linux-kernel - [PATCH v2 2/9] drm/vkms: Use drm

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Message-Id: <20240223-yuv-v2-2-aa6be2827bb7@bootlin.com>
Date: Fri, 23 Feb 2024 12:37:22 +0100
From: Louis Chauvet <louis.chauvet@...tlin.com>
To: Rodrigo Siqueira <rodrigosiqueiramelo@...il.com>, 
 Melissa Wen <melissa.srw@...il.com>, 
 Maíra Canal <mairacanal@...eup.net>, 
 Haneen Mohammed <hamohammed.sa@...il.com>, Daniel Vetter <daniel@...ll.ch>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, arthurgrillo@...eup.net, 
 Jonathan Corbet <corbet@....net>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 jeremie.dautheribes@...tlin.com, miquel.raynal@...tlin.com, 
 thomas.petazzoni@...tlin.com, Louis Chauvet <louis.chauvet@...tlin.com>
Subject: [PATCH v2 2/9] drm/vkms: Use drm_frame directly

From: Arthur Grillo <arthurgrillo@...eup.net>

Remove intermidiary variables and access the variables directly from
drm_frame. These changes should be noop.

Signed-off-by: Arthur Grillo <arthurgrillo@...eup.net>
Signed-off-by: Louis Chauvet <louis.chauvet@...tlin.com>
---
 drivers/gpu/drm/vkms/vkms_drv.h       |  3 ---
 drivers/gpu/drm/vkms/vkms_formats.c   | 12 +++++++-----
 drivers/gpu/drm/vkms/vkms_plane.c     |  3 ---
 drivers/gpu/drm/vkms/vkms_writeback.c |  5 -----
 4 files changed, 7 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h
index 8f5710debb1e..b4b357447292 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.h
+++ b/drivers/gpu/drm/vkms/vkms_drv.h
@@ -31,9 +31,6 @@ struct vkms_frame_info {
 	struct drm_rect rotated;
 	struct iosys_map map[DRM_FORMAT_MAX_PLANES];
 	unsigned int rotation;
-	unsigned int offset;
-	unsigned int pitch;
-	unsigned int cpp;
 };
 
 struct pixel_argb_u16 {
diff --git a/drivers/gpu/drm/vkms/vkms_formats.c b/drivers/gpu/drm/vkms/vkms_formats.c
index 36046b12f296..172830a3936a 100644
--- a/drivers/gpu/drm/vkms/vkms_formats.c
+++ b/drivers/gpu/drm/vkms/vkms_formats.c
@@ -11,8 +11,10 @@
 
 static size_t pixel_offset(const struct vkms_frame_info *frame_info, int x, int y)
 {
-	return frame_info->offset + (y * frame_info->pitch)
-				  + (x * frame_info->cpp);
+	struct drm_framebuffer *fb = frame_info->fb;
+
+	return fb->offsets[0] + (y * fb->pitches[0])
+			      + (x * fb->format->cpp[0]);
 }
 
 /*
@@ -131,12 +133,12 @@ void vkms_compose_row(struct line_buffer *stage_buffer, struct vkms_plane_state
 	u8 *src_pixels = get_packed_src_addr(frame_info, y);
 	int limit = min_t(size_t, drm_rect_width(&frame_info->dst), stage_buffer->n_pixels);
 
-	for (size_t x = 0; x < limit; x++, src_pixels += frame_info->cpp) {
+	for (size_t x = 0; x < limit; x++, src_pixels += frame_info->fb->format->cpp[0]) {
 		int x_pos = get_x_position(frame_info, limit, x);
 
 		if (drm_rotation_90_or_270(frame_info->rotation))
 			src_pixels = get_packed_src_addr(frame_info, x + frame_info->rotated.y1)
-				+ frame_info->cpp * y;
+				+ frame_info->fb->format->cpp[0] * y;
 
 		plane->pixel_read(src_pixels, &out_pixels[x_pos]);
 	}
@@ -223,7 +225,7 @@ void vkms_writeback_row(struct vkms_writeback_job *wb,
 	struct pixel_argb_u16 *in_pixels = src_buffer->pixels;
 	int x_limit = min_t(size_t, drm_rect_width(&frame_info->dst), src_buffer->n_pixels);
 
-	for (size_t x = 0; x < x_limit; x++, dst_pixels += frame_info->cpp)
+	for (size_t x = 0; x < x_limit; x++, dst_pixels += frame_info->fb->format->cpp[0])
 		wb->pixel_write(dst_pixels, &in_pixels[x]);
 }
 
diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c
index 90c09046e0af..d5203f531d96 100644
--- a/drivers/gpu/drm/vkms/vkms_plane.c
+++ b/drivers/gpu/drm/vkms/vkms_plane.c
@@ -124,9 +124,6 @@ static void vkms_plane_atomic_update(struct drm_plane *plane,
 	drm_rect_rotate(&frame_info->rotated, drm_rect_width(&frame_info->rotated),
 			drm_rect_height(&frame_info->rotated), frame_info->rotation);
 
-	frame_info->offset = fb->offsets[0];
-	frame_info->pitch = fb->pitches[0];
-	frame_info->cpp = fb->format->cpp[0];
 	vkms_plane_state->pixel_read = get_pixel_conversion_function(fmt);
 }
 
diff --git a/drivers/gpu/drm/vkms/vkms_writeback.c b/drivers/gpu/drm/vkms/vkms_writeback.c
index bc724cbd5e3a..c8582df1f739 100644
--- a/drivers/gpu/drm/vkms/vkms_writeback.c
+++ b/drivers/gpu/drm/vkms/vkms_writeback.c
@@ -149,11 +149,6 @@ static void vkms_wb_atomic_commit(struct drm_connector *conn,
 	crtc_state->active_writeback = active_wb;
 	crtc_state->wb_pending = true;
 	spin_unlock_irq(&output->composer_lock);
-
-	wb_frame_info->offset = fb->offsets[0];
-	wb_frame_info->pitch = fb->pitches[0];
-	wb_frame_info->cpp = fb->format->cpp[0];
-
 	drm_writeback_queue_job(wb_conn, connector_state);
 	active_wb->pixel_write = get_pixel_write_function(wb_format);
 	drm_rect_init(&wb_frame_info->src, 0, 0, crtc_width, crtc_height);

-- 
2.43.0