Hi,
On 20-02-17 14:24, Hans de Goede wrote:
<snip>
So when userspace
(e.g. the Xorg server + modesetting driver) asks for 0° degree
rotation under the hood they get 90 applied, when they aks for
the panel resolution they get 1280x720 instead of 720x1280.
The idea was that userspace will inherit the initial rotation.
That does work correctly at least with the intel ddx.
Ah (userspace will inherit the initial rotation) I've yet to patch the
kernel to set up an initial rotation for this, I will give this a
try and see if that helps.
Ok, so for my case this does not help because only skylake and
later support 90 / 270 degree rotation and I'm on cherrytrail.
In case anyone is interested I've attached a rebased version
of the fbcon inherit wip patch (with the unrelated changes
to fb-helper's clone code removed).
Regards,
Hans
>From d6baf99228e6ce78f0a7e86feee48c34309e9b1c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@xxxxxxxxxxxxxxx>
Date: Sun, 29 Nov 2015 17:56:03 +0200
Subject: [PATCH] drm/fb-helper: Inherit rotation wip
---
drivers/gpu/drm/drm_fb_helper.c | 48 ++++++++++++++++++++++++++++++++++--
drivers/gpu/drm/i915/intel_display.c | 30 +++++++++++++++++++++-
drivers/gpu/drm/i915/intel_drv.h | 1 +
include/drm/drm_fb_helper.h | 2 ++
4 files changed, 78 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index f6d4d97..07de6d1 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -159,6 +159,8 @@ int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_
{
struct drm_fb_helper_connector **temp;
struct drm_fb_helper_connector *fb_helper_connector;
+ struct drm_crtc *crtc = connector->encoder ?
+ connector->encoder->crtc : NULL;
if (!drm_fbdev_emulation)
return 0;
@@ -180,6 +182,11 @@ int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_
drm_connector_reference(connector);
fb_helper_connector->connector = connector;
+ if (crtc && crtc->primary->state)
+ fb_helper_connector->rotation = crtc->primary->state->rotation;
+ if (!fb_helper_connector->rotation)
+ fb_helper_connector->rotation = DRM_ROTATE_0;
+
fb_helper->connector_info[fb_helper->connector_count++] = fb_helper_connector;
return 0;
}
@@ -333,6 +340,35 @@ int drm_fb_helper_debug_leave(struct fb_info *info)
}
EXPORT_SYMBOL(drm_fb_helper_debug_leave);
+static int fbdev_plane_index(struct drm_fb_helper *fb_helper,
+ struct drm_plane *plane)
+{
+ int i;
+
+ if (plane->type != DRM_PLANE_TYPE_PRIMARY)
+ return -ENODEV;
+
+ for (i = 0; i < fb_helper->crtc_count; i++) {
+ struct drm_crtc *crtc = fb_helper->crtc_info[i].mode_set.crtc;
+
+ if (crtc && crtc->primary == plane)
+ return i;
+ }
+
+ return -ENODEV;
+}
+
+static unsigned int fbdev_plane_rotation(struct drm_fb_helper *fb_helper,
+ struct drm_plane *plane)
+{
+ int i = fbdev_plane_index(fb_helper, plane);
+
+ if (i < 0)
+ return DRM_ROTATE_0;
+ else
+ return fb_helper->crtc_info[i].rotation;
+}
+
static int restore_fbdev_mode_atomic(struct drm_fb_helper *fb_helper)
{
struct drm_device *dev = fb_helper->dev;
@@ -357,7 +393,7 @@ static int restore_fbdev_mode_atomic(struct drm_fb_helper *fb_helper)
goto fail;
}
- plane_state->rotation = DRM_ROTATE_0;
+ plane_state->rotation = fbdev_plane_rotation(fb_helper, plane);
plane->old_fb = plane->fb;
plane_mask |= 1 << drm_plane_index(plane);
@@ -415,7 +451,7 @@ static int restore_fbdev_mode(struct drm_fb_helper *fb_helper)
if (plane->rotation_property)
drm_mode_plane_set_obj_prop(plane,
plane->rotation_property,
- DRM_ROTATE_0);
+ fbdev_plane_rotation(fb_helper, plane));
}
for (i = 0; i < fb_helper->crtc_count; i++) {
@@ -760,6 +796,7 @@ int drm_fb_helper_init(struct drm_device *dev,
