mirror of
https://gitlab.freedesktop.org/mesa/drm.git
synced 2025-12-24 18:20:11 +01:00
1fc0a5e1e4
DRM(write_string). This is the first part of removing much of the
support code for gamma from the BSD DRM, since it appears that no new
drivers are using it and nobody has ever shown interest in gamma on
BSD.
349 lines
9.1 KiB
C
349 lines
9.1 KiB
C
#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/conf.h>
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#include <sys/stat.h>
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#include <sys/proc.h>
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#include <sys/lock.h>
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#include <sys/fcntl.h>
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#include <sys/uio.h>
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#include <sys/filio.h>
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#include <sys/sysctl.h>
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#include <sys/select.h>
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#include <sys/device.h>
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#include <sys/mman.h>
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#include <uvm/uvm.h>
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#include <sys/vnode.h>
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#include <sys/poll.h>
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#include <sys/lkm.h>
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/* For TIOCSPGRP/TIOCGPGRP */
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#include <sys/ttycom.h>
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#include <uvm/uvm.h>
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#include <machine/pmap.h>
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#include <machine/bus.h>
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#include <sys/resourcevar.h>
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#include <machine/sysarch.h>
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#include <machine/mtrr.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#define __REALLY_HAVE_AGP __HAVE_AGP
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#define __REALLY_HAVE_MTRR 1
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#define __REALLY_HAVE_SG 0
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#if __REALLY_HAVE_AGP
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#include <dev/pci/agpvar.h>
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#include <sys/agpio.h>
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#endif
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#include <opt_drm.h>
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#if DRM_DEBUG
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#undef DRM_DEBUG_CODE
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#define DRM_DEBUG_CODE 2
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#endif
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#undef DRM_DEBUG
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#if DRM_LINUX
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#undef DRM_LINUX /* FIXME: Linux compat has not been ported yet */
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#endif
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typedef drm_device_t *device_t;
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extern struct cfdriver DRM(cd);
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#define DRM_TIME_SLICE (hz/20) /* Time slice for GLXContexts */
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#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
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#define DRM_DEV_UID 0
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#define DRM_DEV_GID 0
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#define CDEV_MAJOR 34
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#define DRM_CURPROC curproc
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#define DRM_STRUCTPROC struct proc
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#define DRM_SPINTYPE struct simplelock
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#define DRM_SPININIT(l,name) simple_lock_init(&l)
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#define DRM_SPINUNINIT(l)
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#define DRM_SPINLOCK(l) simple_lock(l)
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#define DRM_SPINUNLOCK(u) simple_unlock(u);
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#define DRM_CURRENTPID curproc->p_pid
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/* Currently our DRMFILE (filp) is a void * which is actually the pid
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* of the current process. It should be a per-open unique pointer, but
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* code for that is not yet written */
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#define DRMFILE void *
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#define DRM_IOCTL_ARGS dev_t kdev, u_long cmd, caddr_t data, int flags, DRM_STRUCTPROC *p, DRMFILE filp
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#define DRM_LOCK lockmgr(&dev->dev_lock, LK_EXCLUSIVE, NULL)
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#define DRM_UNLOCK lockmgr(&dev->dev_lock, LK_RELEASE, NULL)
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#define DRM_SUSER(p) suser(p->p_ucred, &p->p_acflag)
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#define DRM_TASKQUEUE_ARGS void *dev, int pending
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#define DRM_IRQ_ARGS void *arg
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#define DRM_DEVICE drm_device_t *dev = device_lookup(&DRM(cd), minor(kdev))
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/* XXX Not sure if this is the 'right' version.. */
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#if __NetBSD_Version__ >= 106140000
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MALLOC_DECLARE(DRM(M_DRM));
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#else
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/* XXX Make sure this works */
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extern const int DRM(M_DRM) = M_DEVBUF;
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#endif /* __NetBSD_Version__ */
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#define DRM_MALLOC(size) malloc( size, DRM(M_DRM), M_NOWAIT )
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#define DRM_FREE(pt,size) free( pt, DRM(M_DRM) )
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#define DRM_VTOPHYS(addr) vtophys(addr)
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#define DRM_READ8(map, offset) bus_space_read_1( (map)->iot, (map)->ioh, (offset) )
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#define DRM_READ32(map, offset) bus_space_read_4( (map)->iot, (map)->ioh, (offset) )
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#define DRM_WRITE8(map, offset, val) bus_space_write_1( (map)->iot, (map)->ioh, (offset), (val) )
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#define DRM_WRITE32(map, offset, val) bus_space_write_4( (map)->iot, (map)->ioh, (offset), (val) )
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#define DRM_AGP_FIND_DEVICE() agp_find_device(0)
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#define DRM_PRIV \
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drm_file_t *priv = (drm_file_t *) DRM(find_file_by_proc)(dev, p); \
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if (!priv) { \
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DRM_DEBUG("can't find authenticator\n"); \
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return EINVAL; \
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}
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#define LOCK_TEST_WITH_RETURN(dev, filp) \
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do { \
