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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c739
1 files changed, 385 insertions, 354 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 80120fa4092c..1dda9321bd5a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -25,7 +25,7 @@
* Alex Deucher
* Jerome Glisse
*/
-#include <linux/fence-array.h>
+#include <linux/dma-fence-array.h>
#include <drm/drmP.h>
#include <drm/amdgpu_drm.h>
#include "amdgpu.h"
@@ -51,19 +51,22 @@
* SI supports 16.
*/
-/* Special value that no flush is necessary */
-#define AMDGPU_VM_NO_FLUSH (~0ll)
-
/* Local structure. Encapsulate some VM table update parameters to reduce
* the number of function parameters
*/
-struct amdgpu_vm_update_params {
+struct amdgpu_pte_update_params {
+ /* amdgpu device we do this update for */
+ struct amdgpu_device *adev;
/* address where to copy page table entries from */
uint64_t src;
- /* DMA addresses to use for mapping */
- dma_addr_t *pages_addr;
/* indirect buffer to fill with commands */
struct amdgpu_ib *ib;
+ /* Function which actually does the update */
+ void (*func)(struct amdgpu_pte_update_params *params, uint64_t pe,
+ uint64_t addr, unsigned count, uint32_t incr,
+ uint32_t flags);
+ /* indicate update pt or its shadow */
+ bool shadow;
};
/**
@@ -113,38 +116,43 @@ void amdgpu_vm_get_pd_bo(struct amdgpu_vm *vm,
}
/**
- * amdgpu_vm_get_bos - add the vm BOs to a duplicates list
+ * amdgpu_vm_validate_pt_bos - validate the page table BOs
*
* @adev: amdgpu device pointer
* @vm: vm providing the BOs
- * @duplicates: head of duplicates list
+ * @validate: callback to do the validation
+ * @param: parameter for the validation callback
*
- * Add the page directory to the BO duplicates list
- * for command submission.
+ * Validate the page table BOs on command submission if neccessary.
*/
-void amdgpu_vm_get_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
- struct list_head *duplicates)
+int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
+ int (*validate)(void *p, struct amdgpu_bo *bo),
+ void *param)
{
uint64_t num_evictions;
unsigned i;
+ int r;
/* We only need to validate the page tables
* if they aren't already valid.
*/
num_evictions = atomic64_read(&adev->num_evictions);
if (num_evictions == vm->last_eviction_counter)
- return;
+ return 0;
/* add the vm page table to the list */
for (i = 0; i <= vm->max_pde_used; ++i) {
- struct amdgpu_bo_list_entry *entry = &vm->page_tables[i].entry;
+ struct amdgpu_bo *bo = vm->page_tables[i].bo;
- if (!entry->robj)
+ if (!bo)
continue;
- list_add(&entry->tv.head, duplicates);
+ r = validate(param, bo);
+ if (r)
+ return r;
}
+ return 0;
}
/**
@@ -163,12 +171,12 @@ void amdgpu_vm_move_pt_bos_in_lru(struct amdgpu_device *adev,
spin_lock(&glob->lru_lock);
for (i = 0; i <= vm->max_pde_used; ++i) {
- struct amdgpu_bo_list_entry *entry = &vm->page_tables[i].entry;
+ struct amdgpu_bo *bo = vm->page_tables[i].bo;
- if (!entry->robj)
+ if (!bo)
continue;
- ttm_bo_move_to_lru_tail(&entry->robj->tbo);
+ ttm_bo_move_to_lru_tail(&bo->tbo);
}
spin_unlock(&glob->lru_lock);
}
@@ -191,14 +199,14 @@ static bool amdgpu_vm_is_gpu_reset(struct amdgpu_device *adev,
* Allocate an id for the vm, adding fences to the sync obj as necessary.
*/
int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
- struct amdgpu_sync *sync, struct fence *fence,
+ struct amdgpu_sync *sync, struct dma_fence *fence,
struct amdgpu_job *job)
{
struct amdgpu_device *adev = ring->adev;
uint64_t fence_context = adev->fence_context + ring->idx;
- struct fence *updates = sync->last_vm_update;
+ struct dma_fence *updates = sync->last_vm_update;
struct amdgpu_vm_id *id, *idle;
- struct fence **fences;
+ struct dma_fence **fences;
unsigned i;
int r = 0;
@@ -222,17 +230,17 @@ int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
if (&idle->list == &adev->vm_manager.ids_lru) {
u64 fence_context = adev->vm_manager.fence_context + ring->idx;
unsigned seqno = ++adev->vm_manager.seqno[ring->idx];
- struct fence_array *array;
+ struct dma_fence_array *array;
unsigned j;
for (j = 0; j < i; ++j)
- fence_get(fences[j]);
+ dma_fence_get(fences[j]);
- array = fence_array_create(i, fences, fence_context,
+ array = dma_fence_array_create(i, fences, fence_context,
seqno, true);
if (!array) {
for (j = 0; j < i; ++j)
- fence_put(fences[j]);
+ dma_fence_put(fences[j]);
kfree(fences);
r = -ENOMEM;
goto error;
@@ -240,7 +248,7 @@ int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
r = amdgpu_sync_fence(ring->adev, sync, &array->base);
- fence_put(&array->base);
+ dma_fence_put(&array->base);
if (r)
goto error;
@@ -254,7 +262,7 @@ int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
/* Check if we can use a VMID already assigned to this VM */
i = ring->idx;
do {
- struct fence *flushed;
+ struct dma_fence *flushed;
