From: Sonika Jindal <sonika.jin...@intel.com>
Primary planes support 180 degree rotation. Expose the feature
through rotation drm property.
v2: Calculating linear/tiled offsets based on pipe source width and
height. Added 180 degree rotation support in ironlake_update_plane.
v3: Checking if CRTC is active before issueing update_plane. Added
wait for vblank to make sure we dont overtake page flips. Disabling
FBC since it does not work with rotated planes.
v4: Updated rotation checks for pending flips, fbc disable. Creating
rotation property only for Gen4 onwards. Property resetting as part
of lastclose.
v5: Resetting property in i915_driver_lastclose properly for planes
and crtcs. Fixed linear offset calculation that was off by 1 w.r.t
width in i9xx_update_plane and ironlake_update_plane. Removed tab
based indentation and unnecessary braces in intel_crtc_set_property
and intel_update_fbc. FBC and flip related checks should be done only
for valid crtcs.
v6: Minor nits in FBC disable checks for comments in intel_crtc_set_property
and positioning the disable code in intel_update_fbc.
v7: In case rotation property on inactive crtc is updated, we return
successfully printing debug log as crtc is inactive and only property change
is preserved.
v8: update_plane is changed to update_primary_plane, crtc->fb is changed to
crtc->primary->fb and return value of update_primary_plane is ignored.
v9: added rotation property to primary plane instead of crtc. Removing reset
of rotation property from lastclose. rotation_property is moved to drm_plane,so
drm layer will take care of resetting.
Testcase: igt/kms_rotation_crc
Cc: Daniel Vetter <daniel.vet...@ffwll.ch>
Cc: Jani Nikula <jani.nik...@linux.intel.com>
Cc: dri-de...@lists.freedesktop.org
Cc: vijay.a.purushotha...@intel.com
Signed-off-by: Uma Shankar <uma.shan...@intel.com>
Signed-off-by: Sagar Kamble <sagar.a.kam...@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/i915_dma.c | 5 --
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/intel_display.c | 94 ++++++++++++++++++++++++++++++++--
drivers/gpu/drm/i915/intel_pm.c | 8 +++
4 files changed, 98 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 5e583a1..4b6b911 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1938,14 +1938,9 @@ int i915_driver_open(struct drm_device *dev, struct
drm_file *file)
*/
void i915_driver_lastclose(struct drm_device *dev)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
-
/* On gen6+ we refuse to init without kms enabled, but then the drm core
* goes right around and calls lastclose. Check for this and don't clean
* up anything. */
- if (!dev_priv)
- return;
-
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
intel_fbdev_restore_mode(dev);
vga_switcheroo_process_delayed_switch();
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index c70c804..c600d3b 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4087,6 +4087,7 @@ enum punit_power_well {
#define DISPPLANE_NO_LINE_DOUBLE 0
#define DISPPLANE_STEREO_POLARITY_FIRST 0
#define DISPPLANE_STEREO_POLARITY_SECOND (1<<18)
+#define DISPPLANE_ROTATE_180 (1<<15)
#define DISPPLANE_TRICKLE_FEED_DISABLE (1<<14) /* Ironlake */
#define DISPPLANE_TILED (1<<10)
#define _DSPAADDR 0x70184
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 5e8e711..85bd3b8 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2414,7 +2414,9 @@ static void i9xx_update_primary_plane(struct drm_crtc
*crtc,
unsigned long linear_offset;
u32 dspcntr;
u32 reg;
+ int pixel_size;
+ pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
intel_fb = to_intel_framebuffer(fb);
obj = intel_fb->obj;
@@ -2422,6 +2424,8 @@ static void i9xx_update_primary_plane(struct drm_crtc
*crtc,
dspcntr = I915_READ(reg);
/* Mask out pixel format bits in case we change it */
dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
+ dspcntr &= ~DISPPLANE_ROTATE_180;
+
switch (fb->pixel_format) {
case DRM_FORMAT_C8:
dspcntr |= DISPPLANE_8BPP;
@@ -2463,8 +2467,6 @@ static void i9xx_update_primary_plane(struct drm_crtc
*crtc,
if (IS_G4X(dev))
dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
- I915_WRITE(reg, dspcntr);
-
linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
if (INTEL_INFO(dev)->gen >= 4) {
@@ -2477,6 +2479,17 @@ static void i9xx_update_primary_plane(struct drm_crtc
*crtc,
