/* * Internal Header for the Direct Rendering Manager * * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. * Copyright (c) 2009-2010, Code Aurora Forum. * All rights reserved. * * Author: Rickard E. (Rik) Faith <faith@valinux.com> * Author: Gareth Hughes <gareth@valinux.com> * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ #ifndef _DRM_P_H_#define _DRM_P_H_ #include <linux/agp_backend.h>#include <linux/cdev.h>#include <linux/dma-mapping.h>#include <linux/file.h>#include <linux/fs.h>#include <linux/highmem.h>#include <linux/idr.h>#include <linux/init.h>#include <linux/io.h>#include <linux/jiffies.h>#include <linux/kernel.h>#include <linux/kref.h>#include <linux/miscdevice.h>#include <linux/mm.h>#include <linux/mutex.h>#include <linux/platform_device.h>#include <linux/poll.h>#include <linux/ratelimit.h>#include <linux/sched.h>#include <linux/slab.h>#include <linux/types.h>#include <linux/vmalloc.h>#include <linux/workqueue.h>#include <linux/dma-fence.h>#include <linux/module.h> #include <asm/mman.h>#include <asm/pgalloc.h>#include <linux/uaccess.h> #include <uapi/drm/drm.h>#include <uapi/drm/drm_mode.h> #include <drm/drm_agpsupport.h>#include <drm/drm_crtc.h>#include <drm/drm_fourcc.h>#include <drm/drm_global.h>#include <drm/drm_hashtab.h>#include <drm/drm_mm.h>#include <drm/drm_os_linux.h>#include <drm/drm_sarea.h>#include <drm/drm_drv.h>#include <drm/drm_prime.h>#include <drm/drm_pci.h>#include <drm/drm_file.h>#include <drm/drm_debugfs.h>#include <drm/drm_ioctl.h>#include <drm/drm_sysfs.h>#include <drm/drm_vblank.h>#include <drm/drm_irq.h> struct module; struct drm_device;struct drm_agp_head;struct drm_local_map;struct drm_device_dma;struct drm_gem_object;struct drm_master;struct drm_vblank_crtc;struct drm_vma_offset_manager; struct device_node;struct videomode;struct reservation_object;struct dma_buf_attachment; struct pci_dev;struct pci_controller; /* * The following categories are defined: * * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ... * This is the category used by the DRM_DEBUG() macro. * * DRIVER: Used in the vendor specific part of the driver: i915, radeon, ... * This is the category used by the DRM_DEBUG_DRIVER() macro. * * KMS: used in the modesetting code. * This is the category used by the DRM_DEBUG_KMS() macro. * * PRIME: used in the prime code. * This is the category used by the DRM_DEBUG_PRIME() macro. * * ATOMIC: used in the atomic code. * This is the category used by the DRM_DEBUG_ATOMIC() macro. * * VBL: used for verbose debug message in the vblank code * This is the category used by the DRM_DEBUG_VBL() macro. * * Enabling verbose debug messages is done through the drm.debug parameter, * each category being enabled by a bit. * * drm.debug=0x1 will enable CORE messages * drm.debug=0x2 will enable DRIVER messages * drm.debug=0x3 will enable CORE and DRIVER messages * ... * drm.debug=0x3f will enable all messages * * An interesting feature is that it's possible to enable verbose logging at * run-time by echoing the debug value in its sysfs node: * # echo 0xf > /sys/module/drm/parameters/debug */#define DRM_UT_NONE 0x00#define DRM_UT_CORE 0x01#define DRM_UT_DRIVER 0x02#define DRM_UT_KMS 0x04#define DRM_UT_PRIME 0x08#define DRM_UT_ATOMIC 0x10#define DRM_UT_VBL 0x20#define DRM_UT_STATE 0x40 /***********************************************************************//** \name DRM template customization defaults *//*@{*/ /***********************************************************************//** \name Macros to make printk easier *//*@{*/ #define _DRM_PRINTK(once, level, fmt, ...) \ do { \ printk##once(KERN_##level "[" DRM_NAME "] " fmt, \ ##__VA_ARGS__); \ } while (0) #define DRM_INFO(fmt, ...) \ _DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__)#define DRM_NOTE(fmt, ...) \ _DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS__)#define DRM_WARN(fmt, ...) \ _DRM_PRINTK(, WARNING, fmt, ##__VA_ARGS__) #define DRM_INFO_ONCE(fmt, ...) \ _DRM_PRINTK(_once, INFO, fmt, ##__VA_ARGS__)#define DRM_NOTE_ONCE(fmt, ...) \ _DRM_PRINTK(_once, NOTICE, fmt, ##__VA_ARGS__)#define DRM_WARN_ONCE(fmt, ...) \ _DRM_PRINTK(_once, WARNING, fmt, ##__VA_ARGS__) /** * Error output. * * \param fmt printf() like format string. * \param arg arguments */#define DRM_DEV_ERROR(dev, fmt, ...) \ drm_dev_printk(dev, KERN_ERR, DRM_UT_NONE, __func__, " *ERROR*",\ fmt, ##__VA_ARGS__)#define DRM_ERROR(fmt, ...) \ drm_printk(KERN_ERR, DRM_UT_NONE, fmt, ##__VA_ARGS__) /** * Rate limited error output. Like DRM_ERROR() but won't flood the log. * * \param fmt printf() like format string. * \param arg arguments */#define DRM_DEV_ERROR_RATELIMITED(dev, fmt, ...) \({ \ static DEFINE_RATELIMIT_STATE(_rs, \ DEFAULT_RATELIMIT_INTERVAL, \ DEFAULT_RATELIMIT_BURST); \ \ if (__ratelimit(&_rs)) \ DRM_DEV_ERROR(dev, fmt, ##__VA_ARGS__); \})#define DRM_ERROR_RATELIMITED(fmt, ...) \ DRM_DEV_ERROR_RATELIMITED(NULL, fmt, ##__VA_ARGS__) #define DRM_DEV_INFO(dev, fmt, ...) \ drm_dev_printk(dev, KERN_INFO, DRM_UT_NONE, __func__, "", fmt, \ ##__VA_ARGS__) #define DRM_DEV_INFO_ONCE(dev, fmt, ...) \({ \ static bool __print_once __read_mostly; \ if (!__print_once) { \ __print_once = true; \ DRM_DEV_INFO(dev, fmt, ##__VA_ARGS__); \ } \}) /** * Debug output. * * \param fmt printf() like format string. * \param arg arguments */#define DRM_DEV_DEBUG(dev, fmt, args...) \ drm_dev_printk(dev, KERN_DEBUG, DRM_UT_CORE, __func__, "", fmt, \ ##args)#define DRM_DEBUG(fmt, ...) \ drm_printk(KERN_DEBUG, DRM_UT_CORE, fmt, ##__VA_ARGS__) #define DRM_DEV_DEBUG_DRIVER(dev, fmt, args...) \ drm_dev_printk(dev, KERN_DEBUG, DRM_UT_DRIVER, __func__, "", \ fmt, ##args)#define DRM_DEBUG_DRIVER(fmt, ...) \ drm_printk(KERN_DEBUG, DRM_UT_DRIVER, fmt, ##__VA_ARGS__) #define DRM_DEV_DEBUG_KMS(dev, fmt, args...) \ drm_dev_printk(dev, KERN_DEBUG, DRM_UT_KMS, __func__, "", fmt, \ ##args)#define DRM_DEBUG_KMS(fmt, ...) \ drm_printk(KERN_DEBUG, DRM_UT_KMS, fmt, ##__VA_ARGS__) #define DRM_DEV_DEBUG_PRIME(dev, fmt, args...) \ drm_dev_printk(dev, KERN_DEBUG, DRM_UT_PRIME, __func__, "", \ fmt, ##args)#define DRM_DEBUG_PRIME(fmt, ...) \ drm_printk(KERN_DEBUG, DRM_UT_PRIME, fmt, ##__VA_ARGS__) #define DRM_DEV_DEBUG_ATOMIC(dev, fmt, args...) \ drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ATOMIC, __func__, "", \ fmt, ##args)#define DRM_DEBUG_ATOMIC(fmt, ...) \ drm_printk(KERN_DEBUG, DRM_UT_ATOMIC, fmt, ##__VA_ARGS__) #define DRM_DEV_DEBUG_VBL(dev, fmt, args...) \ drm_dev_printk(dev, KERN_DEBUG, DRM_UT_VBL, __func__, "", fmt, \ ##args)#define DRM_DEBUG_VBL(fmt, ...) \ drm_printk(KERN_DEBUG, DRM_UT_VBL, fmt, ##__VA_ARGS__) #define _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, level, fmt, args...) \({ \ static DEFINE_RATELIMIT_STATE(_rs, \ DEFAULT_RATELIMIT_INTERVAL, \ DEFAULT_RATELIMIT_BURST); \ if (__ratelimit(&_rs)) \ drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ ## level, \ __func__, "", fmt, ##args); \}) /** * Rate limited debug output. Like DRM_DEBUG() but won't flood the log. * * \param fmt printf() like format string. * \param arg arguments */#define DRM_DEV_DEBUG_RATELIMITED(dev, fmt, args...) \ DEV__DRM_DEFINE_DEBUG_RATELIMITED(dev, CORE, fmt, ##args)#define DRM_DEBUG_RATELIMITED(fmt, args...) \ DRM_DEV_DEBUG_RATELIMITED(NULL, fmt, ##args)#define DRM_DEV_DEBUG_DRIVER_RATELIMITED(dev, fmt, args...) \ _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, DRIVER, fmt, ##args)#define DRM_DEBUG_DRIVER_RATELIMITED(fmt, args...) \ DRM_DEV_DEBUG_DRIVER_RATELIMITED(NULL, fmt, ##args)#define DRM_DEV_DEBUG_KMS_RATELIMITED(dev, fmt, args...) \ _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, KMS, fmt, ##args)#define DRM_DEBUG_KMS_RATELIMITED(fmt, args...) \ DRM_DEV_DEBUG_KMS_RATELIMITED(NULL, fmt, ##args)#define DRM_DEV_DEBUG_PRIME_RATELIMITED(dev, fmt, args...) \ _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, PRIME, fmt, ##args)#define DRM_DEBUG_PRIME_RATELIMITED(fmt, args...) \ DRM_DEV_DEBUG_PRIME_RATELIMITED(NULL, fmt, ##args) /* Format strings and argument splitters to simplify printing * various "complex" objects */ /*@}*/ /***********************************************************************//** \name Internal types and structures *//*@{*/ #define DRM_IF_VERSION(maj, min) (maj << 16 | min) /** * DRM device structure. This structure represent a complete card that * may contain multiple heads. */struct drm_device { struct list_head legacy_dev_list;/**< list of devices per driver for stealth attach cleanup */ int if_version; /**< Highest interface version set */ /** \name Lifetime Management */ /*@{ */ struct kref ref; /**< Object ref-count */ struct device *dev; /**< Device structure of bus-device */ struct drm_driver *driver; /**< DRM driver managing the device */ void *dev_private; /**< DRM driver private data */ struct drm_minor *control; /**< Control node */ struct drm_minor *primary; /**< Primary node */ struct drm_minor *render; /**< Render node */ bool registered; /* currently active master for this device. Protected by master_mutex */ struct drm_master *master; atomic_t unplugged; /**< Flag whether dev is dead */ struct inode *anon_inode; /**< inode for private address-space */ char *unique; /**< unique name of the device */ /*@} */ /** \name Locks */ /*@{ */ struct mutex struct_mutex; /**< For others */ struct mutex master_mutex; /**< For drm_minor::master and drm_file::is_master */ /*@} */ /** \name Usage Counters */ /*@{ */ int open_count; /**< Outstanding files open, protected by drm_global_mutex. */ spinlock_t buf_lock; /**< For drm_device::buf_use and a few other things. */ int buf_use; /**< Buffers in use -- cannot alloc */ atomic_t buf_alloc; /**< Buffer allocation in progress */ /*@} */ struct mutex filelist_mutex; struct list_head filelist; /** \name Memory management */ /*@{ */ struct list_head maplist; /**< Linked list of regions */ struct drm_open_hash map_hash; /**< User token hash table for maps */ /** \name Context handle management */ /*@{ */ struct list_head