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path: root/linux-core/drm_ioctl.c
AgeCommit message (Collapse)Author
2007-11-29drm: more cleanupsDave Airlie
2007-11-05drm: fix memset size errorLi Zefan
The size passing to memset is wrong. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
2007-07-23linux: Make DRM_IOCTL_GET_CLIENT return EINVAL when it can't find client #idx.Eric Anholt
Fixes the getclient test and dritest -c.
2007-07-21Fix misc ioctl issues, makes Nouveau run.Pekka Paalanen
Debug print fix in drm_release(). Forgotten local variable init in drm_setversion(). Unnecessary put_user() in drm_addmap_ioctl(). ioctl->cmd check broken in drm_ioctl(); workaround.
2007-07-20Replace DRM_IOCTL_ARGS with (dev, data, file_priv) and remove DRM_DEVICE.Eric Anholt
The data is now in kernel space, copied in/out as appropriate according to the This results in DRM_COPY_{TO,FROM}_USER going away, and error paths to deal with those failures. This also means that XFree86 4.2.0 support for i810 DRM is lost.
2007-07-20Replace filp in ioctl arguments with drm_file *file_priv.Eric Anholt
As a fallout, replace filp storage with file_priv storage for "unique identifier of a client" all over the DRM. There is a 1:1 mapping, so this should be a noop. This could be a minor performance improvement, as everything on Linux dereferenced filp to get file_priv anyway, while only the mmap ioctls went the other direction.
2007-07-20Remove DRM_ERR OS macro.Eric Anholt
This was used to make all ioctl handlers return -errno on linux and errno on *BSD. Instead, just return -errno in shared code, and flip sign on return from shared code to *BSD code.
2007-07-16drm: remove drmP.h internal typedefsDave Airlie
2007-07-16drm: detypedef drm.h and fixup all problemsDave Airlie
2007-05-26drm: cleanup use of Linux list handling macrosDave Airlie
This makes the drms use of the list handling macros a lot cleaner and more along the lines of how they should be used.
2007-03-19more return values fixupDave Airlie
2007-03-19fixup return values in drm ioctlDave Airlie
2006-12-19make sizeof match the copy structDave Airlie
2006-08-28drm: lots of small cleanups and whitespace issues fixed upDave Airlie
remove a mach64 warning, align a lot of things from linux kernel
2006-08-28remove local copies of pci domain/bus/slot/numDave Airlie
2006-07-24switch drm to use Linux mutexes instead of semaphore.Dave Airlie
I hope the fallback compat code works if not shout at me.
2005-08-16add Egberts 32/64 bit patch (its in kernel already...)Dave Airlie
2005-08-05Rename the driver hooks in the DRM to something a little moreEric Anholt
understandable: preinit -> load postinit -> (removed) presetup -> firstopen postsetup -> (removed) open_helper -> open prerelease -> preclose free_filp_priv -> postclose pretakedown -> lastclose postcleanup -> unload release -> reclaim_buffers_locked version -> (removed) postinit and version were replaced with generic code in the Linux DRM (drivers now set their version numbers and description in the driver structure, like on BSD). postsetup wasn't used at all. Fixes the savage hooks for initializing and tearing down mappings at the right times. Testing involved at least starting X, running glxgears, killing glxgears, exiting X, and repeating. Tested on: FreeBSD (g200, g400, r200, r128) Linux (r200, savage4)
2005-03-08Fix for bug 2673 from Egbert Eich - memset the versionDave Airlie
2005-01-24hopefully fix drm_core setversion ioctl... pointed out by Eric on ircDave Airlie
2004-10-20Switch linux-core from using dev->pdev->driver->name toJon Smirl
dev->driver->pci_driver.name. This avoids the stealth mode case where pdev is pointing to the wrong driver or no driver.
2004-10-20Fix dd vs di version typo in drm_setversionJon Smirl
2004-10-19Add a protective check against a possible buffer overflowJon Smirl
2004-10-18Update Doxygen configuration & comments.Jose Fonseca
2004-10-12Breakout heads into their own data structures.Jon Smirl
2004-10-10Rename fn_tbl to driver. Core driver now uses pci_driver name whichJon Smirl
reflects the personality name.
