drm/i915/display: Simplify GLK display version tests

GLK has always been a bit of a special case since it reports INTEL_GEN()
as 9, but has version 10 display IP.  Now we can properly represent the
display version as 10 and simplify the display generation tests
throughout the display code.

Aside from manually adding the version to the glk_info structure, the
rest of this patch is generated with a Coccinelle semantic patch.  Note
that we also need to switch any code that matches gen10 today but *not*
GLK to be CNL-specific:

        @@ expression dev_priv; @@
        - DISPLAY_VER(dev_priv) > 9
        + DISPLAY_VER(dev_priv) >= 10

        @@ expression dev_priv, E; @@
        (
        - DISPLAY_VER(dev_priv) >= 10 && E
        + (DISPLAY_VER(dev_priv) >= 11 || IS_CANNONLAKE(dev_priv)) && E
        |
        - DISPLAY_VER(dev_priv) >= 10
        + DISPLAY_VER(dev_priv) >= 11 || IS_CANNONLAKE(dev_priv)
        |
        - IS_DISPLAY_RANGE(dev_priv, 10, E)
        + IS_DISPLAY_RANGE(dev_priv, 11, E) || IS_CANNONLAKE(dev_priv)
        )

        @@ expression dev_priv, E, E2; @@
        (
        - (IS_CANNONLAKE(dev_priv) || IS_GEMINILAKE(dev_priv))
        + IS_DISPLAY_VER(dev_priv, 10)
        |
        - E || IS_CANNONLAKE(dev_priv) || IS_GEMINILAKE(dev_priv)
        + E || IS_DISPLAY_VER(dev_priv, 10)
        |
        - (IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv))
        + IS_DISPLAY_VER(dev_priv, 10)
        |
        - IS_GEMINILAKE(dev_priv) || E || IS_CANNONLAKE(dev_priv)
        + E || IS_DISPLAY_VER(dev_priv, 10)
        |
        - E || IS_GEMINILAKE(dev_priv) || E2 || IS_CANNONLAKE(dev_priv)
        + E || E2 || IS_DISPLAY_VER(dev_priv, 10)
        |
        - (IS_DISPLAY_VER(dev_priv, 10) || IS_GEMINILAKE(dev_priv))
        + IS_DISPLAY_VER(dev_priv, 10)
        |
        - (IS_GEMINILAKE(dev_priv) || IS_DISPLAY_VER(dev_priv, 10))
        + IS_DISPLAY_VER(dev_priv, 10)
        )

        @@ expression dev_priv; @@
        - (IS_DISPLAY_VER(dev_priv, 9) && !IS_GEMINILAKE(dev_priv))
        + IS_DISPLAY_VER(dev_priv, 9)

        @@ expression dev_priv; @@
        (
        - !(DISPLAY_VER(dev_priv) >= 11 || IS_DISPLAY_VER(dev_priv, 10))
        + DISPLAY_VER(dev_priv) < 10
        |
        - (DISPLAY_VER(dev_priv) >= 11 || IS_DISPLAY_VER(dev_priv, 10))
        + DISPLAY_VER(dev_priv) >= 10
        )

        @@ expression dev_priv, E; @@
        - E || DISPLAY_VER(dev_priv) >= 11 || IS_DISPLAY_VER(dev_priv, 10)
        + E || DISPLAY_VER(dev_priv) >= 10

        @@ expression dev_priv, E; @@
        - (IS_DISPLAY_RANGE(dev_priv, 11, E) || IS_DISPLAY_VER(dev_priv, 10))
        + IS_DISPLAY_RANGE(dev_priv, 10, E)

        @@ expression dev_priv; @@
        (
        - DISPLAY_VER(dev_priv) >= 11 || IS_CANNONLAKE(dev_priv) || IS_GEN9_LP(dev_priv)
        + DISPLAY_VER(dev_priv) >= 10 || IS_GEN9_LP(dev_priv)
        |
        - IS_GEN9_LP(dev_priv) || DISPLAY_VER(dev_priv) >= 11 || IS_CANNONLAKE(dev_priv)
        + IS_GEN9_LP(dev_priv) || DISPLAY_VER(dev_priv) >= 10
        )

        @@ expression dev_priv, E; @@
        - !(DISPLAY_VER(dev_priv) >= E)
        + DISPLAY_VER(dev_priv) < E

v2:
 - Convert gen10 conditions that don't include GLK into CNL conditions.
   (Ville)

v3:
 - Rework coccinelle rules so that "ver>=10" turns into "ver>=11||is_cnl." (Ville)

v3.1:
 - Manually re-add the ".display.version = 10" to glk_info after
   regenerating patch via Coccinelle.

v4:
 - Also apply cocci rules to intel_pm.c and i915_irq.c!  (CI)

Cc: Ville Syrjälä <ville.syrjala@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210322233840.4056851-1-matthew.d.roper@intel.com

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 37e275509a36..c75d7124d57a 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -737,7 +737,7 @@ static void ivb_load_lut_ext_max(const struct intel_crtc_state *crtc_state)
 	 * ToDo: Extend the ABI to be able to program values
 	 * from 3.0 to 7.0
 	 */
-	if (DISPLAY_VER(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)) {
+	if (DISPLAY_VER(dev_priv) >= 10) {
 		intel_dsb_reg_write(crtc_state, PREC_PAL_EXT2_GC_MAX(pipe, 0),
 				    1 << 16);
 		intel_dsb_reg_write(crtc_state, PREC_PAL_EXT2_GC_MAX(pipe, 1),
@@ -1711,7 +1711,7 @@ int intel_color_get_gamma_bit_precision(const struct intel_crtc_state *crtc_stat
 	} else {
 		if (DISPLAY_VER(dev_priv) >= 11)
 			return icl_gamma_precision(crtc_state);
-		else if (IS_CANNONLAKE(dev_priv) || IS_GEMINILAKE(dev_priv))
+		else if (IS_DISPLAY_VER(dev_priv, 10))
 			return glk_gamma_precision(crtc_state);
 		else if (IS_IRONLAKE(dev_priv))
 			return ilk_gamma_precision(crtc_state);
@@ -2119,7 +2119,7 @@ void intel_color_init(struct intel_crtc *crtc)
 	} else {
 		if (DISPLAY_VER(dev_priv) >= 11)
 			dev_priv->display.color_check = icl_color_check;
-		else if (DISPLAY_VER(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
+		else if (DISPLAY_VER(dev_priv) >= 10)
 			dev_priv->display.color_check = glk_color_check;
 		else if (DISPLAY_VER(dev_priv) >= 7)
 			dev_priv->display.color_check = ivb_color_check;
@@ -2136,7 +2136,7 @@ void intel_color_init(struct intel_crtc *crtc)
 		if (DISPLAY_VER(dev_priv) >= 11) {
 			dev_priv->display.load_luts = icl_load_luts;
 			dev_priv->display.read_luts = icl_read_luts;
-		} else if (IS_CANNONLAKE(dev_priv) || IS_GEMINILAKE(dev_priv)) {
+		} else if (IS_DISPLAY_VER(dev_priv, 10)) {
 			dev_priv->display.load_luts = glk_load_luts;
 			dev_priv->display.read_luts = glk_read_luts;
 		} else if (DISPLAY_VER(dev_priv) >= 8) {