January 2024 - Kernel - mailweb.openeuler.org

[PATCH OLK-5.10] drm/amd/display: Exit idle optimizations before attempt to access PHY
by Baogen Shang 12 Jan '24

12 Jan '24

From: Leo Chen <sancchen(a)amd.com> stable inclusion from stable-v5.10.205 commit 357badc01add6e98dd69c9831843da9cc3e905e9 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8AS5P CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=… ------------------------- [ Upstream commit de612738e9771bd66aeb20044486c457c512f684 ] [Why & How] DMUB may hang when powering down pixel clocks due to no dprefclk. It is fixed by exiting idle optimization before the attempt to access PHY. Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas(a)amd.com> Acked-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Leo Chen <sancchen(a)amd.com> Tested-by: Daniel Wheeler <daniel.wheeler(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Baogen Shang <baogen.shang(a)windriver.com> --- drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c index e33fe0207b9e..53e8defd3475 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c @@ -1682,10 +1682,13 @@ void dce110_enable_accelerated_mode(struct dc *dc, struct dc_state *context) hws->funcs.edp_backlight_control(edp_link_with_sink, false); } /*resume from S3, no vbios posting, no need to power down again*/ + clk_mgr_exit_optimized_pwr_state(dc, dc->clk_mgr); + power_down_all_hw_blocks(dc); disable_vga_and_power_gate_all_controllers(dc); if (edp_link_with_sink && !keep_edp_vdd_on) dc->hwss.edp_power_control(edp_link_with_sink, false); + clk_mgr_optimize_pwr_state(dc, dc->clk_mgr); } bios_set_scratch_acc_mode_change(dc->ctx->dc_bios); } -- 2.33.0

1 0

[PATCH OLK-6.6 0/2] Export remaining aarch64 kvm exit reasons
by lishusen 12 Jan '24

12 Jan '24

Export remaining aarch64 kvm exit reasons to debugfs Zenghui Yu (1): KVM: arm64: Fix {fp_asimd,sve}_exit_stat manipulation chenjiajun (1): kvm: debugfs: export remaining aarch64 kvm exit reasons to debugfs C | 0 arch/arm64/include/asm/kvm_host.h | 15 +++++++++++++++ arch/arm64/kvm/handle_exit.c | 9 +++++++++ arch/arm64/kvm/hyp/include/hyp/switch.h | 2 ++ arch/arm64/kvm/mmu.c | 1 + arch/arm64/kvm/sys_regs.c | 11 +++++++++++ 6 files changed, 38 insertions(+) create mode 100644 C -- 2.33.0

