From 6f4e90e84f11d3eb0d6c2cacd46d26013a836876 Mon Sep 17 00:00:00 2001
From: Evan Quan <evan.quan@amd.com>
Date: Wed, 4 Dec 2019 17:29:52 +0800
Subject: drm/amd/powerplay: pre-check the SMU state before issuing message
Git-commit: fcb1fe9c9e0031ff02aaa7532822807d27968044
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Abort the message issuing if the SMU was not in the right state.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 16 ++++++++--------
drivers/gpu/drm/amd/powerplay/smu_v12_0.c | 16 ++++++++--------
2 files changed, 16 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index eae3657cf1f3..f5469ad43929 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -80,15 +80,13 @@ static int smu_v11_0_wait_for_response(struct smu_context *smu)
for (i = 0; i < timeout; i++) {
cur_value = RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90);
if ((cur_value & MP1_C2PMSG_90__CONTENT_MASK) != 0)
- break;
+ return cur_value == 0x1 ? 0 : -EIO;
+
udelay(1);
}
/* timeout means wrong logic */
- if (i == timeout)
- return -ETIME;
-
- return RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90) == 0x1 ? 0 : -EIO;
+ return -ETIME;
}
int
@@ -104,9 +102,11 @@ smu_v11_0_send_msg_with_param(struct smu_context *smu,
return index;
ret = smu_v11_0_wait_for_response(smu);
- if (ret)
- pr_err("failed send message: %10s (%d) \tparam: 0x%08x response %#x\n",
- smu_get_message_name(smu, msg), index, param, ret);
+ if (ret) {
+ pr_err("Msg issuing pre-check failed and "
+ "SMU may be not in the right state!\n");
+ return ret;
+ }
WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90, 0);
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v12_0.c b/drivers/gpu/drm/amd/powerplay/smu_v12_0.c
index 269a7d73b58d..951aa4570a04 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v12_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v12_0.c
@@ -66,15 +66,13 @@ int smu_v12_0_wait_for_response(struct smu_context *smu)
for (i = 0; i < adev->usec_timeout; i++) {
cur_value = RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90);
if ((cur_value & MP1_C2PMSG_90__CONTENT_MASK) != 0)
- break;
+ return cur_value == 0x1 ? 0 : -EIO;
+
udelay(1);
}
/* timeout means wrong logic */
- if (i == adev->usec_timeout)
- return -ETIME;
-
- return RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90) == 0x1 ? 0 : -EIO;
+ return -ETIME;
}
int
@@ -90,9 +88,11 @@ smu_v12_0_send_msg_with_param(struct smu_context *smu,
return index;
ret = smu_v12_0_wait_for_response(smu);
- if (ret)
- pr_err("Failed to send message 0x%x, response 0x%x, param 0x%x\n",
- index, ret, param);
+ if (ret) {
+ pr_err("Msg issuing pre-check failed and "
+ "SMU may be not in the right state!\n");
+ return ret;
+ }
WREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90, 0);
--
2.28.0