diff options
Diffstat (limited to 'drivers/misc/habanalabs/goya/goya_hwmgr.c')
| -rw-r--r-- | drivers/misc/habanalabs/goya/goya_hwmgr.c | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/goya/goya_hwmgr.c b/drivers/misc/habanalabs/goya/goya_hwmgr.c new file mode 100644 index 000000000000..088692c852b6 --- /dev/null +++ b/drivers/misc/habanalabs/goya/goya_hwmgr.c @@ -0,0 +1,254 @@ +// SPDX-License-Identifier: GPL-2.0 + +/* + * Copyright 2016-2019 HabanaLabs, Ltd. + * All Rights Reserved. + */ + +#include "goyaP.h" + +void goya_set_pll_profile(struct hl_device *hdev, enum hl_pll_frequency freq) +{ + struct goya_device *goya = hdev->asic_specific; + + switch (freq) { + case PLL_HIGH: + hl_set_frequency(hdev, MME_PLL, hdev->high_pll); + hl_set_frequency(hdev, TPC_PLL, hdev->high_pll); + hl_set_frequency(hdev, IC_PLL, hdev->high_pll); + break; + case PLL_LOW: + hl_set_frequency(hdev, MME_PLL, GOYA_PLL_FREQ_LOW); + hl_set_frequency(hdev, TPC_PLL, GOYA_PLL_FREQ_LOW); + hl_set_frequency(hdev, IC_PLL, GOYA_PLL_FREQ_LOW); + break; + case PLL_LAST: + hl_set_frequency(hdev, MME_PLL, goya->mme_clk); + hl_set_frequency(hdev, TPC_PLL, goya->tpc_clk); + hl_set_frequency(hdev, IC_PLL, goya->ic_clk); + break; + default: + dev_err(hdev->dev, "unknown frequency setting\n"); + } +} + +static ssize_t mme_clk_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct hl_device *hdev = dev_get_drvdata(dev); + long value; + + if (hl_device_disabled_or_in_reset(hdev)) + return -ENODEV; + + value = hl_get_frequency(hdev, MME_PLL, false); + + if (value < 0) + return value; + + return sprintf(buf, "%lu\n", value); +} + +static ssize_t mme_clk_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hl_device *hdev = dev_get_drvdata(dev); + struct goya_device *goya = hdev->asic_specific; + int rc; + long value; + + if (hl_device_disabled_or_in_reset(hdev)) { + count = -ENODEV; + goto fail; + } + + if (hdev->pm_mng_profile == PM_AUTO) { + count = -EPERM; + goto fail; + } + + rc = kstrtoul(buf, 0, &value); + + if (rc) { + count = -EINVAL; + goto fail; + } + + hl_set_frequency(hdev, MME_PLL, value); + goya->mme_clk = value; + +fail: + return count; +} + +static ssize_t tpc_clk_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct hl_device *hdev = dev_get_drvdata(dev); + long value; + + if (hl_device_disabled_or_in_reset(hdev)) + return -ENODEV; + + value = hl_get_frequency(hdev, TPC_PLL, false); + + if (value < 0) + return value; + + return sprintf(buf, "%lu\n", value); +} + +static ssize_t tpc_clk_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hl_device *hdev = dev_get_drvdata(dev); + struct goya_device *goya = hdev->asic_specific; + int rc; + long value; + + if (hl_device_disabled_or_in_reset(hdev)) { + count = -ENODEV; + goto fail; + } + + if (hdev->pm_mng_profile == PM_AUTO) { + count = -EPERM; + goto fail; + } + + rc = kstrtoul(buf, 0, &value); + + if (rc) { + count = -EINVAL; + goto fail; + } + + hl_set_frequency(hdev, TPC_PLL, value); + goya->tpc_clk = value; + +fail: + return count; +} + +static ssize_t ic_clk_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct hl_device *hdev = dev_get_drvdata(dev); + long value; + + if (hl_device_disabled_or_in_reset(hdev)) + return -ENODEV; + + value = hl_get_frequency(hdev, IC_PLL, false); + + if (value < 0) + return value; + + return sprintf(buf, "%lu\n", value); +} + +static ssize_t ic_clk_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hl_device *hdev = dev_get_drvdata(dev); + struct goya_device *goya = hdev->asic_specific; + int rc; + long value; + + if (hl_device_disabled_or_in_reset(hdev)) { + count = -ENODEV; + goto fail; + } + + if (hdev->pm_mng_profile == PM_AUTO) { + count = -EPERM; + goto fail; + } + + rc = kstrtoul(buf, 0, &value); + + if (rc) { + count = -EINVAL; + goto fail; + } + + hl_set_frequency(hdev, IC_PLL, value); + goya->ic_clk = value; + +fail: + return count; +} + +static ssize_t mme_clk_curr_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct hl_device *hdev = dev_get_drvdata(dev); + long value; + + if (hl_device_disabled_or_in_reset(hdev)) + return -ENODEV; + + value = hl_get_frequency(hdev, MME_PLL, true); + + if (value < 0) + return value; + + return sprintf(buf, "%lu\n", value); +} + +static ssize_t tpc_clk_curr_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct hl_device *hdev = dev_get_drvdata(dev); + long value; + + if (hl_device_disabled_or_in_reset(hdev)) + return -ENODEV; + + value = hl_get_frequency(hdev, TPC_PLL, true); + + if (value < 0) + return value; + + return sprintf(buf, "%lu\n", value); +} + +static ssize_t ic_clk_curr_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct hl_device *hdev = dev_get_drvdata(dev); + long value; + + if (hl_device_disabled_or_in_reset(hdev)) + return -ENODEV; + + value = hl_get_frequency(hdev, IC_PLL, true); + + if (value < 0) + return value; + + return sprintf(buf, "%lu\n", value); +} + +static DEVICE_ATTR_RW(ic_clk); +static DEVICE_ATTR_RO(ic_clk_curr); +static DEVICE_ATTR_RW(mme_clk); +static DEVICE_ATTR_RO(mme_clk_curr); +static DEVICE_ATTR_RW(tpc_clk); +static DEVICE_ATTR_RO(tpc_clk_curr); + +static struct attribute *goya_dev_attrs[] = { + &dev_attr_ic_clk.attr, + &dev_attr_ic_clk_curr.attr, + &dev_attr_mme_clk.attr, + &dev_attr_mme_clk_curr.attr, + &dev_attr_tpc_clk.attr, + &dev_attr_tpc_clk_curr.attr, + NULL, +}; + +void goya_add_device_attr(struct hl_device *hdev, + struct attribute_group *dev_attr_grp) +{ + dev_attr_grp->attrs = goya_dev_attrs; +} |