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base: extend cache maintainance functionality

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Introduce two new cache maintainance functions:
* cache_clean_invalidate_data
* cache_invalidate_data
used to flush or invalidate data-cache lines.

Both functions are typically empty, accept for the ARM architecture.
The commit provides implementations for the base-hw kernel, and Fiasco.OC.

Fixes #4207
This commit is contained in:
Stefan Kalkowski
2021-06-24 14:27:37 +02:00
committed by Christian Helmuth
parent ed0cc5330e
commit e7067050be
26 changed files with 301 additions and 98 deletions
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42
repos/base-hw/include/kernel/interface.h
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@@ -37,13 +37,15 @@ namespace Kernel {
constexpr Call_arg call_id_ack_signal() { return 11; }
constexpr Call_arg call_id_print_char() { return 12; }
constexpr Call_arg call_id_cache_coherent_region() { return 13; }
constexpr Call_arg call_id_ack_cap() { return 14; }
constexpr Call_arg call_id_delete_cap() { return 15; }
constexpr Call_arg call_id_timeout() { return 16; }
constexpr Call_arg call_id_timeout_max_us() { return 17; }
constexpr Call_arg call_id_time() { return 18; }
constexpr Call_arg call_id_run_vm() { return 19; }
constexpr Call_arg call_id_pause_vm() { return 20; }
constexpr Call_arg call_id_cache_clean_inv_region() { return 14; }
constexpr Call_arg call_id_cache_inv_region() { return 15; }
constexpr Call_arg call_id_ack_cap() { return 16; }
constexpr Call_arg call_id_delete_cap() { return 17; }
constexpr Call_arg call_id_timeout() { return 18; }
constexpr Call_arg call_id_timeout_max_us() { return 19; }
constexpr Call_arg call_id_time() { return 20; }
constexpr Call_arg call_id_run_vm() { return 21; }
constexpr Call_arg call_id_pause_vm() { return 22; }
/*****************************************************************
@@ -188,6 +190,32 @@ namespace Kernel {
}
/**
* Clean and invalidate D-Cache lines of the given memory region
*
* \param base base of the region within the current domain
* \param size size of the region
*/
inline void cache_clean_invalidate_data_region(addr_t const base,
size_t const size)
{
call(call_id_cache_clean_inv_region(), (Call_arg)base, (Call_arg)size);
}
/**
* Invalidate D-Cache lines of the given memory region
*
* \param base base of the region within the current domain
* \param size size of the region
*/
inline void cache_invalidate_data_region(addr_t const base,
size_t const size)
{
call(call_id_cache_inv_region(), (Call_arg)base, (Call_arg)size);
}
/**
* Send request message and await receipt of corresponding reply message
*