mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-19 10:53:58 +00:00
96459db58f
so try harder to get the CDMA sync interrupt delivered and also in a more efficient way: - wrap the whole process of sending and receiving the CDMA sync interrupt in a critical section so we don't get preempted, - send the CDMA sync interrupt to the CPU that is actually waiting for it to happen so we don't take a detour via another CPU, - instead of waiting for up to 15 seconds for the interrupt to trigger try the whole process for up to 15 times using a one second timeout (the code was also changed to just ignore belated interrupts of a previous tries should they appear). According to testing done by Peter Jeremy with the debugging also added as part of this commit the first two changes apparently are sufficient to now properly get the CDMA sync interrupts delivered at the first try though.
100 lines
2.9 KiB
C
100 lines
2.9 KiB
C
/*-
|
|
* Copyright (c) 2005 by Marius Strobl <marius@FreeBSD.org>.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions, and the following disclaimer,
|
|
* without modification, immediately at the beginning of the file.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _SPARC64_PCI_SCHIZOVAR_H_
|
|
#define _SPARC64_PCI_SCHIZOVAR_H_
|
|
|
|
struct schizo_softc;
|
|
|
|
struct schizo_iommu_state {
|
|
struct iommu_state sis_is;
|
|
struct schizo_softc *sis_sc;
|
|
};
|
|
|
|
struct schizo_softc {
|
|
struct bus_dma_methods sc_dma_methods;
|
|
|
|
device_t sc_dev;
|
|
|
|
struct mtx sc_sync_mtx;
|
|
uint64_t sc_sync_val;
|
|
|
|
struct mtx *sc_mtx;
|
|
|
|
phandle_t sc_node;
|
|
|
|
u_int sc_mode;
|
|
#define SCHIZO_MODE_SCZ 0
|
|
#define SCHIZO_MODE_TOM 1
|
|
#define SCHIZO_MODE_XMS 2
|
|
|
|
u_int sc_flags;
|
|
#define SCHIZO_FLAGS_BSWAR (1 << 0)
|
|
#define SCHIZO_FLAGS_XMODE (1 << 1)
|
|
|
|
bus_addr_t sc_cdma_map;
|
|
bus_addr_t sc_cdma_clr;
|
|
uint32_t sc_cdma_vec;
|
|
uint32_t sc_cdma_state;
|
|
#define SCHIZO_CDMA_STATE_IDLE (1 << 0)
|
|
#define SCHIZO_CDMA_STATE_PENDING (1 << 1)
|
|
#define SCHIZO_CDMA_STATE_RECEIVED (1 << 2)
|
|
|
|
u_int sc_half;
|
|
uint32_t sc_ign;
|
|
uint32_t sc_ver;
|
|
uint32_t sc_mrev;
|
|
|
|
struct resource *sc_mem_res[TOM_NREG];
|
|
struct resource *sc_irq_res[STX_NINTR];
|
|
void *sc_ihand[STX_NINTR];
|
|
|
|
struct schizo_iommu_state sc_is;
|
|
|
|
struct rman sc_pci_mem_rman;
|
|
struct rman sc_pci_io_rman;
|
|
bus_space_handle_t sc_pci_bh[STX_NRANGE];
|
|
bus_space_tag_t sc_pci_cfgt;
|
|
bus_space_tag_t sc_pci_iot;
|
|
bus_dma_tag_t sc_pci_dmat;
|
|
|
|
uint32_t sc_stats_dma_ce;
|
|
uint32_t sc_stats_pci_non_fatal;
|
|
|
|
uint8_t sc_pci_secbus;
|
|
uint8_t sc_pci_subbus;
|
|
|
|
struct ofw_bus_iinfo sc_pci_iinfo;
|
|
|
|
SLIST_ENTRY(schizo_softc) sc_link;
|
|
};
|
|
|
|
#endif /* !_SPARC64_PCI_SCHIZOVAR_H_ */
|