Acelogic
1510d8c6ce
An EL2 monitor/hypervisor and toolchain that boots macOS 27 on the ASUS A16 (Snapdragon X2 Elite), with an Adreno Metal plug-in and IOGPU kext, and air2ir3, an AIR to Mesa ir3 shader compiler. MIT, with GPL-2.0 components listed in LICENSE and THIRD_PARTY_NOTICES.md. No Apple, Qualcomm, ASUS or Microsoft binaries are included.
51 lines
2.1 KiB
C
51 lines
2.1 KiB
C
/* SPDX-License-Identifier: MIT */
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#include "uat.h"
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enum sptm_result uat_get_info(const struct uat_config *c,
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const struct sptm_aperture *a, uint64_t query, uint64_t *value)
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{
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if (!c || !value || c->mode != 1 || c->va_bits < 40 || c->va_bits > 48 ||
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!c->segment_limit || c->segment_limit > UINT32_MAX ||
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(c->reserved_pa & 0x3fff)) return SPTM_BAD_CONFIG;
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uint64_t state = sptm_aperture_pointer(a, c->reserved_pa, 0xc000);
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if (!state || (state & 0x3fff)) return SPTM_BAD_ADDRESS;
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uint64_t result;
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/* SPTM ...b6c14 jump table at ...b6e80. The caller only defines x0;
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* x1..x7 may contain unrelated values and are not query arguments. */
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switch (query) {
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case 0: result = c->mode; break;
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case 2: result = state; break; /* private-mode state */
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case 3: result = c->va_bits - 1; break;
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case 4: result = ((1UL << (c->va_bits - 1)) - 1) & 0x7ff000000000UL; break;
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case 5: result = c->segment_limit; break;
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case 9: result = state + 0x8000; break; /* firmware shared L2 */
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default: return SPTM_UNSUPPORTED_OPTIONS;
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}
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*value = result;
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return SPTM_OK;
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}
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enum sptm_result uat_power_idle(const struct uat_config *c,
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const struct sptm_aperture *a, const struct sptm_memory *m)
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{
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uint64_t state=0;
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enum sptm_result r=uat_get_info(c,a,2,&state);
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if (r!=SPTM_OK) return r;
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if (!m || !m->map || c->segment_limit!=64) return SPTM_BAD_CONFIG;
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volatile uint8_t *pages=m->map(m->ctx,c->reserved_pa,0xc000);
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if (!pages) return SPTM_MEMORY_UNAVAILABLE;
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/* No GPU mapping or command producer exists. A future producer must
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* replace this pristine-state admission, not clear owned state. */
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uint64_t l1=state+0x4000,l2=(c->reserved_pa+0x8000)|3;
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for (unsigned i=0;i<0xc000;i++) {
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unsigned expected=0;
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if (i==0) expected=8;
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else if (i>=0x10 && i<0x18) expected=(unsigned)(l1>>(8*(i-0x10)))&255;
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else if (i==0x18) expected=64;
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else if (i==0x1a) expected=2;
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else if (i>=0x4010 && i<0x4018) expected=(unsigned)(l2>>(8*(i-0x4010)))&255;
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if (pages[i]!=expected) return SPTM_FRAME_BUSY;
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}
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return SPTM_OK;
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}
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