CPR(Core Power Reduction) is a new h/w block added in 8x25
2.0 revision. This block reduce the power consumption of
SOC using sensors inside the SOC. Add function callbacks to
PM driver to perform disable, enable, save and restore of
CPR context data when the core do an IdlePC.
Signed-off-by: Murali Nalajala <mnalajal@codeaurora.org>
(cherry picked from commit ff723ece018452e722155daa67ff0fdd65cc5c96)
Change-Id: Ideb6300ce1afe9976853e47ab9f1eec2ef22c77e
Signed-off-by: Sudhir Sharma <sudsha@codeaurora.org>
We see a kernel panic when we reboot with recovery mode
from the UI. Though kernel prepares to stop the other
cores(cpu_relax), but in some race condition mpdecision kicks
in to wake up(CPU_UP_PREPARE) the other core, before we go
ahead for issuing pcom command from core-0 for restart and this
causes a BUG in stop machine code.
So to resolve this before we issue a PCOM_RESET_CHIP command from
core-0, we must ensure that IRQ and FIQ is disabled and also
map the user pages to 1:1 mapping so as to not have unpredictable
MMU errors or kernel panics.
Moving the code put of pm2.c as this code is more restart specific and
not related to power management code.
CRs-Fixed: 359879
Change-Id: If26fdf3a4dd1fb5ecc4c28859bfd68650ff4e747
Signed-off-by: Taniya Das <tdas@codeaurora.org>
