diff --git a/Snakefile b/Snakefile
index 0fb93c74..db1008ed 100644
--- a/Snakefile
+++ b/Snakefile
@@ -104,7 +104,11 @@ TESTSET_FAST = [
     # 3d templated kernels
     *expand(
         "matmul_transb/4x16x16xf32/{variant}",
-        variant=["baseline", "snrt", "snitch_stream"],
+        variant=["linalg", "baseline", "snrt", "snitch_stream"],
+    ),
+    *expand(
+        "matmul_transb/4x16x16xf64/{variant}",
+        variant=["linalg", "linalg_xdsl"],
     ),
     *expand(
         "matmul/4x16x8xf64/{variant}",
diff --git a/kernels/matmul_transb/data.h.template b/kernels/matmul_transb/data.h.template
index 23080e7b..a1b14d3f 100644
--- a/kernels/matmul_transb/data.h.template
+++ b/kernels/matmul_transb/data.h.template
@@ -1,12 +1,23 @@
 #pragma once
 
+#define PRECISION {{precision}}
+#if PRECISION == 16
+#define DTYPE __fp16
+#elif PRECISION == 32
+#define DTYPE float
+#elif PRECISION == 64
+#define DTYPE double
+#else
+#error Unsupported precision
+#endif
+
 #define M {{M}}
 #define K {{K}}
 #define N {{N}}
 
-extern const float X[M * K];
-extern const float Y[N * K];
-extern const float G_IN[M * N];
-extern const float G_OUT[M * N];
+extern const DTYPE X[M * K];
+extern const DTYPE Y[N * K];
+extern const DTYPE G_IN[M * N];
+extern const DTYPE G_OUT[M * N];
 
 #define TEST_COUNT (M * N)
diff --git a/kernels/matmul_transb/gendata.py b/kernels/matmul_transb/gendata.py
index e843744f..0b0d81bc 100644
--- a/kernels/matmul_transb/gendata.py
+++ b/kernels/matmul_transb/gendata.py
@@ -3,7 +3,7 @@
 # usage: `python -m matmul.gendata -p matmul/4x4xf64/params.json`
 
 import numpy as np
-from typing import Iterator
+from collections.abc import Iterator
 
 from gendatautils import main, Define, Array
 
@@ -15,7 +15,7 @@ def matrix_data(
     yield Define("K", K)
     yield Define("N", N)
 
-    t = {32: np.float32}[precision]
+    t = {32: np.float32, 64: np.float64}[precision]
 
     # Errors accumulate a lot with the strategy used in snrt,
     # especially due to the repeated (quite a bit) flaky SIMD reductions.
@@ -28,8 +28,8 @@ def matrix_data(
     n = N
     k = K
     np.random.seed(0)
-    x = np.random.uniform(rmin, rmax, m * k).astype(t).reshape((m, k))
-    y = np.random.uniform(rmin, rmax, k * n).astype(t).reshape((k, n))
+    x = np.random.uniform(rmin, rmax, (m, k)).astype(t)
+    y = np.random.uniform(rmin, rmax, (k, n)).astype(t)
     g_in = np.zeros((m, n), dtype=t)
 
     g_out = x @ y
diff --git a/kernels/matmul_transb/linalg.mlir.template b/kernels/matmul_transb/linalg.mlir.template
new file mode 100644
index 00000000..f0ee3f67
--- /dev/null
+++ b/kernels/matmul_transb/linalg.mlir.template
@@ -0,0 +1,8 @@
+func.func public @matmul_transb(%X: tensor<{{M}}x{{K}}xf{{precision}}> {"llvm.noalias"},
+                         %Y: tensor<{{N}}x{{K}}xf{{precision}}> {"llvm.noalias"},
+                         %Z: tensor<{{M}}x{{N}}xf{{precision}}> {"llvm.noalias"}) -> tensor<{{M}}x{{N}}xf{{precision}}> {
+  %zero = arith.constant 0.0 : f{{precision}}
+  %zeros = linalg.fill ins(%zero : f{{precision}}) outs(%Z : tensor<{{M}}x{{N}}xf{{precision}}>) -> tensor<{{M}}x{{N}}xf{{precision}}>
+  %res = linalg.matmul_transpose_b ins(%X, %Y : tensor<{{M}}x{{K}}xf{{precision}}>, tensor<{{N}}x{{K}}xf{{precision}}>) outs(%zeros : tensor<{{M}}x{{N}}xf{{precision}}>) -> tensor<{{M}}x{{N}}xf{{precision}}>
+  func.return %res : tensor<{{M}}x{{N}}xf{{precision}}>
+}
diff --git a/kernels/matmul_transb/main.c b/kernels/matmul_transb/main.c
index 8d360a6f..e72b532b 100644
--- a/kernels/matmul_transb/main.c
+++ b/kernels/matmul_transb/main.c
@@ -5,22 +5,22 @@
 #include <math.h>
 
