| /Linux-v6.1/include/linux/ |
| D | hwspinlock.h | 16 /* hwspinlock mode argument */
24 struct hwspinlock;
29 * struct hwspinlock_pdata - platform data for hwspinlock drivers
30 * @base_id: base id for this hwspinlock device
32 * hwspinlock devices provide system-wide hardware locks that are used
39 * Usually boards have a single hwspinlock device, which provides several
44 * should be used for each hwspinlock device (they can't all use 0 as
48 * for each device (which is trivially 0 when only a single hwspinlock
61 struct hwspinlock *hwspin_lock_request(void);
62 struct hwspinlock *hwspin_lock_request_specific(unsigned int id);
[all …]
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| /Linux-v6.1/Documentation/locking/ |
| D | hwspinlock.rst | 17 A generic hwspinlock framework allows platform-independent drivers to use
18 the hwspinlock device in order to access data structures that are shared
31 the remote processors, and access to it is synchronized using the hwspinlock
35 A common hwspinlock interface makes it possible to have generic, platform-
43 struct hwspinlock *hwspin_lock_request(void);
45 Dynamically assign an hwspinlock and return its address, or NULL
46 in case an unused hwspinlock isn't available. Users of this
54 struct hwspinlock *hwspin_lock_request_specific(unsigned int id);
56 Assign a specific hwspinlock id and return its address, or NULL
57 if that hwspinlock is already in use. Usually board code will
[all …]
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| D | index.rst | 23 hwspinlock
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| /Linux-v6.1/drivers/hwspinlock/ |
| D | hwspinlock_core.c | 20 #include <linux/hwspinlock.h>
31 #define HWSPINLOCK_UNUSED (0) /* tags an hwspinlock as unused */
34 * A radix tree is used to maintain the available hwspinlock instances.
35 * The tree associates hwspinlock pointers with their integer key id,
36 * and provides easy-to-use API which makes the hwspinlock core code simple
42 * used as the ID's of the hwspinlock instances).
45 * framework uses to mark unused hwspinlock instances (see the
47 * tree, looking for an unused hwspinlock instance, is now reduced to a
61 * __hwspin_trylock() - attempt to lock a specific hwspinlock
62 * @hwlock: an hwspinlock which we want to trylock
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| D | hwspinlock_internal.h | 19 * struct hwspinlock_ops - platform-specific hwspinlock handlers
24 * @relax: optional, platform-specific relax handler, called by hwspinlock
29 int (*trylock)(struct hwspinlock *lock);
30 void (*unlock)(struct hwspinlock *lock);
31 void (*relax)(struct hwspinlock *lock);
35 * struct hwspinlock - this struct represents a single hwspinlock instance
37 * @lock: initialized and used by hwspinlock core
38 * @priv: private data, owned by the underlying platform-specific hwspinlock drv
40 struct hwspinlock { struct
49 * @ops: platform-specific hwspinlock handlers argument
[all …]
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| D | sprd_hwspinlock.c | 10 #include <linux/hwspinlock.h>
20 /* hwspinlock registers definition */
30 /* hwspinlock number */
40 static int sprd_hwspinlock_trylock(struct hwspinlock *lock) in sprd_hwspinlock_trylock()
54 "hwspinlock [%d] lock failed and master/user id = %d!\n", in sprd_hwspinlock_trylock()
60 static void sprd_hwspinlock_unlock(struct hwspinlock *lock) in sprd_hwspinlock_unlock()
68 static void sprd_hwspinlock_relax(struct hwspinlock *lock) in sprd_hwspinlock_relax()
89 struct hwspinlock *lock; in sprd_hwspinlock_probe()
107 dev_err(&pdev->dev, "get hwspinlock clock failed!\n"); in sprd_hwspinlock_probe()
119 "Failed to add hwspinlock disable action\n"); in sprd_hwspinlock_probe()
