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drm/amdgpu: dispatch job for vm 

use kernel context to submit command for vm

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Christian K?nig <christian.koenig@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
This commit is contained in:
Chunming Zhou 2015-07-21 16:52:10 +08:00 committed by Alex Deucher
parent 23ca0e4e47
commit d5fc5e82a3
2 changed files with 217 additions and 48 deletions
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20
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -1221,6 +1221,19 @@ struct amdgpu_cs_chunk {
void __user *user_ptr;
};
union amdgpu_sched_job_param {
struct {
struct amdgpu_vm *vm;
uint64_t start;
uint64_t last;
struct amdgpu_fence **fence;
} vm_mapping;
struct {
struct amdgpu_bo *bo;
} vm;
};
struct amdgpu_cs_parser {
struct amdgpu_device *adev;
struct drm_file *filp;
@ -1245,6 +1258,7 @@ struct amdgpu_cs_parser {
struct mutex job_lock;
struct work_struct job_work;
int (*prepare_job)(struct amdgpu_cs_parser *sched_job);
union amdgpu_sched_job_param job_param;
int (*run_job)(struct amdgpu_cs_parser *sched_job);
int (*free_job)(struct amdgpu_cs_parser *sched_job);
};
@ -2255,6 +2269,12 @@ void amdgpu_pci_config_reset(struct amdgpu_device *adev);
bool amdgpu_card_posted(struct amdgpu_device *adev);
void amdgpu_update_display_priority(struct amdgpu_device *adev);
bool amdgpu_boot_test_post_card(struct amdgpu_device *adev);
struct amdgpu_cs_parser *amdgpu_cs_parser_create(struct amdgpu_device *adev,
struct drm_file *filp,
struct amdgpu_ctx *ctx,
struct amdgpu_ib *ibs,
uint32_t num_ibs);
int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data);
int amdgpu_cs_get_ring(struct amdgpu_device *adev, u32 ip_type,
u32 ip_instance, u32 ring,

245
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
View File

@ -306,6 +306,24 @@ static void amdgpu_vm_update_pages(struct amdgpu_device *adev,
}
}
static int amdgpu_vm_free_job(
struct amdgpu_cs_parser *sched_job)
{
int i;
for (i = 0; i < sched_job->num_ibs; i++)
amdgpu_ib_free(sched_job->adev, &sched_job->ibs[i]);
kfree(sched_job->ibs);
return 0;
}
static int amdgpu_vm_run_job(
struct amdgpu_cs_parser *sched_job)
{
amdgpu_bo_fence(sched_job->job_param.vm.bo,
sched_job->ibs[sched_job->num_ibs -1].fence, true);
return 0;
}
/**
* amdgpu_vm_clear_bo - initially clear the page dir/table
*
@ -316,7 +334,8 @@ static int amdgpu_vm_clear_bo(struct amdgpu_device *adev,
struct amdgpu_bo *bo)
{
struct amdgpu_ring *ring = adev->vm_manager.vm_pte_funcs_ring;
struct amdgpu_ib ib;
struct amdgpu_cs_parser *sched_job = NULL;
struct amdgpu_ib *ib;
unsigned entries;
uint64_t addr;
int r;
@ -336,24 +355,54 @@ static int amdgpu_vm_clear_bo(struct amdgpu_device *adev,
addr = amdgpu_bo_gpu_offset(bo);
entries = amdgpu_bo_size(bo) / 8;
r = amdgpu_ib_get(ring, NULL, entries * 2 + 64, &ib);
if (r)
ib = kzalloc(sizeof(struct amdgpu_ib), GFP_KERNEL);
if (!ib)
goto error_unreserve;
ib.length_dw = 0;
amdgpu_vm_update_pages(adev, &ib, addr, 0, entries, 0, 0, 0);
amdgpu_vm_pad_ib(adev, &ib);
WARN_ON(ib.length_dw > 64);
r = amdgpu_ib_schedule(adev, 1, &ib, AMDGPU_FENCE_OWNER_VM);
r = amdgpu_ib_get(ring, NULL, entries * 2 + 64, ib);
if (r)
goto error_free;
amdgpu_bo_fence(bo, ib.fence, true);
ib->length_dw = 0;
amdgpu_vm_update_pages(adev, ib, addr, 0, entries, 0, 0, 0);
amdgpu_vm_pad_ib(adev, ib);
WARN_ON(ib->length_dw > 64);
if (amdgpu_enable_scheduler) {
int r;
uint64_t v_seq;
sched_job = amdgpu_cs_parser_create(adev, AMDGPU_FENCE_OWNER_VM,
adev->kernel_ctx, ib, 1);
