On 08/13/2013 02:14 AM, Bhushan Bharat-R65777 wrote: > > >> -----Original Message----- >> From: Alexey Kardashevskiy [mailto:a...@ozlabs.ru] >> Sent: Monday, August 12, 2013 7:44 PM >> To: Bhushan Bharat-R65777 >> Cc: b...@kernel.crashing.org; linuxppc-dev@lists.ozlabs.org >> Subject: Re: Powerpc: Kernel warn_on when enabling IOMMU_API >> >> On 08/12/2013 08:20 PM, Bhushan Bharat-R65777 wrote: >>> And this simple fix work for me >>> diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c >>> index b20ff17..8869b0d 100644 >>> --- a/arch/powerpc/kernel/iommu.c >>> +++ b/arch/powerpc/kernel/iommu.c >>> @@ -48,6 +48,8 @@ >>> #include <asm/vio.h> >>> #include <asm/tce.h> >>> >>> +#define DEBUG >>> + >>> #define DBG(...) >>> >>> static int novmerge; >>> @@ -871,7 +873,7 @@ void iommu_free_coherent(struct iommu_table *tbl, size_t >> size, >>> } >>> } >>> >>> -#ifdef CONFIG_IOMMU_API >>> +#ifdef SPAPR_TCE_IOMMU >>> /* >>> * SPAPR TCE API >>> */ >>> ---------------------- >> >> >> And with this fix, what does "ls -laR /sys/kernel/iommu_groups/" print? > > It shows the list of group id and respective devices: >
Is it vanilla 3.11-rc1 kernel? Wow. What does "lspci" show there? -- Alexey _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
