*/
#define ESTIMATE_PT_SIZE(mem_size) ((mem_size) >> 14)
+static size_t amdgpu_amdkfd_acc_size(uint64_t size)
+{
+ size >>= PAGE_SHIFT;
+ size *= sizeof(dma_addr_t) + sizeof(void *);
+
+ return __roundup_pow_of_two(sizeof(struct amdgpu_bo)) +
+ __roundup_pow_of_two(sizeof(struct ttm_tt)) +
+ PAGE_ALIGN(size);
+}
+
static int amdgpu_amdkfd_reserve_mem_limit(struct amdgpu_device *adev,
uint64_t size, u32 domain, bool sg)
{
size_t acc_size, system_mem_needed, ttm_mem_needed, vram_needed;
int ret = 0;
- acc_size = ttm_bo_dma_acc_size(&adev->mman.bdev, size,
- sizeof(struct amdgpu_bo));
+ acc_size = amdgpu_amdkfd_acc_size(size);
vram_needed = 0;
if (domain == AMDGPU_GEM_DOMAIN_GTT) {
{
size_t acc_size;
- acc_size = ttm_bo_dma_acc_size(&adev->mman.bdev, size,
- sizeof(struct amdgpu_bo));
+ acc_size = amdgpu_amdkfd_acc_size(size);
spin_lock(&kfd_mem_limit.mem_limit_lock);
if (domain == AMDGPU_GEM_DOMAIN_GTT) {
};
struct amdgpu_bo *bo;
unsigned long page_align, size = bp->size;
- size_t acc_size;
int r;
/* Note that GDS/GWS/OA allocates 1 page per byte/resource. */
*bo_ptr = NULL;
- acc_size = ttm_bo_dma_acc_size(&adev->mman.bdev, size,
- sizeof(struct amdgpu_bo));
-
bo = kzalloc(sizeof(struct amdgpu_bo), GFP_KERNEL);
if (bo == NULL)
return -ENOMEM;
bo->tbo.priority = 1;
r = ttm_bo_init_reserved(&adev->mman.bdev, &bo->tbo, size, bp->type,
- &bo->placement, page_align, &ctx, acc_size,
- NULL, bp->resv, &amdgpu_bo_destroy);
+ &bo->placement, page_align, &ctx, NULL,
+ bp->resv, &amdgpu_bo_destroy);
if (unlikely(r != 0))
return r;
struct drm_vram_mm *vmm = dev->vram_mm;
struct ttm_device *bdev;
int ret;
- size_t acc_size;
if (WARN_ONCE(!vmm, "VRAM MM not initialized"))
return ERR_PTR(-EINVAL);
}
bdev = &vmm->bdev;
- acc_size = ttm_bo_dma_acc_size(bdev, size, sizeof(*gbo));
gbo->bo.bdev = bdev;
drm_gem_vram_placement(gbo, DRM_GEM_VRAM_PL_FLAG_SYSTEM);
* to release gbo->bo.base and kfree gbo.
*/
ret = ttm_bo_init(bdev, &gbo->bo, size, ttm_bo_type_device,
- &gbo->placement, pg_align, false, acc_size,
- NULL, NULL, ttm_buffer_object_destroy);
+ &gbo->placement, pg_align, false, NULL, NULL,
+ ttm_buffer_object_destroy);
if (ret)
return ERR_PTR(ret);
struct sg_table *sg, struct dma_resv *robj)
{
int type = sg ? ttm_bo_type_sg : ttm_bo_type_device;
- size_t acc_size;
int ret;
- acc_size = ttm_bo_dma_acc_size(nvbo->bo.bdev, size, sizeof(*nvbo));
-
nvbo->bo.mem.num_pages = size >> PAGE_SHIFT;
nouveau_bo_placement_set(nvbo, domain, 0);
INIT_LIST_HEAD(&nvbo->io_reserve_lru);
ret = ttm_bo_init(nvbo->bo.bdev, &nvbo->bo, size, type,
- &nvbo->placement, align >> PAGE_SHIFT, false,
- acc_size, sg, robj, nouveau_bo_del_ttm);
+ &nvbo->placement, align >> PAGE_SHIFT, false, sg,
+ robj, nouveau_bo_del_ttm);
if (ret) {
/* ttm will call nouveau_bo_del_ttm if it fails.. */
return ret;
#include <drm/ttm/ttm_bo_api.h>
#include <drm/ttm/ttm_bo_driver.h>
#include <drm/ttm/ttm_placement.h>
-#include <drm/ttm/ttm_memory.h>
#include <drm/drm_audio_component.h>
qxl_ttm_placement_from_domain(bo, domain);
r = ttm_bo_init_reserved(&qdev->mman.bdev, &bo->tbo, size, type,
- &bo->placement, 0, &ctx, size,
- NULL, NULL, &qxl_ttm_bo_destroy);
+ &bo->placement, 0, &ctx, NULL, NULL,
