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accel/amdxdna: Fix suspend failure after enabling turbo mode

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Enabling turbo mode disables hardware clock gating. Suspend requires
hardware clock gating to be re-enabled, otherwise suspend will fail.
Fix this by calling aie2_runtime_cfg() from aie2_hw_stop() to
re-enable clock gating during suspend. Also ensure that firmware is
initialized in aie2_hw_start() before modifying clock-gating
settings during resume.

Fixes: f4d7b8a6bc ("accel/amdxdna: Enhance power management settings")
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260211204716.722788-1-lizhi.hou@amd.com
This commit is contained in:
Lizhi Hou
2026-02-11 12:47:16 -08:00
parent 1aa82181a3
commit fdb65acfe6
1 changed files with 7 additions and 6 deletions
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13
drivers/accel/amdxdna/aie2_pci.c
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@@ -323,6 +323,7 @@ static void aie2_hw_stop(struct amdxdna_dev *xdna)
return;
}
aie2_runtime_cfg(ndev, AIE2_RT_CFG_CLK_GATING, NULL);
aie2_mgmt_fw_fini(ndev);
xdna_mailbox_stop_channel(ndev->mgmt_chann);
xdna_mailbox_destroy_channel(ndev->mgmt_chann);
@@ -406,18 +407,18 @@ static int aie2_hw_start(struct amdxdna_dev *xdna)
goto stop_psp;
}
ret = aie2_pm_init(ndev);
if (ret) {
XDNA_ERR(xdna, "failed to init pm, ret %d", ret);
goto destroy_mgmt_chann;
}
ret = aie2_mgmt_fw_init(ndev);
if (ret) {
XDNA_ERR(xdna, "initial mgmt firmware failed, ret %d", ret);
goto destroy_mgmt_chann;
}
ret = aie2_pm_init(ndev);
if (ret) {
XDNA_ERR(xdna, "failed to init pm, ret %d", ret);
goto destroy_mgmt_chann;
}
ret = aie2_mgmt_fw_query(ndev);
if (ret) {
XDNA_ERR(xdna, "failed to query fw, ret %d", ret);