drm/nv50: fix iommu errors caused by device reading from address 0

[safe/jmp/linux-2.6] / drivers / gpu / drm / nouveau / nv04_fbcon.c

diff --git a/drivers/gpu/drm/nouveau/nv04_fbcon.c b/drivers/gpu/drm/nouveau/nv04_fbcon.c
index d910873..1eeac4f 100644 (file)
--- a/drivers/gpu/drm/nouveau/nv04_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nv04_fbcon.c
@@ -27,11 +27,11 @@
 #include "nouveau_dma.h"
 #include "nouveau_fbcon.h"
 
-static void
+void
 nv04_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region)
 {
-       struct nouveau_fbcon_par *par = info->par;
-       struct drm_device *dev = par->dev;
+       struct nouveau_fbdev *nfbdev = info->par;
+       struct drm_device *dev = nfbdev->dev;
        struct drm_nouveau_private *dev_priv = dev->dev_private;
        struct nouveau_channel *chan = dev_priv->channel;
 
@@ -54,11 +54,11 @@ nv04_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *region)
        FIRE_RING(chan);
 }
 
-static void
+void
 nv04_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
 {
-       struct nouveau_fbcon_par *par = info->par;
-       struct drm_device *dev = par->dev;
+       struct nouveau_fbdev *nfbdev = info->par;
+       struct drm_device *dev = nfbdev->dev;
        struct drm_nouveau_private *dev_priv = dev->dev_private;
        struct nouveau_channel *chan = dev_priv->channel;
 
@@ -88,11 +88,11 @@ nv04_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
        FIRE_RING(chan);
 }
 
-static void
+void
 nv04_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
 {
-       struct nouveau_fbcon_par *par = info->par;
-       struct drm_device *dev = par->dev;
+       struct nouveau_fbdev *nfbdev = info->par;
+       struct drm_device *dev = nfbdev->dev;
        struct drm_nouveau_private *dev_priv = dev->dev_private;
        struct nouveau_channel *chan = dev_priv->channel;
        uint32_t fg;
@@ -118,8 +118,8 @@ nv04_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
                return;
        }
 
-       width = (image->width + 31) & ~31;
-       dsize = (width * image->height) >> 5;
+       width = ALIGN(image->width, 8);
+       dsize = ALIGN(width * image->height, 32) >> 5;
 
        if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
            info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
@@ -136,8 +136,8 @@ nv04_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
                         ((image->dx + image->width) & 0xffff));
        OUT_RING(chan, bg);
        OUT_RING(chan, fg);
-       OUT_RING(chan, (image->height << 16) | image->width);
        OUT_RING(chan, (image->height << 16) | width);
+       OUT_RING(chan, (image->height << 16) | image->width);
        OUT_RING(chan, (image->dy << 16) | (image->dx & 0xffff));
 
        while (dsize) {
@@ -179,8 +179,8 @@ nv04_fbcon_grobj_new(struct drm_device *dev, int class, uint32_t handle)
 int
 nv04_fbcon_accel_init(struct fb_info *info)
 {
-       struct nouveau_fbcon_par *par = info->par;
-       struct drm_device *dev = par->dev;
+       struct nouveau_fbdev *nfbdev = info->par;
+       struct drm_device *dev = nfbdev->dev;
        struct drm_nouveau_private *dev_priv = dev->dev_private;
        struct nouveau_channel *chan = dev_priv->channel;
        const int sub = NvSubCtxSurf2D;
@@ -236,7 +236,7 @@ nv04_fbcon_accel_init(struct fb_info *info)
        if (ret)
                return ret;
 
-       ret = nv04_fbcon_grobj_new(dev, dev_priv->card_type >= NV_10 ?
+       ret = nv04_fbcon_grobj_new(dev, dev_priv->chipset >= 0x11 ?
                                   0x009f : 0x005f, NvImageBlit);
        if (ret)
                return ret;
@@ -307,9 +307,6 @@ nv04_fbcon_accel_init(struct fb_info *info)
 
        FIRE_RING(chan);
 
-       info->fbops->fb_fillrect = nv04_fbcon_fillrect;
-       info->fbops->fb_copyarea = nv04_fbcon_copyarea;
-       info->fbops->fb_imageblit = nv04_fbcon_imageblit;
        return 0;
 }