
+static inline int is_imx21_dma(struct imxdma_engine *imxdma)
+{
+ return imxdma->devtype == IMX21_DMA;
+}
+
+static inline int is_imx27_dma(struct imxdma_engine *imxdma)
+{
+ return imxdma->devtype == IMX27_DMA;
+}
static struct imxdma_channel *to_imxdma_chan(struct dma_chan *chan)
{
@@ -212,7 +249,9 @@ static unsigned imx_dmav1_readl(struct imxdma_engine *imxdma, unsigned offset)
static int imxdma_hw_chain(struct imxdma_channel *imxdmac)
{
- if (cpu_is_mx27())
+ struct imxdma_engine *imxdma = imxdmac->imxdma;
+
+ if (is_imx27_dma(imxdma))
return imxdmac->hw_chaining;
else
return 0;
@@ -267,7 +306,7 @@ static void imxdma_enable_hw(struct imxdma_desc *d)
imx_dmav1_writel(imxdma, imx_dmav1_readl(imxdma, DMA_CCR(channel)) |
CCR_CEN | CCR_ACRPT, DMA_CCR(channel));
- if ((cpu_is_mx21() || cpu_is_mx27()) &&
+ if (!is_imx1_dma(imxdma) &&
d->sg && imxdma_hw_chain(imxdmac)) {
d->sg = sg_next(d->sg);
if (d->sg) {
@@ -436,7 +475,7 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id)
struct imxdma_engine *imxdma = dev_id;
int i, disr;
- if (cpu_is_mx21() || cpu_is_mx27())
+ if (!is_imx1_dma(imxdma))
imxdma_err_handler(irq, dev_id);
disr = imx_dmav1_readl(imxdma, DMA_DISR);
@@ -961,35 +1000,32 @@ static void imxdma_issue_pending(struct dma_chan *chan)
static int __init imxdma_probe(struct platform_device *pdev)
{
struct imxdma_engine *imxdma;
+ struct resource *res;
int ret, i;
+ int irq, irq_err;
-
- imxdma = kzalloc(sizeof(*imxdma), GFP_KERNEL);
+ imxdma = devm_kzalloc(&pdev->dev, sizeof(*imxdma), GFP_KERNEL);
if (!imxdma)
return -ENOMEM;
- if (cpu_is_mx1()) {
- imxdma->base = MX1_IO_ADDRESS(MX1_DMA_BASE_ADDR);
- } else if (cpu_is_mx21()) {
- imxdma->base = MX21_IO_ADDRESS(MX21_DMA_BASE_ADDR);
- } else if (cpu_is_mx27()) {
- imxdma->base = MX27_IO_ADDRESS(MX27_DMA_BASE_ADDR);
- } else {
- kfree(imxdma);
- return 0;
- }
+ imxdma->devtype = pdev->id_entry->driver_data;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ imxdma->base = devm_request_and_ioremap(&pdev->dev, res);
+ if (!imxdma->base)
+ return -EADDRNOTAVAIL;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
imxdma->dma_ipg = devm_clk_get(&pdev->dev, "ipg");
- if (IS_ERR(imxdma->dma_ipg)) {
- ret = PTR_ERR(imxdma->dma_ipg);
- goto err_clk;
- }
+ if (IS_ERR(imxdma->dma_ipg))
+ return PTR_ERR(imxdma->dma_ipg);
imxdma->dma_ahb = devm_clk_get(&pdev->dev, "ahb");
- if (IS_ERR(imxdma->dma_ahb)) {
- ret = PTR_ERR(imxdma->dma_ahb);
- goto err_clk;
- }
+ if (IS_ERR(imxdma->dma_ahb))
+ return PTR_ERR(imxdma->dma_ahb);
clk_prepare_enable(imxdma->dma_ipg);
clk_prepare_enable(imxdma->dma_ahb);
@@ -997,18 +1033,25 @@ static int __init imxdma_probe(struct platform_device *pdev)
/* reset DMA module */
imx_dmav1_writel(imxdma, DCR_DRST, DMA_DCR);
- if (cpu_is_mx1()) {
- ret = request_irq(MX1_DMA_INT, dma_irq_handler, 0, "DMA", imxdma);
+ if (is_imx1_dma(imxdma)) {
+ ret = devm_request_irq(&pdev->dev, irq,
+ dma_irq_handler, 0, "DMA", imxdma);
if (ret) {
dev_warn(imxdma->dev, "Can't register IRQ for DMA\n");
- goto err_enable;
+ goto err;
+ }
+
+ irq_err = platform_get_irq(pdev, 1);
+ if (irq_err < 0) {
+ ret = irq_err;
+ goto err;
}
- ret = request_irq(MX1_DMA_ERR, imxdma_err_handler, 0, "DMA", imxdma);
+ ret = devm_request_irq(&pdev->dev, irq_err,
+ imxdma_err_handler, 0, "DMA", imxdma);
if (ret) {
dev_warn(imxdma->dev, "Can't register ERRIRQ for DMA\n");
- free_irq(MX1_DMA_INT, NULL);
- goto err_enable;
+ goto err;
}
}
@@ -1038,14 +1081,14 @@ static int __init imxdma_probe(struct platform_device *pdev)
for (i = 0; i < IMX_DMA_CHANNELS; i++) {
struct imxdma_channel *imxdmac = &imxdma->channel[i];
- if (cpu_is_mx21() || cpu_is_mx27()) {
- ret = request_irq(MX2x_INT_DMACH0 + i,
+ if (!is_imx1_dma(imxdma)) {
+ ret = devm_request_irq(&pdev->dev, irq + i,
dma_irq_handler, 0, "DMA", imxdma);
if (ret) {
dev_warn(imxdma->dev, "Can't register IRQ %d "
"for DMA channel %d\n",
- MX2x_INT_DMACH0 + i, i);
- goto err_init;
+ irq + i, i);
+ goto err;
}
init_timer(&imxdmac->watchdog);
imxdmac->watchdog.function = &imxdma_watchdog;
@@ -1091,46 +1134,25 @@ static int __init imxdma_probe(struct platform_device *pdev)
ret = dma_async_device_register(&imxdma->dma_device);
if (ret) {
dev_err(&pdev->dev, "unable to register\n");
- goto err_init;
+ goto err;
}
return 0;
-err_init:
-
- if (cpu_is_mx21() || cpu_is_mx27()) {
- while (--i >= 0)
- free_irq(MX2x_INT_DMACH0 + i, NULL);
- } else if cpu_is_mx1() {
- free_irq(MX1_DMA_INT, NULL);
- free_irq(MX1_DMA_ERR, NULL);
- }
-err_enable:
+err:
clk_disable_unprepare(imxdma->dma_ipg);
clk_disable_unprepare(imxdma->dma_ahb);
-err_clk:
- kfree(imxdma);
return ret;
}
static int __exit imxdma_remove(struct platform_device *pdev)
{
struct imxdma_engine *imxdma = platform_get_drvdata(pdev);
- int i;
dma_async_device_unregister(&imxdma->dma_device);
- if (cpu_is_mx21() || cpu_is_mx27()) {
- for (i = 0; i < IMX_DMA_CHANNELS; i++)
- free_irq(MX2x_INT_DMACH0 + i, NULL);
- } else if cpu_is_mx1() {
- free_irq(MX1_DMA_INT, NULL);
- free_irq(MX1_DMA_ERR, NULL);
- }
-
clk_disable_unprepare(imxdma->dma_ipg);
clk_disable_unprepare(imxdma->dma_ahb);
- kfree(imxdma);
return 0;
}
@@ -1139,6 +1161,7 @@ static struct platform_driver imxdma_driver = {
.driver = {
.name = "imx-dma",
},
+ .id_table = imx_dma_devtype,
.remove = __exit_p(imxdma_remove),
};
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index c099ca0846f..f082aa3a918 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -40,7 +40,6 @@
#include <asm/irq.h>
#include <linux/platform_data/dma-imx-sdma.h>
#include <linux/platform_data/dma-imx.h>
-#include <mach/hardware.h>
#include "dmaengine.h"
diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c
index 02b21d7d38e..bc764afacd9 100644
--- a/drivers/dma/intel_mid_dma.c
+++ b/drivers/dma/intel_mid_dma.c
@@ -1225,7 +1225,7 @@ static void middma_shutdown(struct pci_dev *pdev)
* Initialize the PCI device, map BARs, query driver data.
