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From f587def4d4c6e722da57f164fca7acac3ee53eb6 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 19 Jun 2018 17:03:27 -0500
Subject: [PATCH 0345/2940] drm/amdgpu/gmc9: add a new gfxhub 1.1 helper for
xgmi
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Used to populate the xgmi info on vega20.
v2: PF_MAX_REGION is val - 1 (Ray)
Acked-by: Huang Rui <ray.huang@amd.com>
Acked-by: Slava Abramov <slava.abramov@amd.com>
Reviewed-by :Shaoyun liu <Shaoyun.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by :Shaoyun liu <Shaoyun.liu@amd.com>
Change-Id: Ia7b7f112880e69cdbcf73a8abf04cd6ef303940c
---
drivers/gpu/drm/amd/amdgpu/Makefile | 2 +-
drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c | 50 ++++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.h | 29 ++++++++++++++
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 7 ++++
4 files changed, 87 insertions(+), 1 deletion(-)
create mode 100644 drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c
create mode 100644 drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.h
diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
index c1d23e50b764..cbcb634b9e13 100644
--- a/drivers/gpu/drm/amd/amdgpu/Makefile
+++ b/drivers/gpu/drm/amd/amdgpu/Makefile
@@ -73,7 +73,7 @@ amdgpu-y += \
amdgpu-y += \
gmc_v7_0.o \
gmc_v8_0.o \
- gfxhub_v1_0.o mmhub_v1_0.o gmc_v9_0.o
+ gfxhub_v1_0.o mmhub_v1_0.o gmc_v9_0.o gfxhub_v1_1.o
# add IH block
amdgpu-y += \
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c
new file mode 100644
index 000000000000..d4170cb41055
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+#include "amdgpu.h"
+#include "gfxhub_v1_1.h"
+
+#include "gc/gc_9_2_1_offset.h"
+#include "gc/gc_9_2_1_sh_mask.h"
+
+#include "soc15_common.h"
+
+int gfxhub_v1_1_get_xgmi_info(struct amdgpu_device *adev)
+{
+ u32 xgmi_lfb_cntl = RREG32_SOC15(GC, 0, mmMC_VM_XGMI_LFB_CNTL);
+ u32 max_region =
+ REG_GET_FIELD(xgmi_lfb_cntl, MC_VM_XGMI_LFB_CNTL, PF_MAX_REGION);
+
+ /* PF_MAX_REGION=0 means xgmi is disabled */
+ if (max_region) {
+ adev->gmc.xgmi.num_physical_nodes = max_region + 1;
+ if (adev->gmc.xgmi.num_physical_nodes > 4)
+ return -EINVAL;
+
+ adev->gmc.xgmi.physical_node_id =
+ REG_GET_FIELD(xgmi_lfb_cntl, MC_VM_XGMI_LFB_CNTL, PF_LFB_REGION);
+ if (adev->gmc.xgmi.physical_node_id > 3)
+ return -EINVAL;
+ }
+
+ return 0;
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.h b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.h
new file mode 100644
index 000000000000..d753cf28a0a6
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __GFXHUB_V1_1_H__
+#define __GFXHUB_V1_1_H__
+
+int gfxhub_v1_1_get_xgmi_info(struct amdgpu_device *adev);
+
+#endif
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 229e61c8f514..b1549bf52f70 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -43,6 +43,7 @@
#include "gfxhub_v1_0.h"
#include "mmhub_v1_0.h"
+#include "gfxhub_v1_1.h"
#include "ivsrcid/vmc/irqsrcs_vmc_1_0.h"
@@ -985,6 +986,12 @@ static int gmc_v9_0_sw_init(void *handle)
}
adev->need_swiotlb = drm_get_max_iomem() > ((u64)1 << dma_bits);
+ if (adev->asic_type == CHIP_VEGA20) {
+ r = gfxhub_v1_1_get_xgmi_info(adev);
+ if (r)
+ return r;
+ }
+
r = gmc_v9_0_mc_init(adev);
if (r)
return r;
--
2.17.1
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