Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 387 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 000000000..b59572175
--- /dev/null
+++ b/drivers/misc/habanalabs/goya/goya_hwmgr.c
@@ -0,0 +1,387 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2016-2022 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;
+
+	if (!hdev->pdev)
+		return;
+
+	switch (freq) {
+	case PLL_HIGH:
+		hl_fw_set_frequency(hdev, HL_GOYA_MME_PLL, hdev->high_pll);
+		hl_fw_set_frequency(hdev, HL_GOYA_TPC_PLL, hdev->high_pll);
+		hl_fw_set_frequency(hdev, HL_GOYA_IC_PLL, hdev->high_pll);
+		break;
+	case PLL_LOW:
+		hl_fw_set_frequency(hdev, HL_GOYA_MME_PLL, GOYA_PLL_FREQ_LOW);
+		hl_fw_set_frequency(hdev, HL_GOYA_TPC_PLL, GOYA_PLL_FREQ_LOW);
+		hl_fw_set_frequency(hdev, HL_GOYA_IC_PLL, GOYA_PLL_FREQ_LOW);
+		break;
+	case PLL_LAST:
+		hl_fw_set_frequency(hdev, HL_GOYA_MME_PLL, goya->mme_clk);
+		hl_fw_set_frequency(hdev, HL_GOYA_TPC_PLL, goya->tpc_clk);
+		hl_fw_set_frequency(hdev, HL_GOYA_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_operational(hdev, NULL))
+		return -ENODEV;
+
+	value = hl_fw_get_frequency(hdev, HL_GOYA_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_operational(hdev, NULL)) {
+		count = -ENODEV;
+		goto fail;
+	}
+
+	if (goya->pm_mng_profile == PM_AUTO) {
+		count = -EPERM;
+		goto fail;
+	}
+
+	rc = kstrtoul(buf, 0, &value);
+
+	if (rc) {
+		count = -EINVAL;
+		goto fail;
+	}
+
+	hl_fw_set_frequency(hdev, HL_GOYA_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_operational(hdev, NULL))
+		return -ENODEV;
+
+	value = hl_fw_get_frequency(hdev, HL_GOYA_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_operational(hdev, NULL)) {
+		count = -ENODEV;
+		goto fail;
+	}
+
+	if (goya->pm_mng_profile == PM_AUTO) {
+		count = -EPERM;
+		goto fail;
+	}
+
+	rc = kstrtoul(buf, 0, &value);
+
+	if (rc) {
+		count = -EINVAL;
+		goto fail;
+	}
+
+	hl_fw_set_frequency(hdev, HL_GOYA_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_operational(hdev, NULL))
+		return -ENODEV;
+
+	value = hl_fw_get_frequency(hdev, HL_GOYA_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_operational(hdev, NULL)) {
+		count = -ENODEV;
+		goto fail;
+	}
+
+	if (goya->pm_mng_profile == PM_AUTO) {
+		count = -EPERM;
+		goto fail;
+	}
+
+	rc = kstrtoul(buf, 0, &value);
+
+	if (rc) {
+		count = -EINVAL;
+		goto fail;
+	}
+
+	hl_fw_set_frequency(hdev, HL_GOYA_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_operational(hdev, NULL))
+		return -ENODEV;
+
+	value = hl_fw_get_frequency(hdev, HL_GOYA_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_operational(hdev, NULL))
+		return -ENODEV;
+
+	value = hl_fw_get_frequency(hdev, HL_GOYA_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_operational(hdev, NULL))
+		return -ENODEV;
+
+	value = hl_fw_get_frequency(hdev, HL_GOYA_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);
+	struct goya_device *goya = hdev->asic_specific;
+
+	if (!hl_device_operational(hdev, NULL))
+		return -ENODEV;
+
+	return sprintf(buf, "%s\n",
+			(goya->pm_mng_profile == PM_AUTO) ? "auto" :
+			(goya->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);
+	struct goya_device *goya = hdev->asic_specific;
+
+	if (!hl_device_operational(hdev, NULL)) {
+		count = -ENODEV;
+		goto out;
+	}
+
+	mutex_lock(&hdev->fpriv_list_lock);
+
+	if (hdev->is_compute_ctx_active) {
+		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 (goya->pm_mng_profile == PM_MANUAL) {
+			goya->curr_pll_profile = PLL_HIGH;
+			goya->pm_mng_profile = PM_AUTO;
+			goya_set_frequency(hdev, PLL_LOW);
+		}
+	} else if (strncmp("manual", buf, strlen("manual")) == 0) {
+		if (goya->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
+			 */
+			goya->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
+			 */
+			if (goya->goya_work)
+				flush_delayed_work(&goya->goya_work->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_operational(hdev, NULL))
+		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_operational(hdev, NULL)) {
+		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_clk_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,
+};
+
+static ssize_t infineon_ver_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hl_device *hdev = dev_get_drvdata(dev);
+	struct cpucp_info *cpucp_info;
+
+	cpucp_info = &hdev->asic_prop.cpucp_info;
+
+	return sprintf(buf, "%#04x\n", le32_to_cpu(cpucp_info->infineon_version));
+}
+
+static DEVICE_ATTR_RO(infineon_ver);
+
+static struct attribute *goya_vrm_dev_attrs[] = {
+	&dev_attr_infineon_ver.attr,
+	NULL,
+};
+
+void goya_add_device_attr(struct hl_device *hdev, struct attribute_group *dev_clk_attr_grp,
+				struct attribute_group *dev_vrm_attr_grp)
+{
+	dev_clk_attr_grp->attrs = goya_clk_dev_attrs;
+	dev_vrm_attr_grp->attrs = goya_vrm_dev_attrs;
+}