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Draft: Add s-mode CLIC interrupt testcases
his is a draft version of the s-mode (Ssclic) CLIC interrupt testcases using clint MSW and MTIMER macros. Note: pulls are not yet available for spike or sail that support CLIC but these testcases should help enable their development. This pull requires: riscv-software-src/riscv-config#169, riscv-software-src/riscof#106 riscv-software-src/riscv-isa-sim#1596 To include s-mode CLIC interrupt tests in riscof testlist flow, add Ssclic to riscof yaml file, e.g.: spike/spike_isa.yaml: ISA: RV32IMCZicsr_Zifencei_Ssclic Signed-off-by: Dan Smathers <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,387 @@ | ||
| ==== sclicnodeleg-01.S | ||
| .Description: Verify when executing in s-mode, the m-mode interrupt will be handled even though mstatus.mie is 0: | ||
| - generate m-mode interrupt (msw) | ||
| - switch to s-mode (mstatus.mie disabled), | ||
| - trigger (m-mode handler), | ||
| - clear interrupt, | ||
| - return to s-mode, | ||
| - ecall back to m-mode | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_MSTATUS_MIE = 0 | ||
| RVMODEL_SET_MINT1 = RVMODEL_SET_MSW_INT; | ||
| RVMODEL_CLEAR_MINT1 = RVMODEL_CLEAR_MSW_INT; | ||
| RVMODEL_MINTTHRESH = RVMODEL_MINTTHRESH_MAX | ||
| ---- | ||
| Coverage | ||
| ---- | ||
| clicintattr[msw].mode == 11 | verify interrupt is handled in m-mode | ||
| mstatus.mie=0 | verify m-mode interrupt will occur in s-mode when mstatus.mie=0 | ||
| mcause signature | verify msw cause signature | ||
| ---- | ||
| ==== sclicdeleg-01.S | ||
| .Description: Verify when executing in s-mode, an s-mode interrupt will be handled when mstatus.sie is 1: | ||
| - generate s-mode interrupt (sint1), | ||
| - switch to s-mode, | ||
| - trigger (s-mode handler), | ||
| - clear interrupt, | ||
| - ecall back to m-mode | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_MSTATUS_MIE = MSTATUS_SIE | ||
| RVMODEL_SINT1_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT1 = RVMODEL_SET_MSW_INT | ||
| RVMODEL_CLEAR_SINT1 = RVMODEL_CLEAR_MSW_INT | ||
| RVMODEL_SINT1_EXCCODE = 0x3 | ||
| ---- | ||
| Coverage | ||
| ---- | ||
| clicintattr[sint1].mode == 01 | verify interrupt is handled in s-mode | ||
| mstatus.sie=1 | verify s-mode interrupt will occur in s-mode when mstatus.sie=1 | ||
| scause signature | verify msw signature | ||
| mcause signature | verify ecall signature | ||
| ---- | ||
| ==== sclicorder-01.S | ||
| .Description: Verify order of 2 s-mode interrupts | ||
| - generate 2 s-mode interrupts (msw, mtimer), | ||
| - switch to s-mode, | ||
| - trigger (s-mode handler), | ||
| - clear interrupts, | ||
| - ecall back to m-mode | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_MSTATUS_MIE = MSTATUS_SIE | ||
| RVMODEL_SINT1_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT1 = RVMODEL_SET_MSW_INT | ||
| RVMODEL_CLEAR_SINT1 = RVMODEL_CLEAR_MSW_INT | ||
| RVMODEL_SINT2_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT2 = RVMODEL_SET_MTIMER_INT | ||
