diff options
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c new file mode 100644 index 000000000000..063ae71c9830 --- /dev/null +++ b/drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c @@ -0,0 +1,263 @@ +/* + * 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/types.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include "pp_instance.h" +#include "smumgr.h" +#include "cgs_common.h" +#include "linux/delay.h" +#include "cz_smumgr.h" +#include "tonga_smumgr.h" +#include "fiji_smumgr.h" + +int smum_init(struct amd_pp_init *pp_init, struct pp_instance *handle) +{ + struct pp_smumgr *smumgr; + + if ((handle == NULL) || (pp_init == NULL)) + return -EINVAL; + + smumgr = kzalloc(sizeof(struct pp_smumgr), GFP_KERNEL); + if (smumgr == NULL) + return -ENOMEM; + + smumgr->device = pp_init->device; + smumgr->chip_family = pp_init->chip_family; + smumgr->chip_id = pp_init->chip_id; + smumgr->hw_revision = pp_init->rev_id; + smumgr->usec_timeout = AMD_MAX_USEC_TIMEOUT; + smumgr->reload_fw = 1; + handle->smu_mgr = smumgr; + + switch (smumgr->chip_family) { + case AMD_FAMILY_CZ: + cz_smum_init(smumgr); + break; + case AMD_FAMILY_VI: + switch (smumgr->chip_id) { + case CHIP_TONGA: + tonga_smum_init(smumgr); + break; + case CHIP_FIJI: + fiji_smum_init(smumgr); + break; + default: + return -EINVAL; + } + break; + default: + kfree(smumgr); + return -EINVAL; + } + + return 0; +} + +int smum_fini(struct pp_smumgr *smumgr) +{ + kfree(smumgr); + return 0; +} + +int smum_get_argument(struct pp_smumgr *smumgr) +{ + if (NULL != smumgr->smumgr_funcs->get_argument) + return smumgr->smumgr_funcs->get_argument(smumgr); + + return 0; +} + +int smum_download_powerplay_table(struct pp_smumgr *smumgr, + void **table) +{ + if (NULL != smumgr->smumgr_funcs->download_pptable_settings) + return smumgr->smumgr_funcs->download_pptable_settings(smumgr, + table); + + return 0; +} + +int smum_upload_powerplay_table(struct pp_smumgr *smumgr) +{ + if (NULL != smumgr->smumgr_funcs->upload_pptable_settings) + return smumgr->smumgr_funcs->upload_pptable_settings(smumgr); + + return 0; +} + +int smum_send_msg_to_smc(struct pp_smumgr *smumgr, uint16_t msg) +{ + if (smumgr == NULL || smumgr->smumgr_funcs->send_msg_to_smc == NULL) + return -EINVAL; + + return smumgr->smumgr_funcs->send_msg_to_smc(smumgr, msg); +} + +int smum_send_msg_to_smc_with_parameter(struct pp_smumgr *smumgr, + uint16_t msg, uint32_t parameter) +{ + if (smumgr == NULL || + smumgr->smumgr_funcs->send_msg_to_smc_with_parameter == NULL) + return -EINVAL; + return smumgr->smumgr_funcs->send_msg_to_smc_with_parameter( + smumgr, msg, parameter); +} + +/* + * Returns once the part of the register indicated by the mask has + * reached the given value. + */ +int smum_wait_on_register(struct pp_smumgr *smumgr, + uint32_t index, + uint32_t value, uint32_t mask) +{ + uint32_t i; + uint32_t cur_value; + + if (smumgr == NULL || smumgr->device == NULL) + return -EINVAL; + + for (i = 0; i < smumgr->usec_timeout; i++) { + cur_value = cgs_read_register(smumgr->device, index); + if ((cur_value & mask) == (value & mask)) + break; + udelay(1); + } + + /* timeout means wrong logic*/ + if (i == smumgr->usec_timeout) + return -1; + + return 0; +} + +int smum_wait_for_register_unequal(struct pp_smumgr *smumgr, + uint32_t index, + uint32_t value, uint32_t mask) +{ + uint32_t i; + uint32_t cur_value; + + if (smumgr == NULL) + return -EINVAL; + + for (i = 0; i < smumgr->usec_timeout; i++) { + cur_value = cgs_read_register(smumgr->device, + index); + if ((cur_value & mask) != (value & mask)) + break; + udelay(1); + } + + /* timeout means wrong logic */ + if (i == smumgr->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. + */ +int smum_wait_on_indirect_register(struct pp_smumgr *smumgr, + uint32_t indirect_port, + uint32_t index, + uint32_t value, + uint32_t mask) +{ + if (smumgr == NULL || smumgr->device == NULL) + return -EINVAL; + + cgs_write_register(smumgr->device, indirect_port, index); + return smum_wait_on_register(smumgr, indirect_port + 1, + mask, value); +} + +void smum_wait_for_indirect_register_unequal( + struct pp_smumgr *smumgr, + uint32_t indirect_port, + uint32_t index, + uint32_t value, + uint32_t mask) +{ + if (smumgr == NULL || smumgr->device == NULL) + return; + cgs_write_register(smumgr->device, indirect_port, index); + smum_wait_for_register_unequal(smumgr, indirect_port + 1, + value, mask); +} + +int smu_allocate_memory(void *device, uint32_t size, + enum cgs_gpu_mem_type type, + uint32_t byte_align, uint64_t *mc_addr, + void **kptr, void *handle) +{ + int ret = 0; + cgs_handle_t cgs_handle; + + if (device == NULL || handle == NULL || + mc_addr == NULL || kptr == NULL) + return -EINVAL; + + ret = cgs_alloc_gpu_mem(device, type, size, byte_align, + 0, 0, (cgs_handle_t *)handle); + if (ret) + return -ENOMEM; + + cgs_handle = *(cgs_handle_t *)handle; + + ret = cgs_gmap_gpu_mem(device, cgs_handle, mc_addr); + if (ret) + goto error_gmap; + + ret = cgs_kmap_gpu_mem(device, cgs_handle, kptr); + if (ret) + goto error_kmap; + + return 0; + +error_kmap: + cgs_gunmap_gpu_mem(device, cgs_handle); + +error_gmap: + cgs_free_gpu_mem(device, cgs_handle); + return ret; +} + +int smu_free_memory(void *device, void *handle) +{ + cgs_handle_t cgs_handle = (cgs_handle_t)handle; + + if (device == NULL || handle == NULL) + return -EINVAL; + + cgs_kunmap_gpu_mem(device, cgs_handle); + cgs_gunmap_gpu_mem(device, cgs_handle); + cgs_free_gpu_mem(device, cgs_handle); + + return 0; +} |