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From: Stephane Viau <sviau@codeaurora.org>
To: dri-devel@lists.freedesktop.org
Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
	robdclark@gmail.com, daniel@ffwll.ch,
	Beeresh Gopal <gbeeresh@codeaurora.org>,
	Stephane Viau <sviau@codeaurora.org>
Subject: [PATCH v2 2/2] drm/msm/mdp4: Support NV12MT format in mdp4
Date: Fri, 13 Mar 2015 15:12:10 -0400	[thread overview]
Message-ID: <1426273930-12788-3-git-send-email-sviau@codeaurora.org> (raw)
In-Reply-To: <1426273930-12788-1-git-send-email-sviau@codeaurora.org>

From: Beeresh Gopal <gbeeresh@codeaurora.org>

Using fb modifier flag, support NV12MT format in MDP4.

v2:
- rework the modifier's description [Daniel Vetter's comment]
- drop .set_mode_config() callback [Rob Clark's comment]

Signed-off-by: Beeresh Gopal <gbeeresh@codeaurora.org>
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
---
 drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c   |  2 ++
 drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c | 22 ++++++++++++++++++++++
 include/uapi/drm/drm_fourcc.h             |  5 +++++
 3 files changed, 29 insertions(+)

diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
index d81e19d..6387881 100644
--- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
@@ -119,6 +119,8 @@ static int mdp4_hw_init(struct msm_kms *kms)
 	if (mdp4_kms->rev > 1)
 		mdp4_write(mdp4_kms, REG_MDP4_RESET_STATUS, 1);
 
+	dev->mode_config.allow_fb_modifiers = true;
+
 out:
 	pm_runtime_put_sync(dev->dev);
 
diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c
index cde2500..2c2d6a5 100644
--- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c
+++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c
@@ -33,6 +33,21 @@ struct mdp4_plane {
 };
 #define to_mdp4_plane(x) container_of(x, struct mdp4_plane, base)
 
+/* MDP format helper functions */
+static inline
+enum mdp4_frame_format mdp4_get_frame_format(struct drm_framebuffer *fb)
+{
+	bool is_tile = false;
+
+	if (fb->modifier[1] == DRM_FORMAT_MOD_SAMSUNG_64_32_TILE)
+		is_tile = true;
+
+	if (fb->pixel_format == DRM_FORMAT_NV12 && is_tile)
+		return FRAME_TILE_YCBCR_420;
+
+	return FRAME_LINEAR;
+}
+
 static void mdp4_plane_set_scanout(struct drm_plane *plane,
 		struct drm_framebuffer *fb);
 static int mdp4_plane_mode_set(struct drm_plane *plane,
@@ -203,6 +218,7 @@ static int mdp4_plane_mode_set(struct drm_plane *plane,
 	uint32_t op_mode = 0;
 	uint32_t phasex_step = MDP4_VG_PHASE_STEP_DEFAULT;
 	uint32_t phasey_step = MDP4_VG_PHASE_STEP_DEFAULT;
+	enum mdp4_frame_format frame_type = mdp4_get_frame_format(fb);
 
 	if (!(crtc && fb)) {
 		DBG("%s: disabled!", mdp4_plane->name);
@@ -302,6 +318,7 @@ static int mdp4_plane_mode_set(struct drm_plane *plane,
 			MDP4_PIPE_SRC_FORMAT_UNPACK_COUNT(format->unpack_count - 1) |
 			MDP4_PIPE_SRC_FORMAT_FETCH_PLANES(format->fetch_type) |
 			MDP4_PIPE_SRC_FORMAT_CHROMA_SAMP(format->chroma_sample) |
+			MDP4_PIPE_SRC_FORMAT_FRAME_FORMAT(frame_type) |
 			COND(format->unpack_tight, MDP4_PIPE_SRC_FORMAT_UNPACK_TIGHT));
 
 	mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_UNPACK(pipe),
@@ -322,6 +339,11 @@ static int mdp4_plane_mode_set(struct drm_plane *plane,
 	mdp4_write(mdp4_kms, REG_MDP4_PIPE_PHASEX_STEP(pipe), phasex_step);
 	mdp4_write(mdp4_kms, REG_MDP4_PIPE_PHASEY_STEP(pipe), phasey_step);
 
+	if (frame_type != FRAME_LINEAR)
+		mdp4_write(mdp4_kms, REG_MDP4_PIPE_SSTILE_FRAME_SIZE(pipe),
+				MDP4_PIPE_SSTILE_FRAME_SIZE_WIDTH(src_w) |
+				MDP4_PIPE_SSTILE_FRAME_SIZE_HEIGHT(src_h));
+
 	return 0;
 }
 
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index 188e61f..2ff79cb 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -161,4 +161,9 @@
  * authoritative source for all of these.
  */
 
+/* Samsung framebuffer modifiers */
+
+/* Tiled: 64x32 pixel macroblocks */
+#define DRM_FORMAT_MOD_SAMSUNG_64_32_TILE fourcc_mod_code(SAMSUNG, 1)
+
 #endif /* DRM_FOURCC_H */
-- 
Qualcomm Innovation Center, Inc.

The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project


  parent reply	other threads:[~2015-03-13 19:12 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-20 14:42 [PATCH 1/2] drm/msm: update generated headers Beeresh Gopal
2015-02-20 14:42 ` [PATCH 2/2] drm/msm: Support NV12MT format in mdp4 Beeresh Gopal
2015-02-20 15:26   ` Rob Clark
2015-03-13 19:12     ` [PATCH v2 0/2] drm/msm: Add support for " Stephane Viau
2015-03-13 19:12       ` [PATCH v2 1/2] drm/msm: update generated headers Stephane Viau
2015-03-13 19:14         ` [PATCH] rnndb: " Stephane Viau
2015-03-13 19:12       ` Stephane Viau [this message]
2015-03-16  8:05         ` [PATCH v2 2/2] drm/msm/mdp4: Support NV12MT format in mdp4 Daniel Vetter
2015-03-24 18:32           ` Rob Clark
2015-03-25  2:26             ` Seung-Woo Kim
2015-02-22 10:34   ` [PATCH 2/2] drm/msm: " Daniel Vetter
2015-03-13 14:51     ` "Stéphane Viau"

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