From: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
This property is needed by to inform the KVMr feature about our
current rotation: whenever we change the rotation, we should change
that property so that the KVMr knows that the screen is rotated.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_reg.h | 5 +++
drivers/gpu/drm/i915/intel_display.c | 57 ++++++++++++++++++++++++++++++++++
drivers/gpu/drm/i915/intel_drv.h | 2 +
3 files changed, 64 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index c3afb78..49e4f10 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2324,6 +2324,11 @@
#define PIPECONF_INTERLACE_FIELD_0_ONLY (7 << 21)
#define PIPECONF_INTERLACE_MASK (7 << 21)
#define PIPECONF_CXSR_DOWNCLOCK (1<<16)
+#define PIPECONF_ROTATION_MASK (3 << 14)
+#define PIPECONF_ROTATION_0 (0 << 14)
+#define PIPECONF_ROTATION_90 (1 << 14)
+#define PIPECONF_ROTATION_180 (2 << 14)
+#define PIPECONF_ROTATION_270 (3 << 14)
#define PIPECONF_BPP_MASK (0x000000e0)
#define PIPECONF_BPP_8 (0<<5)
#define PIPECONF_BPP_10 (1<<5)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 29743de..7ec1b18 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7072,6 +7072,8 @@ static void intel_crtc_destroy(struct drm_crtc *crtc)
kfree(work);
}
+ drm_property_destroy(dev, intel_crtc->rotation_property);
+
drm_crtc_cleanup(crtc);
kfree(intel_crtc);
@@ -7529,6 +7531,49 @@ static void intel_crtc_reset(struct drm_crtc *crtc)
intel_sanitize_modesetting(dev, intel_crtc->pipe, intel_crtc->plane);
}
+static void intel_crtc_set_rotation(struct drm_crtc *crtc,
+ uint64_t rotation)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int reg = PIPECONF(intel_crtc->pipe);
+ u32 val = I915_READ(reg);
+
+ val &= ~PIPECONF_ROTATION_MASK;
+
+ switch (rotation) {
+ case 0:
+ val |= PIPECONF_ROTATION_0;
+ break;
+ case 90:
+ val |= PIPECONF_ROTATION_90;
+ break;
+ case 180:
+ val |= PIPECONF_ROTATION_180;
+ break;
+ case 270:
+ val |= PIPECONF_ROTATION_270;
+ break;
+ default:
+ DRM_ERROR("Unsupported rotation: %Lu\n", rotation);
+ val |= PIPECONF_ROTATION_0;
+ }
+
+ I915_WRITE(reg, val);
+}
+
+static int intel_crtc_set_property(struct drm_crtc *crtc,
+ struct drm_property *property,
+ uint64_t val)
+{
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+
+ if (property == intel_crtc->rotation_property)
+ intel_crtc_set_rotation(crtc, val);
+ return 0;
+}
+
static struct drm_crtc_helper_funcs intel_helper_funcs = {
.dpms = intel_crtc_dpms,
.mode_fixup = intel_crtc_mode_fixup,
@@ -7547,12 +7592,14 @@ static const struct drm_crtc_funcs intel_crtc_funcs = {
.set_config = drm_crtc_helper_set_config,
.destroy = intel_crtc_destroy,
.page_flip = intel_crtc_page_flip,
+ .set_property = intel_crtc_set_property,
};
static void intel_crtc_init(struct drm_device *dev, int pipe)
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc;
+ struct drm_property *prop;
int i;
intel_crtc = kzalloc(sizeof(struct intel_crtc) + (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
@@ -7568,6 +7615,16 @@ static void intel_crtc_init(struct drm_device *dev, int pipe)
intel_crtc->lut_b[i] = i;
}
+ prop = drm_property_create(dev, DRM_MODE_PROP_RANGE, "rotation", 2);
+ if (prop == NULL) {
+ DRM_ERROR("Failed to create rotation property!\n");
+ BUG();
+ }
+ prop->values[0] = 0;
+ prop->values[1] = 359;
+ drm_crtc_attach_property(&intel_crtc->base, prop, 0);
+ intel_crtc->rotation_property = prop;
+
/* Swap pipes & planes for FBC on pre-965 */
intel_crtc->pipe = pipe;
intel_crtc->plane = pipe;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 5ac8a16..26bdc65 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -176,6 +176,8 @@ struct intel_crtc {
bool no_pll; /* tertiary pipe for IVB */
bool use_pll_a;
+
+ struct drm_property *rotation_property;
};
struct intel_plane {
--
1.7.8.3
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