From a9b67c036c7f5d187fb88eb74fe04dff1098700f Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 20 Aug 2024 15:19:04 -0400
Subject: [PATCH] drm/amdgpu: add experimental resets debug flag
Add this flag to enable experimental resets for testing before they
are fully validated.
Reviewed-and-tested-by: Jiadong Zhu <Jiadong.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 6 ++++++
2 files changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 7fe41a3c25413..e095572458cde 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1164,6 +1164,7 @@ struct amdgpu_device {
bool debug_disable_soft_recovery;
bool debug_use_vram_fw_buf;
bool debug_enable_ras_aca;
+ bool debug_exp_resets;
bool enforce_isolation[MAX_XCP];
/* Added this mutex for cleaner shader isolation between GFX and compute processes */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 5dd39e6c6223e..8dee7c62c801d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -131,6 +131,7 @@ enum AMDGPU_DEBUG_MASK {
AMDGPU_DEBUG_DISABLE_GPU_SOFT_RECOVERY = BIT(2),
AMDGPU_DEBUG_USE_VRAM_FW_BUF = BIT(3),
AMDGPU_DEBUG_ENABLE_RAS_ACA = BIT(4),
+ AMDGPU_DEBUG_ENABLE_EXP_RESETS = BIT(5),
};
unsigned int amdgpu_vram_limit = UINT_MAX;
@@ -2199,6 +2200,11 @@ static void amdgpu_init_debug_options(struct amdgpu_device *adev)
pr_info("debug: enable RAS ACA\n");
adev->debug_enable_ras_aca = true;
}
+
+ if (amdgpu_debug_mask & AMDGPU_DEBUG_ENABLE_EXP_RESETS) {
+ pr_info("debug: enable experimental reset features\n");
+ adev->debug_exp_resets = true;
+ }
}
static unsigned long amdgpu_fix_asic_type(struct pci_dev *pdev, unsigned long flags)
--
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