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From 01a5fbe3d6b0f7bf430a43d5b9ab26cf538acb1a Mon Sep 17 00:00:00 2001
From: Rex Zhu <Rex.Zhu@amd.com>
Date: Sat, 29 Sep 2018 20:28:14 +0800
Subject: [PATCH 0474/2940] drm/amd/pp: Implement load_firmware interface
with this interface, gfx/sdma can be initialized
before smu.
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
---
drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
index b2ebcb1457b5..6bc8e9c08b0c 100644
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -270,8 +270,23 @@ const struct amdgpu_ip_block_version pp_smu_ip_block =
.funcs = &pp_ip_funcs,
};
+/* This interface only be supported On Vi,
+ * because only smu7/8 can help to load gfx/sdma fw,
+ * smu need to be enabled before load other ip's fw.
+ * so call start smu to load smu7 fw and other ip's fw
+ */
static int pp_dpm_load_fw(void *handle)
{
+ struct pp_hwmgr *hwmgr = handle;
+
+ if (!hwmgr || !hwmgr->smumgr_funcs || !hwmgr->smumgr_funcs->start_smu)
+ return -EINVAL;
+
+ if (hwmgr->smumgr_funcs->start_smu(hwmgr)) {
+ pr_err("fw load failed\n");
+ return -EINVAL;
+ }
+
return 0;
}
--
2.17.1
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