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Add PMU node example for event index to counter index mapping
and selector value translation of Andes' CPUs.
Currently, there are 4 HPM counters that can be used to monitor
all of the events for each hart.
Signed-off-by: Yu Chien Peter Lin <[email protected]>
Reviewed-by: Locus Wei-Han Chen <[email protected]>
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
Reviewed-by: Lad Prabhakar <[email protected]>
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In the past, we used fdt_reset_thead to help customers with prototype
verification. However, with the emergence of the Big-little SoC system,
it can no longer meet the demand. Therefore, we use zero_stage_boot
instead of fdt_reset_thead. It cleans up the opensbi code and ends the
disputation of reset_sample's dts.
This patch removes the fdt_reset_thead component and updates the related
doc.
Signed-off-by: Guo Ren <[email protected]>
Signed-off-by: Guo Ren <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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"Zicsr" isa extension has been separated from "I" extension.
This patch add the isa requirement of "Zicsr" extension in
platform requirements documentation.
Signed-off-by: Yangjie Zhang <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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The base of .text is defined by `FW_TEXT_START`, not `FW_TEXT_BASE`.
Signed-off-by: Hoa Nguyen <[email protected]>
Reviewed-by: Xiang W <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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We do have an official OpenSBI logo which was designed few months ago
and was also approved by RISC-V International. Lets add this logo
under docs and also use it in the top-level README.md
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Andrew Jones <[email protected]>
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When using `PLATFORM=generic` defaults, the kernel is loaded at
`FW_JUMP_ADDR`, and the FDT is loaded at `FW_JUMP_FDT_ADDR.
Therefore, the maximum kernel size before `FW_JUMP_FDT_ADDR` must
be increased is `$(( FW_JUMP_FDT_ADDR - FW_JUMP_ADDR ))`.
The example calculation assumes `rv64`, and is wrong to boot
(off by 0x200000). Fix it and update it for the general case.
Signed-off-by: Gabriel Somlo <[email protected]>
Reviewed-by: Andrew Jones <[email protected]>
Reviewed-by: Xiang W <[email protected]>
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When the system-suspend-test property is present in the domain config
node as shown below, implement system suspend with a simple 5 second
delay followed by a WFI. This allows testing system suspend when the
low-level firmware doesn't support it.
/ {
chosen {
opensbi-domains {
compatible = "opensbi,domain,config";
system-suspend-test;
};
Signed-off-by: Andrew Jones <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Replace the commas with dashes to correct the name.
Signed-off-by: Andrew Jones <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Only privileged domains should be allowed to suspend the entire
system. Give the root domain this property by default and allow
other domains to be given the property by specifying it in the
DT.
Signed-off-by: Andrew Jones <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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commit 3e2f573e707e ("lib: utils: Disallow non-root domains from adding M-mode regions")
added access permission check in __fdt_parse_region(). With the
existing DT example in the doc OpenSBI won't boot anymore.
Let's update the DT example so that it can work out of the box.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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In docs/firmware/fw.md, there's a configuration parameter called
FW_TEXT_ADDR, which actually should be FW_TEXT_START, so fix it.
Signed-off-by: Shengyu Qu <[email protected]>
Reviewed-by: Xiang W <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Fix hyperlink due to the typo.
Signed-off-by: Yu Chien Peter Lin <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Updated the various permissions bits available for domains
defined in DT node and restrictions on them.
Signed-off-by: Himanshu Chauhan <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
Tested-by: Anup Patel <[email protected]>
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The RISC-V convention for the privilege mode is capital letter, like
'M-mode', instead of 'm-mode'.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Since commit b28f070, it is possible for platforms to run perf monitoring
even if mcountinhibit is not supported. Sampling still won't be possible
though as it requires sscofpmf extension.
Update the docs to remove the restriction.
Signed-off-by: Atish Patra <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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event-to-mhpmevent was deprecated and replaced by
riscv,event-to-mhpmevent, but a reference remains to the old name.
Replace it with the new one.
Signed-off-by: Conor Dooley <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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The first PMU binding example does not terminate properties with a ;,
which is invalid. Noticed while converting the binding to yaml.
Signed-off-by: Conor Dooley <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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This patch adds documentation to build Renesas RZ/Five (R9A07G043F) SoC.
Signed-off-by: Lad Prabhakar <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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The example should use watchdog as nodename instead of wdt.
This is defined in watchdog common schemas:
https://github.com/torvalds/linux/blob/v6.0/Documentation/devicetree/bindings/watchdog/watchdog.yaml#L19
Signed-off-by: Yu Chien Peter Lin <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Update compile option and platform compatible string for AE350 and
add it to the generic platform list.
Signed-off-by: Yu Chien Peter Lin <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Corrected the typos of some documents in the 'docs' folder.
Signed-off-by: zhangdongdong <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Since
commit 9c07c513aa9b ("firmware:Remove FW_PAYLOAD_FDT_PATH compile-time option"),
the section where FDT would be embedded in has changed from *.text* to *.rodata*,
but some places in fw_payload.md and fw.md are still *.text*.
This patch updates the document.
Signed-off-by: Yangjie Zhang <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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We update ae350 documentation to add details about platform device tree.
The nodes and their properties must be provided to properly initialize
data of underlying hardware and access their mmio registers.
Signed-off-by: Yu Chien Peter Lin <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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We fix few typos in documentation.
Signed-off-by: zhangdongdong <[email protected]>
Reviewed-by: Andrew Jones <[email protected]>
Reviewed-by: Xiang W <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Add a tip for OpenSBI's FW_JUMP which helps
users avoid overwriting the kernel.
