diff options
author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-11 14:39:00 (GMT) |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-12 07:36:53 (GMT) |
commit | be20902ba67de70b38c995903321f4152dee57b7 (patch) | |
tree | 86f27d4d90b7408d421ce246527431e58a836bf3 /arch/arm/mach-pxa/cm-x2xx-pci.c | |
parent | 2fb3ec5c9503ba8874e24170de2b40e8f1a58370 (diff) | |
download | linux-be20902ba67de70b38c995903321f4152dee57b7.tar.xz |
ARM: use ARM_DMA_ZONE_SIZE to adjust the zone sizes
Rather than each platform providing its own function to adjust the
zone sizes, use the new ARM_DMA_ZONE_SIZE definition to perform this
adjustment. This ensures that the actual DMA zone size and the
ISA_DMA_THRESHOLD/MAX_DMA_ADDRESS definitions are consistent with
each other, and moves this complexity out of the platform code.
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-pxa/cm-x2xx-pci.c')
-rw-r--r-- | arch/arm/mach-pxa/cm-x2xx-pci.c | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/arch/arm/mach-pxa/cm-x2xx-pci.c b/arch/arm/mach-pxa/cm-x2xx-pci.c index 8b1a309..1afc0fb 100644 --- a/arch/arm/mach-pxa/cm-x2xx-pci.c +++ b/arch/arm/mach-pxa/cm-x2xx-pci.c @@ -29,33 +29,6 @@ unsigned long it8152_base_address; static int cmx2xx_it8152_irq_gpio; -/* - * Only first 64MB of memory can be accessed via PCI. - * We use GFP_DMA to allocate safe buffers to do map/unmap. - * This is really ugly and we need a better way of specifying - * DMA-capable regions of memory. - */ -void __init cmx2xx_pci_adjust_zones(unsigned long *zone_size, - unsigned long *zhole_size) -{ - unsigned int sz = SZ_64M >> PAGE_SHIFT; - - if (machine_is_armcore()) { - pr_info("Adjusting zones for CM-X2XX\n"); - - /* - * Only adjust if > 64M on current system - */ - if (zone_size[0] <= sz) - return; - - zone_size[1] = zone_size[0] - sz; - zone_size[0] = sz; - zhole_size[1] = zhole_size[0]; - zhole_size[0] = 0; - } -} - static void cmx2xx_it8152_irq_demux(unsigned int irq, struct irq_desc *desc) { /* clear our parent irq */ |