if(!sched_job)
goto error_free;
sched_job->job_param.vm.bo = bo;
sched_job->run_job = amdgpu_vm_run_job;
sched_job->free_job = amdgpu_vm_free_job;
v_seq = atomic64_inc_return(&adev->kernel_ctx->rings[ring->idx].c_entity.last_queued_v_seq);
sched_job->uf.sequence = v_seq;
amd_sched_push_job(ring->scheduler,
&adev->kernel_ctx->rings[ring->idx].c_entity,
sched_job);
r = amd_sched_wait_emit(&adev->kernel_ctx->rings[ring->idx].c_entity,
v_seq,
true,
-1);
if (r)
DRM_ERROR("emit timeout\n");
amdgpu_bo_unreserve(bo);
return 0;
} else {
r = amdgpu_ib_schedule(adev, 1, ib, AMDGPU_FENCE_OWNER_VM);
if (r)
goto error_free;
amdgpu_bo_fence(bo, ib->fence, true);
}
error_free:
amdgpu_ib_free(adev, &ib);
amdgpu_ib_free(adev, ib);
kfree(ib);
error_unreserve:
amdgpu_bo_unreserve(bo);
@ -406,7 +455,9 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev,
uint32_t incr = AMDGPU_VM_PTE_COUNT * 8;
uint64_t last_pde = ~0, last_pt = ~0;
unsigned count = 0, pt_idx, ndw;
struct amdgpu_ib ib;
struct amdgpu_ib *ib;
struct amdgpu_cs_parser *sched_job = NULL;
int r;
/* padding, etc. */
@ -419,10 +470,14 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev,
if (ndw > 0xfffff)
return -ENOMEM;
r = amdgpu_ib_get(ring, NULL, ndw * 4, &ib);
ib = kzalloc(sizeof(struct amdgpu_ib), GFP_KERNEL);
if (!ib)
return -ENOMEM;
r = amdgpu_ib_get(ring, NULL, ndw * 4, ib);
if (r)
return r;
ib.length_dw = 0;
ib->length_dw = 0;
/* walk over the address space and update the page directory */
for (pt_idx = 0; pt_idx <= vm->max_pde_used; ++pt_idx) {
@ -442,7 +497,7 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev,
((last_pt + incr * count) != pt)) {
if (count) {
amdgpu_vm_update_pages(adev, &ib, last_pde,
amdgpu_vm_update_pages(adev, ib, last_pde,
last_pt, count, incr,
AMDGPU_PTE_VALID, 0);
}
@ -456,23 +511,59 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev,
}
if (count)
amdgpu_vm_update_pages(adev, &ib, last_pde, last_pt, count,
amdgpu_vm_update_pages(adev, ib, last_pde, last_pt, count,
incr, AMDGPU_PTE_VALID, 0);
if (ib.length_dw != 0) {
amdgpu_vm_pad_ib(adev, &ib);
amdgpu_sync_resv(adev, &ib.sync, pd->tbo.resv, AMDGPU_FENCE_OWNER_VM);
WARN_ON(ib.length_dw > ndw);
r = amdgpu_ib_schedule(adev, 1, &ib, AMDGPU_FENCE_OWNER_VM);
if (r) {
amdgpu_ib_free(adev, &ib);
return r;
if (ib->length_dw != 0) {
amdgpu_vm_pad_ib(adev, ib);
amdgpu_sync_resv(adev, &ib->sync, pd->tbo.resv, AMDGPU_FENCE_OWNER_VM);
WARN_ON(ib->length_dw > ndw);
if (amdgpu_enable_scheduler) {
int r;
uint64_t v_seq;
sched_job = amdgpu_cs_parser_create(adev, AMDGPU_FENCE_OWNER_VM,
adev->kernel_ctx,
ib, 1);
if(!sched_job)
goto error_free;
sched_job->job_param.vm.bo = pd;
sched_job->run_job = amdgpu_vm_run_job;
sched_job->free_job = amdgpu_vm_free_job;
v_seq = atomic64_inc_return(&adev->kernel_ctx->rings[ring->idx].c_entity.last_queued_v_seq);
sched_job->uf.sequence = v_seq;
amd_sched_push_job(ring->scheduler,
&adev->kernel_ctx->rings[ring->idx].c_entity,
sched_job);
r = amd_sched_wait_emit(&adev->kernel_ctx->rings[ring->idx].c_entity,
v_seq,
true,
-1);
if (r)
DRM_ERROR("emit timeout\n");
} else {
r = amdgpu_ib_schedule(adev, 1, ib, AMDGPU_FENCE_OWNER_VM);
if (r) {
amdgpu_ib_free(adev, ib);
return r;
}
amdgpu_bo_fence(pd, ib->fence, true);
}
amdgpu_bo_fence(pd, ib.fence, true);
}
amdgpu_ib_free(adev, &ib);
if (!amdgpu_enable_scheduler || ib->length_dw == 0) {
amdgpu_ib_free(adev, ib);
kfree(ib);
}
return 0;
error_free:
if (sched_job)
kfree(sched_job);
amdgpu_ib_free(adev, ib);
kfree(ib);
return -ENOMEM;
}
/**