* Call setup_dma to complete contoller and chan initilzation
*/
-static int __devinit intel_mid_dma_probe(struct pci_dev *pdev,
+static int intel_mid_dma_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
struct middma_device *device;
@@ -1432,7 +1432,7 @@ static struct pci_driver intel_mid_dma_pci_driver = {
.name = "Intel MID DMA",
.id_table = intel_mid_dma_ids,
.probe = intel_mid_dma_probe,
- .remove = __devexit_p(intel_mid_dma_remove),
+ .remove = intel_mid_dma_remove,
#ifdef CONFIG_PM
.driver = {
.pm = &intel_mid_dma_pm,
diff --git a/drivers/dma/ioat/dca.c b/drivers/dma/ioat/dca.c
index abd9038e06b..d6668071bd0 100644
--- a/drivers/dma/ioat/dca.c
+++ b/drivers/dma/ioat/dca.c
@@ -604,6 +604,23 @@ static int ioat3_dca_count_dca_slots(void *iobase, u16 dca_offset)
return slots;
}
+static inline int dca3_tag_map_invalid(u8 *tag_map)
+{
+ /*
+ * If the tag map is not programmed by the BIOS the default is:
+ * 0x80 0x80 0x80 0x80 0x80 0x00 0x00 0x00
+ *
+ * This an invalid map and will result in only 2 possible tags
+ * 0x1F and 0x00. 0x00 is an invalid DCA tag so we know that
+ * this entire definition is invalid.
+ */
+ return ((tag_map[0] == DCA_TAG_MAP_VALID) &&
+ (tag_map[1] == DCA_TAG_MAP_VALID) &&
+ (tag_map[2] == DCA_TAG_MAP_VALID) &&
+ (tag_map[3] == DCA_TAG_MAP_VALID) &&
+ (tag_map[4] == DCA_TAG_MAP_VALID));
+}
+
struct dca_provider * __devinit
ioat3_dca_init(struct pci_dev *pdev, void __iomem *iobase)
{
@@ -674,6 +691,12 @@ ioat3_dca_init(struct pci_dev *pdev, void __iomem *iobase)
ioatdca->tag_map[i] = bit & DCA_TAG_MAP_MASK;
}
+ if (dca3_tag_map_invalid(ioatdca->tag_map)) {
+ dev_err(&pdev->dev, "APICID_TAG_MAP set incorrectly by BIOS, disabling DCA\n");
+ free_dca_provider(dca);
+ return NULL;
+ }
+
err = register_dca_provider(dca, &pdev->dev);
if (err) {
free_dca_provider(dca);
diff --git a/drivers/dma/ioat/pci.c b/drivers/dma/ioat/pci.c
index c0573061b45..bfa9a3536e0 100644
--- a/drivers/dma/ioat/pci.c
+++ b/drivers/dma/ioat/pci.c
@@ -125,7 +125,7 @@ static struct pci_driver ioat_pci_driver = {
.name = DRV_NAME,
.id_table = ioat_pci_tbl,
.probe = ioat_pci_probe,
- .remove = __devexit_p(ioat_remove),
+ .remove = ioat_remove,
};
static struct ioatdma_device *
diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index 79e3eba2970..9072e173b86 100644
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -968,7 +968,7 @@ static void iop_adma_issue_pending(struct dma_chan *chan)
*/
#define IOP_ADMA_TEST_SIZE 2000
-static int __devinit iop_adma_memcpy_self_test(struct iop_adma_device *device)
+static int iop_adma_memcpy_self_test(struct iop_adma_device *device)
{
int i;
void *src, *dest;
@@ -1042,7 +1042,7 @@ out:
}
#define IOP_ADMA_NUM_SRC_TEST 4 /* must be <= 15 */
-static int __devinit
+static int
iop_adma_xor_val_self_test(struct iop_adma_device *device)
{
int i, src_idx;
@@ -1243,7 +1243,7 @@ out:
}
#ifdef CONFIG_RAID6_PQ
-static int __devinit
+static int
iop_adma_pq_zero_sum_self_test(struct iop_adma_device *device)
{
/* combined sources, software pq results, and extra hw pq results */
@@ -1429,7 +1429,7 @@ static int __devexit iop_adma_remove(struct platform_device *dev)
return 0;
}
-static int __devinit iop_adma_probe(struct platform_device *pdev)
+static int iop_adma_probe(struct platform_device *pdev)
{
struct resource *res;
int ret = 0, i;
@@ -1711,7 +1711,7 @@ static void iop_chan_start_null_xor(struct iop_adma_chan *iop_chan)
static struct platform_driver iop_adma_driver = {
.probe = iop_adma_probe,
- .remove = __devexit_p(iop_adma_remove),
+ .remove = iop_adma_remove,
.driver = {
.owner = THIS_MODULE,
.name = "iop-adma",
diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c
index c7573e50aa1..65855373cee 100644
--- a/drivers/dma/ipu/ipu_idmac.c
+++ b/drivers/dma/ipu/ipu_idmac.c
@@ -22,8 +22,7 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>
-
-#include <mach/ipu.h>
+#include <linux/dma/ipu-dma.h>
#include "../dmaengine.h"
#include "ipu_intern.h"
diff --git a/drivers/dma/ipu/ipu_irq.c b/drivers/dma/ipu/ipu_irq.c
index fa95bcc3de1..a5ee37d5320 100644
--- a/drivers/dma/ipu/ipu_irq.c
+++ b/drivers/dma/ipu/ipu_irq.c
@@ -15,8 +15,7 @@
#include <linux/irq.h>
#include <linux/io.h>
#include <linux/module.h>
-
-#include <mach/ipu.h>
+#include <linux/dma/ipu-dma.h>
#include "ipu_intern.h"
diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index 14da1f403ed..13bdf4a7e1e 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -720,7 +720,7 @@ static int __devexit mmp_pdma_remove(struct platform_device *op)
return 0;
}
-static int __devinit mmp_pdma_chan_init(struct mmp_pdma_device *pdev,
+static int mmp_pdma_chan_init(struct mmp_pdma_device *pdev,
int idx, int irq)
{
struct mmp_pdma_phy *phy = &pdev->phy[idx];
@@ -764,7 +764,7 @@ static struct of_device_id mmp_pdma_dt_ids[] = {
};
MODULE_DEVICE_TABLE(of, mmp_pdma_dt_ids);
-static int __devinit mmp_pdma_probe(struct platform_device *op)
+static int mmp_pdma_probe(struct platform_device *op)
{
struct mmp_pdma_device *pdev;
const struct of_device_id *of_id;
@@ -865,7 +865,7 @@ static struct platform_driver mmp_pdma_driver = {
},
.id_table = mmp_pdma_id_table,
.probe = mmp_pdma_probe,
- .remove = __devexit_p(mmp_pdma_remove),
+ .remove = mmp_pdma_remove,
};
module_platform_driver(mmp_pdma_driver);
diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index f3e8d71bcbc..323821c0c09 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -475,7 +475,7 @@ static int __devexit mmp_tdma_remove(struct platform_device *pdev)
return 0;
}
-static int __devinit mmp_tdma_chan_init(struct mmp_tdma_device *tdev,
+static int mmp_tdma_chan_init(struct mmp_tdma_device *tdev,
int idx, int irq, int type)
{
struct mmp_tdma_chan *tdmac;
@@ -515,7 +515,7 @@ static struct of_device_id mmp_tdma_dt_ids[] = {
};
MODULE_DEVICE_TABLE(of, mmp_tdma_dt_ids);
-static int __devinit mmp_tdma_probe(struct platform_device *pdev)
+static int mmp_tdma_probe(struct platform_device *pdev)
{
enum mmp_tdma_type type;
const struct of_device_id *of_id;
