623 lines
13 KiB
C
623 lines
13 KiB
C
/*
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* Copyright 2007 Nouveau Project
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdint.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <assert.h>
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#include <sys/mman.h>
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#include <sys/ioctl.h>
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#include "nouveau_private.h"
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int
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nouveau_bo_init(struct nouveau_device *dev)
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{
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return 0;
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}
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void
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nouveau_bo_takedown(struct nouveau_device *dev)
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{
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}
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static int
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nouveau_bo_info(struct nouveau_bo_priv *nvbo, struct drm_nouveau_gem_info *arg)
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{
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nvbo->handle = nvbo->base.handle = arg->handle;
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nvbo->domain = arg->domain;
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nvbo->size = arg->size;
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nvbo->offset = arg->offset;
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nvbo->map_handle = arg->map_handle;
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nvbo->base.tile_mode = arg->tile_mode;
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nvbo->base.tile_flags = arg->tile_flags;
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return 0;
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}
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static int
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nouveau_bo_allocated(struct nouveau_bo_priv *nvbo)
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{
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if (nvbo->sysmem || nvbo->handle || (nvbo->flags & NOUVEAU_BO_PIN))
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return 1;
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return 0;
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}
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static int
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nouveau_bo_ualloc(struct nouveau_bo_priv *nvbo)
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{
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if (nvbo->user || nvbo->sysmem) {
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assert(nvbo->sysmem);
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return 0;
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}
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nvbo->sysmem = malloc(nvbo->size);
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if (!nvbo->sysmem)
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return -ENOMEM;
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return 0;
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}
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static void
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nouveau_bo_ufree(struct nouveau_bo_priv *nvbo)
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{
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if (nvbo->sysmem) {
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if (!nvbo->user)
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free(nvbo->sysmem);
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nvbo->sysmem = NULL;
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}
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}
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static void
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nouveau_bo_kfree(struct nouveau_bo_priv *nvbo)
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{
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struct nouveau_device_priv *nvdev = nouveau_device(nvbo->base.device);
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struct drm_gem_close req;
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if (!nvbo->handle)
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return;
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if (nvbo->map) {
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munmap(nvbo->map, nvbo->size);
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nvbo->map = NULL;
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}
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req.handle = nvbo->handle;
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nvbo->handle = 0;
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ioctl(nvdev->fd, DRM_IOCTL_GEM_CLOSE, &req);
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}
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static int
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nouveau_bo_kalloc(struct nouveau_bo_priv *nvbo, struct nouveau_channel *chan)
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{
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struct nouveau_device_priv *nvdev = nouveau_device(nvbo->base.device);
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struct drm_nouveau_gem_new req;
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struct drm_nouveau_gem_info *info = &req.info;
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int ret;
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if (nvbo->handle || (nvbo->flags & NOUVEAU_BO_PIN))
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return 0;
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req.channel_hint = chan ? chan->id : 0;
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req.align = nvbo->align;
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info->size = nvbo->size;
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info->domain = 0;
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if (nvbo->flags & NOUVEAU_BO_VRAM)
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info->domain |= NOUVEAU_GEM_DOMAIN_VRAM;
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if (nvbo->flags & NOUVEAU_BO_GART)
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info->domain |= NOUVEAU_GEM_DOMAIN_GART;
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if (!info->domain) {
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info->domain |= (NOUVEAU_GEM_DOMAIN_VRAM |
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NOUVEAU_GEM_DOMAIN_GART);
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}
