drm/mga: drop dependency on drm_os_linux.h

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@ravnborg.org>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>
Link: https://patchwork.freedesktop.org/patch/msgid/20190623103542.30697-2-sam@ravnborg.org

1 files changed, 7 insertions, 4 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@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;
 	}