2004-09-30Lindent of core build. Drivers checked for no binary diffs. A few filesJon Smirl
weren't Lindent's because their comments didn't convert very well. A bunch of other minor clean up with no code implact included.
2004-09-30Move things around to reduce public symbols and even out files. Switch toJon Smirl
get_order from drm_order.
2004-09-27First check in for DRM that splits core from personality modulesJon Smirl
2004-09-05merge back bunch of whitespace and misc changes from kernelDave Airlie
2004-08-27__NO_VERSION__ hasn't been needed since 2.3 days ditch it...Dave Airlie
2004-08-24Merged drmfntbl-0-0-2Dave Airlie
2004-07-25sync up with current 2.6 kernel bk tree - mostly __user annotationsDave Airlie
2004-07-20first set of __user annotations from kernel (Al Viro)Dave Airlie
2004-06-07The dev->devname being passed to request_irq in drm_irq.h is null. With theDave Airlie
old DRM interface, the devname was set in DRM(setunique), but with the current DRM interface >=1.1 the devname is not being set in DRM(set_busid). From: Alan Swanson Approved-by: Dave Airlie <airlied@linux.ie>
2003-11-05- Tie the DRM to a specific device: setunique no longer succeeds when givenEric Anholt
a busid that doesn't correspond to the device the DRM is attached to. This is a breaking of backwards-compatibility only for the multiple-DRI-head case with X Servers that don't use interface 1.1. - Move irq_busid to drm_irq.h and make it only return the IRQ for the current device. Retains compatibility with previous X Servers, cleans up unnecessary code. This means no irq_busid on !__HAVE_IRQ, but can be changed if necessary. - Bump interface version to 1.2. This version when set signifies that the control ioctl should ignore the irq number passed in and enable the interrupt handler for the attached device. Otherwise it errors out when the passed-in irq is not equal to the device's. - Store the highest version the interface has been set to in the device. - Fix a recursion on DRM_LOCK in irq_uninstall on FreeBSD. This leaves irq_uninstall being done without the lock in some cases, but it was racey anyways.
2003-10-23- Introduce a new ioctl, DRM_IOCTL_SET_VERSION. This ioctl allows theEric Anholt
server or client to notify the DRM that it expects a certain version of the device dependent or device independent interface. If the major doesn't match or minor is too large, EINVAL is returned. A major of -1 means that the requestor doesn't care about that portion of the interface. The ioctl returns the actual versions in the same struct. - Introduce DRM DI interface version 1.1. If the server requests version 1.1, then the DRM sets the unique itself according to the busid of the device it probed, which may then be accessed as normal using getunique. - Request version 1.1 in libdrm's drmOpenByBusID, allowing the X Server to request based on a BusID. Introduce a wrapper for DRM_IOCTL_SET_VERSION and bump libdrm minor version. - Pass the busid in DRIScreenInit if libdrm can handle both a busid and name. This allows drmOpenByBusID to be used to find the DRM instead of just the driver name, which allows us in the future to tie a DRM more strongly to the device it probed to. Introduce a function DRICreatePCIBusID which creates a busid in the form pci:oooo:bb:dd.f similar to linux's pci_name() function. This matches the format used by the DRM in version 1.1. libdrm knows how to match both this format and the old PCI:b:d:f format. - Use the new DRICreatePCIBusID function in the *_dri.c to request the new, more exact busid format.
2003-05-27Merged DRM documentation.Jose Fonseca
2003-04-24Remove unused dev->map_count. We always iterate the maplist withLeif Delgass
list_for_each() and the count is not updated or used for stats.
2003-04-08Use list_entry() to get container struct from struct list_head pointers.Leif Delgass
Build fix for RedHat 9 kernel (5 args to remap_page_range()).
2003-03-25linux merge for drmAlan Hourihane
2002-10-08Fix error condition...Keith Whitwell
2002-10-08Call pci_enable_device() in DRM(irq_busid).Keith Whitwell
2001-09-25merge with 2.4.10 kernelAlan Hourihane
2001-08-14A few warning fixes when actually building under 2.4.9-pre2 + someJeff Hartmann
reformating
2001-08-10Commit Keith Owens kernel Makefile changes, merge and commit alpha patchJeff Hartmann
set from Jay Estabrook (sans some mga modifications which broke other arch's.)
