| /linux/drivers/mtd/spi-nor/ |
| H A D | Kconfig | 28 prompt "Software write protection at boot"
34 This option disables the software write protection on any SPI
37 Depending on the flash chip this either clears the block protection
40 Don't use this if you intent to use the software write protection
44 bool "Disable SWP on flashes w/ volatile protection bits"
46 Some SPI flashes have volatile block protection bits, ie. after a
50 This option disables the software write protection for these kind
52 which have non-volatile write protection bits.
54 If the software write protection will be disabled depending on
55 the flash either the block protection bits are cleared or a
[all …]
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| H A D | swp.c | 3 * SPI NOR Software Write Protection logic.
70 /* No protection */ in spi_nor_get_locked_range_sr()
127 * Supports the block protection bits BP{0,1,2}/BP{0,1,2,3} in the status
180 /* If anything below us is unlocked, we can't use 'bottom' protection */ in spi_nor_sr_lock()
184 /* If anything above us is unlocked, we can't use 'top' protection */ in spi_nor_sr_lock()
236 /* Only modify protection if it will not unlock other areas */ in spi_nor_sr_lock()
270 /* If anything below us is locked, we can't use 'top' protection */ in spi_nor_sr_unlock()
274 /* If anything above us is locked, we can't use 'bottom' protection */ in spi_nor_sr_unlock()
319 /* Only modify protection if it will not lock other areas */ in spi_nor_sr_unlock()
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| /linux/mm/ |
| H A D | page_counter.c | 79 bool protection = track_protection(counter); in page_counter_charge() local
85 if (protection) in page_counter_charge()
123 bool protection = track_protection(counter); in page_counter_try_charge() local
153 if (protection) in page_counter_try_charge()
294 * protection which is derived from its own memory.min/low, its
298 * The following rules apply to the effective protection values:
300 * 1. At the first level of reclaim, effective protection is equal to
301 * the declared protection in memory.min and memory.low.
303 * 2. To enable safe delegation of the protection configuration, at
304 * subsequent levels the effective protection is capped to the
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| /linux/Documentation/ABI/testing/ |
| H A D | sysfs-devices-platform-docg3 | 6 Show whether the floor (0 to 4), protection area (0 or 1) is
7 keylocked. Each docg3 chip (or floor) has 2 protection areas,
9 The protection has information embedded whether it blocks reads,
23 Enter the protection key for the floor (0 to 4), protection area
24 (0 or 1). Each docg3 chip (or floor) has 2 protection areas,
26 The protection has information embedded whether it blocks reads,
28 The protection key is a string of 8 bytes (value 0-255).
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| /linux/drivers/platform/x86/ |
| H A D | toshiba_haps.c | 3 * Toshiba HDD Active Protection Sensor (HAPS) driver
17 MODULE_DESCRIPTION("Toshiba HDD Active Protection Sensor");
35 pr_err("Unable to reset the HDD protection\n"); in toshiba_haps_reset_protection()
48 pr_err("Error while setting the protection level\n"); in toshiba_haps_protection_level()
52 pr_debug("HDD protection level set to: %d\n", level); in toshiba_haps_protection_level()
110 /* Reset the protection interface */ in reset_protection_store()
161 pr_err("ACPI call to query HDD protection failed\n"); in toshiba_haps_available()
166 pr_info("HDD protection not available or using SSD\n"); in toshiba_haps_available()
184 pr_info("Toshiba HDD Active Protection Sensor device\n"); in toshiba_haps_add()
195 /* Set the protection level, currently at level 2 (Medium) */ in toshiba_haps_add()
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| /linux/tools/testing/selftests/kvm/s390x/ |
| H A D | tprot.c | 3 * Test TEST PROTECTION emulation.
79 * We perform each test in the array by executing TEST PROTECTION on
85 * TEST PROTECTION instruction.
91 * See Enhanced Suppression-on-Protection Facilities in the
97 * protection for it
105 /* mismatched keys, but no fetch protection -> RO */
111 /* mismatched keys, fetch protection -> inaccessible */
117 * guest: set storage key of page 0 to 9 and enable fetch protection
120 * enable fetch protection override
122 /* mismatched keys, fetch protection, but override applies -> RO */
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| /linux/Documentation/devicetree/bindings/regulator/ |
| H A D | regulator.yaml | 122 regulator-over-current-protection:
123 description: Enable over current protection.
126 regulator-oc-protection-microamp:
127 description: Set over current protection limit. This is a limit where
129 protection and value '1' indicates that protection should be enabled but
145 regulator-ov-protection-microvolt:
146 description: Set over voltage protection limit. This is a limit where
148 protection and value '1' indicates that protection should be enabled but
167 regulator-uv-protection-microvolt:
168 description: Set over under voltage protection limit. This is a limit where
[all …]
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| /linux/Documentation/admin-guide/laptops/ |
| H A D | toshiba_haps.rst | 2 Toshiba HDD Active Protection Sensor
23 laptops, being called "Toshiba HDD Protection - Shock Sensor" officially,
26 automatic HDD protection (head unload) on sudden moves or harsh vibrations,
29 file to set the desired protection level or sensor sensibility.
