*/
#include <linux/dma-mapping.h>
-#include <linux/swiotlb.h>
#include "nouveau_drv.h"
#include "nouveau_chan.h"
static int nouveau_ttm_tt_bind(struct ttm_bo_device *bdev, struct ttm_tt *ttm,
struct ttm_resource *reg);
+static void nouveau_ttm_tt_unbind(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
/*
* NV10-NV40 tiling helpers
struct drm_device *dev = drm->dev;
struct nouveau_bo *nvbo = nouveau_bo(bo);
- WARN_ON(nvbo->pin_refcnt > 0);
+ WARN_ON(nvbo->bo.pin_count > 0);
nouveau_bo_del_io_reserve_lru(bo);
nv10_bo_put_tile_region(dev, nvbo->tile, NULL);
}
static void
-set_placement_list(struct nouveau_drm *drm, struct ttm_place *pl, unsigned *n,
- uint32_t domain, uint32_t flags)
+set_placement_list(struct ttm_place *pl, unsigned *n, uint32_t domain)
{
*n = 0;
if (domain & NOUVEAU_GEM_DOMAIN_VRAM) {
- struct nvif_mmu *mmu = &drm->client.mmu;
-
pl[*n].mem_type = TTM_PL_VRAM;
- pl[*n].flags = flags & ~TTM_PL_FLAG_CACHED;
-
- /* Some BARs do not support being ioremapped WC */
- if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA &&
- mmu->type[drm->ttm.type_vram].type & NVIF_MEM_UNCACHED)
- pl[*n].flags &= ~TTM_PL_FLAG_WC;
-
+ pl[*n].flags = 0;
(*n)++;
}
if (domain & NOUVEAU_GEM_DOMAIN_GART) {
pl[*n].mem_type = TTM_PL_TT;
- pl[*n].flags = flags;
-
- if (drm->agp.bridge)
- pl[*n].flags &= ~TTM_PL_FLAG_CACHED;
-
+ pl[*n].flags = 0;
(*n)++;
}
if (domain & NOUVEAU_GEM_DOMAIN_CPU) {
pl[*n].mem_type = TTM_PL_SYSTEM;
- pl[(*n)++].flags = flags;
+ pl[(*n)++].flags = 0;
}
}
nouveau_bo_placement_set(struct nouveau_bo *nvbo, uint32_t domain,
uint32_t busy)
{
- struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
struct ttm_placement *pl = &nvbo->placement;
- uint32_t flags = (nvbo->force_coherent ? TTM_PL_FLAG_UNCACHED :
- TTM_PL_MASK_CACHING) |
- (nvbo->pin_refcnt ? TTM_PL_FLAG_NO_EVICT : 0);
pl->placement = nvbo->placements;
- set_placement_list(drm, nvbo->placements, &pl->num_placement,
- domain, flags);
+ set_placement_list(nvbo->placements, &pl->num_placement, domain);
pl->busy_placement = nvbo->busy_placements;
- set_placement_list(drm, nvbo->busy_placements, &pl->num_busy_placement,
- domain | busy, flags);
+ set_placement_list(nvbo->busy_placements, &pl->num_busy_placement,
+ domain | busy);
set_placement_range(nvbo, domain);
}
}
}
- if (nvbo->pin_refcnt) {
+ if (nvbo->bo.pin_count) {
bool error = evict;
switch (bo->mem.mem_type) {
bo->mem.mem_type, domain);
ret = -EBUSY;
}
- nvbo->pin_refcnt++;
+ ttm_bo_pin(&nvbo->bo);
goto out;
}
goto out;
}
- nvbo->pin_refcnt++;
nouveau_bo_placement_set(nvbo, domain, 0);
-
- /* drop pin_refcnt temporarily, so we don't trip the assertion
- * in nouveau_bo_move() that makes sure we're not trying to
- * move a pinned buffer
- */
- nvbo->pin_refcnt--;
ret = nouveau_bo_validate(nvbo, false, false);
if (ret)
goto out;
- nvbo->pin_refcnt++;
+
+ ttm_bo_pin(&nvbo->bo);
switch (bo->mem.mem_type) {
case TTM_PL_VRAM:
{
struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
struct ttm_buffer_object *bo = &nvbo->bo;
- int ret, ref;
+ int ret;