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if (nvbo->flags & NOUVEAU_BO_MAP)
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info->domain |= NOUVEAU_GEM_DOMAIN_MAPPABLE;
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info->tile_mode = nvbo->base.tile_mode;
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info->tile_flags = nvbo->base.tile_flags;
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ret = drmCommandWriteRead(nvdev->fd, DRM_NOUVEAU_GEM_NEW,
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&req, sizeof(req));
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if (ret)
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return ret;
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nouveau_bo_info(nvbo, &req.info);
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return 0;
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}
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static int
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nouveau_bo_kmap(struct nouveau_bo_priv *nvbo)
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{
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struct nouveau_device_priv *nvdev = nouveau_device(nvbo->base.device);
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if (nvbo->map)
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return 0;
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if (!nvbo->map_handle)
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return -EINVAL;
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nvbo->map = mmap(0, nvbo->size, PROT_READ | PROT_WRITE,
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MAP_SHARED, nvdev->fd, nvbo->map_handle);
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if (nvbo->map == MAP_FAILED) {
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nvbo->map = NULL;
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return -errno;
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}
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return 0;
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}
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int
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nouveau_bo_new_tile(struct nouveau_device *dev, uint32_t flags, int align,
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int size, uint32_t tile_mode, uint32_t tile_flags,
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struct nouveau_bo **bo)
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{
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struct nouveau_bo_priv *nvbo;
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int ret;
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if (!dev || !bo || *bo)
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return -EINVAL;
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nvbo = calloc(1, sizeof(struct nouveau_bo_priv));
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if (!nvbo)
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return -ENOMEM;
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nvbo->base.device = dev;
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nvbo->base.size = size;
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nvbo->base.tile_mode = tile_mode;
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nvbo->base.tile_flags = tile_flags;
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nvbo->refcount = 1;
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/* Don't set NOUVEAU_BO_PIN here, or nouveau_bo_allocated() will
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* decided the buffer's already allocated when it's not. The
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* call to nouveau_bo_pin() later will set this flag.
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*/
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nvbo->flags = (flags & ~NOUVEAU_BO_PIN);
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nvbo->size = size;
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nvbo->align = align;
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if (flags & NOUVEAU_BO_PIN) {
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ret = nouveau_bo_pin((void *)nvbo, nvbo->flags);
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if (ret) {
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nouveau_bo_ref(NULL, (void *)nvbo);
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return ret;
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}
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}
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*bo = &nvbo->base;
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return 0;
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}
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int
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nouveau_bo_new(struct nouveau_device *dev, uint32_t flags, int align,
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int size, struct nouveau_bo **bo)
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{
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uint32_t tile_flags = 0;
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if (flags & NOUVEAU_BO_TILED) {
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if (flags & NOUVEAU_BO_ZTILE)
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tile_flags = 0x2800;
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else
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tile_flags = 0x7000;
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}
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return nouveau_bo_new_tile(dev, flags, align, size, 0, tile_flags, bo);
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}
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int
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nouveau_bo_user(struct nouveau_device *dev, void *ptr, int size,
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struct nouveau_bo **bo)
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{
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struct nouveau_bo_priv *nvbo;
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int ret;
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ret = nouveau_bo_new(dev, NOUVEAU_BO_MAP, 0, size, bo);
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if (ret)
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return ret;
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nvbo = nouveau_bo(*bo);
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nvbo->sysmem = ptr;
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nvbo->user = 1;
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return 0;
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}
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int
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nouveau_bo_wrap(struct nouveau_device *dev, uint32_t handle,
