Linus Torvalds just announced the release of Linux 5.13: We've had a quiet week since rc7 and I see no reason to delay 5.13. The shortlog for the week is very small, with only 88 unmerged commits. It's a fairly random mix of fixes and since it's so small, I just suggest users scan the attached shortlog.
Of course, even though the last week has been quiet, 5.13 is still quite a big release overall. In fact, it's one of the biggest 5.x releases, with over 16k commits, from over 2k developers.
And with 5.13 out the door, that obviously means the “merge window” for 5.14 will start tomorrow. I already have a few pull requests pending, but as usual, I ask people to give 5.13 at least a quick test run before we move on to the exciting new pending stuff.
See also: Linux systemd security bug existed for 7 years and they just fixed it!
Some notable changes for Linux 5.13 are as follows:
- Preparatory work to support the Apple M1 processor
- The Landlock security module was merged after 34 revisions.
- Control-flow integrity for the kernel.
- Support for incoming AMD and Intel graphics chips
Arm changes in Linux 5.13
In addition to preliminary support for the Apple M1 SoC, there were a lot of Arm-related changes as usual:
Allwinner
- Allwinner V3s – Sigma-delta modulation in audio PLL
- New secondary interrupt controller connection to support wakeup
- Allwinner H6
- HDMI support for BananaPi M2-Zero
- New device – Topwise A721 Tablet (Allwinner A10)
Rockchip
- Support for Rockchip RK3568 / RK3566 pin controller
- Support for the clock controller on the new Rockchip rk3568
- Some cleanups for modification rk3399
- Ethernet – Add Rockchip DWMAC support
- New board – NanoPi R4S board (RK3399)
Amlogic
- Some minor fixes
- New devices – Amlogic GXL (S905D): MECOOL KII Pro TV box; Amlogic GXM (S912): MECOOL KIII Pro, Minix Neo U9-H boxes
Samsung
- Clock driver – Clean up unnecessary dev_err() calls after dev_ioremap_resource(); patch update for clk-exynos7 driver (part of upcoming Galaxy S6 device support)
- DTS ARM changes for Linux 5.13
- DTS ARM64 Changes – Cleanup
Qualcomm
- Added Qualcomm SC7280 Laptop SoC after SC7180 (Snapdragon 7c) used in some Chromebook and Windows laptops and its corresponding reference board
- PMIC – Support for PM8350, PM8350B, PM8350C, PMK8350, PMR735A and PMR735B in the Qualcomm PMIC GPIO driver.
- Improved detection for SCM call contracts
- Support for specific wifi firmware path
- PHY Driver
- usb3-dp phy for Qualcomm SM8250
- USB phy for Qualcomm SC7280
- ARM64 DT Updates
- Extends the original SM8350 description merged into v5.12 with support for CPUfreq, SMMU, UFS, RPMHPD, SPMI, USB and remoteproc. Adds definitions for the 6 PMICs found in the MTP and introduces the new SM8350 Hardware Development Kit (HDK)
- The SDM845 acquires nodes related to the camera.
- Added RPMh, coresight, AOSS QMP, ipcc, llcc controllers for SC7280.
- It adds interconnect, PRNG, and thermals to the SM8350.
- SM8150 gets iommu settings and the rest of the I2C controllers
- Qualcomm SC8180 – Support for ACPI control
- Audio support has been enabled in the Trogdor (SC7280) family of devices.
- Added GIC hypervisor register & interrupt for when Linux boots to EL2 on MSM8916.
- ARM64 defconfig updates
- Enabling the SM8350 TLMM and GCC drivers, which are required to boot the platform
- Enable all hardware support currently available for the Qualcomm SDX55 platform in qcom_defconfig.
- New devices and panels
- Qualcomm X55 based on Telit FN980 TLB SoM, Thundercomm TurboX T55 SoM
- OnePlus 5/5T phones based on Qualcomm MSM8998
- Snapdragon 888 Mobile Development Kit
See also: Intel updates Linux with Sapphire Rapids support
MediaTek
- Pinctrl Driver – Support for Mediatek MT8195.
- ASoC – Mediatek MT6358 accessory detection
- Clock driver – “Suitable” clk driver for Mediatek MT7621 SoCs
- PHY – Mediatek DSI and HDMI PHY updates
- Memory fixes
- Mediatek DRM Next for Linux 5.13
- Improvement of line time for EOTp.
- Add mt8192 dpi support.
- crtc config-updating becomes individual.
- HDMI connection creation is not supported.
Other new Arm hardware platforms and SoCs
- ASpeed - AST2500 BMC found on ASRock E3C246D4I Xeon server board
- Broadcom – TP-Link Archer C2300 V1 router based on BCM4908
- MStar Camera – SSD202D M5Stack UnitV2
- Marvell – Armada 38x based ethernet switch
- NHR
- Nuvoton – NPCM730 Quanta GBS BMC
- STMicro
Linux 5.13 updates for the MIPS architecture
It seems that MIPS is only getting a few minor changes this time:
- Removed get_fs / set_fs
- Removed broken MIPS KVM trap and support emulation
- Added support for Loongson-2K1000
- Corrections and cleanups
See also: Linux bug lets you open root shell on most distributions
RISC-V changelog for Linux 5.13
- Support for the memtest= kernel command line argument.
- Support for building the kernel with FORTIFY_SOURCE.
- Support for “buildtar build target”.
- Some build system cleanups to pass more LLVM-friendly arguments.
- Support for kprobes.
- A refreshed kernel memory map, the first part of sv48 system support.
- Improvements to kexec, along with support for kdump and crash kernels.
- An errata framework based on workarounds, along with support for handling a pair of errata that manifests in some SiFive designs.
- Support for XIP.
- A device tree for the Microchip PolarFire ICICLE SoC and associated dev board.
The KernelNewbies website should soon publish a detailed changelog of Linux 5.13.
Information source: cnx-software.com
