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drm: Deal with rotation in drm_plane_helper_check_update() 

drm_plane_helper_check_update() needs to account for the plane rotation
for correct clipping/scaling calculations. Do so.

There was an earlier attempt [1] to add this into
intel_check_primary_plane() but I requested that it'd be put into the
helper instead. An updated patch never materialized AFAICS, so I went
ahead and cooked one up myself.

v2: Deal with new drm_plane_helper_check_update() callers

[1] https://patchwork.freedesktop.org/patch/65177/
Cc: Nabendu Maiti <nabendu.bikash.maiti@intel.com>
Cc: Noralf Trønnes <noralf@tronnes.org>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466172790-10025-1-git-send-email-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2016-06-17 17:13:10 +03:00 committed by Daniel Vetter
parent e28cd4d0a2
commit 9b8b013dde
7 changed files with 25 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/armada/armada_overlay.c
View File

@ -121,6 +121,7 @@ armada_ovl_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
int ret;
ret = drm_plane_helper_check_update(plane, crtc, fb, &src, &dest, &clip,
BIT(DRM_ROTATE_0),
0, INT_MAX, true, false, &visible);
if (ret)
return ret;

28
drivers/gpu/drm/drm_plane_helper.c
View File

@ -115,6 +115,7 @@ static int get_connectors_for_crtc(struct drm_crtc *crtc,
* @src: source coordinates in 16.16 fixed point
* @dest: integer destination coordinates
* @clip: integer clipping coordinates
* @rotation: plane rotation
* @min_scale: minimum @src:@dest scaling factor in 16.16 fixed point
* @max_scale: maximum @src:@dest scaling factor in 16.16 fixed point
* @can_position: is it legal to position the plane such that it
@ -134,16 +135,17 @@ static int get_connectors_for_crtc(struct drm_crtc *crtc,
* Zero if update appears valid, error code on failure
*/
int drm_plane_helper_check_update(struct drm_plane *plane,
struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_rect *src,
struct drm_rect *dest,
const struct drm_rect *clip,
int min_scale,
int max_scale,
bool can_position,
bool can_update_disabled,
bool *visible)
struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_rect *src,
struct drm_rect *dest,
const struct drm_rect *clip,
unsigned int rotation,
int min_scale,
int max_scale,
bool can_position,
bool can_update_disabled,
bool *visible)
{
int hscale, vscale;
@ -163,6 +165,8 @@ int drm_plane_helper_check_update(struct drm_plane *plane,
return -EINVAL;
}
drm_rect_rotate(src, fb->width << 16, fb->height << 16, rotation);
/* Check scaling */
hscale = drm_rect_calc_hscale(src, dest, min_scale, max_scale);
vscale = drm_rect_calc_vscale(src, dest, min_scale, max_scale);
@ -174,6 +178,9 @@ int drm_plane_helper_check_update(struct drm_plane *plane,
}
*visible = drm_rect_clip_scaled(src, dest, clip, hscale, vscale);
drm_rect_rotate_inv(src, fb->width << 16, fb->height << 16, rotation);
if (!*visible)
/*
* Plane isn't visible; some drivers can handle this
@ -267,6 +274,7 @@ int drm_primary_helper_update(struct drm_plane *plane, struct drm_crtc *crtc,
ret = drm_plane_helper_check_update(plane, crtc, fb,
&src, &dest, &clip,
BIT(DRM_ROTATE_0),
DRM_PLANE_HELPER_NO_SCALING,
DRM_PLANE_HELPER_NO_SCALING,
false, false, &visible);

1
drivers/gpu/drm/drm_simple_kms_helper.c
View File

@ -105,6 +105,7 @@ static int drm_simple_kms_plane_atomic_check(struct drm_plane *plane,
ret = drm_plane_helper_check_update(plane, &pipe->crtc,
plane_state->fb,
&src, &dest, &clip,
plane_state->rotation,
DRM_PLANE_HELPER_NO_SCALING,
DRM_PLANE_HELPER_NO_SCALING,
false, true, &visible);

2
drivers/gpu/drm/i915/intel_display.c
View File

@ -14102,6 +14102,7 @@ intel_check_primary_plane(struct drm_plane *plane,
return drm_plane_helper_check_update(plane, crtc, fb, &state->src,
&state->dst, &state->clip,
state->base.rotation,
min_scale, max_scale,
can_position, true,
&state->visible);
@ -14293,6 +14294,7 @@ intel_check_cursor_plane(struct drm_plane *plane,
ret = drm_plane_helper_check_update(plane, crtc, fb, &state->src,
&state->dst, &state->clip,
state->base.rotation,
DRM_PLANE_HELPER_NO_SCALING,
DRM_PLANE_HELPER_NO_SCALING,
true, true, &state->visible);

1
drivers/gpu/drm/mediatek/mtk_drm_plane.c
View File

@ -170,6 +170,7 @@ static int mtk_plane_atomic_check(struct drm_plane *plane,
return drm_plane_helper_check_update(plane, state->crtc, fb,
&src, &dest, &clip,
state->rotation,
DRM_PLANE_HELPER_NO_SCALING,
DRM_PLANE_HELPER_NO_SCALING,
true, true, &visible);

1
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
View File

@ -626,6 +626,7 @@ static int vop_plane_atomic_check(struct drm_plane *plane,
ret = drm_plane_helper_check_update(plane, crtc, state->fb,
src, dest, &clip,
state->rotation,
min_scale,
max_scale,
true, true, &visible);

1
include/drm/drm_plane_helper.h
View File

@ -46,6 +46,7 @@ int drm_plane_helper_check_update(struct drm_plane *plane,
struct drm_rect *src,
struct drm_rect *dest,
const struct drm_rect *clip,
unsigned int rotation,
int min_scale,
int max_scale,
bool can_position,