January 2024 - Patch2pr - mailweb.openeuler.org

[PATCH OLK-5.10] drm/amd/display: Exit idle optimizations before attempt to access PHY
by Fu Yong 16 Jan '24

16 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

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[PATCH OLK-6.6 0/1] Add config isolation for random
by Fu Yong 16 Jan '24

16 Jan '24

From: Zheng Zengkai <zhengzengkai(a)huawei.com> This patch adds config isolating random bootup initialization optimization as it is required for all home-developed patches. v2: Fixed commit message. GUO Zihua (1): random: Added config for random boot optimization arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/char/random.c | 4 ++++ init/Kconfig | 11 +++++++++++ 4 files changed, 17 insertions(+) -- 2.25.1

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[PATCH OLK-6.6 0/1] Add config isolation for random
by Fu Yong 16 Jan '24

16 Jan '24

From: Zheng Zengkai <zhengzengkai(a)huawei.com> This patch adds config isolating random bootup initialization optimization as it is required for all home-developed patches. v2: Fixed commit message. GUO Zihua (1): random: Added config for random boot optimization arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/char/random.c | 4 ++++ init/Kconfig | 11 +++++++++++ 4 files changed, 17 insertions(+) -- 2.25.1

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[PATCH OLK-6.6 01/10] fs: Convert to bdev_open_by_dev()
by Fu Yong 16 Jan '24

16 Jan '24

From: Jan Kara <jack(a)suse.cz> Convert mount code to use bdev_open_by_dev() and propagate the handle around to bdev_release(). Acked-by: Christoph Hellwig <hch(a)lst.de> Reviewed-by: Christian Brauner <brauner(a)kernel.org> Signed-off-by: Jan Kara <jack(a)suse.cz> Link: https://lore.kernel.org/r/20230927093442.25915-19-jack@suse.cz Signed-off-by: Christian Brauner <brauner(a)kernel.org> --- fs/cramfs/inode.c | 2 +- fs/romfs/super.c | 2 +- fs/super.c | 15 +++++++++------ include/linux/fs.h | 1 + 4 files changed, 12 insertions(+), 8 deletions(-) diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index 5ee7d7bbb361..2fbf97077ce9 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -495,7 +495,7 @@ static void cramfs_kill_sb(struct super_block *sb) sb->s_mtd = NULL; } else if (IS_ENABLED(CONFIG_CRAMFS_BLOCKDEV) && sb->s_bdev) { sync_blockdev(sb->s_bdev); - blkdev_put(sb->s_bdev, sb); + bdev_release(sb->s_bdev_handle); } kfree(sbi); } diff --git a/fs/romfs/super.c b/fs/romfs/super.c index 5c35f6c76037..b1bdfbc211c3 100644 --- a/fs/romfs/super.c +++ b/fs/romfs/super.c @@ -593,7 +593,7 @@ static void romfs_kill_sb(struct super_block *sb) #ifdef CONFIG_ROMFS_ON_BLOCK if (sb->s_bdev) { sync_blockdev(sb->s_bdev); - blkdev_put(sb->s_bdev, sb); + bdev_release(sb->s_bdev_handle); } #endif } diff --git a/fs/super.c b/fs/super.c index 2d762ce67f6e..26b96191e9b3 100644 --- a/fs/super.c +++ b/fs/super.c @@ -1479,14 +1479,16 @@ int setup_bdev_super(struct super_block *sb, int sb_flags, struct fs_context *fc) { blk_mode_t mode = sb_open_mode(sb_flags); + struct bdev_handle *bdev_handle; struct block_device *bdev; - bdev = blkdev_get_by_dev(sb->s_dev, mode, sb, &fs_holder_ops); - if (IS_ERR(bdev)) { + bdev_handle = bdev_open_by_dev(sb->s_dev, mode, sb, &fs_holder_ops); + if (IS_ERR(bdev_handle)) { if (fc) errorf(fc, "%s: Can't open blockdev", fc->source); - return PTR_ERR(bdev); + return PTR_ERR(bdev_handle); } + bdev = bdev_handle->bdev; /* * This really should be in blkdev_get_by_dev, but right now can't due @@ -1494,7 +1496,7 @@ int setup_bdev_super(struct super_block *sb, int sb_flags, * writable from userspace even for a read-only block device. */ if ((mode & BLK_OPEN_WRITE) && bdev_read_only(bdev)) { - blkdev_put(bdev, sb); + bdev_release(bdev_handle); return -EACCES; } @@ -1510,10 +1512,11 @@ int setup_bdev_super(struct super_block *sb, int sb_flags, mutex_unlock(&bdev->bd_fsfreeze_mutex); if (fc) warnf(fc, "%pg: Can't mount, blockdev is frozen", bdev); - blkdev_put(bdev, sb); + bdev_release(bdev_handle); return -EBUSY; } spin_lock(&sb_lock); + sb->s_bdev_handle = bdev_handle; sb->s_bdev = bdev; sb->s_bdi = bdi_get(bdev->bd_disk->bdi); if (bdev_stable_writes(bdev)) @@ -1646,7 +1649,7 @@ void kill_block_super(struct super_block *sb) generic_shutdown_super(sb); if (bdev) { sync_blockdev(bdev); - blkdev_put(bdev, sb); + bdev_release(sb->s_bdev_handle); } } diff --git a/include/linux/fs.h b/include/linux/fs.h index 4a40823c3c67..fb5accebdcdf 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1221,6 +1221,7 @@ struct super_block { struct hlist_bl_head s_roots; /* alternate root dentries for NFS */ struct list_head s_mounts; /* list of mounts; _not_ for fs use */ struct block_device *s_bdev; + struct bdev_handle *s_bdev_handle; struct backing_dev_info *s_bdi; struct mtd_info *s_mtd; struct hlist_node s_instances; -- 2.25.1

