388 lines
8.5 KiB
C
388 lines
8.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright 2016-2022 HabanaLabs, Ltd.
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* All Rights Reserved.
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*/
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#include "goyaP.h"
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void goya_set_pll_profile(struct hl_device *hdev, enum hl_pll_frequency freq)
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{
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struct goya_device *goya = hdev->asic_specific;
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if (!hdev->pdev)
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return;
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switch (freq) {
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case PLL_HIGH:
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hl_fw_set_frequency(hdev, HL_GOYA_MME_PLL, hdev->high_pll);
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hl_fw_set_frequency(hdev, HL_GOYA_TPC_PLL, hdev->high_pll);
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hl_fw_set_frequency(hdev, HL_GOYA_IC_PLL, hdev->high_pll);
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break;
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case PLL_LOW:
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hl_fw_set_frequency(hdev, HL_GOYA_MME_PLL, GOYA_PLL_FREQ_LOW);
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hl_fw_set_frequency(hdev, HL_GOYA_TPC_PLL, GOYA_PLL_FREQ_LOW);
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hl_fw_set_frequency(hdev, HL_GOYA_IC_PLL, GOYA_PLL_FREQ_LOW);
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break;
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case PLL_LAST:
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hl_fw_set_frequency(hdev, HL_GOYA_MME_PLL, goya->mme_clk);
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hl_fw_set_frequency(hdev, HL_GOYA_TPC_PLL, goya->tpc_clk);
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hl_fw_set_frequency(hdev, HL_GOYA_IC_PLL, goya->ic_clk);
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break;
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default:
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dev_err(hdev->dev, "unknown frequency setting\n");
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}
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}
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static ssize_t mme_clk_show(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct hl_device *hdev = dev_get_drvdata(dev);
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long value;
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if (!hl_device_operational(hdev, NULL))
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return -ENODEV;
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value = hl_fw_get_frequency(hdev, HL_GOYA_MME_PLL, false);
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if (value < 0)
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return value;
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return sprintf(buf, "%lu\n", value);
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}
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static ssize_t mme_clk_store(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct hl_device *hdev = dev_get_drvdata(dev);
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struct goya_device *goya = hdev->asic_specific;
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int rc;
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long value;
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if (!hl_device_operational(hdev, NULL)) {
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count = -ENODEV;
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goto fail;
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}
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if (goya->pm_mng_profile == PM_AUTO) {
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count = -EPERM;
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goto fail;
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}
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rc = kstrtoul(buf, 0, &value);
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if (rc) {
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count = -EINVAL;
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goto fail;
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}
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hl_fw_set_frequency(hdev, HL_GOYA_MME_PLL, value);
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goya->mme_clk = value;
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fail:
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return count;
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}
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static ssize_t tpc_clk_show(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct hl_device *hdev = dev_get_drvdata(dev);
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long value;
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if (!hl_device_operational(hdev, NULL))
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return -ENODEV;
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value = hl_fw_get_frequency(hdev, HL_GOYA_TPC_PLL, false);
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if (value < 0)
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return value;
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return sprintf(buf, "%lu\n", value);
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}
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static ssize_t tpc_clk_store(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct hl_device *hdev = dev_get_drvdata(dev);
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struct goya_device *goya = hdev->asic_specific;
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int rc;
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long value;
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if (!hl_device_operational(hdev, NULL)) {
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count = -ENODEV;
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goto fail;
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}
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if (goya->pm_mng_profile == PM_AUTO) {
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count = -EPERM;
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goto fail;
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}
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rc = kstrtoul(buf, 0, &value);
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if (rc) {
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count = -EINVAL;
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goto fail;
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}
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hl_fw_set_frequency(hdev, HL_GOYA_TPC_PLL, value);
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goya->tpc_clk = value;
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fail:
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return count;
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}
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static ssize_t ic_clk_show(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct hl_device *hdev = dev_get_drvdata(dev);
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long value;
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if (!hl_device_operational(hdev, NULL))
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return -ENODEV;
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value = hl_fw_get_frequency(hdev, HL_GOYA_IC_PLL, false);
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if (value < 0)
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return value;
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return sprintf(buf, "%lu\n", value);
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}
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static ssize_t ic_clk_store(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct hl_device *hdev = dev_get_drvdata(dev);
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struct goya_device *goya = hdev->asic_specific;
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int rc;
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long value;
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if (!hl_device_operational(hdev, NULL)) {
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count = -ENODEV;
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goto fail;
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}
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if (goya->pm_mng_profile == PM_AUTO) {
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count = -EPERM;
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goto fail;
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}
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rc = kstrtoul(buf, 0, &value);
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if (rc) {
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count = -EINVAL;
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goto fail;
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}
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hl_fw_set_frequency(hdev, HL_GOYA_IC_PLL, value);
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goya->ic_clk = value;
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fail:
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return count;
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}
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static ssize_t mme_clk_curr_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct hl_device *hdev = dev_get_drvdata(dev);
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long value;
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if (!hl_device_operational(hdev, NULL))
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return -ENODEV;
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value = hl_fw_get_frequency(hdev, HL_GOYA_MME_PLL, true);
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if (value < 0)
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return value;
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return sprintf(buf, "%lu\n", value);
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}
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static ssize_t tpc_clk_curr_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct hl_device *hdev = dev_get_drvdata(dev);
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long value;
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if (!hl_device_operational(hdev, NULL))