ctxlist; /**< Linked list of context handles */ struct mutex ctxlist_mutex; /**< For ctxlist */ struct idr ctx_idr; struct list_head vmalist; /**< List of vmas (for debugging) */ /*@} */ /** \name DMA support */ /*@{ */ struct drm_device_dma *dma; /**< Optional pointer for DMA support */ /*@} */ /** \name Context support */ /*@{ */ __volatile__ long context_flag; /**< Context swapping flag */ int last_context; /**< Last current context */ /*@} */ /** * @irq_enabled: * * Indicates that interrupt handling is enabled, specifically vblank * handling. Drivers which don't use drm_irq_install() need to set this * to true manually. */ bool irq_enabled; int irq; /* * If true, vblank interrupt will be disabled immediately when the * refcount drops to zero, as opposed to via the vblank disable * timer. * This can be set to true it the hardware has a working vblank * counter and the driver uses drm_vblank_on() and drm_vblank_off() * appropriately. */ bool vblank_disable_immediate; /* array of size num_crtcs */ struct drm_vblank_crtc *vblank; spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ spinlock_t vbl_lock; u32 max_vblank_count; /**< size of vblank counter register */ /** * List of events */ struct list_head vblank_event_list; spinlock_t event_lock; /*@} */ struct drm_agp_head *agp; /**< AGP data */ struct pci_dev *pdev; /**< PCI device structure */#ifdef __alpha__ struct pci_controller *hose;#endif struct drm_sg_mem *sg; /**< Scatter gather memory */ unsigned int num_crtcs; /**< Number of CRTCs on this device */ struct { int context; struct drm_hw_lock *lock; } sigdata; struct drm_local_map *agp_buffer_map; unsigned int agp_buffer_token; struct drm_mode_config mode_config; /**< Current mode config */ /** \name GEM information */ /*@{ */ struct mutex object_name_lock; struct idr object_name_idr; struct drm_vma_offset_manager *vma_offset_manager; /*@} */ int switch_power_state;}; /** * drm_drv_uses_atomic_modeset - check if the driver implements * atomic_commit() * @dev: DRM device * * This check is useful if drivers do not have DRIVER_ATOMIC set but * have atomic modesetting internally implemented. */static inline bool drm_drv_uses_atomic_modeset(struct drm_device *dev){ return dev->mode_config.funcs->atomic_commit != NULL;} #define DRM_SWITCH_POWER_ON 0#define DRM_SWITCH_POWER_OFF 1#define DRM_SWITCH_POWER_CHANGING 2#define DRM_SWITCH_POWER_DYNAMIC_OFF 3 static __inline__ int drm_core_check_feature(struct drm_device *dev, int feature){ return ((dev->driver->driver_features & feature) ? 1 : 0);} static inline void drm_device_set_unplugged(struct drm_device *dev){ smp_wmb(); atomic_set(&dev->unplugged, 1);} static inline int drm_device_is_unplugged(struct drm_device *dev){ int ret = atomic_read(&dev->unplugged); smp_rmb(); return ret;} /******************************************************************//** \name Internal function definitions *//*@{*/ /* Driver support (drm_drv.h) */ /* * These are exported to drivers so that they can implement fencing using * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. */ /*@}*/ /* returns true if currently okay to sleep */static __inline__ bool drm_can_sleep(void){ if (in_atomic() || in_dbg_master() || irqs_disabled()) return false; return true;Lines 1–500 of 506. Load more