 // Kernel provided via external definition
-void matmul_transb(const float *x, const float *y, float *g);
+void matmul_transb(const DTYPE *x, const DTYPE *y, DTYPE *g);
 
 int main() {
     // Allocate shared local memory
     // By avoiding allocators and bumping by a known offset a base pointer
     // (snrt_l1_next()) that is the same for all the cores in the cluster, we are
     // essentially providing the same memory regions to all the cores in this cluster.
-    float *local_x = (float *)snrt_l1_next();
-    float *local_y = local_x + M * K;
-    float *local_z = local_y + N * K;
+    DTYPE *local_x = (DTYPE *)snrt_l1_next();
+    DTYPE *local_y = local_x + M * K;
+    DTYPE *local_z = local_y + N * K;
 
     // Copy data in shared local memory
     if (snrt_is_dm_core()) {
-        snrt_dma_start_1d(local_x, X, M * K * sizeof(float));
-        snrt_dma_start_1d(local_y, Y, N * K * sizeof(float));
-        snrt_dma_start_1d(local_z, G_IN, M * N * sizeof(float));
+        snrt_dma_start_1d(local_x, X, M * K * sizeof(DTYPE));
+        snrt_dma_start_1d(local_y, Y, N * K * sizeof(DTYPE));
+        snrt_dma_start_1d(local_z, G_IN, M * N * sizeof(DTYPE));
         snrt_dma_wait_all();
     }
 
