RE: [PATCH] iovmm: IVA2 MMU range is from 0x11000000 to 0xFFFFFFFF
-Original Message- From: Hiroshi DOYU [mailto:hiroshi.d...@nokia.com] Sent: Thursday, October 07, 2010 2:14 PM To: Guzman Lugo, Fernando Cc: felipe.contre...@nokia.com; ameya.pala...@nokia.com; david.co...@nokia.com; linux-ker...@vger.kernel.org; andy.shevche...@gmail.com; linux-omap@vger.kernel.org Subject: Re: [PATCH] iovmm: IVA2 MMU range is from 0x1100 to 0x From: ext Fernando Guzman Lugo x0095...@ti.com Subject: [PATCH] iovmm: IVA2 MMU range is from 0x1100 to 0x Date: Thu, 7 Oct 2010 20:43:41 +0200 IV2 MMU capable addresses start from 0x1100 Wouldn't it be better to add an general API to configure the valid 'da' range in advance? I don't think that it's a good idea to introduce the iommu instance(iva2:iommu) specific code here. Please discard this patch. I will send a one base on comments Along with the other iommu fixes serie. Regards, Fernando. -- To unsubscribe from this list: send the line unsubscribe linux-omap in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH] iovmm: IVA2 MMU range is from 0x11000000 to 0xFFFFFFFF
IV2 MMU capable addresses start from 0x1100 Signed-off-by: Fernando Guzman Lugo x0095...@ti.com --- arch/arm/plat-omap/iovmm.c |7 ++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/arch/arm/plat-omap/iovmm.c b/arch/arm/plat-omap/iovmm.c index 75965a1..c0344f4 100644 --- a/arch/arm/plat-omap/iovmm.c +++ b/arch/arm/plat-omap/iovmm.c @@ -286,7 +286,12 @@ static struct iovm_struct *alloc_iovm_area(struct iommu *obj, u32 da, /* * Reserve the first page for NULL */ - start = PAGE_SIZE; + if (!strcmp(obj-name, iva2)) + /* IVA2 MMU control starts from 0x1100 */ + start = 0x1100; + else + start = PAGE_SIZE; + if (flags IOVMF_LINEAR) alignement = iopgsz_max(bytes); start = roundup(start, alignement); -- 1.6.3.3 -- To unsubscribe from this list: send the line unsubscribe linux-omap in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH] iovmm: IVA2 MMU range is from 0x11000000 to 0xFFFFFFFF
From: ext Fernando Guzman Lugo x0095...@ti.com Subject: [PATCH] iovmm: IVA2 MMU range is from 0x1100 to 0x Date: Thu, 7 Oct 2010 20:43:41 +0200 IV2 MMU capable addresses start from 0x1100 Wouldn't it be better to add an general API to configure the valid 'da' range in advance? I don't think that it's a good idea to introduce the iommu instance(iva2:iommu) specific code here. -- To unsubscribe from this list: send the line unsubscribe linux-omap in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
RE: [PATCH] iovmm: IVA2 MMU range is from 0x11000000 to 0xFFFFFFFF
Hi Hiroshi, -Original Message- From: Hiroshi DOYU [mailto:hiroshi.d...@nokia.com] Sent: Thursday, October 07, 2010 2:14 PM To: Guzman Lugo, Fernando Cc: felipe.contre...@nokia.com; ameya.pala...@nokia.com; david.co...@nokia.com; linux-ker...@vger.kernel.org; andy.shevche...@gmail.com; linux-omap@vger.kernel.org Subject: Re: [PATCH] iovmm: IVA2 MMU range is from 0x1100 to 0x From: ext Fernando Guzman Lugo x0095...@ti.com Subject: [PATCH] iovmm: IVA2 MMU range is from 0x1100 to 0x Date: Thu, 7 Oct 2010 20:43:41 +0200 IV2 MMU capable addresses start from 0x1100 Wouldn't it be better to add an general API to configure the valid 'da' range in advance? Yes I was thinking in passing start and end range in iommu_get (because don't need to change rage, it is needed only one time) And create new elements in iommu struct for start and end address or maybe defining the range statically when the structures are Fillup for omapxxx. But I tought I was break other users of iommu Like omap4 and isp and it would be easier to accept an small patch. But I am agree with you it would be better to make it configurable. As tidspbridge iommu migratio seems to be target to 37 I can Make a new patch and resend. Please let me know if you have some suggestions. Regards, Fernando. I don't think that it's a good idea to introduce the iommu instance(iva2:iommu) specific code here. -- To unsubscribe from this list: send the line unsubscribe linux-omap in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