@@ -609,7 +609,7 @@ static struct platform_driver mmp_tdma_driver = {
},
.id_table = mmp_tdma_id_table,
.probe = mmp_tdma_probe,
- .remove = __devexit_p(mmp_tdma_remove),
+ .remove = mmp_tdma_remove,
};
module_platform_driver(mmp_tdma_driver);
diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c
index 2ab0a3d0eed..2cd024a91d4 100644
--- a/drivers/dma/mpc512x_dma.c
+++ b/drivers/dma/mpc512x_dma.c
@@ -641,7 +641,7 @@ mpc_dma_prep_memcpy(struct dma_chan *chan, dma_addr_t dst, dma_addr_t src,
return &mdesc->desc;
}
-static int __devinit mpc_dma_probe(struct platform_device *op)
+static int mpc_dma_probe(struct platform_device *op)
{
struct device_node *dn = op->dev.of_node;
struct device *dev = &op->dev;
@@ -818,7 +818,7 @@ static struct of_device_id mpc_dma_match[] = {
static struct platform_driver mpc_dma_driver = {
.probe = mpc_dma_probe,
- .remove = __devexit_p(mpc_dma_remove),
+ .remove = mpc_dma_remove,
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index e362e2b80ef..ac71f555dd7 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -26,6 +26,9 @@
#include <linux/platform_device.h>
#include <linux/memory.h>
#include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/irqdomain.h>
#include <linux/platform_data/dma-mv_xor.h>
#include "dmaengine.h"
@@ -34,14 +37,14 @@
static void mv_xor_issue_pending(struct dma_chan *chan);
#define to_mv_xor_chan(chan) \
- container_of(chan, struct mv_xor_chan, common)
-
-#define to_mv_xor_device(dev) \
- container_of(dev, struct mv_xor_device, common)
+ container_of(chan, struct mv_xor_chan, dmachan)
#define to_mv_xor_slot(tx) \
container_of(tx, struct mv_xor_desc_slot, async_tx)
+#define mv_chan_to_devp(chan) \
+ ((chan)->dmadev.dev)
+
static void mv_desc_init(struct mv_xor_desc_slot *desc, unsigned long flags)
{
struct mv_xor_desc *hw_desc = desc->hw_desc;
@@ -166,7 +169,7 @@ static int mv_is_err_intr(u32 intr_cause)
static void mv_xor_device_clear_eoc_cause(struct mv_xor_chan *chan)
{
u32 val = ~(1 << (chan->idx * 16));
- dev_dbg(chan->device->common.dev, "%s, val 0x%08x\n", __func__, val);
+ dev_dbg(mv_chan_to_devp(chan), "%s, val 0x%08x\n", __func__, val);
__raw_writel(val, XOR_INTR_CAUSE(chan));
}
@@ -206,9 +209,9 @@ static void mv_set_mode(struct mv_xor_chan *chan,
op_mode = XOR_OPERATION_MODE_MEMSET;
break;
default:
- dev_printk(KERN_ERR, chan->device->common.dev,
- "error: unsupported operation %d.\n",
- type);
+ dev_err(mv_chan_to_devp(chan),
+ "error: unsupported operation %d.\n",
+ type);
BUG();
return;
}
@@ -223,7 +226,7 @@ static void mv_chan_activate(struct mv_xor_chan *chan)
{
u32 activation;
- dev_dbg(chan->device->common.dev, " activate chan.\n");
+ dev_dbg(mv_chan_to_devp(chan), " activate chan.\n");
activation = __raw_readl(XOR_ACTIVATION(chan));
activation |= 0x1;
__raw_writel(activation, XOR_ACTIVATION(chan));
@@ -251,7 +254,7 @@ static int mv_chan_xor_slot_count(size_t len, int src_cnt)
static void mv_xor_free_slots(struct mv_xor_chan *mv_chan,
struct mv_xor_desc_slot *slot)
{
- dev_dbg(mv_chan->device->common.dev, "%s %d slot %p\n",
+ dev_dbg(mv_chan_to_devp(mv_chan), "%s %d slot %p\n",
__func__, __LINE__, slot);
slot->slots_per_op = 0;
@@ -266,7 +269,7 @@ static void mv_xor_free_slots(struct mv_xor_chan *mv_chan,
static void mv_xor_start_new_chain(struct mv_xor_chan *mv_chan,
struct mv_xor_desc_slot *sw_desc)
{
- dev_dbg(mv_chan->device->common.dev, "%s %d: sw_desc %p\n",
+ dev_dbg(mv_chan_to_devp(mv_chan), "%s %d: sw_desc %p\n",
__func__, __LINE__, sw_desc);
if (sw_desc->type != mv_chan->current_type)
mv_set_mode(mv_chan, sw_desc->type);
@@ -284,7 +287,7 @@ static void mv_xor_start_new_chain(struct mv_xor_chan *mv_chan,
mv_chan_set_next_descriptor(mv_chan, sw_desc->async_tx.phys);
}
mv_chan->pending += sw_desc->slot_cnt;
- mv_xor_issue_pending(&mv_chan->common);
+ mv_xor_issue_pending(&mv_chan->dmachan);
}
static dma_cookie_t
@@ -308,8 +311,7 @@ mv_xor_run_tx_complete_actions(struct mv_xor_desc_slot *desc,
*/
if (desc->group_head && desc->unmap_len) {
struct mv_xor_desc_slot *unmap = desc->group_head;
- struct device *dev =
- &mv_chan->device->pdev->dev;
+ struct device *dev = mv_chan_to_devp(mv_chan);
u32 len = unmap->unmap_len;
enum dma_ctrl_flags flags = desc->async_tx.flags;
u32 src_cnt;
@@ -353,7 +355,7 @@ mv_xor_clean_completed_slots(struct mv_xor_chan *mv_chan)
{
struct mv_xor_desc_slot *iter, *_iter;
- dev_dbg(mv_chan->device->common.dev, "%s %d\n", __func__, __LINE__);
+ dev_dbg(mv_chan_to_devp(mv_chan), "%s %d\n", __func__, __LINE__);
list_for_each_entry_safe(iter, _iter, &mv_chan->completed_slots,
completed_node) {
@@ -369,7 +371,7 @@ static int
mv_xor_clean_slot(struct mv_xor_desc_slot *desc,
struct mv_xor_chan *mv_chan)
{
- dev_dbg(mv_chan->device->common.dev, "%s %d: desc %p flags %d\n",
+ dev_dbg(mv_chan_to_devp(mv_chan), "%s %d: desc %p flags %d\n",
__func__, __LINE__, desc, desc->async_tx.flags);
list_del(&desc->chain_node);
/* the client is allowed to attach dependent operations
@@ -393,8 +395,8 @@ static void __mv_xor_slot_cleanup(struct mv_xor_chan *mv_chan)
u32 current_desc = mv_chan_get_current_desc(mv_chan);
int seen_current = 0;
- dev_dbg(mv_chan->device->common.dev, "%s %d\n", __func__, __LINE__);
- dev_dbg(mv_chan->device->common.dev, "current_desc %x\n", current_desc);
+ dev_dbg(mv_chan_to_devp(mv_chan), "%s %d\n", __func__, __LINE__);
+ dev_dbg(mv_chan_to_devp(mv_chan), "current_desc %x\n", current_desc);
mv_xor_clean_completed_slots(mv_chan);
/* free completed slots from the chain starting with
@@ -438,7 +440,7 @@ static void __mv_xor_slot_cleanup(struct mv_xor_chan *mv_chan)
}
if (cookie > 0)
- mv_chan->common.completed_cookie = cookie;
+ mv_chan->dmachan.completed_cookie = cookie;
}
static void
@@ -547,7 +549,7 @@ mv_xor_tx_submit(struct dma_async_tx_descriptor *tx)
dma_cookie_t cookie;
int new_hw_chain = 1;
- dev_dbg(mv_chan->device->common.dev,
+ dev_dbg(mv_chan_to_devp(mv_chan),
"%s sw_desc %p: async_tx %p\n",
