From 14945ada16218e9f918c24e0d702979fae9b07f6 Mon Sep 17 00:00:00 2001 From: David Dawes Date: Sun, 27 Jan 2002 18:23:04 +0000 Subject: Import of XFree86 4.2.0 --- bsd/gamma/gamma_dma.c | 526 +++++++++++------------------------------ bsd/gamma/gamma_drv.c | 634 ++++---------------------------------------------- bsd/gamma/gamma_drv.h | 86 +++++-- 3 files changed, 251 insertions(+), 995 deletions(-) (limited to 'bsd/gamma') diff --git a/bsd/gamma/gamma_dma.c b/bsd/gamma/gamma_dma.c index 07d8248b..fd0da710 100644 --- a/bsd/gamma/gamma_dma.c +++ b/bsd/gamma/gamma_dma.c @@ -1,4 +1,4 @@ -/* gamma_dma.c -- DMA support for GMX 2000 -*- c -*- +/* gamma_dma.c -- DMA support for GMX 2000 -*- linux-c -*- * Created: Fri Mar 19 14:30:16 1999 by faith@precisioninsight.com * * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. @@ -11,11 +11,11 @@ * 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 @@ -23,77 +23,36 @@ * 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. - * + * * Authors: * Rickard E. (Rik) Faith * */ -#define __NO_VERSION__ + + +#include "gamma.h" #include "drmP.h" #include "gamma_drv.h" -#include -#include -#include -#include -#include - -/* WARNING!!! MAGIC NUMBER!!! The number of regions already added to the - kernel must be specified here. Currently, the number is 2. This must - match the order the X server uses for instantiating register regions , - or must be passed in a new ioctl. */ -#define GAMMA_REG(reg) \ - (2 \ - + ((reg < 0x1000) \ - ? 0 \ - : ((reg < 0x10000) ? 1 : ((reg < 0x11000) ? 2 : 3)))) - -#define GAMMA_OFF(reg) \ - ((reg < 0x1000) \ - ? reg \ - : ((reg < 0x10000) \ - ? (reg - 0x1000) \ - : ((reg < 0x11000) \ - ? (reg - 0x10000) \ - : (reg - 0x11000)))) - -#define GAMMA_BASE(reg) ((unsigned long)dev->maplist[GAMMA_REG(reg)]->handle) -#define GAMMA_ADDR(reg) (GAMMA_BASE(reg) + GAMMA_OFF(reg)) -#define GAMMA_DEREF(reg) *(__volatile__ int *)GAMMA_ADDR(reg) -#define GAMMA_READ(reg) GAMMA_DEREF(reg) -#define GAMMA_WRITE(reg,val) do { GAMMA_DEREF(reg) = val; } while (0) - -#define GAMMA_BROADCASTMASK 0x9378 -#define GAMMA_COMMANDINTENABLE 0x0c48 -#define GAMMA_DMAADDRESS 0x0028 -#define GAMMA_DMACOUNT 0x0030 -#define GAMMA_FILTERMODE 0x8c00 -#define GAMMA_GCOMMANDINTFLAGS 0x0c50 -#define GAMMA_GCOMMANDMODE 0x0c40 -#define GAMMA_GCOMMANDSTATUS 0x0c60 -#define GAMMA_GDELAYTIMER 0x0c38 -#define GAMMA_GDMACONTROL 0x0060 -#define GAMMA_GINTENABLE 0x0808 -#define GAMMA_GINTFLAGS 0x0810 -#define GAMMA_INFIFOSPACE 0x0018 -#define GAMMA_OUTFIFOWORDS 0x0020 -#define GAMMA_OUTPUTFIFO 0x2000 -#define GAMMA_SYNC 0x8c40 -#define GAMMA_SYNC_TAG 0x0188 - -static __inline void gamma_dma_dispatch(drm_device_t *dev, - vm_offset_t address, - vm_size_t length) + +static __inline__ void gamma_dma_dispatch(drm_device_t *dev, unsigned long address, + unsigned long length) { - GAMMA_WRITE(GAMMA_DMAADDRESS, vtophys(address)); + drm_gamma_private_t *dev_priv = + (drm_gamma_private_t *)dev->dev_private; + + GAMMA_WRITE(GAMMA_DMAADDRESS, DRM_OS_VTOPHYS((void *)address)); while (GAMMA_READ(GAMMA_GCOMMANDSTATUS) != 4) ; GAMMA_WRITE(GAMMA_DMACOUNT, length / 4); } -static __inline void gamma_dma_quiescent_single(drm_device_t *dev) +void gamma_dma_quiescent_single(drm_device_t *dev) { + drm_gamma_private_t *dev_priv = + (drm_gamma_private_t *)dev->dev_private; + while (GAMMA_READ(GAMMA_DMACOUNT)) ; while (GAMMA_READ(GAMMA_INFIFOSPACE) < 3) @@ -101,15 +60,18 @@ static __inline void gamma_dma_quiescent_single(drm_device_t *dev) GAMMA_WRITE(GAMMA_FILTERMODE, 1 << 10); GAMMA_WRITE(GAMMA_SYNC, 0); - + do { while (!GAMMA_READ(GAMMA_OUTFIFOWORDS)) ; } while (GAMMA_READ(GAMMA_OUTPUTFIFO) != GAMMA_SYNC_TAG); } -static __inline void gamma_dma_quiescent_dual(drm_device_t *dev) +void gamma_dma_quiescent_dual(drm_device_t *dev) { + drm_gamma_private_t *dev_priv = + (drm_gamma_private_t *)dev->dev_private; + while (GAMMA_READ(GAMMA_DMACOUNT)) ; while (GAMMA_READ(GAMMA_INFIFOSPACE) < 3) @@ -119,7 +81,7 @@ static __inline void gamma_dma_quiescent_dual(drm_device_t *dev) GAMMA_WRITE(GAMMA_FILTERMODE, 1 << 10); GAMMA_WRITE(GAMMA_SYNC, 0); - + /* Read from first MX */ do { while (!GAMMA_READ(GAMMA_OUTFIFOWORDS)) @@ -133,43 +95,43 @@ static __inline void gamma_dma_quiescent_dual(drm_device_t *dev) } while (GAMMA_READ(GAMMA_OUTPUTFIFO + 0x10000) != GAMMA_SYNC_TAG); } -static __inline void gamma_dma_ready(drm_device_t *dev) +void gamma_dma_ready(drm_device_t *dev) { + drm_gamma_private_t *dev_priv = + (drm_gamma_private_t *)dev->dev_private; + while (GAMMA_READ(GAMMA_DMACOUNT)) ; } -static __inline int gamma_dma_is_ready(drm_device_t *dev) +static __inline__ int gamma_dma_is_ready(drm_device_t *dev) { + drm_gamma_private_t *dev_priv = + (drm_gamma_private_t *)dev->dev_private; + return !GAMMA_READ(GAMMA_DMACOUNT); } -static void gamma_dma_service(void *arg) +void gamma_dma_service( DRM_OS_IRQ_ARGS) { - drm_device_t *dev = (drm_device_t *)arg; - drm_device_dma_t *dma = dev->dma; - - atomic_inc(&dev->total_irq); + drm_device_t *dev = (drm_device_t *)device; + drm_device_dma_t *dma = dev->dma; + drm_gamma_private_t *dev_priv = + (drm_gamma_private_t *)dev->dev_private; + + atomic_inc(&dev->counts[6]); /* _DRM_STAT_IRQ */ GAMMA_WRITE(GAMMA_GDELAYTIMER, 0xc350/2); /* 0x05S */ GAMMA_WRITE(GAMMA_GCOMMANDINTFLAGS, 8); GAMMA_WRITE(GAMMA_GINTFLAGS, 