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From: Gang Ba <gaba-5C7GfCeVMHo@public.gmane.org>
To: "amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org"
	<amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
Cc: "Ba, Gang" <Gang.Ba-5C7GfCeVMHo@public.gmane.org>
Subject: [PATCH] drm/amd/amdgpu: Modify sdma instance number
Date: Wed, 21 Aug 2019 14:32:59 +0000	[thread overview]
Message-ID: <1566397966-4357-1-git-send-email-gaba@amd.com> (raw)

To upgrade performance in small bar mode, set sdma buffer function
ring and pte function ring to use different instance.

Change-Id: Ida6377914eb68a188f745e63409f344f0ce1a8c4
Signed-off-by: Gang Ba <gaba@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
index 071d6c9..5aca9bb4a 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
@@ -2500,7 +2500,7 @@ static void sdma_v4_0_set_buffer_funcs(struct amdgpu_device *adev)
 {
 	adev->mman.buffer_funcs = &sdma_v4_0_buffer_funcs;
 	if (adev->sdma.has_page_queue && adev->sdma.num_instances > 1)
-		adev->mman.buffer_funcs_ring = &adev->sdma.instance[1].page;
+		adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].page;
 	else
 		adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
 }
-- 
2.7.4

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             reply	other threads:[~2019-08-21 14:32 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-21 14:32 Gang Ba [this message]
     [not found] ` <1566397966-4357-1-git-send-email-gaba-5C7GfCeVMHo@public.gmane.org>
2019-08-21 14:35   ` [PATCH] drm/amd/amdgpu: Modify sdma instance number Christian König

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