diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst index 9844ca3a71a6..c76b02d94094 100644 --- a/Documentation/process/changes.rst +++ b/Documentation/process/changes.rst @@ -60,6 +60,7 @@ openssl & libcrypto 1.0.0 openssl version bc 1.06.95 bc --version Sphinx\ [#f1]_ 1.7 sphinx-build --version cpio any cpio --version +gtags (optional) 6.6.5 gtags --version ====================== =============== ========================================

.. [#f1] Sphinx is needed only to build the Kernel documentation @@ -174,6 +175,12 @@ You will need openssl to build kernels 3.7 and higher if module signing is enabled. You will also need openssl development packages to build kernels 4.3 and higher.

+gtags / GNU GLOBAL (optional) +----------------------------- + +The kernel build requires GNU GLOBAL version 6.6.5 or later to generate +tag files through ``make gtags``. This is due to its use of the gtags +``-C (--directory)`` flag.

System utilities **************** diff --git a/Makefile b/Makefile index 26d73ce7e926..57c891b8b13c 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 VERSION = 6 PATCHLEVEL = 1 -SUBLEVEL = 37 +SUBLEVEL = 38 EXTRAVERSION = NAME = Curry Ramen

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 003aa9e47085..5a8a4cda7e98 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -2363,6 +2363,10 @@ int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) long timeout = msecs_to_jiffies(2000); int r;

+ /* No valid flags defined yet */ + if (args->in.flags) + return -EINVAL; + switch (args->in.op) { case AMDGPU_VM_OP_RESERVE_VMID: /* We only have requirement to reserve vmid from gfxhub */ diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index af7aefe285ff..087a4838488b 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -401,8 +401,13 @@ bool dc_stream_adjust_vmin_vmax(struct dc *dc, { int i;

- if (memcmp(adjust, &stream->adjust, sizeof(struct dc_crtc_timing_adjust)) == 0) - return true; + /* + * Don't adjust DRR while there's bandwidth optimizations pending to + * avoid conflicting with firmware updates. + */ + if (dc->ctx->dce_version > DCE_VERSION_MAX) + if (dc->optimized_required || dc->wm_optimized_required) + return false;

stream->adjust.v_total_max = adjust->v_total_max; stream->adjust.v_total_mid = adjust->v_total_mid; @@ -2024,27 +2029,33 @@ void dc_post_update_surfaces_to_stream(struct dc *dc)

post_surface_trace(dc);

- if (dc->ctx->dce_version >= DCE_VERSION_MAX) - TRACE_DCN_CLOCK_STATE(&context->bw_ctx.bw.dcn.clk); - else + /* + * Only relevant for DCN behavior where we can guarantee the optimization + * is safe to apply - retain the legacy behavior for DCE. + */ + + if (dc->ctx->dce_version < DCE_VERSION_MAX) TRACE_DCE_CLOCK_STATE(&context->bw_ctx.bw.dce); + else { + TRACE_DCN_CLOCK_STATE(&context->bw_ctx.bw.dcn.clk);

- if (is_flip_pending_in_pipes(dc, context)) - return; + if (is_flip_pending_in_pipes(dc, context)) + return;

- for (i = 0; i < dc->res_pool->pipe_count; i++) - if (context->res_ctx.pipe_ctx[i].stream == NULL || - context->res_ctx.pipe_ctx[i].plane_state == NULL) { - context->res_ctx.pipe_ctx[i].pipe_idx = i; - dc->hwss.disable_plane(dc, &context->res_ctx.pipe_ctx[i]); - } + for (i = 0; i < dc->res_pool->pipe_count; i++) + if (context->res_ctx.pipe_ctx[i].stream == NULL || + context->res_ctx.pipe_ctx[i].plane_state == NULL) { + context->res_ctx.pipe_ctx[i].pipe_idx = i; + dc->hwss.disable_plane(dc, &context->res_ctx.pipe_ctx[i]); + }

- process_deferred_updates(dc); + process_deferred_updates(dc);

- dc->hwss.optimize_bandwidth(dc, context); + dc->hwss.optimize_bandwidth(dc, context);

