drm/i915/display: rename display version macros

While converting the rest of the driver to use GRAPHICS_VER() and
MEDIA_VER(), following what was done for display, some discussions went
back on what we did for display:

	1) Why is the == comparison special that deserves a separate
	macro instead of just getting the version and comparing directly
	like is done for >, >=, <=?

	2) IS_DISPLAY_RANGE() is weird in that it omits the "_VER" for
	brevity. If we remove the current users of IS_DISPLAY_VER(), we
	could actually repurpose it for a range check

With (1) there could be an advantage if we used gen_mask since multiple
conditionals be combined by the compiler in a single and instruction and
check the result. However a) INTEL_GEN() doesn't use the mask since it
would make the code bigger everywhere else and b) in the cases it made
sense, it also made sense to convert to the _RANGE() variant.

So here we repurpose IS_DISPLAY_VER() to work with a [ from, to ] range
like was the IS_DISPLAY_RANGE() and convert the current IS_DISPLAY_VER()
users to use == and != operators. Aside from the definition changes,
this was done by the following semantic patch:

	@@ expression dev_priv, E1; @@
	- !IS_DISPLAY_VER(dev_priv, E1)
	+ DISPLAY_VER(dev_priv) != E1

	@@ expression dev_priv, E1; @@
	- IS_DISPLAY_VER(dev_priv, E1)
	+ DISPLAY_VER(dev_priv) == E1

	@@ expression dev_priv, from, until; @@
	- IS_DISPLAY_RANGE(dev_priv, from, until)
	+ IS_DISPLAY_VER(dev_priv, from, until)

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
[Jani: Minor conflict resolve while applying.]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20210413051002.92589-4-lucas.demarchi@intel.com

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_overlay.c b/drivers/gpu/drm/i915/display/intel_overlay.c
index e477b6114a60..d1255911a327 100644
--- a/drivers/gpu/drm/i915/display/intel_overlay.c
+++ b/drivers/gpu/drm/i915/display/intel_overlay.c
@@ -550,7 +550,7 @@ static u32 calc_swidthsw(struct drm_i915_private *dev_priv, u32 offset, u32 widt
 {
 	u32 sw;
 
-	if (IS_DISPLAY_VER(dev_priv, 2))
+	if (DISPLAY_VER(dev_priv) == 2)
 		sw = ALIGN((offset & 31) + width, 32);
 	else
 		sw = ALIGN((offset & 63) + width, 64);
@@ -818,7 +818,7 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay,
 			oconfig |= OCONF_CC_OUT_8BIT;
 		if (crtc_state->gamma_enable)
 			oconfig |= OCONF_GAMMA2_ENABLE;
-		if (IS_DISPLAY_VER(dev_priv, 4))
+		if (DISPLAY_VER(dev_priv) == 4)
 			oconfig |= OCONF_CSC_MODE_BT709;
 		oconfig |= pipe == 0 ?
 			OCONF_PIPE_A : OCONF_PIPE_B;
@@ -1052,7 +1052,7 @@ static int check_overlay_src(struct drm_i915_private *dev_priv,
 
 	if (rec->stride_Y & stride_mask || rec->stride_UV & stride_mask)
 		return -EINVAL;
-	if (IS_DISPLAY_VER(dev_priv, 4) && rec->stride_Y < 512)
+	if (DISPLAY_VER(dev_priv) == 4 && rec->stride_Y < 512)
 		return -EINVAL;
 
 	tmp = (rec->flags & I915_OVERLAY_TYPE_MASK) == I915_OVERLAY_YUV_PLANAR ?
@@ -1279,7 +1279,7 @@ int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
 		attrs->contrast   = overlay->contrast;
 		attrs->saturation = overlay->saturation;
 
-		if (!IS_DISPLAY_VER(dev_priv, 2)) {
+		if (DISPLAY_VER(dev_priv) != 2) {
 			attrs->gamma0 = intel_de_read(dev_priv, OGAMC0);
 			attrs->gamma1 = intel_de_read(dev_priv, OGAMC1);
 			attrs->gamma2 = intel_de_read(dev_priv, OGAMC2);
@@ -1303,7 +1303,7 @@ int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
 		update_reg_attrs(overlay, overlay->regs);
 
 		if (attrs->flags & I915_OVERLAY_UPDATE_GAMMA) {
-			if (IS_DISPLAY_VER(dev_priv, 2))
+			if (DISPLAY_VER(dev_priv) == 2)
 				goto out_unlock;
 
 			if (overlay->active) {