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[PATCH OLK-6.6 00/10] OLK-6.6 patch2pr test
by Fu Yong 16 Jan '24

16 Jan '24

From: Zheng Zengkai <zhengzengkai(a)huawei.com> OLK-6.6 patch2pr test Jan Kara (10): fs: Convert to bdev_open_by_dev() btrfs: Convert to bdev_open_by_path() erofs: Convert to use bdev_open_by_path() ext4: Convert to bdev_open_by_dev() f2fs: Convert to bdev_open_by_dev/path() jfs: Convert to bdev_open_by_dev() nfs/blocklayout: Convert to use bdev_open_by_dev/path() ocfs2: Convert to use bdev_open_by_dev() reiserfs: Convert to bdev_open_by_dev/path() xfs: Convert to bdev_open_by_path() fs/btrfs/dev-replace.c | 14 ++-- fs/btrfs/ioctl.c | 18 +++--- fs/btrfs/volumes.c | 107 ++++++++++++++++--------------- fs/btrfs/volumes.h | 6 +- fs/cramfs/inode.c | 2 +- fs/erofs/data.c | 4 +- fs/erofs/internal.h | 2 +- fs/erofs/super.c | 20 +++--- fs/ext4/ext4.h | 2 +- fs/ext4/fsmap.c | 9 +-- fs/ext4/super.c | 52 +++++++-------- fs/f2fs/f2fs.h | 1 + fs/f2fs/super.c | 13 ++-- fs/jfs/jfs_logmgr.c | 29 +++++---- fs/jfs/jfs_logmgr.h | 2 +- fs/jfs/jfs_mount.c | 3 +- fs/nfs/blocklayout/blocklayout.h | 2 +- fs/nfs/blocklayout/dev.c | 76 +++++++++++----------- fs/ocfs2/cluster/heartbeat.c | 81 ++++++++++++----------- fs/reiserfs/journal.c | 56 ++++++++-------- fs/reiserfs/procfs.c | 2 +- fs/reiserfs/reiserfs.h | 11 ++-- fs/romfs/super.c | 2 +- fs/super.c | 15 +++-- fs/xfs/xfs_buf.c | 22 +++---- fs/xfs/xfs_buf.h | 3 +- fs/xfs/xfs_super.c | 42 ++++++------ include/linux/fs.h | 1 + 28 files changed, 309 insertions(+), 288 deletions(-) -- 2.25.1

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[PATCH OLK-6.6 1/1] random: Added config for random boot optimization
by Fu Yong 16 Jan '24

16 Jan '24

From: GUO Zihua <guozihua(a)huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I8K30G -------------------------------- Add a config isolation for random bootup initialization optimization. Signed-off-by: GUO Zihua <guozihua(a)huawei.com> --- arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/char/random.c | 4 ++++ init/Kconfig | 11 +++++++++++ 4 files changed, 17 insertions(+) diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index 9d2f717c1f7c..e853e2fe5d24 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -7830,6 +7830,7 @@ CONFIG_LOCK_DEBUGGING_SUPPORT=y # CONFIG_DEBUG_IRQFLAGS is not set CONFIG_STACKTRACE=y +CONFIG_RANDOM_BOOT_OPTIMIZATION=y # CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set # CONFIG_DEBUG_KOBJECT is not set diff --git a/arch/x86/configs/openeuler_defconfig b/arch/x86/configs/openeuler_defconfig index b40100e16683..60b6e994b4f1 100644 --- a/arch/x86/configs/openeuler_defconfig +++ b/arch/x86/configs/openeuler_defconfig @@ -9012,6 +9012,7 @@ CONFIG_LOCK_DEBUGGING_SUPPORT=y # CONFIG_NMI_CHECK_CPU is not set # CONFIG_DEBUG_IRQFLAGS is not set CONFIG_STACKTRACE=y +CONFIG_RANDOM_BOOT_OPTIMIZATION=y # CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set # CONFIG_DEBUG_KOBJECT is not set diff --git a/drivers/char/random.c b/drivers/char/random.c index b9ae54c243a9..2f31586d4188 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1100,8 +1100,12 @@ void add_interrupt_randomness(int irq) if (new_count & MIX_INFLIGHT) return; +#ifdef CONFIG_RANDOM_BOOT_OPTIMIZATION if (new_count < 1024 && !time_is_before_jiffies(fast_pool->last + HZ) && crng_ready()) +#else + if (new_count < 1024 && !time_is_before_jiffies(fast_pool->last + HZ)) +#endif return; fast_pool->count |= MIX_INFLIGHT; diff --git a/init/Kconfig b/init/Kconfig index 6d35728b94b2..c8cd6af80337 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1984,3 +1984,14 @@ config ARCH_HAS_SYNC_CORE_BEFORE_USERMODE # <asm/syscall_wrapper.h>. config ARCH_HAS_SYSCALL_WRAPPER def_bool n + +config RANDOM_BOOT_OPTIMIZATION + bool "Random initialization optimization during bootup" + default n + help + Enable optimization on random bootup initialization. It is tested + to provide an optimization of up to 60%. + + It works by disabling batching of interrupt randomness events + during boot time, allowing interrupt related entropy to flow in + at a higher rate. -- 2.25.1

