Register exp/expm1/logit bf16 activation op kernels (#48702)

* register more bf16 ops

* update to register coresponding backward ops

paddle/phi/kernels/gpu/activation_grad_kernel.cu

@@ -371,7 +371,8 @@ PD_REGISTER_KERNEL(exp_grad,
                    double,
                    int,
                    int64_t,
-                   phi::dtype::float16) {}
+                   phi::dtype::float16,
+                   phi::dtype::bfloat16) {}
 
 PD_REGISTER_ACTIVATION_GRAD_KERNEL(softshrink_grad, SoftShrinkGradKernel)
 PD_REGISTER_ACTIVATION_GRAD_KERNEL(hard_shrink_grad, HardShrinkGradKernel)
@@ -386,7 +387,8 @@ PD_REGISTER_KERNEL(expm1_grad,
                    phi::Expm1GradKernel,
                    float,
                    double,
-                   phi::dtype::float16) {}
+                   phi::dtype::float16,
+                   phi::dtype::bfloat16) {}
 
 PD_REGISTER_KERNEL(logit_grad,
                    GPU,
@@ -394,7 +396,8 @@ PD_REGISTER_KERNEL(logit_grad,
                    phi::LogitGradKernel,
                    float,
                    double,
-                   phi::dtype::float16) {}
+                   phi::dtype::float16,
+                   phi::dtype::bfloat16) {}
 
 PD_REGISTER_KERNEL(square_grad,
                    GPU,

paddle/phi/kernels/gpu/activation_kernel.cu

@@ -215,21 +215,24 @@ PD_REGISTER_KERNEL(exp,
                    double,
                    int,
                    int64_t,
-                   phi::dtype::float16) {}
+                   phi::dtype::float16,
+                   phi::dtype::bfloat16) {}
 PD_REGISTER_KERNEL(expm1,
                    GPU,
                    ALL_LAYOUT,
                    phi::Expm1Kernel,
                    float,
                    double,
-                   phi::dtype::float16) {}
+                   phi::dtype::float16,
+                   phi::dtype::bfloat16) {}
 PD_REGISTER_KERNEL(logit,
                    GPU,
                    ALL_LAYOUT,
                    phi::LogitKernel,
                    float,
                    double,
-                   phi::dtype::float16) {}
+                   phi::dtype::float16,
+                   phi::dtype::bfloat16) {}
 PD_REGISTER_KERNEL(square,
                    GPU,
                    ALL_LAYOUT,