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/*
* Copyright 2007 Nouveau Project
*
* 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 AUTHORS 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 <stdint.h>
#include <stdlib.h>
#include <errno.h>
#include <assert.h>
#include "nouveau_drmif.h"
#include "nouveau_dma.h"
#include "nouveau_local.h"
static void
nouveau_mem_free(struct nouveau_device *dev, struct drm_nouveau_mem_alloc *ma,
void **map)
{
struct nouveau_device_priv *nvdev = nouveau_device(dev);
struct drm_nouveau_mem_free mf;
if (map && *map) {
drmUnmap(*map, ma->size);
*map = NULL;
}
if (ma->size) {
mf.offset = ma->offset;
mf.flags = ma->flags;
drmCommandWrite(nvdev->fd, DRM_NOUVEAU_MEM_FREE,
&mf, sizeof(mf));
ma->size = 0;
}
}
static int
nouveau_mem_alloc(struct nouveau_device *dev, unsigned size, unsigned align,
uint32_t flags, struct drm_nouveau_mem_alloc *ma, void **map)
{
struct nouveau_device_priv *nvdev = nouveau_device(dev);
int ret;
ma->alignment = align;
ma->size = size;
ma->flags = flags;
if (map)
ma->flags |= NOUVEAU_MEM_MAPPED;
ret = drmCommandWriteRead(nvdev->fd, DRM_NOUVEAU_MEM_ALLOC, ma,
sizeof(struct drm_nouveau_mem_alloc));
if (ret)
return ret;
if (map) {
ret = drmMap(nvdev->fd, ma->map_handle, ma->size, map);
if (ret) {
*map = NULL;
nouveau_mem_free(dev, ma, map);
return ret;
}
}
return 0;
}
static void
nouveau_bo_tmp_del(void *priv)
{
struct nouveau_resource *r = priv;
nouveau_fence_ref(NULL, (struct nouveau_fence **)&r->priv);
nouveau_resource_free(&r);
}
static struct nouveau_resource *
nouveau_bo_tmp(struct nouveau_channel *chan, unsigned size,
struct nouveau_fence *fence)
{
struct nouveau_device_priv *nvdev = nouveau_device(chan->device);
struct nouveau_resource *r = NULL;
struct nouveau_fence *ref = NULL;
if (fence)
nouveau_fence_ref(fence, &ref);
else
nouveau_fence_new(chan, &ref);
assert(ref);
while (nouveau_resource_alloc(nvdev->sa_heap, size, ref, &r)) {
nouveau_fence_flush(chan);
}
nouveau_fence_signal_cb(ref, nouveau_bo_tmp_del, r);
return r;
}
int
nouveau_bo_init(struct nouveau_device *dev)
{
struct nouveau_device_priv *nvdev = nouveau_device(dev);
int ret;
ret = nouveau_mem_alloc(dev, 128*1024, 0, NOUVEAU_MEM_AGP |
NOUVEAU_MEM_PCI, &nvdev->sa, &nvdev->sa_map);
if (ret)
return ret;
ret = nouveau_resource_init(&nvdev->sa_heap, 0, nvdev->sa.size);
if (ret) {
nouveau_mem_free(dev, &nvdev->sa, &nvdev->sa_map);
return ret;
}
return 0;
}
void
nouveau_bo_takedown(struct nouveau_device *dev)
{
struct nouveau_device_priv *nvdev = nouveau_device(dev);
nouveau_mem_free(dev, &nvdev->sa, &nvdev->sa_map);
}
int
nouveau_bo_new(struct nouveau_device *dev, uint32_t flags, int align,
int size, struct nouveau_bo **bo)
{
struct nouveau_bo_priv *nvbo;
int ret;
if (!dev || !bo || *bo)
return -EINVAL;
nvbo = calloc(1, sizeof(struct nouveau_bo_priv));
if (!nvbo)
return -ENOMEM;
nvbo->base.device = dev;
nvbo->base.size = size;
nvbo->base.handle = bo_to_ptr(nvbo);
nvbo->drm.alignment = align;
nvbo->refcount = 1;
ret = nouveau_bo_set_status(&nvbo->base, flags);
if (ret) {
free(nvbo);
return ret;
}
*bo = &nvbo->base;
return 0;
}
int
nouveau_bo_user(struct nouveau_device *dev, void *ptr, int size,
struct nouveau_bo **bo)
{
struct nouveau_bo_priv *nvbo;
if (!dev || !bo || *bo)
return -EINVAL;
nvbo = calloc(1, sizeof(*nvbo));
if (!nvbo)
return -ENOMEM;
nvbo->base.device = dev;
nvbo->sysmem = ptr;
nvbo->user = 1;
nvbo->base.size = size;
nvbo->base.offset = nvbo->drm.offset;
nvbo->base.handle = bo_to_ptr(nvbo);
nvbo->refcount = 1;
*bo = &nvbo->base;
return 0;
}
int
nouveau_bo_ref(struct nouveau_device *dev, uint64_t handle,
struct nouveau_bo **bo)
{
struct nouveau_bo_priv *nvbo = ptr_to_bo(handle);
if (!dev || !bo || *bo)
return -EINVAL;
nvbo->refcount++;
*bo = &nvbo->base;
return 0;
}
static void
nouveau_bo_del_cb(void *priv)
{
struct nouveau_bo_priv *nvbo = priv;
nouveau_fence_ref(NULL, &nvbo->fence);
nouveau_mem_free(nvbo->base.device, &nvbo->drm, &nvbo->map);
if (nvbo->sysmem && !nvbo->user)
free(nvbo->sysmem);
free(nvbo);
}
void
nouveau_bo_del(struct nouveau_bo **bo)
{
