[RFC PATCH] drm/amdgpu: move ttm bo->offset to amdgpu_bo
Nirmoy
nirmodas at amd.com
Tue Feb 11 12:06:40 UTC 2020
Hi Christian
On 2/11/20 12:50 PM, Christian König wrote:
> Am 11.02.20 um 12:17 schrieb Nirmoy Das:
>> GPU address should belong to driver not in memory management.
>> This patch moves ttm bo.offset and gpu_offset calculation to amdgpu
>> driver.
>
> Actually for amdgpu we should be able to get completely rid of
> bo->offset. All we need to do is to change amdgpu_bo_gpu_offset() and
> do the correct offset calculation there.
If I am not wrong with this patch amdgpu completly got rid of ttm's
bo->offset and ttm_mem_type_manager->gpu_offset. Do you mean we don't
even need amdgpu_bo->offset(added by this patch) as well ?
Regards,
Nirmoy
>
> Apart from that looks good to me.
>
> Regards,
> Christian.
>
>>
>> Signed-off-by: Nirmoy Das <nirmoy.das at amd.com>
>> ---
>> drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 2 +-
>> drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c | 4 +-
>> drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 4 +-
>> drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 2 +-
>> drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 2 +-
>> drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 22 ++++++++--
>> drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 3 ++
>> drivers/gpu/drm/amd/amdgpu/amdgpu_test.c | 2 +-
>> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 40 +++++++++----------
>> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 2 +-
>> drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c | 8 ++--
>> .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
>> 12 files changed, 55 insertions(+), 38 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
>> index 8609287620ea..613047ea9065 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
>> @@ -263,7 +263,7 @@ int amdgpu_amdkfd_alloc_gtt_mem(struct kgd_dev
>> *kgd, size_t size,
>> goto allocate_mem_pin_bo_failed;
>> }
>> - r = amdgpu_ttm_alloc_gart(&bo->tbo);
>> + r = amdgpu_ttm_alloc_gart(bo);
>> if (r) {
>> dev_err(adev->dev, "%p bind failed\n", bo);
>> goto allocate_mem_kmap_bo_failed;
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c
>> index d9b35df33806..f29986231b27 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c
>> @@ -98,7 +98,7 @@ static void amdgpu_benchmark_move(struct
>> amdgpu_device *adev, unsigned size,
>> amdgpu_bo_unreserve(sobj);
>> goto out_cleanup;
>> }
>> - r = amdgpu_ttm_alloc_gart(&sobj->tbo);
>> + r = amdgpu_ttm_alloc_gart(sobj);
>> amdgpu_bo_unreserve(sobj);
>> if (r) {
>> goto out_cleanup;
>> @@ -117,7 +117,7 @@ static void amdgpu_benchmark_move(struct
>> amdgpu_device *adev, unsigned size,
>> amdgpu_bo_unreserve(sobj);
>> goto out_cleanup;
>> }
>> - r = amdgpu_ttm_alloc_gart(&dobj->tbo);
>> + r = amdgpu_ttm_alloc_gart(dobj);
>> amdgpu_bo_unreserve(dobj);
>> if (r) {
>> goto out_cleanup;
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>> index 80ba6dfc54e2..921719d92ab1 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>> @@ -642,7 +642,7 @@ static int amdgpu_cs_parser_bos(struct
>> amdgpu_cs_parser *p,
>> if (!r && p->uf_entry.tv.bo) {
>> struct amdgpu_bo *uf = ttm_to_amdgpu_bo(p->uf_entry.tv.bo);
>> - r = amdgpu_ttm_alloc_gart(&uf->tbo);
>> + r = amdgpu_ttm_alloc_gart(uf);
>> p->job->uf_addr += amdgpu_bo_gpu_offset(uf);
>> }
>> @@ -1676,5 +1676,5 @@ int amdgpu_cs_find_mapping(struct
>> amdgpu_cs_parser *parser,
>> return r;
>> }
>> - return amdgpu_ttm_alloc_gart(&(*bo)->tbo);
>> + return amdgpu_ttm_alloc_gart(*bo);
>> }
