From: Ville Syrjala <ville.syrjala@linux.intel.com>
To: dri-devel@lists.freedesktop.org
Cc: intel-gfx@lists.freedesktop.org
Subject: [PATCH 03/10] drm/modes: Introduce drm_mode_match()
Date: Mon, 13 Nov 2017 19:04:20 +0200 [thread overview]
Message-ID: <20171113170427.4150-4-ville.syrjala@linux.intel.com> (raw)
In-Reply-To: <20171113170427.4150-1-ville.syrjala@linux.intel.com>
From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Make mode matching less confusing by allowing the caller to specify
which parts of the modes should match via some flags.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
drivers/gpu/drm/drm_modes.c | 134 ++++++++++++++++++++++++++++++++++----------
include/drm/drm_modes.h | 9 +++
2 files changed, 112 insertions(+), 31 deletions(-)
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 4a3f68a33844..8128dbb098be 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -940,17 +940,68 @@ struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
}
EXPORT_SYMBOL(drm_mode_duplicate);
+static bool drm_mode_match_timings(const struct drm_display_mode *mode1,
+ const struct drm_display_mode *mode2)
+{
+ return mode1->hdisplay == mode2->hdisplay &&
+ mode1->hsync_start == mode2->hsync_start &&
+ mode1->hsync_end == mode2->hsync_end &&
+ mode1->htotal == mode2->htotal &&
+ mode1->hskew == mode2->hskew &&
+ mode1->vdisplay == mode2->vdisplay &&
+ mode1->vsync_start == mode2->vsync_start &&
+ mode1->vsync_end == mode2->vsync_end &&
+ mode1->vtotal == mode2->vtotal &&
+ mode1->vscan == mode2->vscan;
+}
+
+static bool drm_mode_match_clock(const struct drm_display_mode *mode1,
+ const struct drm_display_mode *mode2)
+{
+ /*
+ * do clock check convert to PICOS
+ * so fb modes get matched the same
+ */
+ if (mode1->clock && mode2->clock)
+ return KHZ2PICOS(mode1->clock) == KHZ2PICOS(mode2->clock);
+ else
+ return mode1->clock == mode2->clock;
+}
+
+static bool drm_mode_match_flags(const struct drm_display_mode *mode1,
+ const struct drm_display_mode *mode2)
+{
+ return (mode1->flags & ~DRM_MODE_FLAG_3D_MASK) ==
+ (mode2->flags & ~DRM_MODE_FLAG_3D_MASK);
+}
+
+static bool drm_mode_match_3d_flags(const struct drm_display_mode *mode1,
+ const struct drm_display_mode *mode2)
+{
+ return (mode1->flags & DRM_MODE_FLAG_3D_MASK) ==
+ (mode2->flags & DRM_MODE_FLAG_3D_MASK);
+}
+
+static bool drm_mode_match_aspect_ratio(const struct drm_display_mode *mode1,
+ const struct drm_display_mode *mode2)
+{
+ return mode1->picture_aspect_ratio == mode2->picture_aspect_ratio;
+}
+
/**
- * drm_mode_equal - test modes for equality
+ * drm_mode_match - test modes for (partial) equality
* @mode1: first mode
* @mode2: second mode
+ * @match_flags: which parts need to match (DRM_MODE_MATCH_*)
*
* Check to see if @mode1 and @mode2 are equivalent.
*
* Returns:
- * True if the modes are equal, false otherwise.
+ * True if the modes are (partially) equal, false otherwise.
