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drm/lima: support heap buffer creation

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heap buffer is used as output of GP and input of PP for
Mali Utgard GPU. Size of heap buffer depends on the task
so is a runtime variable.

Previously we just create a large enough buffer as heap
buffer. Now we add a heap buffer type to be able to
increase the backup memory dynamically when GP fail due
to lack of heap memory.

Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Tested-by: Andreas Baierl <ichgeh@imkreisrum.de>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200116131157.13346-4-yuq825@gmail.com
This commit is contained in:
Qiang Yu
2020-01-16 21:11:55 +08:00
parent dc76cb7a1f
commit 6aebc51d7a
6 changed files with 147 additions and 11 deletions
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4
drivers/gpu/drm/lima/lima_vm.c
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@@ -155,6 +155,7 @@ err_out0:
void lima_vm_bo_del(struct lima_vm *vm, struct lima_bo *bo)
{
struct lima_bo_va *bo_va;
u32 size;
mutex_lock(&bo->lock);
@@ -166,8 +167,9 @@ void lima_vm_bo_del(struct lima_vm *vm, struct lima_bo *bo)
mutex_lock(&vm->lock);
size = bo->heap_size ? bo->heap_size : bo_va->node.size;
lima_vm_unmap_range(vm, bo_va->node.start,
bo_va->node.start + bo_va->node.size - 1);
bo_va->node.start + size - 1);
drm_mm_remove_node(&bo_va->node);