#include "amdgpu_gem.h"
#include "amdgpu_dma_buf.h"
#include "amdgpu_xgmi.h"
+#include "amdgpu_vm.h"
#include <drm/amdgpu_drm.h>
#include <drm/ttm/ttm_tt.h>
#include <linux/dma-buf.h>
if (pci_p2pdma_distance(adev->pdev, attach->dev, false) < 0)
attach->peer2peer = false;
+ amdgpu_vm_bo_update_shared(bo);
+
return 0;
}
struct amdgpu_fpriv *fpriv = file->driver_priv;
struct amdgpu_vm *vm = &fpriv->vm;
- struct amdgpu_mem_stats stats[__AMDGPU_PL_LAST + 1] = { };
+ struct amdgpu_mem_stats stats[__AMDGPU_PL_NUM];
ktime_t usage[AMDGPU_HW_IP_NUM];
const char *pl_name[] = {
[TTM_PL_VRAM] = "vram",
[AMDGPU_PL_DOORBELL] = "doorbell",
};
unsigned int hw_ip, i;
- int ret;
-
- ret = amdgpu_bo_reserve(vm->root.bo, false);
- if (ret)
- return;
-
- amdgpu_vm_get_memory(vm, stats, ARRAY_SIZE(stats));
- amdgpu_bo_unreserve(vm->root.bo);
+ amdgpu_vm_get_memory(vm, stats);
amdgpu_ctx_mgr_usage(&fpriv->ctx_mgr, usage);
/*
drm_print_memory_stats(p,
&stats[i].drm,
- DRM_GEM_OBJECT_ACTIVE |
DRM_GEM_OBJECT_RESIDENT |
DRM_GEM_OBJECT_PURGEABLE,
pl_name[i]);
drm_printf(p, "amd-evicted-vram:\t%llu KiB\n",
stats[TTM_PL_VRAM].evicted/1024UL);
drm_printf(p, "amd-requested-vram:\t%llu KiB\n",
- stats[TTM_PL_VRAM].requested/1024UL);
+ (stats[TTM_PL_VRAM].drm.shared +
+ stats[TTM_PL_VRAM].drm.private) / 1024UL);
drm_printf(p, "amd-requested-gtt:\t%llu KiB\n",
- stats[TTM_PL_TT].requested/1024UL);
+ (stats[TTM_PL_TT].drm.shared +
+ stats[TTM_PL_TT].drm.private) / 1024UL);
for (hw_ip = 0; hw_ip < AMDGPU_HW_IP_NUM; ++hw_ip) {
if (!usage[hw_ip])
#include "amdgpu_dma_buf.h"
#include "amdgpu_hmm.h"
#include "amdgpu_xgmi.h"
+#include "amdgpu_vm.h"
static vm_fault_t amdgpu_gem_fault(struct vm_fault *vmf)
{
if (r)
return r;
+ amdgpu_vm_bo_update_shared(abo);
bo_va = amdgpu_vm_bo_find(vm, abo);
if (!bo_va)
bo_va = amdgpu_vm_bo_add(adev, vm, abo);
goto out_unlock;
amdgpu_vm_bo_del(adev, bo_va);
+ amdgpu_vm_bo_update_shared(bo);
if (!amdgpu_vm_ready(vm))
goto out_unlock;
return;
abo = ttm_to_amdgpu_bo(bo);
- amdgpu_vm_bo_invalidate(abo, evict);
+ amdgpu_vm_bo_move(abo, new_mem, evict);
amdgpu_bo_kunmap(abo);
old_mem ? old_mem->mem_type : -1);
}
-void amdgpu_bo_get_memory(struct amdgpu_bo *bo,
- struct amdgpu_mem_stats *stats,
- unsigned int sz)
-{
- const unsigned int domain_to_pl[] = {
- [ilog2(AMDGPU_GEM_DOMAIN_CPU)] = TTM_PL_SYSTEM,
- [ilog2(AMDGPU_GEM_DOMAIN_GTT)] = TTM_PL_TT,
- [ilog2(AMDGPU_GEM_DOMAIN_VRAM)] = TTM_PL_VRAM,
- [ilog2(AMDGPU_GEM_DOMAIN_GDS)] = AMDGPU_PL_GDS,
- [ilog2(AMDGPU_GEM_DOMAIN_GWS)] = AMDGPU_PL_GWS,
- [ilog2(AMDGPU_GEM_DOMAIN_OA)] = AMDGPU_PL_OA,
- [ilog2(AMDGPU_GEM_DOMAIN_DOORBELL)] = AMDGPU_PL_DOORBELL,
- };
- struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
- struct ttm_resource *res = bo->tbo.resource;
- struct drm_gem_object *obj = &bo->tbo.base;
- uint64_t size = amdgpu_bo_size(bo);
- unsigned int type;
-
- if (!res) {
- /*
- * If no backing store use one of the preferred domain for basic
- * stats. We take the MSB since that should give a reasonable
- * view.
