[PATCH] drm/amdgpu: Update boot time errors polling sequence

[Hawking Zhang]

Update boot time errors polling seqeunce to align with
the latest firmware change.

Signed-off-by: Hawking Zhang <Hawking.Zhang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 14 +++++++++++++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h |  5 +++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 9e67355d4718..9b7a5c1c9af5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -4122,6 +4122,18 @@ static int amdgpu_ras_wait_for_boot_complete(struct amdgpu_device *adev,
 	u32 reg_data;
 	int retry_loop;
 
+	reg_addr = (mmMP0_SMN_C2PMSG_92 << 2) +
+		   aqua_vanjaram_encode_ext_smn_addressing(instance);
+
+	for (retry_loop = 0; retry_loop < AMDGPU_RAS_BOOT_STATUS_POLLING_LIMIT; retry_loop++) {
+		reg_data = amdgpu_device_indirect_rreg_ext(adev, reg_addr);
+		if ((reg_data & AMDGPU_RAS_BOOT_STATUS_MASK) == AMDGPU_RAS_BOOT_STEADY_STATUS) {
+			*boot_error = AMDGPU_RAS_BOOT_SUCEESS;
+			return 0;
+		}
+		msleep(1);
+	}
+
 	/* The pattern for smn addressing in other SOC could be different from
 	 * the one for aqua_vanjaram. We should revisit the code if the pattern
 	 * is changed. In such case, replace the aqua_vanjaram implementation
@@ -4129,7 +4141,7 @@ static int amdgpu_ras_wait_for_boot_complete(struct amdgpu_device *adev,
 	reg_addr = (mmMP0_SMN_C2PMSG_126 << 2) +
 		   aqua_vanjaram_encode_ext_smn_addressing(instance);
 
-	for (retry_loop = 0; retry_loop < 1000; retry_loop++) {
+	for (retry_loop = 0; retry_loop < AMDGPU_RAS_BOOT_STATUS_POLLING_LIMIT; retry_loop++) {
 		reg_data = amdgpu_device_indirect_rreg_ext(adev, reg_addr);
 		if (AMDGPU_RAS_GPU_ERR_BOOT_STATUS(reg_data)) {
 			*boot_error = reg_data;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
index 0b6ffae1e8bb..d10e5bb0e52f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
@@ -46,6 +46,11 @@ struct amdgpu_iv_entry;
 #define AMDGPU_RAS_GPU_ERR_HBM_ID(x)			AMDGPU_GET_REG_FIELD(x, 13, 13)
 #define AMDGPU_RAS_GPU_ERR_BOOT_STATUS(x)		AMDGPU_GET_REG_FIELD(x, 31, 31)
 
+#define AMDGPU_RAS_BOOT_STATUS_POLLING_LIMIT	1000
+#define AMDGPU_RAS_BOOT_STEADY_STATUS		0xBA
+#define AMDGPU_RAS_BOOT_STATUS_MASK		0xFF
+#define AMDGPU_RAS_BOOT_SUCEESS			0x80000000
+
 #define AMDGPU_RAS_FLAG_INIT_BY_VBIOS		(0x1 << 0)
 /* position of instance value in sub_block_index of
  * ta_ras_trigger_error_input, the sub block uses lower 12 bits
-- 
2.17.1