From 9d5a19c33b9d29bed81b9c735ff61fdb73074219 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 19 Jun 2018 17:03:27 -0500 Subject: [PATCH 5393/5725] 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 Acked-by: Slava Abramov Reviewed-by :Shaoyun liu Signed-off-by: Alex Deucher Acked-by: Christian König Signed-off-by :Shaoyun liu Change-Id: Ia7b7f112880e69cdbcf73a8abf04cd6ef303940c Signed-off-by: Raveendra Talabattula --- 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 0e9fe5e..8c34388 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 0000000..d4170cb --- /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 0000000..d753cf2 --- /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 b5d849b..de699ea 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -42,6 +42,7 @@ #include "gfxhub_v1_0.h" #include "mmhub_v1_0.h" +#include "gfxhub_v1_1.h" #include "ivsrcid/vmc/irqsrcs_vmc_1_0.h" @@ -984,6 +985,12 @@ static int gmc_v9_0_sw_init(void *handle) printk(KERN_WARNING "amdgpu: No coherent DMA available.\n"); } + 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; -- 2.7.4