mirror of
https://github.com/Droid-Deck/DroidDeck.git
synced 2026-10-14 19:27:09 -04:00
73 lines
2.8 KiB
C
73 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later */
|
|
#include "kgsl_compat.h"
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#ifdef __ANDROID__
|
|
#include <android/log.h>
|
|
#endif
|
|
|
|
#if __SIZEOF_POINTER__ == 8
|
|
_Static_assert(sizeof(struct kgsl_gpumem_alloc_id) == 48, "KGSL alloc ABI");
|
|
_Static_assert(sizeof(struct kgsl_gpuobj_alloc) == 48, "GPUOBJ alloc ABI");
|
|
_Static_assert(sizeof(struct kgsl_gpuobj_free) == 32, "GPUOBJ free ABI");
|
|
_Static_assert(sizeof(struct kgsl_gpuobj_info) == 48, "GPUOBJ info ABI");
|
|
#endif
|
|
|
|
static void report(const char *operation, int error) {
|
|
static unsigned successes, failures;
|
|
unsigned *counter = error ? &failures : &successes;
|
|
if (__atomic_fetch_add(counter, 1, __ATOMIC_RELAXED) >= (error ? 8u : 1u)) return;
|
|
int saved = errno;
|
|
#ifdef __ANDROID__
|
|
__android_log_print(error ? ANDROID_LOG_ERROR : ANDROID_LOG_INFO, "QuestKGSL",
|
|
"%s: GPUOBJ compatibility path, errno=%d", operation, error);
|
|
#else
|
|
fprintf(stderr, "[QuestKGSL] %s: GPUOBJ compatibility path, errno=%d\n", operation, error);
|
|
#endif
|
|
errno = saved;
|
|
}
|
|
|
|
int quest_kgsl_ioctl(quest_ioctl_fn real, int fd, unsigned long request, void *arg) {
|
|
int rc = real(fd, request, arg);
|
|
if (rc != -1 || (errno != EACCES && errno != EPERM) || arg == NULL) return rc;
|
|
|
|
if (request == IOCTL_KGSL_GPUMEM_ALLOC_ID) {
|
|
struct kgsl_gpumem_alloc_id *old = arg;
|
|
struct kgsl_gpuobj_alloc alloc = {.size = old->size, .flags = old->flags};
|
|
rc = real(fd, IOCTL_KGSL_GPUOBJ_ALLOC, &alloc);
|
|
if (rc != 0) { report("alloc failed", errno); return rc; }
|
|
struct kgsl_gpuobj_info info = {.id = alloc.id};
|
|
rc = real(fd, IOCTL_KGSL_GPUOBJ_INFO, &info);
|
|
int error = errno;
|
|
if (rc == 0 && (info.size > SIZE_MAX || alloc.mmapsize > SIZE_MAX ||
|
|
info.gpuaddr > ULONG_MAX || info.flags > UINT_MAX)) {
|
|
rc = -1;
|
|
error = EOVERFLOW;
|
|
}
|
|
if (rc != 0) {
|
|
struct kgsl_gpuobj_free release = {.id = alloc.id};
|
|
if (real(fd, IOCTL_KGSL_GPUOBJ_FREE, &release) != 0)
|
|
report("cleanup failed", errno);
|
|
errno = error;
|
|
report("info failed", error);
|
|
return rc;
|
|
}
|
|
old->id = alloc.id;
|
|
old->flags = (unsigned int)info.flags;
|
|
old->size = info.size;
|
|
old->mmapsize = alloc.mmapsize;
|
|
old->gpuaddr = info.gpuaddr;
|
|
report("allocation succeeded", 0);
|
|
return 0;
|
|
}
|
|
if (request == IOCTL_KGSL_GPUMEM_FREE_ID) {
|
|
const struct kgsl_gpumem_free_id *old = arg;
|
|
struct kgsl_gpuobj_free release = {.id = old->id};
|
|
rc = real(fd, IOCTL_KGSL_GPUOBJ_FREE, &release);
|
|
if (rc != 0) report("free failed", errno);
|
|
}
|
|
return rc;
|
|
}
|