@@ -39,7 +39,7 @@ int main() {
     // Correctness check
     int nerr = 0;
     for (int i = 0; i < TEST_COUNT; i++) {
-        float d = fabsf(local_z[i] - G_OUT[i]);
+        DTYPE d = fabs(local_z[i] - G_OUT[i]);
         nerr += !(d <= 1E-2f);  // Make sure to take into account NaNs (e.g.: happy path
                                 // on the taken branch)
     }
diff --git a/results/kernels.csv b/results/kernels.csv
index fbe80bb2..cef48fc4 100644
--- a/results/kernels.csv
+++ b/results/kernels.csv
@@ -26,8 +26,11 @@ matmul,4x16x8xf64,baseline,2495,3293,3290,2.9941520467836256,1.4991334488734835,
 matmul,4x16x8xf64,linalg,2694,3483,3480,2.9941520467836256,1.4745484400656814,512,513,1536,0.19042316258351893,0.44415584415584414,1155,898,609,0.4287305122494432,0,33,1.0,1.0,1,3.4,1155,0.73520050922979,416,17,5,0.1544172234595397,69,790,0.0,0.5831477357089829,0.0
 matmul,4x16x8xf64,linalg_xdsl,708,1493,1490,2.811418685121107,0.0,512,578,1625,0.8163841807909604,0.996551724137931,580,0,0,0.8192090395480226,0,0,5.37037037037037,5.37037037037037,1,0.0,108,0.5869565217391305,76,0,0,0.10734463276836158,0,786,0.0,0.9265536723163842,0.0
 matmul_transb,4x16x16xf32,baseline,3386,4184,4181,2.539660056657224,1.4921875,0,706,1793,0.20850561134081513,0.3935340022296544,1794,1528,1024,0.5298287064382753,0,64,1.0,1.0,1,0.0,1794,0.5561066336019839,1432,0,0,0.42291789722386297,0,799,0.0,0.9527466036621383,0.0
+matmul_transb,4x16x16xf32,linalg,5038,5831,5828,2.9970731707317073,1.4995663486556807,0,1025,3072,0.203453751488686,0.4569772625947392,2243,1729,1153,0.44521635569670504,0,65,1.0,1.0,1,3.4,2243,0.8036546040845575,548,17,5,0.10877332274712187,69,794,0.0,0.553989678443827,0.0
 matmul_transb,4x16x16xf32,snitch_stream,845,1636,1633,2.7429906542056073,0.0,0,642,1761,0.7597633136094675,0.9067796610169492,708,0,0,0.8378698224852071,0,64,2.0823529411764703,2.0823529411764707,1,0.0,340,0.7296137339055794,126,0,0,0.14911242603550295,0,792,0.0,0.98698224852071,0.0
 matmul_transb,4x16x16xf32,snrt,849,1612,1609,2.648367952522255,0.0,0,674,1785,0.7938751472320377,0.9519774011299436,708,0,0,0.833922261484099,0,32,2.1325301204819276,2.1325301204819276,1,0.0,332,0.8924731182795699,40,0,0,0.04711425206124853,0,764,0.0,0.8810365135453475,0.0
+matmul_transb,4x16x16xf64,linalg,5142,5967,5964,2.9970731707317073,1.4995663486556807,1024,1025,3072,0.19933877868533645,0.4569772625947392,2243,1729,1153,0.43621159082069233,0,65,1.0,1.0,1,3.4,2243,0.7769310703152061,644,17,5,0.12524309607156747,133,826,0.0,0.5614546868922599,0.0
+matmul_transb,4x16x16xf64,linalg_xdsl,1295,2124,2121,2.815424610051993,0.0,1024,1154,3249,0.8911196911196911,0.9982698961937716,1156,0,0,0.8926640926640926,0,0,5.452830188679246,5.452830188679245,1,0.0,212,0.6794871794871795,100,0,0,0.07722007722007722,0,830,0.0,0.9698841698841698,0.0
 pooling_nchw_max_d1_s2_3x3,4x4xf64,baseline,584,1328,1325,0.995575221238938,1.1226415094339623,0,226,225,0.386986301369863,0.6330532212885154,357,119,106,0.6113013698630136,0,25,1.0,1.0,1,0.0,357,0.9153846153846154,33,0,0,0.05650684931506849,0,745,0.0,0.6678082191780821,0.0
 pooling_nchw_max_d1_s2_3x3,4x4xf64,linalg,484,1242,1239,0.993103448275862,1.0909090909090908,0,145,144,0.29958677685950413,0.5823293172690763,249,96,88,0.5144628099173554,0,16,1.0,1.0,1,0.0,249,0.8498293515358362,44,0,0,0.09090909090909091,32,759,0.0,0.6053719008264463,0.0
 pooling_nchw_max_d1_s2_3x3,4x4xf64,linalg_xdsl,275,1018,1015,0.9943820224719101,0.0,0,178,177,0.6472727272727272,0.9888888888888889,180,0,0,0.6545454545454545,0,0,3.214285714285714,3.2142857142857144,1,0.0,56,0.5283018867924528,50,0,0,0.18181818181818182,0,744,0.0,0.8363636363636364,0.0
