Commit Graph

25 Commits

Author SHA1 Message Date
Olof Johansson
10baa64c02 all: run clang-format and update checked-in files
Noisy commit, no functional changes.

Generated with an current upstream clang-format and:

clang-format -i $(find . -name \*.[ch])

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-24 09:49:46 +05:30
Bin Meng
f9cfe301c9 lib: Disable the boot prints if SBI_SCRATCH_NO_BOOT_PRINTS is set
Use the newly introduced "options" in "struct sbi_scratch" to
conditionally disable the boot prints.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-03-29 15:49:11 +05:30
Bin Meng
215c200ccb lib: Group all prints during boot into sbi_boot_prints()
Refactor the codes a little bit to put all prints during boot into
sbi_boot_prints().

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-03-29 15:49:11 +05:30
Xiang Wang
9eb8f0f90d platform: Make the platform read-only
platform should be a read-only variable, if it is placed in the data
segment, it may be exploited.

Signed-off-by: Xiang Wang <wxjstz@126.com>
2019-03-06 11:10:35 -08:00
Anup Patel
bd98d77298 include: Add separate header for OpenSBI version
Currently, the OpenSBI version is in top-level Makefile so
firmware linking to OpenSBI static library have no-way to
know OpenSBI version.

This patch moves OpenSBI version from top-level Makefile to
sbi/sbi_version.h header which provides OPENSBI_VERSION_MAJOR
and OPENSBI_VERSION_MINOR defines.

NOTE: the SBI spec (or SBI ecall interface) version is
different. The SBI spec version is provided by functions
sbi_ecall_version_major() and sbi_ecall_version_minor().

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-25 11:05:49 -08:00
Anup patel
20990ee0ab all: Update copyright header in all files
This patch updates copyright header in all files as follows:
1. Makes "SPDX-License-Identifier: BSD-2-Clause" as first line
2. Change copyright year to 2019 for Western Digital

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-24 14:07:47 +05:30
Anup Patel
9895d446ae lib: Remove target_hart and hartid parameter from TIMER callbacks
The target_hart and hartid paramter of TIMER callbacks is not
required because it always current hartid which can be obtained
using sbi_current_hartid() API.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-23 08:39:26 +05:30
Anup Patel
74fd2e5bb2 lib: Remove hartid parameter from IRQCHIP callbacks
The hartid parameter in IRQCHIP callbacks of sbi_platform
is not required because current hartid can be determined
using sbi_current_hartid() API.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-23 08:39:26 +05:30
Anup patel
18ec89e46e lib: Remove source_hart and hartid parameter from IPI callbacks
The source_hart and hartid parameter is really not required in
IPI callbacks of sbi_platform because current hartid can always
be obtained by calling sbi_current_hartid() API.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-23 08:39:26 +05:30
Anup Patel
fea9e2b5f3 lib: Remove hartid paramter from early_init() and final_init() callbacks
We simplify early_init() and final_init() callbacks of sbi_platform
by removing "hartid" parameter.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-23 08:39:26 +05:30
Anup Patel
3fde8f3f64 lib: Update documentation of sbi_init()
We don't need to pre-enable MSIP in MIE CSR when
calling sbi_init() from firmware. This patch updates
documentation accordingly.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-22 11:40:15 +05:30
Damien Le Moal
6939d345ab lib: Fix banner
Define the "OpenSBI" logo string as a macro renamed BANNER, since
it is one rather than a logo.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2019-01-21 09:58:33 +05:30
Anup Patel
3298251f0c include: Add documentation for sbi_trap_regs and friends
This patch adds doxygen style documentation for struct sbi_trap_regs
and related macros/defines/functions.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-16 11:25:25 +05:30
Anup Patel
5f097cbf07 lib: Add documentation for sbi_init() API
This patch adds doxygen style documentation for sbi_init() API.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-16 11:25:25 +05:30
Anup Patel
52ed1d1709 lib: Simplify sbi_platform timer_init() hooks
Instead of having separate timer_init() hooks for cold and
warm boot, this patch updates struct sbi_platform to have just
one timer_init() hook. The type of boot (cold or warm) is now
a boolean flag parameter for the updated timer_init() hook.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-27 09:35:09 +05:30
Anup Patel
c1b6200653 lib: Simplify sbi_platform ipi_init() hooks
Instead of having separate ipi_init() hooks for cold and warm boot,
this patch updates struct sbi_platform to have just one ipi_init()
hook. The type of boot (cold or warm) is now a boolean flag parameter
for the updated ipi_init() hook.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-27 09:35:09 +05:30
Anup Patel
e34aa8a671 lib: Simplify sbi_platform irqchip_init() hooks
Instead of having separate irqchip_init() hooks for cold and
warm boot, this patch updates struct sbi_platform to have just
one irqchip_init() hook. The type of boot (cold or warm) is now
a boolean flag parameter for the updated irqchip_init() hook.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-27 09:35:09 +05:30
Anup Patel
7b59571758 lib: Simplify sbi_platform early_init() and final_init() hooks
Instead of having separate early_init() and final_init() hooks
for cold and warm boot, this patch updates struct sbi_platform
to have just one early_init() and one final_init() hook. The
type of boot (cold or warm) is now a boolean flag parameter for
the updated early_init() and final_init() hooks.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-27 09:35:09 +05:30
Atish Patra
88b173b33b Introduce hart disabled parameter in platform.
As of now, uboot doesn't have support for SMP.
Moreover, unleashed board has a E51 hart which
doesn't not support S mode.

We should only boot only 1 non-zero hart.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
2018-12-21 22:11:21 -08:00
Damien Le Moal
5563a03354 Introduce sbi_current_hartid()
Use this helper instead of hardcoding csr_read(mhartid).

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2018-12-21 17:06:59 +09:00
Damien Le Moal
426adf9f60 Cleanup and rename sbi_hart_boot_next()
Cleanup sbi_hart_boot_nexti() code, adding messages for clarity and
rename the function to sbi_hart_switch_mode() to reflect what the
function actually does.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2018-12-21 16:44:53 +09:00
Damien Le Moal
84df181c84 Add a banner
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2018-12-21 15:09:13 +09:00
Damien Le Moal
aa68f0252f Refine platform features control
Allow a platform to report its supported features in more details.
The new features defined are:
* SBI_PLATFORM_HAS_PMP
* SBI_PLATFORM_HAS_SCOUNTEREN
* SBI_PLATFORM_HAS_MCOUNTEREN

In addition, define the macro SBI_PLATFORM_DEFAULT_FEATURES as the set
of features that are generally expected to be supported by a Linux
capable platform.

Operations touching the features controlled with these falgs are not
executed if the platform does not set the corresponding feature flags.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2018-12-21 15:09:13 +09:00
Atish Patra
84971c0bc0 Use wfi for coldboot finish call.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
2018-12-20 15:55:27 -08:00
Anup Patel
9e8ff05cb6 Initial commit.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-11 19:24:06 +05:30