diff options
| author | Ingo Molnar <mingo@kernel.org> | 2024-03-12 09:49:52 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2024-03-12 09:55:57 +0100 |
| commit | 2e2bc42c8381d2c0e9604b59e49264821da29368 (patch) | |
| tree | c158510b5e7942b3a0d6eb6807cbeacf96035798 /kernel/irq/matrix.c | |
| parent | 428080c9b19bfda37c478cd626dbd3851db1aff9 (diff) | |
| parent | 855684c7d938c2442f07eabc154e7532b4c1fbf9 (diff) | |
Merge branch 'linus' into x86/boot, to resolve conflict
There's a new conflict with Linus's upstream tree, because
in the following merge conflict resolution in <asm/coco.h>:
38b334fc767e Merge tag 'x86_sev_for_v6.9_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Linus has resolved the conflicting placement of 'cc_mask' better
than the original commit:
1c811d403afd x86/sev: Fix position dependent variable references in startup code
... which was also done by an internal merge resolution:
2e5fc4786b7a Merge branch 'x86/sev' into x86/boot, to resolve conflicts and to pick up dependent tree
But Linus is right in 38b334fc767e, the 'cc_mask' declaration is sufficient
within the #ifdef CONFIG_ARCH_HAS_CC_PLATFORM block.
So instead of forcing Linus to do the same resolution again, merge in Linus's
tree and follow his conflict resolution.
Conflicts:
arch/x86/include/asm/coco.h
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/irq/matrix.c')
| -rw-r--r-- | kernel/irq/matrix.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/kernel/irq/matrix.c b/kernel/irq/matrix.c index 75d0ae490e29..8f222d1cccec 100644 --- a/kernel/irq/matrix.c +++ b/kernel/irq/matrix.c @@ -8,8 +8,6 @@ #include <linux/cpu.h> #include <linux/irq.h> -#define IRQ_MATRIX_SIZE (BITS_TO_LONGS(IRQ_MATRIX_BITS)) - struct cpumap { unsigned int available; unsigned int allocated; @@ -17,8 +15,8 @@ struct cpumap { unsigned int managed_allocated; bool initialized; bool online; - unsigned long alloc_map[IRQ_MATRIX_SIZE]; - unsigned long managed_map[IRQ_MATRIX_SIZE]; + unsigned long *managed_map; + unsigned long alloc_map[]; }; struct irq_matrix { @@ -32,8 +30,8 @@ struct irq_matrix { unsigned int total_allocated; unsigned int online_maps; struct cpumap __percpu *maps; - unsigned long scratch_map[IRQ_MATRIX_SIZE]; - unsigned long system_map[IRQ_MATRIX_SIZE]; + unsigned long *system_map; + unsigned long scratch_map[]; }; #define CREATE_TRACE_POINTS @@ -50,24 +48,32 @@ __init struct irq_matrix *irq_alloc_matrix(unsigned int matrix_bits, unsigned int alloc_start, unsigned int alloc_end) { + unsigned int cpu, matrix_size = BITS_TO_LONGS(matrix_bits); struct irq_matrix *m; - if (matrix_bits > IRQ_MATRIX_BITS) - return NULL; - - m = kzalloc(sizeof(*m), GFP_KERNEL); + m = kzalloc(struct_size(m, scratch_map, matrix_size * 2), GFP_KERNEL); if (!m) return NULL; + m->system_map = &m->scratch_map[matrix_size]; + m->matrix_bits = matrix_bits; m->alloc_start = alloc_start; m->alloc_end = alloc_end; m->alloc_size = alloc_end - alloc_start; - m->maps = alloc_percpu(*m->maps); + m->maps = __alloc_percpu(struct_size(m->maps, alloc_map, matrix_size * 2), + __alignof__(*m->maps)); if (!m->maps) { kfree(m); return NULL; } + + for_each_possible_cpu(cpu) { + struct cpumap *cm = per_cpu_ptr(m->maps, cpu); + + cm->managed_map = &cm->alloc_map[matrix_size]; + } + return m; } |