drm/i915: Make INTEL_GEN only take dev_priv

Saves 968 bytes of .rodata strings.

v2: Add parantheses around dev_priv. (Ville Syrjala)
v3: Rebase.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: David Weinehall <david.weinehall@linux.intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Jani Nikula <jani.nikula@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

drivers/gpu/drm/i915/i915_drv.h

@@ -2600,8 +2600,8 @@ struct drm_i915_cmd_table {
 	__p; \
 })
 #define INTEL_INFO(p)	(&__I915__(p)->info)
-#define INTEL_GEN(p)	(INTEL_INFO(p)->gen)
 
+#define INTEL_GEN(dev_priv)	((dev_priv)->info.gen)
 #define INTEL_DEVID(dev_priv)	((dev_priv)->info.device_id)
 
 #define REVID_FOREVER		0xff

drivers/gpu/drm/i915/i915_gem_render_state.c

@@ -72,9 +72,9 @@ render_state_get_rodata(const struct drm_i915_gem_request *req)
 
 static int render_state_setup(struct render_state *so)
 {
-	struct drm_device *dev = so->vma->vm->dev;
+	struct drm_i915_private *dev_priv = to_i915(so->vma->vm->dev);
 	const struct intel_renderstate_rodata *rodata = so->rodata;
-	const bool has_64bit_reloc = INTEL_GEN(dev) >= 8;
+	const bool has_64bit_reloc = INTEL_GEN(dev_priv) >= 8;
 	unsigned int i = 0, reloc_index = 0;
 	struct page *page;
 	u32 *d;
@@ -115,7 +115,7 @@ static int render_state_setup(struct render_state *so)
 
 	so->aux_batch_offset = i * sizeof(u32);
 
-	if (HAS_POOLED_EU(dev)) {
+	if (HAS_POOLED_EU(dev_priv)) {
 		/*
 		 * We always program 3x6 pool config but depending upon which
 		 * subslice is disabled HW drops down to appropriate config

drivers/gpu/drm/i915/i915_irq.c

@@ -2748,7 +2748,7 @@ static int ironlake_enable_vblank(struct drm_device *dev, unsigned int pipe)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	unsigned long irqflags;
-	uint32_t bit = INTEL_GEN(dev) >= 7 ?
+	uint32_t bit = INTEL_GEN(dev_priv) >= 7 ?
 		DE_PIPE_VBLANK_IVB(pipe) : DE_PIPE_VBLANK(pipe);
 
 	spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
@@ -2798,7 +2798,7 @@ static void ironlake_disable_vblank(struct drm_device *dev, unsigned int pipe)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	unsigned long irqflags;
-	uint32_t bit = INTEL_GEN(dev) >= 7 ?
+	uint32_t bit = INTEL_GEN(dev_priv) >= 7 ?
 		DE_PIPE_VBLANK_IVB(pipe) : DE_PIPE_VBLANK(pipe);
 
 	spin_lock_irqsave(&dev_priv->irq_lock, irqflags);

drivers/gpu/drm/i915/intel_display.c

@@ -12450,7 +12450,7 @@ int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
 	struct drm_framebuffer *fb = plane_state->fb;
 	int ret;
 
-	if (INTEL_GEN(dev) >= 9 && plane->type != DRM_PLANE_TYPE_CURSOR) {
+	if (INTEL_GEN(dev_priv) >= 9 && plane->type != DRM_PLANE_TYPE_CURSOR) {
 		ret = skl_update_scaler_plane(
 			to_intel_crtc_state(crtc_state),
 			to_intel_plane_state(plane_state));

drivers/gpu/drm/i915/intel_sprite.c

@@ -753,7 +753,7 @@ intel_check_sprite_plane(struct drm_plane *plane,
 			 struct intel_crtc_state *crtc_state,
 			 struct intel_plane_state *state)
 {
-	struct drm_device *dev = plane->dev;
+	struct drm_i915_private *dev_priv = to_i915(plane->dev);
 	struct drm_crtc *crtc = state->base.crtc;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_plane *intel_plane = to_intel_plane(plane);
@@ -797,7 +797,7 @@ intel_check_sprite_plane(struct drm_plane *plane,
 	}
 
 	/* setup can_scale, min_scale, max_scale */
-	if (INTEL_INFO(dev)->gen >= 9) {
+	if (INTEL_GEN(dev_priv) >= 9) {
 		/* use scaler when colorkey is not required */
 		if (state->ckey.flags == I915_SET_COLORKEY_NONE) {
 			can_scale = 1;
@@ -913,7 +913,7 @@ intel_check_sprite_plane(struct drm_plane *plane,
 
 		width_bytes = ((src_x * cpp) & 63) + src_w * cpp;
 
-		if (INTEL_INFO(dev)->gen < 9 && (src_w > 2048 || src_h > 2048 ||
+		if (INTEL_GEN(dev_priv) < 9 && (src_w > 2048 || src_h > 2048 ||
 		    width_bytes > 4096 || fb->pitches[0] > 4096)) {
 			DRM_DEBUG_KMS("Source dimensions exceed hardware limits\n");
 			return -EINVAL;
@@ -932,7 +932,7 @@ intel_check_sprite_plane(struct drm_plane *plane,
 	dst->y1 = crtc_y;
 	dst->y2 = crtc_y + crtc_h;
 
-	if (INTEL_GEN(dev) >= 9) {
+	if (INTEL_GEN(dev_priv) >= 9) {
 		ret = skl_check_plane_surface(state);
 		if (ret)
 			return ret;