+ &qxl_ttm_bo_destroy);
if (unlikely(r != 0)) {
if (r != -ERESTARTSYS)
dev_err(qdev->ddev.dev,
struct radeon_bo *bo;
enum ttm_bo_type type;
unsigned long page_align = roundup(byte_align, PAGE_SIZE) >> PAGE_SHIFT;
- size_t acc_size;
int r;
size = ALIGN(size, PAGE_SIZE);
}
*bo_ptr = NULL;
- acc_size = ttm_bo_dma_acc_size(&rdev->mman.bdev, size,
- sizeof(struct radeon_bo));
-
bo = kzalloc(sizeof(struct radeon_bo), GFP_KERNEL);
if (bo == NULL)
return -ENOMEM;
/* Kernel allocation are uninterruptible */
down_read(&rdev->pm.mclk_lock);
r = ttm_bo_init(&rdev->mman.bdev, &bo->tbo, size, type,
- &bo->placement, page_align, !kernel, acc_size,
- sg, resv, &radeon_ttm_bo_destroy);
+ &bo->placement, page_align, !kernel, sg, resv,
+ &radeon_ttm_bo_destroy);
up_read(&rdev->pm.mclk_lock);
if (unlikely(r != 0)) {
return r;
#
# Makefile for the drm device driver. This driver provides support for the
-ttm-y := ttm_memory.o ttm_tt.o ttm_bo.o \
- ttm_bo_util.o ttm_bo_vm.o ttm_module.o \
- ttm_execbuf_util.o ttm_range_manager.o \
- ttm_resource.o ttm_pool.o ttm_device.o
+ttm-y := ttm_tt.o ttm_bo.o ttm_bo_util.o ttm_bo_vm.o ttm_module.o \
+ ttm_execbuf_util.o ttm_range_manager.o ttm_resource.o ttm_pool.o \
+ ttm_device.o
ttm-$(CONFIG_AGP) += ttm_agp_backend.o
obj-$(CONFIG_DRM_TTM) += ttm.o
struct ttm_buffer_object *bo =
container_of(kref, struct ttm_buffer_object, kref);
struct ttm_device *bdev = bo->bdev;
- size_t acc_size = bo->acc_size;
int ret;
if (!bo->deleted) {
if (!ttm_bo_uses_embedded_gem_object(bo))
dma_resv_fini(&bo->base._resv);
bo->destroy(bo);
- ttm_mem_global_free(&ttm_mem_glob, acc_size);
}
void ttm_bo_put(struct ttm_buffer_object *bo)
struct ttm_placement *placement,
uint32_t page_alignment,
struct ttm_operation_ctx *ctx,
- size_t acc_size,
struct sg_table *sg,
struct dma_resv *resv,
void (*destroy) (struct ttm_buffer_object *))
{
- struct ttm_mem_global *mem_glob = &ttm_mem_glob;
bool locked;
int ret = 0;
- ret = ttm_mem_global_alloc(mem_glob, acc_size, ctx);
- if (ret) {
- pr_err("Out of kernel memory\n");
- if (destroy)
- (*destroy)(bo);
- else
- kfree(bo);
- return -ENOMEM;
- }
-
bo->destroy = destroy ? destroy : ttm_bo_default_destroy;
kref_init(&bo->kref);
bo->mem.bus.addr = NULL;
bo->moving = NULL;
bo->mem.placement = 0;
- bo->acc_size = acc_size;
bo->pin_count = 0;
bo->sg = sg;
if (resv) {
struct ttm_placement *placement,
uint32_t page_alignment,
bool interruptible,
- size_t acc_size,
struct sg_table *sg,
struct dma_resv *resv,
void (*destroy) (struct ttm_buffer_object *))
int ret;
ret = ttm_bo_init_reserved(bdev, bo, size, type, placement,
- page_alignment, &ctx, acc_size,
- sg, resv, destroy);
+ page_alignment, &ctx, sg, resv, destroy);
if (ret)
return ret;
}
EXPORT_SYMBOL(ttm_bo_init);
-size_t ttm_bo_dma_acc_size(struct ttm_device *bdev,
- unsigned long bo_size,
- unsigned struct_size)
-{
- unsigned npages = (PAGE_ALIGN(bo_size)) >> PAGE_SHIFT;
- size_t size = 0;
-
- size += ttm_round_pot(struct_size);
- size += ttm_round_pot(npages * (2*sizeof(void *) + sizeof(dma_addr_t)));
- size += ttm_round_pot(sizeof(struct ttm_tt));
- return size;
-}
-EXPORT_SYMBOL(ttm_bo_dma_acc_size);
-
/*
* buffer object vm functions.