| RVMODEL_CLEAR_SINT2 = RVMODEL_CLEAR_MTIMER_INT | ||
| RVMODEL_SINT1_CLICINTCTL = RVMODEL_CLICINTCTL_MAX | ||
| RVMODEL_SINT2_CLICINTCTL = RVMODEL_CLICINTCTL_MIN | ||
| RVMODEL_SINT1_EXCCODE = 0x3 | ||
| RVMODEL_SINT2_EXCCODE = 0x7 | ||
| ---- | ||
| Coverage | ||
| ---- | ||
| scause signature | verify priority of int1/int2 | ||
| ---- | ||
| ==== sclicorder-02.S | ||
| .Description: | ||
| - generate 2 s-mode interrupts (msw, mtimer), | ||
| - switch to s-mode, | ||
| - trigger (s-mode handler), | ||
| - only sint1 is cleared, | ||
| - re-enable mstatus.sie | ||
| - trigger (go to stvec_finish, capture cause signature) | ||
| - ecall back to m-mode | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_MSTATUS_MIE = MSTATUS_SIE | ||
| RVMODEL_SINT1_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT1 = RVMODEL_SET_MSW_INT | ||
| RVMODEL_CLEAR_SINT1 = RVMODEL_CLEAR_MSW_INT | ||
| RVMODEL_SINT2_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT2 = RVMODEL_SET_MTIMER_INT | ||
| RVMODEL_SINT1_CLICINTCTL = RVMODEL_CLICINTCTL_MAX | ||
| RVMODEL_SINT2_CLICINTCTL = RVMODEL_CLICINTCTL_MIN | ||
| RVMODEL_SINT1_EXCCODE = 0x3 | ||
| RVMODEL_SINT2_EXCCODE = 0x7 | ||
| RVMODEL_CLEAR_SSTATUS_SPIE = 0 | ||
| ---- | ||
| Coverage - same as order-01.S except | ||
| ---- | ||
| scause 2nd signature | verify sti occurs after ssi cleared and sret | ||
| ---- | ||
| ==== sclicorder-03.S | ||
| .Description: | ||
| - generate 2 s-mode interrupts (msw, mtimer), | ||
| - switch to s-mode, | ||
| - trigger (s-mode handler), | ||
| - only sint1 is cleared, | ||
| - set sintthresh | ||
| - re-enable mstatus.sie | ||
| - ecall back to m-mode | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_MSTATUS_MIE = MSTATUS_SIE | ||
| RVMODEL_SINT1_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT1 = RVMODEL_SET_MSW_INT | ||
| RVMODEL_CLEAR_SINT1 = RVMODEL_CLEAR_MSW_INT | ||
| RVMODEL_SINT2_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT2 = RVMODEL_SET_MTIMER_INT | ||
| RVMODEL_SINT1_CLICINTCTL = RVMODEL_CLICINTCTL_MAX | ||
| RVMODEL_SINT2_CLICINTCTL = RVMODEL_CLICINTCTL_MIN | ||
| RVMODEL_SINTTHRESH_HNDLR1 = RVMODEL_SINTTHRESH_MAX | ||
| RVMODEL_SINT1_EXCCODE = 0x3 | ||
| RVMODEL_SINT2_EXCCODE = 0x7 | ||
| RVMODEL_CLEAR_SSTATUS_SPIE = 0 | ||
| ---- | ||
| Coverage - same as order-01.S except | ||
| ---- | ||
| scause 2nd signature | verify sti only occurs after ssi cleared and sret if sti level > sintthresh | ||
| ---- | ||
| ==== sclicorder-04.S | ||
| .Description: | ||
| - generate 2 s-mode interrupts (msw, mtimer), | ||
| - switch to s-mode, | ||
| - trigger (s-mode handler), | ||
| - only sint2 is cleared, | ||
| - re-enable mstatus.sie | ||
| - trigger (go to stvec_finish, capture cause signature) | ||
| - ecall back to m-mode | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_MSTATUS_MIE = MSTATUS_SIE | ||
| RVMODEL_SINT1_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT1 = RVMODEL_SET_MSW_INT | ||
| RVMODEL_SINT2_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT2 = RVMODEL_SET_MTIMER_INT | ||
