ACPI/IORT: Add IORT named component memory address limits

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IORT named components provide firmware configuration describing
how many address bits a given device is capable of generating
to address memory.

Add code to the kernel to retrieve memory address limits
configuration for IORT named components and configure DMA masks
accordingly.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Tested-by: Nate Watterson <nwatters@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Lorenzo Pieralisi 2017-08-03 13:32:39 +01:00 • committed by Rafael J. Wysocki

parent 7ad4263980

commit 10d8ab2c15

1 changed files with 37 additions and 17 deletions

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54

drivers/acpi/arm64/iort.c

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