2001-08-07Lots of DRM fixes: added new pieces of template code so the ffb driver canJeff Hartmann
be ported, rolled back r128 and i810 version bumps so 4.1.0 works with cvs kernel modules, added Config.in and updated Makefile.kernel, incorporated lots of drm fixes inspired by patches sent by Redhat, made DRM(realloc) usage check for NULL allocations, restructure driver init routines to export dev_priv only when initialized and to check for all error conditions.
2001-07-20Merge checker fixes from Alan Cox made to the drm in the ac kernel tree.Jeff Hartmann
These aren't really security problems, but Alan has made some arguments that have convinced me that the code should be fixed anyway.
2001-05-01Import of XFree86 4.0.99.3David Dawes
2001-04-09Import -f XFree86 4.0.99.2David Dawes
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-10 15:21:29 +0000
span> irqreturn_t; #define IRQ_HANDLED /* nothing */ #define IRQ_NONE /* nothing */ #define DRM_DEVICE drm_device_t *dev = kdev->si_drv1 #define DRM_MALLOC(size) malloc( size, DRM(M_DRM), M_NOWAIT ) #define DRM_FREE(pt,size) free( pt, DRM(M_DRM) ) /* Read/write from bus space, with byteswapping to le if necessary */ #define DRM_READ8(map, offset) *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) #define DRM_READ16(map, offset) *(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset)) #define DRM_READ32(map, offset) *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) #define DRM_WRITE8(map, offset, val) *(volatile u_int8_t *) (((unsigned long)(map)->handle) + (offset)) = val #define DRM_WRITE16(map, offset, val) *(volatile u_int16_t *) (((unsigned long)(map)->handle) + (offset)) = val #define DRM_WRITE32(map, offset, val) *(volatile u_int32_t *)(((unsigned long)(map)->handle) + (offset)) = val /* #define DRM_READ8(map, offset) bus_space_read_1( (map)->iot, (map)->ioh, (offset) ) #define DRM_READ32(map, offset) bus_space_read_4( (map)->iot, (map)->ioh, (offset) ) #define DRM_WRITE8(map, offset, val) bus_space_write_1( (map)->iot, (map)->ioh, (offset), (val) ) #define DRM_WRITE32(map, offset, val) bus_space_write_4( (map)->iot, (map)->ioh, (offset), (val) ) */ #define DRM_AGP_FIND_DEVICE() agp_find_device() #define DRM_ERR(v) v #define DRM_MTRR_WC MDF_WRITECOMBINE #define DRM_GET_PRIV_WITH_RETURN(_priv, _filp) \ do { \ if (_filp != (DRMFILE)(intptr_t)DRM_CURRENTPID) { \ DRM_ERROR("filp doesn't match curproc\n"); \ return EINVAL; \ } \ DRM_LOCK(); \ _priv = DRM(find_file_by_proc)(dev, DRM_CURPROC); \ DRM_UNLOCK(); \ if (_priv == NULL) { \ DRM_ERROR("can't find authenticator\n"); \ return EINVAL; \ } \ } while (0) #define LOCK_TEST_WITH_RETURN(dev, filp) \ do { \ if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \ dev->lock.filp != filp) { \ DRM_ERROR("%s called without lock held\n", \ __FUNCTION__); \ return EINVAL; \ } \ } while (0) #define DRM_UDELAY(udelay) DELAY(udelay) #define DRM_GETSAREA() \ do { \ drm_map_list_entry_t *listentry; \ TAILQ_FOREACH(listentry, dev->maplist, link) { \ drm_local_map_t *map = listentry->map; \ if (map->type == _DRM_SHM && \ map->flags & _DRM_CONTAINS_LOCK) { \ dev_priv->sarea = map; \ break; \ } \ } \ } while (0) #define DRM_HZ hz #if defined(__FreeBSD__) && __FreeBSD_version > 500000 #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ for ( ret = 0 ; !ret && !