[all …]
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| D | omap_hwspinlock.c | 22 #include <linux/hwspinlock.h>
38 static int omap_hwspinlock_trylock(struct hwspinlock *lock) in omap_hwspinlock_trylock()
46 static void omap_hwspinlock_unlock(struct hwspinlock *lock) in omap_hwspinlock_unlock()
64 static void omap_hwspinlock_relax(struct hwspinlock *lock) in omap_hwspinlock_relax()
79 struct hwspinlock *hwlock; in omap_hwspinlock_probe()
82 /* Only a single hwspinlock block device is supported */ in omap_hwspinlock_probe()
138 dev_dbg(&pdev->dev, "Registered %d locks with HwSpinlock core\n", in omap_hwspinlock_probe()
165 { .compatible = "ti,omap4-hwspinlock", },
166 { .compatible = "ti,am64-hwspinlock", },
167 { .compatible = "ti,am654-hwspinlock", },
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| D | sun6i_hwspinlock.c | 10 #include <linux/hwspinlock.h>
24 #define SPINLOCK_BASE_ID 0 /* there is only one hwspinlock device per SoC */
63 static int sun6i_hwspinlock_trylock(struct hwspinlock *lock) in sun6i_hwspinlock_trylock()
70 static void sun6i_hwspinlock_unlock(struct hwspinlock *lock) in sun6i_hwspinlock_unlock()
94 struct hwspinlock *hwlock; in sun6i_hwspinlock_probe()
132 * bit 28 and 29 represents the hwspinlock setup in sun6i_hwspinlock_probe()
153 dev_err(&pdev->dev, "unsupported hwspinlock setup (%d)\n", num_banks); in sun6i_hwspinlock_probe()
176 dev_err(&pdev->dev, "failed to add hwspinlock disable action\n"); in sun6i_hwspinlock_probe()
194 { .compatible = "allwinner,sun6i-a31-hwspinlock", },
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| D | stm32_hwspinlock.c | 9 #include <linux/hwspinlock.h>
28 static int stm32_hwspinlock_trylock(struct hwspinlock *lock) in stm32_hwspinlock_trylock()
39 static void stm32_hwspinlock_unlock(struct hwspinlock *lock) in stm32_hwspinlock_unlock()
46 static void stm32_hwspinlock_relax(struct hwspinlock *lock) in stm32_hwspinlock_relax()
116 dev_err(dev, "Failed to register hwspinlock\n"); in stm32_hwspinlock_probe()
146 { .compatible = "st,stm32-hwspinlock", },
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| D | Kconfig | 3 # Generic HWSPINLOCK framework
6 menuconfig HWSPINLOCK config
9 if HWSPINLOCK
66 endif # HWSPINLOCK
|
| D | u8500_hsem.c | 21 #include <linux/hwspinlock.h>
50 static int u8500_hsem_trylock(struct hwspinlock *lock) in u8500_hsem_trylock()
63 static void u8500_hsem_unlock(struct hwspinlock *lock) in u8500_hsem_unlock()
74 static void u8500_hsem_relax(struct hwspinlock *lock) in u8500_hsem_relax()
89 struct hwspinlock *hwlock; in u8500_hsem_probe()
|
| D | qcom_hwspinlock.c | 7 #include <linux/hwspinlock.h>
28 static int qcom_hwspinlock_trylock(struct hwspinlock *lock) in qcom_hwspinlock_trylock()
45 static void qcom_hwspinlock_unlock(struct hwspinlock *lock) in qcom_hwspinlock_unlock()
186 array_size = QCOM_MUTEX_NUM_LOCKS * sizeof(struct hwspinlock); in qcom_hwspinlock_probe()
|
| /Linux-v6.1/Documentation/devicetree/bindings/hwlock/ |
| D | ti,omap-hwspinlock.yaml | 4 $id: http://devicetree.org/schemas/hwlock/ti,omap-hwspinlock.yaml#
7 title: TI HwSpinlock for OMAP and K3 based SoCs
15 - ti,omap4-hwspinlock # for OMAP44xx, OMAP54xx, AM33xx, AM43xx, DRA7xx SoCs
16 - ti,am64-hwspinlock # for K3 AM64x SoCs
17 - ti,am654-hwspinlock # for K3 AM65x, J721E and J7200 SoCs
25 The OMAP hwspinlock users will use a 0-indexed relative hwlock number as
26 the argument specifier value for requesting a specific hwspinlock within
27 a hwspinlock bank.
43 compatible = "ti,omap4-hwspinlock";
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| D | sprd-hwspinlock.txt | 5 - compatible : should be "sprd,hwspinlock-r3p0".
6 - reg : the register address of hwspinlock.
