r500/regs/bits/cp_rb_rptr_addr.txt

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Field Name Bits Default Description
RB_RPTR_SWAP 1:0 0x0 Swap control of the reported read pointer address. See
CP_RB_CNTL.BUF_SWAP for the encoding.
RB_RPTR_ADDR 31:2 0x0 Ring Buffer Read Pointer Address. Address of the Host`s
copy of the Read Pointer. CP_RB_RPTR (RO) Ring
Buffer Read Pointer