diff options
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c | 563 |
1 files changed, 563 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c new file mode 100644 index 000000000000..5fb98aa2e719 --- /dev/null +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c @@ -0,0 +1,563 @@ +/* + * Copyright 2015 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 "linux/delay.h" +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include "cgs_common.h" +#include "power_state.h" +#include "hwmgr.h" +#include "pppcielanes.h" +#include "pp_debug.h" +#include "ppatomctrl.h" + +extern int cz_hwmgr_init(struct pp_hwmgr *hwmgr); +extern int tonga_hwmgr_init(struct pp_hwmgr *hwmgr); +extern int fiji_hwmgr_init(struct pp_hwmgr *hwmgr); + +int hwmgr_init(struct amd_pp_init *pp_init, struct pp_instance *handle) +{ + struct pp_hwmgr *hwmgr; + + if ((handle == NULL) || (pp_init == NULL)) + return -EINVAL; + + hwmgr = kzalloc(sizeof(struct pp_hwmgr), GFP_KERNEL); + if (hwmgr == NULL) + return -ENOMEM; + + handle->hwmgr = hwmgr; + hwmgr->smumgr = handle->smu_mgr; + hwmgr->device = pp_init->device; + hwmgr->chip_family = pp_init->chip_family; + hwmgr->chip_id = pp_init->chip_id; + hwmgr->hw_revision = pp_init->rev_id; + hwmgr->usec_timeout = AMD_MAX_USEC_TIMEOUT; + hwmgr->power_source = PP_PowerSource_AC; + + switch (hwmgr->chip_family) { + case AMD_FAMILY_CZ: + cz_hwmgr_init(hwmgr); + break; + case AMD_FAMILY_VI: + switch (hwmgr->chip_id) { + case CHIP_TONGA: + tonga_hwmgr_init(hwmgr); + break; + case CHIP_FIJI: + fiji_hwmgr_init(hwmgr); + break; + default: + return -EINVAL; + } + break; + default: + return -EINVAL; + } + + phm_init_dynamic_caps(hwmgr); + + return 0; +} + +int hwmgr_fini(struct pp_hwmgr *hwmgr) +{ + if (hwmgr == NULL || hwmgr->ps == NULL) + return -EINVAL; + + kfree(hwmgr->ps); + kfree(hwmgr); + return 0; +} + +int hw_init_power_state_table(struct pp_hwmgr *hwmgr) +{ + int result; + unsigned int i; + unsigned int table_entries; + struct pp_power_state *state; + int size; + + if (hwmgr->hwmgr_func->get_num_of_pp_table_entries == NULL) + return -EINVAL; + + if (hwmgr->hwmgr_func->get_power_state_size == NULL) + return -EINVAL; + + hwmgr->num_ps = table_entries = hwmgr->hwmgr_func->get_num_of_pp_table_entries(hwmgr); + + hwmgr->ps_size = size = hwmgr->hwmgr_func->get_power_state_size(hwmgr) + + sizeof(struct pp_power_state); + + hwmgr->ps = kzalloc(size * table_entries, GFP_KERNEL); + + if (hwmgr->ps == NULL) + return -ENOMEM; + + state = hwmgr->ps; + + for (i = 0; i < table_entries; i++) { + result = hwmgr->hwmgr_func->get_pp_table_entry(hwmgr, i, state); + + if (state->classification.flags & PP_StateClassificationFlag_Boot) { + hwmgr->boot_ps = state; + hwmgr->current_ps = hwmgr->request_ps = state; + } + + state->id = i + 1; /* assigned unique num for every power state id */ + + if (state->classification.flags & PP_StateClassificationFlag_Uvd) + hwmgr->uvd_ps = state; + state = (struct pp_power_state *)((unsigned long)state + size); + } + + return 0; +} + + +/** + * Returns once the part of the register indicated by the mask has + * reached the given value. + */ +int phm_wait_on_register(struct pp_hwmgr *hwmgr, uint32_t index, + uint32_t value, uint32_t mask) +{ + uint32_t i; + uint32_t cur_value; + + if (hwmgr == NULL || hwmgr->device == NULL) { + printk(KERN_ERR "[ powerplay ] Invalid Hardware Manager!"); + return -EINVAL; + } + + for (i = 0; i < hwmgr->usec_timeout; i++) { + cur_value = cgs_read_register(hwmgr->device, index); + if ((cur_value & mask) == (value & mask)) + break; + udelay(1); + } + + /* timeout means wrong logic*/ + if (i == hwmgr->usec_timeout) + return -1; + return 0; +} + +int phm_wait_for_register_unequal(struct pp_hwmgr *hwmgr, + uint32_t index, uint32_t value, uint32_t mask) +{ + uint32_t i; + uint32_t cur_value; + + if (hwmgr == NULL || hwmgr->device == NULL) { + printk(KERN_ERR "[ powerplay ] Invalid Hardware Manager!"); + return -EINVAL; + } + + for (i = 0; i < hwmgr->usec_timeout; i++) { + cur_value = cgs_read_register(hwmgr->device, index); + if ((cur_value & mask) != (value & mask)) + break; + udelay(1); + } + + /* timeout means wrong logic*/ + if (i == hwmgr->usec_timeout) + return -1; + return 0; +} + + +/** + * Returns once the part of the register indicated by the mask has + * reached the given value.The indirect space is described by giving + * the memory-mapped index of the indirect index register. + */ +void phm_wait_on_indirect_register(struct pp_hwmgr *hwmgr, + uint32_t indirect_port, + uint32_t index, + uint32_t value, + uint32_t mask) +{ + if (hwmgr == NULL || hwmgr->device == NULL) { + printk(KERN_ERR "[ powerplay ] Invalid Hardware Manager!"); + return; + } + + cgs_write_register(hwmgr->device, indirect_port, index); + phm_wait_on_register(hwmgr, indirect_port + 1, mask, value); +} + +void phm_wait_for_indirect_register_unequal(struct pp_hwmgr *hwmgr, + uint32_t indirect_port, + uint32_t index, + uint32_t value, + uint32_t mask) +{ + if (hwmgr == NULL || hwmgr->device == NULL) { + printk(KERN_ERR "[ powerplay ] Invalid Hardware Manager!"); + return; + } + + cgs_write_register(hwmgr->device, indirect_port, index); + phm_wait_for_register_unequal(hwmgr, indirect_port + 1, + value, mask); +} + +bool phm_cf_want_uvd_power_gating(struct pp_hwmgr *hwmgr) +{ + return phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_UVDPowerGating); +} + +bool phm_cf_want_vce_power_gating(struct pp_hwmgr *hwmgr) +{ + return phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_VCEPowerGating); +} + + +int phm_trim_voltage_table(struct pp_atomctrl_voltage_table *vol_table) +{ + uint32_t i, j; + uint16_t vvalue; + bool found = false; + struct pp_atomctrl_voltage_table *table; + + PP_ASSERT_WITH_CODE((NULL != vol_table), + "Voltage Table empty.", return -EINVAL); + + table = kzalloc(sizeof(struct pp_atomctrl_voltage_table), + GFP_KERNEL); + + if (NULL == table) + return -EINVAL; + + table->mask_low = vol_table->mask_low; + table->phase_delay = vol_table->phase_delay; + + for (i = 0; i < vol_table->count; i++) { + vvalue = vol_table->entries[i].value; + found = false; + + for (j = 0; j < table->count; j++) { + if (vvalue == table->entries[j].value) { + found = true; + break; + } + } + + if (!found) { + table->entries[table->count].value = vvalue; + table->entries[table->count].smio_low = + vol_table->entries[i].smio_low; + table->count++; + } + } + + memcpy(vol_table, table, sizeof(struct pp_atomctrl_voltage_table)); + kfree(table); + + return 0; +} + +int phm_get_svi2_mvdd_voltage_table(struct pp_atomctrl_voltage_table *vol_table, + phm_ppt_v1_clock_voltage_dependency_table *dep_table) +{ + uint32_t i; + int result; + + PP_ASSERT_WITH_CODE((0 != dep_table->count), + "Voltage Dependency Table empty.", return -EINVAL); + + PP_ASSERT_WITH_CODE((NULL != vol_table), + "vol_table empty.", return -EINVAL); + + vol_table->mask_low = 0; + vol_table->phase_delay = 0; + vol_table->count = dep_table->count; + + for (i = 0; i < dep_table->count; i++) { + vol_table->entries[i].value = dep_table->entries[i].mvdd; + vol_table->entries[i].smio_low = 0; + } + + result = phm_trim_voltage_table(vol_table); + PP_ASSERT_WITH_CODE((0 == result), + "Failed to trim MVDD table.", return result); + + return 0; +} + +int phm_get_svi2_vddci_voltage_table(struct pp_atomctrl_voltage_table *vol_table, + phm_ppt_v1_clock_voltage_dependency_table *dep_table) +{ + uint32_t i; + int result; + + PP_ASSERT_WITH_CODE((0 != dep_table->count), + "Voltage Dependency Table empty.", return -EINVAL); + + PP_ASSERT_WITH_CODE((NULL != vol_table), + "vol_table empty.", return -EINVAL); + + vol_table->mask_low = 0; + vol_table->phase_delay = 0; + vol_table->count = dep_table->count; + + for (i = 0; i < dep_table->count; i++) { + vol_table->entries[i].value = dep_table->entries[i].vddci; + vol_table->entries[i].smio_low = 0; + } + + result = phm_trim_voltage_table(vol_table); + PP_ASSERT_WITH_CODE((0 == result), + "Failed to trim VDDCI table.", return result); + + return 0; +} + +int phm_get_svi2_vdd_voltage_table(struct pp_atomctrl_voltage_table *vol_table, + phm_ppt_v1_voltage_lookup_table *lookup_table) +{ + int i = 0; + + PP_ASSERT_WITH_CODE((0 != lookup_table->count), + "Voltage Lookup Table empty.", return -EINVAL); + + PP_ASSERT_WITH_CODE((NULL != vol_table), + "vol_table empty.", return -EINVAL); + + vol_table->mask_low = 0; + vol_table->phase_delay = 0; + + vol_table->count = lookup_table->count; + + for (i = 0; i < vol_table->count; i++) { + vol_table->entries[i].value = lookup_table->entries[i].us_vdd; + vol_table->entries[i].smio_low = 0; + } + + return 0; +} + +void phm_trim_voltage_table_to_fit_state_table(uint32_t max_vol_steps, + struct pp_atomctrl_voltage_table *vol_table) +{ + unsigned int i, diff; + + if (vol_table->count <= max_vol_steps) + return; + + diff = vol_table->count - max_vol_steps; + + for (i = 0; i < max_vol_steps; i++) + vol_table->entries[i] = vol_table->entries[i + diff]; + + vol_table->count = max_vol_steps; + + return; +} + +int phm_reset_single_dpm_table(void *table, + uint32_t count, int max) +{ + int i; + + struct vi_dpm_table *dpm_table = (struct vi_dpm_table *)table; + + PP_ASSERT_WITH_CODE(count <= max, + "Fatal error, can not set up single DPM table entries to exceed max number!", + ); + + dpm_table->count = count; + for (i = 0; i < max; i++) + dpm_table->dpm_level[i].enabled = false; + + return 0; +} + +void phm_setup_pcie_table_entry( + void *table, + uint32_t index, uint32_t pcie_gen, + uint32_t pcie_lanes) +{ + struct vi_dpm_table *dpm_table = (struct vi_dpm_table *)table; + dpm_table->dpm_level[index].value = pcie_gen; + dpm_table->dpm_level[index].param1 = pcie_lanes; + dpm_table->dpm_level[index].enabled = 1; +} + +int32_t phm_get_dpm_level_enable_mask_value(void *table) +{ + int32_t i; + int32_t mask = 0; + struct vi_dpm_table *dpm_table = (struct vi_dpm_table *)table; + + for (i = dpm_table->count; i > 0; i--) { + mask = mask << 1; + if (dpm_table->dpm_level[i - 1].enabled) + mask |= 0x1; + else + mask &= 0xFFFFFFFE; + } + + return mask; +} + +uint8_t phm_get_voltage_index( + struct phm_ppt_v1_voltage_lookup_table *lookup_table, uint16_t voltage) +{ + uint8_t count = (uint8_t) (lookup_table->count); + uint8_t i; + + PP_ASSERT_WITH_CODE((NULL != lookup_table), + "Lookup Table empty.", return 0); + PP_ASSERT_WITH_CODE((0 != count), + "Lookup Table empty.", return 0); + + for (i = 0; i < lookup_table->count; i++) { + /* find first voltage equal or bigger than requested */ + if (lookup_table->entries[i].us_vdd >= voltage) + return i; + } + /* voltage is bigger