linux-kernel - [PATCH v5 27/45] drm/amd: Load SMU microcode during early

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Date:   Wed, 4 Jan 2023 10:40:16 -0600
From:   Mario Limonciello <mario.limonciello@....com>
To:     Alex Deucher <alexander.deucher@....com>,
        <linux-kernel@...r.kernel.org>
CC:     Javier Martinez Canillas <javierm@...hat.com>,
        Carlos Soriano Sanchez <csoriano@...hat.com>,
        <amd-gfx@...ts.freedesktop.org>, <dri-devel@...ts.freedesktop.org>,
        David Airlie <airlied@...il.com>,
        "Daniel Vetter" <daniel@...ll.ch>, <christian.koenig@....com>,
        Lazar Lijo <Lijo.Lazar@....com>,
        Mario Limonciello <mario.limonciello@....com>,
        "Evan Quan" <evan.quan@....com>, "Pan, Xinhui" <Xinhui.Pan@....com>
Subject: [PATCH v5 27/45] drm/amd: Load SMU microcode during early_init

This will ensure that the microcode is available before the firmware
framebuffer has been destroyed.

Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
 drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 2fa79f892a92..ec52830dde24 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -623,6 +623,7 @@ static int smu_early_init(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 	struct smu_context *smu;
+	int r;
 
 	smu = kzalloc(sizeof(struct smu_context), GFP_KERNEL);
 	if (!smu)
@@ -640,7 +641,10 @@ static int smu_early_init(void *handle)
 	adev->powerplay.pp_handle = smu;
 	adev->powerplay.pp_funcs = &swsmu_pm_funcs;
 
-	return smu_set_funcs(adev);
+	r = smu_set_funcs(adev);
+	if (r)
+		return r;
+	return smu_init_microcode(smu);
 }
 
 static int smu_set_default_dpm_table(struct smu_context *smu)
@@ -1067,12 +1071,6 @@ static int smu_sw_init(void *handle)
 	smu->smu_dpm.dpm_level = AMD_DPM_FORCED_LEVEL_AUTO;
 	smu->smu_dpm.requested_dpm_level = AMD_DPM_FORCED_LEVEL_AUTO;
 
-	ret = smu_init_microcode(smu);
-	if (ret) {
-		dev_err(adev->dev, "Failed to load smu firmware!\n");
-		return ret;
-	}
-
 	ret = smu_smc_table_sw_init(smu);
 	if (ret) {
 		dev_err(adev->dev, "Failed to sw init smc table!\n");
-- 
2.34.1