From: Christian König <christian.koe...@amd.com>

Just use the list structure directly for representing the entries.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/radeon/radeon.h     | 12 +++---
 drivers/gpu/drm/radeon/radeon_cs.c  |  4 +-
 drivers/gpu/drm/radeon/radeon_gem.c | 11 ++----
 drivers/gpu/drm/radeon/radeon_vm.c  | 75 ++++++++++++++++---------------------
 4 files changed, 41 insertions(+), 61 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 699446a..d652ccb 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -911,8 +911,8 @@ struct radeon_mec {
                                  R600_PTE_SYSTEM | R600_PTE_VALID )

 struct radeon_vm_pt {
-       struct radeon_bo                *bo;
-       uint64_t                        addr;
+       struct radeon_bo_list   list;
+       uint64_t                addr;
 };

 struct radeon_vm_id {
@@ -939,7 +939,7 @@ struct radeon_vm {
        struct list_head        freed;

        /* contains the page directory */
-       struct radeon_bo        *page_directory;
+       struct radeon_bo_list   page_directory;
        unsigned                max_pde_used;

        /* array of page tables, one for each page directory entry */
@@ -1077,7 +1077,6 @@ struct radeon_cs_parser {
        unsigned                nrelocs;
        struct radeon_bo_list   *relocs;
        struct radeon_bo_list   **relocs_ptr;
-       struct radeon_bo_list   *vm_bos;
        struct list_head        validated;
        unsigned                dma_reloc_idx;
        /* indices of various chunks */
@@ -2976,9 +2975,8 @@ int radeon_vm_manager_init(struct radeon_device *rdev);
 void radeon_vm_manager_fini(struct radeon_device *rdev);
 int radeon_vm_init(struct radeon_device *rdev, struct radeon_vm *vm);
 void radeon_vm_fini(struct radeon_device *rdev, struct radeon_vm *vm);
-struct radeon_bo_list *radeon_vm_get_bos(struct radeon_device *rdev,
-                                         struct radeon_vm *vm,
-                                          struct list_head *head);
+void radeon_vm_add_bos(struct radeon_device *rdev, struct radeon_vm *vm,
+                      struct list_head *head);
 struct radeon_fence *radeon_vm_grab_id(struct radeon_device *rdev,
                                       struct radeon_vm *vm, int ring);
 void radeon_vm_flush(struct radeon_device *rdev,
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c 
b/drivers/gpu/drm/radeon/radeon_cs.c
index 7a90378..551980c 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -193,8 +193,7 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser 
*p)
        radeon_cs_buckets_get_list(&buckets, &p->validated);

        if (p->cs_flags & RADEON_CS_USE_VM)
-               p->vm_bos = radeon_vm_get_bos(p->rdev, p->ib.vm,
-                                             &p->validated);
+               radeon_vm_add_bos(p->rdev, p->ib.vm, &p->validated);

        if (need_mmap_lock)
                down_read(&current->mm->mmap_sem);
@@ -450,7 +449,6 @@ static void radeon_cs_parser_fini(struct radeon_cs_parser 
*parser, int error, bo
        kfree(parser->track);
        kfree(parser->relocs);
        kfree(parser->relocs_ptr);
-       drm_free_large(parser->vm_bos);
        for (i = 0; i < parser->nchunks; i++)
                drm_free_large(parser->chunks[i].kdata);
        kfree(parser->chunks);
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c 
b/drivers/gpu/drm/radeon/radeon_gem.c
index 4eafec6..26d1af1 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -554,7 +554,6 @@ static void radeon_gem_va_update_vm(struct radeon_device 
*rdev,
                                    struct radeon_bo_va *bo_va)
 {
        struct ttm_validate_buffer tv, *entry;
-       struct radeon_bo_list *vm_bos;
        struct ww_acquire_ctx ticket;
        struct list_head list;
        unsigned domain;
@@ -566,13 +565,11 @@ static void radeon_gem_va_update_vm(struct radeon_device 
*rdev,
        tv.shared = true;
        list_add(&tv.head, &list);