2 3

[PATCH OLK-6.6 00/26] Introduce dynamic pool feature
by Liu Shixin 12 Jan '24

12 Jan '24

Rename from dynamic hugetlb(OLK_5.10) to dynamic pool. A per-memcg pagepool. The task in the memcg will prefer to alloc pages from corresponding pool. Liu Shixin (26): mm/memcg: introduce mem_cgroup_scan_cgroups to scan all memcgs mm/memcg: introduce memcg_has_children to check memcg mm/dynamic_pool: introduce per-memcg memory pool mm/dynamic_pool: introduce PG_dpool to mark free pages in dpool mm/dynamic_pool: introduce PG_pool to mark pages allocated from dpool mm/dynamic_pool: create dpool by dhugetlb.nr_pages interface mm/dynamic_pool: fill dpool with HugeTLB 1G pages mm/dynamic_pool: add interface to configure the count of hugepages mm/dynamic_pool: add restore_pool ops to reclaim memory and restore hugepages mm/dynamic_pool: support to flow pages between 1G and 2M pages pool mm/dynamic_pool: support to flow pages between 2M and 4K pages pool mm/dynamic_pool: migrate used pages before promote to huge page mm/dynamic_pool: call mem_cgroup_force_empty before restore pool mm/dynamic_pool: prevent task attach to another dpool mm/dynamic_pool: support page allocation from dpool mm/dynamic_pool: speed up allocation by percpu pages pool mm/dynamic_pool: check resv for HugeTLB allocation from dpool mm/dynamic_pool: support HugeTLB page allocation from dpool mm/dynamic_pool: add tracepoints for dpool mm/dynamic_pool: fill dpool with pagelist mm/dynamic_pool: disable THP for task attached with dpool mm/dynamic_pool: compatible with HugeTLB dissolve mm/dynamic_pool: compatible with HugeTLB Vmemmap mm/dynamic_pool: compatible with memory hwpoison mm/dynamic_hugetlb: add Document for dynamic hugetlb feature mm/dynamic_pool: enable CONFIG_DYNAMIC_POOL on x86_64 and arm64 by default Documentation/mm/dynamic_hugetlb.rst | 100 ++ arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + fs/hugetlbfs/inode.c | 5 + fs/proc/meminfo.c | 3 + fs/proc/page.c | 3 + include/linux/dynamic_pool.h | 225 ++++ include/linux/hugetlb.h | 11 + include/linux/memcontrol.h | 21 + include/linux/memory_hotplug.h | 5 + include/linux/mm.h | 1 + include/linux/page-flags.h | 22 + include/ras/ras_event.h | 1 + include/trace/events/dynamic_pool.h | 174 +++ include/trace/events/mmflags.h | 7 + include/uapi/linux/kernel-page-flags.h | 1 + kernel/cgroup/cgroup.c | 12 + mm/Kconfig | 9 + mm/Makefile | 1 + mm/dynamic_pool.c | 1722 ++++++++++++++++++++++++ mm/hugetlb.c | 103 +- mm/hugetlb_vmemmap.c | 4 + mm/internal.h | 6 + mm/khugepaged.c | 18 + mm/memcontrol.c | 119 +- mm/memory-failure.c | 16 +- mm/memory.c | 7 +- mm/memory_hotplug.c | 2 +- mm/page_alloc.c | 28 +- mm/shmem.c | 3 + mm/show_mem.c | 2 + tools/mm/page-types.c | 1 + 32 files changed, 2595 insertions(+), 39 deletions(-) create mode 100644 Documentation/mm/dynamic_hugetlb.rst create mode 100644 include/linux/dynamic_pool.h create mode 100644 include/trace/events/dynamic_pool.h create mode 100644 mm/dynamic_pool.c -- 2.25.1

2 27

[PATCH OLK-5.10] drm/radeon: possible buffer overflow
by Dapeng Yu 12 Jan '24

12 Jan '24

From: Konstantin Meskhidze <konstantin.meskhidze(a)huawei.com> stable inclusion from stable-v5.10.205 commit 7b063c93bece827fde237fae1c101bceeee4e896 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8AS5P CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=… ------------------------- [ Upstream commit dd05484f99d16715a88eedfca363828ef9a4c2d4 ] Buffer 'afmt_status' of size 6 could overflow, since index 'afmt_idx' is checked after access. Fixes: 5cc4e5fc293b ("drm/radeon: Cleanup HDMI audio interrupt handling for evergreen") Co-developed-by: Ivanov Mikhail <ivanov.mikhail1(a)huawei-partners.com> Signed-off-by: Konstantin Meskhidze <konstantin.meskhidze(a)huawei.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Baogen Shang <baogen.shang(a)windriver.com> --- drivers/gpu/drm/radeon/evergreen.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 11e3e99a9f01..96dbf595254c 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -4819,14 +4819,15 @@ int evergreen_irq_process(struct radeon_device *rdev) break; case 44: /* hdmi */ afmt_idx = src_data; - if (!(afmt_status[afmt_idx] & AFMT_AZ_FORMAT_WTRIG)) - DRM_DEBUG("IH: IH event w/o asserted irq bit?\n"); - if (afmt_idx > 5) { DRM_ERROR("Unhandled interrupt: %d %d\n", src_id, src_data); break; } + + if (!(afmt_status[afmt_idx] & AFMT_AZ_FORMAT_WTRIG)) + DRM_DEBUG("IH: IH event w/o asserted irq bit?\n"); + afmt_status[afmt_idx] &= ~AFMT_AZ_FORMAT_WTRIG; queue_hdmi = true; DRM_DEBUG("IH: HDMI%d\n", afmt_idx + 1); -- 2.33.0

2 1

[PATCH OLK-6.6 0/3] sync vgic-its from 5.10 to 6.6
by Jia Qingtong 12 Jan '24

12 Jan '24

sync vgic-its from 5.10 to 6.6 Heyi Guo (1): KVM: arm64: vgic-its: Flush pending LPIs when nuking DT Xiangyou Xie (2): KVM: arm/arm64: vgic-its: Introduce multiple LPI translation caches KVM: arm/arm64: vgic-its: Do not execute invalidate MSI-LPI translation cache on movi command arch/arm64/kvm/vgic/vgic-init.c | 8 +- arch/arm64/kvm/vgic/vgic-its.c | 255 +++++++++++++++++++++----------- include/kvm/arm_vgic.h | 13 +- 3 files changed, 183 insertions(+), 93 deletions(-) base-commit: ea6de9f6732d495c506f9c140b4ec17c957e1b77 -- 2.43.GIT

