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path: root/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
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Diffstat (limited to 'drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c')
-rw-r--r--drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c681
1 files changed, 681 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c b/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
new file mode 100644
index 000000000000..c30d3338825f
--- /dev/null
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
@@ -0,0 +1,681 @@
+/*
+ * 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.
+ */
+
+#define SWSMU_CODE_LAYER_L4
+
+#include "amdgpu.h"
+#include "amdgpu_smu.h"
+#include "smu_cmn.h"
+#include "soc15_common.h"
+
+/*
+ * DO NOT use these for err/warn/info/debug messages.
+ * Use dev_err, dev_warn, dev_info and dev_dbg instead.
+ * They are more MGPU friendly.
+ */
+#undef pr_err
+#undef pr_warn
+#undef pr_info
+#undef pr_debug
+
+/*
+ * Although these are defined in each ASIC's specific header file.
+ * They share the same definitions and values. That makes common
+ * APIs for SMC messages issuing for all ASICs possible.
+ */
+#define mmMP1_SMN_C2PMSG_66 0x0282
+#define mmMP1_SMN_C2PMSG_66_BASE_IDX 0
+
+#define mmMP1_SMN_C2PMSG_82 0x0292
+#define mmMP1_SMN_C2PMSG_82_BASE_IDX 0
+
+#define mmMP1_SMN_C2PMSG_90 0x029a
+#define mmMP1_SMN_C2PMSG_90_BASE_IDX 0
+
+#define MP1_C2PMSG_90__CONTENT_MASK 0xFFFFFFFFL
+
+#undef __SMU_DUMMY_MAP
+#define __SMU_DUMMY_MAP(type) #type
+static const char* __smu_message_names[] = {
+ SMU_MESSAGE_TYPES
+};
+
+static const char *smu_get_message_name(struct smu_context *smu,
+ enum smu_message_type type)
+{
+ if (type < 0 || type >= SMU_MSG_MAX_COUNT)
+ return "unknown smu message";
+
+ return __smu_message_names[type];
+}
+
+static void smu_cmn_send_msg_without_waiting(struct smu_context *smu,
+ uint16_t msg)
+{
+ struct amdgpu_device *adev = smu->adev;
+
+ WREG32_SOC15_NO_KIQ(MP1, 0, mmMP1_SMN_C2PMSG_66, msg);
+}
+
+static void smu_cmn_read_arg(struct smu_context *smu,
+ uint32_t *arg)
+{
+ struct amdgpu_device *adev = smu->adev;
+
+ *arg = RREG32_SOC15_NO_KIQ(MP1, 0, mmMP1_SMN_C2PMSG_82);
+}
+
+static int smu_cmn_wait_for_response(struct smu_context *smu)
+{
+ struct amdgpu_device *adev = smu->adev;
+ uint32_t cur_value, i, timeout = adev->usec_timeout * 10;
+
+ for (i = 0; i < timeout; i++) {
+ cur_value = RREG32_SOC15_NO_KIQ(MP1, 0, mmMP1_SMN_C2PMSG_90);
+ if ((cur_value & MP1_C2PMSG_90__CONTENT_MASK) != 0)
+ return cur_value == 0x1 ? 0 : -EIO;
+
+ udelay(1);
+ }
+
+ /* timeout means wrong logic */
+ if (i == timeout)
+ return -ETIME;
+
+ return RREG32_SOC15_NO_KIQ(MP1, 0, mmMP1_SMN_C2PMSG_90) == 0x1 ? 0 : -EIO;
+}
+
+int smu_cmn_send_smc_msg_with_param(struct smu_context *smu,
+ enum smu_message_type msg,
+ uint32_t param,
+ uint32_t *read_arg)
+{
+ struct amdgpu_device *adev = smu->adev;
+ int ret = 0, index = 0;
+
+ if (smu->adev->in_pci_err_recovery)
+ return 0;
+
+ index = smu_cmn_to_asic_specific_index(smu,
+ CMN2ASIC_MAPPING_MSG,
+ msg);
+ if (index < 0)