if (!fb_helper->crtc_info[i].mode_set.connectors)
goto out_free;
fb_helper->crtc_info[i].mode_set.num_connectors = 0;
+ fb_helper->crtc_info[i].rotation = DRM_ROTATE_0;
}
i = 0;
@@ -2090,8 +2127,14 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
if (!drm_mode_equal(modes[o], modes[n]))
continue;
+
+ if (crtc->rotation &&
+ crtc->rotation != fb_helper_conn->rotation)
+ continue;
}
+ crtc->rotation = fb_helper_conn->rotation;
+
crtcs[n] = crtc;
memcpy(crtcs, best_crtcs, n * sizeof(struct drm_fb_helper_crtc *));
score = my_score + drm_pick_crtcs(fb_helper, crtcs, modes, n + 1,
@@ -2182,6 +2225,7 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
fb_crtc->desired_mode = mode;
fb_crtc->x = offset->x;
fb_crtc->y = offset->y;
+ fb_crtc->rotation = fb_helper->connector_info[i]->rotation;
modeset->mode = drm_mode_duplicate(dev,
fb_crtc->desired_mode);
drm_connector_reference(connector);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index e1e828a..29addfe 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2757,6 +2757,8 @@ intel_find_initial_plane_obj(struct intel_crtc *intel_crtc,
plane_state->crtc_w = fb->width;
plane_state->crtc_h = fb->height;
+ plane_state->rotation = plane_config->rotation;
+
intel_state->base.src = drm_plane_state_src(plane_state);
intel_state->base.dst = drm_plane_state_dest(plane_state);
@@ -7407,6 +7409,9 @@ i9xx_get_initial_plane_config(struct intel_crtc *crtc,
plane_config->tiling = I915_TILING_X;
fb->modifier = I915_FORMAT_MOD_X_TILED;
}
+
+ if (val & DISPPLANE_ROTATE_180)
+ plane_config->rotation = DRM_ROTATE_180;
}
pixel_format = val & DISPPLANE_PIXFORMAT_MASK;
@@ -8459,6 +8464,24 @@ skylake_get_initial_plane_config(struct intel_crtc *crtc,
goto error;
}
+ /*
+ * DRM_ROTATE_ is counter clockwise to stay compatible with Xrandr
+ * while i915 HW rotation is clockwise, thats why this swapping.
+ */
+ switch (val & PLANE_CTL_ROTATE_MASK) {
+ case PLANE_CTL_ROTATE_0:
+ break;
+ case PLANE_CTL_ROTATE_90:
+ plane_config->rotation = DRM_ROTATE_270;
+ break;
+ case PLANE_CTL_ROTATE_180:
+ plane_config->rotation = DRM_ROTATE_180;
+ break;
+ case PLANE_CTL_ROTATE_270:
+ plane_config->rotation = DRM_ROTATE_90;
+ break;
+ }
+
base = I915_READ(PLANE_SURF(pipe, 0)) & 0xfffff000;
plane_config->base = base;
@@ -8548,6 +8571,9 @@ ironlake_get_initial_plane_config(struct intel_crtc *crtc,
plane_config->tiling = I915_TILING_X;
fb->modifier = I915_FORMAT_MOD_X_TILED;
}
+
+ if (val & DISPPLANE_ROTATE_180)
+ plane_config->rotation = DRM_ROTATE_180;
}
pixel_format = val & DISPPLANE_PIXFORMAT_MASK;
@@ -15045,7 +15071,9 @@ int intel_modeset_init(struct drm_device *dev)
drm_modeset_unlock_all(dev);
for_each_intel_crtc(dev, crtc) {
- struct intel_initial_plane_config plane_config = {};
+ struct intel_initial_plane_config plane_config = {
+ .rotation = DRM_ROTATE_0
+ };
if (!crtc->active)
continue;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 11f2e41..c1dcd87 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -421,6 +421,7 @@ struct intel_initial_plane_config {
unsigned int tiling;
int size;
u32 base;
+ uint8_t rotation;
};
#define SKL_MIN_SRC_W 8
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 6f5aceb..19fc313 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -48,6 +48,7 @@ struct drm_fb_helper_crtc {
struct drm_mode_set mode_set;
struct drm_display_mode *desired_mode;
int x, y;
+ uint8_t rotation;
};
/**
@@ -159,6 +160,7 @@ struct drm_fb_helper_funcs {
struct drm_fb_helper_connector {
struct drm_connector *connector;
+ uint8_t rotation;
};
/**
--
2.9.3
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