| Message ID | 4DA489F0.4000003@kernel.org (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Headers | show |
On Tue, 12 Apr 2011 10:20:48 -0700 Yinghai Lu <yinghai@kernel.org> wrote: > > That is workaround for holding dma32 buf when early bootmem could use up > those range on system that have lots of RAM. > > Now x86 is using memblock, and even nobootmem wrapper do top-down allocation. > > So We could remove those not needed code now. > > -v2: rebase on pci-next > > Signed-off-by: Yinghai Lu <yinghai@kernel.org> > Hm, still didn't apply cleanly, I guess the patch got corrupted. I fixed it up by hand and applied to linux-next though, thanks.
On 04/12/2011 10:47 AM, Jesse Barnes wrote: > On Tue, 12 Apr 2011 10:20:48 -0700 > Yinghai Lu<yinghai@kernel.org> wrote: > >> >> That is workaround for holding dma32 buf when early bootmem could use up >> those range on system that have lots of RAM. >> >> Now x86 is using memblock, and even nobootmem wrapper do top-down allocation. >> >> So We could remove those not needed code now. >> >> -v2: rebase on pci-next >> >> Signed-off-by: Yinghai Lu<yinghai@kernel.org> >> > > Hm, still didn't apply cleanly, I guess the patch got corrupted. I > fixed it up by hand and applied to linux-next though, thanks. sorry for that. looks like recent thunderbird upgrade convert TAB to space.. Thanks Yinghai Lu -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tue, 12 Apr 2011 10:54:14 -0700 Yinghai Lu <yinghai@kernel.org> wrote: > On 04/12/2011 10:47 AM, Jesse Barnes wrote: > > On Tue, 12 Apr 2011 10:20:48 -0700 > > Yinghai Lu<yinghai@kernel.org> wrote: > > > >> > >> That is workaround for holding dma32 buf when early bootmem could use up > >> those range on system that have lots of RAM. > >> > >> Now x86 is using memblock, and even nobootmem wrapper do top-down allocation. > >> > >> So We could remove those not needed code now. > >> > >> -v2: rebase on pci-next > >> > >> Signed-off-by: Yinghai Lu<yinghai@kernel.org> > >> > > > > Hm, still didn't apply cleanly, I guess the patch got corrupted. I > > fixed it up by hand and applied to linux-next though, thanks. > > sorry for that. looks like recent thunderbird upgrade convert TAB to space.. Thanks for checking. I wonder why every mailer (and some MTAs!) feel the need to molest message content so thoroughly...
On Tue, Apr 12, 2011 at 10:58 AM, Jesse Barnes <jbarnes@virtuousgeek.org> wrote: > On Tue, 12 Apr 2011 10:54:14 -0700 > Yinghai Lu <yinghai@kernel.org> wrote: > >> On 04/12/2011 10:47 AM, Jesse Barnes wrote: >> > On Tue, 12 Apr 2011 10:20:48 -0700 >> > Yinghai Lu<yinghai@kernel.org> wrote: >> > >> >> >> >> That is workaround for holding dma32 buf when early bootmem could use up >> >> those range on system that have lots of RAM. >> >> >> >> Now x86 is using memblock, and even nobootmem wrapper do top-down allocation. >> >> >> >> So We could remove those not needed code now. >> >> >> >> -v2: rebase on pci-next >> >> >> >> Signed-off-by: Yinghai Lu<yinghai@kernel.org> >> >> >> > >> > Hm, still didn't apply cleanly, I guess the patch got corrupted. I >> > fixed it up by hand and applied to linux-next though, thanks. >> >> sorry for that. looks like recent thunderbird upgrade convert TAB to space.. > > Thanks for checking. I wonder why every mailer (and some MTAs!) feel > the need to molest message content so thoroughly... > looks like patchwork and LKML have tab instead of spaces. https://patchwork.kernel.org/patch/701342/ https://lkml.org/lkml/2011/4/12/358 also it is very interesting: in thunderbox inbox/send box, some mails are viewed with TAB as spaces. but source does have TAB. Yinghai Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tue, Apr 12, 2011 at 12:25 PM, Yinghai Lu <yinghai@kernel.org> wrote: > On Tue, Apr 12, 2011 at 10:58 AM, Jesse Barnes <jbarnes@virtuousgeek.org> wrote: >> On Tue, 12 Apr 2011 10:54:14 -0700 >> Yinghai Lu <yinghai@kernel.org> wrote: >> >>> On 04/12/2011 10:47 AM, Jesse Barnes wrote: >>> > On Tue, 12 Apr 2011 10:20:48 -0700 >>> > Yinghai Lu<yinghai@kernel.org> wrote: >>> > >>> >> >>> >> That is workaround for holding dma32 buf when early bootmem could use up >>> >> those range on system that have lots of RAM. >>> >> >>> >> Now x86 is using memblock, and even