/* * Internal Header for the Direct Rendering Manager * * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. * Copyright (c) 2009-2010, Code Aurora Forum. * All rights reserved. * * Author: Rickard E. (Rik) Faith <faith@valinux.com> * Author: Gareth Hughes <gareth@valinux.com> * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ #ifndef _DRM_P_H_ #define _DRM_P_H_ #include <linux/agp_backend.h> #include <linux/cdev.h> #include <linux/dma-mapping.h> #include <linux/file.h> #include <linux/fs.h> #include <linux/highmem.h> #include <linux/idr.h> #include <linux/init.h> #include <linux/io.h> #include <linux/jiffies.h> #include <linux/kernel.h> #include <linux/kref.h> #include <linux/miscdevice.h> #include <linux/mm.h> #include <linux/mutex.h> #include <linux/platform_device.h> #include <linux/poll.h> #include <linux/ratelimit.h> #include <linux/sched.h> #include <linux/slab.h> #include <linux/types.h> #include <linux/vmalloc.h> #include <linux/workqueue.h> #include <linux/dma-fence.h> #include <linux/module.h> #include <asm/mman.h> #include <asm/pgalloc.h> #include <linux/uaccess.h> #include <uapi/drm/drm.h> #include <uapi/drm/drm_mode.h> #include <drm/drm_agpsupport.h> #include <drm/drm_crtc.h> #include <drm/drm_fourcc.h> #include <drm/drm_global.h> #include <drm/drm_hashtab.h> #include <drm/drm_mm.h> #include <drm/drm_os_linux.h> #include <drm/drm_sarea.h> #include <drm/drm_drv.h> #include <drm/drm_prime.h> #include <drm/drm_pci.h> #include <drm/drm_file.h> #include <drm/drm_debugfs.h> #include <drm/drm_ioctl.h> #include <drm/drm_sysfs.h> #include <drm/drm_vblank.h> #include <drm/drm_irq.h> struct module; struct drm_device; struct drm_agp_head; struct drm_local_map; struct drm_device_dma; struct drm_gem_object; struct drm_master; struct drm_vblank_crtc; struct drm_vma_offset_manager; struct device_node; struct videomode; struct reservation_object; struct dma_buf_attachment; struct pci_dev; struct pci_controller; /* * The following categories are defined: * * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ... * This is the category used by the DRM_DEBUG() macro. * * DRIVER: Used in the vendor specific part of the driver: i915, radeon, ... * This is the category used by the DRM_DEBUG_DRIVER() macro. * * KMS: used in the modesetting code. * This is the category used by the DRM_DEBUG_KMS() macro. * * PRIME: used in the prime code. * This is the category used by the DRM_DEBUG_PRIME() macro. * * ATOMIC: used in the atomic code. * This is the category used by the DRM_DEBUG_ATOMIC() macro. * * VBL: used for verbose debug message in the vblank code * This is the category used by the DRM_DEBUG_VBL() macro. * * Enabling verbose debug messages is done through the drm.debug parameter, * each category being enabled by a bit. * * drm.debug=0x1 will enable CORE messages * drm.debug=0x2 will enable DRIVER messages * drm.debug=0x3 will enable CORE and DRIVER messages * ... * drm.debug=0x3f will enable all messages * * An interesting feature is that it's possible to enable verbose logging at * run-time by echoing the debug value in its sysfs node: * # echo 0xf > /sys/module/drm/parameters/debug */ #define DRM_UT_NONE 0x00 #define DRM_UT_CORE 0x01 #define DRM_UT_DRIVER 0x02 #define DRM_UT_KMS 0x04 #define DRM_UT_PRIME 0x08 #define DRM_UT_ATOMIC 0x10 #define DRM_UT_VBL 0x20 #define DRM_UT_STATE 0x40 /***********************************************************************/ /** \name DRM template customization defaults */ /*@{*/ /***********************************************************************/ /** \name Macros to make printk easier */ /*@{*/ #define _DRM_PRINTK(once, level, fmt, ...) \ do { \ printk##once(KERN_##level "[" DRM_NAME "] " fmt, \ ##__VA_ARGS__); \ } while (0) #define DRM_INFO(fmt, ...) \ _DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__) #define DRM_NOTE(fmt, ...) \ _DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS__) #define DRM_WARN(fmt, ...) \ _DRM_PRINTK(, WARNING, fmt, ##__VA_ARGS__) #define DRM_INFO_ONCE(fmt, ...) \ _DRM_PRINTK(_once, INFO, fmt, ##__VA_ARGS__) #define DRM_NOTE_ONCE(fmt, ...) \ _DRM_PRINTK(_once, NOTICE, fmt, ##__VA_ARGS__) #define DRM_WARN_ONCE(fmt, ...) \ _DRM_PRINTK(_once, WARNING, fmt, ##__VA_ARGS__) /** * Error output. * * \param fmt printf() like format string. * \param arg arguments */ #define DRM_DEV_ERROR(dev, fmt, ...) \ drm_dev_printk(dev, KERN_ERR, DRM_UT_NONE, __func__, " *ERROR*",\ fmt, ##__VA_ARGS__) #define DRM_ERROR(fmt, ...) \ drm_printk(KERN_ERR, DRM_UT_NONE, fmt, ##__VA_ARGS__) /** * Rate limited error output. Like DRM_ERROR() but won't flood the log. * * \param fmt printf() like format string. * \param arg arguments */ #define DRM_DEV_ERROR_RATELIMITED(dev, fmt, ...) \ ({ \ static DEFINE_RATELIMIT_STATE(_rs, \ DEFAULT_RATELIMIT_INTERVAL, \ DEFAULT_RATELIMIT_BURST); \ \ if (__ratelimit(&_rs)) \ DRM_DEV_ERROR(dev, fmt, ##__VA_ARGS__); \ }) #define DRM_ERROR_RATELIMITED(fmt, ...) \ DRM_DEV_ERROR_RATELIMITED(NULL, fmt, ##__VA_ARGS__) #define DRM_DEV_INFO(dev, fmt, ...) \ drm_dev_printk(dev, KERN_INFO, DRM_UT_NONE, __func__, "", fmt, \ ##__VA_ARGS__) #define DRM_DEV_INFO_ONCE(dev, fmt, ...) \ ({ \ static bool __print_once __read_mostly; \ if (!__print_once) { \ __print_once = true; \ DRM_DEV_INFO(dev, fmt, ##__VA_ARGS__); \ } \ }) /** * Debug output. * * \param fmt printf() like format string. * \param arg arguments */ #define DRM_DEV_DEBUG(dev, fmt, args...) \ drm_dev_printk(dev, KERN_DEBUG, DRM_UT_CORE, __func__, "", fmt, \ ##args) #define DRM_DEBUG(fmt, ...) \ drm_printk(KERN_DEBUG, DRM_UT_CORE, fmt, ##__VA_ARGS__) #define DRM_DEV_DEBUG_DRIVER(dev, fmt, args...) \ drm_dev_printk(dev, KERN_DEBUG, DRM_UT_DRIVER, __func__, "", \ fmt, ##args) #define DRM_DEBUG_DRIVER(fmt, ...) \ drm_printk(KERN_DEBUG, DRM_UT_DRIVER, fmt, ##__VA_ARGS__) #define DRM_DEV_DEBUG_KMS(dev, fmt, args...) \ drm_dev_printk(dev, KERN_DEBUG, DRM_UT_KMS, __func__, "", fmt, \ ##args) #define DRM_DEBUG_KMS(fmt, ...) \ drm_printk(KERN_DEBUG, DRM_UT_KMS, fmt, ##__VA_ARGS__) #define DRM_DEV_DEBUG_PRIME(dev, fmt, args...) \ drm_dev_printk(dev, KERN_DEBUG, DRM_UT_PRIME, __func__, "", \ fmt, ##args) #define DRM_DEBUG_PRIME(fmt, ...) \ drm_printk(KERN_DEBUG, DRM_UT_PRIME, fmt, ##__VA_ARGS__) #define DRM_DEV_DEBUG_ATOMIC(dev, fmt, args...) \ drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ATOMIC, __func__, "", \ fmt, ##args) #define DRM_DEBUG_ATOMIC(fmt, ...) \ drm_printk(KERN_DEBUG, DRM_UT_ATOMIC, fmt, ##__VA_ARGS__) #define DRM_DEV_DEBUG_VBL(dev, fmt, args...) \ drm_dev_printk(dev, KERN_DEBUG, DRM_UT_VBL, __func__, "", fmt, \ ##args) #define DRM_DEBUG_VBL(fmt, ...) \ drm_printk(KERN_DEBUG, DRM_UT_VBL, fmt, ##__VA_ARGS__) #define _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, level, fmt, args...) \ ({ \ static DEFINE_RATELIMIT_STATE(_rs, \ DEFAULT_RATELIMIT_INTERVAL, \ DEFAULT_RATELIMIT_BURST); \ if (__ratelimit(&_rs)) \ drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ ## level, \ __func__, "", fmt, ##args); \ }) /** * Rate limited debug output. Like DRM_DEBUG() but won't flood the log. * * \param fmt printf() like format string. * \param arg arguments */ #define DRM_DEV_DEBUG_RATELIMITED(dev, fmt, args...) \ DEV__DRM_DEFINE_DEBUG_RATELIMITED(dev, CORE, fmt, ##args) #define DRM_DEBUG_RATELIMITED(fmt, args...) \ DRM_DEV_DEBUG_RATELIMITED(NULL, fmt, ##args) #define DRM_DEV_DEBUG_DRIVER_RATELIMITED(dev, fmt, args...) \ _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, DRIVER, fmt, ##args) #define DRM_DEBUG_DRIVER_RATELIMITED(fmt, args...) \ DRM_DEV_DEBUG_DRIVER_RATELIMITED(NULL, fmt, ##args) #define DRM_DEV_DEBUG_KMS_RATELIMITED(dev, fmt, args...) \ _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, KMS, fmt, ##args) #define DRM_DEBUG_KMS_RATELIMITED(fmt, args...) \ DRM_DEV_DEBUG_KMS_RATELIMITED(NULL, fmt, ##args) #define DRM_DEV_DEBUG_PRIME_RATELIMITED(dev, fmt, args...) \ _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, PRIME, fmt, ##args) #define DRM_DEBUG_PRIME_RATELIMITED(fmt, args...) \ DRM_DEV_DEBUG_PRIME_RATELIMITED(NULL, fmt, ##args) /* Format strings and argument splitters to simplify printing * various "complex" objects */ /*@}*/ /***********************************************************************/ /** \name Internal types and structures */ /*@{*/ #define DRM_IF_VERSION(maj, min) (maj << 16 | min) /** * DRM device structure. This structure represent a complete card that * may contain multiple heads. */ struct drm_device { struct list_head legacy_dev_list;/**< list of devices per driver for stealth attach cleanup */ int if_version; /**< Highest interface version set */ /** \name Lifetime Management */ /*@{ */ struct kref ref; /**< Object ref-count */ struct device *dev; /**< Device structure of bus-device */ struct drm_driver *driver; /**< DRM driver managing the device */ void *dev_private; /**< DRM driver private data */ struct drm_minor *control; /**< Control node */ struct drm_minor *primary; /**< Primary node */ struct drm_minor *render; /**< Render node */ bool registered; /* currently active master for this device. Protected by master_mutex */ struct drm_master *master; atomic_t unplugged; /**< Flag whether dev is dead */ struct inode *anon_inode; /**< inode for private address-space */ char *unique; /**< unique name of the device */ /*@} */ /** \name Locks */ /*@{ */ struct mutex struct_mutex; /**< For others */ struct mutex master_mutex; /**< For drm_minor::master and drm_file::is_master */ /*@} */ /** \name Usage Counters */ /*@{ */ int open_count; /**< Outstanding files open, protected by drm_global_mutex. */ spinlock_t buf_lock; /**< For drm_device::buf_use and a few other things. */ int buf_use; /**< Buffers in use -- cannot alloc */ atomic_t buf_alloc; /**< Buffer allocation in progress */ /*@} */ struct mutex filelist_mutex; struct list_head filelist; /** \name Memory management */ /*@{ */ struct list_head maplist; /**< Linked list of regions */ struct drm_open_hash map_hash; /**< User token hash table for maps */ /** \name