On Mon, 4 Dec 2023 18:33:00 +0100
Boris Brezillon wrote:
> +static int panthor_gpuva_sm_step_remap(struct drm_gpuva_op *op,
> +void *priv)
> +{
> + struct panthor_vma *unmap_vma = container_of(op->remap.unmap->va,
> struct panthor_vma, base);
> + stru
On Mon, 4 Dec 2023 18:33:00 +0100
Boris Brezillon wrote:
> +/**
> + * panthor_vm_active() - Flag a VM as active
> + * @VM: VM to flag as active.
> + *
> + * Assigns an address space to a VM so it can be used by the GPU/MCU.
> + *
> + * Return: 0 on success, a negative error code otherwise.
> + *
On Mon, 4 Dec 2023 18:33:00 +0100
Boris Brezillon wrote:
> +/**
> + * panthor_vm_idle() - Flag a VM idle
> + * @VM: VM to flag as idle.
> + *
> + * When we know the GPU is done with the VM (no more jobs to process),
> + * we can relinquish the AS slot attached to this VM, if any.
> + *
> + * We
On Mon, 4 Dec 2023 18:33:00 +0100
Boris Brezillon wrote:
> +static int panthor_vm_prepare_unmap_op_ctx(struct panthor_vm_op_ctx *op_ctx,
> +struct panthor_vm *vm,
> +u64 va, u64 size)
> +{
> + u32 pt_count = 0;
>
Hi Steve,
On Fri, 8 Dec 2023 14:28:05 +
Steven Price wrote:
> > +/**
> > + * alloc_pt() - Custom page table allocator
> > + * @cookie: Cookie passed at page table allocation time.
> > + * @size: Size of the page table. This size should be fixed,
> > + * and determined at creation time based
On 04/12/2023 17:33, Boris Brezillon wrote:
> MMU and VM management is related and placed in the same source file.
>
> Page table updates are delegated to the io-pgtable-arm driver that's in
> the iommu subsystem.
>
> The VM management logic is based on drm_gpuva_mgr, and is assuming the
> VA spa
MMU and VM management is related and placed in the same source file.
Page table updates are delegated to the io-pgtable-arm driver that's in
the iommu subsystem.
The VM management logic is based on drm_gpuva_mgr, and is assuming the
VA space is mostly managed by the usermode driver, except for a
