drm/radeon/kms: add r600 KMS support

This adds the r600 KMS + CS support to the Linux kernel.

The r600 TTM support is quite basic and still needs more
work esp around using interrupts, but the polled fencing
should work okay for now.

Also currently TTM is using memcpy to do VRAM moves,
the code is here to use a 3D blit to do this, but
isn't fully debugged yet.

Authors:
Alex Deucher <alexdeucher@gmail.com>
Dave Airlie <airlied@redhat.com>
Jerome Glisse <jglisse@redhat.com>

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 13 insertions, 5 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c
index 2882f40d5ec5..aad0c6fafcf4 100644
--- a/drivers/gpu/drm/radeon/radeon_state.c
+++ b/drivers/gpu/drm/radeon/radeon_state.c
@@ -1546,7 +1546,7 @@ static void radeon_cp_dispatch_vertex(struct drm_device * dev,
         } while (i < nbox);
 }
 
-static void radeon_cp_discard_buffer(struct drm_device *dev, struct drm_master *master, struct drm_buf *buf)
+void radeon_cp_discard_buffer(struct drm_device *dev, struct drm_master *master, struct drm_buf *buf)
 {
         drm_radeon_private_t *dev_priv = dev->dev_private;
         struct drm_radeon_master_private *master_priv = master->driver_priv;
@@ -2213,7 +2213,10 @@ static int radeon_cp_swap(struct drm_device *dev, void *data, struct drm_file *f
         if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS)
                 sarea_priv->nbox = RADEON_NR_SAREA_CLIPRECTS;
 
-        radeon_cp_dispatch_swap(dev, file_priv->master);
+        if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+                r600_cp_dispatch_swap(dev, file_priv);
+        else
+                radeon_cp_dispatch_swap(dev, file_priv->master);
         sarea_priv->ctx_owner = 0;
 
         COMMIT_RING();
@@ -2412,7 +2415,10 @@ static int radeon_cp_texture(struct drm_device *dev, void *data, struct drm_file
         RING_SPACE_TEST_WITH_RETURN(dev_priv);
         VB_AGE_TEST_WITH_RETURN(dev_priv);
 
-        ret = radeon_cp_dispatch_texture(dev, file_priv, tex, &image);
+        if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
+                ret = r600_cp_dispatch_texture(dev, file_priv, tex, &image);
+        else
+                ret = radeon_cp_dispatch_texture(dev, file_priv, tex, &image);
 
         return ret;
 }
@@ -2495,8 +2501,9 @@ static int radeon_cp_indirect(struct drm_device *dev, void *data, struct drm_fil
                 radeon_cp_dispatch_indirect(dev, buf, indirect->start, indirect->end);
         }
 
-        if (indirect->discard)
+        if (indirect->discard) {
                 radeon_cp_discard_buffer(dev, file_priv->master, buf);
+        }
 
         COMMIT_RING();
         return 0;
@@ -3227,7 +3234,8 @@ struct drm_ioctl_desc radeon_ioctls[] = {
         DRM_IOCTL_DEF(DRM_RADEON_IRQ_WAIT, radeon_irq_wait, DRM_AUTH),
         DRM_IOCTL_DEF(DRM_RADEON_SETPARAM, radeon_cp_setparam, DRM_AUTH),
         DRM_IOCTL_DEF(DRM_RADEON_SURF_ALLOC, radeon_surface_alloc, DRM_AUTH),
-        DRM_IOCTL_DEF(DRM_RADEON_SURF_FREE, radeon_surface_free, DRM_AUTH)
+        DRM_IOCTL_DEF(DRM_RADEON_SURF_FREE, radeon_surface_free, DRM_AUTH),
+        DRM_IOCTL_DEF(DRM_RADEON_CS, r600_cs_legacy_ioctl, DRM_AUTH)
 };
 
 int radeon_max_ioctl = DRM_ARRAY_SIZE(radeon_ioctls);