[PATCH 6.16 02/41] drm/amdgpu: Enable MES lr_compute_wa by default

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

6.16-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mario Limonciello <mario.limonciello@amd.com>

commit 1fb710793ce2619223adffaf981b1ff13cd48f17 upstream.

The MES set resources packet has an optional bit 'lr_compute_wa'
which can be used for preventing MES hangs on long compute jobs.

Set this bit by default.

Co-developed-by: Yifan Zhang <yifan1.zhang@amd.com>
Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/mes_v11_0.c        |    6 ++++++
 drivers/gpu/drm/amd/amdgpu/mes_v12_0.c        |    5 +++++
 drivers/gpu/drm/amd/include/mes_v11_api_def.h |    3 ++-
 drivers/gpu/drm/amd/include/mes_v12_api_def.h |    3 ++-
 4 files changed, 15 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c
@@ -711,6 +711,12 @@ static int mes_v11_0_set_hw_resources(st
 	mes_set_hw_res_pkt.enable_reg_active_poll = 1;
 	mes_set_hw_res_pkt.enable_level_process_quantum_check = 1;
 	mes_set_hw_res_pkt.oversubscription_timer = 50;
+	if ((mes->adev->mes.sched_version & AMDGPU_MES_VERSION_MASK) >= 0x7f)
+		mes_set_hw_res_pkt.enable_lr_compute_wa = 1;
+	else
+		dev_info_once(mes->adev->dev,
+			      "MES FW version must be >= 0x7f to enable LR compute workaround.\n");
+
 	if (amdgpu_mes_log_enable) {
 		mes_set_hw_res_pkt.enable_mes_event_int_logging = 1;
 		mes_set_hw_res_pkt.event_intr_history_gpu_mc_ptr =
--- a/drivers/gpu/drm/amd/amdgpu/mes_v12_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mes_v12_0.c
@@ -738,6 +738,11 @@ static int mes_v12_0_set_hw_resources(st
 	mes_set_hw_res_pkt.use_different_vmid_compute = 1;
 	mes_set_hw_res_pkt.enable_reg_active_poll = 1;
 	mes_set_hw_res_pkt.enable_level_process_quantum_check = 1;
+	if ((mes->adev->mes.sched_version & AMDGPU_MES_VERSION_MASK) >= 0x82)
+		mes_set_hw_res_pkt.enable_lr_compute_wa = 1;
+	else
+		dev_info_once(adev->dev,
+			      "MES FW version must be >= 0x82 to enable LR compute workaround.\n");
 
 	/*
 	 * Keep oversubscribe timer for sdma . When we have unmapped doorbell
--- a/drivers/gpu/drm/amd/include/mes_v11_api_def.h
+++ b/drivers/gpu/drm/amd/include/mes_v11_api_def.h
@@ -238,7 +238,8 @@ union MESAPI_SET_HW_RESOURCES {
 				uint32_t enable_mes_sch_stb_log : 1;
 				uint32_t limit_single_process : 1;
 				uint32_t is_strix_tmz_wa_enabled  :1;
-				uint32_t reserved : 13;
+				uint32_t enable_lr_compute_wa : 1;
+				uint32_t reserved : 12;
 			};
 			uint32_t	uint32_t_all;
 		};
--- a/drivers/gpu/drm/amd/include/mes_v12_api_def.h
+++ b/drivers/gpu/drm/amd/include/mes_v12_api_def.h
@@ -286,7 +286,8 @@ union MESAPI_SET_HW_RESOURCES {
 				uint32_t limit_single_process : 1;
 				uint32_t unmapped_doorbell_handling: 2;
 				uint32_t enable_mes_fence_int: 1;
-				uint32_t reserved : 10;
+				uint32_t enable_lr_compute_wa : 1;
+				uint32_t reserved : 9;
 			};
 			uint32_t uint32_all;
 		};