40 PTLV Sets the desired protection level.
41 RSSS Shuts down the HDD protection interface for a few seconds,
48 any "protection" as well as failing during the evaluation of the _STA method
76 provides a way to let userspace query the current protection
77 level, as well as set the desired protection level, the
78 available protection levels are::
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| H A D | disk-shock-protection.rst | 2 Hard disk shock protection
25 a shock protection facility. The idea is to stop all I/O operations on
31 system in order to get disk shock protection working (see
128 protection capabilities. As manufacturers have refused to support open
130 support for shock protection varies considerably between different
133 protection on different systems. Unfortunately, I only know of a
141 active protection system as implemented in IBM/Lenovo Thinkpads.
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| /linux/Documentation/core-api/ |
| H A D | protection-keys.rst | 4 Memory Protection Keys
7 Memory Protection Keys provide a mechanism for enforcing page-based
9 application changes protection domains.
20 a "protection key", giving 16 possible keys.
37 Pkeys use 3 bits in each page table entry, to encode a "protection key index",
42 overlay permissions for each protection key index.
47 Unlike x86_64, the protection key permissions also apply to instruction
92 The kernel attempts to make protection keys consistent with the
98 you can expect the same effects with protection keys when doing this::
115 to SEGV_PKERR when violating protection keys versus SEGV_ACCERR when
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| /linux/arch/s390/include/asm/ |
| H A D | dat-bits.h | 40 unsigned long p : 1; /* DAT-Protection Bit */
55 unsigned long p : 1; /* DAT-Protection Bit */
69 unsigned long p : 1; /* DAT-Protection Bit */
83 unsigned long f : 1; /* Fetch-Protection Bit */
85 unsigned long p : 1; /* DAT-Protection Bit */
86 unsigned long iep : 1; /* Instruction-Execution-Protection */
112 unsigned long p : 1; /* DAT-Protection Bit */
125 unsigned long f : 1; /* Fetch-Protection Bit */
127 unsigned long p : 1; /* DAT-Protection Bit */
128 unsigned long iep : 1; /* Instruction-Execution-Protection */
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| /linux/drivers/soc/mediatek/ |
| H A D | mtk-infracfg.c | 17 * mtk_infracfg_set_bus_protection - enable bus protection
19 * @mask: The mask containing the protection bits to be enabled.
20 * @reg_update: The boolean flag determines to set the protection bits
24 * This function enables the bus protection bits for disabled power
48 * mtk_infracfg_clear_bus_protection - disable bus protection
50 * @mask: The mask containing the protection bits to be disabled.
51 * @reg_update: The boolean flag determines to clear the protection bits
55 * This function disables the bus protection bits previously enabled with
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| /linux/Documentation/block/ |
| H A D | data-integrity.rst | 16 protocols (SBC Data Integrity Field, SCC protection proposal) as well
17 as SATA/T13 (External Path Protection) try to remedy this by adding
19 metadata (or protection information in SCSI terminology) includes a
22 for some protection schemes also that the I/O is written to the right
29 DIF and the other integrity extensions is that the protection format
42 the protection information to be transferred to and from their
45 The SCSI Data Integrity Field works by appending 8 bytes of protection
85 The data integrity framework in Linux enables protection information
92 disadvantage. It means that the protection information must be in a
101 protection information to send to a disk. Consequently, the very
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| /linux/drivers/accel/habanalabs/common/ |
| H A D | security.h | 62 * of IP block which has protection bits.
65 * @prot_map: each bit corresponds to one among 32 protection configuration regs
67 * to be written into the corresponding protection configuration reg.
69 * @data_map: each bit corresponds to one among 32 protection configuration regs
70 * (e.g., SPECIAL_GLBL_PRIV). '1' means corresponding protection
74 * to corresponding protection configuration reg(s).
78 * protection configuration registers e.g., SPECIAL GLBL PRIV regs (starting at
79 * offset 0xE80). '1' in 'data_map' means protection configuration to be done
80 * using configuration in data array. '0' in 'data_map" means protection
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| /linux/drivers/net/wireless/intel/iwlwifi/mvm/ |
| H A D | time-event.h | 62 * iwl_mvm_protect_session - start / extend the session protection.
72 * This function can be used to start a session protection which means that the
85 * iwl_mvm_stop_session_protection - cancel the session protection.
