[PATCH V2] accel/amdxdna: Use a different name for latest firmware

[Lizhi Hou <lizhi.hou@amd.com>]

Using legacy driver with latest firmware causes a power off issue.

Fix this by assigning a different filename (npu_7.sbin) to the latest
firmware. The driver attempts to load the latest firmware first and falls
back to the previous firmware version if loading fails.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/5009
Fixes: f1eac46fe5f7 ("accel/amdxdna: Update firmware version check for latest firmware")
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
---
 drivers/accel/amdxdna/aie2_pci.c        | 20 +++++++++++++++++++-
 drivers/accel/amdxdna/amdxdna_pci_drv.c |  3 +++
 drivers/accel/amdxdna/npu1_regs.c       |  2 +-
 drivers/accel/amdxdna/npu4_regs.c       |  2 +-
 drivers/accel/amdxdna/npu5_regs.c       |  2 +-
 drivers/accel/amdxdna/npu6_regs.c       |  2 +-
 6 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/drivers/accel/amdxdna/aie2_pci.c b/drivers/accel/amdxdna/aie2_pci.c
index 4b3e6bb97bd2..85079b6fc5d9 100644
--- a/drivers/accel/amdxdna/aie2_pci.c
+++ b/drivers/accel/amdxdna/aie2_pci.c
@@ -32,6 +32,11 @@ static int aie2_max_col = XRS_MAX_COL;
 module_param(aie2_max_col, uint, 0600);
 MODULE_PARM_DESC(aie2_max_col, "Maximum column could be used");
 
+static char *npu_fw[] = {
+	"npu_7.sbin",
+	"npu.sbin"
+};
+
 /*
  * The management mailbox channel is allocated by firmware.
  * The related register and ring buffer information is on SRAM BAR.
@@ -489,6 +494,7 @@ static int aie2_init(struct amdxdna_dev *xdna)
 	struct psp_config psp_conf;
 	const struct firmware *fw;
 	unsigned long bars = 0;
+	char *fw_full_path;
 	int i, nvec, ret;
 
 	if (!hypervisor_is_type(X86_HYPER_NATIVE)) {
@@ -503,7 +509,19 @@ static int aie2_init(struct amdxdna_dev *xdna)
 	ndev->priv = xdna->dev_info->dev_priv;
 	ndev->xdna = xdna;
 
-	ret = request_firmware(&fw, ndev->priv->fw_path, &pdev->dev);
+	for (i = 0; i < ARRAY_SIZE(npu_fw); i++) {
+		fw_full_path = kasprintf(GFP_KERNEL, "%s%s", ndev->priv->fw_path, npu_fw[i]);
+		if (!fw_full_path)
+			return -ENOMEM;
+
+		ret = firmware_request_nowarn(&fw, fw_full_path, &pdev->dev);
+		kfree(fw_full_path);
+		if (!ret) {
+			XDNA_INFO(xdna, "Load firmware %s%s", ndev->priv->fw_path, npu_fw[i]);
+			break;
+		}
+	}
+
 	if (ret) {
 		XDNA_ERR(xdna, "failed to request_firmware %s, ret %d",
 			 ndev->priv->fw_path, ret);
diff --git a/drivers/accel/amdxdna/amdxdna_pci_drv.c b/drivers/accel/amdxdna/amdxdna_pci_drv.c
index 4ada45d06fcf..a4384593bdcc 100644
--- a/drivers/accel/amdxdna/amdxdna_pci_drv.c
+++ b/drivers/accel/amdxdna/amdxdna_pci_drv.c
@@ -23,6 +23,9 @@ MODULE_FIRMWARE("amdnpu/1502_00/npu.sbin");
 MODULE_FIRMWARE("amdnpu/17f0_10/npu.sbin");
 MODULE_FIRMWARE("amdnpu/17f0_11/npu.sbin");
 MODULE_FIRMWARE("amdnpu/17f0_20/npu.sbin");
+MODULE_FIRMWARE("amdnpu/1502_00/npu_7.sbin");
+MODULE_FIRMWARE("amdnpu/17f0_10/npu_7.sbin");
+MODULE_FIRMWARE("amdnpu/17f0_11/npu_7.sbin");
 
 /*
  * 0.0: Initial version
diff --git a/drivers/accel/amdxdna/npu1_regs.c b/drivers/accel/amdxdna/npu1_regs.c
index 6f36a27b5a02..6e3d3ca69c04 100644
--- a/drivers/accel/amdxdna/npu1_regs.c
+++ b/drivers/accel/amdxdna/npu1_regs.c
@@ -72,7 +72,7 @@ static const struct aie2_fw_feature_tbl npu1_fw_feature_table[] = {
 };
 
 static const struct amdxdna_dev_priv npu1_dev_priv = {
-	.fw_path        = "amdnpu/1502_00/npu.sbin",
+	.fw_path        = "amdnpu/1502_00/",
 	.rt_config	= npu1_default_rt_cfg,
 	.dpm_clk_tbl	= npu1_dpm_clk_table,
 	.fw_feature_tbl = npu1_fw_feature_table,
diff --git a/drivers/accel/amdxdna/npu4_regs.c b/drivers/accel/amdxdna/npu4_regs.c
index a8d6f76dde5f..ce25eef5fc34 100644
--- a/drivers/accel/amdxdna/npu4_regs.c
+++ b/drivers/accel/amdxdna/npu4_regs.c
@@ -98,7 +98,7 @@ const struct aie2_fw_feature_tbl npu4_fw_feature_table[] = {
 };
 
 static const struct amdxdna_dev_priv npu4_dev_priv = {
-	.fw_path        = "amdnpu/17f0_10/npu.sbin",
+	.fw_path        = "amdnpu/17f0_10/",
 	.rt_config	= npu4_default_rt_cfg,
 	.dpm_clk_tbl	= npu4_dpm_clk_table,
 	.fw_feature_tbl = npu4_fw_feature_table,
diff --git a/drivers/accel/amdxdna/npu5_regs.c b/drivers/accel/amdxdna/npu5_regs.c
index c0a35cfd886c..c0ac5daf32ee 100644
--- a/drivers/accel/amdxdna/npu5_regs.c
+++ b/drivers/accel/amdxdna/npu5_regs.c
@@ -63,7 +63,7 @@
 #define NPU5_SRAM_BAR_BASE	MMNPU_APERTURE1_BASE
 
 static const struct amdxdna_dev_priv npu5_dev_priv = {
-	.fw_path        = "amdnpu/17f0_11/npu.sbin",
+	.fw_path        = "amdnpu/17f0_11/",
 	.rt_config	= npu4_default_rt_cfg,
 	.dpm_clk_tbl	= npu4_dpm_clk_table,
 	.fw_feature_tbl = npu4_fw_feature_table,
diff --git a/drivers/accel/amdxdna/npu6_regs.c b/drivers/accel/amdxdna/npu6_regs.c
index 1fb07df99186..ce591ed0d483 100644
--- a/drivers/accel/amdxdna/npu6_regs.c
+++ b/drivers/accel/amdxdna/npu6_regs.c
@@ -63,7 +63,7 @@
 #define NPU6_SRAM_BAR_BASE	MMNPU_APERTURE1_BASE
 
 static const struct amdxdna_dev_priv npu6_dev_priv = {
-	.fw_path        = "amdnpu/17f0_10/npu.sbin",
+	.fw_path        = "amdnpu/17f0_10/",
 	.rt_config	= npu4_default_rt_cfg,
 	.dpm_clk_tbl	= npu4_dpm_clk_table,
 	.fw_feature_tbl = npu4_fw_feature_table,
-- 
2.34.1