__func__, sw_desc, &sw_desc->async_tx);
@@ -570,7 +572,7 @@ mv_xor_tx_submit(struct dma_async_tx_descriptor *tx)
if (!mv_can_chain(grp_start))
goto submit_done;
- dev_dbg(mv_chan->device->common.dev, "Append to last desc %x\n",
+ dev_dbg(mv_chan_to_devp(mv_chan), "Append to last desc %x\n",
old_chain_tail->async_tx.phys);
/* fix up the hardware chain */
@@ -604,9 +606,7 @@ static int mv_xor_alloc_chan_resources(struct dma_chan *chan)
int idx;
struct mv_xor_chan *mv_chan = to_mv_xor_chan(chan);
struct mv_xor_desc_slot *slot = NULL;
- struct mv_xor_platform_data *plat_data =
- mv_chan->device->pdev->dev.platform_data;
- int num_descs_in_pool = plat_data->pool_size/MV_XOR_SLOT_SIZE;
+ int num_descs_in_pool = MV_XOR_POOL_SIZE/MV_XOR_SLOT_SIZE;
/* Allocate descriptor slots */
idx = mv_chan->slots_allocated;
@@ -617,7 +617,7 @@ static int mv_xor_alloc_chan_resources(struct dma_chan *chan)
" %d descriptor slots", idx);
break;
}
- hw_desc = (char *) mv_chan->device->dma_desc_pool_virt;
+ hw_desc = (char *) mv_chan->dma_desc_pool_virt;
slot->hw_desc = (void *) &hw_desc[idx * MV_XOR_SLOT_SIZE];
dma_async_tx_descriptor_init(&slot->async_tx, chan);
@@ -625,7 +625,7 @@ static int mv_xor_alloc_chan_resources(struct dma_chan *chan)
INIT_LIST_HEAD(&slot->chain_node);
INIT_LIST_HEAD(&slot->slot_node);
INIT_LIST_HEAD(&slot->tx_list);
- hw_desc = (char *) mv_chan->device->dma_desc_pool;
+ hw_desc = (char *) mv_chan->dma_desc_pool;
slot->async_tx.phys =
(dma_addr_t) &hw_desc[idx * MV_XOR_SLOT_SIZE];
slot->idx = idx++;
@@ -641,7 +641,7 @@ static int mv_xor_alloc_chan_resources(struct dma_chan *chan)
struct mv_xor_desc_slot,
slot_node);
- dev_dbg(mv_chan->device->common.dev,
+ dev_dbg(mv_chan_to_devp(mv_chan),
"allocated %d descriptor slots last_used: %p\n",
mv_chan->slots_allocated, mv_chan->last_used);
@@ -656,7 +656,7 @@ mv_xor_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src,
struct mv_xor_desc_slot *sw_desc, *grp_start;
int slot_cnt;
- dev_dbg(mv_chan->device->common.dev,
+ dev_dbg(mv_chan_to_devp(mv_chan),
"%s dest: %x src %x len: %u flags: %ld\n",
__func__, dest, src, len, flags);
if (unlikely(len < MV_XOR_MIN_BYTE_COUNT))
@@ -680,7 +680,7 @@ mv_xor_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src,
}
spin_unlock_bh(&mv_chan->lock);
- dev_dbg(mv_chan->device->common.dev,
+ dev_dbg(mv_chan_to_devp(mv_chan),
"%s sw_desc %p async_tx %p\n",
__func__, sw_desc, sw_desc ? &sw_desc->async_tx : 0);
@@ -695,7 +695,7 @@ mv_xor_prep_dma_memset(struct dma_chan *chan, dma_addr_t dest, int value,
struct mv_xor_desc_slot *sw_desc, *grp_start;
int slot_cnt;
- dev_dbg(mv_chan->device->common.dev,
+ dev_dbg(mv_chan_to_devp(mv_chan),
"%s dest: %x len: %u flags: %ld\n",
__func__, dest, len, flags);
if (unlikely(len < MV_XOR_MIN_BYTE_COUNT))
@@ -718,7 +718,7 @@ mv_xor_prep_dma_memset(struct dma_chan *chan, dma_addr_t dest, int value,
sw_desc->unmap_len = len;
}
spin_unlock_bh(&mv_chan->lock);
- dev_dbg(mv_chan->device->common.dev,
+ dev_dbg(mv_chan_to_devp(mv_chan),
"%s sw_desc %p async_tx %p \n",
__func__, sw_desc, &sw_desc->async_tx);
return sw_desc ? &sw_desc->async_tx : NULL;
@@ -737,7 +737,7 @@ mv_xor_prep_dma_xor(struct dma_chan *chan, dma_addr_t dest, dma_addr_t *src,
BUG_ON(len > MV_XOR_MAX_BYTE_COUNT);
- dev_dbg(mv_chan->device->common.dev,
+ dev_dbg(mv_chan_to_devp(mv_chan),
"%s src_cnt: %d len: dest %x %u flags: %ld\n",
__func__, src_cnt, len, dest, flags);
@@ -758,7 +758,7 @@ mv_xor_prep_dma_xor(struct dma_chan *chan, dma_addr_t dest, dma_addr_t *src,
mv_desc_set_src_addr(grp_start, src_cnt, src[src_cnt]);
}
spin_unlock_bh(&mv_chan->lock);
- dev_dbg(mv_chan->device->common.dev,
+ dev_dbg(mv_chan_to_devp(mv_chan),
"%s sw_desc %p async_tx %p \n",
__func__, sw_desc, &sw_desc->async_tx);
return sw_desc ? &sw_desc->async_tx : NULL;
@@ -791,12 +791,12 @@ static void mv_xor_free_chan_resources(struct dma_chan *chan)
}
mv_chan->last_used = NULL;
- dev_dbg(mv_chan->device->common.dev, "%s slots_allocated %d\n",
+ dev_dbg(mv_chan_to_devp(mv_chan), "%s slots_allocated %d\n",
__func__, mv_chan->slots_allocated);
spin_unlock_bh(&mv_chan->lock);
if (in_use_descs)
- dev_err(mv_chan->device->common.dev,
+ dev_err(mv_chan_to_devp(mv_chan),
"freeing %d in use descriptors!\n", in_use_descs);
}
@@ -828,42 +828,42 @@ static void mv_dump_xor_regs(struct mv_xor_chan *chan)
u32 val;
val = __raw_readl(XOR_CONFIG(chan));
- dev_printk(KERN_ERR, chan->device->common.dev,
- "config 0x%08x.\n", val);
+ dev_err(mv_chan_to_devp(chan),
+ "config 0x%08x.\n", val);
val = __raw_readl(XOR_ACTIVATION(chan));
- dev_printk(KERN_ERR, chan->device->common.dev,
- "activation 0x%08x.\n", val);
+ dev_err(mv_chan_to_devp(chan),
+ "activation 0x%08x.\n", val);
val = __raw_readl(XOR_INTR_CAUSE(chan));
- dev_printk(KERN_ERR, chan->device->common.dev,
- "intr cause 0x%08x.\n", val);
+ dev_err(mv_chan_to_devp(chan),
+ "intr cause 0x%08x.\n", val);
val = __raw_readl(XOR_INTR_MASK(chan));
- dev_printk(KERN_ERR, chan->device->common.dev,
- "intr mask 0x%08x.\n", val);
+ dev_err(mv_chan_to_devp(chan),
+ "intr mask 0x%08x.\n", val);
val = __raw_readl(XOR_ERROR_CAUSE(chan));
- dev_printk(KERN_ERR, chan->device->common.dev,
- "error cause 0x%08x.\n", val);
+ dev_err(mv_chan_to_devp(chan),
+ "error cause 0x%08x.\n", val);
val = __raw_readl(XOR_ERROR_ADDR(chan));
- dev_printk(KERN_ERR, chan->device->common.dev,
- "error addr 0x%08x.\n", val);
+ dev_err(mv_chan_to_devp(chan),
+ "error addr 0x%08x.\n", val);
}
static void mv_xor_err_interrupt_handler(struct mv_xor_chan *chan,
u32 intr_cause)
{
if (intr_cause & (1 << 4)) {
- dev_dbg(chan->device->common.dev,
+ dev_dbg(mv_chan_to_devp(chan),
"ignore this error\n");
return;
}
- dev_printk(KERN_ERR, chan->device->common.dev,
- "error on chan %d. intr cause 0x%08x.\n",
- chan->idx, intr_cause);
+ dev_err(mv_chan_to_devp(chan),
+ "error on chan %d. intr cause 0x%08x.\n",
+ chan->idx, intr_cause);
mv_dump_xor_regs(chan);
BUG();
@@ -874,7 +874,7 @@ static irqreturn_t mv_xor_interrupt_handler(int irq, void *data)