intel_crtc->dspaddr_offset = linear_offset;
}
+ if (to_intel_plane(crtc->primary)->rotation == BIT(DRM_ROTATE_180)) {
+ dspcntr |= DISPPLANE_ROTATE_180;
+
+ x += (intel_crtc->config.pipe_src_w - 1);
+ y += (intel_crtc->config.pipe_src_h - 1);
+ linear_offset += (intel_crtc->config.pipe_src_h - 1) *
fb->pitches[0] +
+ (intel_crtc->config.pipe_src_w - 1) *
pixel_size;
+ }
+
+ I915_WRITE(reg, dspcntr);
+
DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
i915_gem_obj_ggtt_offset(obj), linear_offset, x, y,
fb->pitches[0]);
@@ -2487,7 +2500,8 @@ static void i9xx_update_primary_plane(struct drm_crtc
*crtc,
I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
I915_WRITE(DSPLINOFF(plane), linear_offset);
} else
- I915_WRITE(DSPADDR(plane), i915_gem_obj_ggtt_offset(obj) +
linear_offset);
+ I915_WRITE(DSPADDR(plane), i915_gem_obj_ggtt_offset(obj) +
+ linear_offset);
POSTING_READ(reg);
}
@@ -2504,7 +2518,9 @@ static void ironlake_update_primary_plane(struct drm_crtc
*crtc,
unsigned long linear_offset;
u32 dspcntr;
u32 reg;
+ int pixel_size;
+ pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
intel_fb = to_intel_framebuffer(fb);
obj = intel_fb->obj;
@@ -2512,6 +2528,8 @@ static void ironlake_update_primary_plane(struct drm_crtc
*crtc,
dspcntr = I915_READ(reg);
/* Mask out pixel format bits in case we change it */
dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
+ dspcntr &= ~DISPPLANE_ROTATE_180;
+
switch (fb->pixel_format) {
case DRM_FORMAT_C8:
dspcntr |= DISPPLANE_8BPP;
@@ -2549,8 +2567,6 @@ static void ironlake_update_primary_plane(struct drm_crtc
*crtc,
else
dspcntr |= DISPPLANE_TRICKLE_FEED_DISABLE;
- I915_WRITE(reg, dspcntr);
-
linear_offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
intel_crtc->dspaddr_offset =
intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
@@ -2558,6 +2574,20 @@ static void ironlake_update_primary_plane(struct
drm_crtc *crtc,
fb->pitches[0]);
linear_offset -= intel_crtc->dspaddr_offset;
+ if (to_intel_plane(crtc->primary)->rotation == BIT(DRM_ROTATE_180)) {
+ dspcntr |= DISPPLANE_ROTATE_180;
+
+ if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) {
+ x += (intel_crtc->config.pipe_src_w - 1);
+ y += (intel_crtc->config.pipe_src_h - 1);
+ linear_offset += (intel_crtc->config.pipe_src_h - 1) *
+ fb->pitches[0] + (intel_crtc->config.pipe_src_w
- 1) *
+ pixel_size;
+ }
+ }
+
+ I915_WRITE(reg, dspcntr);
+
DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
i915_gem_obj_ggtt_offset(obj), linear_offset, x, y,
fb->pitches[0]);
@@ -11324,10 +11354,50 @@ static void intel_plane_destroy(struct drm_plane
*plane)
kfree(intel_plane);
}
+static int intel_primary_plane_set_property(struct drm_plane *plane,
+ struct drm_property *prop,
+ uint64_t val)
+{
+ struct drm_device *dev = plane->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_plane *intel_plane = to_intel_plane(plane);
+ struct intel_crtc *intel_crtc = to_intel_crtc(plane->crtc);
+ struct drm_crtc *crtc = &intel_crtc->base;
+ uint64_t old_val;
+
+ if (prop == plane->rotation_property) {
+ /* exactly one rotation angle please */
+ if (hweight32(val & 0xf) != 1)
+ return -EINVAL;
+
+ old_val = intel_plane->rotation;
+ intel_plane->rotation = val;
+
+ if (intel_crtc->active && intel_crtc->primary_enabled) {
+ intel_crtc_wait_for_pending_flips(crtc);
+
+ /* FBC does not work on some platforms for rotated
planes */
+ if (dev_priv->fbc.plane == intel_crtc->plane &&
+ INTEL_INFO(dev)->gen <= 4 && !IS_G4X(dev) &&
+ intel_plane->rotation != BIT(DRM_ROTATE_0))
+ intel_disable_fbc(dev);
+ dev_priv->display.update_primary_plane(crtc,
crtc->primary->fb,
+ 0, 0);
+
+ } else {
+ DRM_DEBUG_KMS("[CRTC:%d] is not active. Only rotation
property is updated\n",
+ crtc->base.id);
+ }
+ }
+
+ return 0;
+}
+
static const struct drm_plane_funcs intel_primary_plane_funcs = {
.update_plane = intel_primary_plane_setplane,
.disable_plane = intel_primary_plane_disable,
.destroy = intel_plane_destroy,
+ .set_property = intel_primary_plane_set_property
};
static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
@@ -11335,6 +11405,7 @@ static struct drm_plane
*intel_primary_plane_create(struct drm_device *dev,
{
struct intel_plane *primary;
const uint32_t *intel_primary_formats;
+ struct drm_i915_private *dev_priv = dev->dev_private;
int num_formats;