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
>> index ca9056b0472a..3d0aa2b2926f 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
>> @@ -199,7 +199,7 @@ int amdgpu_display_crtc_page_flip_target(struct
>> drm_crtc *crtc,
>> }
>> }
>> - r = amdgpu_ttm_alloc_gart(&new_abo->tbo);
>> + r = amdgpu_ttm_alloc_gart(new_abo);
>> if (unlikely(r != 0)) {
>> DRM_ERROR("%p bind failed\n", new_abo);
>> goto unpin;
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
>> index 143753d237e7..a02b1cbd006d 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
>> @@ -174,7 +174,7 @@ static int amdgpufb_create_pinned_object(struct
>> amdgpu_fbdev *rfbdev,
>> goto out_unref;
>> }
>> - ret = amdgpu_ttm_alloc_gart(&abo->tbo);
>> + ret = amdgpu_ttm_alloc_gart(abo);
>> if (ret) {
>> amdgpu_bo_unreserve(abo);
>> dev_err(adev->dev, "%p bind failed\n", abo);
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
>> index 6f60a581e3ba..650758a5b3aa 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
>> @@ -274,7 +274,7 @@ int amdgpu_bo_create_reserved(struct
>> amdgpu_device *adev,
>> goto error_unreserve;
>> }
>> - r = amdgpu_ttm_alloc_gart(&(*bo_ptr)->tbo);
>> + r = amdgpu_ttm_alloc_gart(*bo_ptr);
>> if (r) {
>> dev_err(adev->dev, "%p bind failed\n", *bo_ptr);
>> goto error_unpin;
>> @@ -917,7 +917,7 @@ int amdgpu_bo_pin_restricted(struct amdgpu_bo
>> *bo, u32 domain,
>> bo->pin_count++;
>> if (max_offset != 0) {
>> - u64 domain_start = bo->tbo.bdev->man[mem_type].gpu_offset;
>> + u64 domain_start = amdgpu_bo_gpu_start(adev, mem_type);
>> WARN_ON_ONCE(max_offset <
>> (amdgpu_bo_gpu_offset(bo) - domain_start));
>> }
>> @@ -1248,6 +1248,18 @@ int amdgpu_bo_get_metadata(struct amdgpu_bo
>> *bo, void *buffer,
>> return 0;
>> }
>> +uint64_t amdgpu_bo_gpu_start(struct amdgpu_device *adev, uint32_t
>> type)
>> +{
>> + switch(type) {
>> + case TTM_PL_TT:
>> + return adev->gmc.gart_start;
>> + case TTM_PL_VRAM:
>> + return adev->gmc.vram_start;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> /**
>> * amdgpu_bo_move_notify - notification about a memory move
>> * @bo: pointer to a buffer object
>> @@ -1278,6 +1290,10 @@ void amdgpu_bo_move_notify(struct
>> ttm_buffer_object *bo,
>> if (evict)
>> atomic64_inc(&adev->num_evictions);
>> + if (new_mem)
>> + abo->offset = (new_mem->start << PAGE_SHIFT) +
>> + amdgpu_bo_gpu_start(amdgpu_ttm_adev(bo->bdev),
>> new_mem->mem_type);
>> +
>> /* update statistics */
>> if (!new_mem)
>> return;
>> @@ -1467,7 +1483,7 @@ u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo)
>> WARN_ON_ONCE(bo->tbo.mem.mem_type == TTM_PL_VRAM &&
>> !(bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS));
>> - return amdgpu_gmc_sign_extend(bo->tbo.offset);
>> + return amdgpu_gmc_sign_extend(bo->offset);
>> }
>> /**
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
>> index 96d805889e8d..c7e1028fd31f 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
>> @@ -94,6 +94,8 @@ struct amdgpu_bo {
>> unsigned prime_shared_count;
>> /* per VM structure for page tables and with virtual addresses */
>> struct amdgpu_vm_bo_base *vm_bo;
>> + /* GPU address space is independent of CPU word size */
>> + uint64_t offset;
>> /* Constant after initialization */
>> struct amdgpu_bo *parent;
>> struct amdgpu_bo *shadow;
>> @@ -294,6 +296,7 @@ int amdgpu_bo_restore_shadow(struct amdgpu_bo
>> *shadow,
>> uint32_t amdgpu_bo_get_preferred_pin_domain(struct amdgpu_device
>> *adev,
>> uint32_t domain);
>> +uint64_t amdgpu_bo_gpu_start(struct amdgpu_device *adev, uint32_t
>> type);
>> /*
>> * sub allocation
>> */
