From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932265AbWHJT6G (ORCPT ); Thu, 10 Aug 2006 15:58:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932665AbWHJThL (ORCPT ); Thu, 10 Aug 2006 15:37:11 -0400 Received: from mail.suse.de ([195.135.220.2]:12177 "EHLO mx1.suse.de") by vger.kernel.org with ESMTP id S932659AbWHJThF (ORCPT ); Thu, 10 Aug 2006 15:37:05 -0400 From: Andi Kleen References: <20060810 935.775038000@suse.de> In-Reply-To: <20060810 935.775038000@suse.de> Subject: [PATCH for review] [106/145] x86_64: remove tce_cache_blast_stress() Message-Id: <20060810193704.7164713C0B@wotan.suse.de> Date: Thu, 10 Aug 2006 21:37:04 +0200 (CEST) To: undisclosed-recipients:; Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org r From: Muli Ben-Yehuda tce_cache_blast_stress was useful during bringup to stress the IOMMU's cache flushing. Now that we quiesce DMAs on every cache flush, using _stress() brings the machine down to its knees once you put it under load. Remove this debug / bringup code that isn't useful anymore completely. Signed-off-by: Muli Ben-Yehuda Signed-off-by: Jon Mason Signed-off-by: Andi Kleen --- arch/x86_64/kernel/pci-calgary.c | 11 ----------- 1 files changed, 11 deletions(-) Index: linux/arch/x86_64/kernel/pci-calgary.c =================================================================== --- linux.orig/arch/x86_64/kernel/pci-calgary.c +++ linux/arch/x86_64/kernel/pci-calgary.c @@ -129,11 +129,6 @@ static void tce_cache_blast(struct iommu #ifdef CONFIG_IOMMU_DEBUG int debugging __read_mostly = 1; -static inline void tce_cache_blast_stress(struct iommu_table *tbl) -{ - tce_cache_blast(tbl); -} - static inline unsigned long verify_bit_range(unsigned long* bitmap, int expected, unsigned long start, unsigned long end) { @@ -153,10 +148,6 @@ static inline unsigned long verify_bit_r #else /* debugging is disabled */ int debugging __read_mostly = 0; -static inline void tce_cache_blast_stress(struct iommu_table *tbl) -{ -} - static inline unsigned long verify_bit_range(unsigned long* bitmap, int expected, unsigned long start, unsigned long end) { @@ -289,8 +280,6 @@ static void __iommu_free(struct iommu_ta } __clear_bit_string(tbl->it_map, entry, npages); - - tce_cache_blast_stress(tbl); } static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr,