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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-21 21:19:54 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-21 21:19:54 -0700 |
commit | d4429f608abde89e8bc1e24b43cd503feb95c496 (patch) | |
tree | 4c11afa193593a5e3949391bf35022b4f87ba375 /arch/powerpc/kernel/dma-iommu.c | |
parent | Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev (diff) | |
parent | Merge remote branch 'jwb/next' into next (diff) | |
download | linux-dev-d4429f608abde89e8bc1e24b43cd503feb95c496.tar.xz linux-dev-d4429f608abde89e8bc1e24b43cd503feb95c496.zip |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (71 commits)
powerpc/44x: Update ppc44x_defconfig
powerpc/watchdog: Make default timeout for Book-E watchdog a Kconfig option
fsl_rio: Add comments for sRIO registers.
powerpc/fsl-booke: Add e55xx (64-bit) smp defconfig
powerpc/fsl-booke: Add p5020 DS board support
powerpc/fsl-booke64: Use TLB CAMs to cover linear mapping on FSL 64-bit chips
powerpc/fsl-booke: Add support for FSL Arch v1.0 MMU in setup_page_sizes
powerpc/fsl-booke: Add support for FSL 64-bit e5500 core
powerpc/85xx: add cache-sram support
powerpc/85xx: add ngPIXIS FPGA device tree node to the P1022DS board
powerpc: Fix compile error with paca code on ppc64e
powerpc/fsl-booke: Add p3041 DS board support
oprofile/fsl emb: Don't set MSR[PMM] until after clearing the interrupt.
powerpc/fsl-booke: Add PCI device ids for P2040/P3041/P5010/P5020 QoirQ chips
powerpc/mpc8xxx_gpio: Add support for 'qoriq-gpio' controllers
powerpc/fsl_booke: Add support to boot from core other than 0
powerpc/p1022: Add probing for individual DMA channels
powerpc/fsl_soc: Search all global-utilities nodes for rstccr
powerpc: Fix invalid page flags in create TLB CAM path for PTE_64BIT
powerpc/mpc83xx: Support for MPC8308 P1M board
...
Fix up conflict with the generic irq_work changes in arch/powerpc/kernel/time.c
Diffstat (limited to 'arch/powerpc/kernel/dma-iommu.c')
-rw-r--r-- | arch/powerpc/kernel/dma-iommu.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c index 37771a518119..6e54a0fd31aa 100644 --- a/arch/powerpc/kernel/dma-iommu.c +++ b/arch/powerpc/kernel/dma-iommu.c @@ -74,16 +74,17 @@ static int dma_iommu_dma_supported(struct device *dev, u64 mask) { struct iommu_table *tbl = get_iommu_table_base(dev); - if (!tbl || tbl->it_offset > mask) { - printk(KERN_INFO - "Warning: IOMMU offset too big for device mask\n"); - if (tbl) - printk(KERN_INFO - "mask: 0x%08llx, table offset: 0x%08lx\n", - mask, tbl->it_offset); - else - printk(KERN_INFO "mask: 0x%08llx, table unavailable\n", - mask); + if (!tbl) { + dev_info(dev, "Warning: IOMMU dma not supported: mask 0x%08llx" + ", table unavailable\n", mask); + return 0; + } + + if ((tbl->it_offset + tbl->it_size) > (mask >> IOMMU_PAGE_SHIFT)) { + dev_info(dev, "Warning: IOMMU window too big for device mask\n"); + dev_info(dev, "mask: 0x%08llx, table end: 0x%08lx\n", + mask, (tbl->it_offset + tbl->it_size) << + IOMMU_PAGE_SHIFT); return 0; } else return 1; |