| RVMODEL_CLEAR_SINT2 = RVMODEL_CLEAR_MTIMER_INT | ||
| RVMODEL_SINT1_CLICINTCTL = RVMODEL_CLICINTCTL_MAX | ||
| RVMODEL_SINT2_CLICINTCTL = RVMODEL_CLICINTCTL_MIN | ||
| RVMODEL_SINT1_EXCCODE = 0x3 | ||
| RVMODEL_SINT2_EXCCODE = 0x7 | ||
| RVMODEL_CLEAR_SSTATUS_SPIE = 0 | ||
| ---- | ||
| Coverage - verify uncleared ssi interrupt will retrigger after sret | ||
| ---- | ||
| scause 2nd signature | verify 2nd signature | ||
| ---- | ||
| ==== sclicprivorder-01.S | ||
| .Description: Verify m-mode interrupt is handled before s-mode interrupt | ||
| - generate 1 m-mode interrupt (mtimer) and 1 s-mode interrupt (msw), | ||
| - switch to s-mode, | ||
| - trigger (m-mode handler), | ||
| - clear m-mode interrupt | ||
| - return to s-mode | ||
| - trigger (s-mode handler) | ||
| - clear s-mode interrupt | ||
| - return to s-mode | ||
| - ecall back to m-mode | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_MSTATUS_MIE = MSTATUS_SIE | ||
| RVMODEL_SINT1_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT1 = RVMODEL_SET_MSW_INT | ||
| RVMODEL_CLEAR_SINT1 = RVMODEL_CLEAR_MSW_INT | ||
| RVMODEL_MINT2_CLICINTATTR = RVMODEL_CLICINTATTR_MMODE | ||
| RVMODEL_SET_MINT2 = RVMODEL_SET_MTIMER_INT | ||
| RVMODEL_CLEAR_MINT2 = RVMODEL_CLEAR_MTIMER_INT | ||
| RVMODEL_SINT1_CLICINTCTL = RVMODEL_CLICINTCTL_MAX | ||
| RVMODEL_MINT2_CLICINTCTL = RVMODEL_CLICINTCTL_MIN | ||
| RVMODEL_SINT1_EXCCODE = 0x3 | ||
| RVMODEL_MINT2_EXCCODE = 0x7 | ||
| ---- | ||
| Coverage - same as order-04.S except | ||
| ---- | ||
| mcause 1st signature | verify m-mode int 1st signature | ||
| scause 2nd signature | verify s-mode int 2nd signature | ||
| ---- | ||
| ==== sclicprivorder-02.S | ||
| .Description: Verify m-mode interrupt is handled before s-mode interrupt setting sintthresh to max | ||
| - generate 1 m-mode interrupt (mtimer) and 1 s-mode interrupt (msw), | ||
| - switch to s-mode, | ||
| - trigger (m-mode handler), | ||
| - clear m-mode interrupt | ||
| - return to s-mode | ||
| - trigger (s-mode handler) | ||
| - clear s-mode interrupt | ||
| - return to s-mode | ||
| - ecall back to m-mode | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_MSTATUS_MIE = MSTATUS_SIE | ||
| RVMODEL_SINT1_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT1 = RVMODEL_SET_MSW_INT | ||
| RVMODEL_CLEAR_SINT1 = RVMODEL_CLEAR_MSW_INT | ||
| RVMODEL_MINT2_CLICINTATTR = RVMODEL_CLICINTATTR_MMODE | ||
| RVMODEL_SET_MINT2 = RVMODEL_SET_MTIMER_INT | ||
| RVMODEL_CLEAR_MINT2 = RVMODEL_CLEAR_MTIMER_INT | ||
| RVMODEL_SINT1_CLICINTCTL = RVMODEL_CLICINTCTL_MAX | ||
| RVMODEL_MINT2_CLICINTCTL = RVMODEL_CLICINTCTL_MIN | ||
| RVMODEL_SINTTHRESH_HNDLR1 = RVMODEL_SINTTHRESH_MAX | ||
| RVMODEL_SINT1_EXCCODE = 0x3 | ||
| RVMODEL_MINT2_EXCCODE = 0x7 | ||
| ---- | ||
| Coverage | ||
| ---- | ||
| mcause 1st signature | verify m-mode int 1st signature | ||
| scause 2nd signature | verify s-mode int 2nd signature | ||
| ---- | ||
| ==== sclicprivorder-03.S | ||
| .Description: Verify m-mode interrupt is handled before s-mode interrupt setting mintthresh to max | ||