Signed-off-by: Nylon Chen <[email protected]>
Reviewed-by: Andrew Jones <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Extend example for Unmatched board to provide SBI PMU bindings
for generalized and cache event's where they are applicable.
Signed-off-by: Nikita Shubin <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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bitmap for MHPMCOUNTERx should be 0x18 and not 0x0c, we check
against SBI_PMU_FIXED_CTR_MASK which assumes than first 3 bits are
dedicated to mcycle, mtime and minstret, u74 has 2 hardware counters.
Reported-by: Zhang Xin <[email protected]>
Signed-off-by: Nikita Shubin <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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We update all documentation files to:
1) Remove references to platform specific config.mk file since it is
has been removed.
2) Add details about platform specific configs/defconfig and Kconfig
files mandatory for each platform.
3) Add required packages in top-level README.md
4) Fix typo releated to object.mk in docs/platform/platform.md
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Andrew Jones <[email protected]>
Tested-by: Andrew Jones <[email protected]>
Acked-by: Atish Patra <[email protected]>
Tested-by: Atish Patra <[email protected]>
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Currently, if same build directory is used to compile two different
platforms then lib/utils objects are shared for these platforms.
We will be having platform specific configs to enable/disable drivers
in lib/utils and select compile time options for lib/utils sources.
This means lib/utils sources will now be compiled in a platform
specific way.
To tackle above, we update top-level Makefile as follows:
1) Don't create libsbiutils.a anymore because this can't be shared
between platforms.
2) Compile lib/utils sources separately for each platform.
3) Add comments showing which make rules are for lib/sbi, lib/utils,
firmware, and platform sources.
Signed-off-by: Anup Patel <[email protected]>
Tested-by: Andrew Jones <[email protected]>
Acked-by: Atish Patra <[email protected]>
Tested-by: Atish Patra <[email protected]>
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The CLINT in the Allwinner D1 SoC apparently does not support 64-bit
MMIO access. A property was added to support this quirk (and that
property was copied to the ACLINT MTIMER code). However, since this
difference in behavior makes the D1 CLINT incompatible with the SiFive
CLINT's programming interface, a better solution is to use a separate
compatible string.
Signed-off-by: Samuel Holland <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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The current DT binding description is misleading and confusing. Clarify
the text and provide more examples.
Signed-off-by: Atish Patra <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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This commit makes Spike usable as QEMU (in fact, those are based on
QEMU examples).
Signed-off-by: Tsukasa OI <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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RISC-V privilege specification does not specify how to encode the event ID.
Therefore, each platform is allowed to customize its own encoding rule.
The common encoding methods are as follow, directly assigning a number to an
event, or every bit in the mphmevent CSR controls one specified event or
mixes the above two methods.
To enable OpenSBI to support the above three encoding methods simultaneously,
this patch repurpose the dt property "riscv,raw-event-to-mhpmcounters". The
"riscv,raw-event-to-mhpmcounters" will describes the one or multiple raw
events that could be counted by a set of counters. But, the column number
of "riscv,raw-event-to-mhpmcounters" is extended from 2 to 3. The 1st column
(64bit) is the ID of the raw events. The 2nd column (64bit) represents a
select_mask now to represent the bits used for event ID encoding.
If a platform directly encodes each raw PMU event as a unique ID,
the value of select_mask will be 0xffffffff_ffffffff.
Signed-off-by: Vincent Chen <[email protected]>
Signed-off-by: Atish Patra<[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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As per the DT schema rules, the prefix should be vendor. As the PMU
properties are generic for all vendors, change the prefix to riscv
instead of pmu.
Reviewed-by: Anup Patel <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Signed-off-by: Atish Patra <[email protected]>
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The T-HEAD PLIC implementation requires setting a delegation bit
to allow access from S-mode. Now that the T-HEAD PLIC has its own
compatible string, set this bit automatically from the PLIC driver,
instead of reaching into the PLIC's MMIO space from another driver.
Signed-off-by: Samuel Holland <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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FW_PIC=y is on by default, but the doc is missing when this was
introduced. Add some description for it.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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This updates documentation to describe parameters passed to firmware
from previous booting stage, and corresponding address alignment
requirement.
This also fixes a typo in fw_dynamic.md (it's => its).
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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At present in the rendered platform guide, all instances of <xyz>
are missing. Use < and > to replace <> to make them visible.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Xiang W <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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It's riscv-pk, not riskv-pk.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Xiang W <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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SBI PMU extension requires a firmware to be aware of the event to
counter/mhpmevent mappings supported by the hardware. One approach
is to encode that information in the device tree.
Define a device tree binding that allows a hardware to describe
all the PMU mappings required in concise format.
Reviewed-by: Anup Patel <[email protected]>
Signed-off-by: Atish Patra <[email protected]>
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FW_PIC is on by default. Hence no need to explicitly require it.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Fix several places in the docmentation that are missing spaces.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Describe how to debug OpenSBI on QEMU with GDB.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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The upstream U-Boot/QEMU have been using generic platform for SiFive
HiFive Unleashed board for some time. Let's document sifive_fu540 as
one of the supported targets for "generic" platform.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Let's sort the platform names in alphabetical order.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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With latest U-Boot upstream (v2021.07 in development), the defconfig
name has been changed to sifive_unleashed_defconfig. Update the doc.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Add description and dts examples for T-HEAD C9xx platforms.
Signed-off-by: Guo Ren <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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We could use platform/generic instead, and won't use
platform/thead/c910 again.
Signed-off-by: Guo Ren <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Updates link in platforms documentation to point to the correct
OpenPiton document.
Signed-off-by: hasheddan <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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This patch adds domain device tree binding documentation in the
OpenSBI domain support documentation.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
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