*/
kref_init(&fbo->base.kref);
fbo->base.destroy = &ttm_transfered_destroy;
- fbo->base.acc_size = 0;
fbo->base.pin_count = 0;
if (bo->type != ttm_bo_type_sg)
fbo->base.base.resv = &fbo->base.base._resv;
#define pr_fmt(fmt) "[TTM DEVICE] " fmt
+#include <linux/mm.h>
+
#include <drm/ttm/ttm_device.h>
-#include <drm/ttm/ttm_memory.h>
+#include <drm/ttm/ttm_tt.h>
#include <drm/ttm/ttm_placement.h>
+#include <drm/ttm/ttm_bo_api.h>
#include "ttm_module.h"
if (--ttm_glob_use_count > 0)
goto out;
- ttm_mem_global_release(&ttm_mem_glob);
+ ttm_pool_mgr_fini();
+ ttm_tt_mgr_fini();
+
__free_page(glob->dummy_read_page);
memset(glob, 0, sizeof(*glob));
out:
static int ttm_global_init(void)
{
struct ttm_global *glob = &ttm_glob;
+ unsigned long num_pages;
+ struct sysinfo si;
int ret = 0;
unsigned i;
if (++ttm_glob_use_count > 1)
goto out;
- ret = ttm_mem_global_init(&ttm_mem_glob);
- if (ret)
- goto out;
+ si_meminfo(&si);
+
+ /* Limit the number of pages in the pool to about 50% of the total
+ * system memory.
+ */
+ num_pages = ((u64)si.totalram * si.mem_unit) >> PAGE_SHIFT;
+ ttm_pool_mgr_init(num_pages * 50 / 100);
+ ttm_tt_mgr_init();
spin_lock_init(&glob->lru_lock);
glob->dummy_read_page = alloc_page(__GFP_ZERO | GFP_DMA32);
caching = pages + (1 << order);
}
- r = ttm_mem_global_alloc_page(&ttm_mem_glob, p,
- (1 << order) * PAGE_SIZE,
- ctx);
- if (r)
- goto error_free_page;
-
if (dma_addr) {
r = ttm_pool_map(pool, order, p, &dma_addr);
if (r)
- goto error_global_free;
+ goto error_free_page;
}
num_pages -= 1 << order;
return 0;
-error_global_free:
- ttm_mem_global_free_page(&ttm_mem_glob, p, (1 << order) * PAGE_SIZE);
-
error_free_page:
ttm_pool_free_page(pool, tt->caching, order, p);
order = ttm_pool_page_order(pool, p);
num_pages = 1ULL << order;
- ttm_mem_global_free_page(&ttm_mem_glob, p,
- num_pages * PAGE_SIZE);
if (tt->dma_address)
ttm_pool_unmap(pool, tt->dma_address[i], num_pages);
vmwgfx_cotable.o vmwgfx_so.o vmwgfx_binding.o vmwgfx_msg.o \
vmwgfx_simple_resource.o vmwgfx_va.o vmwgfx_blit.o \
vmwgfx_validation.o vmwgfx_page_dirty.o vmwgfx_streamoutput.o \
- ttm_object.o ttm_lock.o
+ ttm_object.o ttm_lock.o ttm_memory.o
vmwgfx-$(CONFIG_TRANSPARENT_HUGEPAGE) += vmwgfx_thp.o
obj-$(CONFIG_DRM_VMWGFX) := vmwgfx.o
#define pr_fmt(fmt) "[TTM] " fmt
-#include <drm/ttm/ttm_memory.h>
#include <linux/spinlock.h>
#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/swap.h>
-#include <drm/ttm/ttm_pool.h>
-#include <drm/ttm/ttm_tt.h>
-#include "ttm_module.h"
+#include <drm/drm_device.h>
+#include <drm/drm_file.h>
+
+#include "ttm_memory.h"
#define TTM_MEMORY_ALLOC_RETRIES 4
}
#endif
-int ttm_mem_global_init(struct ttm_mem_global *glob)
+int ttm_mem_global_init(struct ttm_mem_global *glob, struct device *dev)
{
struct sysinfo si;
int ret;
spin_lock_init(&glob->lock);
glob->swap_queue = create_singlethread_workqueue("ttm_swap");
INIT_WORK(&glob->work, ttm_shrink_work);
- ret = kobject_init_and_add(
- &glob->kobj, &ttm_mem_glob_kobj_type, ttm_get_kobj(), "memory_accounting");
+
