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| author | Peter Maydell <peter.maydell@linaro.org> | 2022-04-08 15:15:26 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2022-04-22 14:44:52 +0100 |
| commit | f76ba95a03921b71c2a2f2069e1ddf890796f1e5 (patch) | |
| tree | 092bf0f19abee13174a91372205224569cbe9079 | |
| parent | 3851af45858a03391c74361bc69bf7a31ad30fbd (diff) | |
| download | qemu-f76ba95a03921b71c2a2f2069e1ddf890796f1e5.zip qemu-f76ba95a03921b71c2a2f2069e1ddf890796f1e5.tar.gz qemu-f76ba95a03921b71c2a2f2069e1ddf890796f1e5.tar.bz2 | |
hw/intc/arm_gicv3_its: Implement VSYNC
The VSYNC command forces the ITS to synchronize all outstanding ITS
operations for the specified vPEID, so that subsequent writes to
GITS_TRANSLATER honour them. The QEMU implementation is always in
sync, so for us this is a nop, like the existing SYNC command.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220408141550.1271295-18-peter.maydell@linaro.org
| -rw-r--r-- | hw/intc/arm_gicv3_its.c | 11 | ||||
| -rw-r--r-- | hw/intc/gicv3_internal.h | 1 | ||||
| -rw-r--r-- | hw/intc/trace-events | 1 |
3 files changed, 13 insertions, 0 deletions
diff --git a/hw/intc/arm_gicv3_its.c b/hw/intc/arm_gicv3_its.c index 8bc9329..a3f5bac 100644 --- a/hw/intc/arm_gicv3_its.c +++ b/hw/intc/arm_gicv3_its.c @@ -1165,6 +1165,17 @@ static void process_cmdq(GICv3ITSState *s) */ trace_gicv3_its_cmd_sync(); break; + case GITS_CMD_VSYNC: + /* + * VSYNC also is a nop, because our implementation is always + * in sync. + */ + if (!its_feature_virtual(s)) { + result = CMD_CONTINUE; + break; + } + trace_gicv3_its_cmd_vsync(); + break; case GITS_CMD_MAPD: result = process_mapd(s, cmdpkt); break; diff --git a/hw/intc/gicv3_internal.h b/hw/intc/gicv3_internal.h index 79c45d0..631c79c 100644 --- a/hw/intc/gicv3_internal.h +++ b/hw/intc/gicv3_internal.h @@ -330,6 +330,7 @@ FIELD(GITS_TYPER, CIL, 36, 1) #define GITS_CMD_MOVALL 0x0E #define GITS_CMD_DISCARD 0x0F #define GITS_CMD_VMOVP 0x22 +#define GITS_CMD_VSYNC 0x25 #define GITS_CMD_VMAPP 0x29 #define GITS_CMD_VMAPTI 0x2A #define GITS_CMD_VMAPI 0x2B diff --git a/hw/intc/trace-events b/hw/intc/trace-events index a2dd1bd..b9efe14 100644 --- a/hw/intc/trace-events +++ b/hw/intc/trace-events @@ -191,6 +191,7 @@ gicv3_its_cmd_vmapi(uint32_t devid, uint32_t eventid, uint32_t vpeid, uint32_t d gicv3_its_cmd_vmapti(uint32_t devid, uint32_t eventid, uint32_t vpeid, uint32_t vintid, uint32_t doorbell) "GICv3 ITS: command VMAPI DeviceID 0x%x EventID 0x%x vPEID 0x%x vINTID 0x%x Dbell_pINTID 0x%x" gicv3_its_cmd_vmapp(uint32_t vpeid, uint64_t rdbase, int valid, uint64_t vptaddr, uint32_t vptsize) "GICv3 ITS: command VMAPP vPEID 0x%x RDbase 0x%" PRIx64 " V %d VPT_addr 0x%" PRIx64 " VPT_size 0x%x" gicv3_its_cmd_vmovp(uint32_t vpeid, uint64_t rdbase) "GICv3 ITS: command VMOVP vPEID 0x%x RDbase 0x%" PRIx64 +gicv3_its_cmd_vsync(void) "GICv3 ITS: command VSYNC" gicv3_its_cmd_unknown(unsigned cmd) "GICv3 ITS: unknown command 0x%x" gicv3_its_cte_read(uint32_t icid, int valid, uint32_t rdbase) "GICv3 ITS: Collection Table read for ICID 0x%x: valid %d RDBase 0x%x" gicv3_its_cte_write(uint32_t icid, int valid, uint32_t rdbase) "GICv3 ITS: Collection Table write for ICID 0x%x: valid %d RDBase 0x%x" |