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From:   Kuogee Hsieh <quic_khsieh@quicinc.com>
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CC:     Kuogee Hsieh <quic_khsieh@quicinc.com>,
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        <linux-kernel@vger.kernel.org>
Subject: [PATCH v6 2/8] drm/msm/dpu: add DPU_PINGPONG_DSC feature bit for DPU < 7.0.0
Date:   Wed, 10 May 2023 15:07:27 -0700
Message-ID: <1683756453-22050-3-git-send-email-quic_khsieh@quicinc.com>
In-Reply-To: <1683756453-22050-1-git-send-email-quic_khsieh@quicinc.com>
References: <1683756453-22050-1-git-send-email-quic_khsieh@quicinc.com>
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DPU < 7.0.0 requires the PINGPONG block to be involved during
DSC setting up. Since DPU >= 7.0.0, enabling and starting the DSC
encoder engine moved to INTF with the help of the flush mechanism.
Add a DPU_PINGPONG_DSC feature bit to restrict the availability of
dpu_hw_pp_setup_dsc() and dpu_hw_pp_dsc_{enable,disable}() on the
PINGPONG block to DPU < 7.0.0 hardware, as the registers are not
available [in the PINGPONG block] on DPU 7.0.0 and higher anymore.
Existing call-sites to these callbacks already skip calling into
them if the function pointer is NULL. Add DPU_PINGPONG_DSC feature
bit to all chipset with DPU < 7.0.0.

changes in v6:
-- split patches and rearrange to keep catalog related files at this patch

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 6 +++---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 4 +++-
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
index 82b58c6..78e4bf6 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
@@ -76,13 +76,13 @@
 	(BIT(DPU_DIM_LAYER) | BIT(DPU_MIXER_COMBINED_ALPHA))
 
 #define PINGPONG_SDM845_MASK \
-	(BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_TE))
+	(BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_TE) | BIT(DPU_PINGPONG_DSC))
 
 #define PINGPONG_SDM845_TE2_MASK \
-	(PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2))
+	(PINGPONG_SDM845_MASK | BIT(DPU_PINGPONG_TE2) | BIT(DPU_PINGPONG_DSC))
 
 #define PINGPONG_SM8150_MASK \
-	(BIT(DPU_PINGPONG_DITHER))
+	(BIT(DPU_PINGPONG_DITHER) | BIT(DPU_PINGPONG_DSC))
 
 #define CTL_SC7280_MASK \
 	(BIT(DPU_CTL_ACTIVE_CFG) | \
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
index 6ee48f0..dc0a4da 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
@@ -144,7 +144,8 @@ enum {
  * @DPU_PINGPONG_TE2        Additional tear check block for split pipes
  * @DPU_PINGPONG_SPLIT      PP block supports split fifo
  * @DPU_PINGPONG_SLAVE      PP block is a suitable slave for split fifo
- * @DPU_PINGPONG_DITHER,    Dither blocks
+ * @DPU_PINGPONG_DITHER     Dither blocks
+ * @DPU_PINGPONG_DSC        PP ops functions required for DSC
  * @DPU_PINGPONG_MAX
  */
 enum {
@@ -153,6 +154,7 @@ enum {
 	DPU_PINGPONG_SPLIT,
 	DPU_PINGPONG_SLAVE,
 	DPU_PINGPONG_DITHER,
+	DPU_PINGPONG_DSC,
 	DPU_PINGPONG_MAX
 };
 
-- 
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