diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/dma-buf.h | 22 | ||||
| -rw-r--r-- | include/linux/dma-fence-array.h | 2 | ||||
| -rw-r--r-- | include/linux/hdmi.h | 1 | ||||
| -rw-r--r-- | include/linux/of_platform.h | 11 | ||||
| -rw-r--r-- | include/linux/pci.h | 23 | ||||
| -rw-r--r-- | include/linux/reservation.h | 20 |
6 files changed, 68 insertions, 11 deletions
diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h index bfb3704fc6fc..79f27d60ec66 100644 --- a/include/linux/dma-buf.h +++ b/include/linux/dma-buf.h @@ -39,13 +39,13 @@ struct dma_buf_attachment; /** * struct dma_buf_ops - operations possible on struct dma_buf - * @kmap_atomic: maps a page from the buffer into kernel address - * space, users may not block until the subsequent unmap call. - * This callback must not sleep. - * @kunmap_atomic: [optional] unmaps a atomically mapped page from the buffer. - * This Callback must not sleep. - * @kmap: maps a page from the buffer into kernel address space. - * @kunmap: [optional] unmaps a page from the buffer. + * @map_atomic: maps a page from the buffer into kernel address + * space, users may not block until the subsequent unmap call. + * This callback must not sleep. + * @unmap_atomic: [optional] unmaps a atomically mapped page from the buffer. + * This Callback must not sleep. + * @map: maps a page from the buffer into kernel address space. + * @unmap: [optional] unmaps a page from the buffer. * @vmap: [optional] creates a virtual mapping for the buffer into kernel * address space. Same restrictions as for vmap and friends apply. * @vunmap: [optional] unmaps a vmap from the buffer @@ -206,10 +206,10 @@ struct dma_buf_ops { * to be restarted. */ int (*end_cpu_access)(struct dma_buf *, enum dma_data_direction); - void *(*kmap_atomic)(struct dma_buf *, unsigned long); - void (*kunmap_atomic)(struct dma_buf *, unsigned long, void *); - void *(*kmap)(struct dma_buf *, unsigned long); - void (*kunmap)(struct dma_buf *, unsigned long, void *); + void *(*map_atomic)(struct dma_buf *, unsigned long); + void (*unmap_atomic)(struct dma_buf *, unsigned long, void *); + void *(*map)(struct dma_buf *, unsigned long); + void (*unmap)(struct dma_buf *, unsigned long, void *); /** * @mmap: diff --git a/include/linux/dma-fence-array.h b/include/linux/dma-fence-array.h index 5900945f962d..332a5420243c 100644 --- a/include/linux/dma-fence-array.h +++ b/include/linux/dma-fence-array.h @@ -83,4 +83,6 @@ struct dma_fence_array *dma_fence_array_create(int num_fences, u64 context, unsigned seqno, bool signal_on_any); +bool dma_fence_match_context(struct dma_fence *fence, u64 context); + #endif /* __LINUX_DMA_FENCE_ARRAY_H */ diff --git a/include/linux/hdmi.h b/include/linux/hdmi.h index edbb4fc674ed..d271ff23984f 100644 --- a/include/linux/hdmi.h +++ b/include/linux/hdmi.h @@ -35,6 +35,7 @@ enum hdmi_infoframe_type { }; #define HDMI_IEEE_OUI 0x000c03 +#define HDMI_FORUM_IEEE_OUI 0xc45dd8 #define HDMI_INFOFRAME_HEADER_SIZE 4 #define HDMI_AVI_INFOFRAME_SIZE 13 #define HDMI_SPD_INFOFRAME_SIZE 25 diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h index 956a1006aefc..dc8224ae28d5 100644 --- a/include/linux/of_platform.h +++ b/include/linux/of_platform.h @@ -76,6 +76,10 @@ extern int of_platform_default_populate(struct device_node *root, const struct of_dev_auxdata *lookup, struct device *parent); extern void of_platform_depopulate(struct device *parent); + +extern int devm_of_platform_populate(struct device *dev); + +extern void devm_of_platform_depopulate(struct device *dev); #else static inline int of_platform_populate(struct device_node *root, const struct of_device_id *matches, @@ -91,6 +95,13 @@ static inline int of_platform_default_populate(struct device_node *root, return -ENODEV; } static inline void of_platform_depopulate(struct device *parent) { } + +static inline int devm_of_platform_populate(struct device *dev) +{ + return -ENODEV; +} + +static inline void devm_of_platform_depopulate(struct device *dev) { } #endif #if defined(CONFIG_OF_DYNAMIC) && defined(CONFIG_OF_ADDRESS) diff --git a/include/linux/pci.h b/include/linux/pci.h index 82dec36845e6..f27be8432e82 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -358,6 +358,7 @@ struct pci_dev { unsigned int is_virtfn:1; unsigned int reset_fn:1; unsigned int is_hotplug_bridge:1; + unsigned int is_thunderbolt:1; /* Thunderbolt controller */ unsigned int __aer_firmware_first_valid:1; unsigned int __aer_firmware_first:1; unsigned int broken_intx_masking:1; @@ -2156,6 +2157,28 @@ static inline bool pci_ari_enabled(struct pci_bus *bus) return bus->self && bus->self->ari_enabled; } +/** + * pci_is_thunderbolt_attached - whether device is on a Thunderbolt daisy chain + * @pdev: PCI device to check + * + * Walk upwards from @pdev and check for each encountered bridge if it's part + * of a Thunderbolt controller. Reaching the host bridge means @pdev is not + * Thunderbolt-attached. (But rather soldered to the mainboard usually.) + */ +static inline bool pci_is_thunderbolt_attached(struct pci_dev *pdev) +{ + struct pci_dev *parent = pdev; + + if (pdev->is_thunderbolt) + return true; + + while ((parent = pci_upstream_bridge(parent))) + if (parent->is_thunderbolt) + return true; + + return false; +} + /* provide the legacy pci_dma_* API */ #include <linux/pci-dma-compat.h> diff --git a/include/linux/reservation.h b/include/linux/reservation.h index 2b5a4679daea..156cfd330b66 100644 --- a/include/linux/reservation.h +++ b/include/linux/reservation.h @@ -167,6 +167,26 @@ reservation_object_lock(struct reservation_object *obj, } /** + * reservation_object_trylock - trylock the reservation object + * @obj: the reservation object + * + * Tries to lock the reservation object for exclusive access and modification. + * Note, that the lock is only against other writers, readers will run + * concurrently with a writer under RCU. The seqlock is used to notify readers + * if they overlap with a writer. + * + * Also note that since no context is provided, no deadlock protection is + * possible. + * + * Returns true if the lock was acquired, false otherwise. + */ +static inline bool __must_check +reservation_object_trylock(struct reservation_object *obj) +{ + return ww_mutex_trylock(&obj->lock); +} + +/** * reservation_object_unlock - unlock the reservation object * @obj: the reservation object * |