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| author | Jon Santmyer <jon@jonsantmyer.com> | 2026-10-16 16:42:22 -0400 |
|---|---|---|
| committer | Jon Santmyer <jon@jonsantmyer.com> | 2026-10-16 16:42:22 -0400 |
| commit | d8aca3ff2501f9a77e22e5afb7a30380aed205af (patch) | |
| tree | a27db1749a35aea07317406f170a2d9b2a799ce7 /hal/shmem.c | |
| parent | 548506392b789f58b1556a6ffca917441e1d89fd (diff) | |
| download | jove-kernel-d8aca3ff2501f9a77e22e5afb7a30380aed205af.tar.gz jove-kernel-d8aca3ff2501f9a77e22e5afb7a30380aed205af.tar.bz2 jove-kernel-d8aca3ff2501f9a77e22e5afb7a30380aed205af.zip | |
remove explicit framebuffer in kernel. reduce locking in syscalls
Diffstat (limited to 'hal/shmem.c')
| -rw-r--r-- | hal/shmem.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/hal/shmem.c b/hal/shmem.c index 3785c2e..2928a1b 100644 --- a/hal/shmem.c +++ b/hal/shmem.c @@ -18,3 +18,15 @@ shmem_new(jove_owned_obj_t *untyped_obj) memset(untyped, 0, untyped->limit); return 0; } + +inline size_t +shmem_numpages(jove_owned_obj_t *shmem_obj) +{ + return obj_getvalue(shmem_obj) & JOVE_SMHEM_MAXPAGES; +} + +inline void* +shmem_deref(jove_owned_obj_t *shmem_obj) +{ + return phys_tovirt(obj_getvalue(shmem_obj) & ~JOVE_SMHEM_MAXPAGES); +} |