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struct nouveau_bo **bo)
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{
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struct nouveau_device_priv *nvdev = nouveau_device(dev);
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struct drm_nouveau_gem_info req;
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struct nouveau_bo_priv *nvbo;
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int ret;
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ret = nouveau_bo_new(dev, 0, 0, 0, bo);
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if (ret)
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return ret;
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nvbo = nouveau_bo(*bo);
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req.handle = handle;
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ret = drmCommandWriteRead(nvdev->fd, DRM_NOUVEAU_GEM_INFO,
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&req, sizeof(req));
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if (ret) {
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nouveau_bo_ref(NULL, bo);
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return ret;
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}
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nouveau_bo_info(nvbo, &req);
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nvbo->base.size = nvbo->size;
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return 0;
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}
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int
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nouveau_bo_handle_get(struct nouveau_bo *bo, uint32_t *handle)
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{
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struct nouveau_device_priv *nvdev = nouveau_device(bo->device);
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struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
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int ret;
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if (!bo || !handle)
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return -EINVAL;
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if (!nvbo->global_handle) {
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struct drm_gem_flink req;
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ret = nouveau_bo_kalloc(nvbo, NULL);
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if (ret)
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return ret;
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req.handle = nvbo->handle;
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ret = ioctl(nvdev->fd, DRM_IOCTL_GEM_FLINK, &req);
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if (ret) {
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nouveau_bo_kfree(nvbo);
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return ret;
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}
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nvbo->global_handle = req.name;
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}
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*handle = nvbo->global_handle;
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return 0;
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}
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int
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nouveau_bo_handle_ref(struct nouveau_device *dev, uint32_t handle,
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struct nouveau_bo **bo)
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{
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struct nouveau_device_priv *nvdev = nouveau_device(dev);
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struct nouveau_bo_priv *nvbo;
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struct drm_gem_open req;
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int ret;
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req.name = handle;
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ret = ioctl(nvdev->fd, DRM_IOCTL_GEM_OPEN, &req);
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if (ret) {
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nouveau_bo_ref(NULL, bo);
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return ret;
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}
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ret = nouveau_bo_wrap(dev, req.handle, bo);
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if (ret) {
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nouveau_bo_ref(NULL, bo);
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return ret;
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}
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nvbo = nouveau_bo(*bo);
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nvbo->base.handle = nvbo->handle;
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return 0;
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}
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static void
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nouveau_bo_del(struct nouveau_bo **bo)
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{
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struct nouveau_bo_priv *nvbo;
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if (!bo || !*bo)
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return;
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nvbo = nouveau_bo(*bo);
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*bo = NULL;
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if (--nvbo->refcount)
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return;
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if (nvbo->pending) {
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nvbo->pending = NULL;
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nouveau_pushbuf_flush(nvbo->pending_channel, 0);
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}
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nouveau_bo_ufree(nvbo);
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nouveau_bo_kfree(nvbo);
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free(nvbo);
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}
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int
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nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pbo)
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{
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if (!pbo)
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return -EINVAL;
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if (ref)
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nouveau_bo(ref)->refcount++;
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if (*pbo)
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nouveau_bo_del(pbo);
