X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fchar%2Fdrm%2Fi915_dma.c;h=1ff4c7ca0bff0421ea39e97d9df98883faa4b071;hb=9d8f057acbd38d8177cf2ffd5e151d52c2477372;hp=34f552f90c4a82aaa857f8955e909c15c0ef28a3;hpb=f5c7f03113fc9c547012cf403aec4b534d575ef0;p=linux-2.6-omap-h63xx.git diff --git a/drivers/char/drm/i915_dma.c b/drivers/char/drm/i915_dma.c index 34f552f90c4..1ff4c7ca0bf 100644 --- a/drivers/char/drm/i915_dma.c +++ b/drivers/char/drm/i915_dma.c @@ -1,7 +1,6 @@ /* i915_dma.c -- DMA support for the I915 -*- linux-c -*- */ -/************************************************************************** - * +/* * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. * All Rights Reserved. * @@ -25,7 +24,7 @@ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * - **************************************************************************/ + */ #include "drmP.h" #include "drm.h" @@ -85,14 +84,14 @@ static int i915_dma_cleanup(drm_device_t * dev) * is freed, it's too late. */ if (dev->irq) - drm_irq_uninstall (dev); + drm_irq_uninstall(dev); if (dev->dev_private) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; if (dev_priv->ring.virtual_start) { - drm_core_ioremapfree( &dev_priv->ring.map, dev); + drm_core_ioremapfree(&dev_priv->ring.map, dev); } if (dev_priv->status_page_dmah) { @@ -101,8 +100,8 @@ static int i915_dma_cleanup(drm_device_t * dev) I915_WRITE(0x02080, 0x1ffff000); } - drm_free (dev->dev_private, sizeof(drm_i915_private_t), - DRM_MEM_DRIVER); + drm_free(dev->dev_private, sizeof(drm_i915_private_t), + DRM_MEM_DRIVER); dev->dev_private = NULL; } @@ -146,7 +145,7 @@ static int i915_initialize(drm_device_t * dev, dev_priv->ring.map.flags = 0; dev_priv->ring.map.mtrr = 0; - drm_core_ioremap( &dev_priv->ring.map, dev ); + drm_core_ioremap(&dev_priv->ring.map, dev); if (dev_priv->ring.map.handle == NULL) { dev->dev_private = (void *)dev_priv; @@ -196,7 +195,7 @@ static int i915_initialize(drm_device_t * dev, return 0; } -static int i915_resume(drm_device_t * dev) +static int i915_dma_resume(drm_device_t * dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; @@ -243,8 +242,8 @@ static int i915_dma_init(DRM_IOCTL_ARGS) switch (init.func) { case I915_INIT_DMA: - dev_priv = drm_alloc (sizeof(drm_i915_private_t), - DRM_MEM_DRIVER); + dev_priv = drm_alloc(sizeof(drm_i915_private_t), + DRM_MEM_DRIVER); if (dev_priv == NULL) return DRM_ERR(ENOMEM); retcode = i915_initialize(dev, dev_priv, &init); @@ -253,7 +252,7 @@ static int i915_dma_init(DRM_IOCTL_ARGS) retcode = i915_dma_cleanup(dev); break; case I915_RESUME_DMA: - retcode = i915_resume(dev); + retcode = i915_dma_resume(dev); break; default: retcode = -EINVAL; @@ -297,7 +296,7 @@ static int do_validate_cmd(int cmd) case 0x1c: return 1; case 0x1d: - switch ((cmd>>16)&0xff) { + switch ((cmd >> 16) & 0xff) { case 0x3: return (cmd & 0x1f) + 2; case 0x4: @@ -345,18 +344,20 @@ static int i915_emit_cmds(drm_device_t * dev, int __user * buffer, int dwords) int i; RING_LOCALS; + if ((dwords+1) * sizeof(int) >= dev_priv->ring.Size - 8) + return DRM_ERR(EINVAL); + + BEGIN_LP_RING(((dwords+1)&~1)); + for (i = 0; i < dwords;) { int cmd, sz; if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i], sizeof(cmd))) return DRM_ERR(EINVAL); -/* printk("%d/%d ", i, dwords); */ - if ((sz = validate_cmd(cmd)) == 0 || i + sz > dwords) return DRM_ERR(EINVAL); - BEGIN_LP_RING(sz); OUT_RING(cmd); while (++i, --sz) { @@ -366,9 +367,13 @@ static int i915_emit_cmds(drm_device_t * dev, int __user * buffer, int dwords) } OUT_RING(cmd); } - ADVANCE_LP_RING(); } + if (dwords & 1) + OUT_RING(0); + + ADVANCE_LP_RING(); + return 0; } @@ -402,6 +407,21 @@ static int i915_emit_box(drm_device_t * dev, return 0; } +static void i915_emit_breadcrumb(drm_device_t *dev) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + RING_LOCALS; + + dev_priv->sarea_priv->last_enqueue = dev_priv->counter++; + + BEGIN_LP_RING(4); + OUT_RING(CMD_STORE_DWORD_IDX); + OUT_RING(20); + OUT_RING(dev_priv->counter); + OUT_RING(0); + ADVANCE_LP_RING(); +} + static