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docs: powerpc: syscall64-abi.rst: fix a malformed table

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	Documentation/powerpc/syscall64-abi.rst:53: WARNING: Malformed table.
	Text in column margin in table line 2.

	=========== ============= ========================================
	--- For the sc instruction, differences with the ELF ABI ---
	r0          Volatile      (System call number.)

This table requires a different notation to be valid.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab 2020-08-27 07:35:37 +02:00
parent d4dd87f83c
commit 209b44c804
1 changed files with 16 additions and 16 deletions
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32
Documentation/powerpc/syscall64-abi.rst
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@ -49,22 +49,22 @@ Register preservation rules
Register preservation rules match the ELF ABI calling sequence with the
following differences:
--- For the sc instruction, differences with the ELF ABI ---
=========== ============= ========================================
r0 Volatile (System call number.)
r3 Volatile (Parameter 1, and return value.)
r4-r8 Volatile (Parameters 2-6.)
cr0 Volatile (cr0.SO is the return error condition.)
cr1, cr5-7 Nonvolatile
lr Nonvolatile
=========== ============= ========================================
--- For the scv 0 instruction, differences with the ELF ABI ---
=========== ============= ========================================
r0 Volatile (System call number.)
r3 Volatile (Parameter 1, and return value.)
r4-r8 Volatile (Parameters 2-6.)
=========== ============= ========================================
+------------------------------------------------------------------------+
| For the sc instruction, differences with the ELF ABI |
+--------------+--------------+------------------------------------------+
| r0 | Volatile | (System call number.) |
| rr3 | Volatile | (Parameter 1, and return value.) |
| rr4-r8 | Volatile | (Parameters 2-6.) |
| rcr0 | Volatile | (cr0.SO is the return error condition.) |
| rcr1, cr5-7 | Nonvolatile | |
| rlr | Nonvolatile | |
+--------------+--------------+------------------------------------------+
| For the scv 0 instruction, differences with the ELF ABI |
+--------------+--------------+------------------------------------------+
| r0 | Volatile | (System call number.) |
| r3 | Volatile | (Parameter 1, and return value.) |
| r4-r8 | Volatile | (Parameters 2-6.) |
+--------------+--------------+------------------------------------------+
All floating point and vector data registers as well as control and status
registers are nonvolatile.