ExternalVendorCode/genode
1
0
Fork 0
mirror of https://github.com/genodelabs/genode.git synced 2025-04-08 11:55:24 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

hw: end interrupts SMP-safe on ARM (Ref #1312)

Browse Source
This commit is contained in:
Martin Stein 2015-08-14 13:11:04 +02:00 committed by Christian Helmuth
parent 166672fe16
commit 5755245609
1 changed files with 16 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
repos/base-hw/src/core/include/spec/arm_gic/pic.h
View File

@ -193,19 +193,13 @@ class Genode::Pic
static constexpr unsigned min_spi = 32;
static constexpr unsigned spurious_id = 1023;
Distr _distr;
Cpui _cpui;
unsigned const _max_irq;
unsigned _last_request;
Distr _distr;
Cpui _cpui;
Cpui::Iar::access_t _last_iar;
unsigned const _max_irq;
/**
* Platform specific initialization
*/
void _init();
/**
* Return wether kernel name 'irq_id' addresses a valid IRQ
*/
bool _valid(unsigned const irq_id) const { return irq_id <= _max_irq; }
public:
@ -218,8 +212,11 @@ class Genode::Pic
Pic()
: _distr(Board::IRQ_CONTROLLER_DISTR_BASE),
_cpui (Board::IRQ_CONTROLLER_CPU_BASE),
_max_irq(_distr.max_irq()),
_last_request(spurious_id) { _init(); }
_last_iar(Cpui::Iar::Irq_id::bits(spurious_id)),
_max_irq(_distr.max_irq())
{
_init();
}
/**
* Initialize CPU local interface of the controller
@ -229,13 +226,13 @@ class Genode::Pic
/**
* Try to take an IRQ and return wether it was successful
*
* \param irq_id contains kernel name of taken IRQ on success
* \param irq contains kernel name of taken IRQ on success
*/
bool take_request(unsigned & irq_id)
bool take_request(unsigned & irq)
{
_last_request = _cpui.read<Cpui::Iar::Irq_id>();
irq_id = _last_request;
return _valid(irq_id);
_last_iar = _cpui.read<Cpui::Iar>();
irq = Cpui::Iar::Irq_id::get(_last_iar);
return _valid(irq);
}
/**
@ -243,9 +240,8 @@ class Genode::Pic
*/
void finish_request()
{
if (!_valid(_last_request)) { return; }
_cpui.write<Cpui::Eoir::Irq_id>(_last_request);
_last_request = spurious_id;
_cpui.write<Cpui::Eoir>(_last_iar);
_last_iar = Cpui::Iar::Irq_id::bits(spurious_id);
}
/**