dlan17/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

perf/x86/intel/uncore: Support customized MMIO map size

Browse Source 
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
This commit is contained in:
Kan Liang
2025-07-09 13:40:19 +02:00
committed by Peter Zijlstra
parent cf002dafed
commit fca24bf2b6
2 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/x86/events/intel/uncore_discovery.c
+1 -1
View File
@@ -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);
arch/x86/events/intel/uncore_snbep.c
+2
View File
@@ -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 **