89 * This functions cancels the session protection which is an act of good
203 * iwl_mvm_schedule_session_protection - schedule a session protection
205 * @vif: the virtual interface for which the protection issued
206 * @duration: the requested duration of the protection
207 * @min_duration: the minimum duration of the protection
208 * @wait_for_notif: if true, will block until the start of the protection
209 * @link_id: The link to schedule a session protection for
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| /linux/tools/testing/selftests/cgroup/ |
| H A D | memcg_protection.m | 5 % This script simulates reclaim protection behavior on a single level of memcg
6 % hierarchy to illustrate how overcommitted protection spreads among siblings
15 % E number parent effective protection
16 % n vector nominal protection of siblings set at the given level (memory.low)
54 % recursive protection
65 % commit 1bc63fb1272b ("mm, memcg: make scan aggression always exclude protection")
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| /linux/drivers/mtd/maps/ |
| H A D | physmap-versatile.c | 65 * Flash protection handling for the Integrator/AP
100 /* Clear VPP and write protection bits */ in ap_flash_init()
142 * Flash protection handling for the Integrator/CP
172 * Flash protection handling for the Versatiles and RealViews
197 /* Not all flash chips use this protection line */ in of_flash_probe_versatile()
224 dev_info(&pdev->dev, "Integrator/AP flash protection\n"); in of_flash_probe_versatile()
228 dev_info(&pdev->dev, "Integrator/CP flash protection\n"); in of_flash_probe_versatile()
233 dev_info(&pdev->dev, "versatile/realview flash protection\n"); in of_flash_probe_versatile()
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| /linux/Documentation/hwmon/ |
| H A D | mpq8785.rst | 32 Fully integrated protection features include over-current protection (OCP),
33 over-voltage protection (OVP), under-voltage protection (UVP), and
34 over-temperature protection (OTP).
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| /linux/drivers/gpu/drm/display/ |
| H A D | drm_hdcp_helper.c | 326 * drm_connector_attach_content_protection_property - attach content protection in DRM_ENUM_NAME_FN()
332 * This is used to add support for content protection on select connectors. in DRM_ENUM_NAME_FN()
333 * Content Protection is intentionally vague to allow for different underlying in DRM_ENUM_NAME_FN()
346 * The content protection will be set to &drm_connector_state.content_protection in DRM_ENUM_NAME_FN()
348 * When kernel triggered content protection state change like DESIRED->ENABLED in DRM_ENUM_NAME_FN()
350 * the content protection state of a connector. in DRM_ENUM_NAME_FN()
363 prop = drm_property_create_enum(dev, 0, "Content Protection", in DRM_ENUM_NAME_FN()
394 * drm_hdcp_update_content_protection - Updates the content protection state
397 * @connector: drm_connector on which content protection state needs an update
398 * @val: New state of the content protection property
[all …]
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| /linux/Documentation/devicetree/bindings/mfd/ |
| H A D | rohm,bd96801-pmic.yaml | 102 regulator-temp-protection-kelvin = <1>;
113 regulator-temp-protection-kelvin = <1>;
124 regulator-temp-protection-kelvin = <1>;
135 regulator-temp-protection-kelvin = <1>;
146 regulator-temp-protection-kelvin = <1>;
157 regulator-temp-protection-kelvin = <1>;
168 regulator-temp-protection-kelvin = <1>;
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| /linux/drivers/net/wireless/intel/iwlwifi/fw/api/ |
| H A D | time-event.h | 398 * enum iwl_mvm_session_prot_conf_id - session protection's configurations
399 * @SESSION_PROTECT_CONF_ASSOC: Start a session protection for association.
415 * Only the duration is configurable for this protection.
436 * struct iwl_mvm_session_prot_cmd - configure a session protection
438 * for which this session protection is sent
442 * @duration_tu: the duration of the whole protection in TUs.
446 * Note: the session protection will always be scheduled to start as
448 * The firmware supports only one concurrent session protection per vif.
449 * Adding a new session protection will remove any currently running session.
465 * struct iwl_mvm_session_prot_notif - session protection started / ended
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| /linux/drivers/mtd/chips/ |
| H A D | Kconfig | 156 bool "Protection Registers aka one-time programmable (OTP) bits"
161 "Protection Registers" present on some flash chips.
165 The user-programmable Protection Registers contain one-time
167 erased. Each Protection Register can be accessed multiple times to
170 Each Protection Register has an associated Lock Register bit. When a
171 Lock Register bit is programmed, the associated Protection Register
174 Lock Register bits cannot be erased. Therefore, when a Protection
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| /linux/include/dt-bindings/dma/ |
| H A D | dw-dmac.h | 7 * Protection Control bits provide protection against illegal transactions.
8 * The protection bits[0:2] are one-to-one mapped to AHB HPROT[3:1] signals.
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| /linux/Documentation/ABI/removed/ |
| H A D | sysfs-selinux-checkreqprot | 11 to check the protection requested by userspace for mmap/mprotect
12 calls instead of the actual protection applied by the kernel.
18 actual protection), and Android and Linux distributions have been
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| /linux/include/linux/mfd/ |
| H A D | rohm-bd957x.h | 19 * - Over voltage protection
20 * - Short-circuit protection
21 * - Over current protection
24 * - Under voltage protection
|