From owner-svn-src-all@freebsd.org Fri Jan 18 13:38:57 2019 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id AAB58149DE60; Fri, 18 Jan 2019 13:38:57 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 519178FE51; Fri, 18 Jan 2019 13:38:57 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 452342E3A; Fri, 18 Jan 2019 13:38:57 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x0IDcvEA085828; Fri, 18 Jan 2019 13:38:57 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x0IDcuND085826; Fri, 18 Jan 2019 13:38:56 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201901181338.x0IDcuND085826@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Fri, 18 Jan 2019 13:38:56 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r343146 - in head/sys/x86: include x86 X-SVN-Group: head X-SVN-Commit-Author: kib X-SVN-Commit-Paths: in head/sys/x86: include x86 X-SVN-Commit-Revision: 343146 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 519178FE51 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.96 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_LONG(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.97)[-0.966,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Jan 2019 13:38:57 -0000 Author: kib Date: Fri Jan 18 13:38:56 2019 New Revision: 343146 URL: https://svnweb.freebsd.org/changeset/base/343146 Log: x86 busdma: fix mis-use of bus_addr_t where vm_paddr_t is assumed. Right now bus_addr_t and vm_paddr_t are always aliased to the same underlying integer type on x86, which makes the interchange hard to detect. Shortly, i386 kernel would use uint64_t for vm_paddr_t to enable automatic use of PAE paging structures if hardware allows it, while bus_addr_t would be extended to 64bit only when PAE option is specified. Fix all places that were identified as using bus_addr_t while page address was assumed. This was performed by testing the complete PAE merging patch on machine with > 4G of RAM enabled. Reviewed by: markj Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Differential revision: https://reviews.freebsd.org/D18854 Modified: head/sys/x86/include/busdma_impl.h head/sys/x86/x86/busdma_bounce.c head/sys/x86/x86/busdma_machdep.c Modified: head/sys/x86/include/busdma_impl.h ============================================================================== --- head/sys/x86/include/busdma_impl.h Fri Jan 18 13:35:06 2019 (r343145) +++ head/sys/x86/include/busdma_impl.h Fri Jan 18 13:38:56 2019 (r343146) @@ -87,7 +87,7 @@ struct bus_dma_impl { }; void bus_dma_dflt_lock(void *arg, bus_dma_lock_op_t op); -int bus_dma_run_filter(struct bus_dma_tag_common *dmat, bus_addr_t paddr); +int bus_dma_run_filter(struct bus_dma_tag_common *dmat, vm_paddr_t paddr); int common_bus_dma_tag_create(struct bus_dma_tag_common *parent, bus_size_t alignment, bus_addr_t boundary, bus_addr_t lowaddr, bus_addr_t highaddr, Modified: head/sys/x86/x86/busdma_bounce.c ============================================================================== --- head/sys/x86/x86/busdma_bounce.c Fri Jan 18 13:35:06 2019 (r343145) +++ head/sys/x86/x86/busdma_bounce.c Fri Jan 18 13:38:56 2019 (r343146) @@ -139,7 +139,7 @@ static int alloc_bounce_pages(bus_dma_tag_t dmat, u_in static int reserve_bounce_pages(bus_dma_tag_t dmat, bus_dmamap_t