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From: Jinzhou Su <Jinzhou.Su@amd.com>
To: amd-gfx@lists.freedesktop.org
Cc: Jinzhou Su <Jinzhou.Su@amd.com>,
	ray.huang@amd.com, christian.koenig@amd.com
Subject: [PATCH] drm/amdgpu: Add mem sync flag for IB allocated by SA
Date: Tue, 20 Apr 2021 16:27:30 +0800	[thread overview]
Message-ID: <20210420082730.393818-1-Jinzhou.Su@amd.com> (raw)

The buffer of SA bo will be used by many cases. So better
to flush the cache of indirect buffer allocated by SA before
commit the IB.

Signed-off-by: Jinzhou Su <Jinzhou.Su@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index 148a3b481b12..a2fe2dac32c1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -76,6 +76,8 @@ int amdgpu_ib_get(struct amdgpu_device *adev, struct amdgpu_vm *vm,
 		}
 
 		ib->ptr = amdgpu_sa_bo_cpu_addr(ib->sa_bo);
+		/* flush the cache before commit the IB */
+		ib->flags = AMDGPU_IB_FLAG_EMIT_MEM_SYNC;
 
 		if (!vm)
 			ib->gpu_addr = amdgpu_sa_bo_gpu_addr(ib->sa_bo);
-- 
2.27.0

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             reply	other threads:[~2021-04-20  8:27 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-20  8:27 Jinzhou Su [this message]
2021-04-20  8:34 ` [PATCH] drm/amdgpu: Add mem sync flag for IB allocated by SA Christian König
2021-04-20  8:49   ` Huang Rui

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