- if (dc->debug.enable_double_buffered_dsc_pg_support) - dc->hwss.update_dsc_pg(dc, context, true); + if (dc->debug.enable_double_buffered_dsc_pg_support) + dc->hwss.update_dsc_pg(dc, context, true); + }

dc->optimized_required = false; dc->wm_optimized_required = false; @@ -3869,12 +3880,9 @@ void dc_commit_updates_for_stream(struct dc *dc, if (new_pipe->plane_state && new_pipe->plane_state != old_pipe->plane_state) new_pipe->plane_state->force_full_update = true; } - } else if (update_type == UPDATE_TYPE_FAST && dc_ctx->dce_version >= DCE_VERSION_MAX) { + } else if (update_type == UPDATE_TYPE_FAST) { /* * Previous frame finished and HW is ready for optimization. - * - * Only relevant for DCN behavior where we can guarantee the optimization - * is safe to apply - retain the legacy behavior for DCE. */ dc_post_update_surfaces_to_stream(dc); } diff --git a/drivers/nubus/proc.c b/drivers/nubus/proc.c index 1fd667852271..cd4bd06cf309 100644 --- a/drivers/nubus/proc.c +++ b/drivers/nubus/proc.c @@ -137,6 +137,18 @@ static int nubus_proc_rsrc_show(struct seq_file *m, void *v) return 0; }

+static int nubus_rsrc_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, nubus_proc_rsrc_show, inode); +} + +static const struct proc_ops nubus_rsrc_proc_ops = { + .proc_open = nubus_rsrc_proc_open, + .proc_read = seq_read, + .proc_lseek = seq_lseek, + .proc_release = single_release, +}; + void nubus_proc_add_rsrc_mem(struct proc_dir_entry *procdir, const struct nubus_dirent *ent, unsigned int size) @@ -152,8 +164,8 @@ void nubus_proc_add_rsrc_mem(struct proc_dir_entry *procdir, pded = nubus_proc_alloc_pde_data(nubus_dirptr(ent), size); else pded = NULL; - proc_create_single_data(name, S_IFREG | 0444, procdir, - nubus_proc_rsrc_show, pded); + proc_create_data(name, S_IFREG | 0444, procdir, + &nubus_rsrc_proc_ops, pded); }

void nubus_proc_add_rsrc(struct proc_dir_entry *procdir, @@ -166,9 +178,9 @@ void nubus_proc_add_rsrc(struct proc_dir_entry *procdir, return;

snprintf(name, sizeof(name), "%x", ent->type); - proc_create_single_data(name, S_IFREG | 0444, procdir, - nubus_proc_rsrc_show, - nubus_proc_alloc_pde_data(data, 0)); + proc_create_data(name, S_IFREG | 0444, procdir, + &nubus_rsrc_proc_ops, + nubus_proc_alloc_pde_data(data, 0)); }

/* diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 1698205dd73c..7aa1c20582ab 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -1043,6 +1043,16 @@ bool acpi_pci_bridge_d3(struct pci_dev *dev) return false; }

+static void acpi_pci_config_space_access(struct pci_dev *dev, bool enable) +{ + int val = enable ? ACPI_REG_CONNECT : ACPI_REG_DISCONNECT; + int ret = acpi_evaluate_reg(ACPI_HANDLE(&dev->dev), + ACPI_ADR_SPACE_PCI_CONFIG, val); + if (ret) + pci_dbg(dev, "ACPI _REG %s evaluation failed (%d)\n", + enable ? "connect" : "disconnect", ret); +} + int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) { struct acpi_device *adev = ACPI_COMPANION(&dev->dev); @@ -1053,32 +1063,49 @@ int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) [PCI_D3hot] = ACPI_STATE_D3_HOT, [PCI_D3cold] = ACPI_STATE_D3_COLD, }; - int error = -EINVAL; + int error;

/* If the ACPI device has _EJ0, ignore the device */ if (!adev || acpi_has_method(adev->handle, "_EJ0")) return -ENODEV;

switch (state) { - case PCI_D3cold: - if (dev_pm_qos_flags(&dev->dev, PM_QOS_FLAG_NO_POWER_OFF) == - PM_QOS_FLAGS_ALL) { - error = -EBUSY; - break; - } - fallthrough; case PCI_D0: case PCI_D1: case PCI_D2: case PCI_D3hot: - error = acpi_device_set_power(adev, state_conv[state]); + case PCI_D3cold: + break; + default: + return -EINVAL; + } + + if (state == PCI_D3cold) { + if (dev_pm_qos_flags(&dev->dev, PM_QOS_FLAG_NO_POWER_OFF) == + PM_QOS_FLAGS_ALL) + return -EBUSY; + + /* Notify AML lack of PCI config space availability */ + acpi_pci_config_space_access(dev, false); }

