tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/amdgpu/athub2: enable athub2 clock gating
Enable athub2 clock gating and light sleep
Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
authored by
Jack Xiao
and committed by
Alex Deucher
367adb2a
9faa494e
+140
+4
drivers/gpu/drm/amd/amdgpu/Makefile
+4
drivers/gpu/drm/amd/amdgpu/Makefile
+3
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+3
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
···
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{AMD_CG_SUPPORT_DRM_LS, "Digital Right Management Light Sleep"},
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{AMD_CG_SUPPORT_ROM_MGCG, "Rom Medium Grain Clock Gating"},
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{AMD_CG_SUPPORT_DF_MGCG, "Data Fabric Medium Grain Clock Gating"},
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{AMD_CG_SUPPORT_ATHUB_MGCG, "Address Translation Hub Medium Grain Clock Gating"},
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{AMD_CG_SUPPORT_ATHUB_LS, "Address Translation Hub Light Sleep"},
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{0, NULL},
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};
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+101
drivers/gpu/drm/amd/amdgpu/athub_v2_0.c
+101
drivers/gpu/drm/amd/amdgpu/athub_v2_0.c
···
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/*
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* Copyright 2019 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "amdgpu.h"
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#include "athub_v2_0.h"
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#include "athub/athub_2_0_0_offset.h"
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#include "athub/athub_2_0_0_sh_mask.h"
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#include "athub/athub_2_0_0_default.h"
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#include "navi10_enum.h"
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#include "soc15_common.h"
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static void
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athub_v2_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
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bool enable)
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{
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uint32_t def, data;
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def = data = RREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL);
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if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
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data |= ATHUB_MISC_CNTL__CG_ENABLE_MASK;
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else
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data &= ~ATHUB_MISC_CNTL__CG_ENABLE_MASK;
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if (def != data)
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WREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL, data);
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}
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static void
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athub_v2_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
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bool enable)
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{
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uint32_t def, data;
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def = data = RREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL);
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if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS) &&
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(adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
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data |= ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK;
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else
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data &= ~ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK;
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if (def != data)
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WREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL, data);
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}
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int athub_v2_0_set_clockgating(struct amdgpu_device *adev,
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enum amd_clockgating_state state)
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{
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if (amdgpu_sriov_vf(adev))
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return 0;
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switch (adev->asic_type) {
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case CHIP_NAVI10:
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athub_v2_0_update_medium_grain_clock_gating(adev,
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state == AMD_CG_STATE_GATE ? true : false);
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athub_v2_0_update_medium_grain_light_sleep(adev,
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state == AMD_CG_STATE_GATE ? true : false);
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break;
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default:
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break;
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}
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return 0;
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}
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void athub_v2_0_get_clockgating(struct amdgpu_device *adev, u32 *flags)
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{
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int data;
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/* AMD_CG_SUPPORT_ATHUB_MGCG */
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data = RREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL);
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if (data & ATHUB_MISC_CNTL__CG_ENABLE_MASK)
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*flags |= AMD_CG_SUPPORT_ATHUB_MGCG;
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/* AMD_CG_SUPPORT_ATHUB_LS */
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if (data & ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK)
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*flags |= AMD_CG_SUPPORT_ATHUB_LS;
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}
+30
drivers/gpu/drm/amd/amdgpu/athub_v2_0.h
+30
drivers/gpu/drm/amd/amdgpu/athub_v2_0.h
···
1
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/*
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* Copyright 2019 Advanced Micro Devices, Inc.
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+
*
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+
* Permission is hereby granted, free of charge, to any person obtaining a
5
+
* copy of this software and associated documentation files (the "Software"),
6
+
* to deal in the Software without restriction, including without limitation
7
+
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
8
+
* and/or sell copies of the Software, and to permit persons to whom the
9
+
* Software is furnished to do so, subject to the following conditions:
10
+
*
11
+
* The above copyright notice and this permission notice shall be included in
12
+
* all copies or substantial portions of the Software.
13
+
*
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+
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15
+
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16
+
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17
+
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18
+
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19
+
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20
+
* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef __ATHUB_V2_0_H__
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#define __ATHUB_V2_0_H__
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int athub_v2_0_set_clockgating(struct amdgpu_device *adev,
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enum amd_clockgating_state state);
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void athub_v2_0_get_clockgating(struct amdgpu_device *adev, u32 *flags);
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#endif