(condition) ; ) { \ mtx_lock(&dev->irq_lock); \ if (!(condition)) \ ret = msleep(&(queue), &dev->irq_lock, \ PZERO | PCATCH, "drmwtq", (timeout)); \ mtx_unlock(&dev->irq_lock); \ } #else #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ for ( ret = 0 ; !ret && !(condition) ; ) { \ int s = spldrm(); \ if (!(condition)) \ ret = tsleep( &(queue), PZERO | PCATCH, \ "drmwtq", (timeout) ); \ splx(s); \ } #endif #define DRM_WAKEUP( queue ) wakeup( queue ) #define DRM_WAKEUP_INT( queue ) wakeup( queue ) #define DRM_INIT_WAITQUEUE( queue ) do {} while (0) #define DRM_COPY_TO_USER_IOCTL(user, kern, size) \ if ( IOCPARM_LEN(cmd) != size) \ return EINVAL; \ *user = kern; #define DRM_COPY_FROM_USER_IOCTL(kern, user, size) \ if ( IOCPARM_LEN(cmd) != size) \ return EINVAL; \ kern = *user; #define DRM_COPY_TO_USER(user, kern, size) \ copyout(kern, user, size) #define DRM_COPY_FROM_USER(kern, user, size) \ copyin(user, kern, size) /* Macros for userspace access with checking readability once */ /* FIXME: can't find equivalent functionality for nocheck yet. * It'll be slower than linux, but should be correct. */ #define DRM_VERIFYAREA_READ( uaddr, size ) \ (!useracc((caddr_t)uaddr, size, VM_PROT_READ)) #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ copyin(arg2, arg1, arg3) #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ copyout(arg2, arg1, arg3) #define DRM_GET_USER_UNCHECKED(val, uaddr) \ ((val) = fuword(uaddr), 0) #define DRM_PUT_USER_UNCHECKED(uaddr, val) \ suword(uaddr, val) /* DRM_READMEMORYBARRIER() prevents reordering of reads. * DRM_WRITEMEMORYBARRIER() prevents reordering of writes. * DRM_MEMORYBARRIER() prevents reordering of reads and writes. */ #if defined(__i386__) #define DRM_READMEMORYBARRIER() __asm __volatile( \ "lock; addl $0,0(%%esp)" : : : "memory"); #define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory"); #define DRM_MEMORYBARRIER() __asm __volatile( \ "lock; addl $0,0(%%esp)" : : : "memory"); #elif defined(__alpha__) #define DRM_READMEMORYBARRIER() alpha_mb(); #define DRM_WRITEMEMORYBARRIER() alpha_wmb(); #define DRM_MEMORYBARRIER() alpha_mb(); #elif defined(__amd64__) #define DRM_READMEMORYBARRIER() __asm __volatile( \ "lock; addl $0,0(%%rsp)" : : : "memory"); #define DRM_WRITEMEMORYBARRIER() __asm __volatile("" : : : "memory"); #define DRM_MEMORYBARRIER() __asm __volatile( \ "lock; addl $0,0(%%rsp)" : : : "memory"); #endif #define PAGE_ALIGN(addr) round_page(addr) #ifndef M_WAITOK /* M_WAITOK (=0) name removed in -current */ #define M_WAITOK 0 #endif #define malloctype DRM(M_DRM) /* The macros conflicted in the MALLOC_DEFINE */ MALLOC_DECLARE(malloctype); #undef malloctype #if __FreeBSD_version < 502109 #define bus_alloc_resource_any(dev, type, rid, flags) \ bus_alloc_resource(dev, type, rid, 0ul, ~0ul, 1, flags) #endif #if __FreeBSD_version >= 480000 #define cpu_to_le32(x) htole32(x) #define le32_to_cpu(x) le32toh(x) #else #define cpu_to_le32(x) (x) #define le32_to_cpu(x) (x) #endif typedef unsigned long dma_addr_t; typedef u_int32_t atomic_t; typedef u_int32_t u32; typedef u_int16_t u16; typedef u_int8_t u8; #define atomic_set(p, v) (*(p) = (v)) #define atomic_read(p) (*(p)) #define atomic_inc(p) atomic_add_int(p, 1) #define atomic_dec(p) atomic_subtract_int(p, 1) #define atomic_add(n, p) atomic_add_int(p, n) #define