2 4

[PATCH OLK-6.6 0/3] sync vgic-its from 5.10 to 6.6
by Jia Qingtong 12 Jan '24

12 Jan '24

sync vgic-its from 5.10 to 6.6 Heyi Guo (1): KVM: arm64: vgic-its: Flush pending LPIs when nuking DT Xiangyou Xie (2): KVM: arm/arm64: vgic-its: Introduce multiple LPI translation caches KVM: arm/arm64: vgic-its: Do not execute invalidate MSI-LPI translation cache on movi command arch/arm64/kvm/vgic/vgic-init.c | 8 +- arch/arm64/kvm/vgic/vgic-its.c | 255 +++++++++++++++++++++----------- include/kvm/arm_vgic.h | 13 +- 3 files changed, 183 insertions(+), 93 deletions(-) base-commit: ea6de9f6732d495c506f9c140b4ec17c957e1b77 -- 2.43.GIT

2 4

[PATCH OLK-6.6 V5 00/12] sched: basic infrastructure for scheduler bpf
by Guan Jing 11 Jan '24

11 Jan '24

sched: basic infrastructure for scheduler bpf Guan Jing (12): sched: programmable: Introduce bpf sched sched: programmable: Add a tag for the task sched: programmable: Add a tag for the task group sched: programmable: Add user interface of task group tag sched: programmable: Add user interface of task tag sched: basic infrastructure for scheduler bpf sched: introduce bpf_sched_enable() libbpf: add support for scheduler bpf programs bpftool: recognize scheduler programs sched: programmable: Add hook in select_task_rq_fair() sched: programmable: Add hook in can_migrate_task() openeuler_defconfig: enable CONFIG_BPF_SCHED arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + fs/proc/base.c | 64 ++++++++++++++ include/linux/bpf_sched.h | 50 +++++++++++ include/linux/bpf_types.h | 4 + include/linux/sched.h | 27 ++++++ include/linux/sched_hook_defs.h | 4 + include/uapi/linux/bpf.h | 2 + init/init_task.c | 3 + kernel/bpf/Kconfig | 12 +++ kernel/bpf/btf.c | 1 + kernel/bpf/syscall.c | 27 ++++++ kernel/bpf/trampoline.c | 1 + kernel/bpf/verifier.c | 11 ++- kernel/sched/bpf_sched.c | 64 ++++++++++++++ kernel/sched/build_utility.c | 4 + kernel/sched/core.c | 118 +++++++++++++++++++++++++ kernel/sched/fair.c | 45 ++++++++++ kernel/sched/sched.h | 10 +++ scripts/bpf_doc.py | 2 + tools/include/uapi/linux/bpf.h | 2 + tools/lib/bpf/bpf.c | 1 + tools/lib/bpf/libbpf.c | 23 ++++- tools/lib/bpf/libbpf.h | 2 + tools/lib/bpf/libbpf.map | 1 + 25 files changed, 478 insertions(+), 2 deletions(-) create mode 100644 include/linux/bpf_sched.h create mode 100644 include/linux/sched_hook_defs.h create mode 100644 kernel/sched/bpf_sched.c -- 2.34.1

2 13

[PATCH OLK-6.6 0/3] kabi reserve for gmem
by Wupeng Ma 11 Jan '24

11 Jan '24

From: Ma Wupeng <mawupeng1(a)huawei.com> Reserve kabi in preparation for gmem. Ma Wupeng (3): mm: gmem: kabi reserve for gmem mm: gmem: Introduce new node state N_HETEROGENEOUS openeuler_defconfig: enable CONFIG_GMEM by default arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/base/node.c | 6 ++++++ include/linux/device.h | 4 ++++ include/linux/mm.h | 8 ++++++++ include/linux/mm_types.h | 5 +++++ include/linux/nodemask.h | 3 +++ mm/Kconfig | 14 ++++++++++++++ mm/page_alloc.c | 3 +++ 9 files changed, 45 insertions(+) -- 2.25.1