id = vm->ids[i++];
if (i == AMDGPU_MAX_RINGS)
@@ -276,12 +284,12 @@ int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
continue;
if (id->last_flush->context != fence_context &&
- !fence_is_signaled(id->last_flush))
+ !dma_fence_is_signaled(id->last_flush))
continue;
flushed = id->flushed_updates;
if (updates &&
- (!flushed || fence_is_later(updates, flushed)))
+ (!flushed || dma_fence_is_later(updates, flushed)))
continue;
/* Good we can use this VMID. Remember this submission as
@@ -312,14 +320,14 @@ int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
if (r)
goto error;
- fence_put(id->first);
- id->first = fence_get(fence);
+ dma_fence_put(id->first);
+ id->first = dma_fence_get(fence);
- fence_put(id->last_flush);
+ dma_fence_put(id->last_flush);
id->last_flush = NULL;
- fence_put(id->flushed_updates);
- id->flushed_updates = fence_get(updates);
+ dma_fence_put(id->flushed_updates);
+ id->flushed_updates = dma_fence_get(updates);
id->pd_gpu_addr = job->vm_pd_addr;
id->current_gpu_reset_count = atomic_read(&adev->gpu_reset_counter);
@@ -338,9 +346,9 @@ error:
static bool amdgpu_vm_ring_has_compute_vm_bug(struct amdgpu_ring *ring)
{
struct amdgpu_device *adev = ring->adev;
- const struct amdgpu_ip_block_version *ip_block;
+ const struct amdgpu_ip_block *ip_block;
- if (ring->type != AMDGPU_RING_TYPE_COMPUTE)
+ if (ring->funcs->type != AMDGPU_RING_TYPE_COMPUTE)
/* only compute rings */
return false;
@@ -348,10 +356,10 @@ static bool amdgpu_vm_ring_has_compute_vm_bug(struct amdgpu_ring *ring)
if (!ip_block)
return false;
- if (ip_block->major <= 7) {
+ if (ip_block->version->major <= 7) {
/* gfx7 has no workaround */
return true;
- } else if (ip_block->major == 8) {
+ } else if (ip_block->version->major == 8) {
if (adev->gfx.mec_fw_version >= 673)
/* gfx8 is fixed in MEC firmware 673 */
return false;
@@ -390,7 +398,7 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring, struct amdgpu_job *job)
if (ring->funcs->emit_vm_flush && (job->vm_needs_flush ||
amdgpu_vm_is_gpu_reset(adev, id))) {
- struct fence *fence;
+ struct dma_fence *fence;
trace_amdgpu_vm_flush(job->vm_pd_addr, ring->idx, job->vm_id);
amdgpu_ring_emit_vm_flush(ring, job->vm_id, job->vm_pd_addr);
@@ -400,7 +408,7 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring, struct amdgpu_job *job)
return r;
mutex_lock(&adev->vm_manager.lock);
- fence_put(id->last_flush);
+ dma_fence_put(id->last_flush);
id->last_flush = fence;
mutex_unlock(&adev->vm_manager.lock);
}
@@ -467,10 +475,9 @@ struct amdgpu_bo_va *amdgpu_vm_bo_find(struct amdgpu_vm *vm,
}
/**
- * amdgpu_vm_update_pages - helper to call the right asic function
+ * amdgpu_vm_do_set_ptes - helper to call the right asic function
*
- * @adev: amdgpu_device pointer
- * @vm_update_params: see amdgpu_vm_update_params definition
+ * @params: see amdgpu_pte_update_params definition
* @pe: addr of the page entry
* @addr: dst addr to write into pe
* @count: number of page entries to update
@@ -480,92 +487,46 @@ struct amdgpu_bo_va *amdgpu_vm_bo_find(struct amdgpu_vm *vm,
* Traces the parameters and calls the right asic functions
* to setup the page table using the DMA.
*/
-static void amdgpu_vm_update_pages(struct amdgpu_device *adev,
- struct amdgpu_vm_update_params
- *vm_update_params,
- uint64_t pe, uint64_t addr,
- unsigned count, uint32_t incr,
- uint32_t flags)
+static void amdgpu_vm_do_set_ptes(struct amdgpu_pte_update_params *params,
+ uint64_t pe, uint64_t addr,
+ unsigned count, uint32_t incr,
+ uint32_t flags)
{
- trace_amdgpu_vm_set_page(pe, addr, count, incr, flags);
+ trace_amdgpu_vm_set_ptes(pe, addr, count, incr, flags);
- if (vm_update_params->src) {
- amdgpu_vm_copy_pte(adev, vm_update_params->ib,
- pe, (vm_update_params->src + (addr >> 12) * 8), count);
-
- } else if (vm_update_params->pages_addr) {
- amdgpu_vm_write_pte(adev, vm_update_params->ib,
- vm_update_params->pages_addr,
- pe, addr, count, incr, flags);
-
- } else if (count < 3) {
- amdgpu_vm_write_pte(adev, vm_update_params->ib, NULL, pe, addr,
- count, incr, flags);
+ if (count < 3) {
+ amdgpu_vm_write_pte(params->adev, params->ib, pe,
+ addr | flags, count, incr);
} else {
- amdgpu_vm_set_pte_pde(adev, vm_update_params->ib, pe, addr,
+ amdgpu_vm_set_pte_pde(params->adev, params->ib, pe, addr,
count, incr, flags);
}
}
/**
- * amdgpu_vm_clear_bo - initially clear the page dir/table
+ * amdgpu_vm_do_copy_ptes - copy the PTEs from the GART
*
- * @adev: amdgpu_device pointer
- * @bo: bo to clear
+ * @params: see amdgpu_pte_update_params definition
+ * @pe: addr of the page entry
+ * @addr: dst addr to write into pe
+ * @count: number of page entries to update
+ * @incr: increase next addr by incr bytes
+ * @flags: hw access flags
*
- * need to reserve bo first before calling it.
+ * Traces the parameters and calls the DMA function to copy the PTEs.