int i915_dispatch_cmdbuffer(drm_device_t * dev, drm_i915_cmdbuffer_t * cmd) { @@ -430,6 +450,7 @@ static int i915_dispatch_cmdbuffer(drm_device_t * dev, return ret; } + i915_emit_breadcrumb(dev); return 0; } @@ -476,12 +497,7 @@ static int i915_dispatch_batchbuffer(drm_device_t * dev, dev_priv->sarea_priv->last_enqueue = dev_priv->counter++; - BEGIN_LP_RING(4); - OUT_RING(CMD_STORE_DWORD_IDX); - OUT_RING(20); - OUT_RING(dev_priv->counter); - OUT_RING(0); - ADVANCE_LP_RING(); + i915_emit_breadcrumb(dev); return 0; } @@ -654,8 +670,11 @@ static int i915_getparam(DRM_IOCTL_ARGS) case I915_PARAM_ALLOW_BATCHBUFFER: value = dev_priv->allow_batchbuffer ? 1 : 0; break; + case I915_PARAM_LAST_DISPATCH: + value = READ_BREADCRUMB(dev_priv); + break; default: - DRM_ERROR("Unkown parameter %d\n", param.param); + DRM_ERROR("Unknown parameter %d\n", param.param); return DRM_ERR(EINVAL); } @@ -699,36 +718,49 @@ static int i915_setparam(DRM_IOCTL_ARGS) return 0; } -void i915_driver_pretakedown(drm_device_t *dev) +int i915_driver_load(drm_device_t *dev, unsigned long flags) { - if ( dev->dev_private ) { + /* i915 has 4 more counters */ + dev->counters += 4; + dev->types[6] = _DRM_STAT_IRQ; + dev->types[7] = _DRM_STAT_PRIMARY; + dev->types[8] = _DRM_STAT_SECONDARY; + dev->types[9] = _DRM_STAT_DMA; + + return 0; +} + +void i915_driver_lastclose(drm_device_t * dev) +{ + if (dev->dev_private) { drm_i915_private_t *dev_priv = dev->dev_private; - i915_mem_takedown( &(dev_priv->agp_heap) ); - } - i915_dma_cleanup( dev ); + i915_mem_takedown(&(dev_priv->agp_heap)); + } + i915_dma_cleanup(dev); } -void i915_driver_prerelease(drm_device_t *dev, DRMFILE filp) +void i915_driver_preclose(drm_device_t * dev, DRMFILE filp) { - if ( dev->dev_private ) { + if (dev->dev_private) { drm_i915_private_t *dev_priv = dev->dev_private; - i915_mem_release( dev, filp, dev_priv->agp_heap ); + i915_mem_release(dev, filp, dev_priv->agp_heap); } } drm_ioctl_desc_t i915_ioctls[] = { - [DRM_IOCTL_NR(DRM_I915_INIT)] = {i915_dma_init, 1, 1}, - [DRM_IOCTL_NR(DRM_I915_FLUSH)] = {i915_flush_ioctl, 1, 0}, - [DRM_IOCTL_NR(DRM_I915_FLIP)] = {i915_flip_bufs, 1, 0}, - [DRM_IOCTL_NR(DRM_I915_BATCHBUFFER)] = {i915_batchbuffer, 1, 0}, - [DRM_IOCTL_NR(DRM_I915_IRQ_EMIT)] = {i915_irq_emit, 1, 0}, - [DRM_IOCTL_NR(DRM_I915_IRQ_WAIT)] = {i915_irq_wait, 1, 0}, - [DRM_IOCTL_NR(DRM_I915_GETPARAM)] = {i915_getparam, 1, 0}, - [DRM_IOCTL_NR(DRM_I915_SETPARAM)] = {i915_setparam, 1, 1}, - [DRM_IOCTL_NR(DRM_I915_ALLOC)] = {i915_mem_alloc, 1, 0}, - [DRM_IOCTL_NR(DRM_I915_FREE)] = {i915_mem_free, 1, 0}, - [DRM_IOCTL_NR(DRM_I915_INIT_HEAP)] = {i915_mem_init_heap, 1, 1}, - [DRM_IOCTL_NR(DRM_I915_CMDBUFFER)] = {i915_cmdbuffer, 1, 0} + [DRM_IOCTL_NR(DRM_I915_INIT)] = {i915_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY}, + [DRM_IOCTL_NR(DRM_I915_FLUSH)] = {i915_flush_ioctl, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_I915_FLIP)] = {i915_flip_bufs, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_I915_BATCHBUFFER)] = {i915_batchbuffer, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_I915_IRQ_EMIT)] = {i915_irq_emit, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_I915_IRQ_WAIT)] = {i915_irq_wait, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_I915_GETPARAM)] = {i915_getparam, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_I915_SETPARAM)] = {i915_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY}, + [DRM_IOCTL_NR(DRM_I915_ALLOC)] = {i915_mem_alloc, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_I915_FREE)] = {i915_mem_free, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_I915_INIT_HEAP)] = {i915_mem_init_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY}, + [DRM_IOCTL_NR(DRM_I915_CMDBUFFER)] = {i915_cmdbuffer, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_I915_DESTROY_HEAP)] = { i915_mem_destroy_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY } }; int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);