Hi
Am 29.06.19 um 19:59 schrieb Sam Ravnborg:
> Hi all.
>
>> 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()
>
> Thomas give his ack on v1 of this patch.
> But I am reluctant to apply it until someone has looked at this version.
> The main difference is a s described above, where the change to 3000
> msec was a bug in v1.
>
> Any feedback?
Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
as well. Thanks for spotting the bug.
Best regards
Thomas
>
> Sam
>
>>
>> Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
>> Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
>> Cc: Daniel Vetter <daniel@xxxxxxxx>
>> Cc: David Airlie <airlied@xxxxxxxx>
>> ---
>> 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@xxxxxxxxxxx>
>> */
>>
>> +#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
>>
>> _______________________________________________
>> dri-devel mailing list
>> dri-devel@xxxxxxxxxxxxxxxxxxxxx
>> https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Linux GmbH, Maxfeldstrasse 5, 90409 Nuernberg, Germany
GF: Felix Imendörffer, Mary Higgins, Sri Rasiah
HRB 21284 (AG Nürnberg)
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