*/
-static int amdgpu_vm_clear_bo(struct amdgpu_device *adev,
- struct amdgpu_vm *vm,
- struct amdgpu_bo *bo)
+static void amdgpu_vm_do_copy_ptes(struct amdgpu_pte_update_params *params,
+ uint64_t pe, uint64_t addr,
+ unsigned count, uint32_t incr,
+ uint32_t flags)
{
- struct amdgpu_ring *ring;
- struct fence *fence = NULL;
- struct amdgpu_job *job;
- struct amdgpu_vm_update_params vm_update_params;
- unsigned entries;
- uint64_t addr;
- int r;
+ uint64_t src = (params->src + (addr >> 12) * 8);
- memset(&vm_update_params, 0, sizeof(vm_update_params));
- ring = container_of(vm->entity.sched, struct amdgpu_ring, sched);
- r = reservation_object_reserve_shared(bo->tbo.resv);
- if (r)
- return r;
+ trace_amdgpu_vm_copy_ptes(pe, src, count);
- r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
- if (r)
- goto error;
-
- addr = amdgpu_bo_gpu_offset(bo);
- entries = amdgpu_bo_size(bo) / 8;
-
- r = amdgpu_job_alloc_with_ib(adev, 64, &job);
- if (r)
- goto error;
-
- vm_update_params.ib = &job->ibs[0];
- amdgpu_vm_update_pages(adev, &vm_update_params, addr, 0, entries,
- 0, 0);
- amdgpu_ring_pad_ib(ring, &job->ibs[0]);
-
- WARN_ON(job->ibs[0].length_dw > 64);
- r = amdgpu_job_submit(job, ring, &vm->entity,
- AMDGPU_FENCE_OWNER_VM, &fence);
- if (r)
- goto error_free;
-
- amdgpu_bo_fence(bo, fence, true);
- fence_put(fence);
- return 0;
-
-error_free:
- amdgpu_job_free(job);
-
-error:
- return r;
+ amdgpu_vm_copy_pte(params->adev, params->ib, pe, src, count);
}
/**
@@ -577,28 +538,22 @@ error:
* Look up the physical address of the page that the pte resolves
* to and return the pointer for the page table entry.
*/
-uint64_t amdgpu_vm_map_gart(const dma_addr_t *pages_addr, uint64_t addr)
+static uint64_t amdgpu_vm_map_gart(const dma_addr_t *pages_addr, uint64_t addr)
{
uint64_t result;
- if (pages_addr) {
- /* page table offset */
- result = pages_addr[addr >> PAGE_SHIFT];
+ /* page table offset */
+ result = pages_addr[addr >> PAGE_SHIFT];
- /* in case cpu page size != gpu page size*/
- result |= addr & (~PAGE_MASK);
-
- } else {
- /* No mapping required */
- result = addr;
- }
+ /* in case cpu page size != gpu page size*/
+ result |= addr & (~PAGE_MASK);
result &= 0xFFFFFFFFFFFFF000ULL;
return result;
}
-/**
+/*
* amdgpu_vm_update_pdes - make sure that page directory is valid
*
* @adev: amdgpu_device pointer
@@ -613,20 +568,20 @@ uint64_t amdgpu_vm_map_gart(const dma_addr_t *pages_addr, uint64_t addr)
int amdgpu_vm_update_page_directory(struct amdgpu_device *adev,
struct amdgpu_vm *vm)
{
+ struct amdgpu_bo *shadow;
struct amdgpu_ring *ring;
- struct amdgpu_bo *pd = vm->page_directory;
- uint64_t pd_addr = amdgpu_bo_gpu_offset(pd);
+ uint64_t pd_addr, shadow_addr;
uint32_t incr = AMDGPU_VM_PTE_COUNT * 8;
- uint64_t last_pde = ~0, last_pt = ~0;
+ uint64_t last_pde = ~0, last_pt = ~0, last_shadow = ~0;
unsigned count = 0, pt_idx, ndw;
struct amdgpu_job *job;
- struct amdgpu_vm_update_params vm_update_params;
- struct fence *fence = NULL;
+ struct amdgpu_pte_update_params params;
+ struct dma_fence *fence = NULL;
int r;
- memset(&vm_update_params, 0, sizeof(vm_update_params));
ring = container_of(vm->entity.sched, struct amdgpu_ring, sched);
+ shadow = vm->page_directory->shadow;
/* padding, etc. */
ndw = 64;
@@ -634,68 +589,107 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev,
/* assume the worst case */
ndw += vm->max_pde_used * 6;
+ pd_addr = amdgpu_bo_gpu_offset(vm->page_directory);
+ if (shadow) {
+ r = amdgpu_ttm_bind(&shadow->tbo, &shadow->tbo.mem);
+ if (r)
+ return r;
+ shadow_addr = amdgpu_bo_gpu_offset(shadow);
+ ndw *= 2;
+ } else {
+ shadow_addr = 0;
+ }
+
r = amdgpu_job_alloc_with_ib(adev, ndw * 4, &job);
if (r)
return r;
- vm_update_params.ib = &job->ibs[0];
+ memset(&params, 0, sizeof(params));
+ params.adev = adev;
+ params.ib = &job->ibs[0];
/* walk over the address space and update the page directory */
for (pt_idx = 0; pt_idx <= vm->max_pde_used; ++pt_idx) {
- struct amdgpu_bo *bo = vm->page_tables[pt_idx].entry.robj;
+ struct amdgpu_bo *bo = vm->page_tables[pt_idx].bo;
uint64_t pde, pt;
if (bo == NULL)
continue;
+ if (bo->shadow) {
+ struct amdgpu_bo *pt_shadow = bo->shadow;
+
+ r = amdgpu_ttm_bind(&pt_shadow->tbo,
+ &pt_shadow->tbo.mem);
+ if (r)
+ return r;
+ }
+
pt = amdgpu_bo_gpu_offset(bo);
if (vm->page_tables[pt_idx].addr == pt)
continue;
+
vm->page_tables[pt_idx].addr = pt;
pde = pd_addr + pt_idx * 8;
if (((last_pde + 8 * count) != pde) ||
- ((last_pt + incr * count) != pt)) {
+ ((last_pt + incr * count) != pt) ||
+ (count == AMDGPU_VM_MAX_UPDATE_SIZE)) {
if (count) {
- amdgpu_vm_update_pages(adev, &vm_update_params,
- last_pde, last_pt,
- count, incr,
- AMDGPU_PTE_VALID);
+ if (shadow)
+ amdgpu_vm_do_set_ptes(&params,
+ last_shadow,
+ last_pt, count,
+ incr,
+ AMDGPU_PTE_VALID);
+
+ amdgpu_vm_do_set_ptes(&params, last_pde,
+ last_pt, count, incr,
