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From 75e702c42c627b911971979550c7bf0521a70635 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 31 Oct 2018 23:54:27 -0500
Subject: [PATCH 1054/2940] drm/amdgpu: add need_reset_on_init asic callback
(v2)
Used to determine if we need to reset the asic on init due
to the driver having been previously loaded or not shutdown
cleanly. E.g., kexec or VM passthrough.
v2: rebase
Reviewed-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 7f8cba98d154..b4bbaeaa050b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -551,6 +551,8 @@ struct amdgpu_asic_funcs {
/* PCIe bandwidth usage */
void (*get_pcie_usage)(struct amdgpu_device *adev, uint64_t *count0,
uint64_t *count1);
+ /* do we need to reset the asic at init time (e.g., kexec) */
+ bool (*need_reset_on_init)(struct amdgpu_device *adev);
};
/*
@@ -1083,6 +1085,7 @@ int emu_soc_asic_init(struct amdgpu_device *adev);
#define amdgpu_asic_need_full_reset(adev) (adev)->asic_funcs->need_full_reset((adev))
#define amdgpu_asic_init_doorbell_index(adev) (adev)->asic_funcs->init_doorbell_index((adev))
#define amdgpu_asic_get_pcie_usage(adev, cnt0, cnt1) ((adev)->asic_funcs->get_pcie_usage((adev), (cnt0), (cnt1)))
+#define amdgpu_asic_need_reset_on_init(adev) (adev)->asic_funcs->need_reset_on_init((adev))
/* Common functions */
bool amdgpu_device_should_recover_gpu(struct amdgpu_device *adev);
--
2.17.1
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