@ -657,6 +748,20 @@ static void amdgpu_vm_fence_pts(struct amdgpu_vm *vm,
amdgpu_bo_fence(vm->page_tables[i].bo, fence, true);
}
static int amdgpu_vm_bo_update_mapping_run_job(
struct amdgpu_cs_parser *sched_job)
{
struct amdgpu_fence **fence = sched_job->job_param.vm_mapping.fence;
amdgpu_vm_fence_pts(sched_job->job_param.vm_mapping.vm,
sched_job->job_param.vm_mapping.start,
sched_job->job_param.vm_mapping.last + 1,
sched_job->ibs[sched_job->num_ibs -1].fence);
if (fence) {
amdgpu_fence_unref(fence);
*fence = amdgpu_fence_ref(sched_job->ibs[sched_job->num_ibs -1].fence);
}
return 0;
}
/**
* amdgpu_vm_bo_update_mapping - update a mapping in the vm page table
*
@ -681,7 +786,8 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
struct amdgpu_ring *ring = adev->vm_manager.vm_pte_funcs_ring;
unsigned nptes, ncmds, ndw;
uint32_t flags = gtt_flags;
struct amdgpu_ib ib;
struct amdgpu_ib *ib;
struct amdgpu_cs_parser *sched_job = NULL;
int r;
/* normally,bo_va->flags only contians READABLE and WIRTEABLE bit go here
@ -728,48 +834,91 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
if (ndw > 0xfffff)
return -ENOMEM;
r = amdgpu_ib_get(ring, NULL, ndw * 4, &ib);
if (r)
ib = kzalloc(sizeof(struct amdgpu_ib), GFP_KERNEL);
if (!ib)
return -ENOMEM;
r = amdgpu_ib_get(ring, NULL, ndw * 4, ib);
if (r) {
kfree(ib);
return r;
ib.length_dw = 0;
}
ib->length_dw = 0;
if (!(flags & AMDGPU_PTE_VALID)) {
unsigned i;
for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
struct amdgpu_fence *f = vm->ids[i].last_id_use;
r = amdgpu_sync_fence(adev, &ib.sync, &f->base);
r = amdgpu_sync_fence(adev, &ib->sync, &f->base);
if (r)
return r;
}
}
r = amdgpu_vm_update_ptes(adev, vm, &ib, mapping->it.start,
r = amdgpu_vm_update_ptes(adev, vm, ib, mapping->it.start,
mapping->it.last + 1, addr + mapping->offset,
flags, gtt_flags);
if (r) {
amdgpu_ib_free(adev, &ib);
amdgpu_ib_free(adev, ib);
kfree(ib);
return r;
}
amdgpu_vm_pad_ib(adev, &ib);
WARN_ON(ib.length_dw > ndw);
amdgpu_vm_pad_ib(adev, ib);
WARN_ON(ib->length_dw > ndw);
r = amdgpu_ib_schedule(adev, 1, &ib, AMDGPU_FENCE_OWNER_VM);
if (r) {
amdgpu_ib_free(adev, &ib);
return r;
}
amdgpu_vm_fence_pts(vm, mapping->it.start,
mapping->it.last + 1, ib.fence);
if (fence) {
amdgpu_fence_unref(fence);
*fence = amdgpu_fence_ref(ib.fence);
}
amdgpu_ib_free(adev, &ib);
if (amdgpu_enable_scheduler) {
int r;
uint64_t v_seq;
sched_job = amdgpu_cs_parser_create(adev, AMDGPU_FENCE_OWNER_VM,
adev->kernel_ctx, ib, 1);
if(!sched_job)
goto error_free;
sched_job->job_param.vm_mapping.vm = vm;
sched_job->job_param.vm_mapping.start = mapping->it.start;
sched_job->job_param.vm_mapping.last = mapping->it.last;
sched_job->job_param.vm_mapping.fence = fence;
sched_job->run_job = amdgpu_vm_bo_update_mapping_run_job;
sched_job->free_job = amdgpu_vm_free_job;
v_seq = atomic64_inc_return(&adev->kernel_ctx->rings[ring->idx].c_entity.last_queued_v_seq);
sched_job->uf.sequence = v_seq;
amd_sched_push_job(ring->scheduler,
&adev->kernel_ctx->rings[ring->idx].c_entity,
sched_job);
r = amd_sched_wait_emit(&adev->kernel_ctx->rings[ring->idx].c_entity,
v_seq,
true,
-1);
if (r)
DRM_ERROR("emit timeout\n");
} else {
r = amdgpu_ib_schedule(adev, 1, ib, AMDGPU_FENCE_OWNER_VM);
if (r) {
amdgpu_ib_free(adev, ib);
return r;
}
amdgpu_vm_fence_pts(vm, mapping->it.start,
mapping->it.last + 1, ib->fence);
if (fence) {
amdgpu_fence_unref(fence);
*fence = amdgpu_fence_ref(ib->fence);
}
amdgpu_ib_free(adev, ib);
kfree(ib);
}
return 0;
error_free:
if (sched_job)
kfree(sched_job);
amdgpu_ib_free(adev, ib);
kfree(ib);
return -ENOMEM;
}
/**