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nova: support usage of priorities in Genode/Nova

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Enables finally the usage of priorities on base-nova.

Fixes #986
This commit is contained in:
Alexander Boettcher 2014-02-10 15:28:12 +01:00 committed by Christian Helmuth
parent 9ae441e469
commit a7bc8bac9a
4 changed files with 10 additions and 6 deletions
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2
base-nova/include/nova/syscall-generic.h
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@ -404,7 +404,7 @@ namespace Nova {
public: public:
enum { DEFAULT_QUANTUM = 10000, DEFAULT_PRIORITY = 1 }; enum { DEFAULT_QUANTUM = 10000, DEFAULT_PRIORITY = 64 };
Qpd(mword_t quantum = DEFAULT_QUANTUM, Qpd(mword_t quantum = DEFAULT_QUANTUM,
mword_t priority = DEFAULT_PRIORITY) mword_t priority = DEFAULT_PRIORITY)

1
base-nova/src/core/include/platform_thread.h
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@ -44,6 +44,7 @@ namespace Genode {
WORKER = 0x4U, WORKER = 0x4U,
}; };
uint8_t _features; uint8_t _features;
uint8_t _priority;
char _name[Thread_base::Context::NAME_LEN]; char _name[Thread_base::Context::NAME_LEN];

2
base-nova/src/core/irq_session_component.cc
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@ -98,7 +98,7 @@ class Irq_thread : public Thread_base
/* create SC */ /* create SC */
unsigned sc_sel = cap_map()->insert(); unsigned sc_sel = cap_map()->insert();
res = create_sc(sc_sel, pd_sel, _tid.ec_sel, Qpd()); res = create_sc(sc_sel, pd_sel, _tid.ec_sel, Qpd(Qpd::DEFAULT_QUANTUM, Qpd::DEFAULT_PRIORITY + 1));
if (res != NOVA_OK) { if (res != NOVA_OK) {
PERR("%p - create_sc returned returned %d", this, res); PERR("%p - create_sc returned returned %d", this, res);
throw Cpu_session::Thread_creation_failed(); throw Cpu_session::Thread_creation_failed();

11
base-nova/src/core/platform_thread.cc
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@ -154,7 +154,8 @@ int Platform_thread::start(void *ip, void *sp)
_pager->initial_esp((addr_t)sp); _pager->initial_esp((addr_t)sp);
/* let the thread run */ /* let the thread run */
res = create_sc(_sel_sc(), pd_sel, _sel_ec(), Qpd()); res = create_sc(_sel_sc(), pd_sel, _sel_ec(),
Qpd(Qpd::DEFAULT_QUANTUM, _priority));
if (res != NOVA_OK) { if (res != NOVA_OK) {
/* /*
* Reset pd cap since thread got not running and pd cap will * Reset pd cap since thread got not running and pd cap will
@ -208,7 +209,8 @@ void Platform_thread::resume()
using namespace Nova; using namespace Nova;
if (!is_worker()) { if (!is_worker()) {
uint8_t res = create_sc(_sel_sc(), _pd->pd_sel(), _sel_ec(), Qpd()); uint8_t res = create_sc(_sel_sc(), _pd->pd_sel(), _sel_ec(),
Qpd(Qpd::DEFAULT_QUANTUM, _priority));
if (res == NOVA_OK) return; if (res == NOVA_OK) return;
} }
@ -287,11 +289,12 @@ Weak_ptr<Address_space> Platform_thread::address_space()
} }
Platform_thread::Platform_thread(const char *name, unsigned, int thread_id) Platform_thread::Platform_thread(const char *name, unsigned prio, int thread_id)
: :
_pd(0), _pager(0), _id_base(cap_map()->insert(1)), _pd(0), _pager(0), _id_base(cap_map()->insert(1)),
_sel_exc_base(Native_thread::INVALID_INDEX), _location(boot_cpu(), 0, 0, 0), _sel_exc_base(Native_thread::INVALID_INDEX), _location(boot_cpu(), 0, 0, 0),
_features(0) _features(0),
_priority(Cpu_session::scale_priority(Nova::Qpd::DEFAULT_PRIORITY, prio))
{ {
strncpy(_name, name, sizeof(_name)); strncpy(_name, name, sizeof(_name));
} }