+ AMDGPU_PTE_VALID);
}
count = 1;
last_pde = pde;
+ last_shadow = shadow_addr + pt_idx * 8;
last_pt = pt;
} else {
++count;
}
}
- if (count)
- amdgpu_vm_update_pages(adev, &vm_update_params,
- last_pde, last_pt,
- count, incr, AMDGPU_PTE_VALID);
+ if (count) {
+ if (vm->page_directory->shadow)
+ amdgpu_vm_do_set_ptes(&params, last_shadow, last_pt,
+ count, incr, AMDGPU_PTE_VALID);
- if (vm_update_params.ib->length_dw != 0) {
- amdgpu_ring_pad_ib(ring, vm_update_params.ib);
- amdgpu_sync_resv(adev, &job->sync, pd->tbo.resv,
- AMDGPU_FENCE_OWNER_VM);
- WARN_ON(vm_update_params.ib->length_dw > ndw);
- r = amdgpu_job_submit(job, ring, &vm->entity,
- AMDGPU_FENCE_OWNER_VM, &fence);
- if (r)
- goto error_free;
-
- amdgpu_bo_fence(pd, fence, true);
- fence_put(vm->page_directory_fence);
- vm->page_directory_fence = fence_get(fence);
- fence_put(fence);
+ amdgpu_vm_do_set_ptes(&params, last_pde, last_pt,
+ count, incr, AMDGPU_PTE_VALID);
+ }
- } else {
+ if (params.ib->length_dw == 0) {
amdgpu_job_free(job);
+ return 0;
}
+ amdgpu_ring_pad_ib(ring, params.ib);
+ amdgpu_sync_resv(adev, &job->sync, vm->page_directory->tbo.resv,
+ AMDGPU_FENCE_OWNER_VM);
+ if (shadow)
+ amdgpu_sync_resv(adev, &job->sync, shadow->tbo.resv,
+ AMDGPU_FENCE_OWNER_VM);
+
+ WARN_ON(params.ib->length_dw > ndw);
+ r = amdgpu_job_submit(job, ring, &vm->entity,
+ AMDGPU_FENCE_OWNER_VM, &fence);
+ if (r)
+ goto error_free;
+
+ amdgpu_bo_fence(vm->page_directory, fence, true);
+ dma_fence_put(vm->page_directory_fence);
+ vm->page_directory_fence = dma_fence_get(fence);
+ dma_fence_put(fence);
+
return 0;
error_free:
@@ -704,91 +698,9 @@ error_free:
}
/**
- * amdgpu_vm_frag_ptes - add fragment information to PTEs
- *
- * @adev: amdgpu_device pointer
- * @vm_update_params: see amdgpu_vm_update_params definition
- * @pe_start: first PTE to handle
- * @pe_end: last PTE to handle
- * @addr: addr those PTEs should point to
- * @flags: hw mapping flags
- */
-static void amdgpu_vm_frag_ptes(struct amdgpu_device *adev,
- struct amdgpu_vm_update_params
- *vm_update_params,
- uint64_t pe_start, uint64_t pe_end,
- uint64_t addr, uint32_t flags)
-{
- /**
- * The MC L1 TLB supports variable sized pages, based on a fragment
- * field in the PTE. When this field is set to a non-zero value, page
- * granularity is increased from 4KB to (1 << (12 + frag)). The PTE
- * flags are considered valid for all PTEs within the fragment range
- * and corresponding mappings are assumed to be physically contiguous.
- *
- * The L1 TLB can store a single PTE for the whole fragment,
- * significantly increasing the space available for translation
- * caching. This leads to large improvements in throughput when the
- * TLB is under pressure.
- *
- * The L2 TLB distributes small and large fragments into two
- * asymmetric partitions. The large fragment cache is significantly
- * larger. Thus, we try to use large fragments wherever possible.
- * Userspace can support this by aligning virtual base address and
- * allocation size to the fragment size.
- */
-
- /* SI and newer are optimized for 64KB */
- uint64_t frag_flags = AMDGPU_PTE_FRAG_64KB;
- uint64_t frag_align = 0x80;
-
- uint64_t frag_start = ALIGN(pe_start, frag_align);
- uint64_t frag_end = pe_end & ~(frag_align - 1);
-
- unsigned count;
-
- /* Abort early if there isn't anything to do */
- if (pe_start == pe_end)
- return;
-
- /* system pages are non continuously */
- if (vm_update_params->src || vm_update_params->pages_addr ||
- !(flags & AMDGPU_PTE_VALID) || (frag_start >= frag_end)) {
-
- count = (pe_end - pe_start) / 8;
- amdgpu_vm_update_pages(adev, vm_update_params, pe_start,
- addr, count, AMDGPU_GPU_PAGE_SIZE,
- flags);
- return;
- }
-
- /* handle the 4K area at the beginning */
- if (pe_start != frag_start) {
- count = (frag_start - pe_start) / 8;
- amdgpu_vm_update_pages(adev, vm_update_params, pe_start, addr,
- count, AMDGPU_GPU_PAGE_SIZE, flags);
- addr += AMDGPU_GPU_PAGE_SIZE * count;
- }
-
- /* handle the area in the middle */
- count = (frag_end - frag_start) / 8;
- amdgpu_vm_update_pages(adev, vm_update_params, frag_start, addr, count,
- AMDGPU_GPU_PAGE_SIZE, flags | frag_flags);
-
- /* handle the 4K area at the end */
- if (frag_end != pe_end) {
- addr += AMDGPU_GPU_PAGE_SIZE * count;
- count = (pe_end - frag_end) / 8;
- amdgpu_vm_update_pages(adev, vm_update_params, frag_end, addr,
- count, AMDGPU_GPU_PAGE_SIZE, flags);
- }
-}
-
-/**
* amdgpu_vm_update_ptes - make sure that page tables are valid
*
- * @adev: amdgpu_device pointer
- * @vm_update_params: see amdgpu_vm_update_params definition
+ * @params: see amdgpu_pte_update_params definition
* @vm: requested vm
* @start: start of GPU address range
* @end: end of GPU address range
@@ -797,16 +709,14 @@ static void amdgpu_vm_frag_ptes(struct amdgpu_device *adev,
*
* Update the page tables in the range @start - @end.
