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[3/8] platform/x86/amd/pmc: Define enum for S2D/PMC msg_port

Message ID 20241028070438.1548737-4-Shyam-sundar.S-k@amd.com (mailing list archive)
State New
Headers show
Series platform/x86/amd/pmc: Updates to AMD PMC driver | expand

Commit Message

Shyam Sundar S K Oct. 28, 2024, 7:04 a.m. UTC 
To distinguish between the PMC message port and the S2D (Spill to DRAM)
message port, replace the use of 0 and 1 with an enum.

Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
---
 drivers/platform/x86/amd/pmc/mp1_stb.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/platform/x86/amd/pmc/mp1_stb.c b/drivers/platform/x86/amd/pmc/mp1_stb.c
index 5efec020ecac..2b06861c479b 100644
--- a/drivers/platform/x86/amd/pmc/mp1_stb.c
+++ b/drivers/platform/x86/amd/pmc/mp1_stb.c
@@ -47,6 +47,11 @@  enum s2d_arg {
 	S2D_DRAM_SIZE,
 };
 
+enum s2d_msg_port {
+	MSG_PORT_PMC,
+	MSG_PORT_S2D,
+};
+
 struct amd_stb_v2_data {
 	size_t size;
 	u8 data[] __counted_by(size);
@@ -156,7 +161,7 @@  static int amd_stb_debugfs_open_v2(struct inode *inode, struct file *filp)
 		dev_err(dev->dev, "error writing to STB: %d\n", ret);
 
 	/* Spill to DRAM num_samples uses separate SMU message port */
-	dev->msg_port = 1;
+	dev->msg_port = MSG_PORT_S2D;
 
 	ret = amd_pmc_send_cmd(dev, 0, &val, STB_FORCE_FLUSH_DATA, 1);
 	if (ret)
@@ -173,7 +178,7 @@  static int amd_stb_debugfs_open_v2(struct inode *inode, struct file *filp)
 	/* Get the num_samples to calculate the last push location */
 	ret = amd_pmc_send_cmd(dev, S2D_NUM_SAMPLES, &num_samples, dev->s2d_msg_id, true);
 	/* Clear msg_port for other SMU operation */
-	dev->msg_port = 0;
+	dev->msg_port = MSG_PORT_PMC;
 	if (ret) {
 		dev_err(dev->dev, "error: S2D_NUM_SAMPLES not supported : %d\n", ret);
 		return ret;
@@ -266,7 +271,7 @@  int amd_s2d_init(struct amd_pmc_dev *dev)
 				    &amd_stb_debugfs_fops);
 
 	/* Spill to DRAM feature uses separate SMU message port */
-	dev->msg_port = 1;
+	dev->msg_port = MSG_PORT_S2D;
 
 	amd_pmc_send_cmd(dev, S2D_TELEMETRY_SIZE, &size, dev->s2d_msg_id, true);
 	if (size != S2D_TELEMETRY_BYTES_MAX)
@@ -284,7 +289,7 @@  int amd_s2d_init(struct amd_pmc_dev *dev)
 	stb_phys_addr = ((u64)phys_addr_hi << 32 | phys_addr_low);
 
 	/* Clear msg_port for other SMU operation */
-	dev->msg_port = 0;
+	dev->msg_port = MSG_PORT_PMC;
 
 	dev->stb_virt_addr = devm_ioremap(dev->dev, stb_phys_addr, dev->dram_size);
 	if (!dev->stb_virt_addr)