diff --git a/src/asahi/compiler/agx_compile.c b/src/asahi/compiler/agx_compile.c
index 5e151e7d858..dcc6b157155 100644
--- a/src/asahi/compiler/agx_compile.c
+++ b/src/asahi/compiler/agx_compile.c
@@ -2123,7 +2123,8 @@ agx_fp32_varying_mask(nir_shader *nir)
 }
 
 static nir_mem_access_size_align
-mem_access_size_align_cb(nir_intrinsic_op intrin, uint8_t bytes, uint32_t align,
+mem_access_size_align_cb(nir_intrinsic_op intrin, uint8_t bytes,
+                         uint8_t input_bit_size, uint32_t align,
                          uint32_t align_offset, bool offset_is_const,
                          const void *cb_data)
 {
diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
index bdc3d45fa68..b8d0fcef558 100644
--- a/src/compiler/nir/nir.h
+++ b/src/compiler/nir/nir.h
@@ -5106,6 +5106,7 @@ typedef struct {
 typedef nir_mem_access_size_align
    (*nir_lower_mem_access_bit_sizes_cb)(nir_intrinsic_op intrin,
                                         uint8_t bytes,
+                                        uint8_t bit_size,
                                         uint32_t align_mul,
                                         uint32_t align_offset,
                                         bool offset_is_const,
diff --git a/src/compiler/nir/nir_lower_mem_access_bit_sizes.c b/src/compiler/nir/nir_lower_mem_access_bit_sizes.c
index 5ca3bcd4bb9..3939ad4db04 100644
--- a/src/compiler/nir/nir_lower_mem_access_bit_sizes.c
+++ b/src/compiler/nir/nir_lower_mem_access_bit_sizes.c
@@ -89,7 +89,7 @@ lower_mem_load(nir_builder *b, nir_intrinsic_instr *intrin,
 
    nir_mem_access_size_align requested =
       mem_access_size_align_cb(intrin->intrinsic, bytes_read,
-                               align_mul, whole_align_offset,
+                               bit_size, align_mul, whole_align_offset,
                                offset_is_const, cb_data);
 
    assert(util_is_power_of_two_nonzero(align_mul));
@@ -112,7 +112,7 @@ lower_mem_load(nir_builder *b, nir_intrinsic_instr *intrin,
       const uint32_t chunk_align =
          nir_combined_align(align_mul, chunk_align_offset);
       requested = mem_access_size_align_cb(intrin->intrinsic, bytes_left,
-                                           align_mul, chunk_align_offset,
+                                           bit_size, align_mul, chunk_align_offset,
                                            offset_is_const, cb_data);
 
       unsigned chunk_bytes;
@@ -253,7 +253,7 @@ lower_mem_store(nir_builder *b, nir_intrinsic_instr *intrin,
 
    nir_mem_access_size_align requested =
       mem_access_size_align_cb(intrin->intrinsic, bytes_written,
-                               align_mul, whole_align_offset,
+                               bit_size, align_mul, whole_align_offset,
                                offset_is_const, cb_data);
 
    assert(util_is_power_of_two_nonzero(align_mul));
@@ -289,7 +289,7 @@ lower_mem_store(nir_builder *b, nir_intrinsic_instr *intrin,
          (whole_align_offset + chunk_start) % align_mul;
 
       requested = mem_access_size_align_cb(intrin->intrinsic, max_chunk_bytes,
-                                           align_mul, chunk_align_offset,
+                                           bit_size, align_mul, chunk_align_offset,
                                            offset_is_const, cb_data);
 
       const uint32_t chunk_bytes =
diff --git a/src/intel/compiler/brw_nir.c b/src/intel/compiler/brw_nir.c
index a19547d61a6..ef174ff1889 100644
--- a/src/intel/compiler/brw_nir.c
+++ b/src/intel/compiler/brw_nir.c
@@ -1368,7 +1368,7 @@ bool combine_all_memory_barriers(nir_intrinsic_instr *a,
 
 static nir_mem_access_size_align
 get_mem_access_size_align(nir_intrinsic_op intrin, uint8_t bytes,
-                          uint32_t align_mul, uint32_t align_offset,
+                          uint8_t bit_size, uint32_t align_mul, uint32_t align_offset,
                           bool offset_is_const, const void *cb_data)
 {
    const uint32_t align = nir_combined_align(align_mul, align_offset);
diff --git a/src/panfrost/compiler/bifrost_compile.c b/src/panfrost/compiler/bifrost_compile.c
index 44389370e77..a13557b0a3c 100644
--- a/src/panfrost/compiler/bifrost_compile.c
+++ b/src/panfrost/compiler/bifrost_compile.c
@@ -4330,7 +4330,8 @@ bifrost_nir_lower_blend_components(struct nir_builder *b, nir_instr *instr,
 }
 
 static nir_mem_access_size_align
-mem_access_size_align_cb(nir_intrinsic_op intrin, uint8_t bytes, uint32_t align,
+mem_access_size_align_cb(nir_intrinsic_op intrin, uint8_t bytes,
+                         uint8_t input_bit_size, uint32_t align,
                          uint32_t align_offset, bool offset_is_const,
                          const void *cb_data)
 {