*/
-static void amdgpu_vm_update_ptes(struct amdgpu_device *adev,
- struct amdgpu_vm_update_params
- *vm_update_params,
+static void amdgpu_vm_update_ptes(struct amdgpu_pte_update_params *params,
struct amdgpu_vm *vm,
uint64_t start, uint64_t end,
uint64_t dst, uint32_t flags)
{
const uint64_t mask = AMDGPU_VM_PTE_COUNT - 1;
- uint64_t cur_pe_start, cur_pe_end, cur_dst;
+ uint64_t cur_pe_start, cur_nptes, cur_dst;
uint64_t addr; /* next GPU address to be updated */
uint64_t pt_idx;
struct amdgpu_bo *pt;
@@ -816,8 +726,12 @@ static void amdgpu_vm_update_ptes(struct amdgpu_device *adev,
/* initialize the variables */
addr = start;
pt_idx = addr >> amdgpu_vm_block_size;
- pt = vm->page_tables[pt_idx].entry.robj;
-
+ pt = vm->page_tables[pt_idx].bo;
+ if (params->shadow) {
+ if (!pt->shadow)
+ return;
+ pt = pt->shadow;
+ }
if ((addr & ~mask) == (end & ~mask))
nptes = end - addr;
else
@@ -825,7 +739,7 @@ static void amdgpu_vm_update_ptes(struct amdgpu_device *adev,
cur_pe_start = amdgpu_bo_gpu_offset(pt);
cur_pe_start += (addr & mask) * 8;
- cur_pe_end = cur_pe_start + 8 * nptes;
+ cur_nptes = nptes;
cur_dst = dst;
/* for next ptb*/
@@ -835,7 +749,12 @@ static void amdgpu_vm_update_ptes(struct amdgpu_device *adev,
/* walk over the address space and update the page tables */
while (addr < end) {
pt_idx = addr >> amdgpu_vm_block_size;
- pt = vm->page_tables[pt_idx].entry.robj;
+ pt = vm->page_tables[pt_idx].bo;
+ if (params->shadow) {
+ if (!pt->shadow)
+ return;
+ pt = pt->shadow;
+ }
if ((addr & ~mask) == (end & ~mask))
nptes = end - addr;
@@ -845,19 +764,19 @@ static void amdgpu_vm_update_ptes(struct amdgpu_device *adev,
next_pe_start = amdgpu_bo_gpu_offset(pt);
next_pe_start += (addr & mask) * 8;
- if (cur_pe_end == next_pe_start) {
+ if ((cur_pe_start + 8 * cur_nptes) == next_pe_start &&
+ ((cur_nptes + nptes) <= AMDGPU_VM_MAX_UPDATE_SIZE)) {
/* The next ptb is consecutive to current ptb.
- * Don't call amdgpu_vm_frag_ptes now.
+ * Don't call the update function now.
* Will update two ptbs together in future.
*/
- cur_pe_end += 8 * nptes;
+ cur_nptes += nptes;
} else {
- amdgpu_vm_frag_ptes(adev, vm_update_params,
- cur_pe_start, cur_pe_end,
- cur_dst, flags);
+ params->func(params, cur_pe_start, cur_dst, cur_nptes,
+ AMDGPU_GPU_PAGE_SIZE, flags);
cur_pe_start = next_pe_start;
- cur_pe_end = next_pe_start + 8 * nptes;
+ cur_nptes = nptes;
cur_dst = dst;
}
@@ -866,8 +785,75 @@ static void amdgpu_vm_update_ptes(struct amdgpu_device *adev,
dst += nptes * AMDGPU_GPU_PAGE_SIZE;
}
- amdgpu_vm_frag_ptes(adev, vm_update_params, cur_pe_start,
- cur_pe_end, cur_dst, flags);
+ params->func(params, cur_pe_start, cur_dst, cur_nptes,
+ AMDGPU_GPU_PAGE_SIZE, flags);
+}
+
+/*
+ * amdgpu_vm_frag_ptes - add fragment information to PTEs
+ *
+ * @params: see amdgpu_pte_update_params definition
+ * @vm: requested vm
+ * @start: first PTE to handle
+ * @end: last PTE to handle
+ * @dst: addr those PTEs should point to
+ * @flags: hw mapping flags
+ */
+static void amdgpu_vm_frag_ptes(struct amdgpu_pte_update_params *params,
+ struct amdgpu_vm *vm,
+ uint64_t start, uint64_t end,
+ uint64_t dst, uint32_t flags)
+{
+ /**
+ * The MC L1 TLB supports variable sized pages, based on a fragment
+ * field in the PTE. When this field is set to a non-zero value, page
+ * granularity is increased from 4KB to (1 << (12 + frag)). The PTE
+ * flags are considered valid for all PTEs within the fragment range
+ * and corresponding mappings are assumed to be physically contiguous.
+ *
+ * The L1 TLB can store a single PTE for the whole fragment,
+ * significantly increasing the space available for translation
+ * caching. This leads to large improvements in throughput when the
+ * TLB is under pressure.
+ *
+ * The L2 TLB distributes small and large fragments into two
+ * asymmetric partitions. The large fragment cache is significantly
+ * larger. Thus, we try to use large fragments wherever possible.
+ * Userspace can support this by aligning virtual base address and
+ * allocation size to the fragment size.
