Hello build bot (Jenkins),
I'd like you to reexamine a change. Please visit
https://review.coreboot.org/27430
to look at the new patch set (#3).
Change subject: riscv: src/arch/riscv/bootblock.S
......................................................................
riscv: src/arch/riscv/bootblock.S
Add an interface to support cache as ram.
Initialize stack pointer for each hart.
Change-Id: Ic3920e01dd1a7f047a53de57250589000a111409
Signed-off-by: Xiang Wang <wxjstz(a)126.com>
---
M src/arch/riscv/bootblock.S
1 file changed, 21 insertions(+), 15 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/30/27430/3
--
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ic3920e01dd1a7f047a53de57250589000a111409
Gerrit-Change-Number: 27430
Gerrit-PatchSet: 3
Gerrit-Owner: Xiang Wang <wxjstz(a)126.com>
Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org>
Hello build bot (Jenkins),
I'd like you to reexamine a change. Please visit
https://review.coreboot.org/27430
to look at the new patch set (#2).
Change subject: riscv: src/arch/riscv/bootblock.S
......................................................................
riscv: src/arch/riscv/bootblock.S
Add an interface to support cache as ram.
Initialize stack pointer for each hart.
Change-Id: Ic3920e01dd1a7f047a53de57250589000a111409
Signed-off-by: Xiang Wang <wxjstz(a)126.com>
---
M src/arch/riscv/bootblock.S
1 file changed, 22 insertions(+), 15 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/30/27430/2
--
To view, visit https://review.coreboot.org/27430
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ic3920e01dd1a7f047a53de57250589000a111409
Gerrit-Change-Number: 27430
Gerrit-PatchSet: 2
Gerrit-Owner: Xiang Wang <wxjstz(a)126.com>
Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org>
Xiang Wang has uploaded this change for review. ( https://review.coreboot.org/27430
Change subject: riscv: src/arch/riscv/bootblock.S
......................................................................
riscv: src/arch/riscv/bootblock.S
Add an interface to support cache as ram.
Initialize stack pointer for each hart.
Change-Id: Ic3920e01dd1a7f047a53de57250589000a111409
Signed-off-by: Xiang Wang <wxjstz(a)126.com>
---
M src/arch/riscv/bootblock.S
1 file changed, 24 insertions(+), 17 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/30/27430/1
diff --git a/src/arch/riscv/bootblock.S b/src/arch/riscv/bootblock.S
index 0b5a2b2..0c30f6f 100644
--- a/src/arch/riscv/bootblock.S
+++ b/src/arch/riscv/bootblock.S
@@ -34,31 +34,38 @@
#
csrw mscratch, a1
- # N.B. This only works on low 4G of the address space
+ # initialize cache as ram
+ call cache_as_ram
+
+ # initialize stack point for each hart
# and the stack must be page-aligned.
- la sp, _estack
+ # 0xDEADBEEF used to check stack overflow
+ csrr a0, mhartid
+ la t0, _stack
+ slli t1, a0, RISCV_PGSHIFT
+ add t0, t0, t1
+ li t1, 0xDEADBEEF
+ sd t1, 0(t0)
+ li t1, RISCV_PGSIZE - HLS_SIZE
+ add sp, t0, t1
- # poison the stack
- la t1, _stack
- li t0, 0xdeadbeef
- sd t0, 0(t1)
-
- # make room for HLS and initialize it
- addi sp, sp, -HLS_SIZE
-
- // Once again, the docs and toolchain disagree.
- // Rather than get fancy I'll just lock this down
- // until it all stabilizes.
- //csrr a0, mhartid
- csrr a0, 0xf14
- call hls_init
-
+ # initialize entry of interrupt/exception
la t0, trap_entry
csrw mtvec, t0
+ # initialize hart-local storage
+ csrr a0, mhartid
+ call hls_init
+
# clear any pending interrupts
csrwi mip, 0
# set up the mstatus register for VM
call mstatus_init
tail main
+
+ // These codes need to be implemented on a specific SoC.
+ .weak cache_as_ram
+cache_as_ram:
+ ret
+
--
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Ic3920e01dd1a7f047a53de57250589000a111409
Gerrit-Change-Number: 27430
Gerrit-PatchSet: 1
Gerrit-Owner: Xiang Wang <wxjstz(a)126.com>