vasilito
f31522130f
Build system (5 gaps hardened): - COOKBOOK_OFFLINE defaults to true (fork-mode) - normalize_patch handles diff -ruN format - New 'repo validate-patches' command (25/25 relibc patches) - 14 patched Qt/Wayland/display recipes added to protected list - relibc archive regenerated with current patch chain Boot fixes (fixable): - Full ISO EFI partition: 16 MiB → 1 MiB (matches mini, BIOS hardcoded 2 MiB offset) - D-Bus system bus: absolute /usr/bin/dbus-daemon path (was skipped) - redbear-sessiond: absolute /usr/bin/redbear-sessiond path (was skipped) - daemon framework: silenced spurious INIT_NOTIFY warnings for oneshot_async services (P0-daemon-silence-init-notify.patch) - udev-shim: demoted INIT_NOTIFY warning to INFO (expected for oneshot_async) - relibc: comprehensive named semaphores (sem_open/close/unlink) replacing upstream todo!() stubs - greeterd: Wayland socket timeout 15s → 30s (compositor DRM wait) - greeter-ui: built and linked (header guard unification, sem_compat stubs removed) - mc: un-ignored in both configs, fixed glib/libiconv/pcre2 transitive deps - greeter config: removed stale keymapd dependency from display/greeter services - prefix toolchain: relibc headers synced, _RELIBC_STDLIB_H guard unified Unfixable (diagnosed, upstream): - i2c-hidd: abort on no-I2C-hardware (QEMU) — process::exit → relibc abort - kded6/greeter-ui: page fault 0x8 — Qt library null deref - Thread panics fd != -1 — Rust std library on Redox - DHCP timeout / eth0 MAC — QEMU user-mode networking - hwrngd/thermald — no hardware RNG/thermal in VM - live preload allocation — BIOS memory fragmentation, continues on demand
27 lines
1.3 KiB
Plaintext
27 lines
1.3 KiB
Plaintext
This is a historical description of what is now the kgsl backend
|
|
in libdrm freedreno (before the upstream drm/msm driver). Note
|
|
that the kgsl backend requires the "kgsl-drm" shim driver, which
|
|
usually is in disrepair (QCOM does not build it for android), and
|
|
due to random differences between different downstream android
|
|
kernel branches it may or may not work. So YMMV.
|
|
|
|
Original README:
|
|
----------------
|
|
|
|
Note that current msm kernel driver is a bit strange. It provides a
|
|
DRM interface for GEM, which is basically sufficient to have DRI2
|
|
working. But it does not provide KMS. And interface to 2d and 3d
|
|
cores is via different other devices (/dev/kgsl-*). This is not
|
|
quite how I'd write a DRM driver, but at this stage it is useful for
|
|
xf86-video-freedreno and fdre (and eventual gallium driver) to be
|
|
able to work on existing kernel driver from QCOM, to allow to
|
|
capture cmdstream dumps from the binary blob drivers without having
|
|
to reboot. So libdrm_freedreno attempts to hide most of the crazy.
|
|
The intention is that when there is a proper kernel driver, it will
|
|
be mostly just changes in libdrm_freedreno to adapt the gallium
|
|
driver and xf86-video-freedreno (ignoring the fbdev->KMS changes).
|
|
|
|
So don't look at freedreno as an example of how to write a libdrm
|
|
module or a DRM driver.. it is just an attempt to paper over a non-
|
|
standard kernel driver architecture.
|