mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 01:10:04 +00:00
ARMv7: Enable the SWP instruction
The SWP instruction has been deprecated starting with the ARMv6 architecture. On ARMv7 processors with the multiprocessor extensions (like Cortex-A9), this instruction is disabled by default but it can be enabled by setting bit 10 in the System Control register. Note that setting this bit is safe even if the ARMv7 processor has the SWP instruction enabled by default. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
parent
d71e1352e2
commit
213fb2a8ee
1 changed files with 4 additions and 4 deletions
|
@ -232,14 +232,14 @@ __v7_setup:
|
|||
ENDPROC(__v7_setup)
|
||||
|
||||
/* AT
|
||||
* TFR EV X F I D LR
|
||||
* .EEE ..EE PUI. .T.T 4RVI ZFRS BLDP WCAM
|
||||
* TFR EV X F I D LR S
|
||||
* .EEE ..EE PUI. .T.T 4RVI ZWRS BLDP WCAM
|
||||
* rxxx rrxx xxx0 0101 xxxx xxxx x111 xxxx < forced
|
||||
* 1 0 110 0011 1.00 .111 1101 < we want
|
||||
* 1 0 110 0011 1100 .111 1101 < we want
|
||||
*/
|
||||
.type v7_crval, #object
|
||||
v7_crval:
|
||||
crval clear=0x0120c302, mmuset=0x10c0387d, ucset=0x00c0187c
|
||||
crval clear=0x0120c302, mmuset=0x10c03c7d, ucset=0x00c01c7c
|
||||
|
||||
__v7_setup_stack:
|
||||
.space 4 * 11 @ 11 registers
|
||||
|
|
Loading…
Reference in a new issue