From: Mark Kettenis <mark.kettenis@xs4all.nl>
Subject: Re: riscv64 remove pmap_vp_remove()
To: Jonathan Gray <jsg@jsg.id.au>
Cc: tech@openbsd.org
Date: Mon, 29 Apr 2024 11:27:40 +0200

> Date: Mon, 29 Apr 2024 11:38:11 +1000
> From: Jonathan Gray <jsg@jsg.id.au>
> 
> remove unused pmap_vp_remove() function
> removed from arm64 pmap in 2022 (rev 1.87)

ok kettenis@

> Index: sys/arch/riscv64/riscv64/pmap.c
> ===================================================================
> RCS file: /cvs/src/sys/arch/riscv64/riscv64/pmap.c,v
> diff -u -p -r1.40 pmap.c
> --- sys/arch/riscv64/riscv64/pmap.c	6 Apr 2024 18:33:54 -0000	1.40
> +++ sys/arch/riscv64/riscv64/pmap.c	29 Apr 2024 01:25:54 -0000
> @@ -344,36 +344,6 @@ pmap_vp_lookup(pmap_t pm, vaddr_t va, pt
>  }
>  
>  /*
> - * Remove, and return, pted at specified address, NULL if not present
> - */
> -struct pte_desc *
> -pmap_vp_remove(pmap_t pm, vaddr_t va)
> -{
> -	struct pmapvp1 *vp1;
> -	struct pmapvp2 *vp2;
> -	struct pmapvp3 *vp3;
> -	struct pte_desc *pted;
> -
> -	vp1 = pm->pm_vp.l1;
> -
> -	vp2 = vp1->vp[VP_IDX1(va)];
> -	if (vp2 == NULL) {
> -		return NULL;
> -	}
> -
> -	vp3 = vp2->vp[VP_IDX2(va)];
> -	if (vp3 == NULL) {
> -		return NULL;
> -	}
> -
> -	pted = vp3->vp[VP_IDX3(va)];
> -	vp3->vp[VP_IDX3(va)] = NULL;
> -
> -	return pted;
> -}
> -
> -
> -/*
>   * Create a V -> P mapping for the given pmap and virtual address
>   * with reference to the pte descriptor that is used to map the page.
>   * This code should track allocations of vp table allocations
> 
>