map, int commit); static bus_addr_t add_bounce_page(bus_dma_tag_t dmat, bus_dmamap_t map, - vm_offset_t vaddr, bus_addr_t addr1, bus_addr_t addr2, bus_size_t size); + vm_offset_t vaddr, vm_paddr_t addr1, vm_paddr_t addr2, bus_size_t size); static void free_bounce_page(bus_dma_tag_t dmat, struct bounce_page *bpage); static void _bus_dmamap_count_pages(bus_dma_tag_t dmat, bus_dmamap_t map, pmap_t pmap, void *buf, bus_size_t buflen, int flags); @@ -507,7 +507,7 @@ static void _bus_dmamap_count_phys(bus_dma_tag_t dmat, bus_dmamap_t map, vm_paddr_t buf, bus_size_t buflen, int flags) { - bus_addr_t curaddr; + vm_paddr_t curaddr; bus_size_t sgsize; if (map != &nobounce_dmamap && map->pagesneeded == 0) { @@ -536,7 +536,7 @@ _bus_dmamap_count_pages(bus_dma_tag_t dmat, bus_dmamap { vm_offset_t vaddr; vm_offset_t vendaddr; - bus_addr_t paddr; + vm_paddr_t paddr; bus_size_t sg_len; if (map != &nobounce_dmamap && map->pagesneeded == 0) { @@ -643,12 +643,19 @@ _bus_dmamap_reserve_pages(bus_dma_tag_t dmat, bus_dmam * Add a single contiguous physical range to the segment list. */ static int -_bus_dmamap_addseg(bus_dma_tag_t dmat, bus_dmamap_t map, bus_addr_t curaddr, +_bus_dmamap_addseg(bus_dma_tag_t dmat, bus_dmamap_t map, vm_paddr_t curaddr, bus_size_t sgsize, bus_dma_segment_t *segs, int *segp) { bus_addr_t baddr, bmask; int seg; + KASSERT(curaddr <= BUS_SPACE_MAXADDR, + ("ds_addr %#jx > BUS_SPACE_MAXADDR %#jx; dmat %p fl %#x low %#jx " + "hi %#jx", + (uintmax_t)curaddr, (uintmax_t)BUS_SPACE_MAXADDR, + dmat, dmat->bounce_flags, (uintmax_t)dmat->common.lowaddr, + (uintmax_t)dmat->common.highaddr)); + /* * Make sure we don't cross any boundaries. */ @@ -695,7 +702,7 @@ bounce_bus_dmamap_load_phys(bus_dma_tag_t dmat, bus_dm int *segp) { bus_size_t sgsize; - bus_addr_t curaddr; + vm_paddr_t curaddr; int error; if (map == NULL) @@ -747,7 +754,7 @@ bounce_bus_dmamap_load_buffer(bus_dma_tag_t dmat, bus_ int *segp) { bus_size_t sgsize, max_sgsize; - bus_addr_t curaddr; + vm_paddr_t curaddr; vm_offset_t kvaddr, vaddr; int error; @@ -1194,7 +1201,7 @@ reserve_bounce_pages(bus_dma_tag_t dmat, bus_dmamap_t static bus_addr_t add_bounce_page(bus_dma_tag_t dmat, bus_dmamap_t map, vm_offset_t vaddr, - bus_addr_t addr1, bus_addr_t addr2, bus_size_t size) + vm_paddr_t addr1, vm_paddr_t addr2, bus_size_t size) { struct bounce_zone *bz; struct bounce_page *bpage; Modified: head/sys/x86/x86/busdma_machdep.c ============================================================================== --- head/sys/x86/x86/busdma_machdep.c Fri Jan 18 13:35:06 2019 (r343145) +++ head/sys/x86/x86/busdma_machdep.c Fri Jan 18 13:38:56 2019 (r343146) @@ -99,14 +99,15 @@ bus_dma_dflt_lock(void *arg, bus_dma_lock_op_t op) * to check for a match, if there is no filter callback then assume a match. */ int -bus_dma_run_filter(struct bus_dma_tag_common *tc, bus_addr_t paddr) +bus_dma_run_filter(struct bus_dma_tag_common *tc, vm_paddr_t paddr) { int retval; retval = 0; do { - if (((paddr > tc->lowaddr && paddr <= tc->highaddr) || - ((paddr & (tc->alignment - 1)) != 0)) && + if ((paddr >= BUS_SPACE_MAXADDR || + (paddr > tc->lowaddr && paddr <= tc->highaddr) || + (paddr & (tc->alignment - 1)) != 0) && (tc->filter == NULL || (*tc->filter)(tc->filterarg, paddr) != 0)) retval = 1;