*/
-bool drm_mode_equal(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2)
+bool drm_mode_match(const struct drm_display_mode *mode1,
+ const struct drm_display_mode *mode2,
+ unsigned int match_flags)
{
if (!mode1 && !mode2)
return true;
@@ -958,15 +1009,48 @@ bool drm_mode_equal(const struct drm_display_mode *mode1, const struct drm_displ
if (!mode1 || !mode2)
return false;
- /* do clock check convert to PICOS so fb modes get matched
- * the same */
- if (mode1->clock && mode2->clock) {
- if (KHZ2PICOS(mode1->clock) != KHZ2PICOS(mode2->clock))
- return false;
- } else if (mode1->clock != mode2->clock)
+ if (match_flags & DRM_MODE_MATCH_TIMINGS &&
+ !drm_mode_match_timings(mode1, mode2))
+ return false;
+
+ if (match_flags & DRM_MODE_MATCH_CLOCK &&
+ !drm_mode_match_clock(mode1, mode2))
+ return false;
+
+ if (match_flags & DRM_MODE_MATCH_FLAGS &&
+ !drm_mode_match_flags(mode1, mode2))
+ return false;
+
+ if (match_flags & DRM_MODE_MATCH_3D_FLAGS &&
+ !drm_mode_match_3d_flags(mode1, mode2))
return false;
- return drm_mode_equal_no_clocks(mode1, mode2);
+ if (match_flags & DRM_MODE_MATCH_ASPECT_RATIO &&
+ !drm_mode_match_aspect_ratio(mode1, mode2))
+ return false;
+
+ return true;
+}
+EXPORT_SYMBOL(drm_mode_match);
+
+/**
+ * drm_mode_equal - test modes for equality
+ * @mode1: first mode
+ * @mode2: second mode
+ *
+ * Check to see if @mode1 and @mode2 are equivalent.
+ *
+ * Returns:
+ * True if the modes are equal, false otherwise.
+ */
+bool drm_mode_equal(const struct drm_display_mode *mode1,
+ const struct drm_display_mode *mode2)
+{
+ return drm_mode_match(mode1, mode2,
+ DRM_MODE_MATCH_TIMINGS |
+ DRM_MODE_MATCH_CLOCK |
+ DRM_MODE_MATCH_FLAGS |
+ DRM_MODE_MATCH_3D_FLAGS);
}
EXPORT_SYMBOL(drm_mode_equal);
@@ -981,13 +1065,13 @@ EXPORT_SYMBOL(drm_mode_equal);
* Returns:
* True if the modes are equal, false otherwise.
*/
-bool drm_mode_equal_no_clocks(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2)
+bool drm_mode_equal_no_clocks(const struct drm_display_mode *mode1,
+ const struct drm_display_mode *mode2)
{
- if ((mode1->flags & DRM_MODE_FLAG_3D_MASK) !=
- (mode2->flags & DRM_MODE_FLAG_3D_MASK))
- return false;
-
- return drm_mode_equal_no_clocks_no_stereo(mode1, mode2);
+ return drm_mode_match(mode1, mode2,
+ DRM_MODE_MATCH_TIMINGS |
+ DRM_MODE_MATCH_FLAGS |
+ DRM_MODE_MATCH_3D_FLAGS);
}
EXPORT_SYMBOL(drm_mode_equal_no_clocks);
@@ -1005,21 +1089,9 @@ EXPORT_SYMBOL(drm_mode_equal_no_clocks);
bool drm_mode_equal_no_clocks_no_stereo(const struct drm_display_mode *mode1,
const struct drm_display_mode *mode2)
{
- if (mode1->hdisplay == mode2->hdisplay &&
- mode1->hsync_start == mode2->hsync_start &&
- mode1->hsync_end == mode2->hsync_end &&
- mode1->htotal == mode2->htotal &&
- mode1->hskew == mode2->hskew &&
- mode1->vdisplay == mode2->vdisplay &&
- mode1->vsync_start == mode2->vsync_start &&
- mode1->vsync_end == mode2->vsync_end &&
- mode1->vtotal == mode2->vtotal &&
- mode1->vscan == mode2->vscan &&
- (mode1->flags & ~DRM_MODE_FLAG_3D_MASK) ==
- (mode2->flags & ~DRM_MODE_FLAG_3D_MASK))
- return true;
-
- return false;
+ return drm_mode_match(mode1, mode2,
+ DRM_MODE_MATCH_TIMINGS |
+ DRM_MODE_MATCH_FLAGS);
}
EXPORT_SYMBOL(drm_mode_equal_no_clocks_no_stereo);
diff --git a/include/drm/drm_modes.h b/include/drm/drm_modes.h
index 9f3421c8efcd..839eb9c3a029 100644
--- a/include/drm/drm_modes.h