ret = ttm_bo_reserve(bo, false, false, NULL);
if (ret)
return ret;
- ref = --nvbo->pin_refcnt;
- WARN_ON_ONCE(ref < 0);
- if (ref)
- goto out;
-
- switch (bo->mem.mem_type) {
- case TTM_PL_VRAM:
- nouveau_bo_placement_set(nvbo, NOUVEAU_GEM_DOMAIN_VRAM, 0);
- break;
- case TTM_PL_TT:
- nouveau_bo_placement_set(nvbo, NOUVEAU_GEM_DOMAIN_GART, 0);
- break;
- default:
- break;
- }
-
- ret = nouveau_bo_validate(nvbo, false, false);
- if (ret == 0) {
+ ttm_bo_unpin(&nvbo->bo);
+ if (!nvbo->bo.pin_count) {
switch (bo->mem.mem_type) {
case TTM_PL_VRAM:
drm->gem.vram_available += bo->mem.size;
}
}
-out:
ttm_bo_unreserve(bo);
- return ret;
+ return 0;
}
int
nouveau_bo_sync_for_device(struct nouveau_bo *nvbo)
{
struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
- struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm;
+ struct ttm_tt *ttm_dma = (struct ttm_tt *)nvbo->bo.ttm;
int i;
if (!ttm_dma)
if (nvbo->force_coherent)
return;
- for (i = 0; i < ttm_dma->ttm.num_pages; i++)
+ for (i = 0; i < ttm_dma->num_pages; i++)
dma_sync_single_for_device(drm->dev->dev,
ttm_dma->dma_address[i],
PAGE_SIZE, DMA_TO_DEVICE);
nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo)
{
struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
- struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm;
+ struct ttm_tt *ttm_dma = (struct ttm_tt *)nvbo->bo.ttm;
int i;
if (!ttm_dma)
if (nvbo->force_coherent)
return;
- for (i = 0; i < ttm_dma->ttm.num_pages; i++)
+ for (i = 0; i < ttm_dma->num_pages; i++)
dma_sync_single_for_cpu(drm->dev->dev, ttm_dma->dma_address[i],
PAGE_SIZE, DMA_FROM_DEVICE);
}
}
static int
-nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict, bool intr,
- bool no_wait_gpu, struct ttm_resource *new_reg)
+nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict,
+ struct ttm_operation_ctx *ctx,
+ struct ttm_resource *new_reg)
{
struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
struct nouveau_channel *chan = drm->ttm.chan;
}
mutex_lock_nested(&cli->mutex, SINGLE_DEPTH_NESTING);
- ret = nouveau_fence_sync(nouveau_bo(bo), chan, true, intr);
+ ret = nouveau_fence_sync(nouveau_bo(bo), chan, true, ctx->interruptible);
if (ret == 0) {
ret = drm->ttm.move(chan, bo, &bo->mem, new_reg);
if (ret == 0) {
NV_INFO(drm, "MM: using %s for buffer copies\n", name);
}
-static int
-nouveau_bo_move_flipd(struct ttm_buffer_object *bo, bool evict, bool intr,
- bool no_wait_gpu, struct ttm_resource *new_reg)
-{
- struct ttm_operation_ctx ctx = { intr, no_wait_gpu };
- struct ttm_place placement_memtype = {
- .fpfn = 0,
- .lpfn = 0,
- .mem_type = TTM_PL_TT,
- .flags = TTM_PL_MASK_CACHING
- };
- struct ttm_placement placement;
- struct ttm_resource tmp_reg;
- int ret;
-
- placement.num_placement = placement.num_busy_placement = 1;
- placement.placement = placement.busy_placement = &placement_memtype;
-
- tmp_reg = *new_reg;
- tmp_reg.mm_node = NULL;
- ret = ttm_bo_mem_space(bo, &placement, &tmp_reg, &ctx);
- if (ret)
- return ret;
-
- ret = ttm_tt_populate(bo->bdev, bo->ttm, &ctx);
- if (ret)
