From 59fd50b8663b4e703b44f9b51a2e715dc6e344c1 Mon Sep 17 00:00:00 2001
From: "Jesse.zhang@amd.com" <Jesse.zhang@amd.com>
Date: Mon, 4 Nov 2024 13:15:49 +0800
Subject: drm/amdgpu: Add sysfs interface for sdma reset mask
Add the sysfs interface for sdma:
sdma_reset_mask
The interface is read-only and show the resets supported by the IP.
For example, full adapter reset (mode1/mode2/BACO/etc),
soft reset, queue reset, and pipe reset.
V2: the sysfs node returns a text string instead of some flags (Christian)
v3: add a generic helper which takes the ring as parameter
and print the strings in the order they are applied (Christian)
check amdgpu_gpu_recovery before creating sysfs file itself,
and initialize supported_reset_types in IP version files (Lijo)
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Tim Huang <tim.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
(limited to 'drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c')
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c
index ffa8c62ac101..ba5160399ab2 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c
@@ -1357,6 +1357,24 @@ static int sdma_v5_2_sw_init(struct amdgpu_ip_block *ip_block)
return r;
}
+ adev->sdma.supported_reset =
+ amdgpu_get_soft_full_reset_mask(&adev->sdma.instance[0].ring);
+ switch (amdgpu_ip_version(adev, SDMA0_HWIP, 0)) {
+ case IP_VERSION(5, 2, 0):
+ case IP_VERSION(5, 2, 2):
+ case IP_VERSION(5, 2, 3):
+ case IP_VERSION(5, 2, 4):
+ if (adev->sdma.instance[0].fw_version >= 76)
+ adev->sdma.supported_reset |= AMDGPU_RESET_TYPE_PER_QUEUE;
+ break;
+ case IP_VERSION(5, 2, 5):
+ if (adev->sdma.instance[0].fw_version >= 34)
+ adev->sdma.supported_reset |= AMDGPU_RESET_TYPE_PER_QUEUE;
+ break;
+ default:
+ break;
+ }
+
/* Allocate memory for SDMA IP Dump buffer */
ptr = kcalloc(adev->sdma.num_instances * reg_count, sizeof(uint32_t), GFP_KERNEL);
if (ptr)
@@ -1364,6 +1382,10 @@ static int sdma_v5_2_sw_init(struct amdgpu_ip_block *ip_block)
else
DRM_ERROR("Failed to allocated memory for SDMA IP Dump\n");
+ r = amdgpu_sdma_sysfs_reset_mask_init(adev);
+ if (r)
+ return r;
+
return r;
}
@@ -1375,6 +1397,7 @@ static int sdma_v5_2_sw_fini(struct amdgpu_ip_block *ip_block)
for (i = 0; i < adev->sdma.num_instances; i++)
amdgpu_ring_fini(&adev->sdma.instance[i].ring);
+ amdgpu_sdma_sysfs_reset_mask_fini(adev);
amdgpu_sdma_destroy_inst_ctx(adev, true);
kfree(adev->sdma.ip_dump);
--
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