- */
- BUILD_BUG_ON(TTM_PL_VRAM < TTM_PL_TT ||
- TTM_PL_VRAM < TTM_PL_SYSTEM);
- type = fls(bo->preferred_domains & AMDGPU_GEM_DOMAIN_MASK);
- if (!type)
- return;
- type--;
- if (drm_WARN_ON_ONCE(&adev->ddev,
- type >= ARRAY_SIZE(domain_to_pl)))
- return;
- type = domain_to_pl[type];
- } else {
- type = res->mem_type;
- }
-
- if (drm_WARN_ON_ONCE(&adev->ddev, type >= sz))
- return;
-
- /* DRM stats common fields: */
-
- if (drm_gem_object_is_shared_for_memory_stats(obj))
- stats[type].drm.shared += size;
- else
- stats[type].drm.private += size;
-
- if (res) {
- stats[type].drm.resident += size;
-
- if (!dma_resv_test_signaled(obj->resv, DMA_RESV_USAGE_BOOKKEEP))
- stats[type].drm.active += size;
- else if (bo->flags & AMDGPU_GEM_CREATE_DISCARDABLE)
- stats[type].drm.purgeable += size;
- }
-
- /* amdgpu specific stats: */
-
- if (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) {
- stats[TTM_PL_VRAM].requested += size;
- if (type != TTM_PL_VRAM)
- stats[TTM_PL_VRAM].evicted += size;
- } else if (bo->preferred_domains & AMDGPU_GEM_DOMAIN_GTT) {
- stats[TTM_PL_TT].requested += size;
- }
-}
-
/**
* amdgpu_bo_release_notify - notification about a BO being released
* @bo: pointer to a buffer object
return amdgpu_gmc_sign_extend(offset);
}
+/**
+ * amdgpu_bo_mem_stats_placement - bo placement for memory accounting
+ * @bo: the buffer object we should look at
+ *
+ * BO can have multiple preferred placements, to avoid double counting we want
+ * to file it under a single placement for memory stats.
+ * Luckily, if we take the highest set bit in preferred_domains the result is
+ * quite sensible.
+ *
+ * Returns:
+ * Which of the placements should the BO be accounted under.
+ */
+uint32_t amdgpu_bo_mem_stats_placement(struct amdgpu_bo *bo)
+{
+ uint32_t domain = bo->preferred_domains & AMDGPU_GEM_DOMAIN_MASK;
+
+ if (!domain)
+ return TTM_PL_SYSTEM;
+
+ switch (rounddown_pow_of_two(domain)) {
+ case AMDGPU_GEM_DOMAIN_CPU:
+ return TTM_PL_SYSTEM;
+ case AMDGPU_GEM_DOMAIN_GTT:
+ return TTM_PL_TT;
+ case AMDGPU_GEM_DOMAIN_VRAM:
+ return TTM_PL_VRAM;
+ case AMDGPU_GEM_DOMAIN_GDS:
+ return AMDGPU_PL_GDS;
+ case AMDGPU_GEM_DOMAIN_GWS:
+ return AMDGPU_PL_GWS;
+ case AMDGPU_GEM_DOMAIN_OA:
+ return AMDGPU_PL_OA;
+ case AMDGPU_GEM_DOMAIN_DOORBELL:
+ return AMDGPU_PL_DOORBELL;
+ default:
+ return TTM_PL_SYSTEM;
+ }
+}
+
/**
* amdgpu_bo_get_preferred_domain - get preferred domain
* @adev: amdgpu device object
int amdgpu_bo_sync_wait(struct amdgpu_bo *bo, void *owner, bool intr);
u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo);
u64 amdgpu_bo_gpu_offset_no_check(struct amdgpu_bo *bo);
-void amdgpu_bo_get_memory(struct amdgpu_bo *bo,
- struct amdgpu_mem_stats *stats,
- unsigned int size);
+uint32_t amdgpu_bo_mem_stats_placement(struct amdgpu_bo *bo);
uint32_t amdgpu_bo_get_preferred_domain(struct amdgpu_device *adev,
uint32_t domain);
#include <linux/dma-direction.h>
#include <drm/gpu_scheduler.h>
+#include <drm/ttm/ttm_placement.h>
#include "amdgpu_vram_mgr.h"
-#include "amdgpu.h"
#define AMDGPU_PL_GDS (TTM_PL_PRIV + 0)
#define AMDGPU_PL_GWS (TTM_PL_PRIV + 1)