17 hwspinlock@40500000 {
18 compatible = "sprd,hwspinlock-r3p0";
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| D | st,stm32-hwspinlock.yaml | 4 $id: http://devicetree.org/schemas/hwlock/st,stm32-hwspinlock.yaml#
17 const: st,stm32-hwspinlock
41 hwspinlock@4c000000 {
42 compatible = "st,stm32-hwspinlock";
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| D | allwinner,sun6i-a31-hwspinlock.yaml | 4 $id: http://devicetree.org/schemas/hwlock/allwinner,sun6i-a31-hwspinlock.yaml#
18 const: allwinner,sun6i-a31-hwspinlock
43 compatible = "allwinner,sun6i-a31-hwspinlock";
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| D | qcom-hwspinlock.yaml | 4 $id: http://devicetree.org/schemas/hwlock/qcom-hwspinlock.yaml#
|
| /Linux-v6.1/drivers/nvmem/ |
| D | sc27xx-efuse.c | 4 #include <linux/hwspinlock.h>
65 struct hwspinlock *hwlock;
93 dev_err(efuse->dev, "timeout to get the hwspinlock\n"); in sc27xx_efuse_lock()
229 dev_err(&pdev->dev, "failed to get hwspinlock id\n"); in sc27xx_efuse_probe()
235 dev_err(&pdev->dev, "failed to request hwspinlock\n"); in sc27xx_efuse_probe()
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| D | sprd-efuse.c | 6 #include <linux/hwspinlock.h>
66 struct hwspinlock *hwlock;
92 dev_err(efuse->dev, "timeout get the hwspinlock\n"); in sprd_efuse_lock()
|
| /Linux-v6.1/drivers/irqchip/ |
| D | irq-stm32-exti.c | 10 #include <linux/hwspinlock.h>
62 struct hwspinlock *hwlock;
347 struct hwspinlock *hwlock = chip_data->host_data->hwlock; in stm32_irq_set_type()
356 pr_err("%s can't get hwspinlock (%d)\n", __func__, err); in stm32_irq_set_type()
549 struct hwspinlock *hwlock = chip_data->host_data->hwlock; in stm32_exti_h_set_type()
559 pr_err("%s can't get hwspinlock (%d)\n", __func__, err); in stm32_exti_h_set_type()
905 /* check for optional hwspinlock which may be not available yet */ in stm32_exti_probe()
908 /* hwspinlock framework not yet ready */ in stm32_exti_probe()
914 dev_err(dev, "Failed to request hwspinlock\n"); in stm32_exti_probe()
918 /* note: ENOENT is a valid case (means 'no hwspinlock') */ in stm32_exti_probe()
[all …]
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| /Linux-v6.1/Documentation/translations/zh_CN/locking/ |
| D | index.rst | 33 * hwspinlock
|
| /Linux-v6.1/drivers/iio/adc/ |
| D | sc27xx_adc.c | 4 #include <linux/hwspinlock.h>
90 struct hwspinlock *hwlock;
490 dev_err(data->dev, "timeout to get the hwspinlock\n"); in sc27xx_adc_read()
898 dev_err(dev, "failed to get hwspinlock id\n"); in sc27xx_adc_probe()
904 dev_err(dev, "failed to request hwspinlock\n"); in sc27xx_adc_probe()
|
| /Linux-v6.1/drivers/pinctrl/stm32/ |
| D | pinctrl-stm32.c | 11 #include <linux/hwspinlock.h>
115 struct hwspinlock *hwlock;
447 dev_err(pctl->dev, "Can't get hwspinlock\n"); in stm32_gpio_domain_activate()
783 dev_err(pctl->dev, "Can't get hwspinlock\n"); in stm32_pmx_set_mode()
916 dev_err(pctl->dev, "Can't get hwspinlock\n"); in stm32_pconf_set_driving()
967 dev_err(pctl->dev, "Can't get hwspinlock\n"); in stm32_pconf_set_speed()
1018 dev_err(pctl->dev, "Can't get hwspinlock\n"); in stm32_pconf_set_bias()
1518 /* hwspinlock is optional */ in stm32_pctl_probe()
|
| /Linux-v6.1/arch/arm64/boot/dts/sprd/ |
| D | whale2.dtsi | 193 hwlock: hwspinlock@40500000 {
194 compatible = "sprd,hwspinlock-r3p0";
|
| /Linux-v6.1/drivers/ |
| D | Kconfig | 160 source "drivers/hwspinlock/Kconfig"
|
