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coreboot-kgpe-d16/src/mainboard/emulation/spike-riscv/spike_util.c

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riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
/*
* Copyright (c) 2013, The Regents of the University of California (Regents).
* All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Regents nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
* SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
* OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
* HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
* MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*/
riscv-spike: support for Spike emulation of riscv Spike support: QEMU RISCV is broken, and the maintainers at Berkeley are working on it, but at the moment spike is the only way to test on riscv. Add support for spike console output for debugging. Privileged ISA: Update to privileged ISA in RISCV (machine, supervisor, hypervisor, user modes) broke exisitng RISCV asm, and bootblock.S was updated to match the new spec. Clean old assembly [pg: things build with gcc 4.9 now, but don't expect them to work. Hardcoding register names into the assembler language may not be the smartest idea of the RISCV folks.] Change-Id: Ie2c109d3c26712c207512f74f28ce1a925e6e181 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11078 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-07-30 02:43:20 +02:00
#include <spike_util.h>
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
#include <arch/errno.h>
#include <atomic.h>
#include <string.h>
#include <console/console.h>
uintptr_t translate_address(uintptr_t vAddr) {
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
// TODO: implement the page table translation algorithm
//uintptr_t pageTableRoot = read_csr(sptbr);
uintptr_t physAddrMask = 0xfffffff;
uintptr_t translationResult = vAddr & physAddrMask;
printk(BIOS_DEBUG, "Translated virtual address 0x%llx to physical address 0x%llx\n", vAddr, translationResult);
return translationResult;
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
}
uintptr_t mcall_query_memory(uintptr_t id, memory_block_info *p)
{
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
uintptr_t physicalAddr = translate_address((uintptr_t) p);
memory_block_info *info = (memory_block_info*) physicalAddr;
if (id == 0) {
info->base = 0x1000000; // hard coded for now, but we can put these values somewhere later
info->size = 0x7F000000 - info->base;
return 0;
}
return -1;
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
}
uintptr_t mcall_send_ipi(uintptr_t recipient)
{
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
//if (recipient >= num_harts)
//return -1;
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
if (atomic_swap(&OTHER_HLS(recipient)->ipi_pending, 1) == 0) {
mb();
write_csr(send_ipi, recipient);
}
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
return 0;
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
}
uintptr_t mcall_clear_ipi(void)
{
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
// only clear SSIP if no other events are pending
if (HLS()->device_response_queue_head == NULL) {
clear_csr(mip, MIP_SSIP);
mb();
}
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
return atomic_swap(&HLS()->ipi_pending, 0);
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
}
uintptr_t mcall_shutdown(void)
{
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
while (1) write_csr(mtohost, 1);
return 0;
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
}
uintptr_t mcall_set_timer(unsigned long long when)
{
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
write_csr(mtimecmp, when);
clear_csr(mip, MIP_STIP);
set_csr(mie, MIP_MTIP);
return 0;
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
}
uintptr_t mcall_dev_req(sbi_device_message *m)
{
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
if ((m->dev > 0xFFU) | (m->cmd > 0xFFU) | (m->data > 0x0000FFFFFFFFFFFFU)) return -EINVAL;
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
while (swap_csr(mtohost, TOHOST_CMD(m->dev, m->cmd, m->data)) != 0);
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
m->sbi_private_data = (uintptr_t)HLS()->device_request_queue_head;
HLS()->device_request_queue_head = m;
HLS()->device_request_queue_size++;
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
return 0;
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
}
uintptr_t mcall_dev_resp(void)
{
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
htif_interrupt(0, 0);
sbi_device_message* m = HLS()->device_response_queue_head;
if (m) {
//printm("resp %p\n", m);
sbi_device_message* next = (void*)atomic_read(&m->sbi_private_data);
HLS()->device_response_queue_head = next;
if (!next) {
HLS()->device_response_queue_tail = 0;
// only clear SSIP if no other events are pending
clear_csr(mip, MIP_SSIP);
mb();
if (HLS()->ipi_pending) set_csr(mip, MIP_SSIP);
}
}
return (uintptr_t)m;
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
}
uintptr_t mcall_hart_id(void)
{
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
return HLS()->hart_id;
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
}
void hls_init(uint32_t hart_id)
{
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
memset(HLS(), 0, sizeof(*HLS()));
HLS()->hart_id = hart_id;
riscv-trap-handling: Add implementation for trap calls in riscv RISCV requires the bios/bootloader to set up an interface by which it can get information about memory, talk to host devices, etc. Put implementation for spike in src/mainboard/emulation/spike-riscv/spike_util.c, and src/arch/riscv/trap_handler.c Change-Id: Ie1d5f361595e48fa6cc1fac25485ad623ecdc717 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11368 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-26 23:54:31 +02:00
}
