summaryrefslogtreecommitdiff
path: root/drivers/misc/habanalabs/goya/goya_hwmgr.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/misc/habanalabs/goya/goya_hwmgr.c')
-rw-r--r--drivers/misc/habanalabs/goya/goya_hwmgr.c394
1 files changed, 0 insertions, 394 deletions
diff --git a/drivers/misc/habanalabs/goya/goya_hwmgr.c b/drivers/misc/habanalabs/goya/goya_hwmgr.c
deleted file mode 100644
index cdd4903e48fa..000000000000
--- a/drivers/misc/habanalabs/goya/goya_hwmgr.c
+++ /dev/null
@@ -1,394 +0,0 @@
-// 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");
- }
-}
-
-int goya_get_clk_rate(struct hl_device *hdev, u32 *cur_clk, u32 *max_clk)
-{
- long value;
-
- if (hl_device_disabled_or_in_reset(hdev))
- return -ENODEV;
-
- value = hl_get_frequency(hdev, MME_PLL, false);
-
- if (value < 0) {
- dev_err(hdev->dev, "Failed to retrieve device max clock %ld\n",
- value);
- return value;
- }
-
- *max_clk = (value / 1000 / 1000);
-
- value = hl_get_frequency(hdev, MME_PLL, true);
-
- if (value < 0) {
- dev_err(hdev->dev,
- "Failed to retrieve device current clock %ld\n",
- value);
- return value;
- }
-
- *cur_clk = (value / 1000 / 1000);
-
- return 0;
-}
-
-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 ssize_t pm_mng_profile_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct hl_device *hdev = dev_get_drvdata(dev);
-
- if (hl_device_disabled_or_in_reset(hdev))
- return -ENODEV;
-
- return sprintf(buf, "%s\n",
- (hdev->pm_mng_profile == PM_AUTO) ? "auto" :
- (hdev->pm_mng_profile == PM_MANUAL) ? "manual" :
- "unknown");
-}
-
-static ssize_t pm_mng_profile_store(struct device *dev,
- struct device_attribute *attr, const char *buf, size_t count)
-{
- struct hl_device *hdev = dev_get_drvdata(dev);
-
- if (hl_device_disabled_or_in_reset(hdev)) {
- count = -ENODEV;
- goto out;
- }
-
- mutex_lock(&hdev->fpriv_list_lock);
-
- if (hdev->compute_ctx) {
- dev_err(hdev->dev,
- "Can't change PM profile while compute context is opened on the device\n");
- count = -EPERM;
- goto unlock_mutex;
- }
-
- if (strncmp("auto", buf, strlen("auto")) == 0) {
- /* Make sure we are in LOW PLL when changing modes */
- if (hdev->pm_mng_profile == PM_MANUAL) {
- hdev->curr_pll_profile = PLL_HIGH;
- hdev->pm_mng_profile = PM_AUTO;
- hl_device_set_frequency(hdev, PLL_LOW);
- }
- } else if (strncmp("manual", buf, strlen("manual")) == 0) {
- if (hdev->pm_mng_profile == PM_AUTO) {
- /* Must release the lock because the work thread also
- * takes this lock. But before we release it, set
- * the mode to manual so nothing will change if a user
- * suddenly opens the device
- */
- hdev->pm_mng_profile = PM_MANUAL;
-
- mutex_unlock(&hdev->fpriv_list_lock);
-
- /* Flush the current work so we can return to the user
- * knowing that he is the only one changing frequencies
- */
- flush_delayed_work(&hdev->work_freq);
-
- return count;
- }
- } else {
- dev_err(hdev->dev, "value should be auto or manual\n");
- count = -EINVAL;
- }
-
-unlock_mutex:
- mutex_unlock(&hdev->fpriv_list_lock);
-out:
- return count;
-}
-
-static ssize_t high_pll_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct hl_device *hdev = dev_get_drvdata(dev);
-
- if (hl_device_disabled_or_in_reset(hdev))
- return -ENODEV;
-
- return sprintf(buf, "%u\n", hdev->high_pll);
-}
-
-static ssize_t high_pll_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct hl_device *hdev = dev_get_drvdata(dev);
- long value;
- int rc;
-
- if (hl_device_disabled_or_in_reset(hdev)) {
- count = -ENODEV;
- goto out;
- }
-
- rc = kstrtoul(buf, 0, &value);
-
- if (rc) {
- count = -EINVAL;
- goto out;
- }
-
- hdev->high_pll = value;
-
-out:
- return count;
-}
-
-static DEVICE_ATTR_RW(high_pll);
-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(pm_mng_profile);
-static DEVICE_ATTR_RW(tpc_clk);
-static DEVICE_ATTR_RO(tpc_clk_curr);
-
-static struct attribute *goya_dev_attrs[] = {
- &dev_attr_high_pll.attr,
- &dev_attr_ic_clk.attr,
- &dev_attr_ic_clk_curr.attr,
- &dev_attr_mme_clk.attr,
- &dev_attr_mme_clk_curr.attr,
- &dev_attr_pm_mng_profile.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;
-}
generated by cgit (git 2.34.1) at 2025-12-30 20:53:23 +0000