#define AMDGPU_PL_OA (TTM_PL_PRIV + 2)
#define AMDGPU_PL_PREEMPT (TTM_PL_PRIV + 3)
#define AMDGPU_PL_DOORBELL (TTM_PL_PRIV + 4)
-#define __AMDGPU_PL_LAST (TTM_PL_PRIV + 4)
+#define __AMDGPU_PL_NUM (TTM_PL_PRIV + 5)
#define AMDGPU_GTT_MAX_TRANSFER_SIZE 512
#define AMDGPU_GTT_NUM_TRANSFER_WINDOWS 2
#include <drm/ttm/ttm_tt.h>
#include <drm/drm_exec.h>
#include "amdgpu.h"
+#include "amdgpu_vm.h"
#include "amdgpu_trace.h"
#include "amdgpu_amdkfd.h"
#include "amdgpu_gmc.h"
spin_unlock(&vm->status_lock);
}
+/**
+ * amdgpu_vm_update_shared - helper to update shared memory stat
+ * @base: base structure for tracking BO usage in a VM
+ *
+ * Takes the vm status_lock and updates the shared memory stat. If the basic
+ * stat changed (e.g. buffer was moved) amdgpu_vm_update_stats need to be called
+ * as well.
+ */
+static void amdgpu_vm_update_shared(struct amdgpu_vm_bo_base *base)
+{
+ struct amdgpu_vm *vm = base->vm;
+ struct amdgpu_bo *bo = base->bo;
+ uint64_t size = amdgpu_bo_size(bo);
+ uint32_t bo_memtype = amdgpu_bo_mem_stats_placement(bo);
+ bool shared;
+
+ spin_lock(&vm->status_lock);
+ shared = drm_gem_object_is_shared_for_memory_stats(&bo->tbo.base);
+ if (base->shared != shared) {
+ base->shared = shared;
+ if (shared) {
+ vm->stats[bo_memtype].drm.shared += size;
+ vm->stats[bo_memtype].drm.private -= size;
+ } else {
+ vm->stats[bo_memtype].drm.shared -= size;
+ vm->stats[bo_memtype].drm.private += size;
+ }
+ }
+ spin_unlock(&vm->status_lock);
+}
+
+/**
+ * amdgpu_vm_bo_update_shared - callback when bo gets shared/unshared
+ * @bo: amdgpu buffer object
+ *
+ * Update the per VM stats for all the vm if needed from private to shared or
+ * vice versa.
+ */
+void amdgpu_vm_bo_update_shared(struct amdgpu_bo *bo)
+{
+ struct amdgpu_vm_bo_base *base;
+
+ for (base = bo->vm_bo; base; base = base->next)
+ amdgpu_vm_update_shared(base);
+}
+
+/**
+ * amdgpu_vm_update_stats_locked - helper to update normal memory stat
+ * @base: base structure for tracking BO usage in a VM
+ * @res: the ttm_resource to use for the purpose of accounting, may or may not
+ * be bo->tbo.resource
+ * @sign: if we should add (+1) or subtract (-1) from the stat
+ *
+ * Caller need to have the vm status_lock held. Useful for when multiple update
+ * need to happen at the same time.
+ */
+static void amdgpu_vm_update_stats_locked(struct amdgpu_vm_bo_base *base,
+ struct ttm_resource *res, int sign)
+{
+ struct amdgpu_vm *vm = base->vm;
+ struct amdgpu_bo *bo = base->bo;
+ int64_t size = sign * amdgpu_bo_size(bo);
+ uint32_t bo_memtype = amdgpu_bo_mem_stats_placement(bo);
+
+ /* For drm-total- and drm-shared-, BO are accounted by their preferred
+ * placement, see also amdgpu_bo_mem_stats_placement.
+ */
+ if (base->shared)
+ vm->stats[bo_memtype].drm.shared += size;
+ else
+ vm->stats[bo_memtype].drm.private += size;
+
+ if (res && res->mem_type < __AMDGPU_PL_NUM) {
+ uint32_t res_memtype = res->mem_type;
+
+ vm->stats[res_memtype].drm.resident += size;
+ /* BO only count as purgeable if it is resident,
+ * since otherwise there's nothing to purge.
