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-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl8d8h4eHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGd0sH/2iktYhMwPxzzpnb eI3OuTX/mRn4vUFOfpx9dmGVleMfKkpbvnn3IY7wA62Qfv7J7lkFRa1Bd1DlqXfW yyGTGDSKG5chiRCOU3s9ni92M4xIzFlrojyt/dIK2lUGMzUPI9FGlZRGQLKqqwLh 2syOXRWbcQ7e52IHtDSy3YBNveKRsP4NyqV+GxGiex18SMB/M3Pw9EMH614eDPsE QAGQi5uGv4hPJtFHgXgUyBPLFHIyFAiVxhFRIj7u2DSEKY79+wO1CGWFiFvdTY4B CbqKXLffY3iQdFsLJkj9Dl8cnOQnoY44V0EBzhhORxeOp71StUVaRwQMFa5tp48G 171s5Hs= =BQIl -----END PGP SIGNATURE----- Merge 5.8-rc7 into char-misc-next This should resolve the merge/build issues reported when trying to create linux-next. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
443 lines
9.6 KiB
C
443 lines
9.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright 2016-2019 HabanaLabs, Ltd.
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* All Rights Reserved.
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*/
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#include "habanalabs.h"
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#include <linux/pci.h>
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long hl_get_frequency(struct hl_device *hdev, u32 pll_index, bool curr)
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{
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struct armcp_packet pkt;
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long result;
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int rc;
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memset(&pkt, 0, sizeof(pkt));
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if (curr)
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pkt.ctl = cpu_to_le32(ARMCP_PACKET_FREQUENCY_CURR_GET <<
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ARMCP_PKT_CTL_OPCODE_SHIFT);
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else
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pkt.ctl = cpu_to_le32(ARMCP_PACKET_FREQUENCY_GET <<
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ARMCP_PKT_CTL_OPCODE_SHIFT);
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pkt.pll_index = cpu_to_le32(pll_index);
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rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
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0, &result);
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if (rc) {
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dev_err(hdev->dev,
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"Failed to get frequency of PLL %d, error %d\n",
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pll_index, rc);
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result = rc;
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}
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return result;
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}
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void hl_set_frequency(struct hl_device *hdev, u32 pll_index, u64 freq)
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{
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struct armcp_packet pkt;
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int rc;
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memset(&pkt, 0, sizeof(pkt));
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pkt.ctl = cpu_to_le32(ARMCP_PACKET_FREQUENCY_SET <<
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ARMCP_PKT_CTL_OPCODE_SHIFT);
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pkt.pll_index = cpu_to_le32(pll_index);
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pkt.value = cpu_to_le64(freq);
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rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
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0, NULL);
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if (rc)
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dev_err(hdev->dev,
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"Failed to set frequency to PLL %d, error %d\n",
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pll_index, rc);
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}
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u64 hl_get_max_power(struct hl_device *hdev)
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{
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struct armcp_packet pkt;
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long result;
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int rc;
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memset(&pkt, 0, sizeof(pkt));
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pkt.ctl = cpu_to_le32(ARMCP_PACKET_MAX_POWER_GET <<
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ARMCP_PKT_CTL_OPCODE_SHIFT);
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rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
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0, &result);
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if (rc) {
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dev_err(hdev->dev, "Failed to get max power, error %d\n", rc);
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result = rc;
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}
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return result;
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}
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void hl_set_max_power(struct hl_device *hdev, u64 value)
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{
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struct armcp_packet pkt;
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int rc;
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memset(&pkt, 0, sizeof(pkt));
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pkt.ctl = cpu_to_le32(ARMCP_PACKET_MAX_POWER_SET <<
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ARMCP_PKT_CTL_OPCODE_SHIFT);
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pkt.value = cpu_to_le64(value);
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rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
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0, NULL);
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if (rc)
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dev_err(hdev->dev, "Failed to set max power, error %d\n", rc);
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}
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static ssize_t uboot_ver_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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return sprintf(buf, "%s\n", hdev->asic_prop.uboot_ver);
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}
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static ssize_t armcp_kernel_ver_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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return sprintf(buf, "%s", hdev->asic_prop.armcp_info.kernel_version);
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}
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static ssize_t armcp_ver_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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return sprintf(buf, "%s\n", hdev->asic_prop.armcp_info.armcp_version);
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}
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static ssize_t cpld_ver_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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return sprintf(buf, "0x%08x\n",
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hdev->asic_prop.armcp_info.cpld_version);
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}
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static ssize_t infineon_ver_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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return sprintf(buf, "0x%04x\n",
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hdev->asic_prop.armcp_info.infineon_version);
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}
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static ssize_t fuse_ver_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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return sprintf(buf, "%s\n", hdev->asic_prop.armcp_info.fuse_version);
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}
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static ssize_t thermal_ver_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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return sprintf(buf, "%s", hdev->asic_prop.armcp_info.thermal_version);
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}
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static ssize_t preboot_btl_ver_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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return sprintf(buf, "%s\n", hdev->asic_prop.preboot_ver);
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}
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static ssize_t soft_reset_store(struct device *dev,
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struct device_attribute *attr, const char *buf,
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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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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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if (!hdev->supports_soft_reset) {
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dev_err(hdev->dev, "Device does not support soft-reset\n");
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goto out;
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}
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dev_warn(hdev->dev, "Soft-Reset requested through sysfs\n");
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hl_device_reset(hdev, false, false);
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out:
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return count;
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}
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static ssize_t hard_reset_store(struct device *dev,
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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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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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dev_warn(hdev->dev, "Hard-Reset requested through sysfs\n");
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hl_device_reset(hdev, true, false);
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out:
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return count;
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}
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static ssize_t device_type_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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char *str;
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switch (hdev->asic_type) {
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case ASIC_GOYA:
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str = "GOYA";
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break;
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case ASIC_GAUDI:
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str = "GAUDI";
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break;
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default:
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dev_err(hdev->dev, "Unrecognized ASIC type %d\n",
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hdev->asic_type);
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return -EINVAL;
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}
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return sprintf(buf, "%s\n", str);
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}
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static ssize_t pci_addr_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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return sprintf(buf, "%04x:%02x:%02x.%x\n",
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pci_domain_nr(hdev->pdev->bus),
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hdev->pdev->bus->number,
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PCI_SLOT(hdev->pdev->devfn),
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PCI_FUNC(hdev->pdev->devfn));
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}
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static ssize_t status_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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char *str;
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if (atomic_read(&hdev->in_reset))
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str = "In reset";
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else if (hdev->disabled)
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str = "Malfunction";
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else
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str = "Operational";
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return sprintf(buf, "%s\n", str);
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}
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static ssize_t soft_reset_cnt_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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return sprintf(buf, "%d\n", hdev->soft_reset_cnt);
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}
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static ssize_t hard_reset_cnt_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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return sprintf(buf, "%d\n", hdev->hard_reset_cnt);
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}
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static ssize_t max_power_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 val;
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if (hl_device_disabled_or_in_reset(hdev))
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return -ENODEV;
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val = hl_get_max_power(hdev);
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return sprintf(buf, "%lu\n", val);
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}
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static ssize_t max_power_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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unsigned long value;
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int rc;
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if (hl_device_disabled_or_in_reset(hdev)) {
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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->max_power = value;
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hl_set_max_power(hdev, value);
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out:
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return count;
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}
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static ssize_t eeprom_read_handler(struct file *filp, struct kobject *kobj,
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struct bin_attribute *attr, char *buf, loff_t offset,
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size_t max_size)
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{
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struct device *dev = container_of(kobj, struct device, kobj);
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struct hl_device *hdev = dev_get_drvdata(dev);
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char *data;
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int rc;
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if (hl_device_disabled_or_in_reset(hdev))
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return -ENODEV;
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if (!max_size)
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return -EINVAL;
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data = kzalloc(max_size, GFP_KERNEL);
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if (!data)
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return -ENOMEM;
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rc = hdev->asic_funcs->get_eeprom_data(hdev, data, max_size);
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if (rc)
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goto out;
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memcpy(buf, data, max_size);
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out:
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kfree(data);
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return max_size;
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}
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static DEVICE_ATTR_RO(armcp_kernel_ver);
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static DEVICE_ATTR_RO(armcp_ver);
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static DEVICE_ATTR_RO(cpld_ver);
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static DEVICE_ATTR_RO(device_type);
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static DEVICE_ATTR_RO(fuse_ver);
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static DEVICE_ATTR_WO(hard_reset);
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static DEVICE_ATTR_RO(hard_reset_cnt);
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static DEVICE_ATTR_RO(infineon_ver);
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static DEVICE_ATTR_RW(max_power);
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static DEVICE_ATTR_RO(pci_addr);
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static DEVICE_ATTR_RO(preboot_btl_ver);
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static DEVICE_ATTR_WO(soft_reset);
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static DEVICE_ATTR_RO(soft_reset_cnt);
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static DEVICE_ATTR_RO(status);
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static DEVICE_ATTR_RO(thermal_ver);
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static DEVICE_ATTR_RO(uboot_ver);
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static struct bin_attribute bin_attr_eeprom = {
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.attr = {.name = "eeprom", .mode = (0444)},
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.size = PAGE_SIZE,
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.read = eeprom_read_handler
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};
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static struct attribute *hl_dev_attrs[] = {
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&dev_attr_armcp_kernel_ver.attr,
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&dev_attr_armcp_ver.attr,
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&dev_attr_cpld_ver.attr,
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&dev_attr_device_type.attr,
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&dev_attr_fuse_ver.attr,
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&dev_attr_hard_reset.attr,
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&dev_attr_hard_reset_cnt.attr,
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&dev_attr_infineon_ver.attr,
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&dev_attr_max_power.attr,
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&dev_attr_pci_addr.attr,
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&dev_attr_preboot_btl_ver.attr,
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&dev_attr_soft_reset.attr,
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&dev_attr_soft_reset_cnt.attr,
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&dev_attr_status.attr,
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&dev_attr_thermal_ver.attr,
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&dev_attr_uboot_ver.attr,
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NULL,
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};
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static struct bin_attribute *hl_dev_bin_attrs[] = {
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&bin_attr_eeprom,
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NULL
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};
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static struct attribute_group hl_dev_attr_group = {
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.attrs = hl_dev_attrs,
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.bin_attrs = hl_dev_bin_attrs,
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};
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static struct attribute_group hl_dev_clks_attr_group;
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static const struct attribute_group *hl_dev_attr_groups[] = {
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&hl_dev_attr_group,
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&hl_dev_clks_attr_group,
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NULL,
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};
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int hl_sysfs_init(struct hl_device *hdev)
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{
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int rc;
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if (hdev->asic_type == ASIC_GOYA)
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hdev->pm_mng_profile = PM_AUTO;
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else
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hdev->pm_mng_profile = PM_MANUAL;
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hdev->max_power = hdev->asic_prop.max_power_default;
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hdev->asic_funcs->add_device_attr(hdev, &hl_dev_clks_attr_group);
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rc = device_add_groups(hdev->dev, hl_dev_attr_groups);
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if (rc) {
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dev_err(hdev->dev,
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"Failed to add groups to device, error %d\n", rc);
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return rc;
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}
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return 0;
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}
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void hl_sysfs_fini(struct hl_device *hdev)
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{
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device_remove_groups(hdev->dev, hl_dev_attr_groups);
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}
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