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if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) || \
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dev->lock.filp != filp) { \
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DRM_ERROR("%s called without lock held\n", \
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__FUNCTION__); \
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return EINVAL; \
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} \
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} while (0)
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#define DRM_UDELAY( udelay ) \
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do { \
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struct timeval tv1, tv2; \
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microtime(&tv1); \
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do { \
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microtime(&tv2); \
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} \
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while (((tv2.tv_sec-tv1.tv_sec)*1000000 + tv2.tv_usec - tv1.tv_usec) < udelay ); \
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} while (0)
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#define DRM_GETSAREA() \
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do { \
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drm_map_list_entry_t *listentry; \
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TAILQ_FOREACH(listentry, dev->maplist, link) { \
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drm_local_map_t *map = listentry->map; \
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if (map->type == _DRM_SHM && \
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map->flags & _DRM_CONTAINS_LOCK) { \
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dev_priv->sarea = map; \
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break; \
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} \
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} \
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} while (0)
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#define DRM_HZ hz
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#define DRM_WAIT_ON( ret, queue, timeout, condition ) \
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while (!condition) { \
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ret = tsleep( (void *)&(queue), PZERO | PCATCH, "drmwtq", (timeout) ); \
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if ( ret ) \
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return ret; \
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}
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#define DRM_ERR(v) v
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#define DRM_COPY_TO_USER_IOCTL(arg1, arg2, arg3) \
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*arg1 = arg2
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#define DRM_COPY_FROM_USER_IOCTL(arg1, arg2, arg3) \
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arg1 = *arg2
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#define DRM_COPY_TO_USER(arg1, arg2, arg3) \
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copyout(arg2, arg1, arg3)
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#define DRM_COPY_FROM_USER(arg1, arg2, arg3) \
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copyin(arg2, arg1, arg3)
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/* Macros for userspace access with checking readability once */
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/* FIXME: can't find equivalent functionality for nocheck yet.
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* It'll be slower than linux, but should be correct.
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*/
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#define DRM_VERIFYAREA_READ( uaddr, size ) \
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(!uvm_useracc((caddr_t)uaddr, size, VM_PROT_READ))
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#define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
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copyin(arg2, arg1, arg3)
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#define DRM_GET_USER_UNCHECKED(val, uaddr) \
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((val) = fuword(uaddr), 0)
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#define DRM_WRITEMEMORYBARRIER( map ) \
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bus_space_barrier((map)->iot, (map)->ioh, 0, (map)->size, 0);
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#define DRM_READMEMORYBARRIER( map ) \
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bus_space_barrier((map)->iot, (map)->ioh, 0, (map)->size, BUS_SPACE_BARRIER_READ);
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#define DRM_WAKEUP(w) wakeup((void *)w)
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#define DRM_WAKEUP_INT(w) wakeup(w)
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#define DRM_INIT_WAITQUEUE( queue ) do {} while (0)
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#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
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typedef struct drm_chipinfo
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{
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int vendor;
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int device;
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int supported;
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char *name;
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} drm_chipinfo_t;
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#define cpu_to_le32(x) (x) /* FIXME */
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typedef u_int32_t dma_addr_t;
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typedef volatile long atomic_t;
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typedef u_int32_t cycles_t;
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typedef u_int32_t u32;
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typedef u_int16_t u16;
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typedef u_int8_t u8;
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typedef dev_type_ioctl(d_ioctl_t);
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typedef vaddr_t vm_offset_t;
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/* FIXME */
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#define atomic_set(p, v) (*(p) = (v))
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#define atomic_read(p) (*(p))
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#define atomic_inc(p) (*(p) += 1)
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#define atomic_dec(p) (*(p) -= 1)
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#define atomic_add(n, p) (*(p) += (n))
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#define atomic_sub(n, p) (*(p) -= (n))
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/* FIXME */
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#define atomic_add_int(p, v) *(p) += v
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#define atomic_subtract_int(p, v) *(p) -= v
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#define atomic_set_int(p, bits) *(p) |= (bits)
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#define atomic_clear_int(p, bits) *(p) &= ~(bits)
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/* Fake this */
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static __inline int
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atomic_cmpset_int(__volatile__ int *dst, int old, int new)
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{
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int s = splhigh();
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if (*dst==old) {
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*dst = new;