struct nouveau_bo_priv *nvbo;
if (!bo || !*bo)
return;
nvbo = nouveau_bo(*bo);
*bo = NULL;
if (--nvbo->refcount)
return;
if (nvbo->fence)
nouveau_fence_signal_cb(nvbo->fence, nouveau_bo_del_cb, nvbo);
else
nouveau_bo_del_cb(nvbo);
}
int
nouveau_bo_map(struct nouveau_bo *bo, uint32_t flags)
{
struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
if (!nvbo)
return -EINVAL;
if (flags & NOUVEAU_BO_WR)
nouveau_fence_wait(&nvbo->fence);
else
nouveau_fence_wait(&nvbo->wr_fence);
if (nvbo->sysmem)
bo->map = nvbo->sysmem;
else
bo->map = nvbo->map;
return 0;
}
void
nouveau_bo_unmap(struct nouveau_bo *bo)
{
bo->map = NULL;
}
static int
nouveau_bo_upload(struct nouveau_bo_priv *nvbo)
{
if (nvbo->fence)
nouveau_fence_wait(&nvbo->fence);
memcpy(nvbo->map, nvbo->sysmem, nvbo->drm.size);
return 0;
}
int
nouveau_bo_set_status(struct nouveau_bo *bo, uint32_t flags)
{
struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
struct drm_nouveau_mem_alloc new;
void *new_map = NULL, *new_sysmem = NULL;
unsigned new_flags = 0, ret;
assert(!bo->map);
/* Check current memtype vs requested, if they match do nothing */
if ((nvbo->drm.flags & NOUVEAU_MEM_FB) && (flags & NOUVEAU_BO_VRAM))
return 0;
if ((nvbo->drm.flags & NOUVEAU_MEM_AGP) && (flags & NOUVEAU_BO_GART))
return 0;
if (nvbo->drm.size == 0 && nvbo->sysmem && (flags & NOUVEAU_BO_LOCAL))
return 0;
memset(&new, 0x00, sizeof(new));
/* Allocate new memory */
if (flags & NOUVEAU_BO_VRAM)
new_flags |= NOUVEAU_MEM_FB;
else
if (flags & NOUVEAU_BO_GART)
new_flags |= (NOUVEAU_MEM_AGP | NOUVEAU_MEM_PCI);
if (new_flags) {
ret = nouveau_mem_alloc(bo->device, bo->size,
nvbo->drm.alignment, new_flags,
&new, &new_map);
if (ret)
return ret;
} else
if (!nvbo->user) {
new_sysmem = malloc(bo->size);
}
/* Copy old -> new */
/*XXX: use M2MF */
if (nvbo->sysmem || nvbo->map) {
nouveau_bo_map(bo, NOUVEAU_BO_RD);
memcpy(new_map, bo->map, bo->size);
nouveau_bo_unmap(bo);
}
/* Free old memory */
if (nvbo->fence)
nouveau_fence_wait(&nvbo->fence);
nouveau_mem_free(bo->device, &nvbo->drm, &nvbo->map);
if (nvbo->sysmem && !nvbo->user)
free(nvbo->sysmem);
nvbo->drm = new;
nvbo->map = new_map;
if (!nvbo->user)
nvbo->sysmem = new_sysmem;
bo->flags = flags;
bo->offset = nvbo->drm.offset;
return 0;
}
static int
nouveau_bo_validate_user(struct nouveau_channel *chan, struct nouveau_bo *bo,
struct nouveau_fence *fence, uint32_t flags)
{
struct nouveau_channel_priv *nvchan = nouveau_channel(chan);
struct nouveau_device_priv *nvdev = nouveau_device(chan->device);
struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
struct nouveau_resource *r;
if (nvchan->user_charge + bo->size > nvdev->sa.size)
return 1;
if (!(flags & NOUVEAU_BO_GART))
return 1;
r = nouveau_bo_tmp(chan, bo->size, fence);
if (!r)
return 1;
nvchan->user_charge += bo->size;
memcpy(nvdev->sa_map + r->start, nvbo->sysmem, bo->size);
nvbo->offset = nvdev->sa.offset + r->start;
nvbo->flags = NOUVEAU_BO_GART;
return 0;
}
static int
nouveau_bo_validate_bo(struct nouveau_channel *chan, struct nouveau_bo *bo,
struct nouveau_fence *fence, uint32_t flags)
{
struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
int ret;
ret = nouveau_bo_set_status(bo, flags);
if (ret)
return ret;
if (nvbo->user)
nouveau_bo_upload(nvbo);
nvbo->offset = nvbo->drm.offset;
if (nvbo->drm.flags & (NOUVEAU_MEM_AGP | NOUVEAU_MEM_PCI))
nvbo->flags = NOUVEAU_BO_GART;
else
nvbo->flags = NOUVEAU_BO_VRAM;
return 0;
}
int
nouveau_bo_validate(struct nouveau_channel *chan, struct nouveau_bo *bo,
uint32_t flags)
{
struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
struct nouveau_fence *fence = nouveau_pushbuf(chan->pushbuf)->fence;
int ret;
assert(bo->map == NULL);
if (nvbo->user) {
ret = nouveau_bo_validate_user(chan, bo, fence, flags);
if (ret) {
ret = nouveau_bo_validate_bo(chan, bo, fence, flags);
if (ret)
return ret;
}
} else {
ret = nouveau_bo_validate_bo(chan, bo, fence, flags);
if (ret)
return ret;
}
if (flags & NOUVEAU_BO_WR)
nouveau_fence_ref(fence, &nvbo->wr_fence);
nouveau_fence_ref(fence, &nvbo->fence);
return 0;
}
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