lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[ARM] vfp: fix fuitod/fsitod instructions

Browse Source 
These two instructions exceptionally take a single precision register
as their operand.  This means we can't use vfp_get_dm() to read the
register number - we need to use vfp_get_sm() instead.  Add a flag to
indicate this exception to the general rule.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2008-01-10 17:07:08 +00:00
committed by Russell King
parent 198a6d5a61
commit 90e6b04836
2 changed files with 13 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/vfp/vfp.h
View File

@ -361,10 +361,12 @@ u32 vfp_estimate_sqrt_significand(u32 exponent, u32 significand);
* OP_SCALAR - this operation always operates in scalar mode
* OP_SD - the instruction exceptionally writes to a single precision result.
* OP_DD - the instruction exceptionally writes to a double precision result.
* OP_SM - the instruction exceptionally reads from a single precision operand.
*/
#define OP_SCALAR (1 << 0)
#define OP_SD (1 << 1)
#define OP_DD (1 << 1)
#define OP_SM (1 << 2)
struct op {
u32 (* const fn)(int dd, int dn, int dm, u32 fpscr);