diff options
Diffstat (limited to 'hw/intc/xive2.c')
| -rw-r--r-- | hw/intc/xive2.c | 45 |
1 files changed, 31 insertions, 14 deletions
diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c index ee5fa26..fbb3b79 100644 --- a/hw/intc/xive2.c +++ b/hw/intc/xive2.c @@ -95,6 +95,35 @@ static void xive2_nvgc_set_backlog(Xive2Nvgc *nvgc, uint8_t priority, } } +static uint32_t xive2_nvgc_get_idx(uint32_t nvp_idx, uint8_t group) +{ + uint32_t nvgc_idx; + + if (group > 0) { + nvgc_idx = (nvp_idx & (0xffffffffULL << group)) | + ((1 << (group - 1)) - 1); + } else { + nvgc_idx = nvp_idx; + } + + return nvgc_idx; +} + +static uint8_t xive2_nvgc_get_blk(uint8_t nvp_blk, uint8_t crowd) +{ + uint8_t nvgc_blk; + + if (crowd > 0) { + crowd = (crowd == 3) ? 4 : crowd; + nvgc_blk = (nvp_blk & (0xffffffffULL << crowd)) | + ((1 << (crowd - 1)) - 1); + } else { + nvgc_blk = nvp_blk; + } + + return nvgc_blk; +} + uint64_t xive2_presenter_nvgc_backlog_op(XivePresenter *xptr, bool crowd, uint8_t blk, uint32_t idx, @@ -638,20 +667,8 @@ static void xive2_redistribute(Xive2Router *xrtr, XiveTCTX *tctx, uint8_t ring) trace_xive_redistribute(tctx->cs->cpu_index, ring, nvp_blk, nvp_idx); /* convert crowd/group to blk/idx */ - if (group > 0) { - nvgc_idx = (nvp_idx & (0xffffffff << group)) | - ((1 << (group - 1)) - 1); - } else { - nvgc_idx = nvp_idx; - } - - if (crowd > 0) { - crowd = (crowd == 3) ? 4 : crowd; - nvgc_blk = (nvp_blk & (0xffffffff << crowd)) | - ((1 << (crowd - 1)) - 1); - } else { - nvgc_blk = nvp_blk; - } + nvgc_idx = xive2_nvgc_get_idx(nvp_idx, group); + nvgc_blk = xive2_nvgc_get_blk(nvp_blk, crowd); /* Use blk/idx to retrieve the NVGC */ if (xive2_router_get_nvgc(xrtr, crowd, nvgc_blk, nvgc_idx, &nvgc)) { |