+ return index == -EACCES ? 0 : index;
+
+ mutex_lock(&smu->message_lock);
+ ret = smu_cmn_wait_for_response(smu);
+ if (ret) {
+ dev_err(adev->dev, "Msg issuing pre-check failed and "
+ "SMU may be not in the right state!\n");
+ goto out;
+ }
+
+ WREG32_SOC15_NO_KIQ(MP1, 0, mmMP1_SMN_C2PMSG_90, 0);
+
+ WREG32_SOC15_NO_KIQ(MP1, 0, mmMP1_SMN_C2PMSG_82, param);
+
+ smu_cmn_send_msg_without_waiting(smu, (uint16_t)index);
+
+ ret = smu_cmn_wait_for_response(smu);
+ if (ret) {
+ dev_err(adev->dev, "failed send message: %10s (%d) \tparam: 0x%08x response %#x\n",
+ smu_get_message_name(smu, msg), index, param, ret);
+ goto out;
+ }
+
+ if (read_arg)
+ smu_cmn_read_arg(smu, read_arg);
+
+out:
+ mutex_unlock(&smu->message_lock);
+ return ret;
+}
+
+int smu_cmn_send_smc_msg(struct smu_context *smu,
+ enum smu_message_type msg,
+ uint32_t *read_arg)
+{
+ return smu_cmn_send_smc_msg_with_param(smu,
+ msg,
+ 0,
+ read_arg);
+}
+
+int smu_cmn_to_asic_specific_index(struct smu_context *smu,
+ enum smu_cmn2asic_mapping_type type,
+ uint32_t index)
+{
+ struct cmn2asic_msg_mapping msg_mapping;
+ struct cmn2asic_mapping mapping;
+
+ switch (type) {
+ case CMN2ASIC_MAPPING_MSG:
+ if (index >= SMU_MSG_MAX_COUNT ||
+ !smu->message_map)
+ return -EINVAL;
+
+ msg_mapping = smu->message_map[index];
+ if (!msg_mapping.valid_mapping)
+ return -EINVAL;
+
+ if (amdgpu_sriov_vf(smu->adev) &&
+ !msg_mapping.valid_in_vf)
+ return -EACCES;
+
+ return msg_mapping.map_to;
+
+ case CMN2ASIC_MAPPING_CLK:
+ if (index >= SMU_CLK_COUNT ||
+ !smu->clock_map)
+ return -EINVAL;
+
+ mapping = smu->clock_map[index];
+ if (!mapping.valid_mapping)
+ return -EINVAL;
+
+ return mapping.map_to;
+
+ case CMN2ASIC_MAPPING_FEATURE:
+ if (index >= SMU_FEATURE_COUNT ||
+ !smu->feature_map)
+ return -EINVAL;
+
+ mapping = smu->feature_map[index];
+ if (!mapping.valid_mapping)
+ return -EINVAL;
+
+ return mapping.map_to;
+
+ case CMN2ASIC_MAPPING_TABLE:
+ if (index >= SMU_TABLE_COUNT ||
+ !smu->table_map)
+ return -EINVAL;
+
+ mapping = smu->table_map[index];
+ if (!mapping.valid_mapping)
+ return -EINVAL;
+
+ return mapping.map_to;
+
+ case CMN2ASIC_MAPPING_PWR:
+ if (index >= SMU_POWER_SOURCE_COUNT ||
+ !smu->pwr_src_map)
+ return -EINVAL;
+
+ mapping = smu->pwr_src_map[index];
+ if (!mapping.valid_mapping)
+ return -EINVAL;
+
+ return mapping.map_to;
+
+ case CMN2ASIC_MAPPING_WORKLOAD:
+ if (index > PP_SMC_POWER_PROFILE_CUSTOM ||
+ !smu->workload_map)
+ return -EINVAL;
+
+ mapping = smu->workload_map[index];
+ if (!mapping.valid_mapping)
+ return -EINVAL;
+
+ return mapping.map_to;
+
+ default:
+ return -EINVAL;
+ }
+}
+
+int smu_cmn_feature_is_supported(struct smu_context *smu,
+ enum smu_feature_mask mask)
+{
+ struct smu_feature *feature = &smu->smu_feature;
+ int feature_id;
+ int ret = 0;
+
+ feature_id = smu_cmn_to_asic_specific_index(smu,
+ CMN2ASIC_MAPPING_FEATURE,
+ mask);
+ if (feature_id < 0)
+ return 0;
+
+ WARN_ON(feature_id > feature->feature_num);
+
+ mutex_lock(&feature->mutex);
+ ret = test_bit(feature_id, feature->supported);
+ mutex_unlock(&feature->mutex);
+
+ return ret;
+}
+
