Padding for multi-channel memory

摘要

Techniques described in the disclosure are generally related to reserving padding bytes in system memory when storing data in the system memory. The reserving of padding bytes may allow a memory interface to efficiently utilize the channels to the system memory when storing or subsequently retrieving the data.

主权项

1. A method comprising:
receiving, with a memory interface, a plurality of instructions that instruct the memory interface to store pixel values of a surface in a system memory; and storing, with the memory interface, the pixel values of the surface, in bits of the system memory other than reserved padding bits in the system memory, in an interleaving manner based on an interleave granularity between at least a first memory unit of the system memory via a first memory controller, and a second, different memory unit of the system memory via a second, different memory controller causing a first set of pixel values of a display tile to be stored within the first memory unit via the first memory controller, and a second set of pixel values of the same display tile to be stored within the second memory unit via the second memory controller, wherein the interleave granularity indicates a number of bits that the memory interface stores in the first memory unit via the first memory controller before storing bits in the second memory unit via the second memory controller, and wherein storing the pixel values of the surface comprises counting the reserved padding bits as part of the number of bits that are stored in the first memory unit before storing bits in the second memory unit.