0x2001); if (gamma_dma_is_ready(dev)) { /* Free previous buffer */ - if (test_and_set_bit(0, &dev->dma_flag)) { - atomic_inc(&dma->total_missed_free); - return; - } + if (test_and_set_bit(0, &dev->dma_flag)) return; if (dma->this_buffer) { - drm_free_buffer(dev, dma->this_buffer); + gamma_free_buffer(dev, dma->this_buffer); dma->this_buffer = NULL; } clear_bit(0, &dev->dma_flag); -#if 0 - /* Dispatch new buffer */ - queue_task(&dev->tq, &tq_immediate); - mark_bh(IMMEDIATE_BH); -#endif } } @@ -182,22 +144,19 @@ static int gamma_do_dma(drm_device_t *dev, int locked) int retcode = 0; drm_device_dma_t *dma = dev->dma; #if DRM_DMA_HISTOGRAM - struct timespec dma_start, dma_stop; + cycles_t dma_start, dma_stop; #endif - if (test_and_set_bit(0, &dev->dma_flag)) { - atomic_inc(&dma->total_missed_dma); - return EBUSY; - } - + if (test_and_set_bit(0, &dev->dma_flag)) DRM_OS_RETURN( EBUSY ); + #if DRM_DMA_HISTOGRAM - getnanotime(&dma_start); + dma_start = get_cycles(); #endif if (!dma->next_buffer) { DRM_ERROR("No next_buffer\n"); clear_bit(0, &dev->dma_flag); - return EINVAL; + DRM_OS_RETURN( EINVAL ); } buf = dma->next_buffer; @@ -208,23 +167,23 @@ static int gamma_do_dma(drm_device_t *dev, int locked) buf->context, buf->idx, length); if (buf->list == DRM_LIST_RECLAIM) { - drm_clear_next_buffer(dev); - drm_free_buffer(dev, buf); + gamma_clear_next_buffer(dev); + gamma_free_buffer(dev, buf); clear_bit(0, &dev->dma_flag); - return EINVAL; + DRM_OS_RETURN( EINVAL ); } if (!length) { DRM_ERROR("0 length buffer\n"); - drm_clear_next_buffer(dev); - drm_free_buffer(dev, buf); + gamma_clear_next_buffer(dev); + gamma_free_buffer(dev, buf); clear_bit(0, &dev->dma_flag); return 0; } - + if (!gamma_dma_is_ready(dev)) { clear_bit(0, &dev->dma_flag); - return EBUSY; + DRM_OS_RETURN( EBUSY ); } if (buf->while_locked) { @@ -234,11 +193,10 @@ static int gamma_do_dma(drm_device_t *dev, int locked) buf->idx, buf->pid); } } else { - if (!locked && !drm_lock_take(&dev->lock.hw_lock->lock, + if (!locked && !gamma_lock_take(&dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT)) { - atomic_inc(&dma->total_missed_lock); clear_bit(0, &dev->dma_flag); - return EBUSY; + DRM_OS_RETURN( EBUSY ); } } @@ -246,13 +204,14 @@ static int gamma_do_dma(drm_device_t *dev, int locked) && !(dev->queuelist[buf->context]->flags & _DRM_CONTEXT_PRESERVED)) { /* PRE: dev->last_context != buf->context */ - if (drm_context_switch(dev, dev->last_context, buf->context)) { - drm_clear_next_buffer(dev); - drm_free_buffer(dev, buf); + if (DRM(context_switch)(dev, dev->last_context, + buf->context)) { + DRM(clear_next_buffer)(dev); + DRM(free_buffer)(dev, buf); } retcode = EBUSY; goto cleanup; - + /* POST: we will wait for the context switch and will dispatch on a later call when dev->last_context == buf->context. @@ -260,23 +219,23 @@ static int gamma_do_dma(drm_device_t *dev, int locked) TIME! */ } - drm_clear_next_buffer(dev); + gamma_clear_next_buffer(dev); buf->pending = 1; buf->waiting = 0; buf->list = DRM_LIST_PEND; #if DRM_DMA_HISTOGRAM - getnanotime(&buf->time_dispatched); + buf->time_dispatched = get_cycles(); #endif gamma_dma_dispatch(dev, address, length); - drm_free_buffer(dev, dma->this_buffer); + gamma_free_buffer(dev, dma->this_buffer); dma->this_buffer = buf; - atomic_add(length, &dma->total_bytes); - atomic_inc(&dma->total_dmas); + atomic_inc(&dev->counts[7]); /* _DRM_STAT_DMA */ + atomic_add(length, &dev->counts[8]); /* _DRM_STAT_PRIMARY */ if (!buf->while_locked && !dev->context_flag && !locked) { - if (drm_lock_free(dev, &dev->lock.hw_lock->lock, + if (gamma_lock_free(dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT)) { DRM_ERROR("\n"); } @@ -286,15 +245,19 @@ cleanup: clear_bit(0, &dev->dma_flag); #if DRM_DMA_HISTOGRAM - getnanotime(&dma_stop); - timespecsub(&dma_stop, &dma_start); - atomic_inc(&dev->histo.ctx[drm_histogram_slot(&dma_stop)]); + dma_stop = get_cycles(); + atomic_inc(&dev->histo.dma[gamma_histogram_slot(dma_stop - dma_start)]); #endif - return retcode; + DRM_OS_RETURN( retcode ); } -static void gamma_dma_schedule_wrapper(void *dev) +static void gamma_dma_timer_bh(unsigned long dev) +{ + gamma_dma_schedule((drm_device_t *)dev, 0); +} + +void gamma_dma_immediate_bh(DRM_OS_TASKQUEUE_ARGS) { gamma_dma_schedule(dev, 0); } @@ -310,24 +273,24 @@ int gamma_dma_schedule(drm_device_t *dev, int locked) int expire = 20; drm_device_dma_t *dma = dev->dma; #if DRM_DMA_HISTOGRAM - struct timespec schedule_start; + cycles_t schedule_start; #endif if (test_and_set_bit(0, &dev->interrupt_flag)) { /* Not reentrant */ - atomic_inc(&dma->total_missed_sched); - return EBUSY; + atomic_inc(&dev->counts[10]); /* _DRM_STAT_MISSED */ + DRM_OS_RETURN( EBUSY ); } - missed = atomic_read(&dma->total_missed_sched); + missed = atomic_read(&dev->counts[10]); #if DRM_DMA_HISTOGRAM - getnanotime(&schedule_start); + schedule_start = get_cycles(); #endif again: if (dev->context_flag) { clear_bit(0, &dev->interrupt_flag); - return EBUSY; + DRM_OS_RETURN( EBUSY ); } if (dma->next_buffer) { /* Unsent buffer that was previously @@ -335,23 +298,18 @@ again: because the lock could not be obtained or the DMA engine wasn't ready. Try again. */ - atomic_inc(&dma->total_tried); - if (!(retcode = gamma_do_dma(dev, locked))) { - atomic_inc(&dma->total_hit); - ++processed; - } + if (!