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authorLaurentiu Tudor <Laurentiu.Tudor@freescale.com>2012-10-05 09:48:54 +0000
committerAndy Fleming <afleming@freescale.com>2012-10-22 14:31:13 -0500
commit71cfcef6499a9e2a552cbd0403fae497cc017093 (patch)
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powerpc/p5040ds: add per pci endpoint liodn offset list
Add a new device tree property named "fsl,liodn-offset-list" holding a list of per pci endpoint permitted liodn offsets. This property is useful in virtualization scenarios that implement per pci endpoint partitioning. The final liodn of a partitioned pci endpoint is calculated by the hardware, by adding these offsets to pci controller's base liodn, stored in the "fsl,liodn" property of its node. The liodn offsets are interleaved to get better cache utilization. As an example, given 3 pci controllers, the following liodns are generated for the pci endpoints: pci0: 193 256 259 262 265 268 271 274 277 pci1: 194 257 260 263 266 269 272 275 278 pci2: 195 258 261 264 267 270 273 276 279 Signed-off-by: Laurentiu Tudor <Laurentiu.Tudor@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
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