drm/gma500: Never wait for blits

Blits cannot happen anymore since we removed the 2d accel code. Stop
checking for a busy blitter and remove the remaining blitter code.

Signed-off-by: Patrik Jakobsson <[email protected]>
Reviewed-by: Thomas Zimmermann <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

Author: patjak

drivers/gpu/drm/gma500/Makefile

@@ -5,7 +5,6 @@
 
 gma500_gfx-y += \
 	  backlight.o \
-	  blitter.o \
 	  cdv_device.o \
 	  cdv_intel_crt.o \
 	  cdv_intel_display.o \

drivers/gpu/drm/gma500/blitter.c

@@ -11,7 +11,6 @@
 
 #include <asm/set_memory.h>
 
-#include "blitter.h"
 #include "psb_drv.h"
 
 
@@ -229,18 +228,9 @@ void psb_gtt_unpin(struct gtt_range *gt)
 	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--;
@@ -251,7 +241,6 @@ void psb_gtt_unpin(struct gtt_range *gt)
 		psb_gtt_detach_pages(gt);
 	}
 
-out:
 	mutex_unlock(&dev_priv->gtt_mutex);
 }