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acrn-hypervisor/hypervisor/include/common/softirq.h

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initial import internal commit: 14ac2bc2299032fa6714d1fefa7cf0987b3e3085 Signed-off-by: Eddie Dong <eddie.dong@intel.com>
2018-03-07 20:57:14 +08:00
/*
* Copyright (C) 2018 Intel Corporation. All rights reserved.
*
license: Replace license text with SPDX tag Replace the BSD-3-Clause boiler plate license text with an SPDX tag. Fixes: #189 Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
2018-05-26 01:49:13 +08:00
* SPDX-License-Identifier: BSD-3-Clause
initial import internal commit: 14ac2bc2299032fa6714d1fefa7cf0987b3e3085 Signed-off-by: Eddie Dong <eddie.dong@intel.com>
2018-03-07 20:57:14 +08:00
*/
#ifndef SOFTIRQ_H
#define SOFTIRQ_H
HV:treewide:Update return type of function ffs64 and ffz64 To reduce type conversion in HV: Update return type of function ffs64 and ffz64 as uint16; For ffs64, when the input is zero, INVALID_BIT_INDEX is returned; Update temporary variable type and return value check of caller when it call ffs64 or ffz64; Note: In the allocate_mem, there is no return value checking for calling ffz64, this will be updated latter. V1-->V2: INVALID_BIT_INDEX instead of INVALID_NUMBER Coding style fixing; INVALID_CPU_ID instead of INVALID_PCPU_ID or INVALID_VCPU_ID; "%hu" is used to print vcpu id (uint16_t); Add "U/UL" for constant value as needed. V2-->V3: ffs64 return INVALID_BIT_INDEX directly when the input value is zero; Remove excess "%hu" updates. V3-->V4: Clean up the comments of ffs64; Add "U" for constant value as needed. Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-02 14:05:58 +08:00
#define SOFTIRQ_TIMER 0U
hv: softirq: refine softirq 1. add register_softirq to register a softirq handler 2. rename exec_softirq to do_softirq; raise_softirq to fire_softirq. 3. in do_softirq call registered softirq handler not call the device softirq handle function directly 4. enable irq after vm exit and disable irq after the first call do_softirq before vm enter. 5. call do_softirq again when irq disabled to handle the risk unhandled softirq. 6. rename SOFTIRQ_DEV_ASSIGN to SOFTIRQ_PTDEV 7. remove SOFTIRQ_ATOMIC Signed-off-by: Li, Fei1 <fei1.li@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-30 15:58:36 +08:00
#define SOFTIRQ_PTDEV 1U
#define NR_SOFTIRQS 2U
initial import internal commit: 14ac2bc2299032fa6714d1fefa7cf0987b3e3085 Signed-off-by: Eddie Dong <eddie.dong@intel.com>
2018-03-07 20:57:14 +08:00
hv: softirq: refine softirq 1. add register_softirq to register a softirq handler 2. rename exec_softirq to do_softirq; raise_softirq to fire_softirq. 3. in do_softirq call registered softirq handler not call the device softirq handle function directly 4. enable irq after vm exit and disable irq after the first call do_softirq before vm enter. 5. call do_softirq again when irq disabled to handle the risk unhandled softirq. 6. rename SOFTIRQ_DEV_ASSIGN to SOFTIRQ_PTDEV 7. remove SOFTIRQ_ATOMIC Signed-off-by: Li, Fei1 <fei1.li@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-30 15:58:36 +08:00
typedef void (*softirq_handler)(uint16_t cpu_id);
initial import internal commit: 14ac2bc2299032fa6714d1fefa7cf0987b3e3085 Signed-off-by: Eddie Dong <eddie.dong@intel.com>
2018-03-07 20:57:14 +08:00
void init_softirq(void);
hv: softirq: refine softirq 1. add register_softirq to register a softirq handler 2. rename exec_softirq to do_softirq; raise_softirq to fire_softirq. 3. in do_softirq call registered softirq handler not call the device softirq handle function directly 4. enable irq after vm exit and disable irq after the first call do_softirq before vm enter. 5. call do_softirq again when irq disabled to handle the risk unhandled softirq. 6. rename SOFTIRQ_DEV_ASSIGN to SOFTIRQ_PTDEV 7. remove SOFTIRQ_ATOMIC Signed-off-by: Li, Fei1 <fei1.li@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-30 15:58:36 +08:00
void register_softirq(uint16_t nr, softirq_handler handler);
void fire_softirq(uint16_t nr);
void do_softirq(void);
initial import internal commit: 14ac2bc2299032fa6714d1fefa7cf0987b3e3085 Signed-off-by: Eddie Dong <eddie.dong@intel.com>
2018-03-07 20:57:14 +08:00
#endif /* SOFTIRQ_H */