+int smu_cmn_feature_is_enabled(struct smu_context *smu,
+ enum smu_feature_mask mask)
+{
+ struct smu_feature *feature = &smu->smu_feature;
+ int feature_id;
+ int ret = 0;
+
+ if (smu->is_apu)
+ return 1;
+ feature_id = smu_cmn_to_asic_specific_index(smu,
+ CMN2ASIC_MAPPING_FEATURE,
+ mask);
+ if (feature_id < 0)
+ return 0;
+
+ WARN_ON(feature_id > feature->feature_num);
+
+ mutex_lock(&feature->mutex);
+ ret = test_bit(feature_id, feature->enabled);
+ mutex_unlock(&feature->mutex);
+
+ return ret;
+}
+
+bool smu_cmn_clk_dpm_is_enabled(struct smu_context *smu,
+ enum smu_clk_type clk_type)
+{
+ enum smu_feature_mask feature_id = 0;
+
+ switch (clk_type) {
+ case SMU_MCLK:
+ case SMU_UCLK:
+ feature_id = SMU_FEATURE_DPM_UCLK_BIT;
+ break;
+ case SMU_GFXCLK:
+ case SMU_SCLK:
+ feature_id = SMU_FEATURE_DPM_GFXCLK_BIT;
+ break;
+ case SMU_SOCCLK:
+ feature_id = SMU_FEATURE_DPM_SOCCLK_BIT;
+ break;
+ default:
+ return true;
+ }
+
+ if (!smu_cmn_feature_is_enabled(smu, feature_id))
+ return false;
+
+ return true;
+}
+
+int smu_cmn_get_enabled_mask(struct smu_context *smu,
+ uint32_t *feature_mask,
+ uint32_t num)
+{
+ uint32_t feature_mask_high = 0, feature_mask_low = 0;
+ struct smu_feature *feature = &smu->smu_feature;
+ int ret = 0;
+
+ if (!feature_mask || num < 2)
+ return -EINVAL;
+
+ if (bitmap_empty(feature->enabled, feature->feature_num)) {
+ ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetEnabledSmuFeaturesHigh, &feature_mask_high);
+ if (ret)
+ return ret;
+
+ ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetEnabledSmuFeaturesLow, &feature_mask_low);
+ if (ret)
+ return ret;
+
+ feature_mask[0] = feature_mask_low;
+ feature_mask[1] = feature_mask_high;
+ } else {
+ bitmap_copy((unsigned long *)feature_mask, feature->enabled,
+ feature->feature_num);
+ }
+
+ return ret;
+}
+
+int smu_cmn_feature_update_enable_state(struct smu_context *smu,
+ uint64_t feature_mask,
+ bool enabled)
+{
+ struct smu_feature *feature = &smu->smu_feature;
+ int ret = 0;
+
+ if (enabled) {
+ ret = smu_cmn_send_smc_msg_with_param(smu,
+ SMU_MSG_EnableSmuFeaturesLow,
+ lower_32_bits(feature_mask),
+ NULL);
+ if (ret)
+ return ret;
+ ret = smu_cmn_send_smc_msg_with_param(smu,
+ SMU_MSG_EnableSmuFeaturesHigh,
+ upper_32_bits(feature_mask),
+ NULL);
+ if (ret)
+ return ret;
+ } else {
+ ret = smu_cmn_send_smc_msg_with_param(smu,
+ SMU_MSG_DisableSmuFeaturesLow,
+ lower_32_bits(feature_mask),
+ NULL);
+ if (ret)
+ return ret;
+ ret = smu_cmn_send_smc_msg_with_param(smu,
+ SMU_MSG_DisableSmuFeaturesHigh,
+ upper_32_bits(feature_mask),
+ NULL);
+ if (ret)
+ return ret;
+ }
+
+ mutex_lock(&feature->mutex);
+ if (enabled)
+ bitmap_or(feature->enabled, feature->enabled,
+ (unsigned long *)(&feature_mask), SMU_FEATURE_MAX);
+ else
+ bitmap_andnot(feature->enabled, feature->enabled,
+ (unsigned long *)(&feature_mask), SMU_FEATURE_MAX);
+ mutex_unlock(&feature->mutex);
+
+ return ret;
+}
+
+int smu_cmn_feature_set_enabled(struct smu_context *smu,
+ enum smu_feature_mask mask,
+ bool enable)
+{
+ struct smu_feature *feature = &smu->smu_feature;
+ int feature_id;
+
+ feature_id = smu_cmn_to_asic_specific_index(smu,
