linux-kernel - [PATCH v2 3/4] venus: add handling of bit depth change from firmwar

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Date:   Mon, 22 May 2023 12:18:17 +0530
From:   Dikshita Agarwal <quic_dikshita@...cinc.com>
To:     linux-media@...r.kernel.org, stanimir.k.varbanov@...il.com,
        quic_vgarodia@...cinc.com, agross@...nel.org, andersson@...nel.org,
        konrad.dybcio@...aro.org, mchehab@...nel.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        Dikshita Agarwal <quic_dikshita@...cinc.com>
Subject: [PATCH v2 3/4] venus: add handling of bit depth change from firmwar

Set opb format to TP10_UWC and dpb to client set format
when bit depth change to 10 bit is detecting by firmware.

Acked-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@...cinc.com>
---
 drivers/media/platform/qcom/venus/helpers.c | 16 ++++++++++++++++
 drivers/media/platform/qcom/venus/vdec.c    |  5 ++++-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
index 7dbaa38..b543b65 100644
--- a/drivers/media/platform/qcom/venus/helpers.c
+++ b/drivers/media/platform/qcom/venus/helpers.c
@@ -1770,6 +1770,22 @@ int venus_helper_get_out_fmts(struct venus_inst *inst, u32 v4l2_fmt,
 	if (!caps)
 		return -EINVAL;
 
+	if (inst->bit_depth == VIDC_BITDEPTH_10 && inst->session_type == VIDC_SESSION_TYPE_DEC) {
+		found_ubwc = find_fmt_from_caps(caps, HFI_BUFFER_OUTPUT,
+						HFI_COLOR_FORMAT_YUV420_TP10_UBWC);
+		found = find_fmt_from_caps(caps, HFI_BUFFER_OUTPUT2, fmt);
+		if (found_ubwc && found) {
+			/*
+			 * Hard-code DPB buffers to be 10bit UBWC
+			 * until V4L2 is able to expose compressed/tiled
+			 * formats to applications.
+			 */
+			*out_fmt = HFI_COLOR_FORMAT_YUV420_TP10_UBWC;
+			*out2_fmt = fmt;
+			return 0;
+		}
+	}
+
 	if (ubwc) {
 		ubwc_fmt = fmt | HFI_COLOR_FORMAT_UBWC_BASE;
 		found_ubwc = find_fmt_from_caps(caps, HFI_BUFFER_OUTPUT,
diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
index 7aeaf77..96eceda 100644
--- a/drivers/media/platform/qcom/venus/vdec.c
+++ b/drivers/media/platform/qcom/venus/vdec.c
@@ -736,6 +736,9 @@ static int vdec_set_work_route(struct venus_inst *inst)
 }
 
 #define is_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_UBWC_BASE))
+#define is_10bit_ubwc_fmt(fmt) (!!((fmt) & HFI_COLOR_FORMAT_10_BIT_BASE & \
+				 HFI_COLOR_FORMAT_UBWC_BASE))
+
 
 static int vdec_output_conf(struct venus_inst *inst)
 {
@@ -783,7 +786,7 @@ static int vdec_output_conf(struct venus_inst *inst)
 		inst->opb_fmt = out2_fmt;
 		inst->dpb_buftype = HFI_BUFFER_OUTPUT;
 		inst->dpb_fmt = out_fmt;
-	} else if (is_ubwc_fmt(out2_fmt)) {
+	} else if (is_ubwc_fmt(out2_fmt) || is_10bit_ubwc_fmt(out_fmt)) {
 		inst->opb_buftype = HFI_BUFFER_OUTPUT;
 		inst->opb_fmt = out_fmt;
 		inst->dpb_buftype = HFI_BUFFER_OUTPUT2;
-- 
2.7.4