+ */
+ if (bo->flags & AMDGPU_GEM_CREATE_DISCARDABLE)
+ vm->stats[res_memtype].drm.purgeable += size;
+ if (!(bo->preferred_domains & amdgpu_mem_type_to_domain(res_memtype)))
+ vm->stats[bo_memtype].evicted += size;
+ }
+}
+
+/**
+ * amdgpu_vm_update_stats - helper to update normal memory stat
+ * @base: base structure for tracking BO usage in a VM
+ * @res: the ttm_resource to use for the purpose of accounting, may or may not
+ * be bo->tbo.resource
+ * @sign: if we should add (+1) or subtract (-1) from the stat
+ *
+ * Updates the basic memory stat when bo is added/deleted/moved.
+ */
+void amdgpu_vm_update_stats(struct amdgpu_vm_bo_base *base,
+ struct ttm_resource *res, int sign)
+{
+ struct amdgpu_vm *vm = base->vm;
+
+ spin_lock(&vm->status_lock);
+ amdgpu_vm_update_stats_locked(base, res, sign);
+ spin_unlock(&vm->status_lock);
+}
+
/**
* amdgpu_vm_bo_base_init - Adds bo to the list of bos associated with the vm
*
base->next = bo->vm_bo;
bo->vm_bo = base;
+ spin_lock(&vm->status_lock);
+ base->shared = drm_gem_object_is_shared_for_memory_stats(&bo->tbo.base);
+ amdgpu_vm_update_stats_locked(base, bo->tbo.resource, +1);
+ spin_unlock(&vm->status_lock);
+
if (!amdgpu_vm_is_bo_always_valid(vm, bo))
return;
return r;
}
-static void amdgpu_vm_bo_get_memory(struct amdgpu_bo_va *bo_va,
- struct amdgpu_mem_stats *stats,
- unsigned int size)
-{
- struct amdgpu_vm *vm = bo_va->base.vm;
- struct amdgpu_bo *bo = bo_va->base.bo;
-
- if (!bo)
- return;
-
- /*
- * For now ignore BOs which are currently locked and potentially
- * changing their location.
- */
- if (!amdgpu_vm_is_bo_always_valid(vm, bo) &&
- !dma_resv_trylock(bo->tbo.base.resv))
- return;
-
- amdgpu_bo_get_memory(bo, stats, size);
- if (!amdgpu_vm_is_bo_always_valid(vm, bo))
- dma_resv_unlock(bo->tbo.base.resv);
-}
-
void amdgpu_vm_get_memory(struct amdgpu_vm *vm,
- struct amdgpu_mem_stats *stats,
- unsigned int size)
+ struct amdgpu_mem_stats stats[__AMDGPU_PL_NUM])
{
- struct amdgpu_bo_va *bo_va, *tmp;
-
spin_lock(&vm->status_lock);
- list_for_each_entry_safe(bo_va, tmp, &vm->idle, base.vm_status)
- amdgpu_vm_bo_get_memory(bo_va, stats, size);
-
- list_for_each_entry_safe(bo_va, tmp, &vm->evicted, base.vm_status)
- amdgpu_vm_bo_get_memory(bo_va, stats, size);
-
- list_for_each_entry_safe(bo_va, tmp, &vm->relocated, base.vm_status)
- amdgpu_vm_bo_get_memory(bo_va, stats, size);
-
- list_for_each_entry_safe(bo_va, tmp, &vm->moved, base.vm_status)
- amdgpu_vm_bo_get_memory(bo_va, stats, size);
-
- list_for_each_entry_safe(bo_va, tmp, &vm->invalidated, base.vm_status)
- amdgpu_vm_bo_get_memory(bo_va, stats, size);
-
- list_for_each_entry_safe(bo_va, tmp, &vm->done, base.vm_status)
- amdgpu_vm_bo_get_memory(bo_va, stats, size);
+ memcpy(stats, vm->stats, sizeof(*stats) * __AMDGPU_PL_NUM);
spin_unlock(&vm->status_lock);
}
if (*base != &bo_va->base)
continue;
+ amdgpu_vm_update_stats(*base, bo->tbo.resource, -1);
*base = bo_va->base.next;
break;
}
}
}
+/**
+ * amdgpu_vm_bo_move - handle BO move
+ *
+ * @bo: amdgpu buffer object
+ * @new_mem: the new placement of the BO move
+ * @evicted: is the BO evicted
+ *
+ * Update the memory stats for the new placement and mark @bo as invalid.