+ ret = kobject_init_and_add(&glob->kobj, &ttm_mem_glob_kobj_type,
+ &dev->kobj, "memory_accounting");
if (unlikely(ret != 0)) {
kobject_put(&glob->kobj);
return ret;
pr_info("Zone %7s: Available graphics memory: %llu KiB\n",
zone->name, (unsigned long long)zone->max_mem >> 10);
}
- ttm_pool_mgr_init(glob->zone_kernel->max_mem/(2*PAGE_SIZE));
- ttm_tt_mgr_init();
return 0;
out_no_zone:
ttm_mem_global_release(glob);
struct ttm_mem_zone *zone;
unsigned int i;
- /* let the page allocator first stop the shrink work. */
- ttm_pool_mgr_fini();
- ttm_tt_mgr_fini();
-
flush_workqueue(glob->swap_queue);
destroy_workqueue(glob->swap_queue);
glob->swap_queue = NULL;
#include <linux/errno.h>
#include <linux/kobject.h>
#include <linux/mm.h>
-#include "ttm_bo_api.h"
+
+#include <drm/ttm/ttm_bo_api.h>
/**
* struct ttm_mem_global - Global memory accounting structure.
#endif
} ttm_mem_glob;
-int ttm_mem_global_init(struct ttm_mem_global *glob);
+int ttm_mem_global_init(struct ttm_mem_global *glob, struct device *dev);
void ttm_mem_global_release(struct ttm_mem_global *glob);
int ttm_mem_global_alloc(struct ttm_mem_global *glob, uint64_t memory,
struct ttm_operation_ctx *ctx);
#include <linux/rcupdate.h>
#include <drm/drm_hashtab.h>
-#include <drm/ttm/ttm_memory.h>
+
+#include "ttm_memory.h"
/**
* enum ttm_ref_type
acc_size = ttm_round_pot(sizeof(*bo));
acc_size += ttm_round_pot(npages * sizeof(void *));
acc_size += ttm_round_pot(sizeof(struct ttm_tt));
+
+ ret = ttm_mem_global_alloc(&ttm_mem_glob, acc_size, &ctx);
+ if (unlikely(ret))
+ goto error_free;
+
ret = ttm_bo_init_reserved(&dev_priv->bdev, bo, size,
ttm_bo_type_device, placement, 0,
- &ctx, acc_size, NULL, NULL, NULL);
+ &ctx, NULL, NULL, NULL);
if (unlikely(ret))
- goto error_free;
+ goto error_account;
ttm_bo_pin(bo);
ttm_bo_unreserve(bo);
return 0;
+error_account:
+ ttm_mem_global_free(&ttm_mem_glob, acc_size);
+
error_free:
kfree(bo);
return ret;
vmw_bo->base.priority = 3;
vmw_bo->res_tree = RB_ROOT;
+ ret = ttm_mem_global_alloc(&ttm_mem_glob, acc_size, &ctx);
+ if (unlikely(ret))
+ return ret;
+
ret = ttm_bo_init_reserved(bdev, &vmw_bo->base, size,
ttm_bo_type_device, placement,
- 0, &ctx, acc_size, NULL, NULL, bo_free);
- if (unlikely(ret))
+ 0, &ctx, NULL, NULL, bo_free);
+ if (unlikely(ret)) {
+ ttm_mem_global_free(&ttm_mem_glob, acc_size);
return ret;
+ }
if (pin)
ttm_bo_pin(&vmw_bo->base);
{
struct drm_device *dev = pci_get_drvdata(pdev);
+ ttm_mem_global_release(&ttm_mem_glob);
drm_dev_unregister(dev);
vmw_driver_unload(dev);
}
pci_set_drvdata(pdev, &vmw->drm);
+ ret = ttm_mem_global_init(&ttm_mem_glob, &pdev->dev);
+ if (ret)
+ return ret;
+
ret = vmw_driver_load(vmw, ent->device);
if (ret)
return ret;
static int vmw_ttm_populate(struct ttm_device *bdev,
struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
{
+ unsigned int i;
+ int ret;
+
/* TODO: maybe completely drop this ? */
if (ttm_tt_is_populated(ttm))
return 0;
- return ttm_pool_alloc(&bdev->pool, ttm, ctx);
