^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * IBM Accelerator Family 'GenWQE'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * (C) Copyright IBM Corp. 2013
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author: Frank Haverkamp <haver@linux.vnet.ibm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Author: Michael Jung <mijung@gmx.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Author: Michael Ruettger <michael@ibmra.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * Sysfs interfaces for the GenWQE card. There are attributes to query
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * the version of the bitstream as well as some for the driver. For
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * debugging, please also see the debugfs interfaces of this driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/pci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/sysfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/ctype.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include "card_base.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include "card_ddcb.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static const char * const genwqe_types[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) [GENWQE_TYPE_ALTERA_230] = "GenWQE4-230",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) [GENWQE_TYPE_ALTERA_530] = "GenWQE4-530",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) [GENWQE_TYPE_ALTERA_A4] = "GenWQE5-A4",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) [GENWQE_TYPE_ALTERA_A7] = "GenWQE5-A7",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static ssize_t status_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) struct genwqe_dev *cd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) const char *cs[GENWQE_CARD_STATE_MAX] = { "unused", "used", "error" };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) return sprintf(buf, "%s\n", cs[cd->card_state]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) static DEVICE_ATTR_RO(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static ssize_t appid_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) char app_name[5];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) struct genwqe_dev *cd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) genwqe_read_app_id(cd, app_name, sizeof(app_name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) return sprintf(buf, "%s\n", app_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) static DEVICE_ATTR_RO(appid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static ssize_t version_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) u64 slu_id, app_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct genwqe_dev *cd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) slu_id = __genwqe_readq(cd, IO_SLU_UNITCFG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) app_id = __genwqe_readq(cd, IO_APP_UNITCFG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) return sprintf(buf, "%016llx.%016llx\n", slu_id, app_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) static DEVICE_ATTR_RO(version);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) static ssize_t type_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) u8 card_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct genwqe_dev *cd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) card_type = genwqe_card_type(cd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) return sprintf(buf, "%s\n", (card_type >= ARRAY_SIZE(genwqe_types)) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) "invalid" : genwqe_types[card_type]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) static DEVICE_ATTR_RO(type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) static ssize_t tempsens_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) u64 tempsens;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct genwqe_dev *cd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) tempsens = __genwqe_readq(cd, IO_SLU_TEMPERATURE_SENSOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) return sprintf(buf, "%016llx\n", tempsens);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) static DEVICE_ATTR_RO(tempsens);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) static ssize_t freerunning_timer_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) u64 t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct genwqe_dev *cd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) t = __genwqe_readq(cd, IO_SLC_FREE_RUNNING_TIMER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) return sprintf(buf, "%016llx\n", t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) static DEVICE_ATTR_RO(freerunning_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) static ssize_t queue_working_time_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) u64 t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) struct genwqe_dev *cd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) t = __genwqe_readq(cd, IO_SLC_QUEUE_WTIME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) return sprintf(buf, "%016llx\n", t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) static DEVICE_ATTR_RO(queue_working_time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) static ssize_t base_clock_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) u64 base_clock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) struct genwqe_dev *cd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) base_clock = genwqe_base_clock_frequency(cd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) return sprintf(buf, "%lld\n", base_clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) static DEVICE_ATTR_RO(base_clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) * curr_bitstream_show() - Show the current bitstream id
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) * There is a bug in some old versions of the CPLD which selects the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) * bitstream, which causes the IO_SLU_BITSTREAM register to report
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) * unreliable data in very rare cases. This makes this sysfs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) * unreliable up to the point were a new CPLD version is being used.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) * Unfortunately there is no automatic way yet to query the CPLD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) * version, such that you need to manually ensure via programming
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) * tools that you have a recent version of the CPLD software.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) * The proposed circumvention is to use a special recovery bitstream
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) * on the backup partition (0) to identify problems while loading the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) * image.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) static ssize_t curr_bitstream_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) int curr_bitstream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) struct genwqe_dev *cd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) curr_bitstream = __genwqe_readq(cd, IO_SLU_BITSTREAM) & 0x1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) return sprintf(buf, "%d\n", curr_bitstream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) static DEVICE_ATTR_RO(curr_bitstream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) * next_bitstream_show() - Show the next activated bitstream
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) * IO_SLC_CFGREG_SOFTRESET: This register can only be accessed by the PF.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) static ssize_t next_bitstream_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) int next_bitstream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) struct genwqe_dev *cd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) switch ((cd->softreset & 0xc) >> 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) case 0x2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) next_bitstream = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) case 0x3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) next_bitstream = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) next_bitstream = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) break; /* error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) return sprintf(buf, "%d\n", next_bitstream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) static ssize_t next_bitstream_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) int partition;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) struct genwqe_dev *cd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) if (kstrtoint(buf, 0, &partition) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) switch (partition) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) case 0x0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) cd->softreset = 0x78;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) case 0x1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) cd->softreset = 0x7c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) __genwqe_writeq(cd, IO_SLC_CFGREG_SOFTRESET, cd->softreset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) static DEVICE_ATTR_RW(next_bitstream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) static ssize_t reload_bitstream_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) int reload;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) struct genwqe_dev *cd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) if (kstrtoint(buf, 0, &reload) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) if (reload == 0x1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) if (cd->card_state == GENWQE_CARD_UNUSED ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) cd->card_state == GENWQE_CARD_USED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) cd->card_state = GENWQE_CARD_RELOAD_BITSTREAM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) static DEVICE_ATTR_WO(reload_bitstream);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) * Create device_attribute structures / params: name, mode, show, store
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) * additional flag if valid in VF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) static struct attribute *genwqe_attributes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) &dev_attr_tempsens.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) &dev_attr_next_bitstream.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) &dev_attr_curr_bitstream.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) &dev_attr_base_clock.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) &dev_attr_type.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) &dev_attr_version.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) &dev_attr_appid.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) &dev_attr_status.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) &dev_attr_freerunning_timer.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) &dev_attr_queue_working_time.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) &dev_attr_reload_bitstream.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) static struct attribute *genwqe_normal_attributes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) &dev_attr_type.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) &dev_attr_version.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) &dev_attr_appid.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) &dev_attr_status.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) &dev_attr_freerunning_timer.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) &dev_attr_queue_working_time.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) * genwqe_is_visible() - Determine if sysfs attribute should be visible or not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) * VFs have restricted mmio capabilities, so not all sysfs entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) * are allowed in VFs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) static umode_t genwqe_is_visible(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) struct attribute *attr, int n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) unsigned int j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) struct device *dev = kobj_to_dev(kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) struct genwqe_dev *cd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) umode_t mode = attr->mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) if (genwqe_is_privileged(cd))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) return mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) for (j = 0; genwqe_normal_attributes[j] != NULL; j++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) if (genwqe_normal_attributes[j] == attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) return mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) static struct attribute_group genwqe_attribute_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) .is_visible = genwqe_is_visible,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) .attrs = genwqe_attributes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) const struct attribute_group *genwqe_attribute_groups[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) &genwqe_attribute_group,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) };
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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