linux-kernel - [PATCH v5 2/5] drm/msm/dpu: use dpu core's major version to enable data compress

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Date:   Tue, 11 Jul 2023 18:20:00 -0700
From:   Abhinav Kumar <quic_abhinavk@...cinc.com>
To:     <freedreno@...ts.freedesktop.org>, Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>,
        "Daniel Vetter" <daniel@...ll.ch>
CC:     <dri-devel@...ts.freedesktop.org>, <quic_jesszhan@...cinc.com>,
        <andersson@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH v5 2/5] drm/msm/dpu: use dpu core's major version to enable data compress

Instead of using a feature bit to decide whether to enable data
compress or not for DSC use-cases, use dpu core's major version
instead by assigning the enable_compression op based on the
dpu core's major version.

To make this possible pass the struct dpu_mdss_version to
dpu_hw_intf_init().

This will avoid defining feature bits for every bit level details of
registers.

changes in v5:
	- none

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Signed-off-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c | 8 ++++----
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.h | 3 ++-
 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c      | 2 +-
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
index 5b0f6627e29b..d766791438e7 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
@@ -523,7 +523,7 @@ static void dpu_hw_intf_enable_compression(struct dpu_hw_intf *ctx)
 }
 
 static void _setup_intf_ops(struct dpu_hw_intf_ops *ops,
-		unsigned long cap)
+		unsigned long cap, const struct dpu_mdss_version *mdss_rev)
 {
 	ops->setup_timing_gen = dpu_hw_intf_setup_timing_engine;
 	ops->setup_prg_fetch  = dpu_hw_intf_setup_prg_fetch;
@@ -543,12 +543,12 @@ static void _setup_intf_ops(struct dpu_hw_intf_ops *ops,
 		ops->disable_autorefresh = dpu_hw_intf_disable_autorefresh;
 	}
 
-	if (cap & BIT(DPU_INTF_DATA_COMPRESS))
+	if (mdss_rev->core_major_ver >= 7)
 		ops->enable_compression = dpu_hw_intf_enable_compression;
 }
 
 struct dpu_hw_intf *dpu_hw_intf_init(const struct dpu_intf_cfg *cfg,
-		void __iomem *addr)
+		void __iomem *addr, const struct dpu_mdss_version *mdss_rev)
 {
 	struct dpu_hw_intf *c;
 
@@ -569,7 +569,7 @@ struct dpu_hw_intf *dpu_hw_intf_init(const struct dpu_intf_cfg *cfg,
 	 */
 	c->idx = cfg->id;
 	c->cap = cfg;
-	_setup_intf_ops(&c->ops, c->cap->features);
+	_setup_intf_ops(&c->ops, c->cap->features, mdss_rev);
 
 	return c;
 }
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.h
index 99e21c4137f9..3b5f18dbcb4b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.h
@@ -127,9 +127,10 @@ struct dpu_hw_intf {
  * interface catalog entry.
  * @cfg:  interface catalog entry for which driver object is required
  * @addr: mapped register io address of MDP
+ * @mdss_rev: dpu core's major and minor versions
  */
 struct dpu_hw_intf *dpu_hw_intf_init(const struct dpu_intf_cfg *cfg,
-		void __iomem *addr);
+		void __iomem *addr, const struct dpu_mdss_version *mdss_rev);
 
 /**
  * dpu_hw_intf_destroy(): Destroys INTF driver context
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
index e333f4eeafc1..4a53e2c931d6 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
@@ -161,7 +161,7 @@ int dpu_rm_init(struct dpu_rm *rm,
 		struct dpu_hw_intf *hw;
 		const struct dpu_intf_cfg *intf = &cat->intf[i];
 
-		hw = dpu_hw_intf_init(intf, mmio);
+		hw = dpu_hw_intf_init(intf, mmio, cat->mdss_ver);
 		if (IS_ERR(hw)) {
 			rc = PTR_ERR(hw);
 			DPU_ERROR("failed intf object creation: err %d\n", rc);
-- 
2.40.1