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*pbo = ref;
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return 0;
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}
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static int
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nouveau_bo_wait(struct nouveau_bo *bo, int cpu_write, int no_wait, int no_block)
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{
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struct nouveau_device_priv *nvdev = nouveau_device(bo->device);
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struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
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struct drm_nouveau_gem_cpu_prep req;
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int ret;
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if (!nvbo->global_handle && !nvbo->write_marker && !cpu_write)
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return 0;
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if (nvbo->pending &&
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(nvbo->pending->write_domains || cpu_write)) {
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nvbo->pending = NULL;
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nouveau_pushbuf_flush(nvbo->pending_channel, 0);
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}
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req.handle = nvbo->handle;
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req.flags = 0;
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if (cpu_write)
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req.flags |= NOUVEAU_GEM_CPU_PREP_WRITE;
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if (no_wait)
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req.flags |= NOUVEAU_GEM_CPU_PREP_NOWAIT;
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if (no_block)
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req.flags |= NOUVEAU_GEM_CPU_PREP_NOBLOCK;
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do {
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ret = drmCommandWrite(nvdev->fd, DRM_NOUVEAU_GEM_CPU_PREP,
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&req, sizeof(req));
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} while (ret == -EAGAIN);
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if (ret)
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return ret;
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if (ret == 0)
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nvbo->write_marker = 0;
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return 0;
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}
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int
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nouveau_bo_map_range(struct nouveau_bo *bo, uint32_t delta, uint32_t size,
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uint32_t flags)
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{
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struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
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int ret;
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if (!nvbo || bo->map)
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return -EINVAL;
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if (!nouveau_bo_allocated(nvbo)) {
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if (nvbo->flags & (NOUVEAU_BO_VRAM | NOUVEAU_BO_GART)) {
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ret = nouveau_bo_kalloc(nvbo, NULL);
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if (ret)
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return ret;
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}
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if (!nouveau_bo_allocated(nvbo)) {
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ret = nouveau_bo_ualloc(nvbo);
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if (ret)
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return ret;
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}
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}
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if (nvbo->sysmem) {
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bo->map = (char *)nvbo->sysmem + delta;
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} else {
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ret = nouveau_bo_kmap(nvbo);
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if (ret)
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return ret;
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if (!(flags & NOUVEAU_BO_NOSYNC)) {
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ret = nouveau_bo_wait(bo, (flags & NOUVEAU_BO_WR),
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(flags & NOUVEAU_BO_NOWAIT), 0);
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if (ret)
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return ret;
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}
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bo->map = (char *)nvbo->map + delta;
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}
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return 0;
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}
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void
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nouveau_bo_map_flush(struct nouveau_bo *bo, uint32_t delta, uint32_t size)
|
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{
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}
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int
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nouveau_bo_map(struct nouveau_bo *bo, uint32_t flags)
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{
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return nouveau_bo_map_range(bo, 0, bo->size, flags);
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}
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void
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nouveau_bo_unmap(struct nouveau_bo *bo)
|
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{
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struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
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|
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if (bo->map && !nvbo->sysmem) {
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struct nouveau_device_priv *nvdev = nouveau_device(bo->device);
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struct drm_nouveau_gem_cpu_fini req;
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|
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req.handle = nvbo->handle;
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drmCommandWrite(nvdev->fd, DRM_NOUVEAU_GEM_CPU_FINI,