2 4

[PATCH OLK-6.6 00/11] Support feature pv-qspinlock and pv-sched
by lishusen 11 Jan '24

11 Jan '24

Support feature pv-qspinlock and pv-sched after pv.ops removed Zengruan Ye (10): KVM: arm64: Document PV-sched interface KVM: arm64: Implement PV_SCHED_FEATURES call KVM: arm64: Support pvsched preempted via shared structure KVM: arm64: Add interface to support vCPU preempted check KVM: arm64: Support the vCPU preemption check KVM: arm64: Add SMCCC PV-sched to kick cpu KVM: arm64: Implement PV_SCHED_KICK_CPU call KVM: arm64: Add interface to support PV qspinlock KVM: arm64: Enable PV qspinlock KVM: arm64: Add tracepoints for PV qspinlock lishusen (1): KVM: arm64: Replace pv.ops by static_call for PV qspinlock feature Documentation/virt/kvm/arm/pvsched.rst | 74 +++++++++ arch/arm64/Kconfig | 13 ++ arch/arm64/include/asm/Kbuild | 1 - arch/arm64/include/asm/kvm_host.h | 20 +++ arch/arm64/include/asm/paravirt.h | 44 +++++ arch/arm64/include/asm/pvsched-abi.h | 16 ++ arch/arm64/include/asm/qspinlock.h | 48 ++++++ arch/arm64/include/asm/qspinlock_paravirt.h | 12 ++ arch/arm64/include/asm/spinlock.h | 13 ++ arch/arm64/kernel/Makefile | 3 +- arch/arm64/kernel/paravirt-spinlocks.c | 21 +++ arch/arm64/kernel/paravirt.c | 174 ++++++++++++++++++++ arch/arm64/kernel/setup.c | 2 + arch/arm64/kernel/trace-paravirt.h | 66 ++++++++ arch/arm64/kvm/Makefile | 2 +- arch/arm64/kvm/arm.c | 13 +- arch/arm64/kvm/handle_exit.c | 1 + arch/arm64/kvm/hypercalls.c | 20 +++ arch/arm64/kvm/pvsched.c | 79 +++++++++ arch/arm64/kvm/trace_arm.h | 18 ++ include/linux/arm-smccc.h | 25 +++ include/linux/cpuhotplug.h | 1 + 22 files changed, 662 insertions(+), 4 deletions(-) create mode 100644 Documentation/virt/kvm/arm/pvsched.rst create mode 100644 arch/arm64/include/asm/pvsched-abi.h create mode 100644 arch/arm64/include/asm/qspinlock.h create mode 100644 arch/arm64/include/asm/qspinlock_paravirt.h create mode 100644 arch/arm64/kernel/paravirt-spinlocks.c create mode 100644 arch/arm64/kernel/trace-paravirt.h create mode 100644 arch/arm64/kvm/pvsched.c -- 2.33.0

2 12

[PATCH] Revert "drm/prime: Unexport helpers for fd/handle conversion"
by Chen Haixiang 11 Jan '24

