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DIR:OUT; SFP:1101; SCL:1; SRVR:AM0PR04MB5186; H:AM0PR04MB4481.eurprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; Received-SPF: none (zoho.com: 192.237.175.120 is neither permitted nor denied by domain of lists.xenproject.org) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: GhFLTZUam2svVQUPfjTqJv8m65Dws5Irh+w2L39xjcuMTVdubiAYjtwT2WQKVVU8D2+kHmSaevnpE3jJc4lPnMoG8i3WKRx2Ow5tOeSRI47Q7qzoKGC1PZb5IsELH+tdaBRO9VKjLK6V9kIlHhZIlv7Hwmd/dJUEidO+ST8vyYQbyZ0ZQjonStJohxsxTDkos8R/yvg5Tl+s+P/Ctsn6vV9W5ydKWHYuT0Fgj6pYRxnumcc9IwGHLtz4VxZqqyeLoZU2KPzIQPzeLPiY5A9FfhUw+OzN5E+uVW71KavCG4WIOnBFhF6wDETw5HjSakweBONA2oAm8EjeCOFqptF4ZypqQqxWtKiGafebOAuR3RYlNcX3755D5BcDc7F/VLMI3fFhPKMAA3BSjXlG7fj7K4GmR5KDJFjUVLhL/OZfI/Q= MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 0dde092f-4dc9-47c8-17f2-08d73a8b7522 X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Sep 2019 09:51:34.0156 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: aZul6er8FMN9aOpYNr+i019whEoXmd9DgIzfC5geVUjcschdPUlhGkHT6jldF2wMNuybY6gTW7DCDBnUsUGWag== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB5186 Subject: [Xen-devel] [PATCH V3] arm: xen: mm: use __GPF_DMA32 for arm64 X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: "xen-devel@lists.xenproject.org" , Peng Fan , dl-linux-imx , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) From: Peng Fan arm64 shares some code under arch/arm/xen, including mm.c. However ZONE_DMA is removed by commit ad67f5a6545("arm64: replace ZONE_DMA with ZONE_DMA32"). So add a check if CONFIG_ZONE_DMA32 is enabled use __GFP_DMA32. Signed-off-by: Peng Fan Acked-by: Stefano Stabellini --- V3: Use IS_ENABLED(CONFIG_ZONE_DMA32) and drop xen_set_gfp_dma. V2: Follow suggestion from Stefano, introduce static inline void xen_set_gfp_dma(gfp_t *flags) for arm32/arm64= , and for arm64 using __GFP_DMA for the former and __GFP_DMA32 for the latter. arch/arm/xen/mm.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c index 2b2c208408bb..38fa917c8585 100644 --- a/arch/arm/xen/mm.c +++ b/arch/arm/xen/mm.c @@ -28,7 +28,10 @@ unsigned long xen_get_swiotlb_free_pages(unsigned int or= der) =20 for_each_memblock(memory, reg) { if (reg->base < (phys_addr_t)0xffffffff) { - flags |=3D __GFP_DMA; + if (IS_ENABLED(CONFIG_ZONE_DMA32)) + flags |=3D __GFP_DMA32; + else + flags |=3D __GFP_DMA; break; } } --=20 2.16.4 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel