diff options
Diffstat (limited to 'drivers/gpu/drm/gma500/blitter.c')
| -rw-r--r-- | drivers/gpu/drm/gma500/blitter.c | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/drivers/gpu/drm/gma500/blitter.c b/drivers/gpu/drm/gma500/blitter.c deleted file mode 100644 index cb2504a4a15f..000000000000 --- a/drivers/gpu/drm/gma500/blitter.c +++ /dev/null @@ -1,43 +0,0 @@ -// 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; -} |