11 Jan '24

From: Felix Kuehling <Felix.Kuehling(a)amd.com> This reverts commit 71a7974ac7019afeec105a54447ae1dc7216cbb3. These helper functions are needed for KFD to export and import DMABufs the right way without duplicating the tracking of DMABufs associated with GEM objects while ensuring that move notifier callbacks are working as intended. CC: Christian König <christian.koenig(a)amd.com> CC: Thomas Zimmermann <tzimmermann(a)suse.de> Acked-by: Thomas Zimmermann <tzimmermann(a)suse.de> Acked-by: Daniel Vetter <daniel(a)ffwll.ch> Signed-off-by: Felix Kuehling <Felix.Kuehling(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> --- drivers/gpu/drm/drm_prime.c | 33 ++++++++++++++++++--------------- include/drm/drm_prime.h | 7 +++++++ 2 files changed, 25 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c index 63b709a67471..834a5e28abbe 100644 --- a/drivers/gpu/drm/drm_prime.c +++ b/drivers/gpu/drm/drm_prime.c @@ -278,7 +278,7 @@ void drm_gem_dmabuf_release(struct dma_buf *dma_buf) } EXPORT_SYMBOL(drm_gem_dmabuf_release); -/* +/** * drm_gem_prime_fd_to_handle - PRIME import function for GEM drivers * @dev: drm_device to import into * @file_priv: drm file-private structure @@ -292,9 +292,9 @@ EXPORT_SYMBOL(drm_gem_dmabuf_release); * * Returns 0 on success or a negative error code on failure. */ -static int drm_gem_prime_fd_to_handle(struct drm_device *dev, - struct drm_file *file_priv, int prime_fd, - uint32_t *handle) +int drm_gem_prime_fd_to_handle(struct drm_device *dev, + struct drm_file *file_priv, int prime_fd, + uint32_t *handle) { struct dma_buf *dma_buf; struct drm_gem_object *obj; @@ -360,6 +360,7 @@ static int drm_gem_prime_fd_to_handle(struct drm_device *dev, dma_buf_put(dma_buf); return ret; } +EXPORT_SYMBOL(drm_gem_prime_fd_to_handle); int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) @@ -408,7 +409,7 @@ static struct dma_buf *export_and_register_object(struct drm_device *dev, return dmabuf; } -/* +/** * drm_gem_prime_handle_to_fd - PRIME export function for GEM drivers * @dev: dev to export the buffer from * @file_priv: drm file-private structure @@ -421,10 +422,10 @@ static struct dma_buf *export_and_register_object(struct drm_device *dev, * The actual exporting from GEM object to a dma-buf is done through the * &drm_gem_object_funcs.export callback. */ -static int drm_gem_prime_handle_to_fd(struct drm_device *dev, - struct drm_file *file_priv, uint32_t handle, - uint32_t flags, - int *prime_fd) +int drm_gem_prime_handle_to_fd(struct drm_device *dev, + struct drm_file *file_priv, uint32_t handle, + uint32_t flags, + int *prime_fd) { struct drm_gem_object *obj; int ret = 0; @@ -506,6 +507,7 @@ static int drm_gem_prime_handle_to_fd(struct drm_device *dev, return ret; } +EXPORT_SYMBOL(drm_gem_prime_handle_to_fd); int drm_prime_handle_to_fd_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) @@ -864,9 +866,9 @@ EXPORT_SYMBOL(drm_prime_get_contiguous_size); * @obj: GEM object to export * @flags: flags like DRM_CLOEXEC and DRM_RDWR * - * This is the implementation of the &drm_gem_object_funcs.export functions - * for GEM drivers using the PRIME helpers. It is used as the default for - * drivers that do not set their own. + * This is the implementation of the &drm_gem_object_funcs.export functions for GEM drivers + * using the PRIME helpers. It is used as the default in + * drm_gem_prime_handle_to_fd(). */ struct dma_buf *drm_gem_prime_export(struct drm_gem_object *obj, int flags) @@ -962,9 +964,10 @@ EXPORT_SYMBOL(drm_gem_prime_import_dev); * @dev: drm_device to import into * @dma_buf: dma-buf object to import * - * This is the implementation of the gem_prime_import functions for GEM - * drivers using the PRIME helpers. It is the default for drivers that do - * not set their own &drm_driver.gem_prime_import. + * This is the implementation of the gem_prime_import functions for GEM drivers + * using the PRIME helpers. Drivers can use this as their + * &drm_driver.gem_prime_import implementation. It is used as the default + * implementation in drm_gem_prime_fd_to_handle(). * * Drivers must arrange to call drm_prime_gem_destroy() from their * &drm_gem_object_funcs.free hook when using this function. diff --git a/include/drm/drm_prime.h b/include/drm/drm_prime.h index a7abf9f3e697..2a1d01e5b56b 100644 --- a/include/drm/drm_prime.h +++ b/include/drm/drm_prime.h @@ -60,12 +60,19 @@ enum dma_data_direction; struct drm_device; struct drm_gem_object; +struct drm_file; /* core prime functions */ struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev, struct dma_buf_export_info *exp_info); void drm_gem_dmabuf_release(struct dma_buf *dma_buf); +int drm_gem_prime_fd_to_handle(struct drm_device *dev, + struct drm_file *file_priv, int prime_fd, uint32_t *handle); +int drm_gem_prime_handle_to_fd(struct drm_device *dev, + struct drm_file *file_priv, uint32_t handle, uint32_t flags, + int *prime_fd); + /* helper functions for exporting */ int drm_gem_map_attach(struct dma_buf *dma_buf, struct dma_buf_attachment *attach); -- 2.33.0

1 0