From: Felix Kuehling <Felix.Kuehling@amd.com>
To: amd-gfx@lists.freedesktop.org
Subject: [PATCH 2/2] drm/amdgpu: Let KFD use more VMIDs on Arcturus
Date: Wed, 24 Jun 2020 23:18:34 -0400 [thread overview]
Message-ID: <20200625031834.16122-2-Felix.Kuehling@amd.com> (raw)
In-Reply-To: <20200625031834.16122-1-Felix.Kuehling@amd.com>
When there is no graphics support, KFD can use more of the VMIDs. Graphics
VMIDs are only used for video decoding/encoding and post processing. With
two VCE engines, there is no reason to reserve more than 2 VMIDs for that.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 6e10b42c57e5..3470929e5b8e 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -1245,10 +1245,15 @@ static int gmc_v9_0_sw_init(void *handle)
/*
* number of VMs
* VMID 0 is reserved for System
- * amdgpu graphics/compute will use VMIDs 1-7
- * amdkfd will use VMIDs 8-15
+ * amdgpu graphics/compute will use VMIDs 1..n-1
+ * amdkfd will use VMIDs n..15
+ *
+ * The first KFD VMID is 8 for GPUs with graphics, 3 for
+ * compute-only GPUs. On compute-only GPUs that leaves 2 VMIDs
+ * for video processing.
*/
- adev->vm_manager.first_kfd_vmid = 8;
+ adev->vm_manager.first_kfd_vmid =
+ adev->asic_type == CHIP_ARCTURUS ? 3 : 8;
amdgpu_vm_manager_init(adev);
--
2.26.0
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next prev parent reply other threads:[~2020-06-25 3:19 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-25 3:18 [PATCH 1/2] drm/amdgpu: Clean up KFD VMID assignment Felix Kuehling
2020-06-25 3:18 ` Felix Kuehling [this message]
2020-06-25 8:19 ` [PATCH 2/2] drm/amdgpu: Let KFD use more VMIDs on Arcturus Christian König
2020-06-25 15:15 ` Felix Kuehling
2020-06-25 15:38 ` Christian König
2020-06-25 15:43 ` Felix Kuehling
2020-06-25 15:50 ` Christian König
2020-06-25 15:58 ` Felix Kuehling
2020-06-25 16:01 ` Christian König
2020-06-25 20:39 ` Felix Kuehling
2020-06-26 6:57 ` Christian König
2020-06-25 8:18 ` [PATCH 1/2] drm/amdgpu: Clean up KFD VMID assignment Christian König
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