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[PATCH OLK-6.6 0/1] Add config isolation for random
by Fu Yong 16 Jan '24

16 Jan '24

From: Zheng Zengkai <zhengzengkai(a)huawei.com> This patch adds config isolating random bootup initialization optimization as it is required for all home-developed patches. v2: Fixed commit message. GUO Zihua (1): random: Added config for random boot optimization arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/char/random.c | 4 ++++ init/Kconfig | 11 +++++++++++ 4 files changed, 17 insertions(+) -- 2.25.1

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[PATCH OLK-6.6 1/1] random: Added config for random boot optimization
by Fu Yong 16 Jan '24

16 Jan '24

From: GUO Zihua <guozihua(a)huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I8K30G -------------------------------- Add a config isolation for random bootup initialization optimization. Signed-off-by: GUO Zihua <guozihua(a)huawei.com> --- arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/char/random.c | 4 ++++ init/Kconfig | 11 +++++++++++ 4 files changed, 17 insertions(+) diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index 9d2f717c1f7c..e853e2fe5d24 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -7830,6 +7830,7 @@ CONFIG_LOCK_DEBUGGING_SUPPORT=y # CONFIG_DEBUG_IRQFLAGS is not set CONFIG_STACKTRACE=y +CONFIG_RANDOM_BOOT_OPTIMIZATION=y # CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set # CONFIG_DEBUG_KOBJECT is not set diff --git a/arch/x86/configs/openeuler_defconfig b/arch/x86/configs/openeuler_defconfig index b40100e16683..60b6e994b4f1 100644 --- a/arch/x86/configs/openeuler_defconfig +++ b/arch/x86/configs/openeuler_defconfig @@ -9012,6 +9012,7 @@ CONFIG_LOCK_DEBUGGING_SUPPORT=y # CONFIG_NMI_CHECK_CPU is not set # CONFIG_DEBUG_IRQFLAGS is not set CONFIG_STACKTRACE=y +CONFIG_RANDOM_BOOT_OPTIMIZATION=y # CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set # CONFIG_DEBUG_KOBJECT is not set diff --git a/drivers/char/random.c b/drivers/char/random.c index b9ae54c243a9..2f31586d4188 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1100,8 +1100,12 @@ void add_interrupt_randomness(int irq) if (new_count & MIX_INFLIGHT) return; +#ifdef CONFIG_RANDOM_BOOT_OPTIMIZATION if (new_count < 1024 && !time_is_before_jiffies(fast_pool->last + HZ) && crng_ready()) +#else + if (new_count < 1024 && !time_is_before_jiffies(fast_pool->last + HZ)) +#endif return; fast_pool->count |= MIX_INFLIGHT; diff --git a/init/Kconfig b/init/Kconfig index 6d35728b94b2..c8cd6af80337 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1984,3 +1984,14 @@ config ARCH_HAS_SYNC_CORE_BEFORE_USERMODE # <asm/syscall_wrapper.h>. config ARCH_HAS_SYSCALL_WRAPPER def_bool n + +config RANDOM_BOOT_OPTIMIZATION + bool "Random initialization optimization during bootup" + default n + help + Enable optimization on random bootup initialization. It is tested + to provide an optimization of up to 60%. + + It works by disabling batching of interrupt randomness events + during boot time, allowing interrupt related entropy to flow in + at a higher rate. -- 2.25.1

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[PATCH OLK-6.6 0/1] Add config isolation for random
by Fu Yong 16 Jan '24

16 Jan '24

From: Zheng Zengkai <zhengzengkai(a)huawei.com> This patch adds config isolating random bootup initialization optimization as it is required for all home-developed patches. v2: Fixed commit message. GUO Zihua (1): random: Added config for random boot optimization arch/arm64/configs/openeuler_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + drivers/char/random.c | 4 ++++ init/Kconfig | 11 +++++++++++ 4 files changed, 17 insertions(+) -- 2.25.1

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[PATCH OLK-5.10] drm/amd/display: Exit idle optimizations before attempt to access PHY
by Fu Yong 16 Jan '24

16 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

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