From: Yong Zhao <yong.zhao@amd.com>
Date: Mon, 18 Sep 2017 14:25:31 -0400
Subject: drm/amdgpu: Correct bytes limit for SDMA 3.0 copy and fill
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Git-commit: dfe5c2b76b2a32cd37283809737e55f9208f8346
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Signed-off-by: Yong Zhao <yong.zhao@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
@@ -1730,11 +1730,11 @@ static void sdma_v3_0_emit_fill_buffer(s
}
static const struct amdgpu_buffer_funcs sdma_v3_0_buffer_funcs = {
- .copy_max_bytes = 0x1fffff,
+ .copy_max_bytes = 0x3fffe0, /* not 0x3fffff due to HW limitation */
.copy_num_dw = 7,
.emit_copy_buffer = sdma_v3_0_emit_copy_buffer,
- .fill_max_bytes = 0x1fffff,
+ .fill_max_bytes = 0x3fffe0, /* not 0x3fffff due to HW limitation */
.fill_num_dw = 5,
.emit_fill_buffer = sdma_v3_0_emit_fill_buffer,
};