diff options
| author | Kan Liang <kan.liang@linux.intel.com> | 2025-07-07 13:17:48 -0700 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2025-07-09 13:40:19 +0200 |
| commit | fca24bf2b6b619770d7f1222c0284791d7766239 (patch) | |
| tree | 21594716e555aa798247cf4e9c5b46b15255b003 | |
| parent | cf002dafedd06241175e4dbce39ba90a4b75822c (diff) | |
perf/x86/intel/uncore: Support customized MMIO map size
For a server platform, the MMIO map size is always 0x4000. However, a
client platform may have a smaller map size.
Make the map size customizable.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Link: https://lore.kernel.org/r/20250707201750.616527-3-kan.liang@linux.intel.com
| -rw-r--r-- | arch/x86/events/intel/uncore_discovery.c | 2 | ||||
| -rw-r--r-- | arch/x86/events/intel/uncore_snbep.c | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/events/intel/uncore_discovery.c b/arch/x86/events/intel/uncore_discovery.c index 9a78a31072df..7d57ce706feb 100644 --- a/arch/x86/events/intel/uncore_discovery.c +++ b/arch/x86/events/intel/uncore_discovery.c @@ -651,7 +651,7 @@ void intel_generic_uncore_mmio_init_box(struct intel_uncore_box *box) } addr = unit->addr; - box->io_addr = ioremap(addr, UNCORE_GENERIC_MMIO_SIZE); + box->io_addr = ioremap(addr, type->mmio_map_size); if (!box->io_addr) { pr_warn("Uncore type %d box %d: ioremap error for 0x%llx.\n", type->type_id, unit->id, (unsigned long long)addr); diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c index 2824dc9950be..3a6543159fab 100644 --- a/arch/x86/events/intel/uncore_snbep.c +++ b/arch/x86/events/intel/uncore_snbep.c @@ -6409,6 +6409,8 @@ static void uncore_type_customized_copy(struct intel_uncore_type *to_type, to_type->get_topology = from_type->get_topology; if (from_type->cleanup_mapping) to_type->cleanup_mapping = from_type->cleanup_mapping; + if (from_type->mmio_map_size) + to_type->mmio_map_size = from_type->mmio_map_size; } static struct intel_uncore_type ** |