Add description for the BFloat16 precision Floating-Point ISA extension,
(Zfbfmin, Zvfbfmin, Zvfbfwma). which was ratified in commit 4dc23d62
("Added Chapter title to BF16") of the riscv-isa-manual.
Signed-off-by: Inochi Amaoto <inochiama@xxxxxxxxx>
Acked-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
---
.../devicetree/bindings/riscv/extensions.yaml | 45 +++++++++++++++++++
1 file changed, 45 insertions(+)
diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml
index 9c7dd7e75e0c..0a1f1a76d129 100644
--- a/Documentation/devicetree/bindings/riscv/extensions.yaml
+++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
@@ -329,6 +329,12 @@ properties:
instructions, as ratified in commit 056b6ff ("Zfa is ratified") of
riscv-isa-manual.
+ - const: zfbfmin
+ description:
+ The standard Zfbfmin extension which provides minimal support for
+ 16-bit half-precision brain floating-point instructions, as ratified
+ in commit 4dc23d62 ("Added Chapter title to BF16") of riscv-isa-manual.
+
- const: zfh
description:
The standard Zfh extension for 16-bit half-precision binary
@@ -525,6 +531,18 @@ properties:
in commit 6f702a2 ("Vector extensions are now ratified") of
riscv-v-spec.
+ - const: zvfbfmin
+ description:
+ The standard Zvfbfmin extension for minimal support for vectored
+ 16-bit half-precision brain floating-point instructions, as ratified
+ in commit 4dc23d62 ("Added Chapter title to BF16") of riscv-isa-manual.
+
+ - const: zvfbfwma
+ description:
+ The standard Zvfbfwma extension for vectored half-precision brain
+ floating-point widening multiply-accumulate instructions, as ratified
+ in commit 4dc23d62 ("Added Chapter title to BF16") of riscv-isa-manual.
+
- const: zvfh
description:
The standard Zvfh extension for vectored half-precision
@@ -663,6 +681,33 @@ properties:
then:
contains:
const: zca
+ # Zfbfmin depends on F
+ - if:
+ contains:
+ const: zfbfmin
+ then:
+ contains:
+ const: f
+ # Zvfbfmin depends on V or Zve32f
+ - if:
+ contains:
+ const: zvfbfmin
+ then:
+ oneOf:
+ - contains:
+ const: v
+ - contains:
+ const: zve32f
+ # Zvfbfwma depends on Zfbfmin and Zvfbfmin
+ - if:
+ contains:
+ const: zvfbfwma
+ then:
+ allOf:
+ - contains:
+ const: zfbfmin
+ - contains:
+ const: zvfbfmin
allOf:
# Zcf extension does not exist on rv64
--
2.47.1