+ */
+
+ /* SI and newer are optimized for 64KB */
+ uint64_t frag_flags = AMDGPU_PTE_FRAG(AMDGPU_LOG2_PAGES_PER_FRAG);
+ uint64_t frag_align = 1 << AMDGPU_LOG2_PAGES_PER_FRAG;
+
+ uint64_t frag_start = ALIGN(start, frag_align);
+ uint64_t frag_end = end & ~(frag_align - 1);
+
+ /* system pages are non continuously */
+ if (params->src || !(flags & AMDGPU_PTE_VALID) ||
+ (frag_start >= frag_end)) {
+
+ amdgpu_vm_update_ptes(params, vm, start, end, dst, flags);
+ return;
+ }
+
+ /* handle the 4K area at the beginning */
+ if (start != frag_start) {
+ amdgpu_vm_update_ptes(params, vm, start, frag_start,
+ dst, flags);
+ dst += (frag_start - start) * AMDGPU_GPU_PAGE_SIZE;
+ }
+
+ /* handle the area in the middle */
+ amdgpu_vm_update_ptes(params, vm, frag_start, frag_end, dst,
+ flags | frag_flags);
+
+ /* handle the 4K area at the end */
+ if (frag_end != end) {
+ dst += (frag_end - frag_start) * AMDGPU_GPU_PAGE_SIZE;
+ amdgpu_vm_update_ptes(params, vm, frag_end, end, dst, flags);
+ }
}
/**
@@ -888,26 +874,31 @@ static void amdgpu_vm_update_ptes(struct amdgpu_device *adev,
* Returns 0 for success, -EINVAL for failure.
*/
static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
- struct fence *exclusive,
+ struct dma_fence *exclusive,
uint64_t src,
dma_addr_t *pages_addr,
struct amdgpu_vm *vm,
uint64_t start, uint64_t last,
uint32_t flags, uint64_t addr,
- struct fence **fence)
+ struct dma_fence **fence)
{
struct amdgpu_ring *ring;
void *owner = AMDGPU_FENCE_OWNER_VM;
unsigned nptes, ncmds, ndw;
struct amdgpu_job *job;
- struct amdgpu_vm_update_params vm_update_params;
- struct fence *f = NULL;
+ struct amdgpu_pte_update_params params;
+ struct dma_fence *f = NULL;
int r;
+ memset(&params, 0, sizeof(params));
+ params.adev = adev;
+ params.src = src;
+
ring = container_of(vm->entity.sched, struct amdgpu_ring, sched);
- memset(&vm_update_params, 0, sizeof(vm_update_params));
- vm_update_params.src = src;
- vm_update_params.pages_addr = pages_addr;
+
+ memset(&params, 0, sizeof(params));
+ params.adev = adev;
+ params.src = src;
/* sync to everything on unmapping */
if (!(flags & AMDGPU_PTE_VALID))
@@ -924,30 +915,53 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
/* padding, etc. */
ndw = 64;
- if (vm_update_params.src) {
+ if (src) {
/* only copy commands needed */
ndw += ncmds * 7;
- } else if (vm_update_params.pages_addr) {
- /* header for write data commands */
- ndw += ncmds * 4;
+ params.func = amdgpu_vm_do_copy_ptes;
+
+ } else if (pages_addr) {
+ /* copy commands needed */
+ ndw += ncmds * 7;
- /* body of write data command */
+ /* and also PTEs */
ndw += nptes * 2;
+ params.func = amdgpu_vm_do_copy_ptes;
+
} else {
/* set page commands needed */
ndw += ncmds * 10;
/* two extra commands for begin/end of fragment */
ndw += 2 * 10;
+
+ params.func = amdgpu_vm_do_set_ptes;
}
r = amdgpu_job_alloc_with_ib(adev, ndw * 4, &job);
if (r)
return r;
- vm_update_params.ib = &job->ibs[0];
+ params.ib = &job->ibs[0];
+
+ if (!src && pages_addr) {
+ uint64_t *pte;
+ unsigned i;
+
+ /* Put the PTEs at the end of the IB. */
+ i = ndw - nptes * 2;
+ pte= (uint64_t *)&(job->ibs->ptr[i]);
+ params.src = job->ibs->gpu_addr + i * 4;
+
+ for (i = 0; i < nptes; ++i) {
+ pte[i] = amdgpu_vm_map_gart(pages_addr, addr + i *
+ AMDGPU_GPU_PAGE_SIZE);
+ pte[i] |= flags;
+ }
+ addr = 0;
+ }
r = amdgpu_sync_fence(adev, &job->sync, exclusive);
if (r)
@@ -962,11 +976,13 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
if (r)
goto error_free;
- amdgpu_vm_update_ptes(adev, &vm_update_params, vm, start,
- last + 1, addr, flags);
+ params.shadow = true;
+ amdgpu_vm_frag_ptes(&params, vm, start, last + 1, addr, flags);
+ params.shadow = false;
+ amdgpu_vm_frag_ptes(&params, vm, start, last + 1, addr, flags);
- amdgpu_ring_pad_ib(ring, vm_update_params.ib);
- WARN_ON(vm_update_params.ib->length_dw > ndw);
+ amdgpu_ring_pad_ib(ring, params.ib);
+ WARN_ON(params.ib->length_dw > ndw);
r = amdgpu_job_submit(job, ring, &vm->entity,
AMDGPU_FENCE_OWNER_VM, &f);
if (r)
@@ -974,10 +990,10 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
amdgpu_bo_fence(vm->page_directory, f, true);
if (fence) {
- fence_put(*fence);
- *fence = fence_get(f);
+ dma_fence_put(*fence);
+ *fence = dma_fence_get(f);
}
- fence_put(f);
+ dma_fence_put(f);
return 0;
error_free:
@@ -994,8 +1010,8 @@ error_free:
* @pages_addr: DMA addresses to use for mapping
* @vm: requested vm
* @mapping: mapped range and flags to use for the update
- * @addr: addr to set the area to
* @flags: HW flags for the mapping
+ * @nodes: array of drm_mm_nodes with the MC addresses
* @fence: optional resulting fence
*
* Split the mapping into smaller chunks so that each update fits
@@ -1003,17 +1019,16 @@ error_free:
* Returns 0 for success, -EINVAL for failure.
