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| author | Frederic Barrat <fbarrat@linux.ibm.com> | 2025-03-11 11:53:52 +1000 |
|---|---|---|
| committer | Nicholas Piggin <npiggin@gmail.com> | 2025-03-11 22:43:31 +1000 |
| commit | 1a3cc1209b4ca541e3b8f4fd360704e071e1e7bc (patch) | |
| tree | 28e1ccab708ebfa9bf5fd475f3e96fa1e131ff11 /hw/intc/pnv_xive2.c | |
| parent | 96a2132ce95dab3e61002412839a118aecca0be0 (diff) | |
| download | focaccia-qemu-1a3cc1209b4ca541e3b8f4fd360704e071e1e7bc.tar.gz focaccia-qemu-1a3cc1209b4ca541e3b8f4fd360704e071e1e7bc.zip | |
ppc/xive2: Support crowd-matching when looking for target
XIVE crowd sizes are encoded into a 2-bit field as follows: 0: 0b00 2: 0b01 4: 0b10 16: 0b11 A crowd size of 8 is not supported. If an END is defined with the 'crowd' bit set, then a target can be running on different blocks. It means that some bits from the block VP are masked when looking for a match. It is similar to groups, but on the block instead of the VP index. Most of the changes are due to passing the extra argument 'crowd' all the way to the function checking for matches. Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com> Signed-off-by: Glenn Miles <milesg@linux.vnet.ibm.com> Signed-off-by: Michael Kowal <kowal@linux.ibm.com> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Diffstat (limited to 'hw/intc/pnv_xive2.c')
| -rw-r--r-- | hw/intc/pnv_xive2.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/hw/intc/pnv_xive2.c b/hw/intc/pnv_xive2.c index c55d596e48..0b81dad6ba 100644 --- a/hw/intc/pnv_xive2.c +++ b/hw/intc/pnv_xive2.c @@ -624,7 +624,7 @@ static bool pnv_xive2_is_cpu_enabled(PnvXive2 *xive, PowerPCCPU *cpu) static int pnv_xive2_match_nvt(XivePresenter *xptr, uint8_t format, uint8_t nvt_blk, uint32_t nvt_idx, - bool cam_ignore, uint8_t priority, + bool crowd, bool cam_ignore, uint8_t priority, uint32_t logic_serv, XiveTCTXMatch *match) { PnvXive2 *xive = PNV_XIVE2(xptr); @@ -655,8 +655,8 @@ static int pnv_xive2_match_nvt(XivePresenter *xptr, uint8_t format, logic_serv); } else { ring = xive2_presenter_tctx_match(xptr, tctx, format, nvt_blk, - nvt_idx, cam_ignore, - logic_serv); + nvt_idx, crowd, cam_ignore, + logic_serv); } if (ring != -1) { @@ -707,7 +707,7 @@ static uint32_t pnv_xive2_presenter_get_config(XivePresenter *xptr) static int pnv_xive2_broadcast(XivePresenter *xptr, uint8_t nvt_blk, uint32_t nvt_idx, - uint8_t priority) + bool crowd, bool ignore, uint8_t priority) { PnvXive2 *xive = PNV_XIVE2(xptr); PnvChip *chip = xive->chip; @@ -732,10 +732,10 @@ static int pnv_xive2_broadcast(XivePresenter *xptr, if (gen1_tima_os) { ring = xive_presenter_tctx_match(xptr, tctx, 0, nvt_blk, - nvt_idx, true, 0); + nvt_idx, ignore, 0); } else { ring = xive2_presenter_tctx_match(xptr, tctx, 0, nvt_blk, - nvt_idx, true, 0); + nvt_idx, crowd, ignore, 0); } if (ring != -1) { |