-       vm_bos = radeon_vm_get_bos(rdev, bo_va->vm, &list);
-       if (!vm_bos)
-               return;
+       radeon_vm_add_bos(rdev, bo_va->vm, &list);

        r = ttm_eu_reserve_buffers(&ticket, &list, true);
        if (r)
-               goto error_free;
+               goto error_done;

        list_for_each_entry(entry, &list, head) {
                domain = radeon_mem_type_to_domain(entry->bo->mem.mem_type);
@@ -592,9 +589,7 @@ static void radeon_gem_va_update_vm(struct radeon_device 
*rdev,
 error_unreserve:
        ttm_eu_backoff_reservation(&ticket, &list);

-error_free:
-       drm_free_large(vm_bos);
-
+error_done:
        if (r)
                DRM_ERROR("Couldn't update BO_VA (%d)\n", r);
 }
diff --git a/drivers/gpu/drm/radeon/radeon_vm.c 
b/drivers/gpu/drm/radeon/radeon_vm.c
index 658183f..b09c998 100644
--- a/drivers/gpu/drm/radeon/radeon_vm.c
+++ b/drivers/gpu/drm/radeon/radeon_vm.c
@@ -117,7 +117,7 @@ void radeon_vm_manager_fini(struct radeon_device *rdev)
 }

 /**
- * radeon_vm_get_bos - add the vm BOs to a validation list
+ * radeon_vm_add_bos - add the PD/PT BOs to a validation list
  *
  * @vm: vm providing the BOs
  * @head: head of validation list
@@ -125,41 +125,18 @@ void radeon_vm_manager_fini(struct radeon_device *rdev)
  * Add the page directory to the list of BOs to
  * validate for command submission (cayman+).
  */
-struct radeon_bo_list *radeon_vm_get_bos(struct radeon_device *rdev,
-                                         struct radeon_vm *vm,
-                                         struct list_head *head)
+void radeon_vm_add_bos(struct radeon_device *rdev, struct radeon_vm *vm,
+                      struct list_head *head)
 {
-       struct radeon_bo_list *list;
        unsigned i, idx;

-       list = drm_malloc_ab(vm->max_pde_used + 2,
-                            sizeof(struct radeon_bo_list));
-       if (!list)
-               return NULL;
-
-       /* add the vm page table to the list */
-       list[0].robj = vm->page_directory;
-       list[0].prefered_domains = RADEON_GEM_DOMAIN_VRAM;
-       list[0].allowed_domains = RADEON_GEM_DOMAIN_VRAM;
-       list[0].tv.bo = &vm->page_directory->tbo;
-       list[0].tv.shared = true;
-       list[0].tiling_flags = 0;
-       list_add(&list[0].tv.head, head);
-
+       list_add(&vm->page_directory.tv.head, head);
        for (i = 0, idx = 1; i <= vm->max_pde_used; i++) {
-               if (!vm->page_tables[i].bo)
+               if (!vm->page_tables[i].list.robj)
                        continue;

-               list[idx].robj = vm->page_tables[i].bo;
-               list[idx].prefered_domains = RADEON_GEM_DOMAIN_VRAM;
-               list[idx].allowed_domains = RADEON_GEM_DOMAIN_VRAM;
-               list[idx].tv.bo = &list[idx].robj->tbo;
-               list[idx].tv.shared = true;
-               list[idx].tiling_flags = 0;
-               list_add(&list[idx++].tv.head, head);
+               list_add(&vm->page_tables[i].list.tv.head, head);
        }
-
-       return list;
 }

 /**
@@ -237,7 +214,7 @@ void radeon_vm_flush(struct radeon_device *rdev,
                     struct radeon_vm *vm,
                     int ring, struct radeon_fence *updates)
 {
-       uint64_t pd_addr = radeon_bo_gpu_offset(vm->page_directory);
+       uint64_t pd_addr = vm->page_directory.gpu_offset;
        struct radeon_vm_id *vm_id = &vm->ids[ring];

        if (pd_addr != vm_id->pd_gpu_addr || !vm_id->flushed_updates ||
@@ -528,9 +505,10 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,

        /* walk over the address space and allocate the page tables */
        for (pt_idx = soffset; pt_idx <= eoffset; ++pt_idx) {
+               struct radeon_vm_pt *entry = &vm->page_tables[pt_idx];
                struct radeon_bo *pt;

-               if (vm->page_tables[pt_idx].bo)
+               if (entry->list.robj)
                        continue;

                r = radeon_bo_create(rdev, RADEON_VM_PTE_COUNT * 8,
@@ -547,8 +525,13 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
                        return r;
                }