- goto out;
-
- ret = nouveau_ttm_tt_bind(bo->bdev, bo->ttm, &tmp_reg);
- if (ret)
- goto out;
-
- ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_gpu, &tmp_reg);
- if (ret)
- goto out;
-
- ret = ttm_bo_move_ttm(bo, &ctx, new_reg);
-out:
- ttm_resource_free(bo, &tmp_reg);
- return ret;
-}
-
-static int
-nouveau_bo_move_flips(struct ttm_buffer_object *bo, bool evict, bool intr,
- bool no_wait_gpu, struct ttm_resource *new_reg)
-{
- struct ttm_operation_ctx ctx = { intr, no_wait_gpu };
- struct ttm_place placement_memtype = {
- .fpfn = 0,
- .lpfn = 0,
- .mem_type = TTM_PL_TT,
- .flags = TTM_PL_MASK_CACHING
- };
- struct ttm_placement placement;
- struct ttm_resource tmp_reg;
- int ret;
-
- placement.num_placement = placement.num_busy_placement = 1;
- placement.placement = placement.busy_placement = &placement_memtype;
-
- tmp_reg = *new_reg;
- tmp_reg.mm_node = NULL;
- ret = ttm_bo_mem_space(bo, &placement, &tmp_reg, &ctx);
- if (ret)
- return ret;
-
- ret = ttm_bo_move_ttm(bo, &ctx, &tmp_reg);
- if (ret)
- goto out;
-
- ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_gpu, new_reg);
- if (ret)
- goto out;
-
-out:
- ttm_resource_free(bo, &tmp_reg);
- return ret;
-}
-
static void
nouveau_bo_move_ntfy(struct ttm_buffer_object *bo, bool evict,
struct ttm_resource *new_reg)
static int
nouveau_bo_move(struct ttm_buffer_object *bo, bool evict,
struct ttm_operation_ctx *ctx,
- struct ttm_resource *new_reg)
+ struct ttm_resource *new_reg,
+ struct ttm_place *hop)
{
struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
struct nouveau_bo *nvbo = nouveau_bo(bo);
struct nouveau_drm_tile *new_tile = NULL;
int ret = 0;
- ret = ttm_bo_wait(bo, ctx->interruptible, ctx->no_wait_gpu);
+ if ((old_reg->mem_type == TTM_PL_SYSTEM &&
+ new_reg->mem_type == TTM_PL_VRAM) ||
+ (old_reg->mem_type == TTM_PL_VRAM &&
+ new_reg->mem_type == TTM_PL_SYSTEM)) {
+ hop->fpfn = 0;
+ hop->lpfn = 0;
+ hop->mem_type = TTM_PL_TT;
+ hop->flags = 0;
+ return -EMULTIHOP;
+ }
+
+ if (new_reg->mem_type == TTM_PL_TT) {
+ ret = nouveau_ttm_tt_bind(bo->bdev, bo->ttm, new_reg);
+ if (ret)
+ return ret;
+ }
+
+ nouveau_bo_move_ntfy(bo, evict, new_reg);
+ ret = ttm_bo_wait_ctx(bo, ctx);
if (ret)
- return ret;
+ goto out_ntfy;
- if (nvbo->pin_refcnt)
+ if (nvbo->bo.pin_count)
NV_WARN(drm, "Moving pinned object %p!\n", nvbo);
if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
ret = nouveau_bo_vm_bind(bo, new_reg, &new_tile);
if (ret)
- return ret;
+ goto out_ntfy;
}
/* Fake bo copy. */
goto out;
}
+ if (old_reg->mem_type == TTM_PL_SYSTEM &&
+ new_reg->mem_type == TTM_PL_TT) {
+ ttm_bo_move_null(bo, new_reg);
+ goto out;
+ }
+
+ if (old_reg->mem_type == TTM_PL_TT &&
+ new_reg->mem_type == TTM_PL_SYSTEM) {
+ nouveau_ttm_tt_unbind(bo->bdev, bo->ttm);
+ ttm_resource_free(bo, &bo->mem);
+ ttm_bo_assign_mem(bo, new_reg);
+ goto out;
+ }
+
/* Hardware assisted copy. */
if (drm->ttm.move) {
- if (new_reg->mem_type == TTM_PL_SYSTEM)
- ret = nouveau_bo_move_flipd(bo, evict,
- ctx->interruptible,
- ctx->no_wait_gpu, new_reg);
- else if (old_reg->mem_type == TTM_PL_SYSTEM)
- ret = nouveau_bo_move_flips(bo, evict,
- ctx->interruptible,
- ctx->no_wait_gpu, new_reg);
- else
- ret = nouveau_bo_move_m2mf(bo, evict,
- ctx->interruptible,
- ctx->no_wait_gpu, new_reg);
+ ret = nouveau_bo_move_m2mf(bo, evict, ctx,
+ new_reg);
if (!ret)
goto out;
}
/* Fallback to software copy. */
- ret = ttm_bo_wait(bo, ctx->interruptible, ctx->no_wait_gpu);
- if (ret == 0)
- ret = ttm_bo_move_memcpy(bo, ctx, new_reg);
+ ret = ttm_bo_move_memcpy(bo, ctx, new_reg);
out:
if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
else
nouveau_bo_vm_cleanup(bo, new_tile, &nvbo->tile);
}
-
+out_ntfy:
+ if (ret) {
+ swap(*new_reg, bo->mem);
+ nouveau_bo_move_ntfy(bo, false, new_reg);
+ swap(*new_reg, bo->mem);
+ }
return ret;
}
struct nouveau_drm *drm = nouveau_bdev(bdev);
struct nvkm_device *device = nvxx_device(&drm->client.device);
struct nouveau_mem *mem = nouveau_mem(reg);
+ struct nvif_mmu *mmu = &drm->client.mmu;
int ret;
mutex_lock(&drm->ttm.io_reserve_mutex);
reg->bus.offset = (reg->start << PAGE_SHIFT) +
drm->agp.base;
reg->bus.is_iomem = !drm->agp.cma;
+ reg->bus.caching = ttm_write_combined;
}
#endif
if (drm->client.mem->oclass < NVIF_CLASS_MEM_NV50 ||
reg->bus.offset = (reg->start << PAGE_SHIFT) +
device->func->resource_addr(device, 1);
reg->bus.is_iomem = true;
+
+ /* Some BARs do not support being ioremapped WC */
+ if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA &&
+ mmu->type[drm->ttm.type_vram].type & NVIF_MEM_UNCACHED)
+ reg->bus.caching = ttm_uncached;
+ else
+ reg->bus.caching = ttm_write_combined;
+
if (drm->client.mem->oclass >= NVIF_CLASS_MEM_NV50) {
union {
struct nv50_mem_map_v0 nv50;
mutex_unlock(&drm->ttm.io_reserve_mutex);
}
-static int
-nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
+vm_fault_t nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
{
struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
struct nouveau_bo *nvbo = nouveau_bo(bo);
!nvbo->kind)
return 0;
- if (bo->mem.mem_type == TTM_PL_SYSTEM) {
- nouveau_bo_placement_set(nvbo, NOUVEAU_GEM_DOMAIN_GART,
- 0);
+ if (bo->mem.mem_type != TTM_PL_SYSTEM)
+ return 0;
+
+ nouveau_bo_placement_set(nvbo, NOUVEAU_GEM_DOMAIN_GART, 0);
+
+ } else {
+ /* make sure bo is in mappable vram */
+ if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA ||
+ bo->mem.start + bo->mem.num_pages < mappable)
+ return 0;
- ret = nouveau_bo_validate(nvbo, false, false);
- if (ret)
- return ret;
+ for (i = 0; i < nvbo->placement.num_placement; ++i) {
+ nvbo->placements[i].fpfn = 0;
+ nvbo->placements[i].lpfn = mappable;
}
- return 0;
- }
- /* make sure bo is in mappable vram */
- if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA ||
- bo->mem.start + bo->mem.num_pages < mappable)
- return 0;
+ for (i = 0; i < nvbo->placement.num_busy_placement; ++i) {
+ nvbo->busy_placements[i].fpfn = 0;
+ nvbo->busy_placements[i].lpfn = mappable;
+ }
- for (i = 0; i < nvbo->placement.num_placement; ++i) {
- nvbo->placements[i].fpfn = 0;
