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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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coresight: etb10: Clean up device specific data
Track the coresight device instead of the real device. Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -66,7 +66,6 @@
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/**
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* struct etb_drvdata - specifics associated to an ETB component
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* @base: memory mapped base address for this component.
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* @dev: the device entity associated to this component.
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* @atclk: optional clock for the core parts of the ETB.
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* @csdev: component vitals needed by the framework.
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* @miscdev: specifics to handle "/dev/xyz.etb" entry.
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@ -81,7 +80,6 @@
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*/
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struct etb_drvdata {
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void __iomem *base;
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struct device *dev;
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struct clk *atclk;
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struct coresight_device *csdev;
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struct miscdevice miscdev;
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@ -227,7 +225,6 @@ static int etb_enable_perf(struct coresight_device *csdev, void *data)
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static int etb_enable(struct coresight_device *csdev, u32 mode, void *data)
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{
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int ret;
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struct etb_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
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switch (mode) {
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case CS_MODE_SYSFS:
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@ -244,13 +241,14 @@ static int etb_enable(struct coresight_device *csdev, u32 mode, void *data)
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if (ret)
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return ret;
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dev_dbg(drvdata->dev, "ETB enabled\n");
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dev_dbg(&csdev->dev, "ETB enabled\n");
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return 0;
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}
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static void __etb_disable_hw(struct etb_drvdata *drvdata)
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{
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u32 ffcr;
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struct device *dev = &drvdata->csdev->dev;
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CS_UNLOCK(drvdata->base);
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@ -263,7 +261,7 @@ static void __etb_disable_hw(struct etb_drvdata *drvdata)
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writel_relaxed(ffcr, drvdata->base + ETB_FFCR);
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if (coresight_timeout(drvdata->base, ETB_FFCR, ETB_FFCR_BIT, 0)) {
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dev_err(drvdata->dev,
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dev_err(dev,
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"timeout while waiting for completion of Manual Flush\n");
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}
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@ -271,7 +269,7 @@ static void __etb_disable_hw(struct etb_drvdata *drvdata)
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writel_relaxed(0x0, drvdata->base + ETB_CTL_REG);
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if (coresight_timeout(drvdata->base, ETB_FFSR, ETB_FFSR_BIT, 1)) {
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dev_err(drvdata->dev,
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dev_err(dev,
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"timeout while waiting for Formatter to Stop\n");
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}
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@ -286,6 +284,7 @@ static void etb_dump_hw(struct etb_drvdata *drvdata)
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u32 read_data, depth;
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u32 read_ptr, write_ptr;
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u32 frame_off, frame_endoff;
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struct device *dev = &drvdata->csdev->dev;
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CS_UNLOCK(drvdata->base);
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@ -295,10 +294,10 @@ static void etb_dump_hw(struct etb_drvdata *drvdata)
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frame_off = write_ptr % ETB_FRAME_SIZE_WORDS;
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frame_endoff = ETB_FRAME_SIZE_WORDS - frame_off;
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if (frame_off) {
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dev_err(drvdata->dev,
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dev_err(dev,
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"write_ptr: %lu not aligned to formatter frame size\n",
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(unsigned long)write_ptr);
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dev_err(drvdata->dev, "frameoff: %lu, frame_endoff: %lu\n",
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dev_err(dev, "frameoff: %lu, frame_endoff: %lu\n",
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(unsigned long)frame_off, (unsigned long)frame_endoff);
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write_ptr += frame_endoff;
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}
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@ -365,7 +364,7 @@ static int etb_disable(struct coresight_device *csdev)
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drvdata->mode = CS_MODE_DISABLED;
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spin_unlock_irqrestore(&drvdata->spinlock, flags);
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dev_dbg(drvdata->dev, "ETB disabled\n");
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dev_dbg(&csdev->dev, "ETB disabled\n");
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return 0;
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}
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@ -460,7 +459,7 @@ static unsigned long etb_update_buffer(struct coresight_device *csdev,
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* chance to fix things.
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*/
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if (write_ptr % ETB_FRAME_SIZE_WORDS) {
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dev_err(drvdata->dev,
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dev_err(&csdev->dev,
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"write_ptr: %lu not aligned to formatter frame size\n",
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(unsigned long)write_ptr);
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@ -594,7 +593,7 @@ static void etb_dump(struct etb_drvdata *drvdata)
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}
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spin_unlock_irqrestore(&drvdata->spinlock, flags);
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dev_dbg(drvdata->dev, "ETB dumped\n");
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dev_dbg(&drvdata->csdev->dev, "ETB dumped\n");
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}
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static int etb_open(struct inode *inode, struct file *file)
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@ -605,7 +604,7 @@ static int etb_open(struct inode *inode, struct file *file)
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if (local_cmpxchg(&drvdata->reading, 0, 1))
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return -EBUSY;
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dev_dbg(drvdata->dev, "%s: successfully opened\n", __func__);
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dev_dbg(&drvdata->csdev->dev, "%s: successfully opened\n", __func__);
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return 0;
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}
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@ -615,6 +614,7 @@ static ssize_t etb_read(struct file *file, char __user *data,
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u32 depth;
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struct etb_drvdata *drvdata = container_of(file->private_data,
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struct etb_drvdata, miscdev);
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struct device *dev = &drvdata->csdev->dev;
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etb_dump(drvdata);
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@ -623,13 +623,14 @@ static ssize_t etb_read(struct file *file, char __user *data,
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len = depth * 4 - *ppos;
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if (copy_to_user(data, drvdata->buf + *ppos, len)) {
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dev_dbg(drvdata->dev, "%s: copy_to_user failed\n", __func__);
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dev_dbg(dev,
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"%s: copy_to_user failed\n", __func__);
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return -EFAULT;
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}
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*ppos += len;
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dev_dbg(drvdata->dev, "%s: %zu bytes copied, %d bytes left\n",
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dev_dbg(dev, "%s: %zu bytes copied, %d bytes left\n",
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__func__, len, (int)(depth * 4 - *ppos));
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return len;
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}
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@ -640,7 +641,7 @@ static int etb_release(struct inode *inode, struct file *file)
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struct etb_drvdata, miscdev);
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local_set(&drvdata->reading, 0);
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dev_dbg(drvdata->dev, "%s: released\n", __func__);
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dev_dbg(&drvdata->csdev->dev, "%s: released\n", __func__);
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return 0;
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}
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@ -744,7 +745,6 @@ static int etb_probe(struct amba_device *adev, const struct amba_id *id)
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if (!drvdata)
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return -ENOMEM;
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drvdata->dev = &adev->dev;
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drvdata->atclk = devm_clk_get(&adev->dev, "atclk"); /* optional */
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if (!IS_ERR(drvdata->atclk)) {
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ret = clk_prepare_enable(drvdata->atclk);
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