@@ -2409,6 +2409,38 @@ static int dpu_encoder_virt_add_phys_encs(
return 0;
}
+/**
+ * dpu_encoder_get_clones - Calculate the possible_clones for DPU encoder
+ * @drm_enc: DRM encoder pointer
+ * Returns: possible_clones mask
+ */
+uint32_t dpu_encoder_get_clones(struct drm_encoder *drm_enc)
+{
+ struct drm_encoder *curr;
+ int type = drm_enc->encoder_type;
+ uint32_t clone_mask = drm_encoder_mask(drm_enc);
+
+ /*
+ * Set writeback as possible clones of real-time encoders and real-time
+ * encoders as clones of writeback.
+ *
+ * Writeback encoders can't be clones of each other and real-time
+ * encoders can't be clones of each other.
+ */
+ drm_for_each_encoder(curr, drm_enc->dev) {
+ if (type == DRM_MODE_ENCODER_VIRTUAL &&
+ curr->encoder_type == DRM_MODE_ENCODER_VIRTUAL)
+ continue;
+ if (type != DRM_MODE_ENCODER_VIRTUAL &&
+ curr->encoder_type != DRM_MODE_ENCODER_VIRTUAL)
+ continue;
+
+ clone_mask |= drm_encoder_mask(curr);
+ }
+
+ return clone_mask;
+}
+
static int dpu_encoder_setup_display(struct dpu_encoder_virt *dpu_enc,
struct dpu_kms *dpu_kms,
struct msm_display_info *disp_info)
@@ -98,6 +98,8 @@ enum dpu_intf_mode dpu_encoder_get_intf_mode(struct drm_encoder *encoder);
*/
void dpu_encoder_virt_runtime_resume(struct drm_encoder *encoder);
+uint32_t dpu_encoder_get_clones(struct drm_encoder *drm_enc);
+
/**
* dpu_encoder_init - initialize virtual encoder object
* @dev: Pointer to drm device structure
@@ -2,7 +2,7 @@
/*
* Copyright (C) 2013 Red Hat
* Copyright (c) 2014-2018, The Linux Foundation. All rights reserved.
- * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
*
* Author: Rob Clark <robdclark@gmail.com>
*/
@@ -793,8 +793,11 @@ static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms)
return ret;
num_encoders = 0;
- drm_for_each_encoder(encoder, dev)
+ drm_for_each_encoder(encoder, dev) {
num_encoders++;
+ if (catalog->cwb_count > 0)
+ encoder->possible_clones = dpu_encoder_get_clones(encoder);
+ }
max_crtc_count = min(catalog->mixer_count, num_encoders);
Set writeback encoders as possible clones for non-writeback encoders and vice versa. Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com> --- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 32 +++++++++++++++++++++++++++++ drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h | 2 ++ drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 7 +++++-- 3 files changed, 39 insertions(+), 2 deletions(-)