| - generate 1 m-mode interrupt (mtimer) and 1 s-mode interrupt (msw), | ||
| - switch to s-mode, | ||
| - trigger (m-mode handler), | ||
| - clear m-mode interrupt | ||
| - return to s-mode | ||
| - trigger (s-mode handler) | ||
| - clear s-mode interrupt | ||
| - return to s-mode | ||
| - ecall back to m-mode | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_MSTATUS_MIE = MSTATUS_SIE | ||
| RVMODEL_SINT1_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT1 = RVMODEL_SET_MSW_INT | ||
| RVMODEL_CLEAR_SINT1 = RVMODEL_CLEAR_MSW_INT | ||
| RVMODEL_MINT2_CLICINTATTR = RVMODEL_CLICINTATTR_MMODE | ||
| RVMODEL_SET_MINT2 = RVMODEL_SET_MTIMER_INT | ||
| RVMODEL_CLEAR_MINT2 = RVMODEL_CLEAR_MTIMER_INT | ||
| RVMODEL_SINT1_CLICINTCTL = RVMODEL_CLICINTCTL_MAX | ||
| RVMODEL_MINT2_CLICINTCTL = RVMODEL_CLICINTCTL_MIN | ||
| RVMODEL_MINTTHRESH_HNDLR1 = RVMODEL_MINTTHRESH_MAX | ||
| RVMODEL_SINT1_EXCCODE = 0x3 | ||
| RVMODEL_MINT2_EXCCODE = 0x7 | ||
| ---- | ||
| Coverage | ||
| ---- | ||
| mcause 1st signature | verify m-mode int 1st signature | ||
| scause 2nd signature | verify s-mode int 2nd signature | ||
| ---- | ||
| ==== sclicmdisable-01.S | ||
| .Description: Verify m-mode interrupt not taken in m-mode when mstatus.mie is 0 | ||
| - generate m-mode interrupt (msw) | ||
| - stay in m-mode | ||
| - wfi | ||
| - wakeup | ||
| - jump to done | ||
| - ecall | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_SWITCH_TO_S_MODE = <EMPTY> | ||
| RVMODEL_MSTATUS_MIE = 0 | ||
| RVMODEL_MINT1_CLICINTATTR = RVMODEL_CLICINTATTR_MMODE | ||
| RVMODEL_SET_MINT1 = RVMODEL_SET_MSW_INT | ||
| RVMODEL_CLEAR_MINT1 = RVMODEL_CLEAR_MSW_INT | ||
| RVMODEL_MINT1_EXCCODE = 0x3 | ||
| ---- | ||
| Coverage | ||
| ---- | ||
| mstatus.mie | verify no m-mode interrupt taken when in m-mode and clicintie is 0 | ||
| ---- | ||
| ==== sclicmdisable-02.S | ||
| .Description: Verify m-mode interrupt not taken in m-mode when clicintie is 0 | ||
| - generate m-mode interrupt (msw) | ||
| - stay in m-mode | ||
| - nop | ||
| - wakeup | ||
| - jump to done | ||
| - ecall | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_WFI = nop | ||
| RVMODEL_SWITCH_TO_S_MODE = <EMPTY> | ||
| RVMODEL_MSTATUS_MIE = MSTATUS_MIE | ||
| RVMODEL_MINT1_CLICINTIE = 0x0 | ||
| RVMODEL_MINT1_CLICINTATTR = RVMODEL_CLICINTATTR_MMODE | ||
| RVMODEL_SET_MINT1 = RVMODEL_SET_MSW_INT | ||
| RVMODEL_CLEAR_MINT1 = RVMODEL_CLEAR_MSW_INT | ||
| RVMODEL_MINT1_EXCCODE = 0x3 | ||
| ---- | ||
| Coverage | ||
| ---- | ||
| clicintie=0 | verify m-mode interrupt not taken when in m-mode and clicintie is 0 | ||
| ---- | ||
| ==== sclicmdisable-03.S | ||
| .Description: Verify s-mode interrupt not taken in m-mode | ||
| - generate s-mode interrupt (msw) | ||
| - stay in m-mode | ||
| - wfi | ||
| - wakeup | ||
| - jump to done | ||
| - ecall | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_SWITCH_TO_S_MODE = <EMPTY> | ||
| RVMODEL_SINT1_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT1 = RVMODEL_SET_MSW_INT | ||
| RVMODEL_CLEAR_SINT1 = RVMODEL_CLEAR_MSW_INT | ||