*/
static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev,
- struct fence *exclusive,
+ struct dma_fence *exclusive,
uint32_t gtt_flags,
dma_addr_t *pages_addr,
struct amdgpu_vm *vm,
struct amdgpu_bo_va_mapping *mapping,
- uint32_t flags, uint64_t addr,
- struct fence **fence)
+ uint32_t flags,
+ struct drm_mm_node *nodes,
+ struct dma_fence **fence)
{
- const uint64_t max_size = 64ULL * 1024ULL * 1024ULL / AMDGPU_GPU_PAGE_SIZE;
-
- uint64_t src = 0, start = mapping->it.start;
+ uint64_t pfn, src = 0, start = mapping->it.start;
int r;
/* normally,bo_va->flags only contians READABLE and WIRTEABLE bit go here
@@ -1026,23 +1041,40 @@ static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev,
trace_amdgpu_vm_bo_update(mapping);
- if (pages_addr) {
- if (flags == gtt_flags)
- src = adev->gart.table_addr + (addr >> 12) * 8;
- addr = 0;
+ pfn = mapping->offset >> PAGE_SHIFT;
+ if (nodes) {
+ while (pfn >= nodes->size) {
+ pfn -= nodes->size;
+ ++nodes;
+ }
}
- addr += mapping->offset;
- if (!pages_addr || src)
- return amdgpu_vm_bo_update_mapping(adev, exclusive,
- src, pages_addr, vm,
- start, mapping->it.last,
- flags, addr, fence);
+ do {
+ uint64_t max_entries;
+ uint64_t addr, last;
- while (start != mapping->it.last + 1) {
- uint64_t last;
+ if (nodes) {
+ addr = nodes->start << PAGE_SHIFT;
+ max_entries = (nodes->size - pfn) *
+ (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE);
+ } else {
+ addr = 0;
+ max_entries = S64_MAX;
+ }
+
+ if (pages_addr) {
+ if (flags == gtt_flags)
+ src = adev->gart.table_addr +
+ (addr >> AMDGPU_GPU_PAGE_SHIFT) * 8;
+ else
+ max_entries = min(max_entries, 16ull * 1024ull);
+ addr = 0;
+ } else if (flags & AMDGPU_PTE_VALID) {
+ addr += adev->vm_manager.vram_base_offset;
+ }
+ addr += pfn << PAGE_SHIFT;
- last = min((uint64_t)mapping->it.last, start + max_size - 1);
+ last = min((uint64_t)mapping->it.last, start + max_entries - 1);
r = amdgpu_vm_bo_update_mapping(adev, exclusive,
src, pages_addr, vm,
start, last, flags, addr,
@@ -1050,9 +1082,14 @@ static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev,
if (r)
return r;
+ pfn += last - start + 1;
+ if (nodes && nodes->size == pfn) {
+ pfn = 0;
+ ++nodes;
+ }
start = last + 1;
- addr += max_size * AMDGPU_GPU_PAGE_SIZE;
- }
+
+ } while (unlikely(start != mapping->it.last + 1));
return 0;
}
@@ -1062,52 +1099,44 @@ static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev,
*
* @adev: amdgpu_device pointer
* @bo_va: requested BO and VM object
- * @mem: ttm mem
+ * @clear: if true clear the entries
*
* Fill in the page table entries for @bo_va.
* Returns 0 for success, -EINVAL for failure.
- *
- * Object have to be reserved and mutex must be locked!
*/
int amdgpu_vm_bo_update(struct amdgpu_device *adev,
struct amdgpu_bo_va *bo_va,
- struct ttm_mem_reg *mem)
+ bool clear)
{
struct amdgpu_vm *vm = bo_va->vm;
struct amdgpu_bo_va_mapping *mapping;
dma_addr_t *pages_addr = NULL;
uint32_t gtt_flags, flags;
- struct fence *exclusive;
- uint64_t addr;
+ struct ttm_mem_reg *mem;
+ struct drm_mm_node *nodes;
+ struct dma_fence *exclusive;
int r;
- if (mem) {
+ if (clear) {
+ mem = NULL;
+ nodes = NULL;
+ exclusive = NULL;
+ } else {
struct ttm_dma_tt *ttm;
- addr = (u64)mem->start << PAGE_SHIFT;
- switch (mem->mem_type) {
- case TTM_PL_TT:
+ mem = &bo_va->bo->tbo.mem;
+ nodes = mem->mm_node;
+ if (mem->mem_type == TTM_PL_TT) {
ttm = container_of(bo_va->bo->tbo.ttm, struct
ttm_dma_tt, ttm);
pages_addr = ttm->dma_address;
- break;
-
- case TTM_PL_VRAM:
- addr += adev->vm_manager.vram_base_offset;
- break;
-
- default:
- break;
}
-
exclusive = reservation_object_get_excl(bo_va->bo->tbo.resv);
- } else {
- addr = 0;
- exclusive = NULL;
}
flags = amdgpu_ttm_tt_pte_flags(adev, bo_va->bo->tbo.ttm, mem);
- gtt_flags = (adev == bo_va->bo->adev) ? flags : 0;
+ gtt_flags = (amdgpu_ttm_is_bound(bo_va->bo->tbo.ttm) &&
+ adev == amdgpu_ttm_adev(bo_va->bo->tbo.bdev)) ? flags : 0;
spin_lock(&vm->status_lock);
if (!list_empty(&bo_va->vm_status))
@@ -1117,7 +1146,7 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev,
list_for_each_entry(mapping, &bo_va->invalids, list) {
r = amdgpu_vm_bo_split_mapping(adev, exclusive,
gtt_flags, pages_addr, vm,
- mapping, flags, addr,
