linux-kernel - [PATCH 5/8] firmware: cs_dsp: mock_bin: Add function to create long-offset patches

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Message-ID: <20251231104956.449696-6-rf@opensource.cirrus.com>
Date: Wed, 31 Dec 2025 10:49:53 +0000
From: Richard Fitzgerald <rf@...nsource.cirrus.com>
To: broonie@...nel.org
Cc: linux-sound@...r.kernel.org, linux-kernel@...r.kernel.org,
        patches@...nsource.cirrus.com
Subject: [PATCH 5/8] firmware: cs_dsp: mock_bin: Add function to create long-offset patches

Add cs_dsp_mock_bin_add_patch_off32(). This is the same as
cs_dsp_mock_bin_add_patch() except that it puts the offset in the
new 32-bit offset field and modifies the block type to indicate
that it uses the long offset.

Signed-off-by: Richard Fitzgerald <rf@...nsource.cirrus.com>
---
 .../firmware/cirrus/test/cs_dsp_mock_bin.c    | 28 +++++++++++++++++++
 .../linux/firmware/cirrus/cs_dsp_test_utils.h |  4 +++
 2 files changed, 32 insertions(+)

diff --git a/drivers/firmware/cirrus/test/cs_dsp_mock_bin.c b/drivers/firmware/cirrus/test/cs_dsp_mock_bin.c
index bc6b8651259c..635e917e0516 100644
--- a/drivers/firmware/cirrus/test/cs_dsp_mock_bin.c
+++ b/drivers/firmware/cirrus/test/cs_dsp_mock_bin.c
@@ -163,6 +163,34 @@ void cs_dsp_mock_bin_add_patch(struct cs_dsp_mock_bin_builder *builder,
 }
 EXPORT_SYMBOL_NS_GPL(cs_dsp_mock_bin_add_patch, "FW_CS_DSP_KUNIT_TEST_UTILS");
 
+/**
+ * cs_dsp_mock_bin_add_patch_off32() - Add a patch data block with 32-bit offset.
+ *
+ * @builder:		Pointer to struct cs_dsp_mock_bin_builder.
+ * @alg_id:		Algorithm ID for the patch.
+ * @alg_ver:		Algorithm version for the patch.
+ * @mem_region:		Memory region for the patch.
+ * @reg_addr_offset:	Offset to start of data in register addresses.
+ * @payload_data:	Pointer to buffer containing the payload data.
+ * @payload_len_bytes:	Length of payload data in bytes.
+ */
+void cs_dsp_mock_bin_add_patch_off32(struct cs_dsp_mock_bin_builder *builder,
+				     unsigned int alg_id, unsigned int alg_ver,
+				     int mem_region, unsigned int reg_addr_offset,
+				     const void *payload_data, size_t payload_len_bytes)
+{
+	/* Payload length must be a multiple of 4 */
+	KUNIT_ASSERT_EQ(builder->test_priv->test, payload_len_bytes % 4, 0);
+
+	/* Mark the block as using the 32-bit offset */
+	mem_region |= 0xf400;
+
+	cs_dsp_mock_bin_add_raw_block(builder, alg_id, alg_ver,
+				      mem_region, 0, reg_addr_offset,
+				      payload_data, payload_len_bytes);
+}
+EXPORT_SYMBOL_NS_GPL(cs_dsp_mock_bin_add_patch_off32, "FW_CS_DSP_KUNIT_TEST_UTILS");
+
 /**
  * cs_dsp_mock_bin_init() - Initialize a struct cs_dsp_mock_bin_builder.
  *
diff --git a/include/linux/firmware/cirrus/cs_dsp_test_utils.h b/include/linux/firmware/cirrus/cs_dsp_test_utils.h
index 877fa4a496dd..51e99f47e90e 100644
--- a/include/linux/firmware/cirrus/cs_dsp_test_utils.h
+++ b/include/linux/firmware/cirrus/cs_dsp_test_utils.h
@@ -136,6 +136,10 @@ void cs_dsp_mock_bin_add_patch(struct cs_dsp_mock_bin_builder *builder,
 			       unsigned int alg_id, unsigned int alg_ver,
 			       int mem_region, unsigned int reg_addr_offset,
 			       const void *payload_data, size_t payload_len_bytes);
+void cs_dsp_mock_bin_add_patch_off32(struct cs_dsp_mock_bin_builder *builder,
+				     unsigned int alg_id, unsigned int alg_ver,
+				     int mem_region, unsigned int reg_addr_offset,
+				     const void *payload_data, size_t payload_len_bytes);
 struct firmware *cs_dsp_mock_bin_get_firmware(struct cs_dsp_mock_bin_builder *builder);
 
 struct cs_dsp_mock_wmfw_builder *cs_dsp_mock_wmfw_init(struct cs_dsp_test *priv,
-- 
2.43.0