nobootmem wrapper do top-down allocation. >>> >> >>> >> So We could remove those not needed code now. >>> >> >>> >> -v2: rebase on pci-next >>> >> >>> >> Signed-off-by: Yinghai Lu<yinghai@kernel.org> >>> >> >>> > >>> > Hm, still didn't apply cleanly, I guess the patch got corrupted. I >>> > fixed it up by hand and applied to linux-next though, thanks. >>> >>> sorry for that. looks like recent thunderbird upgrade convert TAB to space.. >> >> Thanks for checking. I wonder why every mailer (and some MTAs!) feel >> the need to molest message content so thoroughly... >> > > looks like patchwork and LKML have tab instead of spaces. > > https://patchwork.kernel.org/patch/701342/ > > https://lkml.org/lkml/2011/4/12/358 > > also it is very interesting: in thunderbox inbox/send box, some mails > are viewed with TAB as spaces. > but source does have TAB. > while using thunderbird 3.1.8 to send patch, need to set mailnews.send_plaintext_flowed to false. otherwise viewer could show TAB as spaces. Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Index: linux-2.6/arch/x86/include/asm/pci.h =================================================================== --- linux-2.6.orig/arch/x86/include/asm/pci.h +++ linux-2.6/arch/x86/include/asm/pci.h @@ -135,8 +135,6 @@ void default_teardown_msi_irqs(struct pc #include "pci_64.h" #endif -void dma32_reserve_bootmem(void); - /* implement the pci_ DMA API in terms of the generic device dma_ one */ #include <asm-generic/pci-dma-compat.h> Index: linux-2.6/arch/x86/kernel/pci-dma.c =================================================================== --- linux-2.6.orig/arch/x86/kernel/pci-dma.c +++ linux-2.6/arch/x86/kernel/pci-dma.c @@ -68,74 +68,10 @@ int dma_set_mask(struct device *dev, u64 } EXPORT_SYMBOL(dma_set_mask); -#if defined(CONFIG_X86_64) && !defined(CONFIG_NUMA) -static __initdata void *dma32_bootmem_ptr; -static unsigned long dma32_bootmem_size __initdata = (128ULL<<20); - -static int __init parse_dma32_size_opt(char *p) -{ - if (!p) - return -EINVAL; - dma32_bootmem_size = memparse(p, &p); - return 0; -} -early_param("dma32_size", parse_dma32_size_opt); - -void __init dma32_reserve_bootmem(void) -{ - unsigned long size, align; - if (max_pfn <= MAX_DMA32_PFN) - return; - - /* - * check aperture_64.c allocate_aperture() for reason about - * using 512M as goal - */ - align = 64ULL<<20; - size = roundup(dma32_bootmem_size, align); - dma32_bootmem_ptr = __alloc_bootmem_nopanic(size, align, - 512ULL<<20); - /* - * Kmemleak should not scan this block as it may not be mapped via the - * kernel direct mapping. - */ - kmemleak_ignore(dma32_bootmem_ptr); - if (dma32_bootmem_ptr) - dma32_bootmem_size = size; - else - dma32_bootmem_size = 0; -} -static void __init dma32_free_bootmem(void) -{ - - if (max_pfn <= MAX_DMA32_PFN) - return; - - if (!dma32_bootmem_ptr) - return; - - free_bootmem(__pa(dma32_bootmem_ptr), dma32_bootmem_size); - - dma32_bootmem_ptr = NULL; - dma32_bootmem_size = 0; -} -#else -void __init dma32_reserve_bootmem(void) -{ -} -static void __init dma32_free_bootmem(void) -{ -} - -#endif - void __init pci_iommu_alloc(void) { struct iommu_table_entry *p; - /* free the range so iommu could get some range less than 4G */ - dma32_free_bootmem(); - sort_iommu_table(__iommu_table, __iommu_table_end); check_iommu_entries(__iommu_table, __iommu_table_end); Index: linux-2.6/arch/x86/kernel/setup.c =================================================================== --- linux-2.6.orig/arch/x86/kernel/setup.c +++ linux-2.6/arch/x86/kernel/setup.c @@ -966,7 +966,6 @@ void __init setup_arch(char **cmdline_p) initmem_init(); memblock_find_dma_reserve(); - dma32_reserve_bootmem(); #ifdef CONFIG_KVM_CLOCK kvmclock_init();
That is workaround for holding dma32 buf when early bootmem could use up those range on system that have lots of RAM. Now x86 is using memblock, and even nobootmem wrapper do top-down allocation. So We could remove those not needed code now. -v2: rebase on pci-next Signed-off-by: Yinghai Lu <yinghai@kernel.org> --- arch/x86/include/asm/pci.h | 2 - arch/x86/kernel/pci-dma.c | 64 --------------------------------------------- arch/x86/kernel/setup.c | 1 3 files changed, 67 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html