From: Sonika Jindal <sonika.jindal@xxxxxxxxx>
The cursor plane also supports 180 degree rotation. Add a new
"cursor-rotation" property on the crtc which controls this.
Unlike sprites, the cursor has a fixed size, so if you have a small
cursor image with the rest of the bo filled by transparent pixels,
simply flipping the rotation property will cause the visible part
of the cursor to shift. This is something to keep in mind when
using cursor rotation.
v2: Fix gen4/vlv by offsetting the base address appropriately
v3: Removing cursor-rotation property and using rotation property on cursor
plane.
Testcase: kms_rotation_crc
Cc: Sagar Kamble <sagar.a.kamble@xxxxxxxxx>
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Sonika Jindal <sonika.jindal@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/intel_display.c | 26 +++++++++++++++++++++++++-
2 files changed, 26 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 15c0eaa..5a9fab9 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4162,6 +4162,7 @@ enum punit_power_well {
#define MCURSOR_PIPE_A 0x00
#define MCURSOR_PIPE_B (1 << 28)
#define MCURSOR_GAMMA_ENABLE (1 << 26)
+#define CURSOR_ROTATE_180 (1<<15)
#define CURSOR_TRICKLE_FEED_DISABLE (1 << 14)
#define _CURABASE 0x70084
#define _CURAPOS 0x70088
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 122ac6e..8c83bcc 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8247,6 +8247,9 @@ static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
if (IS_HASWELL(dev) || IS_BROADWELL(dev))
cntl |= CURSOR_PIPE_CSC_ENABLE;
+ if (to_intel_plane(crtc->cursor)->rotation == BIT(DRM_ROTATE_180))
+ cntl |= CURSOR_ROTATE_180;
+
if (intel_crtc->cursor_cntl != cntl) {
I915_WRITE(CURCNTR(pipe), cntl);
POSTING_READ(CURCNTR(pipe));
@@ -8302,6 +8305,13 @@ static void intel_crtc_update_cursor(struct drm_crtc *crtc,
I915_WRITE(CURPOS(pipe), pos);
+ /* ILK+ do this automagically */
+ if (HAS_GMCH_DISPLAY(dev) &&
+ to_intel_plane(crtc->cursor)->rotation == BIT(DRM_ROTATE_180)) {
+ base += (intel_crtc->cursor_height *
+ intel_crtc->cursor_width - 1) * 4;
+ }
+
if (IS_845G(dev) || IS_I865G(dev))
i845_update_cursor(crtc, base);
else
@@ -8453,7 +8463,6 @@ static int intel_crtc_cursor_set_obj(struct drm_crtc *crtc,
mutex_unlock(&dev->struct_mutex);
old_width = intel_crtc->cursor_width;
-
intel_crtc->cursor_addr = addr;
intel_crtc->cursor_bo = obj;
intel_crtc->cursor_width = width;
@@ -12074,6 +12083,7 @@ static const struct drm_plane_funcs intel_cursor_plane_funcs = {
.update_plane = intel_cursor_plane_update,
.disable_plane = intel_cursor_plane_disable,
.destroy = intel_plane_destroy,
+ .set_property = intel_plane_set_property,
};
static struct drm_plane *intel_cursor_plane_create(struct drm_device *dev,
@@ -12089,12 +12099,26 @@ static struct drm_plane *intel_cursor_plane_create(struct drm_device *dev,
cursor->max_downscale = 1;
cursor->pipe = pipe;
cursor->plane = pipe;
+ cursor->rotation = BIT(DRM_ROTATE_0);
drm_universal_plane_init(dev, &cursor->base, 0,
&intel_cursor_plane_funcs,
intel_cursor_formats,
ARRAY_SIZE(intel_cursor_formats),
DRM_PLANE_TYPE_CURSOR);
+
+ if (INTEL_INFO(dev)->gen >= 4) {
+ if (!dev->mode_config.rotation_property)
+ dev->mode_config.rotation_property =
+ drm_mode_create_rotation_property(dev,
+ BIT(DRM_ROTATE_0) |
+ BIT(DRM_ROTATE_180));
+ if (dev->mode_config.rotation_property)
+ drm_object_attach_property(&cursor->base.base,
+ dev->mode_config.rotation_property,
+ cursor->rotation);
+ }
+
return &cursor->base;
}
--
1.7.10.4
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