(retcode = gamma_do_dma(dev, locked))) ++processed; } else { do { - next = drm_select_queue(dev, - gamma_dma_schedule_wrapper); + next = gamma_select_queue(dev, gamma_dma_timer_bh); if (next >= 0) { q = dev->queuelist[next]; - buf = drm_waitlist_get(&q->waitlist); + buf = gamma_waitlist_get(&q->waitlist); dma->next_buffer = buf; dma->next_queue = q; if (buf && buf->list == DRM_LIST_RECLAIM) { - drm_clear_next_buffer(dev); - drm_free_buffer(dev, buf); + gamma_clear_next_buffer(dev); + gamma_free_buffer(dev, buf); } } } while (next >= 0 && !dma->next_buffer); @@ -363,33 +321,26 @@ again: } if (--expire) { - if (missed != atomic_read(&dma->total_missed_sched)) { - atomic_inc(&dma->total_lost); + if (missed != atomic_read(&dev->counts[10])) { if (gamma_dma_is_ready(dev)) goto again; } if (processed && gamma_dma_is_ready(dev)) { - atomic_inc(&dma->total_lost); processed = 0; goto again; } } - + clear_bit(0, &dev->interrupt_flag); - + #if DRM_DMA_HISTOGRAM - { - struct timespec ts; - getnanotime(&ts); - timespecsub(&ts, &schedule_start); - atomic_inc(&dev->histo.schedule[drm_histogram_slot(&ts)]); - } + atomic_inc(&dev->histo.schedule[gamma_histogram_slot(get_cycles() + - schedule_start)]); #endif return retcode; } static int gamma_dma_priority(drm_device_t *dev, drm_dma_t *d) { - struct proc *p = curproc; unsigned long address; unsigned long length; int must_free = 0; @@ -399,7 +350,7 @@ static int gamma_dma_priority(drm_device_t *dev, drm_dma_t *d) drm_buf_t *buf; drm_buf_t *last_buf = NULL; drm_device_dma_t *dma = dev->dma; - static int never; + static int never; /* Turn off interrupt handling */ while (test_and_set_bit(0, &dev->interrupt_flag)) { @@ -408,7 +359,7 @@ static int gamma_dma_priority(drm_device_t *dev, drm_dma_t *d) return retcode; } if (!(d->flags & _DRM_DMA_WHILE_LOCKED)) { - while (!drm_lock_take(&dev->lock.hw_lock->lock, + while (!gamma_lock_take(&dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT)) { retcode = tsleep(&never, PZERO|PCATCH, "gamp2", 1); if (retcode) @@ -416,7 +367,6 @@ static int gamma_dma_priority(drm_device_t *dev, drm_dma_t *d) } ++must_free; } - atomic_inc(&dma->total_prio); for (i = 0; i < d->send_count; i++) { idx = d->send_indices[i]; @@ -426,15 +376,15 @@ static int gamma_dma_priority(drm_device_t *dev, drm_dma_t *d) continue; } buf = dma->buflist[ idx ]; - if (buf->pid != p->p_pid) { + if (buf->pid != DRM_OS_CURRENTPID) { DRM_ERROR("Process %d using buffer owned by %d\n", - p->p_pid, buf->pid); + DRM_OS_CURRENTPID, buf->pid); retcode = EINVAL; goto cleanup; } if (buf->list != DRM_LIST_NONE) { DRM_ERROR("Process %d using %d's buffer on list %d\n", - p->p_pid, buf->pid, buf->list); + DRM_OS_CURRENTPID, buf->pid, buf->list); retcode = EINVAL; goto cleanup; } @@ -467,14 +417,13 @@ static int gamma_dma_priority(drm_device_t *dev, drm_dma_t *d) goto cleanup; } buf->pending = 1; - + if (dev->last_context != buf->context && !(dev->queuelist[buf->context]->flags & _DRM_CONTEXT_PRESERVED)) { - atomic_inc(&dev->context_wait); - /* PRE: dev->last_context != buf->context */ - drm_context_switch(dev, dev->last_context, - buf->context); + /* PRE: dev->last_context != buf->context */ + DRM(context_switch)(dev, dev->last_context, + buf->context); /* POST: we will wait for the context switch and will dispatch on a later call when dev->last_context == buf->context. @@ -482,7 +431,6 @@ static int gamma_dma_priority(drm_device_t *dev, drm_dma_t *d) TIME! */ retcode = tsleep(&dev->context_wait, PZERO|PCATCH, "gamctx", 0); - atomic_dec(&dev->context_wait); if (retcode) goto cleanup; if (dev->last_context != buf->context) { @@ -493,15 +441,15 @@ static int gamma_dma_priority(drm_device_t *dev, drm_dma_t *d) } #if DRM_DMA_HISTOGRAM - getnanotime(&buf->time_queued); + buf->time_queued = get_cycles(); buf->time_dispatched = buf->time_queued; #endif gamma_dma_dispatch(dev, address, length); - atomic_add(length, &dma->total_bytes); - atomic_inc(&dma->total_dmas); - + atomic_inc(&dev->counts[9]); /* _DRM_STAT_SPECIAL */ + atomic_add(length, &dev->counts[8]); /* _DRM_STAT_PRIMARY */ + if (last_buf) { - drm_free_buffer(dev, last_buf); + gamma_free_buffer(dev, last_buf); } last_buf = buf; } @@ -510,40 +458,40 @@ static int gamma_dma_priority(drm_device_t *dev, drm_dma_t *d) cleanup: if (last_buf) { gamma_dma_ready(dev); - drm_free_buffer(dev, last_buf); + gamma_free_buffer(dev, last_buf); } - + if (must_free && !dev->context_flag) { - if (drm_lock_free(dev, &dev->lock.hw_lock->lock, + if (gamma_lock_free(dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT)) { DRM_ERROR("\n"); } } clear_bit(0, &dev->interrupt_flag); - return retcode; + DRM_OS_RETURN( retcode ); } static int gamma_dma_send_buffers(drm_device_t *dev, drm_dma_t *d) { - struct proc *p = curproc; drm_buf_t *last_buf = NULL; int retcode = 0; drm_device_dma_t *dma = dev->dma; - - if ((retcode = drm_dma_enqueue(dev, d))) { - return retcode; - } - - gamma_dma_schedule(dev, 0); - if (d->flags & _DRM_DMA_BLOCK) { last_buf = dma->buflist[d->send_indices[d->send_count-1]]; atomic_inc(&last_buf->dma_wait); } + if ((retcode = gamma_dma_enqueue(dev, d))) { + if (d->flags & _DRM_DMA_BLOCK) + atomic_dec(&last_buf->dma_wait); + return retcode; + } + + gamma_dma_schedule(dev, 0); + if (d->flags & _DRM_DMA_BLOCK) { - DRM_DEBUG("%d