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splx(s);
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return 1;
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}
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splx(s);
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return 0;
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}
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static __inline atomic_t
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test_and_set_bit(int b, atomic_t *p)
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{
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int s = splhigh();
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unsigned int m = 1<<b;
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unsigned int r = *p & m;
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*p |= m;
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splx(s);
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return r;
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}
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static __inline void
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clear_bit(int b, atomic_t *p)
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{
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atomic_clear_int(p + (b >> 5), 1 << (b & 0x1f));
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}
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static __inline void
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set_bit(int b, atomic_t *p)
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{
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atomic_set_int(p + (b >> 5), 1 << (b & 0x1f));
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}
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static __inline int
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test_bit(int b, atomic_t *p)
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{
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return p[b >> 5] & (1 << (b & 0x1f));
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}
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static __inline int
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find_first_zero_bit(atomic_t *p, int max)
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{
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int b;
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for (b = 0; b < max; b += 32) {
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if (p[b >> 5] != ~0) {
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for (;;) {
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if ((p[b >> 5] & (1 << (b & 0x1f))) == 0)
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return b;
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b++;
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}
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}
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}
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return max;
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}
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#define spldrm() spltty()
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#define jiffies hardclock_ticks
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/* Redefinitions to make templating easy */
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#define wait_queue_head_t atomic_t
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#define agp_memory void
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/* Macros to make printf easier */
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#define DRM_ERROR(fmt, arg...) \
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do { \
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printf("error: [" DRM_NAME ":%s] *ERROR* ", __func__ ); \
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printf( fmt,## arg ); \
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} while (0)
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#define DRM_MEM_ERROR(area, fmt, arg...) \
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printf("error: [" DRM_NAME ":%s:%s] *ERROR* " fmt , \
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__func__, DRM(mem_stats)[area].name ,## arg)
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#define DRM_INFO(fmt, arg...) printf("info: " "[" DRM_NAME "] " fmt ,## arg)
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#if DRM_DEBUG_CODE
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#define DRM_DEBUG(fmt, arg...) \
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do { \
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if (DRM(flags) & DRM_FLAG_DEBUG) \
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printf("[" DRM_NAME ":%s] " fmt , __FUNCTION__ ,## arg); \
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} while (0)
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#else
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#define DRM_DEBUG(fmt, arg...) do { } while (0)
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#endif
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#define DRM_PROC_LIMIT (PAGE_SIZE-80)
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#define DRM_SYSCTL_PRINT(fmt, arg...) \
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snprintf(buf, sizeof(buf), fmt, ##arg); \
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error = SYSCTL_OUT(req, buf, strlen(buf)); \
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if (error) return error;
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#define DRM_SYSCTL_PRINT_RET(ret, fmt, arg...) \
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snprintf(buf, sizeof(buf), fmt, ##arg); \
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error = SYSCTL_OUT(req, buf, strlen(buf)); \
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if (error) { ret; return error; }
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#define DRM_FIND_MAP(dest, o) \
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do { \
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drm_map_list_entry_t *listentry; \
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TAILQ_FOREACH(listentry, dev->maplist, link) { \
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if ( listentry->map->offset == o ) { \
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dest = listentry->map; \
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break; \
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} \
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} \
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} while (0)
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/* Internal functions */
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/* drm_drv.h */
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extern dev_type_ioctl(DRM(ioctl));
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extern dev_type_open(DRM(open));
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extern dev_type_close(DRM(close));
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extern dev_type_read(DRM(read));
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extern dev_type_poll(DRM(poll));
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extern dev_type_mmap(DRM(mmap));
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extern int DRM(open_helper)(dev_t kdev, int flags, int fmt,
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DRM_STRUCTPROC *p, drm_device_t *dev);
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extern drm_file_t *DRM(find_file_by_proc)(drm_device_t *dev,
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DRM_STRUCTPROC *p);
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extern int DRM(sysctl_init)(drm_device_t *dev);
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extern int DRM(sysctl_cleanup)(drm_device_t *dev);
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