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&req, sizeof(req));
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}
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|
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bo->map = NULL;
|
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}
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|
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int
|
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nouveau_bo_pin(struct nouveau_bo *bo, uint32_t flags)
|
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{
|
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struct nouveau_device_priv *nvdev = nouveau_device(bo->device);
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struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
|
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struct drm_nouveau_gem_pin req;
|
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int ret;
|
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|
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if (nvbo->pinned)
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return 0;
|
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|
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/* Ensure we have a kernel object... */
|
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if (!nvbo->flags) {
|
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if (!(flags & (NOUVEAU_BO_VRAM | NOUVEAU_BO_GART)))
|
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return -EINVAL;
|
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nvbo->flags = flags;
|
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}
|
|
|
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if (!nvbo->handle) {
|
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ret = nouveau_bo_kalloc(nvbo, NULL);
|
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if (ret)
|
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return ret;
|
|
}
|
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|
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/* Now force it to stay put :) */
|
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req.handle = nvbo->handle;
|
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req.domain = 0;
|
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if (nvbo->flags & NOUVEAU_BO_VRAM)
|
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req.domain |= NOUVEAU_GEM_DOMAIN_VRAM;
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if (nvbo->flags & NOUVEAU_BO_GART)
|
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req.domain |= NOUVEAU_GEM_DOMAIN_GART;
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|
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ret = drmCommandWriteRead(nvdev->fd, DRM_NOUVEAU_GEM_PIN, &req,
|
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sizeof(struct drm_nouveau_gem_pin));
|
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if (ret)
|
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return ret;
|
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nvbo->offset = req.offset;
|
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nvbo->domain = req.domain;
|
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nvbo->pinned = 1;
|
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nvbo->flags |= NOUVEAU_BO_PIN;
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|
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/* Fill in public nouveau_bo members */
|
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if (nvbo->domain & NOUVEAU_GEM_DOMAIN_VRAM)
|
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bo->flags = NOUVEAU_BO_VRAM;
|
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if (nvbo->domain & NOUVEAU_GEM_DOMAIN_GART)
|
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bo->flags = NOUVEAU_BO_GART;
|
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bo->offset = nvbo->offset;
|
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|
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return 0;
|
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}
|
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|
|
void
|
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nouveau_bo_unpin(struct nouveau_bo *bo)
|
|
{
|
|
struct nouveau_device_priv *nvdev = nouveau_device(bo->device);
|
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struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
|
|
struct drm_nouveau_gem_unpin req;
|
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|
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if (!nvbo->pinned)
|
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return;
|
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|
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req.handle = nvbo->handle;
|
|
drmCommandWrite(nvdev->fd, DRM_NOUVEAU_GEM_UNPIN, &req, sizeof(req));
|
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|
|
nvbo->pinned = bo->offset = bo->flags = 0;
|
|
}
|
|
|
|
int
|
|
nouveau_bo_busy(struct nouveau_bo *bo, uint32_t access)
|
|
{
|
|
return nouveau_bo_wait(bo, (access & NOUVEAU_BO_WR), 1, 1);
|
|
}
|
|
|
|
uint32_t
|
|
nouveau_bo_pending(struct nouveau_bo *bo)
|
|
{
|
|
struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
|
|
uint32_t flags;
|
|
|
|
if (!nvbo->pending)
|
|
return 0;
|
|
|
|
flags = 0;
|
|
if (nvbo->pending->read_domains)
|
|
flags |= NOUVEAU_BO_RD;
|
|
if (nvbo->pending->write_domains)
|
|
flags |= NOUVEAU_BO_WR;
|
|
|
|
return flags;
|
|
}
|
|
|
|
struct drm_nouveau_gem_pushbuf_bo *
|
|
nouveau_bo_emit_buffer(struct nouveau_channel *chan, struct nouveau_bo *bo)
|
|
{
|
|
struct nouveau_pushbuf_priv *nvpb = nouveau_pushbuf(chan->pushbuf);
|
|
struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
|
|
struct drm_nouveau_gem_pushbuf_bo *pbbo;
|
|
struct nouveau_bo *ref = NULL;
|
|
int ret;
|
|
|
|
if (nvbo->pending)
|
|
return nvbo->pending;
|
|
|
|
if (!nvbo->handle) {
|
|
ret = nouveau_bo_kalloc(nvbo, chan);
|
|
if (ret)
|
|
return NULL;
|
|
|
|
if (nvbo->sysmem) {
|
|
void *sysmem_tmp = nvbo->sysmem;
|
|
|
|
nvbo->sysmem = NULL;
|
|
ret = nouveau_bo_map(bo, NOUVEAU_BO_WR);
|
|
if (ret)
|
|
return NULL;
|
|
nvbo->sysmem = sysmem_tmp;
|
|
|
|
memcpy(bo->map, nvbo->sysmem, nvbo->base.size);
|
|
nouveau_bo_ufree(nvbo);
|
|
nouveau_bo_unmap(bo);
|
|
}
|
|
}
|
|
|
|
if (nvpb->nr_buffers >= NOUVEAU_GEM_MAX_BUFFERS)
|
|
return NULL;
|
|
pbbo = nvpb->buffers + nvpb->nr_buffers++;
|
|
nvbo->pending = pbbo;
|
|
nvbo->pending_channel = chan;
|
|
nvbo->pending_refcnt = 0;
|
|
|
|
nouveau_bo_ref(bo, &ref);
|
|
pbbo->user_priv = (uint64_t)(unsigned long)ref;
|
|
pbbo->handle = nvbo->handle;
|
|
pbbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM | NOUVEAU_GEM_DOMAIN_GART;
|
|
pbbo->read_domains = 0;
|
|
pbbo->write_domains = 0;
|
|
pbbo->presumed_domain = nvbo->domain;
|
|
pbbo->presumed_offset = nvbo->offset;
|
|
pbbo->presumed_ok = 1;
|
|
return pbbo;
|
|
}
|