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return -ENODEV;
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value = hl_fw_get_frequency(hdev, HL_GOYA_TPC_PLL, true);
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if (value < 0)
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return value;
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return sprintf(buf, "%lu\n", value);
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}
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static ssize_t ic_clk_curr_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct hl_device *hdev = dev_get_drvdata(dev);
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long value;
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if (!hl_device_operational(hdev, NULL))
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return -ENODEV;
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value = hl_fw_get_frequency(hdev, HL_GOYA_IC_PLL, true);
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if (value < 0)
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return value;
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return sprintf(buf, "%lu\n", value);
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}
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static ssize_t pm_mng_profile_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct hl_device *hdev = dev_get_drvdata(dev);
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struct goya_device *goya = hdev->asic_specific;
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if (!hl_device_operational(hdev, NULL))
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return -ENODEV;
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return sprintf(buf, "%s\n",
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(goya->pm_mng_profile == PM_AUTO) ? "auto" :
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(goya->pm_mng_profile == PM_MANUAL) ? "manual" :
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"unknown");
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}
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static ssize_t pm_mng_profile_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t count)
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{
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struct hl_device *hdev = dev_get_drvdata(dev);
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struct goya_device *goya = hdev->asic_specific;
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if (!hl_device_operational(hdev, NULL)) {
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count = -ENODEV;
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goto out;
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}
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mutex_lock(&hdev->fpriv_list_lock);
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if (hdev->is_compute_ctx_active) {
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dev_err(hdev->dev,
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"Can't change PM profile while compute context is opened on the device\n");
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count = -EPERM;
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goto unlock_mutex;
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}
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if (strncmp("auto", buf, strlen("auto")) == 0) {
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/* Make sure we are in LOW PLL when changing modes */
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if (goya->pm_mng_profile == PM_MANUAL) {
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goya->curr_pll_profile = PLL_HIGH;
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goya->pm_mng_profile = PM_AUTO;
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goya_set_frequency(hdev, PLL_LOW);
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}
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} else if (strncmp("manual", buf, strlen("manual")) == 0) {
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if (goya->pm_mng_profile == PM_AUTO) {
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/* Must release the lock because the work thread also
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* takes this lock. But before we release it, set
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* the mode to manual so nothing will change if a user
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* suddenly opens the device
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*/
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goya->pm_mng_profile = PM_MANUAL;
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mutex_unlock(&hdev->fpriv_list_lock);
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/* Flush the current work so we can return to the user
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* knowing that he is the only one changing frequencies
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*/
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if (goya->goya_work)
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flush_delayed_work(&goya->goya_work->work_freq);
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return count;
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}
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} else {
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dev_err(hdev->dev, "value should be auto or manual\n");
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count = -EINVAL;
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}
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unlock_mutex:
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mutex_unlock(&hdev->fpriv_list_lock);
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out:
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return count;
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}
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static ssize_t high_pll_show(struct device *dev, struct device_attribute *attr,
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char *buf)
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{
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struct hl_device *hdev = dev_get_drvdata(dev);
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if (!hl_device_operational(hdev, NULL))
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return -ENODEV;
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return sprintf(buf, "%u\n", hdev->high_pll);
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}
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static ssize_t high_pll_store(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct hl_device *hdev = dev_get_drvdata(dev);
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long value;
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int rc;
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if (!hl_device_operational(hdev, NULL)) {
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count = -ENODEV;
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goto out;
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}
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rc = kstrtoul(buf, 0, &value);
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if (rc) {
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count = -EINVAL;
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goto out;
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}
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hdev->high_pll = value;
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out:
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return count;
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}
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static DEVICE_ATTR_RW(high_pll);
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static DEVICE_ATTR_RW(ic_clk);
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static DEVICE_ATTR_RO(ic_clk_curr);
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static DEVICE_ATTR_RW(mme_clk);
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static DEVICE_ATTR_RO(mme_clk_curr);
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static DEVICE_ATTR_RW(pm_mng_profile);
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static DEVICE_ATTR_RW(tpc_clk);
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static DEVICE_ATTR_RO(tpc_clk_curr);
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static struct attribute *goya_clk_dev_attrs[] = {
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&dev_attr_high_pll.attr,
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&dev_attr_ic_clk.attr,
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&dev_attr_ic_clk_curr.attr,
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&dev_attr_mme_clk.attr,
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&dev_attr_mme_clk_curr.attr,
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&dev_attr_pm_mng_profile.attr,
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&dev_attr_tpc_clk.attr,
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&dev_attr_tpc_clk_curr.attr,
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NULL,
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};
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static ssize_t infineon_ver_show(struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct hl_device *hdev = dev_get_drvdata(dev);
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struct cpucp_info *cpucp_info;
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cpucp_info = &hdev->asic_prop.cpucp_info;
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return sprintf(buf, "%#04x\n", le32_to_cpu(cpucp_info->infineon_version));
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}
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static DEVICE_ATTR_RO(infineon_ver);
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static struct attribute *goya_vrm_dev_attrs[] = {
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&dev_attr_infineon_ver.attr,
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NULL,
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};
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void goya_add_device_attr(struct hl_device *hdev, struct attribute_group *dev_clk_attr_grp,
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struct attribute_group *dev_vrm_attr_grp)
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{
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dev_clk_attr_grp->attrs = goya_clk_dev_attrs;
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dev_vrm_attr_grp->attrs = goya_vrm_dev_attrs;
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}
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