[PATCH v2 1/4] drm/mga: drop dependency on drm_os_linux.h
Sam Ravnborg
sam at ravnborg.org
Sun Jun 23 10:35:39 UTC 2019
Opencode all macros used from the deprecated drm_os_linux.h header file.
The DRM_WAIT_ON used 3 * HZ as timeout.
This was translated to 3000 msec.
The return value of mga_driver_fence_wait() was not
used, so make it return void to simplify code a bit.
v2:
- fixed timeout to 3000 msec (original value was 3 * Hz)
- drop unused return value from mga_driver_fence_wait()
Signed-off-by: Sam Ravnborg <sam at ravnborg.org>
Acked-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Daniel Vetter <daniel at ffwll.ch>
Cc: David Airlie <airlied at linux.ie>
---
drivers/gpu/drm/mga/mga_dma.c | 11 +++++++----
drivers/gpu/drm/mga/mga_drv.h | 14 +++++++++-----
drivers/gpu/drm/mga/mga_irq.c | 10 ++++------
drivers/gpu/drm/mga/mga_state.c | 6 +++---
4 files changed, 23 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/mga/mga_dma.c b/drivers/gpu/drm/mga/mga_dma.c
index 1ffdafea27e4..c5e7c210999f 100644
--- a/drivers/gpu/drm/mga/mga_dma.c
+++ b/drivers/gpu/drm/mga/mga_dma.c
@@ -35,6 +35,8 @@
* \author Gareth Hughes <gareth at valinux.com>
*/
+#include <linux/delay.h>
+
#include <drm/drmP.h>
#include <drm/mga_drm.h>
#include "mga_drv.h"
@@ -62,7 +64,7 @@ int mga_do_wait_for_idle(drm_mga_private_t *dev_priv)
MGA_WRITE8(MGA_CRTC_INDEX, 0);
return 0;
}
- DRM_UDELAY(1);
+ udelay(1);
}
#if MGA_DMA_DEBUG
@@ -114,7 +116,7 @@ void mga_do_dma_flush(drm_mga_private_t *dev_priv)
status = MGA_READ(MGA_STATUS) & MGA_ENGINE_IDLE_MASK;
if (status == MGA_ENDPRDMASTS)
break;
- DRM_UDELAY(1);
+ udelay(1);
}
if (primary->tail == primary->last_flush) {
@@ -1120,7 +1122,7 @@ int mga_dma_buffers(struct drm_device *dev, void *data,
*/
if (d->send_count != 0) {
DRM_ERROR("Process %d trying to send %d buffers via drmDMA\n",
- DRM_CURRENTPID, d->send_count);
+ task_pid_nr(current), d->send_count);
return -EINVAL;
}
@@ -1128,7 +1130,8 @@ int mga_dma_buffers(struct drm_device *dev, void *data,
*/
if (d->request_count < 0 || d->request_count > dma->buf_count) {
DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n",
- DRM_CURRENTPID, d->request_count, dma->buf_count);
+ task_pid_nr(current), d->request_count,
+ dma->buf_count);
return -EINVAL;
}
diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h
index a45bb22275a7..1766c195b397 100644
--- a/drivers/gpu/drm/mga/mga_drv.h
+++ b/drivers/gpu/drm/mga/mga_drv.h
@@ -188,7 +188,7 @@ extern int mga_warp_init(drm_mga_private_t *dev_priv);
extern int mga_enable_vblank(struct drm_device *dev, unsigned int pipe);
extern void mga_disable_vblank(struct drm_device *dev, unsigned int pipe);
extern u32 mga_get_vblank_counter(struct drm_device *dev, unsigned int pipe);
-extern int mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence);
+extern void mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence);
extern int mga_driver_vblank_wait(struct drm_device *dev, unsigned int *sequence);
extern irqreturn_t mga_driver_irq_handler(int irq, void *arg);
extern void mga_driver_irq_preinstall(struct drm_device *dev);
@@ -199,10 +199,14 @@ extern long mga_compat_ioctl(struct file *filp, unsigned int cmd,
#define mga_flush_write_combine() wmb()
-#define MGA_READ8(reg) DRM_READ8(dev_priv->mmio, (reg))
-#define MGA_READ(reg) DRM_READ32(dev_priv->mmio, (reg))
-#define MGA_WRITE8(reg, val) DRM_WRITE8(dev_priv->mmio, (reg), (val))
-#define MGA_WRITE(reg, val) DRM_WRITE32(dev_priv->mmio, (reg), (val))
+#define MGA_READ8(reg) \
+ readb(((void __iomem *)dev_priv->mmio->handle) + (reg))
+#define MGA_READ(reg) \
+ readl(((void __iomem *)dev_priv->mmio->handle) + (reg))
+#define MGA_WRITE8(reg, val) \
+ writeb(val, ((void __iomem *)dev_priv->mmio->handle) + (reg))
+#define MGA_WRITE(reg, val) \
+ writel(val, ((void __iomem *)dev_priv->mmio->handle) + (reg))
#define DWGREG0 0x1c00
#define DWGREG0_END 0x1dff
diff --git a/drivers/gpu/drm/mga/mga_irq.c b/drivers/gpu/drm/mga/mga_irq.c
index 693ba708cfed..1545a3694b53 100644
--- a/drivers/gpu/drm/mga/mga_irq.c
+++ b/drivers/gpu/drm/mga/mga_irq.c
@@ -118,23 +118,21 @@ void mga_disable_vblank(struct drm_device *dev, unsigned int pipe)
/* MGA_WRITE(MGA_IEN, MGA_VLINEIEN | MGA_SOFTRAPEN); */
}
-int mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence)
+void mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence)
{
drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private;
unsigned int cur_fence;
- int ret = 0;
/* Assume that the user has missed the current sequence number
* by about a day rather than she wants to wait for years
* using fences.
*/
- DRM_WAIT_ON(ret, dev_priv->fence_queue, 3 * HZ,
+ wait_event_timeout(dev_priv->fence_queue,
(((cur_fence = atomic_read(&dev_priv->last_fence_retired))
- - *sequence) <= (1 << 23)));
+ - *sequence) <= (1 << 23)),
+ msecs_to_jiffies(3000));
*sequence = cur_fence;
-
- return ret;
}
void mga_driver_irq_preinstall(struct drm_device *dev)
diff --git a/drivers/gpu/drm/mga/mga_state.c b/drivers/gpu/drm/mga/mga_state.c
index e5f6b735f575..296a1db7e5ee 100644
--- a/drivers/gpu/drm/mga/mga_state.c
+++ b/drivers/gpu/drm/mga/mga_state.c
@@ -1016,7 +1016,7 @@ int mga_getparam(struct drm_device *dev, void *data, struct drm_file *file_priv)
return -EINVAL;
}
- DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
+ DRM_DEBUG("pid=%d\n", task_pid_nr(current));
switch (param->param) {
case MGA_PARAM_IRQ_NR:
@@ -1048,7 +1048,7 @@ static int mga_set_fence(struct drm_device *dev, void *data, struct drm_file *fi
return -EINVAL;
}
- DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
+ DRM_DEBUG("pid=%d\n", task_pid_nr(current));
/* I would normal do this assignment in the declaration of fence,
* but dev_priv may be NULL.
@@ -1077,7 +1077,7 @@ file_priv)
return -EINVAL;
}
- DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
+ DRM_DEBUG("pid=%d\n", task_pid_nr(current));
mga_driver_fence_wait(dev, fence);
return 0;
--
2.20.1
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