- nvbo->placements[i].lpfn = mappable;
+ nouveau_bo_placement_set(nvbo, NOUVEAU_GEM_DOMAIN_VRAM, 0);
}
- for (i = 0; i < nvbo->placement.num_busy_placement; ++i) {
- nvbo->busy_placements[i].fpfn = 0;
- nvbo->busy_placements[i].lpfn = mappable;
- }
+ ret = nouveau_bo_validate(nvbo, false, false);
+ if (unlikely(ret == -EBUSY || ret == -ERESTARTSYS))
+ return VM_FAULT_NOPAGE;
+ else if (unlikely(ret))
+ return VM_FAULT_SIGBUS;
- nouveau_bo_placement_set(nvbo, NOUVEAU_GEM_DOMAIN_VRAM, 0);
- return nouveau_bo_validate(nvbo, false, false);
+ ttm_bo_move_to_lru_tail_unlocked(bo);
+ return 0;
}
static int
nouveau_ttm_tt_populate(struct ttm_bo_device *bdev,
struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
{
- struct ttm_dma_tt *ttm_dma = (void *)ttm;
+ struct ttm_tt *ttm_dma = (void *)ttm;
struct nouveau_drm *drm;
struct device *dev;
bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
/* make userspace faulting work */
drm_prime_sg_to_page_addr_arrays(ttm->sg, ttm->pages,
ttm_dma->dma_address, ttm->num_pages);
- ttm_tt_set_populated(ttm);
return 0;
}
drm = nouveau_bdev(bdev);
dev = drm->dev->dev;
-#if IS_ENABLED(CONFIG_AGP)
- if (drm->agp.bridge) {
- return ttm_pool_populate(ttm, ctx);
- }
-#endif
-
-#if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
- if (swiotlb_nr_tbl()) {
- return ttm_dma_populate((void *)ttm, dev, ctx);
- }
-#endif
- return ttm_populate_and_map_pages(dev, ttm_dma, ctx);
+ return ttm_pool_alloc(&drm->ttm.bdev.pool, ttm, ctx);
}
static void
nouveau_ttm_tt_unpopulate(struct ttm_bo_device *bdev,
struct ttm_tt *ttm)
{
- struct ttm_dma_tt *ttm_dma = (void *)ttm;
struct nouveau_drm *drm;
struct device *dev;
bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
drm = nouveau_bdev(bdev);
dev = drm->dev->dev;
-#if IS_ENABLED(CONFIG_AGP)
- if (drm->agp.bridge) {
- ttm_pool_unpopulate(ttm);
- return;
- }
-#endif
-
-#if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
- if (swiotlb_nr_tbl()) {
- ttm_dma_unpopulate((void *)ttm, dev);
- return;
- }
-#endif
-
- ttm_unmap_and_unpopulate_pages(dev, ttm_dma);
+ return ttm_pool_free(&drm->ttm.bdev.pool, ttm);
}
static void
dma_resv_add_shared_fence(resv, &fence->base);
}
+static void
+nouveau_bo_delete_mem_notify(struct ttm_buffer_object *bo)
+{
+ nouveau_bo_move_ntfy(bo, false, NULL);
+}
+
struct ttm_bo_driver nouveau_bo_driver = {
.ttm_tt_create = &nouveau_ttm_tt_create,
.ttm_tt_populate = &nouveau_ttm_tt_populate,
.ttm_tt_unpopulate = &nouveau_ttm_tt_unpopulate,
- .ttm_tt_bind = &nouveau_ttm_tt_bind,
- .ttm_tt_unbind = &nouveau_ttm_tt_unbind,
.ttm_tt_destroy = &nouveau_ttm_tt_destroy,
.eviction_valuable = ttm_bo_eviction_valuable,
.evict_flags = nouveau_bo_evict_flags,
- .move_notify = nouveau_bo_move_ntfy,
+ .delete_mem_notify = nouveau_bo_delete_mem_notify,
.move = nouveau_bo_move,
.verify_access = nouveau_bo_verify_access,
- .fault_reserve_notify = &nouveau_ttm_fault_reserve_notify,
.io_mem_reserve = &nouveau_ttm_io_mem_reserve,
.io_mem_free = &nouveau_ttm_io_mem_free,
};
projects / linux-2.6-microblaze.git / blobdiff