X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fchar%2Fdrm%2Fi915_dma.c;h=9f4b8ce4c05e60b8df3ad70080075b919c6bf8cb;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=7300a09dbd5c2102b6d3762b854fe8edd5a3d03b;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git diff --git a/drivers/char/drm/i915_dma.c b/drivers/char/drm/i915_dma.c index 7300a09db..9f4b8ce4c 100644 --- a/drivers/char/drm/i915_dma.c +++ b/drivers/char/drm/i915_dma.c @@ -1,34 +1,36 @@ /* i915_dma.c -- DMA support for the I915 -*- linux-c -*- */ -/************************************************************************** - * +/* * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. * All Rights Reserved. - * - **************************************************************************/ + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + */ #include "drmP.h" #include "drm.h" #include "i915_drm.h" #include "i915_drv.h" -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} -}; - -int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls); - /* Really want an OS-independent resettable timer. Would like to have * this loop run for (eg) 3 sec, but have the timer reset every time * the head pointer changes, so that EBUSY only happens if the ring @@ -75,32 +77,31 @@ void i915_kernel_lost_context(drm_device_t * dev) dev_priv->sarea_priv->perf_boxes |= I915_BOX_RING_EMPTY; } -int i915_dma_cleanup(drm_device_t * dev) +static int i915_dma_cleanup(drm_device_t * dev) { /* Make sure interrupts are disabled here because the uninstall ioctl * may not have been called from userspace and after dev_private * 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->hw_status_page) { - drm_pci_free(dev, PAGE_SIZE, dev_priv->hw_status_page, - dev_priv->dma_status_page); + if (dev_priv->status_page_dmah) { + drm_pci_free(dev, dev_priv->status_page_dmah); /* Need to rewrite hardware status page */ 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; } @@ -144,7 +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; @@ -171,16 +172,18 @@ static int i915_initialize(drm_device_t * dev, dev_priv->allow_batchbuffer = 1; /* Program Hardware Status Page */ - dev_priv->hw_status_page = drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE, - 0xffffffff, - &dev_priv->dma_status_page); + dev_priv->status_page_dmah = drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE, + 0xffffffff); - if (!dev_priv->hw_status_page) { + if (!dev_priv->status_page_dmah) { dev->dev_private = (void *)dev_priv; i915_dma_cleanup(dev); DRM_ERROR("Can not allocate hardware status page\n"); return DRM_ERR(ENOMEM); } + dev_priv->hw_status_page = dev_priv->status_page_dmah->vaddr; + dev_priv->dma_status_page = dev_priv->status_page_dmah->busaddr; + memset(dev_priv->hw_status_page, 0, PAGE_SIZE); DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page); @@ -192,7 +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; @@ -227,7 +230,7 @@ static int i915_resume(drm_device_t * dev) return 0; } -int i915_dma_init(DRM_IOCTL_ARGS) +static int i915_dma_init(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_i915_private_t *dev_priv; @@ -239,8 +242,8 @@ 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); @@ -249,7 +252,7 @@ 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; @@ -293,7 +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: @@ -341,18 +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) { @@ -362,9 +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; } @@ -398,6 +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) { @@ -426,6 +450,7 @@ static int i915_dispatch_cmdbuffer(drm_device_t * dev, return ret; } + i915_emit_breadcrumb(dev); return 0; } @@ -470,14 +495,7 @@ 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; } @@ -538,7 +556,7 @@ static int i915_quiescent(drm_device_t * dev) return i915_wait_ring(dev, dev_priv->ring.Size - 8, __FUNCTION__); } -int i915_flush_ioctl(DRM_IOCTL_ARGS) +static int i915_flush_ioctl(DRM_IOCTL_ARGS) { DRM_DEVICE; @@ -547,7 +565,7 @@ int i915_flush_ioctl(DRM_IOCTL_ARGS) return i915_quiescent(dev); } -int i915_batchbuffer(DRM_IOCTL_ARGS) +static int i915_batchbuffer(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; @@ -581,7 +599,7 @@ int i915_batchbuffer(DRM_IOCTL_ARGS) return ret; } -int i915_cmdbuffer(DRM_IOCTL_ARGS) +static int i915_cmdbuffer(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; @@ -617,18 +635,7 @@ int i915_cmdbuffer(DRM_IOCTL_ARGS) return 0; } -int i915_do_cleanup_pageflip(drm_device_t * dev) -{ - drm_i915_private_t *dev_priv = dev->dev_private; - - DRM_DEBUG("%s\n", __FUNCTION__); - if (dev_priv->current_page != 0) - i915_dispatch_flip(dev); - - return 0; -} - -int i915_flip_bufs(DRM_IOCTL_ARGS) +static int i915_flip_bufs(DRM_IOCTL_ARGS) { DRM_DEVICE; @@ -639,7 +646,7 @@ int i915_flip_bufs(DRM_IOCTL_ARGS) return i915_dispatch_flip(dev); } -int i915_getparam(DRM_IOCTL_ARGS) +static int i915_getparam(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_i915_private_t *dev_priv = dev->dev_private; @@ -661,8 +668,11 @@ 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); } @@ -674,7 +684,7 @@ int i915_getparam(DRM_IOCTL_ARGS) return 0; } -int i915_setparam(DRM_IOCTL_ARGS) +static int i915_setparam(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_i915_private_t *dev_priv = dev->dev_private; @@ -706,20 +716,65 @@ 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) +{ + /* 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 ) { + 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, 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); + +/** + * Determine if the device really is AGP or not. + * + * All Intel graphics chipsets are treated as AGP, even if they are really + * PCI-e. + * + * \param dev The device to be tested. + * + * \returns + * A value of 1 is always retured to indictate every i9x5 is AGP. + */ +int i915_driver_device_is_agp(drm_device_t * dev) +{ + return 1; +}