riscv-spike: support for Spike emulation of riscv Spike support: QEMU RISCV is broken, and the maintainers at Berkeley are working on it, but at the moment spike is the only way to test on riscv. Add support for spike console output for debugging. Privileged ISA: Update to privileged ISA in RISCV (machine, supervisor, hypervisor, user modes) broke exisitng RISCV asm, and bootblock.S was updated to match the new spec. Clean old assembly [pg: things build with gcc 4.9 now, but don't expect them to work. Hardcoding register names into the assembler language may not be the smartest idea of the RISCV folks.] Change-Id: Ie2c109d3c26712c207512f74f28ce1a925e6e181 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11078 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-07-30 02:43:20 +02:00
uintptr_t htif_interrupt(uintptr_t mcause, uintptr_t* regs) {
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
uintptr_t fromhost = swap_csr(mfromhost, 0);
if (!fromhost)
return 0;
uintptr_t dev = FROMHOST_DEV(fromhost);
uintptr_t cmd = FROMHOST_CMD(fromhost);
uintptr_t data = FROMHOST_DATA(fromhost);
sbi_device_message* m = HLS()->device_request_queue_head;
sbi_device_message* prev = 0x0;
unsigned long i, n;
for (i = 0, n = HLS()->device_request_queue_size; i < n; i++) {
/*
if (!supervisor_paddr_valid(m, sizeof(*m))
&& EXTRACT_FIELD(read_csr(mstatus), MSTATUS_PRV1) != PRV_M)
panic("htif: page fault");
*/
sbi_device_message* next = (void*)m->sbi_private_data;
if (m->dev == dev && m->cmd == cmd) {
m->data = data;
// dequeue from request queue
if (prev)
prev->sbi_private_data = (uintptr_t)next;
else
HLS()->device_request_queue_head = next;
HLS()->device_request_queue_size = n-1;
m->sbi_private_data = 0;
// enqueue to response queue
if (HLS()->device_response_queue_tail)
{
HLS()->device_response_queue_tail->sbi_private_data = (uintptr_t)m;
}
else
{
HLS()->device_response_queue_head = m;
}
HLS()->device_response_queue_tail = m;
// signal software interrupt
set_csr(mip, MIP_SSIP);
return 0;
}
prev = m;
m = (void*)atomic_read(&m->sbi_private_data);
}
//HLT();
return 0;
//panic("htif: no record");
riscv-spike: support for Spike emulation of riscv Spike support: QEMU RISCV is broken, and the maintainers at Berkeley are working on it, but at the moment spike is the only way to test on riscv. Add support for spike console output for debugging. Privileged ISA: Update to privileged ISA in RISCV (machine, supervisor, hypervisor, user modes) broke exisitng RISCV asm, and bootblock.S was updated to match the new spec. Clean old assembly [pg: things build with gcc 4.9 now, but don't expect them to work. Hardcoding register names into the assembler language may not be the smartest idea of the RISCV folks.] Change-Id: Ie2c109d3c26712c207512f74f28ce1a925e6e181 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11078 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-07-30 02:43:20 +02:00
}
uintptr_t mcall_console_putchar(uint8_t ch)
{
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
while (swap_csr(mtohost, TOHOST_CMD(1, 1, ch)) != 0);
while (1) {
uintptr_t fromhost = read_csr(mfromhost);
if (FROMHOST_DEV(fromhost) != 1 || FROMHOST_CMD(fromhost) != 1) {
if (fromhost)
htif_interrupt(0, 0);
continue;
}
write_csr(mfromhost, 0);
break;
}
return 0;
riscv-spike: support for Spike emulation of riscv Spike support: QEMU RISCV is broken, and the maintainers at Berkeley are working on it, but at the moment spike is the only way to test on riscv. Add support for spike console output for debugging. Privileged ISA: Update to privileged ISA in RISCV (machine, supervisor, hypervisor, user modes) broke exisitng RISCV asm, and bootblock.S was updated to match the new spec. Clean old assembly [pg: things build with gcc 4.9 now, but don't expect them to work. Hardcoding register names into the assembler language may not be the smartest idea of the RISCV folks.] Change-Id: Ie2c109d3c26712c207512f74f28ce1a925e6e181 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11078 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-07-30 02:43:20 +02:00
}
void testPrint(void) {
riscv-memlayout: fix existing memlayout issues, add sbi interface Existing memlayout code placed sections in overlapping areas, and would overwrite the payload if it was large enough. Update memlayout.ld in src/mainboard/emulation/spike-riscv to represent the spike emulator, and add sbi interface which now has room into src/arch/riscv/bootblock.S. Add utility code to qemu-riscv, but emulator itself has yet to be updated to new ISA and as such should not be used. Update Makefile to include all the files necessary for sbi interface. Clean up unused include in src/arch/riscv/include/atomic.h and whitespace in src/mainboard/emulation/spike-riscv/memlayout.ld Fixed whitespace issues in spike_util.c Change-Id: Id97fe75e45ac1361005bec6d421756ee3f98a508 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11370 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-08-27 00:39:16 +02:00
/* Print a test command to check Spike console output */
mcall_console_putchar('h');
mcall_console_putchar('e');
mcall_console_putchar('l');
mcall_console_putchar('l');
mcall_console_putchar('o');
mcall_console_putchar('\n');
riscv-spike: support for Spike emulation of riscv Spike support: QEMU RISCV is broken, and the maintainers at Berkeley are working on it, but at the moment spike is the only way to test on riscv. Add support for spike console output for debugging. Privileged ISA: Update to privileged ISA in RISCV (machine, supervisor, hypervisor, user modes) broke exisitng RISCV asm, and bootblock.S was updated to match the new spec. Clean old assembly [pg: things build with gcc 4.9 now, but don't expect them to work. Hardcoding register names into the assembler language may not be the smartest idea of the RISCV folks.] Change-Id: Ie2c109d3c26712c207512f74f28ce1a925e6e181 Signed-off-by: Thaminda Edirisooriya <thaminda@google.com> Reviewed-on: http://review.coreboot.org/11078 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-07-30 02:43:20 +02:00
}
Reference in a new issue Copy permalink