tree: git://people.freedesktop.org/~agd5f/linux.git amd-staging-drm-next-pco
head: bbab57a341c90ed6e32de8edf4e89dc5c55cddac
commit: 5c777a51926dd6bbbf82dc5bddd980a408f0f618 [299/339] drm/amdgpu/gmc9:
Adjust GART and AGP location with xgmi offset
smatch warnings:
drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c:49 gfxhub_v1_1_get_xgmi_info() warn:
should '(((amdgpu_mm_rreg(adev, (adev->reg_offset[1][0][0] + 2424), 0)) &
65535) >> 0) << 24' be a 64 bit type?
git remote add radeon-alex git://people.freedesktop.org/~agd5f/linux.git
git remote update radeon-alex
git checkout 5c777a51926dd6bbbf82dc5bddd980a408f0f618
vim +49 drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c
96073652 Alex Deucher 2018-06-19 30
96073652 Alex Deucher 2018-06-19 31 int gfxhub_v1_1_get_xgmi_info(struct
amdgpu_device *adev)
96073652 Alex Deucher 2018-06-19 32 {
96073652 Alex Deucher 2018-06-19 33 u32 xgmi_lfb_cntl = RREG32_SOC15(GC, 0,
mmMC_VM_XGMI_LFB_CNTL);
96073652 Alex Deucher 2018-06-19 34 u32 max_region =
96073652 Alex Deucher 2018-06-19 35 REG_GET_FIELD(xgmi_lfb_cntl,
MC_VM_XGMI_LFB_CNTL, PF_MAX_REGION);
96073652 Alex Deucher 2018-06-19 36
96073652 Alex Deucher 2018-06-19 37 /* PF_MAX_REGION=0 means xgmi is
disabled */
96073652 Alex Deucher 2018-06-19 38 if (max_region) {
96073652 Alex Deucher 2018-06-19 39
adev->gmc.xgmi.num_physical_nodes = max_region + 1;
96073652 Alex Deucher 2018-06-19 40 if
(adev->gmc.xgmi.num_physical_nodes > 4)
96073652 Alex Deucher 2018-06-19 41 return -EINVAL;
96073652 Alex Deucher 2018-06-19 42
96073652 Alex Deucher 2018-06-19 43 adev->gmc.xgmi.physical_node_id
=
96073652 Alex Deucher 2018-06-19 44
REG_GET_FIELD(xgmi_lfb_cntl, MC_VM_XGMI_LFB_CNTL, PF_LFB_REGION);
96073652 Alex Deucher 2018-06-19 45 if
(adev->gmc.xgmi.physical_node_id > 3)
96073652 Alex Deucher 2018-06-19 46 return -EINVAL;
5c777a51 Alex Deucher 2018-06-19 47
adev->gmc.xgmi.node_segment_size = REG_GET_FIELD(
5c777a51 Alex Deucher 2018-06-19 48 RREG32_SOC15(GC, 0,
mmMC_VM_XGMI_LFB_SIZE),
5c777a51 Alex Deucher 2018-06-19 @49 MC_VM_XGMI_LFB_SIZE,
PF_LFB_SIZE) << 24;
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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