/* * 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 "df_v3_6.h" #include "df/df_3_6_default.h" #include "df/df_3_6_offset.h" #include "df/df_3_6_sh_mask.h" #define DF_3_6_SMN_REG_INST_DIST 0x8 #define DF_3_6_INST_CNT 8 /* Defined in global_features.h as FTI_PERFMON_VISIBLE */ #define DF_V3_6_MAX_COUNTERS 4 /* get flags from df perfmon config */ #define DF_V3_6_GET_EVENT(x) (x & 0xFFUL) #define DF_V3_6_GET_INSTANCE(x) ((x >> 8) & 0xFFUL) #define DF_V3_6_GET_UNITMASK(x) ((x >> 16) & 0xFFUL) #define DF_V3_6_PERFMON_OVERFLOW 0xFFFFFFFFFFFFULL static u32 df_v3_6_channel_number[] = {1, 2, 0, 4, 0, 8, 0, 16, 32, 0, 0, 0, 2, 4, 8}; static uint64_t df_v3_6_get_fica(struct amdgpu_device *adev, uint32_t ficaa_val) { unsigned long flags, address, data; uint32_t ficadl_val, ficadh_val; address = adev->nbio.funcs->get_pcie_index_offset(adev); data = adev->nbio.funcs->get_pcie_data_offset(adev); spin_lock_irqsave(&adev->pcie_idx_lock, flags); WREG32(address, smnDF_PIE_AON_FabricIndirectConfigAccessAddress3); WREG32(data, ficaa_val); WREG32(address, smnDF_PIE_AON_FabricIndirectConfigAccessDataLo3); ficadl_val = RREG32(data); WREG32(address, smnDF_PIE_AON_FabricIndirectConfigAccessDataHi3); ficadh_val = RREG32(data); spin_unlock_irqrestore(&adev->pcie_idx_lock, flags); return (((ficadh_val & 0xFFFFFFFFFFFFFFFF) << 32) | ficadl_val); } static void df_v3_6_set_fica(struct amdgpu_device *adev, uint32_t ficaa_val, uint32_t ficadl_val, uint32_t ficadh_val) { unsigned long flags, address, data; address = adev->nbio.funcs->get_pcie_index_offset(adev); data = adev->nbio.funcs->get_pcie_data_offset(adev); spin_lock_irqsave(&adev->pcie_idx_lock, flags); WREG32(address, smnDF_PIE_AON_FabricIndirectConfigAccessAddress3); WREG32(data, ficaa_val); WREG32(address, smnDF_PIE_AON_FabricIndirectConfigAccessDataLo3); WREG32(data, ficadl_val); WREG32(address, smnDF_PIE_AON_FabricIndirectConfigAccessDataHi3); WREG32(data, ficadh_val); spin_unlock_irqrestore(&adev->pcie_idx_lock, flags); } /* * df_v3_6_perfmon_rreg - read perfmon lo and hi * * required to be atomic. no mmio method provided so subsequent reads for lo * and hi require to preserve df finite state machine */ static void df_v3_6_perfmon_rreg(struct amdgpu_device *adev, uint32_t lo_addr, uint32_t *lo_val, uint32_t hi_addr, uint32_t *hi_val) { unsigned long flags, address, data; address = adev->nbio.funcs->get_pcie_index_offset(adev); data = adev->nbio.funcs->get_pcie_data_offset(adev); spin_lock_irqsave(&adev->pcie_idx_lock, flags); WREG32(address, lo_addr); *lo_val = RREG32(data); WREG32(address, hi_addr); *hi_val = RREG32(data); spin_unlock_irqrestore(&adev->pcie_idx_lock, flags); } /* * df_v3_6_perfmon_wreg - write to perfmon lo and hi * * required to be atomic. no mmio method provided so subsequent reads after * data writes cannot occur to preserve data fabrics finite state machine. */ static void df_v3_6_perfmon_wreg(struct amdgpu_device *adev, uint32_t lo_addr, uint32_t lo_val, uint32_t hi_addr, uint32_t hi_val) { unsigned long flags, address, data; address = adev->nbio.funcs->get_pcie_index_offset(adev); data = adev->nbio.funcs->get_pcie_data_offset(adev); spin_lock_irqsave(&adev->pcie_idx_lock, flags); WREG32(address, lo_addr); WREG32(data, lo_val); WREG32(address, hi_addr); WREG32(data, hi_val); spin_unlock_irqrestore(&adev->pcie_idx_lock, flags); } /* same as perfmon_wreg but return status on write value check */ static int df_v3_6_perfmon_arm_with_status(struct amdgpu_device *adev, uint32_t lo_addr, uint32_t lo_val, uint32_t hi_addr, uint32_t hi_val) { unsigned long flags, address, data; uint32_t lo_val_rb, hi_val_rb; address = adev->nbio.funcs->get_pcie_index_offset(adev); data = adev->nbio.funcs->get_pcie_data_offset(adev); spin_lock_irqsave(&adev->pcie_idx_lock, flags); WREG32(address, lo_addr); WREG32(data, lo_val); WREG32(address, hi_addr); WREG32(data, hi_val); WREG32(address, lo_addr); lo_val_rb = RREG32(data); WREG32(address, hi_addr); hi_val_rb = RREG32(data); spin_unlock_irqrestore(&adev->pcie_idx_lock, flags); if (!(lo_val == lo_val_rb && hi_val == hi_val_rb)) return -EBUSY; return 0; } /* * retry arming counters every 100 usecs within 1 millisecond interval. * if retry fails after time out, return error. */ #define ARM_RETRY_USEC_TIMEOUT 1000 #define ARM_RETRY_USEC_INTERVAL 100 static int df_v3_6_perfmon_arm_with_retry(struct amdgpu_device *adev, uint32_t lo_addr, uint32_t lo_val, uint32_t hi_addr, uint32_t hi_val) { int countdown = ARM_RETRY_USEC_TIMEOUT; while (countdown) { if (!df_v3_6_perfmon_arm_with_status(adev, lo_addr, lo_val, hi_addr, hi_val)) break; countdown -= ARM_RETRY_USEC_INTERVAL; udelay(ARM_RETRY_USEC_INTERVAL); } return countdown > 0 ? 0 : -ETIME; } /* get the number of df counters available */ static ssize_t df_v3_6_get_df_cntr_avail(struct device *dev, struct device_attribute *attr, char *buf) { struct amdgpu_device *adev; struct drm_device *ddev; int i, count; ddev = dev_get_drvdata(dev); adev = drm_to_adev(ddev); count = 0; for (i = 0; i < DF_V3_6_MAX_COUNTERS; i++) { if (adev->df_perfmon_config_assign_mask[i] == 0) count++; } return sysfs_emit(buf, "%i\n", count); } /* device attr for available perfmon counters */ static DEVICE_ATTR(df_cntr_avail, S_IRUGO, df_v3_6_get_df_cntr_avail, NULL); static void df_v3_6_query_hashes(struct amdgpu_device *adev) { u32 tmp; adev->df.hash_status.hash_64k = false; adev->df.hash_status.hash_2m = false; adev->df.hash_status.hash_1g = false; if (adev->asic_type != CHIP_ARCTURUS) return; /* encoding for hash-enabled on Arcturus */ if (adev->df.funcs->get_fb_channel_number(adev) == 0xe) { tmp = RREG32_SOC15(DF, 0, mmDF_CS_UMC_AON0_DfGlobalCtrl); adev->df.hash_status.hash_64k = REG_GET_FIELD(tmp, DF_CS_UMC_AON0_DfGlobalCtrl, GlbHashIntlvCtl64K); adev->df.hash_status.hash_2m = REG_GET_FIELD(tmp, DF_CS_UMC_AON0_DfGlobalCtrl, GlbHashIntlvCtl2M); adev->df.hash_status.hash_1g = REG_GET_FIELD(tmp, DF_CS_UMC_AON0_DfGlobalCtrl, GlbHashIntlvCtl1G); } } /* init perfmons */ static void df_v3_6_sw_init(struct amdgpu_device *adev) { int i, ret; ret = device_create_file(adev->dev, &dev_attr_df_cntr_avail); if (ret) DRM_ERROR("failed to create file for available df