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Some features like workload type prediction and power floor events require interrupt support to avoid polling. Here interrupts are enabled and disabled via sending mailbox commands. The mailbox command ID is 0x1E for read and 0x1F for write. The interrupt configuration will require mutex protection as it involves read-modify-write operation. Since mutex are already used in the mailbox read/write functions: send_mbox_write_cmd() and send_mbox_read_cmd(), there will be double locking. But, this can be avoided by moving mutexes from mailbox read/write processing functions to the callers: processor_thermal_send_mbox_[read|write]_cmd(). Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> [ rjw: Adjust subject, fix up computation ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
fs | ||
include | ||
init | ||
io_uring | ||
ipc | ||
kernel | ||
lib | ||
LICENSES | ||
mm | ||
net | ||
rust | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | ||
.cocciconfig | ||
.get_maintainer.ignore | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
.rustfmt.toml | ||
COPYING | ||
CREDITS | ||
Kbuild | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
README |
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.