From: Alex Sierra <alex.sierra@amd.com>
To: amd-gfx@lists.freedesktop.org
Cc: Alex Sierra <alex.sierra@amd.com>
Subject: [PATCH 2/2] drm/amdgpu: ih doorbell size of range changed for nbio v7.4
Date: Wed, 18 Mar 2020 18:38:01 -0500 [thread overview]
Message-ID: <20200318233801.11866-2-alex.sierra@amd.com> (raw)
In-Reply-To: <20200318233801.11866-1-alex.sierra@amd.com>
[Why]
nbio v7.4 size of ih doorbell range is 64 bit. This requires 2 DWords per register.
[How]
Change ih doorbell size from 2 to 4. This means two Dwords per ring.
Current configuration uses two ih rings.
Change-Id: Iae28c22dd6e650f56286bfa0d9e002a8562fa855
Signed-off-by: Alex Sierra <alex.sierra@amd.com>
---
drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
index 149d386590df..263dbb1f92ee 100644
--- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
+++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
@@ -185,7 +185,7 @@ static void nbio_v7_4_ih_doorbell_range(struct amdgpu_device *adev,
if (use_doorbell) {
ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, OFFSET, doorbell_index);
- ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 2);
+ ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 4);
} else
ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 0);
--
2.17.1
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next prev parent reply other threads:[~2020-03-18 23:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-18 23:38 [PATCH 1/2] drm/amdgpu: infinite retries fix from UTLC1 RB SDMA Alex Sierra
2020-03-18 23:38 ` Alex Sierra [this message]
2020-03-19 13:42 ` [PATCH 2/2] drm/amdgpu: ih doorbell size of range changed for nbio v7.4 Alex Deucher
2020-03-19 15:34 ` [PATCH 1/2] drm/amdgpu: infinite retries fix from UTLC1 RB SDMA philip yang
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