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path: root/bsd-core/drm_memory.c
AgeCommit message (Expand)Author
2008-09-10Remove incomplete and obsolete free/net/open code.vehemens
2008-09-07[FreeBSD] Implement drm_ioremap_wc() to set a range of mem to write-combiningRobert Noland
2008-08-29Fix drm_realloc when you're reallocing into something smaller.Tomas Carnecky
2008-05-27[FreeBSD] Convert from drm_device_t to struct drm_device for consistency.Eric Anholt
2007-08-15BSD: Replace brief description in each file's first line with doxygen later on.Eric Anholt
2005-11-08Initial port of savage to FreeBSD for the AGP and !ShadowStatus case. AddsEric Anholt
2005-04-16Use /*- to begin license blocks in BSD code to reduce diffs against FreeBSDEric Anholt
2005-02-05- Implement drm_initmap, and extend it with the resource number to helpEric Anholt
2004-11-06Commit first pieces of port to OpenBSD, done by Martin Lexa (martin atEric Anholt
2004-11-06Remove the vestiges of the memory-debug code.Eric Anholt
2004-11-06Commit WIP of BSD conversion to core model. Compiles for r128, radeon, butEric Anholt
2004-08-14Hopefully proper fix for corrupted driver name in memcontrol list.Eric Anholt
2004-07-06Fix module loading on alpha by not referencing MTRR symbols onEric Anholt
2003-10-24Move the REALLY_HAVE_AGP endif above the mtrr functions. Broke tdfx module.Eric Anholt
2003-10-20Clean up BSD MTRR handling. The NetBSD code is untested, but it's my bestEric Anholt
2003-08-29Add DRM(calloc), which is convenient, used by the new sis code, and takesEric Anholt
2003-08-19- Remove $FreeBSD$ tags as they weren't too useful and merges are now beingEric Anholt
2003-04-26Move the memory functions with debugging info to drm_memory_debug.h, andEric Anholt
2003-04-25Merge from FreeBSD-current.Eric Anholt
2003-03-29Remove dead vma code and remove the unused devstate struct definition.Eric Anholt
2003-03-11Merge back from FreeBSD-current, adding FreeBSD ID tags to aid futureEric Anholt
2003-02-21Merge from bsd-4-0-0-branch.Eric Anholt
2002-07-05merged bsd-3-0-0-branchAlan Hourihane
2002-03-06first pass at merging mesa 4.0 kernel drivers into new bsd-3-0-0 branch.Alan Hourihane
2002-01-27Initial revisionDavid Dawes
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-06 13:28:23 +0000
ut restriction, including without limitation * 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 * VA LINUX SYSTEMS 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" /** * Initialize the DMA data. * * \param dev DRM device. * \return zero on success or a negative value on failure. * * Allocate and initialize a drm_device_dma structure. */ int drm_dma_setup(struct drm_device *dev) { int i; dev->dma = drm_alloc(sizeof(*dev->dma), DRM_MEM_DRIVER); if (!dev->dma) return -ENOMEM; memset(dev->dma, 0, sizeof(*dev->dma)); for (i = 0; i <= DRM_MAX_ORDER; i++) memset(&dev->dma->bufs[i], 0, sizeof(dev->dma->bufs[0])); return 0; } /** * Cleanup the DMA resources. * * \param dev DRM device. * * Free all pages associated with DMA buffers, the buffers and pages lists, and * finally the drm_device::dma structure itself. */ void drm_dma_takedown(struct drm_device *dev) { struct drm_device_dma *dma = dev->dma; int i, j; if (!dma) return; /* Clear dma buffers */ for (i = 0; i <= DRM_MAX_ORDER; i++) { if (dma->bufs[i].seg_count) { DRM_DEBUG("order %d: buf_count = %d," " seg_count = %d\n", i, dma->bufs[i].buf_count, dma->bufs[i].seg_count); for (j = 0; j < dma->bufs[i].seg_count; j++) { if (dma->bufs[i].seglist[j]) { drm_pci_free(dev, dma->bufs[i].seglist[j]); } } drm_free(dma->bufs[i].seglist, dma->bufs[i].seg_count * sizeof(*dma->bufs[0].seglist), DRM_MEM_SEGS); } if (dma->bufs[i].buf_count) { for (j = 0; j < dma->bufs[i].buf_count; j++) { if (dma->bufs[i].buflist[j].dev_private) { drm_free(dma->bufs[i].buflist[j]. dev_private, dma->bufs[i].buflist[j]. dev_priv_size, DRM_MEM_BUFS); } } drm_free(dma->bufs[i].buflist, dma->bufs[i].buf_count * sizeof(*dma->bufs[0].buflist), DRM_MEM_BUFS); } } if (dma->buflist) { drm_free(dma->buflist, dma->buf_count * sizeof(*dma->buflist), DRM_MEM_BUFS); } if (dma->pagelist) { drm_free(dma->pagelist, dma->page_count * sizeof(*dma->pagelist), DRM_MEM_PAGES); } drm_free(dev->dma, sizeof(*dev->dma), DRM_MEM_DRIVER); dev->dma = NULL; } /** * Free a buffer. * * \param dev DRM device. * \param buf buffer to free. * * Resets the fields of \p buf. */ void drm_free_buffer(struct drm_device *dev, struct drm_buf *buf) { if (!buf) return; buf->waiting = 0; buf->pending = 0; buf->file_priv = NULL; buf->used = 0; if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE) && waitqueue_active(&buf->dma_wait)) { wake_up_interruptible(&buf->dma_wait); } } /** * Reclaim the buffers. * * \param file_priv DRM file private. * * Frees each buffer associated with \p file_priv not already on the hardware. */ void drm_core_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv) { struct drm_device_dma *dma = dev->dma; int i; if (!dma) return; for (i = 0; i < dma->buf_count; i++) { if (dma->buflist[i]->file_priv == file_priv) { switch (dma->buflist[i]->list) { case DRM_LIST_NONE: drm_free_buffer(dev, dma->buflist[i]); break; case DRM_LIST_WAIT: dma->buflist[i]->list = DRM_LIST_RECLAIM; break; default: /* Buffer already on hardware. */ break; } } } } EXPORT_SYMBOL(drm_core_reclaim_buffers);
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-06 13:28:23 +0000