atomic_sub(n, p) atomic_subtract_int(p, n) /* Fake this */ #if __FreeBSD_version < 500000 /* The extra atomic functions from 5.0 haven't been merged to 4.x */ static __inline int atomic_cmpset_int(volatile u_int *dst, u_int exp, u_int src) { int res = exp; __asm __volatile ( " lock ; " " cmpxchgl %1,%2 ; " " setz %%al ; " " movzbl %%al,%0 ; " "1: " "# atomic_cmpset_int" : "+a" (res) /* 0 (result) */ : "r" (src), /* 1 */ "m" (*(dst)) /* 2 */ : "memory"); return (res); } #endif static __inline atomic_t test_and_set_bit(int b, volatile void *p) { int s = splhigh(); unsigned int m = 1<<b; unsigned int r = *(volatile int *)p & m; *(volatile int *)p |= m; splx(s); return r; } static __inline void clear_bit(int b, volatile void *p) { atomic_clear_int(((volatile int *)p) + (b >> 5), 1 << (b & 0x1f)); } static __inline void set_bit(int b, volatile void *p) { atomic_set_int(((volatile int *)p) + (b >> 5), 1 << (b & 0x1f)); } static __inline int test_bit(int b, volatile void *p) { return ((volatile int *)p)[b >> 5] & (1 << (b & 0x1f)); } static __inline int find_first_zero_bit(volatile void *p, int max) { int b; for (b = 0; b < max; b += 32) { if (((volatile int *)p)[b >> 5] != ~0) { for (;;) { if ((((volatile int *)p)[b >> 5] & (1 << (b & 0x1f))) == 0) return b; b++; } } } return max; } #define spldrm() spltty() /* * Fake out the module macros for versions of FreeBSD where they don't * exist. */ #if (__FreeBSD_version < 500002 && __FreeBSD_version > 500000) || __FreeBSD_version < 420000 #define MODULE_VERSION(a,b) struct __hack #define MODULE_DEPEND(a,b,c,d,e) struct __hack #endif /* Redefinitions to make templating easy */ #define wait_queue_head_t atomic_t #define agp_memory void #define jiffies ticks /* Macros to make printf easier */ #define DRM_ERROR(fmt, arg...) \ printf("error: [" DRM_NAME ":pid%d:%s] *ERROR* " fmt, \ DRM_CURRENTPID, __func__ , ## arg) #define DRM_MEM_ERROR(area, fmt, arg...) \ printf("error: [" DRM_NAME ":pid%d:%s:%s] *ERROR* " fmt, \ DRM_CURRENTPID , __func__, DRM(mem_stats)[area].name , ##arg) #define DRM_INFO(fmt, arg...) printf("info: [" DRM_NAME "] " fmt , ## arg) #if DRM_DEBUG_CODE #define DRM_DEBUG(fmt, arg...) \ do { \ if (DRM(flags) & DRM_FLAG_DEBUG) \ printf("[" DRM_NAME ":pid%d:%s] " fmt, \ DRM_CURRENTPID, __func__ , ## arg); \ } while (0) #else #define DRM_DEBUG(fmt, arg...) do { } while (0) #endif #if (__FreeBSD_version >= 500000) || ((__FreeBSD_version < 500000) && (__FreeBSD_version >= 410002)) #define DRM_SYSCTL_HANDLER_ARGS (SYSCTL_HANDLER_ARGS) #else #define DRM_SYSCTL_HANDLER_ARGS SYSCTL_HANDLER_ARGS #endif /* Internal functions */ /* drm_drv.h */ extern d_ioctl_t DRM(ioctl); extern d_open_t DRM(open); extern d_close_t DRM(close); extern d_read_t DRM(read); extern d_poll_t DRM(poll); extern d_mmap_t DRM(mmap); extern int DRM(open_helper)(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p, drm_device_t *dev); extern drm_file_t *DRM(find_file_by_proc)(drm_device_t *dev, DRM_STRUCTPROC *p); /* sysctl support (drm_sysctl.h) */ extern int DRM(sysctl_init)(drm_device_t *dev); extern int DRM(sysctl_cleanup)(drm_device_t *dev); /* Memory info sysctl (drm_memory_debug.h) */ #ifdef DEBUG_MEMORY extern int DRM(mem_info) DRM_SYSCTL_HANDLER_ARGS; #endif
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-10 15:21:28 +0000