[PATCH 6.18 063/309] drm/amdgpu: fix gpu idle power consumption issue for gfx v12

Greg Kroah-Hartman
2026-03-31T17:00:46Z

From: Yang Wang <kevinyang.wang@amd.com>

[ Upstream commit a6571045cf06c4aa749b4801382ae96650e2f0e1 ]

Older versions of the MES firmware may cause abnormal GPU power consumption.
When performing inference tasks on the GPU (e.g., with Ollama using ROCm),
the GPU may show abnormal power consumption in idle state and incorrect GPU load information.
This issue has been fixed in firmware version 0x8b and newer.

Closes: https://github.com/ROCm/ROCm/issues/5706
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 4e22a5fe6ea6e0b057e7f246df4ac3ff8bfbc46a)
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/amdgpu/mes_v12_0.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/mes_v12_0.c b/drivers/gpu/drm/amd/amdgpu/mes_v12_0.c
index 4a424c1f9d55c..c40aed5a8fc21 100644
--- a/drivers/gpu/drm/amd/amdgpu/mes_v12_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mes_v12_0.c
@@ -727,6 +727,9 @@ static int mes_v12_0_set_hw_resources(struct amdgpu_mes *mes, int pipe)
int i;
struct amdgpu_device *adev = mes->adev;
union MESAPI_SET_HW_RESOURCES mes_set_hw_res_pkt;
+ uint32_t mes_rev = (pipe == AMDGPU_MES_SCHED_PIPE) ?
+ (mes->sched_version & AMDGPU_MES_VERSION_MASK) :
+ (mes->kiq_version & AMDGPU_MES_VERSION_MASK);

memset(&mes_set_hw_res_pkt, 0, sizeof(mes_set_hw_res_pkt));

@@ -781,7 +784,7 @@ static int mes_v12_0_set_hw_resources(struct amdgpu_mes *mes, int pipe)
* handling support, other queue will not use the oversubscribe timer.
* handling mode - 0: disabled; 1: basic version; 2: basic+ version
*/
- mes_set_hw_res_pkt.oversubscription_timer = 50;
+ mes_set_hw_res_pkt.oversubscription_timer = mes_rev < 0x8b ? 0 : 50;
mes_set_hw_res_pkt.unmapped_doorbell_handling = 1;

if (amdgpu_mes_log_enable) {
--
2.51.0