+ CMN2ASIC_MAPPING_FEATURE,
+ mask);
+ if (feature_id < 0)
+ return -EINVAL;
+
+ WARN_ON(feature_id > feature->feature_num);
+
+ return smu_cmn_feature_update_enable_state(smu,
+ 1ULL << feature_id,
+ enable);
+}
+
+#undef __SMU_DUMMY_MAP
+#define __SMU_DUMMY_MAP(fea) #fea
+static const char* __smu_feature_names[] = {
+ SMU_FEATURE_MASKS
+};
+
+static const char *smu_get_feature_name(struct smu_context *smu,
+ enum smu_feature_mask feature)
+{
+ if (feature < 0 || feature >= SMU_FEATURE_COUNT)
+ return "unknown smu feature";
+ return __smu_feature_names[feature];
+}
+
+size_t smu_cmn_get_pp_feature_mask(struct smu_context *smu,
+ char *buf)
+{
+ uint32_t feature_mask[2] = { 0 };
+ int32_t feature_index = 0;
+ uint32_t count = 0;
+ uint32_t sort_feature[SMU_FEATURE_COUNT];
+ uint64_t hw_feature_count = 0;
+ size_t size = 0;
+ int ret = 0, i;
+
+ ret = smu_cmn_get_enabled_mask(smu,
+ feature_mask,
+ 2);
+ if (ret)
+ return 0;
+
+ size = sprintf(buf + size, "features high: 0x%08x low: 0x%08x\n",
+ feature_mask[1], feature_mask[0]);
+
+ for (i = 0; i < SMU_FEATURE_COUNT; i++) {
+ feature_index = smu_cmn_to_asic_specific_index(smu,
+ CMN2ASIC_MAPPING_FEATURE,
+ i);
+ if (feature_index < 0)
+ continue;
+ sort_feature[feature_index] = i;
+ hw_feature_count++;
+ }
+
+ for (i = 0; i < hw_feature_count; i++) {
+ size += sprintf(buf + size, "%02d. %-20s (%2d) : %s\n",
+ count++,
+ smu_get_feature_name(smu, sort_feature[i]),
+ i,
+ !!smu_cmn_feature_is_enabled(smu, sort_feature[i]) ?
+ "enabled" : "disabled");
+ }
+
+ return size;
+}
+
+int smu_cmn_set_pp_feature_mask(struct smu_context *smu,
+ uint64_t new_mask)
+{
+ int ret = 0;
+ uint32_t feature_mask[2] = { 0 };
+ uint64_t feature_2_enabled = 0;
+ uint64_t feature_2_disabled = 0;
+ uint64_t feature_enables = 0;
+
+ ret = smu_cmn_get_enabled_mask(smu,
+ feature_mask,
+ 2);
+ if (ret)
+ return ret;
+
+ feature_enables = ((uint64_t)feature_mask[1] << 32 |
+ (uint64_t)feature_mask[0]);
+
+ feature_2_enabled = ~feature_enables & new_mask;
+ feature_2_disabled = feature_enables & ~new_mask;
+
+ if (feature_2_enabled) {
+ ret = smu_cmn_feature_update_enable_state(smu,
+ feature_2_enabled,
+ true);
+ if (ret)
+ return ret;
+ }
+ if (feature_2_disabled) {
+ ret = smu_cmn_feature_update_enable_state(smu,
+ feature_2_disabled,
+ false);
+ if (ret)
+ return ret;
+ }
+
+ return ret;
+}
+
+int smu_cmn_disable_all_features_with_exception(struct smu_context *smu,
+ enum smu_feature_mask mask)
+{
+ uint64_t features_to_disable = U64_MAX;
+ int skipped_feature_id;
+
+ skipped_feature_id = smu_cmn_to_asic_specific_index(smu,
+ CMN2ASIC_MAPPING_FEATURE,
+ mask);
+ if (skipped_feature_id < 0)
+ return -EINVAL;
+
+ features_to_disable &= ~(1ULL << skipped_feature_id);
+
+ return smu_cmn_feature_update_enable_state(smu,
+ features_to_disable,
+ 0);
+}
+
+int smu_cmn_get_smc_version(struct smu_context *smu,
+ uint32_t *if_version,
+ uint32_t *smu_version)
+{
+ int ret = 0;
+
+ if (!if_version && !smu_version)
+ return -EINVAL;
+
+ if (smu->smc_fw_if_version && smu->smc_fw_version)
+ {
+ if (if_version)
