i915: wrap chipset types requiring hw status set ioctl

Also applys to recent added new chipset.
Signed-off-by: NZhenyu Wang <zhenyu.z.wang@intel.com>
Signed-off-by: NDave Airlie <airlied@linux.ie>

drivers/char/drm/i915_dma.c

@@ -171,7 +171,7 @@ static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
 	dev_priv->allow_batchbuffer = 1;
 
 	/* Program Hardware Status Page */
-	if (!IS_G33(dev)) {
+	if (!I915_NEED_GFX_HWS(dev)) {
 		dev_priv->status_page_dmah =
 			drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE, 0xffffffff);
 
@@ -720,6 +720,9 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	drm_i915_hws_addr_t *hws = data;
 
+	if (!I915_NEED_GFX_HWS(dev))
+		return -EINVAL;
+
 	if (!dev_priv) {
 		DRM_ERROR("called with no initialization\n");
 		return -EINVAL;

drivers/char/drm/i915_drv.h

@@ -1101,6 +1101,8 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
 #define IS_MOBILE(dev) (IS_I830(dev) || IS_I85X(dev) || IS_I915GM(dev) || \
 			IS_I945GM(dev) || IS_I965GM(dev) || IS_IGD_GM(dev))
 
+#define I915_NEED_GFX_HWS(dev) (IS_G33(dev) || IS_IGD_GM(dev))
+
 #define PRIMARY_RINGBUFFER_SIZE         (128*1024)
 
 #endif