waiting\n", p->p_pid); + DRM_DEBUG("%d waiting\n", DRM_OS_CURRENTPID); for (;;) { retcode = tsleep(&last_buf->dma_wait, PZERO|PCATCH, "gamdw", 0); @@ -553,13 +501,12 @@ static int gamma_dma_send_buffers(drm_device_t *dev, drm_dma_t *d) if (retcode) break; } - - DRM_DEBUG("%d running\n", p->p_pid); atomic_dec(&last_buf->dma_wait); + DRM_DEBUG("%d running\n", DRM_OS_CURRENTPID); if (!retcode || (last_buf->list==DRM_LIST_PEND && !last_buf->pending)) { if (!last_buf->dma_wait) { - drm_free_buffer(dev, last_buf); + gamma_free_buffer(dev, last_buf); } } if (retcode) { @@ -571,254 +518,49 @@ static int gamma_dma_send_buffers(drm_device_t *dev, drm_dma_t *d) last_buf->idx, last_buf->list, last_buf->pid, - p->p_pid); + DRM_OS_CURRENTPID); } } - return retcode; + DRM_OS_RETURN( retcode ); } -int gamma_dma(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +int gamma_dma( DRM_OS_IOCTL ) { - drm_device_t *dev = kdev->si_drv1; + DRM_OS_DEVICE; drm_device_dma_t *dma = dev->dma; int retcode = 0; drm_dma_t d; - d = *(drm_dma_t *) data; - DRM_DEBUG("%d %d: %d send, %d req\n", - p->p_pid, d.context, d.send_count, d.request_count); + DRM_OS_KRNFROMUSR(d, (drm_dma_t *) data, sizeof(d)); - if (d.context == DRM_KERNEL_CONTEXT || d.context >= dev->queue_slots) { - DRM_ERROR("Process %d using context %d\n", - p->p_pid, d.context); - return EINVAL; - } if (d.send_count < 0 || d.send_count > dma->buf_count) { DRM_ERROR("Process %d trying to send %d buffers (of %d max)\n", - p->p_pid, d.send_count, dma->buf_count); - return EINVAL; + DRM_OS_CURRENTPID, d.send_count, dma->buf_count); + DRM_OS_RETURN( EINVAL ); } + if (d.request_count < 0 || d.request_count > dma->buf_count) { DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n", - p->p_pid, d.request_count, dma->buf_count); - return EINVAL; + DRM_OS_CURRENTPID, d.request_count, dma->buf_count); + DRM_OS_RETURN( EINVAL ); } if (d.send_count) { if (d.flags & _DRM_DMA_PRIORITY) retcode = gamma_dma_priority(dev, &d); - else + else retcode = gamma_dma_send_buffers(dev, &d); } d.granted_count = 0; if (!retcode && d.request_count) { - retcode = drm_dma_get_buffers(dev, &d); + retcode = gamma_dma_get_buffers(dev, &d); } DRM_DEBUG("%d returning, granted = %d\n", - p->p_pid, d.granted_count); - *(drm_dma_t *) data = d; + DRM_OS_CURRENTPID, d.granted_count); + DRM_OS_KRNTOUSR((drm_dma_t *) data, d, sizeof(d)); return retcode; } - -int gamma_irq_install(drm_device_t *dev, int irq) -{ - int rid; - int retcode; - - if (!irq) return EINVAL; - - lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); - if (dev->irq) { - lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); - return EBUSY; - } - lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); - - DRM_DEBUG("%d\n", irq); - - dev->context_flag = 0; - dev->interrupt_flag = 0; - dev->dma_flag = 0; - - dev->dma->next_buffer = NULL; - dev->dma->next_queue = NULL; - dev->dma->this_buffer = NULL; - -#if 0 - dev->tq.next = NULL; - dev->tq.sync = 0; - dev->tq.routine = gamma_dma_schedule_tq_wrapper; - dev->tq.data = dev; -#endif - /* Before installing handler */ - GAMMA_WRITE(GAMMA_GCOMMANDMODE, 0); - GAMMA_WRITE(GAMMA_GDMACONTROL, 0); - - /* Install handler */ - rid = 0; - dev->irq = bus_alloc_resource(dev->device, SYS_RES_IRQ, &rid, - 0, ~0, 1, RF_SHAREABLE); - if (!dev->irq) - return ENOENT; - - retcode = bus_setup_intr(dev->device, dev->irq, INTR_TYPE_TTY, - gamma_dma_service, dev, &dev->irqh); - if (retcode) { - bus_release_resource(dev->device, SYS_RES_IRQ, 0, dev->irq); - dev->irq = 0; - return retcode; - } - - /* After installing handler */ - GAMMA_WRITE(GAMMA_GINTENABLE, 0x2001); - GAMMA_WRITE(GAMMA_COMMANDINTENABLE, 0x0008); - GAMMA_WRITE(GAMMA_GDELAYTIMER, 0x39090); - - return 0; -} - -int gamma_irq_uninstall(drm_device_t *dev) -{ - if (!dev->irq) - return EINVAL; - - DRM_DEBUG("%ld\n", rman_get_start(dev->irq)); - - GAMMA_WRITE(GAMMA_GDELAYTIMER, 0); - GAMMA_WRITE(GAMMA_COMMANDINTENABLE, 0); - GAMMA_WRITE(GAMMA_GINTENABLE, 0); - - bus_teardown_intr(dev->device, dev->irq, dev->irqh); - bus_release_resource(dev->device, SYS_RES_IRQ, 0, dev->irq); - dev->irq = 0; - - return 0; -} - - -int gamma_control(dev_t kdev, u_long cmd, caddr_t data, - int flags, struct proc *p) -{ - drm_device_t *dev = kdev->si_drv1; - drm_control_t ctl; - int retcode; - - ctl = *(drm_control_t *) data; - - switch (ctl.func) { - case DRM_INST_HANDLER: - if ((retcode = gamma_irq_install(dev, ctl.irq))) - return retcode; - break; - case DRM_UNINST_HANDLER: - if ((retcode = gamma_irq_uninstall(dev))) - return retcode; - break; - default: - return EINVAL; - } - return 0; -} - -int gamma_lock(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) -{ - drm_device_t *dev = kdev->si_drv1; - int ret = 0; - drm_lock_t lock; - drm_queue_t *q; -#if DRM_DMA_HISTOGRAM - struct timespec start; - - getnanotime(&start); - dev->lck_start = start; -#endif - - lock = *(drm_lock_t *) data; - - if (lock.context == DRM_KERNEL_CONTEXT) { - DRM_ERROR("Process %d using kernel context %d\n", - p->p_pid, lock.context); - return EINVAL; - } - - DRM_DEBUG("%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n", - lock.context, p->p_pid, dev->lock.hw_lock->lock, - lock.flags); - - if (lock.context < 0 || lock.context >= dev->queue_count) - return EINVAL; - q = dev->queuelist[lock.context]; - - ret = drm_flush_block_and_flush(dev, lock.context, lock.flags); - - if (!ret) { - if (_DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock) - != lock.context) { - long j = ticks - dev->lock.lock_time; - - if (j > 0 && j <= DRM_LOCK_SLICE) { - /* Can't take lock if we just had it and - there is contention. */ - static int never; - ret = tsleep(&never, PZERO|PCATCH, - "gaml1", j); - if (ret) - return ret; - } - } - atomic_inc(&dev->lock.lock_queue); - for (;;) { - if (!dev->lock.hw_lock) { - /* Device has been unregistered */ - ret = EINTR; - break; - } - if (drm_lock_take(&dev->lock.hw_lock->lock, - lock.context)) { - dev->lock.pid = p->p_pid; - dev->lock.lock_time = ticks; - atomic_inc(&dev->total_locks); - atomic_inc(&q->total_locks); - break; /* Got lock */ - } - - /* Contention */ - atomic_inc(&dev->total_sleeps); - ret = tsleep(&dev->lock.lock_queue, PZERO|PCATCH, - "gaml2", 0); - if (ret) - break; - } - atomic_dec(&dev->lock.lock_queue); - } - - drm_flush_unblock(dev, lock.context, lock.flags); /* cleanup phase */ - - if (!ret) { - if (lock.flags & _DRM_LOCK_READY) - gamma_dma_ready(dev); - if (lock.flags & _DRM_LOCK_QUIESCENT) { - if (gamma_found() == 1) { - gamma_dma_quiescent_single(dev); - } else { - gamma_dma_quiescent_dual(dev); - } - } - } - DRM_DEBUG("%d %s\n", lock.context, ret ? "interrupted" : "has lock"); - -#if DRM_DMA_HISTOGRAM - { - struct timespec ts; - getnanotime(&ts); - timespecsub(&ts, &start); - atomic_inc(&dev->histo.lacq[drm_histogram_slot(&ts)]); - } -#endif - - return ret; -} diff --git a/bsd/gamma/gamma_drv.c b/bsd/gamma/gamma_drv.c index 8663a2ac..e58d853c 100644 --- a/bsd/gamma/gamma_drv.c +++ b/bsd/gamma/gamma_drv.c @@ -1,4 +1,4 @@ -/* gamma.c -- 3dlabs GMX 2000 driver -*- c -*- +/* gamma.c -- 3dlabs GMX 2000 driver -*- linux-c -*- * Created: Mon Jan 4 08:58:31 1999 by faith@precisioninsight.com * * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. @@ -11,11 +11,11 @@ * 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 @@ -23,607 +23,65 @@ * 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. - * + * * Authors: * Rickard E. (Rik) Faith - * + * Gareth Hughes */ +#include +#include +#include +#include +#include "gamma.h" #include "drmP.h" #include "gamma_drv.h" -#include - -MODULE_DEPEND(gamma, drm, 1, 1, 1); - -#ifndef PCI_DEVICE_ID_3DLABS_GAMMA -#define PCI_DEVICE_ID_3DLABS_GAMMA 0x0008 -#endif -#ifndef PCI_DEVICE_ID_3DLABS_MX -#define PCI_DEVICE_ID_3DLABS_MX 0x0006 -#endif -#ifndef PCI_VENDOR_ID_3DLABS -#define PCI_VENDOR_ID_3DLABS 0x3d3d -#endif - -static int gamma_init(device_t nbdev); -static void gamma_cleanup(device_t nbdev); - -static int gamma_probe(device_t dev) -{ - const char *s = 0; - - switch (pci_get_devid(dev)) { - case 0x00083d3d: - s = "3D Labs Gamma graphics accelerator"; - break; - - case 0x00063d3d: - s = "3D Labs MX graphics accelerator"; - break; - } - - if (s) { - device_set_desc(dev, s); - return 0; - } - - return ENXIO; -} - -static int gamma_attach(device_t dev) -{ - gamma_init(dev); - return 0; -} - -static int gamma_detach(device_t dev) -{ - gamma_cleanup(dev); - return 0; -} - -static device_method_t gamma_methods[] = { - /* Device interface */ - DEVMETHOD(device_probe, gamma_probe), - DEVMETHOD(device_attach, gamma_attach), - DEVMETHOD(device_detach, gamma_detach), - - { 0, 0 } -}; - -static driver_t gamma_driver = { - "drm", - gamma_methods, - sizeof(drm_device_t), -}; - -static devclass_t gamma_devclass; -#define GAMMA_SOFTC(unit) \ - ((drm_device_t *) devclass_get_softc(gamma_devclass, unit)) - -DRIVER_MODULE(if_gamma, pci, gamma_driver, gamma_devclass, 0, 0); - -#define GAMMA_NAME "gamma" -#define GAMMA_DESC "3dlabs GMX 2000" -#define GAMMA_DATE "20000606" -#define GAMMA_MAJOR 1 -#define GAMMA_MINOR 0 -#define GAMMA_PATCHLEVEL 0 +#define DRIVER_AUTHOR "VA Linux Systems Inc." -#define CDEV_MAJOR 200 +#define DRIVER_NAME "gamma" +#define DRIVER_DESC "3DLabs gamma" +#define DRIVER_DATE "20010216" -static struct cdevsw gamma_cdevsw = { - /* open */ gamma_open, - /* close */ gamma_close, - /* read */ drm_read, - /* write */ drm_write, - /* ioctl */ gamma_ioctl, - /* poll */ nopoll, - /* mmap */ drm_mmap, - /* strategy */ nostrategy, - /* name */ "gamma", - /* maj */ CDEV_MAJOR, - /* dump */ nodump, - /* psize */ nopsize, - /* flags */ D_TTY | D_TRACKCLOSE, - /* bmaj */ -1 -}; +#define DRIVER_MAJOR 1 +#define DRIVER_MINOR 0 +#define DRIVER_PATCHLEVEL 0 -static drm_ioctl_desc_t gamma_ioctls[] = { - [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { gamma_version, 0, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { drm_getunique, 0, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = { drm_getmagic, 0, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { drm_irq_busid, 0, 1 }, +#define DRIVER_IOCTLS \ + [DRM_IOCTL_NR(DRM_IOCTL_DMA)] = { gamma_dma, 1, 0 } - [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { drm_setunique, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { drm_block, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = { drm_unblock, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { gamma_control, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { drm_authmagic, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = { drm_addmap, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = { drm_addbufs, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)] = { drm_markbufs, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = { drm_infobufs, 1, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = { drm_mapbufs, 1, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { drm_freebufs, 1, 0 }, - - [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { drm_addctx, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { drm_rmctx, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { drm_modctx, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { drm_getctx, 1, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { drm_switchctx, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { drm_newctx, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { drm_resctx, 1, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { drm_adddraw, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { drm_rmdraw, 1, 1 }, - [DRM_IOCTL_NR(DRM_IOCTL_DMA)] = { gamma_dma, 1, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { gamma_lock, 1, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { gamma_unlock, 1, 0 }, - [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { drm_finish, 1, 0 }, +/* List acquired from http://www.yourvote.com/pci/pcihdr.h and xc/xc/programs/Xserver/hw/xfree86/common/xf86PciInfo.h + * Please report to anholt@teleport.com inaccuracies or if a chip you have works that is marked unsupported here. + */ +drm_chipinfo_t DRM(devicelist)[] = { + {0x3d3d, 0x0008, 1, "3DLabs Gamma"}, + {0, 0, 0, NULL} }; -#define GAMMA_IOCTL_COUNT DRM_ARRAY_SIZE(gamma_ioctls) - -static int devices = 0; - -static int gamma_setup(drm_device_t *dev) -{ - int i; - - device_busy(dev->device); - - atomic_set(&dev->ioctl_count, 0); - atomic_set(&dev->vma_count, 0); - dev->buf_use = 0; - atomic_set(&dev->buf_alloc, 0); - - drm_dma_setup(dev); - - atomic_set(&dev->total_open, 0); - atomic_set(&dev->total_close, 0); - atomic_set(&dev->total_ioctl, 0); - atomic_set(&dev->total_irq, 0); - atomic_set(&dev->total_ctx, 0); - atomic_set(&dev->total_locks, 0); - atomic_set(&dev->total_unlocks, 0); - atomic_set(&dev->total_contends, 0); - atomic_set(&dev->total_sleeps, 0); - - for (i = 0; i < DRM_HASH_SIZE; i++) { - dev->magiclist[i].head = NULL; - dev->magiclist[i].tail = NULL; - } - dev->maplist = NULL; - dev->map_count = 0; - dev->vmalist = NULL; - dev->lock.hw_lock = NULL; - dev->lock.lock_queue = 0; - dev->queue_count = 0; - dev->queue_reserved = 0; - dev->queue_slots = 0; - dev->queuelist = NULL; - dev->irq = 0; - dev->context_flag = 0; - dev->interrupt_flag = 0; - dev->dma_flag = 0; - dev->last_context = 0; - dev->last_switch = 0; - dev->last_checked = 0; - callout_init(&dev->timer); - dev->context_wait = 0; -#if DRM_DMA_HISTO - memset(&dev->histo, 0, sizeof(dev->histo)); -#endif - timespecclear(&dev->ctx_start); - timespecclear(&dev->lck_start); - - dev->buf_rp = dev->buf; - dev->buf_wp = dev->buf; - dev->buf_end = dev->buf + DRM_BSZ; - dev->buf_sigio = NULL; - - DRM_DEBUG("\n"); - - /* The kernel's context could be created here, but is now created - in drm_dma_enqueue. This is more resource-efficient for - hardware that does not do DMA, but may mean that - drm_select_queue fails between the time the interrupt is - initialized and the time the queues are initialized. */ - - return 0; -} - - -static int -gamma_takedown(drm_device_t *dev) -{ - int i; - drm_magic_entry_t *pt, *next; - drm_map_t *map; - drm_vma_entry_t *vma, *vma_next; - - DRM_DEBUG("\n"); - - if (dev->irq) gamma_irq_uninstall(dev); - - lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); - callout_stop(&dev->timer); - - if (dev->devname) { - drm_free(dev->devname, strlen(dev->devname)+1, DRM_MEM_DRIVER); - dev->devname = NULL; - } - - if (dev->unique) { - drm_free(dev->unique, strlen(dev->unique)+1, DRM_MEM_DRIVER); - dev->unique = NULL; - dev->unique_len = 0; - } - /* Clear pid list */ - for (i = 0; i < DRM_HASH_SIZE; i++) { - for (pt = dev->magiclist[i].head; pt; pt = next) { - next = pt->next; - drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC); - } - dev->magiclist[i].head = dev->magiclist[i].tail = NULL; - } - - /* Clear vma list (only built for debugging) */ - if (dev->vmalist) { - for (vma = dev->vmalist; vma; vma = vma_next) { - vma_next = vma->next; - drm_free(vma, sizeof(*vma), DRM_MEM_VMAS); - } - dev->vmalist = NULL; - } - - /* Clear map area and mtrr information */ - if (dev->maplist) { - for (i = 0; i < dev->map_count; i++) { - map = dev->maplist[i]; - switch (map->type) { - case _DRM_REGISTERS: - case _DRM_FRAME_BUFFER: -#ifdef CONFIG_MTRR - if (map->mtrr >= 0) { - int retcode; - retcode = mtrr_del(map->mtrr, - map->offset, - map->size); - DRM_DEBUG("mtrr_del = %d\n", retcode); - } -#endif - drm_ioremapfree(map->handle, map->size); - break; - case _DRM_SHM: - drm_free_pages((unsigned long)map->handle, - drm_order(map->size) - - PAGE_SHIFT, - DRM_MEM_SAREA); - break; - case _DRM_AGP: - /* Do nothing here, because this is all - handled in the AGP/GART driver. */ - break; - } - drm_free(map, sizeof(*map), DRM_MEM_MAPS); - } - drm_free(dev->maplist, - dev->map_count * sizeof(*dev->maplist), - DRM_MEM_MAPS); - dev->maplist = NULL; - dev->map_count = 0; - } - - if (dev->queuelist) { - for (i = 0; i < dev->queue_count; i++) { - drm_waitlist_destroy(&dev->queuelist[i]->waitlist); - if (dev->queuelist[i]) { - drm_free(dev->queuelist[i], - sizeof(*dev->queuelist[0]), - DRM_MEM_QUEUES); - dev->queuelist[i] = NULL; - } - } - drm_free(dev->queuelist, - dev->queue_slots * sizeof(*dev->queuelist), - DRM_MEM_QUEUES); - dev->queuelist = NULL; - } - - drm_dma_takedown(dev); - - dev->queue_count = 0; - if (dev->lock.hw_lock) { - dev->lock.hw_lock = NULL; /* SHM removed */ - dev->lock.pid = 0; - wakeup(&dev->lock.lock_queue); - } - lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); - - device_unbusy(dev->device); - - return 0; -} - -int gamma_found(void) -{ - return devices; -} - -static int -gamma_find_devices(device_t dev) -{ - device_t *children, child; - int nchildren, i; - int count = 0; - - if (device_get_children(device_get_parent(dev), &children, &nchildren)) - return 0; - - for (i = 0; i < nchildren; i++) { - child = children[i]; - - if (pci_get_slot(dev) == pci_get_slot(child) && - pci_get_vendor(child) == PCI_VENDOR_ID_3DLABS && - pci_get_device(child) == PCI_DEVICE_ID_3DLABS_MX) { - count++; - } - } - free(children, M_TEMP); - - /* we don't currently support more than two */ - if (count > 2) count = 2; - - return count; -} - -/* gamma_init is called via gamma_attach at module load time */ - -static int -gamma_init(device_t nbdev) -{ - drm_device_t *dev = device_get_softc(nbdev); - - DRM_DEBUG("\n"); - - memset((void *)dev, 0, sizeof(*dev)); - simple_lock_init(&dev->count_lock); - lockinit(&dev->dev_lock, PZERO, "drmlk", 0, 0); - -#if 0 /* XXX use getenv I guess */ - drm_parse_options(gamma); -#endif - devices = gamma_find_devices(nbdev); - if (devices == 0) return -1; - -#if 0 - if ((retcode = misc_register(&gamma_misc))) { - DRM_ERROR("Cannot register \"%s\"\n", GAMMA_NAME); - return retcode; - } -#endif - dev->device = nbdev; - dev->devnode = make_dev(&gamma_cdevsw, - device_get_unit(nbdev), - DRM_DEV_UID, - DRM_DEV_GID, - DRM_DEV_MODE, - GAMMA_NAME); - dev->name = GAMMA_NAME; - - drm_mem_init(); - drm_sysctl_init(dev); - - DRM_INFO("Initialized %s %d.%d.%d %s on minor %d with %d MX devices\n", - GAMMA_NAME, - GAMMA_MAJOR, - GAMMA_MINOR, - GAMMA_PATCHLEVEL, - GAMMA_DATE, - device_get_unit(nbdev), - devices); - - return 0; -} - -/* gamma_cleanup is called via gamma_detach at module unload time. */ - -static void -gamma_cleanup(device_t nbdev) -{ - drm_device_t *dev = device_get_softc(nbdev); - - DRM_DEBUG("\n"); - - drm_sysctl_cleanup(dev); -#if 0 - if (misc_deregister(&gamma_misc)) { - DRM_ERROR("Cannot unload module\n"); - } else { - DRM_INFO("Module unloaded\n"); - } -#endif - device_busy(dev->device); - gamma_takedown(dev); -} - -SYSUNINIT(gamma_cleanup, SI_SUB_DRIVERS, SI_ORDER_ANY, gamma_cleanup, 0); - -#if 0 -int gamma_version(struct inode *inode, struct file *filp, unsigned int cmd, - unsigned long arg) -{ - drm_version_t version; - int len; - - copy_from_user_ret(&version, - (drm_version_t *)arg, - sizeof(version), - -EFAULT); - -#define DRM_COPY(name,value) \ - len = strlen(value); \ - if (len > name##_len) len = name##_len; \ - name##_len = strlen(value); \ - if (len && name) { \ - copy_to_user_ret(name, value, len, -EFAULT); \ - } - - version.version_major = GAMMA_MAJOR; - version.version_minor = GAMMA_MINOR; - version.version_patchlevel = GAMMA_PATCHLEVEL; - - DRM_COPY(version.name, GAMMA_NAME); - DRM_COPY(version.date, GAMMA_DATE); - DRM_COPY(version.desc, GAMMA_DESC); - - copy_to_user_ret((drm_version_t *)arg, - &version, - sizeof(version), - -EFAULT); - return 0; -} -#endif - -int -gamma_open(dev_t kdev, int flags, int fmt, struct proc *p) -{ - drm_device_t *dev = GAMMA_SOFTC(minor(kdev)); - int retcode = 0; - - DRM_DEBUG("open_count = %d\n", dev->open_count); - - device_busy(dev->device); - if (!(retcode = drm_open_helper(kdev, flags, fmt, p, dev))) { - atomic_inc(&dev->total_open); - simple_lock(&dev->count_lock); - if (!dev->open_count++) { - simple_unlock(&dev->count_lock); - retcode = gamma_setup(dev); - } - simple_unlock(&dev->count_lock); - } - device_unbusy(dev->device); - - return retcode; -} - -int -gamma_close(dev_t kdev, int flags, int fmt, struct proc *p) -{ - drm_device_t *dev = kdev->si_drv1; - int retcode = 0; - - DRM_DEBUG("open_count = %d\n", dev->open_count); - if (!(retcode = drm_close(kdev, flags, fmt, p))) { - atomic_inc(&dev->total_close); - simple_lock(&dev->count_lock); - if (!--dev->open_count) { - if (atomic_read(&dev->ioctl_count) || dev->blocked) { - DRM_ERROR("Device busy: %d %d\n", - atomic_read(&dev->ioctl_count), - dev->blocked); - simple_unlock(&dev->count_lock); - return EBUSY; - } - simple_unlock(&dev->count_lock); - return gamma_takedown(dev); - } - simple_unlock(&dev->count_lock); - } - return retcode; -} - -/* drm_ioctl is called whenever a process performs an ioctl on /dev/drm. */ - -int -gamma_ioctl(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) -{ - int nr = DRM_IOCTL_NR(cmd); - drm_device_t *dev = kdev->si_drv1; - drm_file_t *priv; - int retcode = 0; - drm_ioctl_desc_t *ioctl; - d_ioctl_t *func; - - priv = drm_find_file_by_proc(dev, p); - if (!priv) { - DRM_DEBUG("can't find authenticator\n"); - return EINVAL; - } - - atomic_inc(&dev->ioctl_count); - atomic_inc(&dev->total_ioctl); - ++priv->ioctl_count; - - DRM_DEBUG("pid = %d, cmd = 0x%02lx, nr = 0x%02x, auth = %d\n", - p->p_pid, cmd, nr, priv->authenticated); - - switch (cmd) { - case FIOSETOWN: - return fsetown(*(int *)data, &dev->buf_sigio); - case FIOGETOWN: - *(int *) data = fgetown(dev->buf_sigio); - return 0; - } - if (nr >= GAMMA_IOCTL_COUNT) { - retcode = EINVAL; - } else { - ioctl = &gamma_ioctls[nr]; - func = ioctl->func; +#define __HAVE_COUNTERS 5 +#define __HAVE_COUNTER6 _DRM_STAT_IRQ +#define __HAVE_COUNTER7 _DRM_STAT_DMA +#define __HAVE_COUNTER8 _DRM_STAT_PRIMARY +#define __HAVE_COUNTER9 _DRM_STAT_SPECIAL +#define __HAVE_COUNTER10 _DRM_STAT_MISSED - if (!func) { - DRM_DEBUG("no function\n"); - retcode = EINVAL; - } else if ((ioctl->root_only && suser(p)) - || (ioctl->auth_needed && !priv->authenticated)) { - retcode = EACCES; - } else { - retcode = (func)(kdev, cmd, data, flags, p); - } - } - - atomic_dec(&dev->ioctl_count); - return retcode; -} -int gamma_unlock(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) -{ - drm_device_t *dev = kdev->si_drv1; - drm_lock_t *lockp = (drm_lock_t *) data; +#include "drm_auth.h" +#include "drm_bufs.h" +#include "drm_context.h" +#include "drm_dma.h" +#include "drm_drawable.h" +#include "drm_drv.h" - if (lockp->context == DRM_KERNEL_CONTEXT) { - DRM_ERROR("Process %d using kernel context %d\n", - p->p_pid, lockp->context); - return -EINVAL; - } - DRM_DEBUG("%d frees lock (%d holds)\n", - lockp->context, - _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); - atomic_inc(&dev->total_unlocks); - if (_DRM_LOCK_IS_CONT(dev->lock.hw_lock->lock)) - atomic_inc(&dev->total_contends); - drm_lock_transfer(dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT); - gamma_dma_schedule(dev, 1); - if (!dev->context_flag) { - if (drm_lock_free(dev, &dev->lock.hw_lock->lock, - DRM_KERNEL_CONTEXT)) { - DRM_ERROR("\n"); - } - } +#include "drm_fops.h" +#include "drm_init.h" +#include "drm_ioctl.h" +#include "drm_lists.h" +#include "drm_lock.h" +#include "drm_memory.h" +#include "drm_vm.h" +#include "drm_sysctl.h" -#if DRM_DMA_HISTOGRAM - { - struct timespec ts; - getnanotime(&ts); - timespecsub(&ts, &dev->lck_start); - atomic_inc(&dev->histo.lhld[drm_histogram_slot(&ts)]); - } -#endif - - return 0; -} +DRIVER_MODULE(gamma, pci, gamma_driver, gamma_devclass, 0, 0); diff --git a/bsd/gamma/gamma_drv.h b/bsd/gamma/gamma_drv.h index b7c6df5d..f8665516 100644 --- a/bsd/gamma/gamma_drv.h +++ b/bsd/gamma/gamma_drv.h @@ -1,4 +1,4 @@ -/* gamma_drv.h -- Private header for 3dlabs GMX 2000 driver -*- c -*- +/* gamma_drv.h -- Private header for 3dlabs GMX 2000 driver -*- linux-c -*- * Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.com * * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. @@ -11,11 +11,11 @@ * 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 @@ -23,26 +23,82 @@ * 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. - * + * + * Authors: + * Rickard E. (Rik) Faith + * */ #ifndef _GAMMA_DRV_H_ #define _GAMMA_DRV_H_ - /* gamma_drv.c */ -extern d_open_t gamma_open; -extern d_close_t gamma_close; -extern d_ioctl_t gamma_ioctl; -extern d_ioctl_t gamma_version; -extern d_ioctl_t gamma_dma; -extern d_ioctl_t gamma_lock; -extern d_ioctl_t gamma_unlock; -extern d_ioctl_t gamma_control; + +typedef struct drm_gamma_private { + drm_map_t *buffers; + drm_map_t *mmio0; + drm_map_t *mmio1; + drm_map_t *mmio2; + drm_map_t *mmio3; +} drm_gamma_private_t; + +#define LOCK_TEST_WITH_RETURN( dev ) \ +do { \ + if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) || \ + dev->lock.pid != DRM_OS_CURRENTPID ) { \ + DRM_ERROR( "%s called without lock held\n", \ + __FUNCTION__ ); \ + DRM_OS_RETURN( EINVAL ); \ + } \ +} while (0) + + +extern void gamma_dma_ready(drm_device_t *dev); +extern void gamma_dma_quiescent_single(drm_device_t *dev); +extern void gamma_dma_quiescent_dual(drm_device_t *dev); /* gamma_dma.c */ extern int gamma_dma_schedule(drm_device_t *dev, int locked); -extern int gamma_irq_install(drm_device_t *dev, int irq); -extern int gamma_irq_uninstall(drm_device_t *dev); +extern int gamma_dma( DRM_OS_IOCTL ); +extern int gamma_find_devices(void); extern int gamma_found(void); + +#define GAMMA_OFF(reg) \ + ((reg < 0x1000) \ + ? reg \ + : ((reg < 0x10000) \ + ? (reg - 0x1000) \ + : ((reg < 0x11000) \ + ? (reg - 0x10000) \ + : (reg - 0x11000)))) + +#define GAMMA_BASE(reg) ((unsigned long) \ + ((reg < 0x1000) ? dev_priv->mmio0->handle : \ + ((reg < 0x10000) ? dev_priv->mmio1->handle : \ + ((reg < 0x11000) ? dev_priv->mmio2->handle : \ + dev_priv->mmio3->handle)))) + +#define GAMMA_ADDR(reg) (GAMMA_BASE(reg) + GAMMA_OFF(reg)) +#define GAMMA_DEREF(reg) *(__volatile__ int *)GAMMA_ADDR(reg) +#define GAMMA_READ(reg) GAMMA_DEREF(reg) +#define GAMMA_WRITE(reg,val) do { GAMMA_DEREF(reg) = val; } while (0) + +#define GAMMA_BROADCASTMASK 0x9378 +#define GAMMA_COMMANDINTENABLE 0x0c48 +#define GAMMA_DMAADDRESS 0x0028 +#define GAMMA_DMACOUNT 0x0030 +#define GAMMA_FILTERMODE 0x8c00 +#define GAMMA_GCOMMANDINTFLAGS 0x0c50 +#define GAMMA_GCOMMANDMODE 0x0c40 +#define GAMMA_GCOMMANDSTATUS 0x0c60 +#define GAMMA_GDELAYTIMER 0x0c38 +#define GAMMA_GDMACONTROL 0x0060 +#define GAMMA_GINTENABLE 0x0808 +#define GAMMA_GINTFLAGS 0x0810 +#define GAMMA_INFIFOSPACE 0x0018 +#define GAMMA_OUTFIFOWORDS 0x0020 +#define GAMMA_OUTPUTFIFO 0x2000 +#define GAMMA_SYNC 0x8c40 +#define GAMMA_SYNC_TAG 0x0188 + #endif -- cgit v1.2.3