+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2014, Patrik Jakobsson
- * All Rights Reserved.
- *
- * Authors: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
- */
-
-#include "psb_drv.h"
-
-#include "blitter.h"
-#include "psb_reg.h"
-
-/* Wait for the blitter to be completely idle */
-int gma_blt_wait_idle(struct drm_psb_private *dev_priv)
-{
- unsigned long stop = jiffies + HZ;
- int busy = 1;
-
- /* NOP for Cedarview */
- if (IS_CDV(dev_priv->dev))
- return 0;
-
- /* First do a quick check */
- if ((PSB_RSGX32(PSB_CR_2D_SOCIF) == _PSB_C2_SOCIF_EMPTY) &&
- ((PSB_RSGX32(PSB_CR_2D_BLIT_STATUS) & _PSB_C2B_STATUS_BUSY) == 0))
- return 0;
-
- do {
- busy = (PSB_RSGX32(PSB_CR_2D_SOCIF) != _PSB_C2_SOCIF_EMPTY);
- } while (busy && !time_after_eq(jiffies, stop));
-
- if (busy)
- return -EBUSY;
-
- do {
- busy = ((PSB_RSGX32(PSB_CR_2D_BLIT_STATUS) &
- _PSB_C2B_STATUS_BUSY) != 0);
- } while (busy && !time_after_eq(jiffies, stop));
-
- /* If still busy, we probably have a hang */
- return (busy) ? -EBUSY : 0;
-}
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (c) 2014, Patrik Jakobsson
- * All Rights Reserved.
- *
- * Authors: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
- */
-
-#ifndef __BLITTER_H
-#define __BLITTER_H
-
-struct drm_psb_private;
-
-extern int gma_blt_wait_idle(struct drm_psb_private *dev_priv);
-
-#endif
#include <asm/set_memory.h>
-#include "blitter.h"
#include "psb_drv.h"
struct drm_device *dev = gt->gem.dev;
struct drm_psb_private *dev_priv = dev->dev_private;
u32 gpu_base = dev_priv->gtt.gatt_start;
- int ret;
- /* While holding the gtt_mutex no new blits can be initiated */
mutex_lock(&dev_priv->gtt_mutex);
- /* Wait for any possible usage of the memory to be finished */
- ret = gma_blt_wait_idle(dev_priv);
- if (ret) {
- DRM_ERROR("Failed to idle the blitter, unpin failed!");
- goto out;
- }
-
WARN_ON(!gt->in_gart);
gt->in_gart--;
psb_gtt_detach_pages(gt);
}
-out:
mutex_unlock(&dev_priv->gtt_mutex);
}