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_test.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_test.c
>> index 476f1f89aaad..dfab64bbb5fa 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_test.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_test.c
>> @@ -103,7 +103,7 @@ static void amdgpu_do_test_moves(struct
>> amdgpu_device *adev)
>> DRM_ERROR("Failed to pin GTT object %d\n", i);
>> goto out_lclean_unres;
>> }
>> - r = amdgpu_ttm_alloc_gart(>t_obj[i]->tbo);
>> + r = amdgpu_ttm_alloc_gart(gtt_obj[i]);
>> if (r) {
>> DRM_ERROR("%p bind failed\n", gtt_obj[i]);
>> goto out_lclean_unpin;
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>> index 2c1d1eb1a7e1..15d9e8f807b9 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>> @@ -103,7 +103,6 @@ static int amdgpu_init_mem_type(struct
>> ttm_bo_device *bdev, uint32_t type,
>> case TTM_PL_TT:
>> /* GTT memory */
>> man->func = &amdgpu_gtt_mgr_func;
>> - man->gpu_offset = adev->gmc.gart_start;
>> man->available_caching = TTM_PL_MASK_CACHING;
>> man->default_caching = TTM_PL_FLAG_CACHED;
>> man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
>> @@ -111,7 +110,6 @@ static int amdgpu_init_mem_type(struct
>> ttm_bo_device *bdev, uint32_t type,
>> case TTM_PL_VRAM:
>> /* "On-card" video ram */
>> man->func = &amdgpu_vram_mgr_func;
>> - man->gpu_offset = adev->gmc.vram_start;
>> man->flags = TTM_MEMTYPE_FLAG_FIXED |
>> TTM_MEMTYPE_FLAG_MAPPABLE;
>> man->available_caching = TTM_PL_FLAG_UNCACHED |
>> TTM_PL_FLAG_WC;
>> @@ -122,7 +120,6 @@ static int amdgpu_init_mem_type(struct
>> ttm_bo_device *bdev, uint32_t type,
>> case AMDGPU_PL_OA:
>> /* On-chip GDS memory*/
>> man->func = &ttm_bo_manager_func;
>> - man->gpu_offset = 0;
>> man->flags = TTM_MEMTYPE_FLAG_FIXED | TTM_MEMTYPE_FLAG_CMA;
>> man->available_caching = TTM_PL_FLAG_UNCACHED;
>> man->default_caching = TTM_PL_FLAG_UNCACHED;
>> @@ -270,7 +267,7 @@ static uint64_t amdgpu_mm_node_addr(struct
>> ttm_buffer_object *bo,
>> if (mm_node->start != AMDGPU_BO_INVALID_OFFSET) {
>> addr = mm_node->start << PAGE_SHIFT;
>> - addr += bo->bdev->man[mem->mem_type].gpu_offset;
>> + addr += amdgpu_bo_gpu_start(amdgpu_ttm_adev(bo->bdev),
>> mem->mem_type);
>> }
>> return addr;
>> }
>> @@ -1086,27 +1083,28 @@ static int amdgpu_ttm_backend_bind(struct
>> ttm_tt *ttm,
>> /**
>> * amdgpu_ttm_alloc_gart - Allocate GART memory for buffer object
>> */
>> -int amdgpu_ttm_alloc_gart(struct ttm_buffer_object *bo)
>> +int amdgpu_ttm_alloc_gart(struct amdgpu_bo *bo)
>> {
>> - struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
>> + struct ttm_buffer_object *tbo = &bo->tbo;
>> + struct amdgpu_device *adev = amdgpu_ttm_adev(tbo->bdev);
>> struct ttm_operation_ctx ctx = { false, false };
>> - struct amdgpu_ttm_tt *gtt = (void*)bo->ttm;
>> + struct amdgpu_ttm_tt *gtt = (void*)tbo->ttm;
>> struct ttm_mem_reg tmp;
>> struct ttm_placement placement;
>> struct ttm_place placements;
>> uint64_t addr, flags;
>> int r;
>> - if (bo->mem.start != AMDGPU_BO_INVALID_OFFSET)
>> + if (tbo->mem.start != AMDGPU_BO_INVALID_OFFSET)
>> return 0;
>> - addr = amdgpu_gmc_agp_addr(bo);
>> + addr = amdgpu_gmc_agp_addr(tbo);
>> if (addr != AMDGPU_BO_INVALID_OFFSET) {
>> - bo->mem.start = addr >> PAGE_SHIFT;
>> + tbo->mem.start = addr >> PAGE_SHIFT;
>> } else {
>> /* allocate GART space */
>> - tmp = bo->mem;
>> + tmp = tbo->mem;
>> tmp.mm_node = NULL;
>> placement.num_placement = 1;
>> placement.placement = &placements;
>> @@ -1114,30 +1112,30 @@ int amdgpu_ttm_alloc_gart(struct
>> ttm_buffer_object *bo)
>> placement.busy_placement = &placements;
>> placements.fpfn = 0;
