From 7294e9e1f4b02b8771b6bcd6a5f24e932e958b6f Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date: Thu, 31 Oct 2019 12:26:09 +0100
Subject: drm/i915: Complete plane hw and uapi split, v2.
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Git-commit: 380015bfd9ceea7eb790ecd222dedb9f15613e59
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Splitting plane state is easier than splitting crtc_state,
before plane check we copy the drm properties to hw so we can
do the same in bigjoiner later on.
We copy the state after we did all the modeset handling, but fortunately
i915 seems to be split correctly and nothing during modeset looks
at plane_state.
Changes since v1:
- Do not clear hw state on duplication.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191031112610.27608-11-maarten.lankhorst@linux.intel.com
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
.../gpu/drm/i915/display/intel_atomic_plane.c | 37 ++++++++++++++++++-
.../gpu/drm/i915/display/intel_atomic_plane.h | 2 +
drivers/gpu/drm/i915/display/intel_display.c | 1 +
.../drm/i915/display/intel_display_types.h | 23 +++++++++---
4 files changed, 57 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
index d456b3dc200c..133e6a75c8a0 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
@@ -93,6 +93,10 @@ intel_plane_duplicate_state(struct drm_plane *plane)
intel_state->vma = NULL;
intel_state->flags = 0;
+ /* add reference to fb */
+ if (intel_state->hw.fb)
+ drm_framebuffer_get(intel_state->hw.fb);
+
return &intel_state->uapi;
}
@@ -112,6 +116,8 @@ intel_plane_destroy_state(struct drm_plane *plane,
WARN_ON(plane_state->vma);
__drm_atomic_helper_plane_destroy_state(&plane_state->uapi);
+ if (plane_state->hw.fb)
+ drm_framebuffer_put(plane_state->hw.fb);
kfree(plane_state);
}
@@ -176,15 +182,44 @@ bool intel_plane_calc_min_cdclk(struct intel_atomic_state *state,
return false;
}
+static void intel_plane_clear_hw_state(struct intel_plane_state *plane_state)
+{
+ if (plane_state->hw.fb)
+ drm_framebuffer_put(plane_state->hw.fb);
+
+ memset(&plane_state->hw, 0, sizeof(plane_state->hw));
+}
+
+void intel_plane_copy_uapi_to_hw_state(struct intel_plane_state *plane_state,
+ const struct intel_plane_state *from_plane_state)
+{
+ intel_plane_clear_hw_state(plane_state);
+
+ plane_state->hw.crtc = from_plane_state->uapi.crtc;
+ plane_state->hw.fb = from_plane_state->uapi.fb;
+ if (plane_state->hw.fb)
+ drm_framebuffer_get(plane_state->hw.fb);
+
+ plane_state->hw.alpha = from_plane_state->uapi.alpha;
+ plane_state->hw.pixel_blend_mode =
+ from_plane_state->uapi.pixel_blend_mode;
+ plane_state->hw.rotation = from_plane_state->uapi.rotation;
+ plane_state->hw.color_encoding = from_plane_state->uapi.color_encoding;
+ plane_state->hw.color_range = from_plane_state->uapi.color_range;
+}
+
int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_state,
struct intel_crtc_state *new_crtc_state,
const struct intel_plane_state *old_plane_state,
struct intel_plane_state *new_plane_state)
{
struct intel_plane *plane = to_intel_plane(new_plane_state->uapi.plane);
- const struct drm_framebuffer *fb = new_plane_state->hw.fb;
+ const struct drm_framebuffer *fb;
int ret;
+ intel_plane_copy_uapi_to_hw_state(new_plane_state, new_plane_state);
+ fb = new_plane_state->hw.fb;
+
new_crtc_state->active_planes &= ~BIT(plane->id);
new_crtc_state->nv12_planes &= ~BIT(plane->id);
new_crtc_state->c8_planes &= ~BIT(plane->id);
diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.h b/drivers/gpu/drm/i915/display/intel_atomic_plane.h
index e61e9a82aadf..cdb0f97d09f9 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.h
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.h
@@ -20,6 +20,8 @@ extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
unsigned int intel_plane_data_rate(const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state);
+void intel_plane_copy_uapi_to_hw_state(struct intel_plane_state *plane_state,
+ const struct intel_plane_state *from_plane_state);
void intel_update_plane(struct intel_plane *plane,
const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state);
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 176468afb323..1f7c6f029d7f 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -3287,6 +3287,7 @@ intel_find_initial_plane_obj(struct intel_crtc *intel_crtc,
plane_state->fb = fb;
plane_state->crtc = &intel_crtc->base;
+ intel_plane_copy_uapi_to_hw_state(intel_state, intel_state);
atomic_or(to_intel_plane(primary)->frontbuffer_bit,
&to_intel_frontbuffer(fb)->bits);
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index f519f9bab541..fb35929d365d 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -523,11 +523,24 @@ struct intel_atomic_state {
};
struct intel_plane_state {
- union {
- struct drm_plane_state base;
- struct drm_plane_state uapi;
- struct drm_plane_state hw;
- };
+ struct drm_plane_state uapi;
+
+ /*
+ * actual hardware state, the state we program to the hardware.
+ * The following members are used to verify the hardware state:
+ * During initial hw readout, they need to be copied from uapi.
+ */
+ struct {
+ struct drm_crtc *crtc;
+ struct drm_framebuffer *fb;
+
+ u16 alpha;
+ uint16_t pixel_blend_mode;
+ unsigned int rotation;
+ enum drm_color_encoding color_encoding;
+ enum drm_color_range color_range;
+ } hw;
+
struct i915_ggtt_view view;
struct i915_vma *vma;
unsigned long flags;
--
2.28.0