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Merge pull request #855 from jordancarlin/derivgen_fix

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FPU without privilege modes + derived config fixes
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David Harris 2024-06-27 07:06:33 -07:00 committed by GitHub
commit 4d87de2600
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6 changed files with 74 additions and 5 deletions
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12
bin/regression-wally
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@ -93,7 +93,7 @@ derivconfigtests = [
["nodcache_rv64gc", ["ahb64"]],
["nocache_rv64gc", ["ahb64"]],
# Atomic variatnts
# Atomic variants
["zaamo_rv64gc", ["arch64i", "arch64a_amo"]],
["zalrsc_rv64gc", ["arch64i", "wally64a_lrsc"]],
["zaamo_rv32gc", ["arch32i", "arch32a_amo"]],
@ -122,6 +122,16 @@ derivconfigtests = [
["zknd_rv64gc", ["arch64i", "arch64zknd"]],
["zknh_rv64gc", ["arch64i", "arch64zknh"]],
# No privilege modes variants
["noS_rv32gc", ["arch32i", "arch32f", "arch32priv", "arch32c", "arch32m", "arch32a_amo", "arch32zifencei", "arch32zicond",
"arch32zba", "arch32zfaf", "arch32zfad", "wally32a_lrsc", "arch32zcb", "arch32zbkx", "arch32zknd"]],
["noS_rv64gc", ["arch64i", "arch64f", "arch64priv", "arch64c", "arch64m", "arch64a_amo", "arch64zifencei", "arch64zicond",
"arch64zba", "arch64zfaf", "arch64zfad", "wally64a_lrsc", "arch64zcb", "arch64zbkx", "arch64zknd"]],
["noU_rv32gc", ["arch32i", "arch32f", "arch32priv", "arch32c", "arch32m", "arch32a_amo", "arch32zifencei", "arch32zicond",
"arch32zba", "arch32zfaf", "arch32zfad", "wally32a_lrsc", "arch32zcb", "arch32zbkx", "arch32zknd"]],
["noU_rv64gc", ["arch64i", "arch64f", "arch64priv", "arch64c", "arch64m", "arch64a_amo", "arch64zifencei", "arch64zicond",
"arch64zba", "arch64zfaf", "arch64zfad", "wally64a_lrsc", "arch64zcb", "arch64zbkx", "arch64zknd"]],
### add misaligned tests
# fp/int divider permutations

57
config/derivlist.txt
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@ -106,6 +106,7 @@ F_SUPPORTED 0
ZCF_SUPPORTED 0
D_SUPPORTED 0
ZCD_SUPPORTED 0
deriv syn_sram_rv64gc_noFPU syn_sram_rv64gc_noPriv
F_SUPPORTED 0
ZCF_SUPPORTED 0
@ -395,22 +396,24 @@ VIRTMEM_SUPPORTED 0
deriv nodcache_rv32gc rv32gc
DCACHE_SUPPORTED 0
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZALRSC_SUPPORTED 0
ZAAMO_SUPPORTED 0
ZICBOM_SUPPORTED 0
ZICBOZ_SUPPORTED 0
VIRTMEM_SUPPORTED 0
VIRTMEM_SUPPORTED 0
# nocache_rv32gc must also disable several features incompatible with no cache
deriv nocache_rv32gc rv32gc
ICACHE_SUPPORTED 0
DCACHE_SUPPORTED 0
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZALRSC_SUPPORTED 0
ZAAMO_SUPPORTED 0
ZICBOM_SUPPORTED 0
ZICBOZ_SUPPORTED 0
VIRTMEM_SUPPORTED 0
VIRTMEM_SUPPORTED 0
deriv noicache_rv64gc rv64gc
ICACHE_SUPPORTED 0
@ -783,14 +786,38 @@ ZKND_SUPPORTED 0
ZKNE_SUPPORTED 0
ZKNH_SUPPORTED 1
deriv noS_rv32gc rv32gc
S_SUPPORTED 0
SSTC_SUPPORTED 0
VIRTMEM_SUPPORTED 0
SVINVAL_SUPPORTED 0
SVADU_SUPPORTED 0
deriv noS_rv64gc rv64gc
S_SUPPORTED 0
SSTC_SUPPORTED 0
VIRTMEM_SUPPORTED 0
SVPBMT_SUPPORTED 0
SVNAPOT_SUPPORTED 0
SVINVAL_SUPPORTED 0
SVADU_SUPPORTED 0
deriv noU_rv32gc noS_rv32gc
U_SUPPORTED 0
deriv noU_rv64gc noS_rv64gc
U_SUPPORTED 0
# Floating-point modes supported
deriv f_rv32gc rv32gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 0
deriv fh_rv32gc rv32gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 1
deriv fd_rv32gc rv32gc
@ -809,10 +836,12 @@ ZFH_SUPPORTED 1
deriv f_rv64gc rv64gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 0
deriv fh_rv64gc rv64gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 1
deriv fd_rv64gc rv64gc
@ -872,100 +901,124 @@ IEEE754 1
#### F_only, RK variable
deriv f_div_2_1_rv32gc div_2_1_rv32gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 0
deriv f_div_2_2_rv32gc div_2_2_rv32gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 0
deriv f_div_2_4_rv32gc div_2_4_rv32gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 0
deriv f_div_4_1_rv32gc div_4_1_rv32gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 0
deriv f_div_4_2_rv32gc div_4_2_rv32gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 0
deriv f_div_4_4_rv32gc div_4_4_rv32gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 0
deriv f_div_2_1_rv64gc div_2_1_rv64gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 0
deriv f_div_2_2_rv64gc div_2_2_rv64gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 0
deriv f_div_2_4_rv64gc div_2_4_rv64gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 0
deriv f_div_4_1_rv64gc div_4_1_rv64gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 0
deriv f_div_4_2_rv64gc div_4_2_rv64gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 0
deriv f_div_4_4_rv64gc div_4_4_rv64gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 0
#### FH_only, RK variable
deriv fh_div_2_1_rv32gc div_2_1_rv32gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 1
deriv fh_div_2_2_rv32gc div_2_2_rv32gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 1
deriv fh_div_2_4_rv32gc div_2_4_rv32gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 1
deriv fh_div_4_1_rv32gc div_4_1_rv32gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 1
deriv fh_div_4_2_rv32gc div_4_2_rv32gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 1
deriv fh_div_4_4_rv32gc div_4_4_rv32gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 1
deriv fh_div_2_1_rv64gc div_2_1_rv64gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 1
deriv fh_div_2_2_rv64gc div_2_2_rv64gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 1
deriv fh_div_2_4_rv64gc div_2_4_rv64gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 1
deriv fh_div_4_1_rv64gc div_4_1_rv64gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 1
deriv fh_div_4_2_rv64gc div_4_2_rv64gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 1
deriv fh_div_4_4_rv64gc div_4_4_rv64gc
D_SUPPORTED 0
ZCD_SUPPORTED 0
ZFH_SUPPORTED 1
# FD only , rk variable

