From: Thiemo Seufer <ths@networkno.de>
To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: nigel@mips.com, ralf@linux-mips.org, dan@debian.org,
macro@linux-mips.org, linux-mips@linux-mips.org
Subject: Re: [PATCH] fast path for rdhwr emulation for TLS
Date: Mon, 11 Sep 2006 10:49:05 +0100 [thread overview]
Message-ID: <20060911094905.GB13414@networkno.de> (raw)
In-Reply-To: <20060911.175029.37531637.nemoto@toshiba-tops.co.jp>
Atsushi Nemoto wrote:
[snip]
> @@ -375,6 +376,72 @@ #endif
> BUILD_HANDLER dsp dsp sti silent /* #26 */
> BUILD_HANDLER reserved reserved sti verbose /* others */
>
> + .align 5
> + LEAF(handle_ri_rdhwr_vivt)
> +#ifdef CONFIG_MIPS_MT_SMTC
> + PANIC_PIC("handle_ri_rdhwr_vivt called")
> +#else
> + .set push
> + .set noat
> + .set noreorder
> + /* check if TLB contains a entry for EPC */
> + MFC0 k1, CP0_ENTRYHI
> + andi k1, 0xff /* ASID_MASK */
> + MFC0 k0, CP0_EPC
> + PTR_SRL k0, PAGE_SHIFT + 1
> + PTR_SLL k0, PAGE_SHIFT + 1
> + or k1, k0
> + MTC0 k1, CP0_ENTRYHI
> + mtc0_tlbw_hazard
> + tlbp
This needs a .set mips3/.set mips0 pair.
> +#ifdef CONFIG_CPU_MIPSR2
> + _ehb /* tlb_probe_hazard */
> +#else
> + nop; nop; nop; nop; nop; nop /* tlb_probe_hazard */
> +#endif
What about a mtc0_tlbp_hazard macro here?
Thiemo
next prev parent reply other threads:[~2006-09-11 10:38 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-07 15:00 [PATCH] fast path for rdhwr emulation for TLS Atsushi Nemoto
2006-07-07 15:22 ` Maciej W. Rozycki
2006-07-07 16:12 ` Atsushi Nemoto
2006-07-07 16:43 ` Atsushi Nemoto
2006-07-07 17:04 ` Maciej W. Rozycki
2006-07-07 18:22 ` Ralf Baechle
2006-07-07 16:58 ` Maciej W. Rozycki
2006-07-08 16:12 ` Atsushi Nemoto
2006-07-10 14:40 ` Atsushi Nemoto
2006-09-14 17:28 ` Ralf Baechle
2006-09-15 3:09 ` Atsushi Nemoto
2006-07-10 14:55 ` Atsushi Nemoto
2006-07-11 2:53 ` Daniel Jacobowitz
2006-07-11 3:20 ` Atsushi Nemoto
2006-09-08 17:39 ` Nigel Stephens
2006-09-09 13:56 ` Atsushi Nemoto
2006-09-10 22:30 ` Nigel Stephens
2006-09-11 5:04 ` Atsushi Nemoto
2006-09-11 8:50 ` Atsushi Nemoto
2006-09-11 9:49 ` Thiemo Seufer [this message]
2006-09-11 14:13 ` Atsushi Nemoto
2006-09-11 15:17 ` Thiemo Seufer
2006-09-11 13:09 ` Maciej W. Rozycki
2006-09-11 14:30 ` Atsushi Nemoto
2006-09-11 17:53 ` Maciej W. Rozycki
2006-09-12 1:55 ` Atsushi Nemoto
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