>> placements.lpfn = adev->gmc.gart_size >> PAGE_SHIFT;
>> - placements.flags = (bo->mem.placement & ~TTM_PL_MASK_MEM) |
>> + placements.flags = (tbo->mem.placement & ~TTM_PL_MASK_MEM) |
>> TTM_PL_FLAG_TT;
>> - r = ttm_bo_mem_space(bo, &placement, &tmp, &ctx);
>> + r = ttm_bo_mem_space(tbo, &placement, &tmp, &ctx);
>> if (unlikely(r))
>> return r;
>> /* compute PTE flags for this buffer object */
>> - flags = amdgpu_ttm_tt_pte_flags(adev, bo->ttm, &tmp);
>> + flags = amdgpu_ttm_tt_pte_flags(adev, tbo->ttm, &tmp);
>> /* Bind pages */
>> gtt->offset = (u64)tmp.start << PAGE_SHIFT;
>> - r = amdgpu_ttm_gart_bind(adev, bo, flags);
>> + r = amdgpu_ttm_gart_bind(adev, tbo, flags);
>> if (unlikely(r)) {
>> - ttm_bo_mem_put(bo, &tmp);
>> + ttm_bo_mem_put(tbo, &tmp);
>> return r;
>> }
>> - ttm_bo_mem_put(bo, &bo->mem);
>> - bo->mem = tmp;
>> + ttm_bo_mem_put(tbo, &tbo->mem);
>> + tbo->mem = tmp;
>> }
>> - bo->offset = (bo->mem.start << PAGE_SHIFT) +
>> - bo->bdev->man[bo->mem.mem_type].gpu_offset;
>> + bo->offset = (tbo->mem.start << PAGE_SHIFT) +
>> + amdgpu_bo_gpu_start(adev, tbo->mem.mem_type);
>> return 0;
>> }
>> @@ -2149,7 +2147,7 @@ int amdgpu_fill_buffer(struct amdgpu_bo *bo,
>> }
>> if (bo->tbo.mem.mem_type == TTM_PL_TT) {
>> - r = amdgpu_ttm_alloc_gart(&bo->tbo);
>> + r = amdgpu_ttm_alloc_gart(bo);
>> if (r)
>> return r;
>> }
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
>> index f1ebd424510c..4f6e7ef2b004 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
>> @@ -100,7 +100,7 @@ int amdgpu_fill_buffer(struct amdgpu_bo *bo,
>> struct dma_fence **fence);
>> int amdgpu_mmap(struct file *filp, struct vm_area_struct *vma);
>> -int amdgpu_ttm_alloc_gart(struct ttm_buffer_object *bo);
>> +int amdgpu_ttm_alloc_gart(struct amdgpu_bo *bo);
>> int amdgpu_ttm_recover_gart(struct ttm_buffer_object *tbo);
>> #if IS_ENABLED(CONFIG_DRM_AMDGPU_USERPTR)
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
>> index 4cc7881f438c..c810cda7a06e 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
>> @@ -37,12 +37,12 @@ static int amdgpu_vm_sdma_map_table(struct
>> amdgpu_bo *table)
>> {
>> int r;
>> - r = amdgpu_ttm_alloc_gart(&table->tbo);
>> + r = amdgpu_ttm_alloc_gart(table);
>> if (r)
>> return r;
>> if (table->shadow)
>> - r = amdgpu_ttm_alloc_gart(&table->shadow->tbo);
>> + r = amdgpu_ttm_alloc_gart(table->shadow);
>> return r;
>> }
>> @@ -140,7 +140,7 @@ static void amdgpu_vm_sdma_copy_ptes(struct
>> amdgpu_vm_update_params *p,
>> src += p->num_dw_left * 4;
>> - pe += amdgpu_gmc_sign_extend(bo->tbo.offset);
>> + pe += amdgpu_gmc_sign_extend(bo->offset);
>> trace_amdgpu_vm_copy_ptes(pe, src, count, p->direct);
>> amdgpu_vm_copy_pte(p->adev, ib, pe, src, count);
>> @@ -167,7 +167,7 @@ static void amdgpu_vm_sdma_set_ptes(struct
>> amdgpu_vm_update_params *p,
>> {
>> struct amdgpu_ib *ib = p->job->ibs;
>> - pe += amdgpu_gmc_sign_extend(bo->tbo.offset);
>> + pe += amdgpu_gmc_sign_extend(bo->offset);
>> trace_amdgpu_vm_set_ptes(pe, addr, count, incr, flags, p->direct);
>> if (count < 3) {
>> amdgpu_vm_write_pte(p->adev, ib, pe, addr | flags,
>> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> index 6786d34f7d04..277dbc6ba8ec 100644
>> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> @@ -5212,7 +5212,7 @@ static int dm_plane_helper_prepare_fb(struct
>> drm_plane *plane,
>> return r;
>> }
>> - r = amdgpu_ttm_alloc_gart(&rbo->tbo);
>> + r = amdgpu_ttm_alloc_gart(rbo);
>> if (unlikely(r != 0)) {
>> amdgpu_bo_unpin(rbo);
>> ttm_eu_backoff_reservation(&ticket, &list);
>
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