| RVMODEL_SINT1_EXCCODE = 0x3 | ||
| ---- | ||
| Coverage | ||
| ---- | ||
| mstatus.sie=1 | verify s-mode interrupt not taken when in m-mode | ||
| ---- | ||
| ==== sclicsdisable-01.S | ||
| .Description: Verify s-mode interrupt not taken in s-mode when mstatus.sie is 0 | ||
| - generate s-mode interrupt (msw) | ||
| - switch to s-mode, | ||
| - wfi | ||
| - wakeup | ||
| - jump to done | ||
| - ecall back to m-mode | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_MSTATUS_SIE = 0 | ||
| RVMODEL_SINT1_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT1 = RVMODEL_SET_MSW_INT | ||
| RVMODEL_CLEAR_SINT1 = RVMODEL_CLEAR_MSW_INT | ||
| RVMODEL_SINT1_EXCCODE = 0x3 | ||
| ---- | ||
| Coverage | ||
| ---- | ||
| mstatus.mie=1, mstatus.sie=0 | verify s-mode interrupt not taken when in s-mode when mstatus.sie is 0 | ||
| ---- | ||
| ==== sclicsdisable-02.S | ||
| .Description: Verify s-mode interrupt not taken in s-mode when clcintie is 0 | ||
| - generate s-mode interrupt (msw) | ||
| - switch to s-mode, | ||
| - nop | ||
| - jump to done | ||
| - ecall back to m-mode | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_WFI = nop | ||
| RVMODEL_MSTATUS_MIE = MSTATUS_SIE | ||
| RVMODEL_SINT1_CLICINTIE = 0x0 | ||
| RVMODEL_SINT1_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT1 = RVMODEL_SET_MSW_INT | ||
| RVMODEL_CLEAR_SINT1 = RVMODEL_CLEAR_MSW_INT | ||
| RVMODEL_SINT1_EXCCODE = 0x3 | ||
| ---- | ||
| Coverage | ||
| ---- | ||
| sie=0 | verify s-mode interrupt not taken when in s-mode when clicintie=0 | ||
| ---- | ||
| ==== sclicsdisable-03.S | ||
| .Description: Verify s-mode interrupt not taken in m-mode when mstatus.sie is 1 (but wfi acts as nop) | ||
| - generate s-mode interrupt (msw) | ||
| - wfi | ||
| - wakeup | ||
| - jump to done | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_SWITCH_TO_S_MODE = <EMPTY> | ||
| RVMODEL_MSTATUS_MIE = MSTATUS_SIE | ||
| RVMODEL_SINT1_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SET_SINT1 = RVMODEL_SET_MSW_INT | ||
| RVMODEL_CLEAR_SINT1 = RVMODEL_CLEAR_MSW_INT | ||
| RVMODEL_SINT1_EXCCODE = 0x3 | ||
| ---- | ||
| Coverage | ||
| ---- | ||
| mstatus.sie=1, mstatus.sie=1 | verify s-mode interrupt not taken when in m-mode when mstatus.sie is 1 | ||
| ---- | ||
| ==== sclicwfi-01.S | ||
| .Description: expect wfi to behave like a nop when a single interrupt is pending when mstatus.mie is disabled | ||
| - enable clicintie (default) | ||
| - generate s-mode interrupt (msw) | ||
| - wfi | ||
| - wakeup | ||
| - jump to finish | ||
| [%autofit] | ||
| ---- | ||
| RVMODEL_MSTATUS_MIE = 0 | ||
| RVMODEL_SET_SINT1 = RVMODEL_SET_MSW_INT | ||
| RVMODEL_CLEAR_INT1 = RVMODEL_CLEAR_MSW_INT | ||
| RVMODEL_SINT1_CLICINTATTR = RVMODEL_CLICINTATTR_SMODE | ||
| RVMODEL_SINT1_EXCCODE = 0x3 | ||
| ---- | ||
| Coverage | ||
| ---- | ||
| mstatus.mie | verify no interrupt occurs in m-mode if mstatus.mie is 0 | ||
| wfi | verify wakeup/nop occurs with mstatus.mie = 0 | ||
| wfi | verify wakeup/nop occurs with pending interrupt | ||
| ---- |