From: Tiecheng Zhou <Tiecheng.Zhou-5C7GfCeVMHo@public.gmane.org>
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: Tiecheng Zhou <Tiecheng.Zhou-5C7GfCeVMHo@public.gmane.org>,
Emily Deng <Emily.Deng-5C7GfCeVMHo@public.gmane.org>
Subject: [PATCH] drm/amdgpu/sriov: Need to initialize the HDP_NONSURFACE_BAStE
Date: Tue, 14 May 2019 18:59:19 +0800 [thread overview]
Message-ID: <1557831559-6925-1-git-send-email-Tiecheng.Zhou@amd.com> (raw)
it requires to initialize HDP_NONSURFACE_BASE, so as to avoid
using the value left by a previous VM under sriov scenario.
v2: it should not hurt baremetal, generalize it for both sriov
and baremetal
Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Signed-off-by: Tiecheng Zhou <Tiecheng.Zhou@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index be729e7..c221570 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -1181,6 +1181,9 @@ static int gmc_v9_0_gart_enable(struct amdgpu_device *adev)
tmp = RREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL);
WREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL, tmp);
+ WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE, (adev->gmc.vram_start >> 8));
+ WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE_HI, (adev->gmc.vram_start >> 40));
+
/* After HDP is initialized, flush HDP.*/
adev->nbio_funcs->hdp_flush(adev, NULL);
--
2.7.4
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next reply other threads:[~2019-05-14 10:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-14 10:59 Tiecheng Zhou [this message]
[not found] ` <1557831559-6925-1-git-send-email-Tiecheng.Zhou-5C7GfCeVMHo@public.gmane.org>
2019-05-14 11:04 ` [PATCH] drm/amdgpu/sriov: Need to initialize the HDP_NONSURFACE_BAStE Christian König
-- strict thread matches above, loose matches on Subject: below --
2019-05-14 10:24 Tiecheng Zhou
[not found] ` <1557829492-5991-1-git-send-email-Tiecheng.Zhou-5C7GfCeVMHo@public.gmane.org>
2019-05-14 10:33 ` Christian König
[not found] ` <8cca3031-e258-785c-331c-6c6d32421ed0-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2019-05-14 14:17 ` Deucher, Alexander
2019-05-14 3:34 Tiecheng Zhou
[not found] ` <1557804896-4032-1-git-send-email-Tiecheng.Zhou-5C7GfCeVMHo@public.gmane.org>
2019-05-14 14:06 ` Deucher, Alexander
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