+ */
+void amdgpu_vm_bo_move(struct amdgpu_bo *bo, struct ttm_resource *new_mem,
+ bool evicted)
+{
+ struct amdgpu_vm_bo_base *bo_base;
+
+ for (bo_base = bo->vm_bo; bo_base; bo_base = bo_base->next) {
+ struct amdgpu_vm *vm = bo_base->vm;
+
+ spin_lock(&vm->status_lock);
+ amdgpu_vm_update_stats_locked(bo_base, bo->tbo.resource, -1);
+ amdgpu_vm_update_stats_locked(bo_base, new_mem, +1);
+ spin_unlock(&vm->status_lock);
+ }
+
+ amdgpu_vm_bo_invalidate(bo, evicted);
+}
+
/**
* amdgpu_vm_get_block_size - calculate VM page table size as power of two
*
vm->is_compute_context = false;
}
+static int amdgpu_vm_stats_is_zero(struct amdgpu_vm *vm)
+{
+ for (int i = 0; i < __AMDGPU_PL_NUM; ++i) {
+ if (!(drm_memory_stats_is_zero(&vm->stats[i].drm) &&
+ vm->stats[i].evicted == 0))
+ return false;
+ }
+ return true;
+}
+
/**
* amdgpu_vm_fini - tear down a vm instance
*
root = amdgpu_bo_ref(vm->root.bo);
amdgpu_bo_reserve(root, true);
- amdgpu_vm_put_task_info(vm->task_info);
amdgpu_vm_set_pasid(adev, vm, 0);
dma_fence_wait(vm->last_unlocked, false);
dma_fence_put(vm->last_unlocked);
}
ttm_lru_bulk_move_fini(&adev->mman.bdev, &vm->lru_bulk_move);
+
+ if (!amdgpu_vm_stats_is_zero(vm)) {
+ struct amdgpu_task_info *ti = vm->task_info;
+
+ dev_warn(adev->dev,
+ "VM memory stats for proc %s(%d) task %s(%d) is non-zero when fini\n",
+ ti->process_name, ti->pid, ti->task_name, ti->tgid);
+ }
+
+ amdgpu_vm_put_task_info(vm->task_info);
}
/**
#include "amdgpu_sync.h"
#include "amdgpu_ring.h"
#include "amdgpu_ids.h"
+#include "amdgpu_ttm.h"
struct drm_exec;
/* protected by bo being reserved */
struct amdgpu_vm_bo_base *next;
- /* protected by spinlock */
+ /* protected by vm status_lock */
struct list_head vm_status;
+ /* if the bo is counted as shared in mem stats
+ * protected by vm status_lock */
+ bool shared;
+
/* protected by the BO being reserved */
bool moved;
};
struct amdgpu_mem_stats {
struct drm_memory_stats drm;
- /* buffers that requested this placement */
- uint64_t requested;
- /* buffers that requested this placement
- * but are currently evicted */
+ /* buffers that requested this placement but are currently evicted */
uint64_t evicted;
};
/* Lock to protect vm_bo add/del/move on all lists of vm */
spinlock_t status_lock;
+ /* Memory statistics for this vm, protected by status_lock */
+ struct amdgpu_mem_stats stats[__AMDGPU_PL_NUM];
+
/* Per-VM and PT BOs who needs a validation */
struct list_head evicted;
bool clear);
bool amdgpu_vm_evictable(struct amdgpu_bo *bo);
void amdgpu_vm_bo_invalidate(struct amdgpu_bo *bo, bool evicted);
+void amdgpu_vm_update_stats(struct amdgpu_vm_bo_base *base,
+ struct ttm_resource *new_res, int sign);
+void amdgpu_vm_bo_update_shared(struct amdgpu_bo *bo);
+void amdgpu_vm_bo_move(struct amdgpu_bo *bo, struct ttm_resource *new_mem,
+ bool evicted);
uint64_t amdgpu_vm_map_gart(const dma_addr_t *pages_addr, uint64_t addr);
struct amdgpu_bo_va *amdgpu_vm_bo_find(struct amdgpu_vm *vm,
struct amdgpu_bo *bo);
void amdgpu_vm_move_to_lru_tail(struct amdgpu_device *adev,
struct amdgpu_vm *vm);
void amdgpu_vm_get_memory(struct amdgpu_vm *vm,
- struct amdgpu_mem_stats *stats,
- unsigned int size);
+ struct amdgpu_mem_stats stats[__AMDGPU_PL_NUM]);
int amdgpu_vm_pt_clear(struct amdgpu_device *adev, struct amdgpu_vm *vm,
struct amdgpu_bo_vm *vmbo, bool immediate);
if (!entry->bo)
return;
+ amdgpu_vm_update_stats(entry, entry->bo->tbo.resource, -1);
entry->bo->vm_bo = NULL;
ttm_bo_set_bulk_move(&entry->bo->tbo, NULL);
projects / thirdparty / kernel / linux.git / commitdiff