than max voltage in the table */ + return i - 1; +} + +uint16_t phm_find_closest_vddci(struct pp_atomctrl_voltage_table *vddci_table, uint16_t vddci) +{ + uint32_t i; + + for (i = 0; i < vddci_table->count; i++) { + if (vddci_table->entries[i].value >= vddci) + return vddci_table->entries[i].value; + } + + PP_ASSERT_WITH_CODE(false, + "VDDCI is larger than max VDDCI in VDDCI Voltage Table!", + return vddci_table->entries[i].value); +} + +int phm_find_boot_level(void *table, + uint32_t value, uint32_t *boot_level) +{ + int result = -EINVAL; + uint32_t i; + struct vi_dpm_table *dpm_table = (struct vi_dpm_table *)table; + + for (i = 0; i < dpm_table->count; i++) { + if (value == dpm_table->dpm_level[i].value) { + *boot_level = i; + result = 0; + } + } + + return result; +} + +int phm_get_sclk_for_voltage_evv(struct pp_hwmgr *hwmgr, + phm_ppt_v1_voltage_lookup_table *lookup_table, + uint16_t virtual_voltage_id, int32_t *sclk) +{ + uint8_t entryId; + uint8_t voltageId; + struct phm_ppt_v1_information *table_info = + (struct phm_ppt_v1_information *)(hwmgr->pptable); + + PP_ASSERT_WITH_CODE(lookup_table->count != 0, "Lookup table is empty", return -EINVAL); + + /* search for leakage voltage ID 0xff01 ~ 0xff08 and sckl */ + for (entryId = 0; entryId < table_info->vdd_dep_on_sclk->count; entryId++) { + voltageId = table_info->vdd_dep_on_sclk->entries[entryId].vddInd; + if (lookup_table->entries[voltageId].us_vdd == virtual_voltage_id) + break; + } + + PP_ASSERT_WITH_CODE(entryId < table_info->vdd_dep_on_sclk->count, + "Can't find requested voltage id in vdd_dep_on_sclk table!", + return -EINVAL; + ); + + *sclk = table_info->vdd_dep_on_sclk->entries[entryId].clk; + + return 0; +} + +/** + * Initialize Dynamic State Adjustment Rule Settings + * + * @param hwmgr the address of the powerplay hardware manager. + */ +int phm_initializa_dynamic_state_adjustment_rule_settings(struct pp_hwmgr *hwmgr) +{ + uint32_t table_size; + struct phm_clock_voltage_dependency_table *table_clk_vlt; + struct phm_ppt_v1_information *pptable_info = (struct phm_ppt_v1_information *)(hwmgr->pptable); + + /* initialize vddc_dep_on_dal_pwrl table */ + table_size = sizeof(uint32_t) + 4 * sizeof(struct phm_clock_voltage_dependency_record); + table_clk_vlt = (struct phm_clock_voltage_dependency_table *)kzalloc(table_size, GFP_KERNEL); + + if (NULL == table_clk_vlt) { + printk(KERN_ERR "[ powerplay ] Can not allocate space for vddc_dep_on_dal_pwrl! \n"); + return -ENOMEM; + } else { + table_clk_vlt->count = 4; + table_clk_vlt->entries[0].clk = PP_DAL_POWERLEVEL_ULTRALOW; + table_clk_vlt->entries[0].v = 0; + table_clk_vlt->entries[1].clk = PP_DAL_POWERLEVEL_LOW; + table_clk_vlt->entries[1].v = 720; + table_clk_vlt->entries[2].clk = PP_DAL_POWERLEVEL_NOMINAL; + table_clk_vlt->entries[2].v = 810; + table_clk_vlt->entries[3].clk = PP_DAL_POWERLEVEL_PERFORMANCE; + table_clk_vlt->entries[3].v = 900; + pptable_info->vddc_dep_on_dal_pwrl = table_clk_vlt; + hwmgr->dyn_state.vddc_dep_on_dal_pwrl = table_clk_vlt; + } + + return 0; +} + +int phm_hwmgr_backend_fini(struct pp_hwmgr *hwmgr) +{ + if (NULL != hwmgr->dyn_state.vddc_dep_on_dal_pwrl) { + kfree(hwmgr->dyn_state.vddc_dep_on_dal_pwrl); + hwmgr->dyn_state.vddc_dep_on_dal_pwrl = NULL; + } + + if (NULL != hwmgr->backend) { + kfree(hwmgr->backend); + hwmgr->backend = NULL; + } + + return 0; +} + +uint32_t phm_get_lowest_enabled_level(struct pp_hwmgr *hwmgr, uint32_t mask) +{ + uint32_t level = 0; + + while (0 == (mask & (1 << level))) + level++; + + return level; +} |