Hardware
/
litex
mirror of https://github.com/enjoy-digital/litex.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #1800 from Dolu1990/nax-smp 

core/NaxRiscv add a coherent L2 cache
This commit is contained in:
Dolu1990 2023-10-12 14:35:41 +02:00 committed by GitHub
parent e426e78e31 0c77eb242d
commit 16fcfb9d7e
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 14 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
litex/soc/cores/cpu/naxriscv/core.py
View File

@ -55,6 +55,8 @@ class NaxRiscv(CPU):
jtag_instruction = False
with_dma = False
litedram_width = 32
l2_bytes = 128*1024
l2_ways = 8
# ABI.
@staticmethod
@ -113,6 +115,8 @@ class NaxRiscv(CPU):
cpu_group.add_argument("--update-repo", default="recommended", choices=["latest","wipe+latest","recommended","wipe+recommended","no"], help="Specify how the NaxRiscv & SpinalHDL repo should be updated (latest: update to HEAD, recommended: Update to known compatible version, no: Don't update, wipe+*: Do clean&reset before checkout)")
cpu_group.add_argument("--no-netlist-cache", action="store_true", help="Always (re-)build the netlist")
cpu_group.add_argument("--with-fpu", action="store_true", help="Enable the F32/F64 FPU")
cpu_group.add_argument("--l2-bytes", default=128*1024, help="NaxRiscv L2 bytes, default 128 KB")
cpu_group.add_argument("--l2-ways", default=8, help="NaxRiscv L2 ways, default 8")
@staticmethod
def args_read(args):
@ -136,6 +140,10 @@ class NaxRiscv(CPU):
NaxRiscv.linker_output_format = f"elf{xlen}-littleriscv"
if args.cpu_count:
NaxRiscv.cpu_count = args.cpu_count
if args.l2_bytes:
NaxRiscv.l2_bytes = args.l2_bytes
if args.l2_ways:
NaxRiscv.l2_ways = args.l2_ways
def __init__(self, platform, variant):
@ -259,6 +267,8 @@ class NaxRiscv(CPU):
md5_hash.update(str(NaxRiscv.litedram_width).encode('utf-8'))
md5_hash.update(str(NaxRiscv.xlen).encode('utf-8'))
md5_hash.update(str(NaxRiscv.cpu_count).encode('utf-8'))
md5_hash.update(str(NaxRiscv.l2_bytes).encode('utf-8'))
md5_hash.update(str(NaxRiscv.l2_ways).encode('utf-8'))
md5_hash.update(str(NaxRiscv.jtag_tap).encode('utf-8'))
md5_hash.update(str(NaxRiscv.jtag_instruction).encode('utf-8'))
md5_hash.update(str(NaxRiscv.with_dma).encode('utf-8'))
@ -298,8 +308,8 @@ class NaxRiscv(CPU):
sdir = os.path.join(vdir, "ext", "SpinalHDL")
if NaxRiscv.update_repo != "no":
NaxRiscv.git_setup("NaxRiscv", ndir, "https://github.com/SpinalHDL/NaxRiscv.git", "coherency", "ee4c6fb7" if NaxRiscv.update_repo=="recommended" else None)
NaxRiscv.git_setup("SpinalHDL", sdir, "https://github.com/SpinalHDL/SpinalHDL.git", "bus-fabric" , "ee95492a" if NaxRiscv.update_repo=="recommended" else None)
NaxRiscv.git_setup("NaxRiscv", ndir, "https://github.com/SpinalHDL/NaxRiscv.git", "coherency", "2948aa4d" if NaxRiscv.update_repo=="recommended" else None)
NaxRiscv.git_setup("SpinalHDL", sdir, "https://github.com/SpinalHDL/SpinalHDL.git", "bus-fabric" , "74c5d7de" if NaxRiscv.update_repo=="recommended" else None)
gen_args = []
gen_args.append(f"--netlist-name={NaxRiscv.netlist_name}")
@ -307,6 +317,8 @@ class NaxRiscv(CPU):
gen_args.append(f"--reset-vector={reset_address}")
gen_args.append(f"--xlen={NaxRiscv.xlen}")
gen_args.append(f"--cpu-count={NaxRiscv.cpu_count}")
gen_args.append(f"--l2-bytes={NaxRiscv.l2_bytes}")
gen_args.append(f"--l2-ways={NaxRiscv.l2_ways}")
gen_args.append(f"--litedram-width={NaxRiscv.litedram_width}")
for region in NaxRiscv.memory_regions:
gen_args.append(f"--memory-region={region[0]},{region[1]},{region[2]},{region[3]}")