+ *if_version = smu->smc_fw_if_version;
+
+ if (smu_version)
+ *smu_version = smu->smc_fw_version;
+
+ return 0;
+ }
+
+ if (if_version) {
+ ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetDriverIfVersion, if_version);
+ if (ret)
+ return ret;
+
+ smu->smc_fw_if_version = *if_version;
+ }
+
+ if (smu_version) {
+ ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetSmuVersion, smu_version);
+ if (ret)
+ return ret;
+
+ smu->smc_fw_version = *smu_version;
+ }
+
+ return ret;
+}
+
+int smu_cmn_update_table(struct smu_context *smu,
+ enum smu_table_id table_index,
+ int argument,
+ void *table_data,
+ bool drv2smu)
+{
+ struct smu_table_context *smu_table = &smu->smu_table;
+ struct amdgpu_device *adev = smu->adev;
+ struct smu_table *table = &smu_table->driver_table;
+ int table_id = smu_cmn_to_asic_specific_index(smu,
+ CMN2ASIC_MAPPING_TABLE,
+ table_index);
+ uint32_t table_size;
+ int ret = 0;
+ if (!table_data || table_id >= SMU_TABLE_COUNT || table_id < 0)
+ return -EINVAL;
+
+ table_size = smu_table->tables[table_index].size;
+
+ if (drv2smu) {
+ memcpy(table->cpu_addr, table_data, table_size);
+ /*
+ * Flush hdp cache: to guard the content seen by
+ * GPU is consitent with CPU.
+ */
+ amdgpu_asic_flush_hdp(adev, NULL);
+ }
+
+ ret = smu_cmn_send_smc_msg_with_param(smu, drv2smu ?
+ SMU_MSG_TransferTableDram2Smu :
+ SMU_MSG_TransferTableSmu2Dram,
+ table_id | ((argument & 0xFFFF) << 16),
+ NULL);
+ if (ret)
+ return ret;
+
+ if (!drv2smu) {
+ amdgpu_asic_flush_hdp(adev, NULL);
+ memcpy(table_data, table->cpu_addr, table_size);
+ }
+
+ return 0;
+}
+
+int smu_cmn_write_watermarks_table(struct smu_context *smu)
+{
+ void *watermarks_table = smu->smu_table.watermarks_table;
+
+ if (!watermarks_table)
+ return -EINVAL;
+
+ return smu_cmn_update_table(smu,
+ SMU_TABLE_WATERMARKS,
+ 0,
+ watermarks_table,
+ true);
+}
+
+int smu_cmn_write_pptable(struct smu_context *smu)
+{
+ void *pptable = smu->smu_table.driver_pptable;
+
+ return smu_cmn_update_table(smu,
+ SMU_TABLE_PPTABLE,
+ 0,
+ pptable,
+ true);
+}
+
+int smu_cmn_get_metrics_table_locked(struct smu_context *smu,
+ void *metrics_table,
+ bool bypass_cache)
+{
+ struct smu_table_context *smu_table= &smu->smu_table;
+ uint32_t table_size =
+ smu_table->tables[SMU_TABLE_SMU_METRICS].size;
+ int ret = 0;
+
+ if (bypass_cache ||
+ !smu_table->metrics_time ||
+ time_after(jiffies, smu_table->metrics_time + msecs_to_jiffies(1))) {
+ ret = smu_cmn_update_table(smu,
+ SMU_TABLE_SMU_METRICS,
+ 0,
+ smu_table->metrics_table,
+ false);
+ if (ret) {
+ dev_info(smu->adev->dev, "Failed to export SMU metrics table!\n");
+ return ret;
+ }
+ smu_table->metrics_time = jiffies;
+ }
+
+ if (metrics_table)
+ memcpy(metrics_table, smu_table->metrics_table, table_size);
+
+ return 0;
+}
+
+int smu_cmn_get_metrics_table(struct smu_context *smu,
+ void *metrics_table,
+ bool bypass_cache)
+{
+ int ret = 0;
+
+ mutex_lock(&smu->metrics_lock);
+ ret = smu_cmn_get_metrics_table_locked(smu,
+ metrics_table,
+ bypass_cache);
+ mutex_unlock(&smu->metrics_lock);
+
+ return ret;
+}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-02 09:55:57 +0300