Merge branch 'master'; commit 'v3.2-rc2' into next

1 files changed, 77 insertions, 15 deletions

diff --git a/drivers/staging/gma500/framebuffer.c b/drivers/staging/gma500/framebuffer.c
index ebfde13ec18f..3f39a37456fc 100644
--- a/drivers/staging/gma500/framebuffer.c
+++ b/drivers/staging/gma500/framebuffer.c
@@ -37,6 +37,7 @@
 #include "psb_intel_reg.h"
 #include "psb_intel_drv.h"
 #include "framebuffer.h"
+#include "gtt.h"
 
 #include "mdfld_output.h"
 
@@ -91,6 +92,21 @@ static int psbfb_setcolreg(unsigned regno, unsigned red, unsigned green,
 	return 0;
 }
 
+static int psbfb_pan(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+	struct psb_fbdev *fbdev = info->par;
+	struct psb_framebuffer *psbfb = &fbdev->pfb;
+	struct drm_device *dev = psbfb->base.dev;
+
+	/*
+	 *	We have to poke our nose in here. The core fb code assumes
+	 *	panning is part of the hardware that can be invoked before
+	 *	the actual fb is mapped. In our case that isn't quite true.
+	 */
+	if (psbfb->gtt->npage)
+        	psb_gtt_roll(dev, psbfb->gtt, var->yoffset);
+	return 0;
+}
 
 void psbfb_suspend(struct drm_device *dev)
 {
@@ -217,6 +233,21 @@ static struct fb_ops psbfb_ops = {
 	.fb_ioctl = psbfb_ioctl,
 };
 
+static struct fb_ops psbfb_roll_ops = {
+	.owner = THIS_MODULE,
+	.fb_check_var = drm_fb_helper_check_var,
+	.fb_set_par = drm_fb_helper_set_par,
+	.fb_blank = drm_fb_helper_blank,
+	.fb_setcolreg = psbfb_setcolreg,
+	.fb_fillrect = cfb_fillrect,
+	.fb_copyarea = cfb_copyarea,
+	.fb_imageblit = cfb_imageblit,
+	.fb_pan_display = psbfb_pan,
+	.fb_mmap = psbfb_mmap,
+	.fb_sync = psbfb_sync,
+	.fb_ioctl = psbfb_ioctl,
+};
+
 static struct fb_ops psbfb_unaccel_ops = {
 	.owner = THIS_MODULE,
 	.fb_check_var = drm_fb_helper_check_var,
@@ -304,6 +335,7 @@ static struct drm_framebuffer *psb_framebuffer_create
  *	psbfb_alloc		-	allocate frame buffer memory
  *	@dev: the DRM device
  *	@aligned_size: space needed
+ *	@force: fall back to GEM buffers if need be
  *
  *	Allocate the frame buffer. In the usual case we get a GTT range that
  *	is stolen memory backed and life is simple. If there isn't sufficient
@@ -311,11 +343,9 @@ static struct drm_framebuffer *psb_framebuffer_create
  *	and back it with a GEM object.
  *
  *	In this case the GEM object has no handle.
- *
- *	FIXME: console speed up - allocate twice the space if room and use
- *	hardware scrolling for acceleration.
  */
-static struct gtt_range *psbfb_alloc(struct drm_device *dev, int aligned_size)
+static struct gtt_range *psbfb_alloc(struct drm_device *dev,
+						int aligned_size, int force)
 {
 	struct gtt_range *backing;
 	/* Begin by trying to use stolen memory backing */
@@ -326,6 +356,9 @@ static struct gtt_range *psbfb_alloc(struct drm_device *dev, int aligned_size)
 			return backing;
 		psb_gtt_free_range(dev, backing);
 	}
+	if (!force)
+		return NULL;
+
 	/* Next try using GEM host memory */
 	backing = psb_gtt_alloc_range(dev, aligned_size, "fb(gem)", 0);
 	if (backing == NULL)
@@ -359,6 +392,7 @@ static int psbfb_create(struct psb_fbdev *fbdev,
 	int size;
 	int ret;
 	struct gtt_range *backing;
+	int gtt_roll = 1;
 
 	mode_cmd.width = sizes->surface_width;
 	mode_cmd.height = sizes->surface_height;
@@ -368,17 +402,37 @@ static int psbfb_create(struct psb_fbdev *fbdev,
 	if (mode_cmd.bpp == 24)
 		mode_cmd.bpp = 32;
 