struct mv_xor_chan *chan = data;
u32 intr_cause = mv_chan_get_intr_cause(chan);
- dev_dbg(chan->device->common.dev, "intr cause %x\n", intr_cause);
+ dev_dbg(mv_chan_to_devp(chan), "intr cause %x\n", intr_cause);
if (mv_is_err_intr(intr_cause))
mv_xor_err_interrupt_handler(chan, intr_cause);
@@ -901,7 +901,7 @@ static void mv_xor_issue_pending(struct dma_chan *chan)
*/
#define MV_XOR_TEST_SIZE 2000
-static int __devinit mv_xor_memcpy_self_test(struct mv_xor_device *device)
+static int mv_xor_memcpy_self_test(struct mv_xor_chan *mv_chan)
{
int i;
void *src, *dest;
@@ -910,7 +910,6 @@ static int __devinit mv_xor_memcpy_self_test(struct mv_xor_device *device)
dma_cookie_t cookie;
struct dma_async_tx_descriptor *tx;
int err = 0;
- struct mv_xor_chan *mv_chan;
src = kmalloc(sizeof(u8) * MV_XOR_TEST_SIZE, GFP_KERNEL);
if (!src)
@@ -926,10 +925,7 @@ static int __devinit mv_xor_memcpy_self_test(struct mv_xor_device *device)
for (i = 0; i < MV_XOR_TEST_SIZE; i++)
((u8 *) src)[i] = (u8)i;
- /* Start copy, using first DMA channel */
- dma_chan = container_of(device->common.channels.next,
- struct dma_chan,
- device_node);
+ dma_chan = &mv_chan->dmachan;
if (mv_xor_alloc_chan_resources(dma_chan) < 1) {
err = -ENODEV;
goto out;
@@ -950,18 +946,17 @@ static int __devinit mv_xor_memcpy_self_test(struct mv_xor_device *device)
if (mv_xor_status(dma_chan, cookie, NULL) !=
DMA_SUCCESS) {
- dev_printk(KERN_ERR, dma_chan->device->dev,
- "Self-test copy timed out, disabling\n");
+ dev_err(dma_chan->device->dev,
+ "Self-test copy timed out, disabling\n");
err = -ENODEV;
goto free_resources;
}
- mv_chan = to_mv_xor_chan(dma_chan);
- dma_sync_single_for_cpu(&mv_chan->device->pdev->dev, dest_dma,
+ dma_sync_single_for_cpu(dma_chan->device->dev, dest_dma,
MV_XOR_TEST_SIZE, DMA_FROM_DEVICE);
if (memcmp(src, dest, MV_XOR_TEST_SIZE)) {
- dev_printk(KERN_ERR, dma_chan->device->dev,
- "Self-test copy failed compare, disabling\n");
+ dev_err(dma_chan->device->dev,
+ "Self-test copy failed compare, disabling\n");
err = -ENODEV;
goto free_resources;
}
@@ -975,8 +970,8 @@ out:
}
#define MV_XOR_NUM_SRC_TEST 4 /* must be <= 15 */
-static int __devinit
-mv_xor_xor_self_test(struct mv_xor_device *device)
+static int
+mv_xor_xor_self_test(struct mv_xor_chan *mv_chan)
{
int i, src_idx;
struct page *dest;
@@ -989,7 +984,6 @@ mv_xor_xor_self_test(struct mv_xor_device *device)
u8 cmp_byte = 0;
u32 cmp_word;
int err = 0;
- struct mv_xor_chan *mv_chan;
for (src_idx = 0; src_idx < MV_XOR_NUM_SRC_TEST; src_idx++) {
xor_srcs[src_idx] = alloc_page(GFP_KERNEL);
@@ -1022,9 +1016,7 @@ mv_xor_xor_self_test(struct mv_xor_device *device)
memset(page_address(dest), 0, PAGE_SIZE);
- dma_chan = container_of(device->common.channels.next,
- struct dma_chan,
- device_node);
+ dma_chan = &mv_chan->dmachan;
if (mv_xor_alloc_chan_resources(dma_chan) < 1) {
err = -ENODEV;
goto out;
@@ -1048,22 +1040,21 @@ mv_xor_xor_self_test(struct mv_xor_device *device)
if (mv_xor_status(dma_chan, cookie, NULL) !=
DMA_SUCCESS) {
- dev_printk(KERN_ERR, dma_chan->device->dev,
- "Self-test xor timed out, disabling\n");
+ dev_err(dma_chan->device->dev,
+ "Self-test xor timed out, disabling\n");
err = -ENODEV;
goto free_resources;
}
- mv_chan = to_mv_xor_chan(dma_chan);
- dma_sync_single_for_cpu(&mv_chan->device->pdev->dev, dest_dma,
+ dma_sync_single_for_cpu(dma_chan->device->dev, dest_dma,
PAGE_SIZE, DMA_FROM_DEVICE);
for (i = 0; i < (PAGE_SIZE / sizeof(u32)); i++) {
u32 *ptr = page_address(dest);
if (ptr[i] != cmp_word) {
- dev_printk(KERN_ERR, dma_chan->device->dev,
- "Self-test xor failed compare, disabling."
- " index %d, data %x, expected %x\n", i,
- ptr[i], cmp_word);
+ dev_err(dma_chan->device->dev,
+ "Self-test xor failed compare, disabling."
+ " index %d, data %x, expected %x\n", i,
+ ptr[i], cmp_word);
err = -ENODEV;
goto free_resources;
}
@@ -1079,62 +1070,66 @@ out:
return err;
}
-static int __devexit mv_xor_remove(struct platform_device *dev)
+/* This driver does not implement any of the optional DMA operations. */
+static int
+mv_xor_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
+ unsigned long arg)
+{
+ return -ENOSYS;
+}
+
+static int mv_xor_channel_remove(struct mv_xor_chan *mv_chan)
{
- struct mv_xor_device *device = platform_get_drvdata(dev);
struct dma_chan *chan, *_chan;
- struct mv_xor_chan *mv_chan;
- struct mv_xor_platform_data *plat_data = dev->dev.platform_data;
+ struct device *dev = mv_chan->dmadev.dev;
- dma_async_device_unregister(&device->common);
+ dma_async_device_unregister(&mv_chan->dmadev);
- dma_free_coherent(&dev->dev, plat_data->pool_size,
- device->dma_desc_pool_virt, device->dma_desc_pool);
+ dma_free_coherent(dev, MV_XOR_POOL_SIZE,
+ mv_chan->dma_desc_pool_virt, mv_chan->dma_desc_pool);
- list_for_each_entry_safe(chan, _chan, &device->common.channels,
- device_node) {
- mv_chan = to_mv_xor_chan(chan);
+ list_for_each_entry_safe(chan, _chan, &mv_chan->dmadev.channels,
+ device_node) {
list_del(&chan->device_node);
}
+ free_irq(mv_chan->irq, mv_chan);
+
return 0;
}
-static int __devinit mv_xor_probe(struct platform_device *pdev)
+static struct mv_xor_chan *
+mv_xor_channel_add(struct mv_xor_device *xordev,
+ struct platform_device *pdev,
+ int idx, dma_cap_mask_t cap_mask, int irq)
{
int ret = 0;
- int irq;
- struct mv_xor_device *adev;
struct mv_xor_chan *mv_chan;
struct dma_device *dma_dev;
- struct mv_xor_platform_data *plat_data = pdev->dev.platform_data;
+ mv_chan = devm_kzalloc(&pdev->dev, sizeof(*mv_chan), GFP_KERNEL);
+ if (!mv_chan) {
+ ret = -ENOMEM;
+ goto err_free_dma;
+ }
- adev = devm_kzalloc(&pdev->dev, sizeof(*adev), GFP_KERNEL);
- if (!adev)
- return -ENOMEM;
+ mv_chan->idx = idx;
+ mv_chan->irq = irq;
- dma_dev = &adev->common;
+ dma_dev = &mv_chan->dmadev;
/* allocate coherent memory for hardware descriptors
* note: writecombine gives slightly better performance, but
* requires that we explicitly flush the writes
*/
- adev->dma_desc_pool_virt = dma_alloc_writecombine(&pdev->dev,