+ ret = ttm_pool_alloc(&bdev->pool, ttm, ctx);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < ttm->num_pages; ++i) {
+ ret = ttm_mem_global_alloc_page(&ttm_mem_glob, ttm->pages[i],
+ PAGE_SIZE, ctx);
+ if (ret)
+ goto error;
+ }
+ return 0;
+
+error:
+ while (i--)
+ ttm_mem_global_free_page(&ttm_mem_glob, ttm->pages[i],
+ PAGE_SIZE);
+ ttm_pool_free(&bdev->pool, ttm);
+ return ret;
}
static void vmw_ttm_unpopulate(struct ttm_device *bdev,
{
struct vmw_ttm_tt *vmw_tt = container_of(ttm, struct vmw_ttm_tt,
dma_ttm);
+ unsigned int i;
if (vmw_tt->mob) {
vmw_mob_destroy(vmw_tt->mob);
}
vmw_ttm_unmap_dma(vmw_tt);
+
+ for (i = 0; i < ttm->num_pages; ++i)
+ ttm_mem_global_free_page(&ttm_mem_glob, ttm->pages[i],
+ PAGE_SIZE);
+
ttm_pool_free(&bdev->pool, ttm);
}
* @type: The bo type.
* @destroy: Destruction function. If NULL, kfree is used.
* @num_pages: Actual number of pages.
- * @acc_size: Accounted size for this object.
* @kref: Reference count of this buffer object. When this refcount reaches
* zero, the object is destroyed or put on the delayed delete list.
* @mem: structure describing current placement.
struct ttm_device *bdev;
enum ttm_bo_type type;
void (*destroy) (struct ttm_buffer_object *);
- size_t acc_size;
/**
* Members not needing protection.
bool ttm_bo_eviction_valuable(struct ttm_buffer_object *bo,
const struct ttm_place *place);
-size_t ttm_bo_dma_acc_size(struct ttm_device *bdev,
- unsigned long bo_size,
- unsigned struct_size);
-
/**
* ttm_bo_init_reserved
*
* @flags: Initial placement flags.
* @page_alignment: Data alignment in pages.
* @ctx: TTM operation context for memory allocation.
- * @acc_size: Accounted size for this object.
* @resv: Pointer to a dma_resv, or NULL to let ttm allocate one.
* @destroy: Destroy function. Use NULL for kfree().
*
struct ttm_placement *placement,
uint32_t page_alignment,
struct ttm_operation_ctx *ctx,
- size_t acc_size, struct sg_table *sg,
- struct dma_resv *resv,
+ struct sg_table *sg, struct dma_resv *resv,
void (*destroy) (struct ttm_buffer_object *));
/**
* holds a pointer to a persistent shmem object. Typically, this would
* point to the shmem object backing a GEM object if TTM is used to back a
* GEM user interface.
- * @acc_size: Accounted size for this object.
* @resv: Pointer to a dma_resv, or NULL to let ttm allocate one.
* @destroy: Destroy function. Use NULL for kfree().
*
int ttm_bo_init(struct ttm_device *bdev, struct ttm_buffer_object *bo,
size_t size, enum ttm_bo_type type,
struct ttm_placement *placement,
- uint32_t page_alignment, bool interrubtible, size_t acc_size,
+ uint32_t page_alignment, bool interrubtible,
struct sg_table *sg, struct dma_resv *resv,
void (*destroy) (struct ttm_buffer_object *));
#include <drm/ttm/ttm_device.h>
#include "ttm_bo_api.h"
-#include "ttm_memory.h"
#include "ttm_placement.h"
#include "ttm_tt.h"
#include "ttm_pool.h"
#include <linux/types.h>
#include <drm/ttm/ttm_caching.h>
+struct ttm_bo_device;
struct ttm_tt;
struct ttm_resource;
struct ttm_buffer_object;
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