4
src/privileged/csr.sv
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@ -259,10 +259,12 @@ module csr import cvw::*; #(parameter cvw_t P) (
assign SCOUNTEREN_REGW = '0;
assign SATP_REGW = '0;
assign IllegalCSRSAccessM = 1'b1;
assign STimerInt = '0;
assign SENVCFG_REGW = '0;
end
// Floating Point CSRs in User Mode only needed if Floating Point is supported
if (P.F_SUPPORTED | P.D_SUPPORTED) begin:csru
if (P.F_SUPPORTED) begin:csru
csru #(P) csru(.clk, .reset, .InstrValidNotFlushedM,
.CSRUWriteM, .CSRAdrM, .CSRWriteValM, .STATUS_FS, .CSRUReadValM,
.SetFflagsM, .FRM_REGW, .WriteFRMM, .WriteFFLAGSM,

1
src/privileged/csri.sv
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@ -73,6 +73,7 @@ module csri import cvw::*; #(parameter cvw_t P) (
assign MIP_WRITE_MASK = 12'h000;
assign SIP_WRITE_MASK = 12'h000;
assign MIE_WRITE_MASK = 12'h888;
assign STIP = '0;
end
always_ff @(posedge clk)
if (reset) MIP_REGW_writeable <= 12'b0;

3
src/privileged/csrm.sv
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@ -195,6 +195,9 @@ module csrm import cvw::*; #(parameter cvw_t P) (
flopenr #(P.XLEN) MENVCFGHreg(clk, reset, WriteMENVCFGHM, MENVCFG_WriteValM[63:32], MENVCFG_REGW[63:32]);
assign MENVCFGH_REGW = MENVCFG_REGW[63:32];
end
end else begin
assign MENVCFG_REGW = '0;
assign MENVCFGH_REGW = '0;
end
// Read machine mode CSRs

2
src/privileged/csrsr.sv
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@ -99,7 +99,7 @@ module csrsr import cvw::*; #(parameter cvw_t P) (
assign STATUS_UXL = P.U_SUPPORTED ? 2'b10 : 2'b00; // 10 if user mode supported
assign STATUS_SUM = P.S_SUPPORTED & P.VIRTMEM_SUPPORTED & STATUS_SUM_INT; // override reigster with 0 if supervisor mode not supported
assign STATUS_MPRV = P.U_SUPPORTED & STATUS_MPRV_INT; // override with 0 if user mode not supported
assign STATUS_FS = (P.S_SUPPORTED & (P.F_SUPPORTED | P.D_SUPPORTED)) ? STATUS_FS_INT : 2'b00; // off if no FP
assign STATUS_FS = P.F_SUPPORTED ? STATUS_FS_INT : 2'b00; // off if no FP
assign STATUS_SD = (STATUS_FS == 2'b11) | (STATUS_XS == 2'b11); // dirty state logic
assign STATUS_XS = 2'b00; // No additional user-mode state to be dirty