-	/* HW requires pitch to be 64 byte aligned */
-	mode_cmd.pitch =  ALIGN(mode_cmd.width * ((mode_cmd.bpp + 7) / 8), 64);
+	/* Acceleration via the GTT requires pitch to be 4096 byte aligned 
+	   (ie 1024 or 2048 pixels in normal use) */
+	mode_cmd.pitch =  ALIGN(mode_cmd.width * ((mode_cmd.bpp + 7) / 8), 4096);
 	mode_cmd.depth = sizes->surface_depth;
 
 	size = mode_cmd.pitch * mode_cmd.height;
 	size = ALIGN(size, PAGE_SIZE);
 
 	/* Allocate the framebuffer in the GTT with stolen page backing */
-	backing = psbfb_alloc(dev, size);
-	if (backing == NULL)
-		return -ENOMEM;
+	backing = psbfb_alloc(dev, size, 0);
+	if (backing == NULL) {
+		/*
+		 *	We couldn't get the space we wanted, fall back to the
+		 *	display engine requirement instead.  The HW requires
+		 *	the pitch to be 64 byte aligned
+		 */
+
+		gtt_roll = 0;	/* Don't use GTT accelerated scrolling */
+
+		mode_cmd.pitch =  ALIGN(mode_cmd.width * ((mode_cmd.bpp + 7) / 8), 64);
+		mode_cmd.depth = sizes->surface_depth;
+
+		size = mode_cmd.pitch * mode_cmd.height;
+		size = ALIGN(size, PAGE_SIZE);
+
+		/* Allocate the framebuffer in the GTT with stolen page
+		   backing when there is room */
+		backing = psbfb_alloc(dev, size, 1);
+		if (backing == NULL)
+			return -ENOMEM;
+	}
 
 	mutex_lock(&dev->struct_mutex);
 
@@ -402,11 +456,14 @@ static int psbfb_create(struct psb_fbdev *fbdev,
 	strcpy(info->fix.id, "psbfb");
 
 	info->flags = FBINFO_DEFAULT;
-	/* No 2D engine */
-	if (!dev_priv->ops->accel_2d)
-		info->fbops = &psbfb_unaccel_ops;
-	else
+	if (gtt_roll) {	/* GTT rolling seems best */
+		info->fbops = &psbfb_roll_ops;
+		info->flags |= FBINFO_HWACCEL_YPAN;
+        }
+	else if (dev_priv->ops->accel_2d)	/* 2D engine */
 		info->fbops = &psbfb_ops;
+	else	/* Software */
+		info->fbops = &psbfb_unaccel_ops;
 
 	ret = fb_alloc_cmap(&info->cmap, 256, 0);
 	if (ret) {
@@ -416,6 +473,8 @@ static int psbfb_create(struct psb_fbdev *fbdev,
 
 	info->fix.smem_start = dev->mode_config.fb_base;
 	info->fix.smem_len = size;
+	info->fix.ywrapstep = gtt_roll;
+	info->fix.ypanstep = gtt_roll;
 
 	if (backing->stolen) {
 		/* Accessed stolen memory directly */
@@ -733,9 +792,12 @@ static void psb_setup_outputs(struct drm_device *dev)
 			clone_mask = (1 << INTEL_OUTPUT_MIPI2);
 			break;
 		case INTEL_OUTPUT_HDMI:
-			if (IS_MFLD(dev))
+		        /* HDMI on crtc 1 for SoC devices and crtc 0 for
+                           Cedarview. HDMI on Poulsbo is only via external
+			   logic */
+			if (IS_MFLD(dev) || IS_MRST(dev))
 				crtc_mask = (1 << 1);
-			else	/* FIXME: review Oaktrail */
+			else
 				crtc_mask = (1 << 0);	/* Cedarview */
 			clone_mask = (1 << INTEL_OUTPUT_HDMI);
 			break;