+++ b/include/drm/drm_modes.h
@@ -150,6 +150,12 @@ enum drm_mode_status {
#define DRM_MODE_FLAG_3D_MAX DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF
+#define DRM_MODE_MATCH_TIMINGS (1 << 0)
+#define DRM_MODE_MATCH_CLOCK (1 << 1)
+#define DRM_MODE_MATCH_FLAGS (1 << 2)
+#define DRM_MODE_MATCH_3D_FLAGS (1 << 3)
+#define DRM_MODE_MATCH_ASPECT_RATIO (1 << 4)
+
/**
* struct drm_display_mode - DRM kernel-internal display mode structure
* @hdisplay: horizontal display size
@@ -493,6 +499,9 @@ void drm_mode_copy(struct drm_display_mode *dst,
const struct drm_display_mode *src);
struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
const struct drm_display_mode *mode);
+bool drm_mode_match(const struct drm_display_mode *mode1,
+ const struct drm_display_mode *mode2,
+ unsigned int match_flags);
bool drm_mode_equal(const struct drm_display_mode *mode1,
const struct drm_display_mode *mode2);
bool drm_mode_equal_no_clocks(const struct drm_display_mode *mode1,
--
2.13.6
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next prev parent reply other threads:[~2017-11-13 17:04 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-13 17:04 [PATCH 00/10] drm/edid: Infoframe cleanups and fixes Ville Syrjala
2017-11-13 17:04 ` [PATCH 01/10] video/hdmi: Allow "empty" HDMI infoframes Ville Syrjala
2017-11-13 17:04 ` Ville Syrjala
2017-11-16 14:36 ` Sharma, Shashank
2017-11-16 16:16 ` Ville Syrjälä
2017-11-17 3:05 ` Sharma, Shashank
2017-11-17 3:05 ` Sharma, Shashank
2017-11-13 17:04 ` [PATCH 02/10] drm/edid: Allow HDMI infoframe without VIC or S3D Ville Syrjala
2017-11-16 14:40 ` Sharma, Shashank
2017-11-16 16:21 ` Ville Syrjälä
2017-11-17 3:10 ` Sharma, Shashank
2017-11-22 18:28 ` Ville Syrjälä
2017-11-13 17:04 ` Ville Syrjala [this message]
2017-11-13 17:04 ` [PATCH 04/10] drm/edid: Use drm_mode_match_no_clocks_no_stereo() for consistentcy Ville Syrjala
2017-11-13 17:04 ` [PATCH 05/10] drm/edid: Fix up edid_cea_modes[] formatting Ville Syrjala
2017-11-13 17:04 ` [PATCH 06/10] drm/edid: Fix cea mode aspect ratio handling Ville Syrjala
2017-11-13 18:13 ` Jose Abreu
2017-11-13 18:53 ` Ville Syrjälä
2017-11-16 14:51 ` Sharma, Shashank
2017-11-16 16:23 ` Ville Syrjälä
2017-11-17 3:19 ` Sharma, Shashank
2017-11-17 11:35 ` Ville Syrjälä
2017-11-17 12:20 ` Sharma, Shashank
2017-11-17 12:49 ` Ville Syrjälä
2017-11-24 8:56 ` Sharma, Shashank
2017-11-24 13:22 ` Ville Syrjälä
2017-11-13 17:04 ` [PATCH 07/10] drm/edid: Don't send bogus aspect ratios in AVI infoframes Ville Syrjala
2017-11-13 18:30 ` Jose Abreu
2017-11-13 19:00 ` Ville Syrjälä
2017-11-16 15:01 ` Sharma, Shashank
2017-11-16 16:26 ` Ville Syrjälä
2017-11-17 3:23 ` Sharma, Shashank
2017-11-17 11:38 ` Ville Syrjälä
2017-11-24 8:55 ` Sharma, Shashank
2017-11-13 17:04 ` [PATCH 08/10] video/hdmi: Reject illegal picture aspect ratios Ville Syrjala
2017-11-13 18:33 ` Jose Abreu
2017-11-13 18:33 ` Jose Abreu
2017-11-13 17:04 ` [PATCH 09/10] video/hdmi: Constify 'buffer' to the unpack functions Ville Syrjala
2017-11-13 17:04 ` [PATCH 10/10] video/hdmi: Pass buffer size to infoframe " Ville Syrjala
2017-11-20 13:36 ` Hans Verkuil
2017-11-20 14:55 ` Ville Syrjälä
2017-11-20 14:55 ` Ville Syrjälä
2017-11-13 17:52 ` ✓ Fi.CI.BAT: success for drm/edid: Infoframe cleanups and fixes Patchwork
2017-11-13 19:07 ` ✓ Fi.CI.IGT: " Patchwork
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