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/* $OpenBSD: smmuvar.h,v 1.2 2021/03/01 21:35:03 patrick Exp $ */
/*
* Copyright (c) 2021 Patrick Wildt <patrick@blueri.se>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
struct smmu_softc;
struct smmu_domain {
struct smmu_softc *sd_sc;
uint32_t sd_sid;
bus_dma_tag_t sd_dmat;
int sd_cb_idx;
int sd_smr_idx;
int sd_stage;
int sd_4level;
char sd_exname[32];
struct extent *sd_iovamap;
union {
struct smmuvp0 *l0; /* virtual to physical table 4 lvl */
struct smmuvp1 *l1; /* virtual to physical table 3 lvl */
} sd_vp;
struct mutex sd_mtx;
SIMPLEQ_ENTRY(smmu_domain) sd_list;
};
struct smmu_cb {
};
struct smmu_cb_irq {
struct smmu_softc *cbi_sc;
int cbi_idx;
};
struct smmu_smr {
uint16_t mask;
uint16_t id;
};
struct smmu_softc {
struct device sc_dev;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
bus_dma_tag_t sc_dmat;
int sc_is_mmu500;
int sc_is_ap806;
size_t sc_pagesize;
int sc_numpage;
int sc_num_context_banks;
int sc_num_s2_context_banks;
int sc_has_s1;
int sc_has_s2;
int sc_has_exids;
int sc_has_vmid16s;
int sc_num_streams;
uint16_t sc_stream_mask;
int sc_ipa_bits;
int sc_pa_bits;
int sc_va_bits;
struct smmu_smr **sc_smr;
struct smmu_cb **sc_cb;
int sc_coherent;
struct pool sc_pted_pool;
struct pool sc_vp_pool;
SIMPLEQ_HEAD(, smmu_domain) sc_domains;
};
int smmu_attach(struct smmu_softc *);
int smmu_global_irq(void *);
int smmu_context_irq(void *);
bus_dma_tag_t smmu_device_hook(struct smmu_softc *, uint32_t, bus_dma_tag_t);
void smmu_pci_device_hook(void *, uint32_t, struct pci_attach_args *);
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