diff --git a/results/kernels.fast.csv b/results/kernels.fast.csv
index fbe80bb2..cef48fc4 100644
--- a/results/kernels.fast.csv
+++ b/results/kernels.fast.csv
@@ -26,8 +26,11 @@ matmul,4x16x8xf64,baseline,2495,3293,3290,2.9941520467836256,1.4991334488734835,
 matmul,4x16x8xf64,linalg,2694,3483,3480,2.9941520467836256,1.4745484400656814,512,513,1536,0.19042316258351893,0.44415584415584414,1155,898,609,0.4287305122494432,0,33,1.0,1.0,1,3.4,1155,0.73520050922979,416,17,5,0.1544172234595397,69,790,0.0,0.5831477357089829,0.0
 matmul,4x16x8xf64,linalg_xdsl,708,1493,1490,2.811418685121107,0.0,512,578,1625,0.8163841807909604,0.996551724137931,580,0,0,0.8192090395480226,0,0,5.37037037037037,5.37037037037037,1,0.0,108,0.5869565217391305,76,0,0,0.10734463276836158,0,786,0.0,0.9265536723163842,0.0
 matmul_transb,4x16x16xf32,baseline,3386,4184,4181,2.539660056657224,1.4921875,0,706,1793,0.20850561134081513,0.3935340022296544,1794,1528,1024,0.5298287064382753,0,64,1.0,1.0,1,0.0,1794,0.5561066336019839,1432,0,0,0.42291789722386297,0,799,0.0,0.9527466036621383,0.0
+matmul_transb,4x16x16xf32,linalg,5038,5831,5828,2.9970731707317073,1.4995663486556807,0,1025,3072,0.203453751488686,0.4569772625947392,2243,1729,1153,0.44521635569670504,0,65,1.0,1.0,1,3.4,2243,0.8036546040845575,548,17,5,0.10877332274712187,69,794,0.0,0.553989678443827,0.0
 matmul_transb,4x16x16xf32,snitch_stream,845,1636,1633,2.7429906542056073,0.0,0,642,1761,0.7597633136094675,0.9067796610169492,708,0,0,0.8378698224852071,0,64,2.0823529411764703,2.0823529411764707,1,0.0,340,0.7296137339055794,126,0,0,0.14911242603550295,0,792,0.0,0.98698224852071,0.0
 matmul_transb,4x16x16xf32,snrt,849,1612,1609,2.648367952522255,0.0,0,674,1785,0.7938751472320377,0.9519774011299436,708,0,0,0.833922261484099,0,32,2.1325301204819276,2.1325301204819276,1,0.0,332,0.8924731182795699,40,0,0,0.04711425206124853,0,764,0.0,0.8810365135453475,0.0
+matmul_transb,4x16x16xf64,linalg,5142,5967,5964,2.9970731707317073,1.4995663486556807,1024,1025,3072,0.19933877868533645,0.4569772625947392,2243,1729,1153,0.43621159082069233,0,65,1.0,1.0,1,3.4,2243,0.7769310703152061,644,17,5,0.12524309607156747,133,826,0.0,0.5614546868922599,0.0
+matmul_transb,4x16x16xf64,linalg_xdsl,1295,2124,2121,2.815424610051993,0.0,1024,1154,3249,0.8911196911196911,0.9982698961937716,1156,0,0,0.8926640926640926,0,0,5.452830188679246,5.452830188679245,1,0.0,212,0.6794871794871795,100,0,0,0.07722007722007722,0,830,0.0,0.9698841698841698,0.0
 pooling_nchw_max_d1_s2_3x3,4x4xf64,baseline,584,1328,1325,0.995575221238938,1.1226415094339623,0,226,225,0.386986301369863,0.6330532212885154,357,119,106,0.6113013698630136,0,25,1.0,1.0,1,0.0,357,0.9153846153846154,33,0,0,0.05650684931506849,0,745,0.0,0.6678082191780821,0.0
 pooling_nchw_max_d1_s2_3x3,4x4xf64,linalg,484,1242,1239,0.993103448275862,1.0909090909090908,0,145,144,0.29958677685950413,0.5823293172690763,249,96,88,0.5144628099173554,0,16,1.0,1.0,1,0.0,249,0.8498293515358362,44,0,0,0.09090909090909091,32,759,0.0,0.6053719008264463,0.0
 pooling_nchw_max_d1_s2_3x3,4x4xf64,linalg_xdsl,275,1018,1015,0.9943820224719101,0.0,0,178,177,0.6472727272727272,0.9888888888888889,180,0,0,0.6545454545454545,0,0,3.214285714285714,3.2142857142857144,1,0.0,56,0.5283018867924528,50,0,0,0.18181818181818182,0,744,0.0,0.8363636363636364,0.0
diff --git a/results/pivoted.csv b/results/pivoted.csv
index 80e299f3..e70a112e 100644
--- a/results/pivoted.csv
+++ b/results/pivoted.csv
@@ -4,7 +4,8 @@ ddot 128xf64,956,965,,213,577
 dense 8x8xf64,3206,3530,,2741,2723
 fill 4x4xf64,50,50,64,,
