mmSDMA0_PAGE_RB_WPTR
SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_PAGE_RB_WPTR),
WREG32_SDMA(i, mmSDMA0_PAGE_RB_WPTR, 0);
wptr |= RREG32_SDMA(ring->me, mmSDMA0_PAGE_RB_WPTR);
WREG32_SDMA(ring->me, mmSDMA0_PAGE_RB_WPTR,
SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_PAGE_RB_WPTR),
SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_PAGE_RB_WPTR),