counters\n"); for (i = 0; i < AMDGPU_MAX_DF_PERFMONS; i++) adev->df_perfmon_config_assign_mask[i] = 0; df_v3_6_query_hashes(adev); } static void df_v3_6_sw_fini(struct amdgpu_device *adev) { device_remove_file(adev->dev, &dev_attr_df_cntr_avail); } static void df_v3_6_enable_broadcast_mode(struct amdgpu_device *adev, bool enable) { u32 tmp; if (enable) { tmp = RREG32_SOC15(DF, 0, mmFabricConfigAccessControl); tmp &= ~FabricConfigAccessControl__CfgRegInstAccEn_MASK; WREG32_SOC15(DF, 0, mmFabricConfigAccessControl, tmp); } else WREG32_SOC15(DF, 0, mmFabricConfigAccessControl, mmFabricConfigAccessControl_DEFAULT); } static u32 df_v3_6_get_fb_channel_number(struct amdgpu_device *adev) { u32 tmp; tmp = RREG32_SOC15(DF, 0, mmDF_CS_UMC_AON0_DramBaseAddress0); tmp &= DF_CS_UMC_AON0_DramBaseAddress0__IntLvNumChan_MASK; tmp >>= DF_CS_UMC_AON0_DramBaseAddress0__IntLvNumChan__SHIFT; return tmp; } static u32 df_v3_6_get_hbm_channel_number(struct amdgpu_device *adev) { int fb_channel_number; fb_channel_number = adev->df.funcs->get_fb_channel_number(adev); if (fb_channel_number >= ARRAY_SIZE(df_v3_6_channel_number)) fb_channel_number = 0; return df_v3_6_channel_number[fb_channel_number]; } static void df_v3_6_update_medium_grain_clock_gating(struct amdgpu_device *adev, bool enable) { u32 tmp; if (adev->cg_flags & AMD_CG_SUPPORT_DF_MGCG) { /* Put DF on broadcast mode */ adev->df.funcs->enable_broadcast_mode(adev, true); if (enable) { tmp = RREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater); tmp &= ~DF_PIE_AON0_DfGlobalClkGater__MGCGMode_MASK; tmp |= DF_V3_6_MGCG_ENABLE_15_CYCLE_DELAY; WREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater, tmp); } else { tmp = RREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater); tmp &= ~DF_PIE_AON0_DfGlobalClkGater__MGCGMode_MASK; tmp |= DF_V3_6_MGCG_DISABLE; WREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater, tmp); } /* Exit broadcast mode */ adev->df.funcs->enable_broadcast_mode(adev, false); } } static void df_v3_6_get_clockgating_state(struct amdgpu_device *adev, u32 *flags) { u32 tmp; /* AMD_CG_SUPPORT_DF_MGCG */ tmp = RREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater); if (tmp & DF_V3_6_MGCG_ENABLE_15_CYCLE_DELAY) *flags |= AMD_CG_SUPPORT_DF_MGCG; } /* get assigned df perfmon ctr as int */ static bool df_v3_6_pmc_has_counter(struct amdgpu_device *adev, uint64_t config, int counter_idx) { return ((config & 0x0FFFFFFUL) == adev->df_perfmon_config_assign_mask[counter_idx]); } /* get address based on counter assignment */ static void df_v3_6_pmc_get_addr(struct amdgpu_device *adev, uint64_t config, int counter_idx, int is_ctrl, uint32_t *lo_base_addr, uint32_t *hi_base_addr) { if (!df_v3_6_pmc_has_counter(adev, config, counter_idx)) return; switch (counter_idx) { case 0: *lo_base_addr = is_ctrl ? smnPerfMonCtlLo4 : smnPerfMonCtrLo4; *hi_base_addr = is_ctrl ? smnPerfMonCtlHi4 : smnPerfMonCtrHi4; break; case 1: *lo_base_addr = is_ctrl ? smnPerfMonCtlLo5 : smnPerfMonCtrLo5; *hi_base_addr = is_ctrl ? smnPerfMonCtlHi5 : smnPerfMonCtrHi5; break; case 2: *lo_base_addr = is_ctrl ? smnPerfMonCtlLo6 : smnPerfMonCtrLo6; *hi_base_addr = is_ctrl ? smnPerfMonCtlHi6 : smnPerfMonCtrHi6; break; case 3: *lo_base_addr = is_ctrl ? smnPerfMonCtlLo7 : smnPerfMonCtrLo7; *hi_base_addr = is_ctrl ? smnPerfMonCtlHi7 : smnPerfMonCtrHi7; break; } } /* get read counter address */ static void df_v3_6_pmc_get_read_settings(struct amdgpu_device *adev, uint64_t config, int counter_idx, uint32_t *lo_base_addr, uint32_t *hi_base_addr) { df_v3_6_pmc_get_addr(adev, config, counter_idx, 0, lo_base_addr, hi_base_addr); } /* get control counter settings i.e. address and values to set */ static int df_v3_6_pmc_get_ctrl_settings(struct amdgpu_device *adev, uint64_t config, int counter_idx, uint32_t *lo_base_addr, uint32_t *hi_base_addr, uint32_t *lo_val, uint32_t *hi_val, bool is_enable) { uint32_t eventsel, instance, unitmask; uint32_t instance_10, instance_5432, instance_76; df_v3_6_pmc_get_addr(adev, config, counter_idx, 1, lo_base_addr, hi_base_addr); if ((*lo_base_addr == 0) || (*hi_base_addr == 0)) { DRM_ERROR("[DF PMC] addressing not retrieved! Lo: %x, Hi: %x", *lo_base_addr, *hi_base_addr); return -ENXIO; } eventsel = DF_V3_6_GET_EVENT(config) & 0x3f; unitmask = DF_V3_6_GET_UNITMASK(config) & 0xf; instance = DF_V3_6_GET_INSTANCE(config); instance_10 = instance & 0x3; instance_5432 = (instance >> 2) & 0xf; instance_76 = (instance >> 6) & 0x3; *lo_val = (unitmask << 8) | (instance_10 << 6) | eventsel; *lo_val = is_enable ? *lo_val | (1 << 22) : *lo_val & ~(1 << 22); *hi_val = (instance_76 << 29) | instance_5432; DRM_DEBUG_DRIVER("config=%llx addr=%08x:%08x val=%08x:%08x", config, *lo_base_addr, *hi_base_addr, *lo_val, *hi_val); return 0; } /* add df performance counters for read */ static int df_v3_6_pmc_add_cntr(struct amdgpu_device *adev, uint64_t config) { int i; for (i = 0; i < DF_V3_6_MAX_COUNTERS; i++) { if (adev->df_perfmon_config_assign_mask[i] == 0U) { adev->df_perfmon_config_assign_mask[i] = config & 0x0FFFFFFUL; return i; } } return -ENOSPC; } #define DEFERRED_ARM_MASK (1 << 31) static int df_v3_6_pmc_set_deferred(struct amdgpu_device *adev, int counter_idx, uint64_t config, bool is_deferred) { if (!df_v3_6_pmc_has_counter(adev, config, counter_idx)) return -EINVAL; if (is_deferred) adev->df_perfmon_config_assign_mask[counter_idx] |= DEFERRED_ARM_MASK; else adev->df_perfmon_config_assign_mask[counter_idx] &= ~DEFERRED_ARM_MASK; return 0; } static bool df_v3_6_pmc_is_deferred(struct amdgpu_device *adev, int counter_idx, uint64_t config) { return (df_v3_6_pmc_has_counter(adev, config, counter_idx) && (adev->df_perfmon_config_assign_mask[counter_idx] & DEFERRED_ARM_MASK)); } /* release performance counter */ static void df_v3_6_pmc_release_cntr(struct amdgpu_device *adev, uint64_t config, int counter_idx) { if (df_v3_6_pmc_has_counter(adev, config, counter_idx)) adev->df_perfmon_config_assign_mask[counter_idx] = 0ULL; } static void df_v3_6_reset_perfmon_cntr(struct amdgpu_device *adev, uint64_t config, int counter_idx) { uint32_t lo_base_addr = 0, hi_base_addr = 0; df_v3_6_pmc_get_read_settings(adev, config, counter_idx, &lo_base_addr, &hi_base_addr); if ((lo_base_addr == 0) || (hi_base_addr == 0)) return; df_v3_6_perfmon_wreg(adev, lo_base_addr, 0, hi_base_addr, 0); } /* return available counter if is_add == 1 otherwise return error status. */ static int df_v3_6_pmc_start(struct amdgpu_device *adev, uint64_t config, int counter_idx, int is_add) { uint32_t lo_base_addr, hi_base_addr, lo_val, hi_val; int err = 0, ret = 0; switch (adev->asic_type) { case CHIP_VEGA20: case CHIP_ARCTURUS: if (is_add) return df_v3_6_pmc_add_cntr(adev, config); ret = df_v3_6_pmc_get_ctrl_settings(adev, config, counter_idx, &lo_base_addr, &hi_base_addr, &lo_val, &hi_val, true); if (ret) return ret; err = df_v3_6_perfmon_arm_with_retry(adev, lo_base_addr, lo_val, hi_base_addr, hi_val); if (err) ret = df_v3_6_pmc_set_deferred(adev, config, counter_idx, true); break; default: break; } return ret; } static int df_v3_6_pmc_stop(struct amdgpu_device *adev, uint64_t config, int counter_idx, int is_remove) { uint32_t lo_base_addr, hi_base_addr, lo_val, hi_val; int ret = 0; switch (adev->asic_type) { case CHIP_VEGA20: case CHIP_ARCTURUS: ret = df_v3_6_pmc_get_ctrl_settings(adev, config, counter_idx, &lo_base_addr, &hi_base_addr, &lo_val, &hi_val, false); if (ret) return ret; df_v3_6_perfmon_wreg(adev, lo_base_addr, lo_val, hi_base_addr, hi_val); if (is_remove) { df_v3_6_reset_perfmon_cntr(adev, config, counter_idx); df_v3_6_pmc_release_cntr(adev, config, counter_idx); } break; default: break; } return ret; } static void df_v3_6_pmc_get_count(struct amdgpu_device *adev, uint64_t config, int counter_idx, uint64_t *count) { uint32_t lo_base_addr = 0, hi_base_addr = 0, lo_val = 0, hi_val = 0; *count = 0; switch (adev->asic_type) { case CHIP_VEGA20: case CHIP_ARCTURUS: df_v3_6_pmc_get_read_settings(adev, config, counter_idx, &lo_base_addr, &hi_base_addr); if ((lo_base_addr == 0) || (hi_base_addr == 0)) return; /* rearm the counter or throw away count value on failure */ if (df_v3_6_pmc_is_deferred(adev, config, counter_idx)) { int rearm_err = df_v3_6_perfmon_arm_with_status(adev, lo_base_addr, lo_val, hi_base_addr, hi_val); if (rearm_err) return; df_v3_6_pmc_set_deferred(adev, config, counter_idx, false); } df_v3_6_perfmon_rreg(adev, lo_base_addr, &lo_val, hi_base_addr, &hi_val); *count = ((hi_val | 0ULL) << 32) | (lo_val | 0ULL); if (*count >= DF_V3_6_PERFMON_OVERFLOW) *count = 0; DRM_DEBUG_DRIVER("config=%llx addr=%08x:%08x val=%08x:%08x", config, lo_base_addr, hi_base_addr, lo_val, hi_val); break; default: break; } } const struct amdgpu_df_funcs df_v3_6_funcs = { .sw_init = df_v3_6_sw_init, .sw_fini = df_v3_6_sw_fini, .enable_broadcast_mode = df_v3_6_enable_broadcast_mode, .get_fb_channel_number = df_v3_6_get_fb_channel_number, .get_hbm_channel_number = df_v3_6_get_hbm_channel_number, .update_medium_grain_clock_gating = df_v3_6_update_medium_grain_clock_gating, .get_clockgating_state = df_v3_6_get_clockgating_state, .pmc_start = df_v3_6_pmc_start, .pmc_stop = df_v3_6_pmc_stop, .pmc_get_count = df_v3_6_pmc_get_count, .get_fica = df_v3_6_get_fica, .set_fica = df_v3_6_set_fica, };