arch/risc-v: add support of save/restore vector registers #12184
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Reference: https://github.com/riscv/riscv-v-spec/blob/master/v-spec.adoc https://github.com/torvalds/linux/blob/master/arch/riscv/include/asm/vector.h Signed-off-by: chao an <anchao@lixiang.com>
acassis
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Apr 23, 2024
xiaoxiang781216
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Apr 24, 2024
| * | ||
| * Description: | ||
| * Given the pointer to a register save area (in A0), save the state of the | ||
| * floating point registers. |
| * Name: riscv_savevpu | ||
| * | ||
| * Description: | ||
| * Given the pointer to a register save area (in A0), save the state of the |
| * floating point registers. | ||
| * | ||
| * C Function Prototype: | ||
| * void riscv_savevpu(uintptr_t *regs, uintptr_t *fregs); |
| * | ||
| * Input Parameters: | ||
| * regs - A pointer to the integer registers that contain the status | ||
| * fregs - A pointer to the register save area in which to save the |
| * Input Parameters: | ||
| * regs - A pointer to the integer registers that contain the status | ||
| * fregs - A pointer to the register save area in which to save the | ||
| * floating point registers |
| * | ||
| * Input Parameters: | ||
| * regs - A pointer to the integer registers that contain the status | ||
| * fregs - A pointer to the register save area containing the floating |
| * | ||
| * Description: | ||
| * Given the pointer to a register save area (in A0), restore the state of | ||
| * the floating point registers. |
|
@anchao see my minor comment. |
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Summary
arch/risc-v: add support of save/restore vector registers
Reference:
https://github.com/riscv/riscv-v-spec/blob/master/v-spec.adoc
https://github.com/torvalds/linux/blob/master/arch/riscv/include/asm/vector.h
Signed-off-by: chao an anchao@lixiang.com
Impact
N/A
Testing
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