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From fde1b1b979b1a3b66ed83a961ed5c89b7083b92b Mon Sep 17 00:00:00 2001
From: Philip Cox <Philip.Cox@amd.com>
Date: Wed, 29 Mar 2017 15:38:15 -0400
Subject: [PATCH 1255/4131] drm/amdkfd: Correct CZ max_waves_per_simd value
The ACPI CRAT reports the wrong value for max_waves_per_simd on
Carrizo.
Change-Id: Icb889422b76e63ce6fcada332e502a37960495b6
Signed-off-by: Philip Cox <Philip.Cox@amd.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
index 7603967..8a7beaa 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
@@ -1243,11 +1243,13 @@ int kfd_topology_add_device(struct kfd_dev *gpu)
/* Fix errors in CZ CRAT.
* simd_count: Carrizo CRAT reports wrong simd_count, probably because it
* doesn't consider masked out CUs
+ * max_waves_per_simd: Carrizo reports wrong max_waves_per_simd.
* capability flag: Carrizo CRAT doesn't report IOMMU flags.
*/
if (dev->gpu->device_info->asic_family == CHIP_CARRIZO) {
dev->node_props.simd_count =
cu_info.simd_per_cu * cu_info.cu_active_number;
+ dev->node_props.max_waves_per_simd = 10;
dev->node_props.capability |= HSA_CAP_ATS_PRESENT;
}
--
2.7.4
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