- if (!error) - pci_dbg(dev, "power state changed by ACPI to %s\n", - acpi_power_state_string(adev->power.state)); + error = acpi_device_set_power(adev, state_conv[state]); + if (error) + return error;

- return error; + pci_dbg(dev, "power state changed by ACPI to %s\n", + acpi_power_state_string(adev->power.state)); + + /* + * Notify AML of PCI config space availability. Config space is + * accessible in all states except D3cold; the only transitions + * that change availability are transitions to D3cold and from + * D3cold to D0. + */ + if (state == PCI_D0) + acpi_pci_config_space_access(dev, true); + + return 0; }

pci_power_t acpi_pci_get_power_state(struct pci_dev *dev) diff --git a/include/linux/mm.h b/include/linux/mm.h index f5b6ef943ede..b8ed44f401b5 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -378,7 +378,7 @@ extern unsigned int kobjsize(const void *objp); #endif /* CONFIG_HAVE_ARCH_USERFAULTFD_MINOR */

/* Bits set in the VMA until the stack is in its final location */ -#define VM_STACK_INCOMPLETE_SETUP (VM_RAND_READ | VM_SEQ_READ) +#define VM_STACK_INCOMPLETE_SETUP (VM_RAND_READ | VM_SEQ_READ | VM_STACK_EARLY)

#define TASK_EXEC ((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0)

@@ -400,8 +400,10 @@ extern unsigned int kobjsize(const void *objp);

#ifdef CONFIG_STACK_GROWSUP #define VM_STACK VM_GROWSUP +#define VM_STACK_EARLY VM_GROWSDOWN #else #define VM_STACK VM_GROWSDOWN +#define VM_STACK_EARLY 0 #endif

#define VM_STACK_FLAGS (VM_STACK | VM_STACK_DEFAULT_FLAGS | VM_ACCOUNT) diff --git a/mm/nommu.c b/mm/nommu.c index da26b3fec9eb..8e8fe491d914 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -688,8 +688,13 @@ EXPORT_SYMBOL(find_vma); struct vm_area_struct *lock_mm_and_find_vma(struct mm_struct *mm, unsigned long addr, struct pt_regs *regs) { + struct vm_area_struct *vma; + mmap_read_lock(mm); - return vma_lookup(mm, addr); + vma = vma_lookup(mm, addr); + if (!vma) + mmap_read_unlock(mm); + return vma; }

/* diff --git a/scripts/tags.sh b/scripts/tags.sh index 0d045182c08c..f23b9b7ed015 100755 --- a/scripts/tags.sh +++ b/scripts/tags.sh @@ -25,6 +25,13 @@ else tree=${srctree}/ fi

+# gtags(1) refuses to index any file outside of its current working dir. +# If gtags indexing is requested and the build output directory is not +# the kernel source tree, index all files in absolute-path form. +if [[ "$1" == "gtags" && -n "${tree}" ]]; then + tree=$(realpath "$tree")/ +fi + # Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH if [ "${ALLSOURCE_ARCHS}" = "" ]; then ALLSOURCE_ARCHS=${SRCARCH} @@ -124,7 +131,7 @@ docscope()

dogtags() { - all_target_sources | gtags -i -f - + all_target_sources | gtags -i -C "${tree:-.}" -f - "$PWD" }

# Basic regular expressions with an optional /kind-spec/ for ctags and diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index a3a165ae933a..98014f937568 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -1368,10 +1368,23 @@ static int dso__load_kcore(struct dso *dso, struct map *map,

/* Find the kernel map using the '_stext' symbol */ if (!kallsyms__get_function_start(kallsyms_filename, "_stext", &stext)) { + u64 replacement_size = 0; + list_for_each_entry(new_map, &md.maps, node) { - if (stext >= new_map->start && stext < new_map->end) { + u64 new_size = new_map->end - new_map->start; + + if (!(stext >= new_map->start && stext < new_map->end)) + continue; + + /* + * On some architectures, ARM64 for example, the kernel + * text can get allocated inside of the vmalloc segment. + * Select the smallest matching segment, in case stext + * falls within more than one in the list. + */ + if (!replacement_map || new_size < replacement_size) { replacement_map = new_map; - break; + replacement_size = new_size; } } }