 matmul 4x16x8xf64,2495,2694,708,,
-matmul_transb 4x16x16xf32,3386,,,845,849
+matmul_transb 4x16x16xf32,3386,5038,,845,849
+matmul_transb 4x16x16xf64,,5142,1295,,
 pooling_nchw_max_d1_s2_3x3 4x4xf64,584,484,275,,
 pooling_nchw_sum_d1_s2_3x3 4x4xf64,902,832,271,,
 relu 4x4xf64,142,125,72,,
diff --git a/results/pivoted.fast.csv b/results/pivoted.fast.csv
index 80e299f3..e70a112e 100644
--- a/results/pivoted.fast.csv
+++ b/results/pivoted.fast.csv
@@ -4,7 +4,8 @@ ddot 128xf64,956,965,,213,577
 dense 8x8xf64,3206,3530,,2741,2723
 fill 4x4xf64,50,50,64,,
 matmul 4x16x8xf64,2495,2694,708,,
-matmul_transb 4x16x16xf32,3386,,,845,849
+matmul_transb 4x16x16xf32,3386,5038,,845,849
+matmul_transb 4x16x16xf64,,5142,1295,,
 pooling_nchw_max_d1_s2_3x3 4x4xf64,584,484,275,,
 pooling_nchw_sum_d1_s2_3x3 4x4xf64,902,832,271,,
 relu 4x4xf64,142,125,72,,
diff --git a/results/pivoted_fpu.csv b/results/pivoted_fpu.csv
index 4b657c1c..70b4c53c 100644
--- a/results/pivoted_fpu.csv
+++ b/results/pivoted_fpu.csv
@@ -4,7 +4,8 @@ ddot 128xf64,0.13,0.13,,0.64,0.22
 dense 8x8xf64,0.20,0.18,,0.26,0.26
 fill 4x4xf64,0.02,0.02,0.28,,
 matmul 4x16x8xf64,0.21,0.19,0.82,,
-matmul_transb 4x16x16xf32,0.21,,,0.76,0.79
+matmul_transb 4x16x16xf32,0.21,0.20,,0.76,0.79
+matmul_transb 4x16x16xf64,,0.20,0.89,,
 pooling_nchw_max_d1_s2_3x3 4x4xf64,0.39,0.30,0.65,,
 pooling_nchw_sum_d1_s2_3x3 4x4xf64,0.22,0.17,0.66,,
 relu 4x4xf64,0.13,0.14,0.25,,
diff --git a/results/pivoted_fpu.fast.csv b/results/pivoted_fpu.fast.csv
index 4b657c1c..70b4c53c 100644
--- a/results/pivoted_fpu.fast.csv
+++ b/results/pivoted_fpu.fast.csv
@@ -4,7 +4,8 @@ ddot 128xf64,0.13,0.13,,0.64,0.22
 dense 8x8xf64,0.20,0.18,,0.26,0.26
 fill 4x4xf64,0.02,0.02,0.28,,
 matmul 4x16x8xf64,0.21,0.19,0.82,,
-matmul_transb 4x16x16xf32,0.21,,,0.76,0.79
+matmul_transb 4x16x16xf32,0.21,0.20,,0.76,0.79
+matmul_transb 4x16x16xf64,,0.20,0.89,,
 pooling_nchw_max_d1_s2_3x3 4x4xf64,0.39,0.30,0.65,,
 pooling_nchw_sum_d1_s2_3x3 4x4xf64,0.22,0.17,0.66,,
 relu 4x4xf64,0.13,0.14,0.25,,
diff --git a/results/pivoted_ipc.csv b/results/pivoted_ipc.csv
index 3f816012..bcec93a6 100644
--- a/results/pivoted_ipc.csv
+++ b/results/pivoted_ipc.csv
@@ -4,7 +4,8 @@ ddot 128xf64,0.95,0.94,,0.74,0.25
 dense 8x8xf64,0.51,0.55,,0.39,0.33
 fill 4x4xf64,0.46,0.46,0.53,,
 matmul 4x16x8xf64,0.56,0.58,0.93,,
-matmul_transb 4x16x16xf32,0.95,,,0.99,0.88
+matmul_transb 4x16x16xf32,0.95,0.55,,0.99,0.88
+matmul_transb 4x16x16xf64,,0.56,0.97,,
 pooling_nchw_max_d1_s2_3x3 4x4xf64,0.67,0.61,0.84,,
 pooling_nchw_sum_d1_s2_3x3 4x4xf64,0.40,0.43,0.84,,
 relu 4x4xf64,0.40,0.46,0.53,,
diff --git a/results/pivoted_ipc.fast.csv b/results/pivoted_ipc.fast.csv
index 3f816012..bcec93a6 100644
--- a/results/pivoted_ipc.fast.csv
+++ b/results/pivoted_ipc.fast.csv
@@ -4,7 +4,8 @@ ddot 128xf64,0.95,0.94,,0.74,0.25
 dense 8x8xf64,0.51,0.55,,0.39,0.33
 fill 4x4xf64,0.46,0.46,0.53,,
 matmul 4x16x8xf64,0.56,0.58,0.93,,
-matmul_transb 4x16x16xf32,0.95,,,0.99,0.88
+matmul_transb 4x16x16xf32,0.95,0.55,,0.99,0.88
+matmul_transb 4x16x16xf64,,0.56,0.97,,
 pooling_nchw_max_d1_s2_3x3 4x4xf64,0.67,0.61,0.84,,
 pooling_nchw_sum_d1_s2_3x3 4x4xf64,0.40,0.43,0.84,,
 relu 4x4xf64,0.40,0.46,0.53,,
diff --git a/results/regalloc.fast.csv b/results/regalloc.fast.csv
index e088657a..825a9b6c 100644
--- a/results/regalloc.fast.csv
+++ b/results/regalloc.fast.csv
@@ -5,6 +5,7 @@ dense,8x8xf64,5,11
 fill,4x4xf64,3,3
 matmul,4x16x8xf64,8,8
 matmul_transb,4x16x16xf32,11,12
+matmul_transb,4x16x16xf64,8,8
 pooling_nchw_max_d1_s2_3x3,4x4xf64,7,6
 pooling_nchw_sum_d1_s2_3x3,4x4xf64,7,6
 relu,4x4xf64,3,5