Context handle management */ /*@{ */ struct list_head ctxlist; /**< Linked list of context handles */ struct mutex ctxlist_mutex; /**< For ctxlist */ struct idr ctx_idr; struct list_head vmalist; /**< List of vmas (for debugging) */ /*@} */ /** \name DMA support */ /*@{ */ struct drm_device_dma *dma; /**< Optional pointer for DMA support */ /*@} */ /** \name Context support */ /*@{ */ __volatile__ long context_flag; /**< Context swapping flag */ int last_context; /**< Last current context */ /*@} */ /** * @irq_enabled: * * Indicates that interrupt handling is enabled, specifically vblank * handling. Drivers which don't use drm_irq_install() need to set this * to true manually. */ bool irq_enabled; int irq; /* * If true, vblank interrupt will be disabled immediately when the * refcount drops to zero, as opposed to via the vblank disable * timer. * This can be set to true it the hardware has a working vblank * counter and the driver uses drm_vblank_on() and drm_vblank_off() * appropriately. */ bool vblank_disable_immediate; /* array of size num_crtcs */ struct drm_vblank_crtc *vblank; spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ spinlock_t vbl_lock; u32 max_vblank_count; /**< size of vblank counter register */ /** * List of events */ struct list_head vblank_event_list; spinlock_t event_lock; /*@} */ struct drm_agp_head *agp; /**< AGP data */ struct pci_dev *pdev; /**< PCI device structure */ #ifdef __alpha__ struct pci_controller *hose; #endif struct drm_sg_mem *sg; /**< Scatter gather memory */ unsigned int num_crtcs; /**< Number of CRTCs on this device */ struct { int context; struct drm_hw_lock *lock; } sigdata; struct drm_local_map *agp_buffer_map; unsigned int agp_buffer_token; struct drm_mode_config mode_config; /**< Current mode config */ /** \name GEM information */ /*@{ */ struct mutex object_name_lock; struct idr object_name_idr; struct drm_vma_offset_manager *vma_offset_manager; /*@} */ int switch_power_state; }; /** * drm_drv_uses_atomic_modeset - check if the driver implements * atomic_commit() * @dev: DRM device * * This check is useful if drivers do not have DRIVER_ATOMIC set but * have atomic modesetting internally implemented. */ static inline bool drm_drv_uses_atomic_modeset(struct drm_device *dev) { return dev->mode_config.funcs->atomic_commit != NULL; } #define DRM_SWITCH_POWER_ON 0 #define DRM_SWITCH_POWER_OFF 1 #define DRM_SWITCH_POWER_CHANGING 2 #define DRM_SWITCH_POWER_DYNAMIC_OFF 3 static __inline__ int drm_core_check_feature(struct drm_device *dev, int feature) { return ((dev->driver->driver_features & feature) ? 1 : 0); } static inline void drm_device_set_unplugged(struct drm_device *dev) { smp_wmb(); atomic_set(&dev->unplugged, 1); } static inline int drm_device_is_unplugged(struct drm_device *dev) { int ret = atomic_read(&dev->unplugged); smp_rmb(); return ret; } /******************************************************************/ /** \name Internal function definitions */ /*@{*/ /* Driver support (drm_drv.h) */ /* * These are exported to drivers so that they can implement fencing using * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. */ /*@}*/ /* returns true if currently okay to sleep */ static __inline__ bool drm_can_sleep(void) { if (in_atomic() || in_dbg_master() || irqs_disabled()) return false; return true;