From 292da616fe1f936ca78a3fa8e1b1b19883e343b6 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Fri, 9 Dec 2011 16:11:06 +1000 Subject: nouveau: pull in major libdrm rewrite Redesigned primarily to allow us to better take advantage of BO's having fixed GPU virtual addresses on GeForce 8 and up, and to reduce the overhead of handling relocations on earlier chipsets. Signed-off-by: Ben Skeggs Signed-off-by: Christoph Bumiller --- nouveau/nouveau.c | 489 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 489 insertions(+) create mode 100644 nouveau/nouveau.c (limited to 'nouveau/nouveau.c') diff --git a/nouveau/nouveau.c b/nouveau/nouveau.c new file mode 100644 index 00000000..699b9b76 --- /dev/null +++ b/nouveau/nouveau.c @@ -0,0 +1,489 @@ +/* + * Copyright 2012 Red Hat Inc. + * + * 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, 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 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 + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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. + * + * Authors: Ben Skeggs + */ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include "libdrm_lists.h" +#include "nouveau_drm.h" + +#include "nouveau.h" +#include "private.h" + +#ifdef DEBUG +uint32_t nouveau_debug = 0; + +static void +debug_init(char *args) +{ + if (args) { + int n = strtol(args, NULL, 0); + if (n >= 0) + nouveau_debug = n; + } +} +#endif + +/* this is the old libdrm's version of nouveau_device_wrap(), the symbol + * is kept here to prevent AIGLX from crashing if the DDX is linked against + * the new libdrm, but the DRI driver against the old + */ +int +nouveau_device_open_existing(struct nouveau_device **pdev, int close, int fd, + drm_context_t ctx) +{ + return -EACCES; +} + +int +nouveau_device_wrap(int fd, int close, struct nouveau_device **pdev) +{ + struct nouveau_device_priv *nvdev = calloc(1, sizeof(*nvdev)); + struct nouveau_device *dev = &nvdev->base; + uint64_t chipset, vram, gart, bousage; + drmVersionPtr ver; + int ret; + +#ifdef DEBUG + debug_init(getenv("NOUVEAU_LIBDRM_DEBUG")); +#endif + + if (!nvdev) + return -ENOMEM; + nvdev->base.fd = fd; + + ver = drmGetVersion(fd); + if (ver) dev->drm_version = (ver->version_major << 24) | + (ver->version_minor << 8) | + ver->version_patchlevel; + drmFreeVersion(ver); + + if ( dev->drm_version != 0x00000010 && + (dev->drm_version < 0x01000000 || + dev->drm_version >= 0x02000000)) { + nouveau_device_del(&dev); + return -EINVAL; + } + + ret = nouveau_getparam(dev, NOUVEAU_GETPARAM_CHIPSET_ID, &chipset); + if (ret == 0) + ret = nouveau_getparam(dev, NOUVEAU_GETPARAM_FB_SIZE, &vram); + if (ret == 0) + ret = nouveau_getparam(dev, NOUVEAU_GETPARAM_AGP_SIZE, &gart); + if (ret) { + nouveau_device_del(&dev); + return ret; + } + + ret = nouveau_getparam(dev, NOUVEAU_GETPARAM_HAS_BO_USAGE, &bousage); + if (ret == 0) + nvdev->have_bo_usage = (bousage != 0); + + nvdev->close = close; + DRMINITLISTHEAD(&nvdev->bo_list); + nvdev->base.object.oclass = NOUVEAU_DEVICE_CLASS; + nvdev->base.lib_version = 0x01000000; + nvdev->base.chipset = chipset; + nvdev->base.vram_size = vram; + nvdev->base.gart_size = gart; + nvdev->base.vram_limit = (nvdev->base.vram_size * 80) / 100; + nvdev->base.gart_limit = (nvdev->base.gart_size * 80) / 100; + + *pdev = &nvdev->base; + return 0; +} + +int +nouveau_device_open(const char *busid, struct nouveau_device **pdev) +{ + int ret = -ENODEV, fd = drmOpen("nouveau", busid); + if (fd >= 0) { + ret = nouveau_device_wrap(fd, 1, pdev); + if (ret) + drmClose(fd); + } + return ret; +} + +void +nouveau_device_del(struct nouveau_device **pdev) +{ + struct nouveau_device_priv *nvdev = nouveau_device(*pdev); + if (nvdev) { + if (nvdev->close) + drmClose(nvdev->base.fd); + free(nvdev->client); + free(nvdev); + *pdev = NULL; + } +} + +int +nouveau_getparam(struct nouveau_device *dev, uint64_t param, uint64_t *value) +{ + struct drm_nouveau_getparam r = { param, 0 }; + int fd = dev->fd, ret = + drmCommandWriteRead(fd, DRM_NOUVEAU_GETPARAM, &r, sizeof(r)); + *value = r.value; + return ret; +} + +int +nouveau_setparam(struct nouveau_device *dev, uint64_t param, uint64_t value) +{ + struct drm_nouveau_setparam r = { param, value }; + return drmCommandWrite(dev->fd, DRM_NOUVEAU_SETPARAM, &r, sizeof(r)); +} + +int +nouveau_client_new(struct nouveau_device *dev, struct nouveau_client **pclient) +{ + struct nouveau_device_priv *nvdev = nouveau_device(dev); + struct nouveau_client_priv *pcli; + int id = 0, i, ret = -ENOMEM; + uint32_t *clients; + + for (i = 0; i < nvdev->nr_client; i++) { + id = ffs(nvdev->client[i]) - 1; + if (id >= 0) + goto out; + } + + clients = realloc(nvdev->client, sizeof(uint32_t) * (i + 1)); + if (!clients) + return ret; + nvdev->client = clients; + nvdev->client[i] = 0; + nvdev->nr_client++; + +out: + pcli = calloc(1, sizeof(*pcli)); + if (pcli) { + nvdev->client[i] |= (1 << id); + pcli->base.device = dev; + pcli->base.id = (i * 32) + id; + ret = 0; + } + + *pclient = &pcli->base; + return ret; +} + +void +nouveau_client_del(struct nouveau_client **pclient) +{ + struct nouveau_client_priv *pcli = nouveau_client(*pclient); + struct nouveau_device_priv *nvdev; + if (pcli) { + int id = pcli->base.id; + nvdev = nouveau_device(pcli->base.device); + nvdev->client[id / 32] &= ~(1 << (id % 32)); + free(pcli->kref); + free(pcli); + } +} + +int +nouveau_object_new(struct nouveau_object *parent, uint64_t handle, + uint32_t oclass, void *data, uint32_t length, + struct nouveau_object **pobj) +{ + struct nouveau_device *dev; + struct nouveau_object *obj; + int ret = -EINVAL; + + if (length == 0) + length = sizeof(struct nouveau_object *); + obj = malloc(sizeof(*obj) + length); + obj->parent = parent; + obj->handle = handle; + obj->oclass = oclass; + obj->length = length; + obj->data = obj + 1; + if (data) + memcpy(obj->data, data, length); + *(struct nouveau_object **)obj->data = obj; + + dev = nouveau_object_find(obj, NOUVEAU_DEVICE_CLASS); + switch (parent->oclass) { + case NOUVEAU_DEVICE_CLASS: + switch (obj->oclass) { + case NOUVEAU_FIFO_CHANNEL_CLASS: + { + if (dev->chipset < 0xc0) + ret = abi16_chan_nv04(obj); + else + ret = abi16_chan_nvc0(obj); + } + break; + default: + break; + } + break; + case NOUVEAU_FIFO_CHANNEL_CLASS: + switch (obj->oclass) { + case NOUVEAU_NOTIFIER_CLASS: + ret = abi16_ntfy(obj); + break; + default: + ret = abi16_engobj(obj); + break; + } + default: + break; + } + + if (ret) { + free(obj); + return ret; + } + + *pobj = obj; + return 0; +} + +void +nouveau_object_del(struct nouveau_object **pobj) +{ + struct drm_nouveau_gpuobj_free req; + struct nouveau_object *obj = *pobj; + struct nouveau_device *dev; + if (obj) { + dev = nouveau_object_find(obj, NOUVEAU_DEVICE_CLASS); + req.channel = obj->parent->handle; + req.handle = obj->handle; + drmCommandWrite(dev->fd, DRM_NOUVEAU_GPUOBJ_FREE, + &req, sizeof(req)); + } + free(obj); + *pobj = NULL; +} + +void * +nouveau_object_find(struct nouveau_object *obj, uint32_t pclass) +{ + while (obj && obj->oclass != pclass) { + obj = obj->parent; + if (pclass == NOUVEAU_PARENT_CLASS) + break; + } + return obj; +} + +static void +nouveau_bo_del(struct nouveau_bo *bo) +{ + struct nouveau_bo_priv *nvbo = nouveau_bo(bo); + struct drm_gem_close req = { bo->handle }; + DRMLISTDEL(&nvbo->head); + if (bo->map) + munmap(bo->map, bo->size); + drmIoctl(bo->device->fd, DRM_IOCTL_GEM_CLOSE, &req); + free(nvbo); +} + +int +nouveau_bo_new(struct nouveau_device *dev, uint32_t flags, uint32_t align, + uint64_t size, union nouveau_bo_config *config, + struct nouveau_bo **pbo) +{ + struct nouveau_device_priv *nvdev = nouveau_device(dev); + struct nouveau_bo_priv *nvbo = calloc(1, sizeof(*nvbo)); + struct nouveau_bo *bo = &nvbo->base; + int ret; + + if (!nvbo) + return -ENOMEM; + atomic_set(&nvbo->refcnt, 1); + bo->device = dev; + bo->flags = flags; + bo->size = size; + + ret = abi16_bo_init(bo, align, config); + if (ret) { + free(nvbo); + return ret; + } + + DRMLISTADD(&nvbo->head, &nvdev->bo_list); + + *pbo = bo; + return 0; +} + +int +nouveau_bo_wrap(struct nouveau_device *dev, uint32_t handle, + struct nouveau_bo **pbo) +{ + struct nouveau_device_priv *nvdev = nouveau_device(dev); + struct drm_nouveau_gem_info req = { .handle = handle }; + struct nouveau_bo_priv *nvbo; + int ret; + + DRMLISTFOREACHENTRY(nvbo, &nvdev->bo_list, head) { + if (nvbo->base.handle == handle) { + *pbo = NULL; + nouveau_bo_ref(&nvbo->base, pbo); + return 0; + } + } + + ret = drmCommandWriteRead(dev->fd, DRM_NOUVEAU_GEM_INFO, + &req, sizeof(req)); + if (ret) + return ret; + + nvbo = calloc(1, sizeof(*nvbo)); + if (nvbo) { + atomic_set(&nvbo->refcnt, 1); + nvbo->base.device = dev; + abi16_bo_info(&nvbo->base, &req); + DRMLISTADD(&nvbo->head, &nvdev->bo_list); + *pbo = &nvbo->base; + return 0; + } + + return -ENOMEM; +} + +int +nouveau_bo_name_ref(struct nouveau_device *dev, uint32_t name, + struct nouveau_bo **pbo) +{ + struct nouveau_device_priv *nvdev = nouveau_device(dev); + struct nouveau_bo_priv *nvbo; + struct drm_gem_open req = { .name = name }; + int ret; + + DRMLISTFOREACHENTRY(nvbo, &nvdev->bo_list, head) { + if (nvbo->name == name) { + *pbo = NULL; + nouveau_bo_ref(&nvbo->base, pbo); + return 0; + } + } + + ret = drmIoctl(dev->fd, DRM_IOCTL_GEM_OPEN, &req); + if (ret == 0) { + ret = nouveau_bo_wrap(dev, req.handle, pbo); + nouveau_bo((*pbo))->name = name; + } + + return ret; +} + +int +nouveau_bo_name_get(struct nouveau_bo *bo, uint32_t *name) +{ + struct drm_gem_flink req = { .handle = bo->handle }; + struct nouveau_bo_priv *nvbo = nouveau_bo(bo); + if (!nvbo->name) { + int ret = drmIoctl(bo->device->fd, DRM_IOCTL_GEM_FLINK, &req); + if (ret) + return ret; + nvbo->name = req.name; + } + *name = nvbo->name; + return 0; +} + +void +nouveau_bo_ref(struct nouveau_bo *bo, struct nouveau_bo **pref) +{ + struct nouveau_bo *ref = *pref; + if (bo) { + atomic_inc(&nouveau_bo(bo)->refcnt); + } + if (ref) { + if (atomic_dec_and_test(&nouveau_bo(ref)->refcnt)) + nouveau_bo_del(ref); + } + *pref = bo; +} + +int +nouveau_bo_wait(struct nouveau_bo *bo, uint32_t access, + struct nouveau_client *client) +{ + struct nouveau_bo_priv *nvbo = nouveau_bo(bo); + struct drm_nouveau_gem_cpu_prep req; + struct nouveau_pushbuf *push; + int ret = 0; + + if (!(access & NOUVEAU_BO_RDWR)) + return 0; + + push = cli_push_get(client, bo); + if (push && push->channel) + nouveau_pushbuf_kick(push, push->channel); + + if (!nvbo->name && !(nvbo->access & NOUVEAU_BO_WR) && + !( access & NOUVEAU_BO_WR)) + return 0; + + req.handle = bo->handle; + req.flags = 0; + if (access & NOUVEAU_BO_WR) + req.flags |= NOUVEAU_GEM_CPU_PREP_WRITE; + if (access & NOUVEAU_BO_NOBLOCK) + req.flags |= NOUVEAU_GEM_CPU_PREP_NOWAIT; + + do { + ret = drmCommandWrite(bo->device->fd, + DRM_NOUVEAU_GEM_CPU_PREP, + &req, sizeof(req)); + } while (ret == -EAGAIN); + + if (ret == 0) + nvbo->access = 0; + return ret; +} + +int +nouveau_bo_map(struct nouveau_bo *bo, uint32_t access, + struct nouveau_client *client) +{ + struct nouveau_bo_priv *nvbo = nouveau_bo(bo); + if (bo->map == NULL) { + bo->map = mmap(0, bo->size, PROT_READ | PROT_WRITE, + MAP_SHARED, bo->device->fd, nvbo->map_handle); + if (bo->map == MAP_FAILED) { + bo->map = NULL; + return -errno; + } + } + return nouveau_bo_wait(bo, access, client); +} -- cgit v1.2.3