- plat_data->pool_size,
- &adev->dma_desc_pool,
- GFP_KERNEL);
- if (!adev->dma_desc_pool_virt)
- return -ENOMEM;
-
- adev->id = plat_data->hw_id;
+ mv_chan->dma_desc_pool_virt =
+ dma_alloc_writecombine(&pdev->dev, MV_XOR_POOL_SIZE,
+ &mv_chan->dma_desc_pool, GFP_KERNEL);
+ if (!mv_chan->dma_desc_pool_virt)
+ return ERR_PTR(-ENOMEM);
/* discover transaction capabilites from the platform data */
- dma_dev->cap_mask = plat_data->cap_mask;
- adev->pdev = pdev;
- platform_set_drvdata(pdev, adev);
-
- adev->shared = platform_get_drvdata(plat_data->shared);
+ dma_dev->cap_mask = cap_mask;
INIT_LIST_HEAD(&dma_dev->channels);
@@ -1143,6 +1138,7 @@ static int __devinit mv_xor_probe(struct platform_device *pdev)
dma_dev->device_free_chan_resources = mv_xor_free_chan_resources;
dma_dev->device_tx_status = mv_xor_status;
dma_dev->device_issue_pending = mv_xor_issue_pending;
+ dma_dev->device_control = mv_xor_control;
dma_dev->dev = &pdev->dev;
/* set prep routines based on capability */
@@ -1155,15 +1151,7 @@ static int __devinit mv_xor_probe(struct platform_device *pdev)
dma_dev->device_prep_dma_xor = mv_xor_prep_dma_xor;
}
- mv_chan = devm_kzalloc(&pdev->dev, sizeof(*mv_chan), GFP_KERNEL);
- if (!mv_chan) {
- ret = -ENOMEM;
- goto err_free_dma;
- }
- mv_chan->device = adev;
- mv_chan->idx = plat_data->hw_id;
- mv_chan->mmr_base = adev->shared->xor_base;
-
+ mv_chan->mmr_base = xordev->xor_base;
if (!mv_chan->mmr_base) {
ret = -ENOMEM;
goto err_free_dma;
@@ -1174,14 +1162,8 @@ static int __devinit mv_xor_probe(struct platform_device *pdev)
/* clear errors before enabling interrupts */
mv_xor_device_clear_err_status(mv_chan);
- irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
- ret = irq;
- goto err_free_dma;
- }
- ret = devm_request_irq(&pdev->dev, irq,
- mv_xor_interrupt_handler,
- 0, dev_name(&pdev->dev), mv_chan);
+ ret = request_irq(mv_chan->irq, mv_xor_interrupt_handler,
+ 0, dev_name(&pdev->dev), mv_chan);
if (ret)
goto err_free_dma;
@@ -1193,26 +1175,26 @@ static int __devinit mv_xor_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&mv_chan->chain);
INIT_LIST_HEAD(&mv_chan->completed_slots);
INIT_LIST_HEAD(&mv_chan->all_slots);
- mv_chan->common.device = dma_dev;
- dma_cookie_init(&mv_chan->common);
+ mv_chan->dmachan.device = dma_dev;
+ dma_cookie_init(&mv_chan->dmachan);
- list_add_tail(&mv_chan->common.device_node, &dma_dev->channels);
+ list_add_tail(&mv_chan->dmachan.device_node, &dma_dev->channels);
if (dma_has_cap(DMA_MEMCPY, dma_dev->cap_mask)) {
- ret = mv_xor_memcpy_self_test(adev);
+ ret = mv_xor_memcpy_self_test(mv_chan);
dev_dbg(&pdev->dev, "memcpy self test returned %d\n", ret);
if (ret)
- goto err_free_dma;
+ goto err_free_irq;
}
if (dma_has_cap(DMA_XOR, dma_dev->cap_mask)) {
- ret = mv_xor_xor_self_test(adev);
+ ret = mv_xor_xor_self_test(mv_chan);
dev_dbg(&pdev->dev, "xor self test returned %d\n", ret);
if (ret)
- goto err_free_dma;
+ goto err_free_irq;
}
- dev_printk(KERN_INFO, &pdev->dev, "Marvell XOR: "
+ dev_info(&pdev->dev, "Marvell XOR: "
"( %s%s%s%s)\n",
dma_has_cap(DMA_XOR, dma_dev->cap_mask) ? "xor " : "",
dma_has_cap(DMA_MEMSET, dma_dev->cap_mask) ? "fill " : "",
@@ -1220,20 +1202,21 @@ static int __devinit mv_xor_probe(struct platform_device *pdev)
dma_has_cap(DMA_INTERRUPT, dma_dev->cap_mask) ? "intr " : "");
dma_async_device_register(dma_dev);
- goto out;
+ return mv_chan;
+err_free_irq:
+ free_irq(mv_chan->irq, mv_chan);
err_free_dma:
- dma_free_coherent(&adev->pdev->dev, plat_data->pool_size,
- adev->dma_desc_pool_virt, adev->dma_desc_pool);
- out:
- return ret;
+ dma_free_coherent(&pdev->dev, MV_XOR_POOL_SIZE,
+ mv_chan->dma_desc_pool_virt, mv_chan->dma_desc_pool);
+ return ERR_PTR(ret);
}
static void
-mv_xor_conf_mbus_windows(struct mv_xor_shared_private *msp,
+mv_xor_conf_mbus_windows(struct mv_xor_device *xordev,
const struct mbus_dram_target_info *dram)
{
- void __iomem *base = msp->xor_base;
+ void __iomem *base = xordev->xor_base;
u32 win_enable = 0;
int i;
@@ -1258,99 +1241,176 @@ mv_xor_conf_mbus_windows(struct mv_xor_shared_private *msp,
writel(win_enable, base + WINDOW_BAR_ENABLE(0));
writel(win_enable, base + WINDOW_BAR_ENABLE(1));
+ writel(0, base + WINDOW_OVERRIDE_CTRL(0));
+ writel(0, base + WINDOW_OVERRIDE_CTRL(1));
}
-static struct platform_driver mv_xor_driver = {
- .probe = mv_xor_probe,
- .remove = __devexit_p(mv_xor_remove),
- .driver = {
- .owner = THIS_MODULE,
- .name = MV_XOR_NAME,
- },
-};
-
-static int mv_xor_shared_probe(struct platform_device *pdev)
+static int mv_xor_probe(struct platform_device *pdev)
{
const struct mbus_dram_target_info *dram;
- struct mv_xor_shared_private *msp;
+ struct mv_xor_device *xordev;
+ struct mv_xor_platform_data *pdata = pdev->dev.platform_data;
struct resource *res;
+ int i, ret;
- dev_printk(KERN_NOTICE, &pdev->dev, "Marvell shared XOR driver\n");
+ dev_notice(&pdev->dev, "Marvell XOR driver\n");
- msp = devm_kzalloc(&pdev->dev, sizeof(*msp), GFP_KERNEL);
- if (!msp)
+ xordev = devm_kzalloc(&pdev->dev, sizeof(*xordev), GFP_KERNEL);
+ if (!xordev)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
- msp->xor_base = devm_ioremap(&pdev->dev, res->start,
- resource_size(res));
- if (!msp->xor_base)
+ xordev->xor_base = devm_ioremap(&pdev->dev, res->start,
+ resource_size(res));
+ if (!xordev->xor_base)
return -EBUSY;
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!res)
return -ENODEV;
- msp->xor_high_base = devm_ioremap(&pdev->dev, res->start,
- resource_size(res));
- if (!msp->xor_high_base)
+ xordev->xor_high_base = devm_ioremap(&pdev->dev, res->start,
+ resource_size(res));
+ if (!xordev->xor_high_base)
return -EBUSY;
- platform_set_drvdata(pdev, msp);
+ platform_set_drvdata(pdev, xordev);
/*
* (Re-)program MBUS remapping windows if we are asked to.
*/
dram = mv_mbus_dram_info();
if (dram)
- mv_xor_conf_mbus_windows(msp, dram);
+ mv_xor_conf_mbus_windows(xordev, dram);
/* Not all platforms can gate the clock, so it is not
* an error if the clock does not exists.