-               vm->page_tables[pt_idx].addr = 0;
-               vm->page_tables[pt_idx].bo = pt;
+               entry->list.robj = pt;
+               entry->list.prefered_domains = RADEON_GEM_DOMAIN_VRAM;
+               entry->list.allowed_domains = RADEON_GEM_DOMAIN_VRAM;
+               entry->list.tv.bo = &pt->tbo;
+               entry->list.tv.shared = true;
+               entry->list.tiling_flags = 0;
+               entry->addr = 0;
        }

        return 0;
@@ -614,7 +597,7 @@ static uint32_t radeon_vm_page_flags(uint32_t flags)
 int radeon_vm_update_page_directory(struct radeon_device *rdev,
                                    struct radeon_vm *vm)
 {
-       struct radeon_bo *pd = vm->page_directory;
+       struct radeon_bo *pd = vm->page_directory.robj;
        uint64_t pd_addr = radeon_bo_gpu_offset(pd);
        uint32_t incr = RADEON_VM_PTE_COUNT * 8;
        uint64_t last_pde = ~0, last_pt = ~0;
@@ -639,7 +622,7 @@ int radeon_vm_update_page_directory(struct radeon_device 
*rdev,

        /* walk over the address space and update the page directory */
        for (pt_idx = 0; pt_idx <= vm->max_pde_used; ++pt_idx) {
-               struct radeon_bo *bo = vm->page_tables[pt_idx].bo;
+               struct radeon_bo *bo = vm->page_tables[pt_idx].list.robj;
                uint64_t pde, pt;

                if (bo == NULL)
@@ -793,7 +776,7 @@ static int radeon_vm_update_ptes(struct radeon_device *rdev,
        /* walk over the address space and update the page tables */
        for (addr = start; addr < end; ) {
                uint64_t pt_idx = addr >> radeon_vm_block_size;
-               struct radeon_bo *pt = vm->page_tables[pt_idx].bo;
+               struct radeon_bo *pt = vm->page_tables[pt_idx].list.robj;
                unsigned nptes;
                uint64_t pte;
                int r;
@@ -860,7 +843,7 @@ static void radeon_vm_fence_pts(struct radeon_vm *vm,
        end >>= radeon_vm_block_size;

        for (i = start; i <= end; ++i)
-               radeon_bo_fence(vm->page_tables[i].bo, fence, true);
+               radeon_bo_fence(vm->page_tables[i].list.robj, fence, true);
 }

 /**
@@ -1162,17 +1145,23 @@ int radeon_vm_init(struct radeon_device *rdev, struct 
radeon_vm *vm)

        r = radeon_bo_create(rdev, pd_size, align, true,
                             RADEON_GEM_DOMAIN_VRAM, 0, NULL,
-                            NULL, &vm->page_directory);
+                            NULL, &vm->page_directory.robj);
        if (r)
                return r;

-       r = radeon_vm_clear_bo(rdev, vm->page_directory);
+       r = radeon_vm_clear_bo(rdev, vm->page_directory.robj);
        if (r) {
-               radeon_bo_unref(&vm->page_directory);
-               vm->page_directory = NULL;
+               radeon_bo_unref(&vm->page_directory.robj);
+               vm->page_directory.robj = NULL;
                return r;
        }

+       vm->page_directory.prefered_domains = RADEON_GEM_DOMAIN_VRAM;
+       vm->page_directory.allowed_domains = RADEON_GEM_DOMAIN_VRAM;
+       vm->page_directory.tv.bo = &vm->page_directory.robj->tbo;
+       vm->page_directory.tv.shared = true;
+       vm->page_directory.tiling_flags = 0;
+
        return 0;
 }

@@ -1210,10 +1199,10 @@ void radeon_vm_fini(struct radeon_device *rdev, struct 
radeon_vm *vm)
        }

        for (i = 0; i < radeon_vm_num_pdes(rdev); i++)
-               radeon_bo_unref(&vm->page_tables[i].bo);
+               radeon_bo_unref(&vm->page_tables[i].list.robj);
        kfree(vm->page_tables);

-       radeon_bo_unref(&vm->page_directory);
+       radeon_bo_unref(&vm->page_directory.robj);

        for (i = 0; i < RADEON_NUM_RINGS; ++i) {
                radeon_fence_unref(&vm->ids[i].flushed_updates);
-- 
1.9.1

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