Commit Graph

12 Commits

Author SHA1 Message Date
Jose Alberto Meza 387e3e4477 drivers: peci: xec: Enhance PECI bus recovery mechanism
Perform FIFO flush in write failure case
Perform full PECI HW block reset if multiple consecutive
failures are observed
Remove trailing \n from logging messages

Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
2020-11-19 17:00:16 -05:00
Diwakar C 909072d012 peci: driver: Ping cmd fail due to improper tx len and wait handling
In current implementation, for Ping command, write data/payload is
queued in FIFO infinitely eventhough Ping command have write length
of '0'.

This issue is addressed in this patch.

Signed-off-by: Diwakar C <diwakar.c@intel.com>
2020-11-09 15:49:19 -06:00
Rajavardhan Gundi 7d3dde5e5e drivers: peci: xec: Fix error recovery handling
Fix the error recovery mechanism that makes use of a temp variable
to avoid coverity issue without breaking error recovery.

Signed-off-by: Rajavardhan Gundi <rajavardhan.gundi@intel.com>
2020-09-15 12:35:15 -05:00
Tomasz Bursztyka 4dcfb5531c isr: Normalize usage of device instance through ISR
The goal of this patch is to replace the 'void *' parameter by 'struct
device *' if they use such variable or just 'const void *' on all
relevant ISRs

This will avoid not-so-nice const qualifier tweaks when device instances
will be constant.

Note that only the ISR passed to IRQ_CONNECT are of interest here.

In order to do so, the script fix_isr.py below is necessary:

from pathlib import Path
import subprocess
import pickle
import mmap
import sys
import re
import os

cocci_template = """
@r_fix_isr_0
@
type ret_type;
identifier P;
identifier D;
@@
-ret_type <!fn!>(void *P)
+ret_type <!fn!>(const struct device *P)
{
 ...
(
 const struct device *D = (const struct device *)P;
|
 const struct device *D = P;
)
 ...
}

@r_fix_isr_1
@
type ret_type;
identifier P;
identifier D;
@@
-ret_type <!fn!>(void *P)
+ret_type <!fn!>(const struct device *P)
{
 ...
 const struct device *D;
 ...
(
 D = (const struct device *)P;
|
 D = P;
)
 ...
}

@r_fix_isr_2
@
type ret_type;
identifier A;
@@
-ret_type <!fn!>(void *A)
+ret_type <!fn!>(const void *A)
{
 ...
}

@r_fix_isr_3
@
const struct device *D;
@@
-<!fn!>((void *)D);
+<!fn!>(D);

@r_fix_isr_4
@
type ret_type;
identifier D;
identifier P;
@@
-ret_type <!fn!>(const struct device *P)
+ret_type <!fn!>(const struct device *D)
{
 ...
(
-const struct device *D = (const struct device *)P;
|
-const struct device *D = P;
)
 ...
}

@r_fix_isr_5
@
type ret_type;
identifier D;
identifier P;
@@
-ret_type <!fn!>(const struct device *P)
+ret_type <!fn!>(const struct device *D)
{
 ...
-const struct device *D;
...
(
-D = (const struct device *)P;
|
-D = P;
)
 ...
}
"""

def find_isr(fn):
    db = []
    data = None
    start = 0

    try:
        with open(fn, 'r+') as f:
            data = str(mmap.mmap(f.fileno(), 0).read())
    except Exception as e:
        return db

    while True:
        isr = ""
        irq = data.find('IRQ_CONNECT', start)
        while irq > -1:
            p = 1
            arg = 1
            p_o = data.find('(', irq)
            if p_o < 0:
                irq = -1
                break;

            pos = p_o + 1

            while p > 0:
                if data[pos] == ')':
                    p -= 1
                elif data[pos] == '(':
                    p += 1
                elif data[pos] == ',' and p == 1:
                    arg += 1

                if arg == 3:
                    isr += data[pos]

                pos += 1

            isr = isr.strip(',\\n\\t ')
            if isr not in db and len(isr) > 0:
                db.append(isr)

            start = pos
            break

        if irq < 0:
            break

    return db

def patch_isr(fn, isr_list):
    if len(isr_list) <= 0:
        return

    for isr in isr_list:
        tmplt = cocci_template.replace('<!fn!>', isr)
        with open('/tmp/isr_fix.cocci', 'w') as f:
            f.write(tmplt)

        cmd = ['spatch', '--sp-file', '/tmp/isr_fix.cocci', '--in-place', fn]

        subprocess.run(cmd)

def process_files(path):
    if path.is_file() and path.suffix in ['.h', '.c']:
        p = str(path.parent) + '/' + path.name
        isr_list = find_isr(p)
        patch_isr(p, isr_list)
    elif path.is_dir():
        for p in path.iterdir():
            process_files(p)

if len(sys.argv) < 2:
    print("You need to provide a dir/file path")
    sys.exit(1)

process_files(Path(sys.argv[1]))

And is run: ./fix_isr.py <zephyr root directory>

Finally, some files needed manual fixes such.

Fixes #27399

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-09-02 13:48:13 +02:00
Tomasz Bursztyka e18fcbba5a device: Const-ify all device driver instance pointers
Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.

A coccinelle rule is used for this:

@r_const_dev_1
  disable optional_qualifier
@
@@
-struct device *
+const struct device *

@r_const_dev_2
 disable optional_qualifier
@
@@
-struct device * const
+const struct device *

Fixes #27399

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-09-02 13:48:13 +02:00
Kumar Gala a1b77fd589 zephyr: replace zephyr integer types with C99 types
git grep -l 'u\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/u\(8\|16\|32\|64\)_t/uint\1_t/g"
	git grep -l 's\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/s\(8\|16\|32\|64\)_t/int\1_t/g"

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-06-08 08:23:57 -05:00
Flavio Ceolin c07f71e3fe drivers: peci: Add verification handlers
Add verification handlers for syscalls defined in peci driver.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2020-05-25 18:06:22 +02:00
Kumar Gala 7a81cd9747 drivers: microchip: Convert microchip drivers to new DT_INST macros
Convert older DT_INST_ macro use in microchip drivers to the new
include/devicetree.h DT_INST macro APIs.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-03-26 16:31:52 -05:00
Jose Alberto Meza 04e190ab87 drivers: peci: xec: Re-add error recovery handling
Using temp variable to avoid coverity issue without breakin
error recovery.

Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
2020-03-23 17:16:46 -07:00
Anas Nashif 24f77ca167 drivers: peci: remove self-assignment
Assigning "base->ERROR" to itself has no effect.

Fixes #23586

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2020-03-23 14:10:58 -04:00
Jose Alberto Meza 55e6b294f2 drivers: peci: Add PECI driver for microchip XEC family
Add PECI driver that support PECI API.

Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
2020-03-13 18:53:04 +02:00
Jose Alberto Meza 0de98c1bce drivers: peci: Add Kconfig for PECI driver
Add the Kconfig for generic PECI drivers.

Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
2020-03-13 18:53:04 +02:00