*/
- msp->clk = clk_get(&pdev->dev, NULL);
- if (!IS_ERR(msp->clk))
- clk_prepare_enable(msp->clk);
+ xordev->clk = clk_get(&pdev->dev, NULL);
+ if (!IS_ERR(xordev->clk))
+ clk_prepare_enable(xordev->clk);
+
+ if (pdev->dev.of_node) {
+ struct device_node *np;
+ int i = 0;
+
+ for_each_child_of_node(pdev->dev.of_node, np) {
+ dma_cap_mask_t cap_mask;
+ int irq;
+
+ dma_cap_zero(cap_mask);
+ if (of_property_read_bool(np, "dmacap,memcpy"))
+ dma_cap_set(DMA_MEMCPY, cap_mask);
+ if (of_property_read_bool(np, "dmacap,xor"))
+ dma_cap_set(DMA_XOR, cap_mask);
+ if (of_property_read_bool(np, "dmacap,memset"))
+ dma_cap_set(DMA_MEMSET, cap_mask);
+ if (of_property_read_bool(np, "dmacap,interrupt"))
+ dma_cap_set(DMA_INTERRUPT, cap_mask);
+
+ irq = irq_of_parse_and_map(np, 0);
+ if (!irq) {
+ ret = -ENODEV;
+ goto err_channel_add;
+ }
+
+ xordev->channels[i] =
+ mv_xor_channel_add(xordev, pdev, i,
+ cap_mask, irq);
+ if (IS_ERR(xordev->channels[i])) {
+ ret = PTR_ERR(xordev->channels[i]);
+ xordev->channels[i] = NULL;
+ irq_dispose_mapping(irq);
+ goto err_channel_add;
+ }
+
+ i++;
+ }
+ } else if (pdata && pdata->channels) {
+ for (i = 0; i < MV_XOR_MAX_CHANNELS; i++) {
+ struct mv_xor_channel_data *cd;
+ int irq;
+
+ cd = &pdata->channels[i];
+ if (!cd) {
+ ret = -ENODEV;
+ goto err_channel_add;
+ }
+
+ irq = platform_get_irq(pdev, i);
+ if (irq < 0) {
+ ret = irq;
+ goto err_channel_add;
+ }
+
+ xordev->channels[i] =
+ mv_xor_channel_add(xordev, pdev, i,
+ cd->cap_mask, irq);
+ if (IS_ERR(xordev->channels[i])) {
+ ret = PTR_ERR(xordev->channels[i]);
+ goto err_channel_add;
+ }
+ }
+ }
return 0;
+
+err_channel_add:
+ for (i = 0; i < MV_XOR_MAX_CHANNELS; i++)
+ if (xordev->channels[i]) {
+ if (pdev->dev.of_node)
+ irq_dispose_mapping(xordev->channels[i]->irq);
+ mv_xor_channel_remove(xordev->channels[i]);
+ }
+
+ clk_disable_unprepare(xordev->clk);
+ clk_put(xordev->clk);
+ return ret;
}
-static int mv_xor_shared_remove(struct platform_device *pdev)
+static int mv_xor_remove(struct platform_device *pdev)
{
- struct mv_xor_shared_private *msp = platform_get_drvdata(pdev);
+ struct mv_xor_device *xordev = platform_get_drvdata(pdev);
+ int i;
+
+ for (i = 0; i < MV_XOR_MAX_CHANNELS; i++) {
+ if (xordev->channels[i])
+ mv_xor_channel_remove(xordev->channels[i]);
+ }
- if (!IS_ERR(msp->clk)) {
- clk_disable_unprepare(msp->clk);
- clk_put(msp->clk);
+ if (!IS_ERR(xordev->clk)) {
+ clk_disable_unprepare(xordev->clk);
+ clk_put(xordev->clk);
}
return 0;
}
-static struct platform_driver mv_xor_shared_driver = {
- .probe = mv_xor_shared_probe,
- .remove = mv_xor_shared_remove,
+#ifdef CONFIG_OF
+static struct of_device_id mv_xor_dt_ids[] = {
+ { .compatible = "marvell,orion-xor", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, mv_xor_dt_ids);
+#endif
+
+static struct platform_driver mv_xor_driver = {
+ .probe = mv_xor_probe,
+ .remove = mv_xor_remove,
.driver = {
- .owner = THIS_MODULE,
- .name = MV_XOR_SHARED_NAME,
+ .owner = THIS_MODULE,
+ .name = MV_XOR_NAME,
+ .of_match_table = of_match_ptr(mv_xor_dt_ids),
},
};
static int __init mv_xor_init(void)
{
- int rc;
-
- rc = platform_driver_register(&mv_xor_shared_driver);
- if (!rc) {
- rc = platform_driver_register(&mv_xor_driver);
- if (rc)
- platform_driver_unregister(&mv_xor_shared_driver);
- }
- return rc;
+ return platform_driver_register(&mv_xor_driver);
}
module_init(mv_xor_init);
@@ -1359,7 +1419,6 @@ module_init(mv_xor_init);
static void __exit mv_xor_exit(void)
{
platform_driver_unregister(&mv_xor_driver);
- platform_driver_unregister(&mv_xor_shared_driver);
return;
}
diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h
index a5b422f5a8a..c632a4761fc 100644
--- a/drivers/dma/mv_xor.h
+++ b/drivers/dma/mv_xor.h
@@ -24,8 +24,10 @@
#include <linux/interrupt.h>
#define USE_TIMER
+#define MV_XOR_POOL_SIZE PAGE_SIZE
#define MV_XOR_SLOT_SIZE 64
#define MV_XOR_THRESHOLD 1
+#define MV_XOR_MAX_CHANNELS 2
#define XOR_OPERATION_MODE_XOR 0
#define XOR_OPERATION_MODE_MEMCPY 2
@@ -51,29 +53,13 @@
#define WINDOW_SIZE(w) (0x270 + ((w) << 2))
#define WINDOW_REMAP_HIGH(w) (0x290 + ((w) << 2))
#define WINDOW_BAR_ENABLE(chan) (0x240 + ((chan) << 2))
+#define WINDOW_OVERRIDE_CTRL(chan) (0x2A0 + ((chan) << 2))
-struct mv_xor_shared_private {
- void __iomem *xor_base;
- void __iomem *xor_high_base;
- struct clk *clk;
-};
-
-
-/**
- * struct mv_xor_device - internal representation of a XOR device
- * @pdev: Platform device
- * @id: HW XOR Device selector
- * @dma_desc_pool: base of DMA descriptor region (DMA address)
- * @dma_desc_pool_virt: base of DMA descriptor region (CPU address)
- * @common: embedded struct dma_device
- */
struct mv_xor_device {
- struct platform_device *pdev;
- int id;
- dma_addr_t dma_desc_pool;
- void *dma_desc_pool_virt;
- struct dma_device common;
- struct mv_xor_shared_private *shared;
+ void __iomem *xor_base;
+ void __iomem *xor_high_base;
+ struct clk *clk;
+ struct mv_xor_chan *channels[MV_XOR_MAX_CHANNELS];
};
/**
@@ -96,11 +82,15 @@ struct mv_xor_chan {
spinlock_t lock; /* protects the descriptor slot pool */
void __iomem *mmr_base;
unsigned int idx;
+ int irq;
enum dma_transaction_type current_type;
struct list_head chain;
struct list_head completed_slots;
- struct mv_xor_device *device;
- struct dma_chan common;
+ dma_addr_t dma_desc_pool;
+ void *dma_desc_pool_virt;
+ size_t pool_size;
+ struct dma_device dmadev;
+ struct dma_chan dmachan;
struct mv_xor_desc_slot *last_used;
struct list_head all_slots;
int slots_allocated;
diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index bb2d8e7029e..5a31264f2bd 100644
--- a/drivers/dma/omap-dma.c
+++ b/drivers/dma/omap-dma.c
@@ -19,9 +19,6 @@
#include "virt-dma.h"
-#include <plat/cpu.h>
-#include <plat/dma.h>
-
struct omap_dmadev {
struct dma_device ddev;
spinlock_t lock;
@@ -438,7 +435,7 @@ static struct dma_async_tx_descriptor *omap_dma_prep_dma_cyclic(
omap_disable_dma_irq(c->dma_ch, OMAP_DMA_BLOCK_IRQ);
}
- if (!cpu_class_is_omap1()) {
+ if (dma_omap2plus()) {
omap_set_dma_src_burst_mode(c->dma_ch, OMAP_DMA_DATA_BURST_16);
omap_set_dma_dest_burst_mode(c->dma_ch, OMAP_DMA_DATA_BURST_16);
}
diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c
index 987ab5cd261..eca1c4ddf03 100644
--- a/drivers/dma/pch_dma.c
+++ b/drivers/dma/pch_dma.c
@@ -843,7 +843,7 @@ static int pch_dma_resume(struct pci_dev *pdev)