+ mapping, flags, nodes,
&bo_va->last_pt_update);
if (r)
return r;
@@ -1134,7 +1163,7 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev,
spin_lock(&vm->status_lock);
list_splice_init(&bo_va->invalids, &bo_va->valids);
list_del_init(&bo_va->vm_status);
- if (!mem)
+ if (clear)
list_add(&bo_va->vm_status, &vm->cleared);
spin_unlock(&vm->status_lock);
@@ -1197,7 +1226,7 @@ int amdgpu_vm_clear_invalids(struct amdgpu_device *adev,
struct amdgpu_bo_va, vm_status);
spin_unlock(&vm->status_lock);
- r = amdgpu_vm_bo_update(adev, bo_va, NULL);
+ r = amdgpu_vm_bo_update(adev, bo_va, true);
if (r)
return r;
@@ -1332,17 +1361,18 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev,
/* walk over the address space and allocate the page tables */
for (pt_idx = saddr; pt_idx <= eaddr; ++pt_idx) {
struct reservation_object *resv = vm->page_directory->tbo.resv;
- struct amdgpu_bo_list_entry *entry;
struct amdgpu_bo *pt;
- entry = &vm->page_tables[pt_idx].entry;
- if (entry->robj)
+ if (vm->page_tables[pt_idx].bo)
continue;
r = amdgpu_bo_create(adev, AMDGPU_VM_PTE_COUNT * 8,
AMDGPU_GPU_PAGE_SIZE, true,
AMDGPU_GEM_DOMAIN_VRAM,
- AMDGPU_GEM_CREATE_NO_CPU_ACCESS,
+ AMDGPU_GEM_CREATE_NO_CPU_ACCESS |
+ AMDGPU_GEM_CREATE_SHADOW |
+ AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS |
+ AMDGPU_GEM_CREATE_VRAM_CLEARED,
NULL, resv, &pt);
if (r)
goto error_free;
@@ -1352,17 +1382,7 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev,
*/
pt->parent = amdgpu_bo_ref(vm->page_directory);
- r = amdgpu_vm_clear_bo(adev, vm, pt);
- if (r) {
- amdgpu_bo_unref(&pt);
- goto error_free;
- }
-
- entry->robj = pt;
- entry->priority = 0;
- entry->tv.bo = &entry->robj->tbo;
- entry->tv.shared = true;
- entry->user_pages = NULL;
+ vm->page_tables[pt_idx].bo = pt;
vm->page_tables[pt_idx].addr = 0;
}
@@ -1463,7 +1483,7 @@ void amdgpu_vm_bo_rmv(struct amdgpu_device *adev,
kfree(mapping);
}
- fence_put(bo_va->last_pt_update);
+ dma_fence_put(bo_va->last_pt_update);
kfree(bo_va);
}
@@ -1541,7 +1561,10 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
r = amdgpu_bo_create(adev, pd_size, align, true,
AMDGPU_GEM_DOMAIN_VRAM,
- AMDGPU_GEM_CREATE_NO_CPU_ACCESS,
+ AMDGPU_GEM_CREATE_NO_CPU_ACCESS |
+ AMDGPU_GEM_CREATE_SHADOW |
+ AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS |
+ AMDGPU_GEM_CREATE_VRAM_CLEARED,
NULL, NULL, &vm->page_directory);
if (r)
goto error_free_sched_entity;
@@ -1550,15 +1573,13 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
if (r)
goto error_free_page_directory;
- r = amdgpu_vm_clear_bo(adev, vm, vm->page_directory);
- amdgpu_bo_unreserve(vm->page_directory);
- if (r)
- goto error_free_page_directory;
vm->last_eviction_counter = atomic64_read(&adev->num_evictions);
+ amdgpu_bo_unreserve(vm->page_directory);
return 0;
error_free_page_directory:
+ amdgpu_bo_unref(&vm->page_directory->shadow);
amdgpu_bo_unref(&vm->page_directory);
vm->page_directory = NULL;
@@ -1600,12 +1621,20 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm)
kfree(mapping);
}
- for (i = 0; i < amdgpu_vm_num_pdes(adev); i++)
- amdgpu_bo_unref(&vm->page_tables[i].entry.robj);
+ for (i = 0; i < amdgpu_vm_num_pdes(adev); i++) {
+ struct amdgpu_bo *pt = vm->page_tables[i].bo;
+
+ if (!pt)
+ continue;
+
+ amdgpu_bo_unref(&pt->shadow);
+ amdgpu_bo_unref(&pt);
+ }
drm_free_large(vm->page_tables);
+ amdgpu_bo_unref(&vm->page_directory->shadow);
amdgpu_bo_unref(&vm->page_directory);
- fence_put(vm->page_directory_fence);
+ dma_fence_put(vm->page_directory_fence);
}
/**
@@ -1629,7 +1658,8 @@ void amdgpu_vm_manager_init(struct amdgpu_device *adev)
&adev->vm_manager.ids_lru);
}
- adev->vm_manager.fence_context = fence_context_alloc(AMDGPU_MAX_RINGS);
+ adev->vm_manager.fence_context =
+ dma_fence_context_alloc(AMDGPU_MAX_RINGS);
for (i = 0; i < AMDGPU_MAX_RINGS; ++i)
adev->vm_manager.seqno[i] = 0;
@@ -1651,8 +1681,9 @@ void amdgpu_vm_manager_fini(struct amdgpu_device *adev)
for (i = 0; i < AMDGPU_NUM_VM; ++i) {
struct amdgpu_vm_id *id = &adev->vm_manager.ids[i];
- fence_put(adev->vm_manager.ids[i].first);
+ dma_fence_put(adev->vm_manager.ids[i].first);
amdgpu_sync_free(&adev->vm_manager.ids[i].active);
- fence_put(id->flushed_updates);
+ dma_fence_put(id->flushed_updates);
+ dma_fence_put(id->last_flush);
}
}