/* * Copyright 2020 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 "amdgpu_atombios.h" #include "hdp_v4_0.h" #include "amdgpu_ras.h" #include "hdp/hdp_4_0_offset.h" #include "hdp/hdp_4_0_sh_mask.h" #include /* for Vega20 register name change */ #define mmHDP_MEM_POWER_CTRL 0x00d4 #define HDP_MEM_POWER_CTRL__IPH_MEM_POWER_CTRL_EN_MASK 0x00000001L #define HDP_MEM_POWER_CTRL__IPH_MEM_POWER_LS_EN_MASK 0x00000002L #define HDP_MEM_POWER_CTRL__RC_MEM_POWER_CTRL_EN_MASK 0x00010000L #define HDP_MEM_POWER_CTRL__RC_MEM_POWER_LS_EN_MASK 0x00020000L #define mmHDP_MEM_POWER_CTRL_BASE_IDX 0 static void hdp_v4_0_flush_hdp(struct amdgpu_device *adev, struct amdgpu_ring *ring) { if (!ring || !ring->funcs->emit_wreg) WREG32((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0); else amdgpu_ring_emit_wreg(ring, (adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0); } static void hdp_v4_0_invalidate_hdp(struct amdgpu_device *adev, struct amdgpu_ring *ring) { if (amdgpu_ip_version(adev, HDP_HWIP, 0) == IP_VERSION(4, 4, 0) || amdgpu_ip_version(adev, HDP_HWIP, 0) == IP_VERSION(4, 4, 2) || amdgpu_ip_version(adev, HDP_HWIP, 0) == IP_VERSION(4, 4, 5)) return; if (!ring || !ring->funcs->emit_wreg) WREG32_SOC15_NO_KIQ(HDP, 0, mmHDP_READ_CACHE_INVALIDATE, 1); else amdgpu_ring_emit_wreg(ring, SOC15_REG_OFFSET( HDP, 0, mmHDP_READ_CACHE_INVALIDATE), 1); } static void hdp_v4_0_query_ras_error_count(struct amdgpu_device *adev, void *ras_error_status) { struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; err_data->ue_count = 0; err_data->ce_count = 0; if (!amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__HDP)) return; /* HDP SRAM errors are uncorrectable ones (i.e. fatal errors) */ err_data->ue_count += RREG32_SOC15(HDP, 0, mmHDP_EDC_CNT); }; static void hdp_v4_0_reset_ras_error_count(struct amdgpu_device *adev) { if (!amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__HDP)) return; if (amdgpu_ip_version(adev, HDP_HWIP, 0) >= IP_VERSION(4, 4, 0)) WREG32_SOC15(HDP, 0, mmHDP_EDC_CNT, 0); else /*read back hdp ras counter to reset it to 0 */ RREG32_SOC15(HDP, 0, mmHDP_EDC_CNT); } static void hdp_v4_0_update_clock_gating(struct amdgpu_device *adev, bool enable) { uint32_t def, data; if (amdgpu_ip_version(adev, HDP_HWIP, 0) == IP_VERSION(4, 0, 0) || amdgpu_ip_version(adev, HDP_HWIP, 0) == IP_VERSION(4, 0, 1) || amdgpu_ip_version(adev, HDP_HWIP, 0) == IP_VERSION(4, 1, 1) || amdgpu_ip_version(adev, HDP_HWIP, 0) == IP_VERSION(4, 1, 0)) { def = data = RREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MEM_POWER_LS)); if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS)) data |= HDP_MEM_POWER_LS__LS_ENABLE_MASK; else data &= ~HDP_MEM_POWER_LS__LS_ENABLE_MASK; if (def != data) WREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MEM_POWER_LS), data); } else { def = data = RREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MEM_POWER_CTRL)); if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS)) data |= HDP_MEM_POWER_CTRL__IPH_MEM_POWER_CTRL_EN_MASK | HDP_MEM_POWER_CTRL__IPH_MEM_POWER_LS_EN_MASK | HDP_MEM_POWER_CTRL__RC_MEM_POWER_CTRL_EN_MASK | HDP_MEM_POWER_CTRL__RC_MEM_POWER_LS_EN_MASK; else data &= ~(HDP_MEM_POWER_CTRL__IPH_MEM_POWER_CTRL_EN_MASK | HDP_MEM_POWER_CTRL__IPH_MEM_POWER_LS_EN_MASK | HDP_MEM_POWER_CTRL__RC_MEM_POWER_CTRL_EN_MASK | HDP_MEM_POWER_CTRL__RC_MEM_POWER_LS_EN_MASK); if (def != data) WREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MEM_POWER_CTRL), data); } } static void hdp_v4_0_get_clockgating_state(struct amdgpu_device *adev, u64 *flags) { int data; if (amdgpu_ip_version(adev, HDP_HWIP, 0) == IP_VERSION(4, 4, 2) || amdgpu_ip_version(adev, HDP_HWIP, 0) == IP_VERSION(4, 4, 5)) { /* Default enabled */ *flags |= AMD_CG_SUPPORT_HDP_MGCG; return; } /* AMD_CG_SUPPORT_HDP_LS */ data = RREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MEM_POWER_LS)); if (data & HDP_MEM_POWER_LS__LS_ENABLE_MASK) *flags |= AMD_CG_SUPPORT_HDP_LS; } static void hdp_v4_0_init_registers(struct amdgpu_device *adev) { switch (amdgpu_ip_version(adev, HDP_HWIP, 0)) { case IP_VERSION(4, 2, 1): WREG32_FIELD15(HDP, 0, HDP_MMHUB_CNTL, HDP_MMHUB_GCC, 1); break; default: break; } /* Do not program registers if VF */ if (amdgpu_sriov_vf(adev)) return; WREG32_FIELD15(HDP, 0, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 1); if (amdgpu_ip_version(adev, HDP_HWIP, 0) == IP_VERSION(4, 4, 0)) WREG32_FIELD15(HDP, 0, HDP_MISC_CNTL, READ_BUFFER_WATERMARK, 2); WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE, (adev->gmc.vram_start >> 8)); WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE_HI, (adev->gmc.vram_start >> 40)); } struct amdgpu_ras_block_hw_ops hdp_v4_0_ras_hw_ops = { .query_ras_error_count = hdp_v4_0_query_ras_error_count, .reset_ras_error_count = hdp_v4_0_reset_ras_error_count, }; struct amdgpu_hdp_ras hdp_v4_0_ras = { .ras_block = { .hw_ops = &hdp_v4_0_ras_hw_ops, }, }; const struct amdgpu_hdp_funcs hdp_v4_0_funcs = { .flush_hdp = hdp_v4_0_flush_hdp, .invalidate_hdp = hdp_v4_0_invalidate_hdp, .update_clock_gating = hdp_v4_0_update_clock_gating, .get_clock_gating_state = hdp_v4_0_get_clockgating_state, .init_registers = hdp_v4_0_init_registers, };