}
#endif
-static int __devinit pch_dma_probe(struct pci_dev *pdev,
+static int pch_dma_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
struct pch_dma *pd;
@@ -1022,7 +1022,7 @@ static struct pci_driver pch_dma_driver = {
.name = DRV_NAME,
.id_table = pch_dma_id_table,
.probe = pch_dma_probe,
- .remove = __devexit_p(pch_dma_remove),
+ .remove = pch_dma_remove,
#ifdef CONFIG_PM
.suspend = pch_dma_suspend,
.resume = pch_dma_resume,
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 665668b6f2b..95555f37ea6 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2851,7 +2851,7 @@ static irqreturn_t pl330_irq_handler(int irq, void *data)
return IRQ_NONE;
}
-static int __devinit
+static int
pl330_probe(struct amba_device *adev, const struct amba_id *id)
{
struct dma_pl330_platdata *pdat;
diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index f72348d0bc4..b94afc339e7 100644
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -4361,7 +4361,7 @@ static void ppc440spe_adma_release_irqs(struct ppc440spe_adma_device *adev,
/**
* ppc440spe_adma_probe - probe the asynch device
*/
-static int __devinit ppc440spe_adma_probe(struct platform_device *ofdev)
+static int ppc440spe_adma_probe(struct platform_device *ofdev)
{
struct device_node *np = ofdev->dev.of_node;
struct resource res;
@@ -4914,7 +4914,7 @@ MODULE_DEVICE_TABLE(of, ppc440spe_adma_of_match);
static struct platform_driver ppc440spe_adma_driver = {
.probe = ppc440spe_adma_probe,
- .remove = __devexit_p(ppc440spe_adma_remove),
+ .remove = ppc440spe_adma_remove,
.driver = {
.name = "PPC440SP(E)-ADMA",
.owner = THIS_MODULE,
diff --git a/drivers/dma/sa11x0-dma.c b/drivers/dma/sa11x0-dma.c
index b893159c1ec..2ad628df822 100644
--- a/drivers/dma/sa11x0-dma.c
+++ b/drivers/dma/sa11x0-dma.c
@@ -826,7 +826,7 @@ static const struct sa11x0_dma_channel_desc chan_desc[] = {
CD(Ser4SSPRc, DDAR_RW),
};
-static int __devinit sa11x0_dma_init_dmadev(struct dma_device *dmadev,
+static int sa11x0_dma_init_dmadev(struct dma_device *dmadev,
struct device *dev)
{
unsigned i;
@@ -891,7 +891,7 @@ static void sa11x0_dma_free_channels(struct dma_device *dmadev)
}
}
-static int __devinit sa11x0_dma_probe(struct platform_device *pdev)
+static int sa11x0_dma_probe(struct platform_device *pdev)
{
struct sa11x0_dma_dev *d;
struct resource *res;
@@ -1072,7 +1072,7 @@ static struct platform_driver sa11x0_dma_driver = {
.pm = &sa11x0_dma_pm_ops,
},
.probe = sa11x0_dma_probe,
- .remove = __devexit_p(sa11x0_dma_remove),
+ .remove = sa11x0_dma_remove,
};
bool sa11x0_dma_filter_fn(struct dma_chan *chan, void *param)
diff --git a/drivers/dma/sh/shdma.c b/drivers/dma/sh/shdma.c
index f41bcc5267f..8201bb4e0cd 100644
--- a/drivers/dma/sh/shdma.c
+++ b/drivers/dma/sh/shdma.c
@@ -483,7 +483,7 @@ static struct notifier_block sh_dmae_nmi_notifier __read_mostly = {
.priority = 1,
};
-static int __devinit sh_dmae_chan_probe(struct sh_dmae_device *shdev, int id,
+static int sh_dmae_chan_probe(struct sh_dmae_device *shdev, int id,
int irq, unsigned long flags)
{
const struct sh_dmae_channel *chan_pdata = &shdev->pdata->channel[id];
@@ -646,7 +646,7 @@ static const struct shdma_ops sh_dmae_shdma_ops = {
.get_partial = sh_dmae_get_partial,
};
-static int __devinit sh_dmae_probe(struct platform_device *pdev)
+static int sh_dmae_probe(struct platform_device *pdev)
{
struct sh_dmae_pdata *pdata = pdev->dev.platform_data;
unsigned long irqflags = IRQF_DISABLED,
@@ -926,7 +926,7 @@ static struct platform_driver sh_dmae_driver = {
.pm = &sh_dmae_pm,
.name = SH_DMAE_DRV_NAME,
},
- .remove = __devexit_p(sh_dmae_remove),
+ .remove = sh_dmae_remove,
.shutdown = sh_dmae_shutdown,
};
diff --git a/drivers/dma/sirf-dma.c b/drivers/dma/sirf-dma.c
index d451caace80..c3de6edb965 100644
--- a/drivers/dma/sirf-dma.c
+++ b/drivers/dma/sirf-dma.c
@@ -550,7 +550,7 @@ bool sirfsoc_dma_filter_id(struct dma_chan *chan, void *chan_id)
}
EXPORT_SYMBOL(sirfsoc_dma_filter_id);
-static int __devinit sirfsoc_dma_probe(struct platform_device *op)
+static int sirfsoc_dma_probe(struct platform_device *op)
{
struct device_node *dn = op->dev.of_node;
struct device *dev = &op->dev;
@@ -673,7 +673,7 @@ static struct of_device_id sirfsoc_dma_match[] = {
static struct platform_driver sirfsoc_dma_driver = {
.probe = sirfsoc_dma_probe,
- .remove = __devexit_p(sirfsoc_dma_remove),
+ .remove = sirfsoc_dma_remove,
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index ae55091c227..23c5573e62d 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -19,8 +19,7 @@
#include <linux/err.h>
#include <linux/amba/bus.h>
#include <linux/regulator/consumer.h>
-
-#include <plat/ste_dma40.h>
+#include <linux/platform_data/dma-ste-dma40.h>
#include "dmaengine.h"
#include "ste_dma40_ll.h"
diff --git a/drivers/dma/ste_dma40_ll.c b/drivers/dma/ste_dma40_ll.c
index cad9e1daedf..851ad56e840 100644
--- a/drivers/dma/ste_dma40_ll.c
+++ b/drivers/dma/ste_dma40_ll.c
@@ -6,7 +6,7 @@
*/
#include <linux/kernel.h>
-#include <plat/ste_dma40.h>
+#include <linux/platform_data/dma-ste-dma40.h>
#include "ste_dma40_ll.h"
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index 528c62dd4b0..efdfffa1334 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -1197,7 +1197,7 @@ static const struct of_device_id tegra_dma_of_match[] __devinitconst = {
MODULE_DEVICE_TABLE(of, tegra_dma_of_match);
#endif
-static int __devinit tegra_dma_probe(struct platform_device *pdev)
+static int tegra_dma_probe(struct platform_device *pdev)
{
struct resource *res;
struct tegra_dma *tdma;
@@ -1418,7 +1418,7 @@ static struct platform_driver tegra_dmac_driver = {
.of_match_table = of_match_ptr(tegra_dma_of_match),
},
.probe = tegra_dma_probe,
- .remove = __devexit_p(tegra_dma_remove),
+ .remove = tegra_dma_remove,
};
module_platform_driver(tegra_dmac_driver);
diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c
index 4e0dff59901..98cf51e1544 100644
--- a/drivers/dma/timb_dma.c
+++ b/drivers/dma/timb_dma.c
@@ -667,7 +667,7 @@ static irqreturn_t td_irq(int irq, void *devid)
}
-static int __devinit td_probe(struct platform_device *pdev)
+static int td_probe(struct platform_device *pdev)
{
struct timb_dma_platform_data *pdata = pdev->dev.platform_data;
struct timb_dma *td;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-01-01 15:00:42 +0000