mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-29 01:59:02 +00:00
ca5c695a45
Deleted following upstreamed patches: bcm27xx: 950-0006-drm-vc4-hdmi-Fix-HPD-GPIO-detection.patch bcm27xx: 950-0420-drm-vc4-Adopt-the-dma-configuration-from-the-HVS-or-.patch bcm27xx: 950-0425-drm-vc4-A-present-but-empty-dmas-disables-audio.patch bcm27xx: 950-0432-vc4-drm-Avoid-full-hdmi-audio-fifo-writes.patch bcm27xx: 950-0433-vc4-drm-vc4_plane-Remove-subpixel-positioning-check.patch bcm27xx: 950-0435-drm-vc4-Correct-pixel-order-for-DSI0.patch bcm27xx: 950-0436-drm-vc4-Register-dsi0-as-the-correct-vc4-encoder-typ.patch bcm27xx: 950-0437-drm-vc4-Fix-dsi0-interrupt-support.patch bcm27xx: 950-0438-drm-vc4-Add-correct-stop-condition-to-vc4_dsi_encode.patch bcm27xx: 950-0443-drm-vc4-Fix-timings-for-interlaced-modes.patch bcm27xx: 950-0445-drm-vc4-Fix-margin-calculations-for-the-right-bottom.patch bcm27xx: 950-0475-drm-vc4-Reset-HDMI-MISC_CONTROL-register.patch bcm27xx: 950-0476-drm-vc4-Release-workaround-buffer-and-DMA-in-error-p.patch bcm27xx: 950-0477-drm-vc4-Correct-DSI-divider-calculations.patch bcm27xx: 950-0664-drm-vc4-dsi-Correct-max-divider-to-255-not-7.patch bcm53xx: 072-next-ARM_dts_BCM53015-add-mr26.patch mediatek: 920-linux-next-dts-mt7622-bpi-r64-fix-wps-button.patch Manually rebased following patches: bcm27xx: 950-0004-drm-vc4-hdmi-Remove-the-DDC-probing-for-status-detec.patch bcm27xx: 950-0700-net-phy-lan87xx-Decrease-phy-polling-rate.patch bcm27xx: 950-0711-drm-vc4-Rename-bridge-to-out_bridge.patch bcm27xx: 950-0713-drm-vc4-Remove-splitting-the-bridge-chain-from-the-d.patch bcm27xx: 950-0715-drm-vc4-Convert-vc4_dsi-to-using-a-bridge-instead-of.patch bcm27xx: 950-0787-vc4-drm-vc4_plane-Keep-fractional-source-coords-insi.patch bcm27xx: 950-0914-mmc-block-Don-t-do-single-sector-reads-during-recove.patch Runtime tested on turris-omnia and glinet-b1300. Tested-by: John Audia <therealgraysky@proton.me> [bcm2711/RPi4B, mt7622/RT3200] Signed-off-by: Petr Štetiar <ynezz@true.cz>
122 lines
4.2 KiB
Diff
122 lines
4.2 KiB
Diff
From 41a635c959507290ba41afa56ac143d648a69958 Mon Sep 17 00:00:00 2001
|
|
From: Daniel Vetter <daniel.vetter@ffwll.ch>
|
|
Date: Fri, 23 Oct 2020 14:39:23 +0200
|
|
Subject: [PATCH] drm/atomic-helpers: remove legacy_cursor_update hacks
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
The stuff never really worked, and leads to lots of fun because it
|
|
out-of-order frees atomic states. Which upsets KASAN, among other
|
|
things.
|
|
|
|
For async updates we now have a more solid solution with the
|
|
->atomic_async_check and ->atomic_async_commit hooks. Support for that
|
|
for msm and vc4 landed. nouveau and i915 have their own commit
|
|
routines, doing something similar.
|
|
|
|
For everyone else it's probably better to remove the use-after-free
|
|
bug, and encourage folks to use the async support instead. The
|
|
affected drivers which register a legacy cursor plane and don't either
|
|
use the new async stuff or their own commit routine are: amdgpu,
|
|
atmel, mediatek, qxl, rockchip, sti, sun4i, tegra, virtio, and vmwgfx.
|
|
|
|
Inspired by an amdgpu bug report.
|
|
|
|
v2: Drop RFC, I think with amdgpu converted over to use
|
|
atomic_async_check/commit done in
|
|
|
|
commit 674e78acae0dfb4beb56132e41cbae5b60f7d662
|
|
Author: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
|
|
Date: Wed Dec 5 14:59:07 2018 -0500
|
|
|
|
drm/amd/display: Add fast path for cursor plane updates
|
|
|
|
we don't have any driver anymore where we have userspace expecting
|
|
solid legacy cursor support _and_ they are using the atomic helpers in
|
|
their fully glory. So we can retire this.
|
|
|
|
v3: Paper over msm and i915 regression. The complete_all is the only
|
|
thing missing afaict.
|
|
|
|
v4: Rebased on recent kernel, added extra link for vc4 bug.
|
|
|
|
Link: https://bugzilla.kernel.org/show_bug.cgi?id=199425
|
|
Link: https://lore.kernel.org/all/20220221134155.125447-9-maxime@cerno.tech/
|
|
Cc: mikita.lipski@amd.com
|
|
Cc: Michel Dänzer <michel@daenzer.net>
|
|
Cc: harry.wentland@amd.com
|
|
Cc: Rob Clark <robdclark@gmail.com>
|
|
Cc: "Kazlauskas, Nicholas" <nicholas.kazlauskas@amd.com>
|
|
Tested-by: Maxime Ripard <maxime@cerno.tech>
|
|
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
|
|
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
|
|
---
|
|
drivers/gpu/drm/drm_atomic_helper.c | 13 -------------
|
|
drivers/gpu/drm/i915/display/intel_display.c | 13 +++++++++++++
|
|
drivers/gpu/drm/msm/msm_atomic.c | 2 ++
|
|
3 files changed, 15 insertions(+), 13 deletions(-)
|
|
|
|
--- a/drivers/gpu/drm/drm_atomic_helper.c
|
|
+++ b/drivers/gpu/drm/drm_atomic_helper.c
|
|
@@ -1498,13 +1498,6 @@ drm_atomic_helper_wait_for_vblanks(struc
|
|
int i, ret;
|
|
unsigned int crtc_mask = 0;
|
|
|
|
- /*
|
|
- * Legacy cursor ioctls are completely unsynced, and userspace
|
|
- * relies on that (by doing tons of cursor updates).
|
|
- */
|
|
- if (old_state->legacy_cursor_update)
|
|
- return;
|
|
-
|
|
for_each_oldnew_crtc_in_state(old_state, crtc, old_crtc_state, new_crtc_state, i) {
|
|
if (!new_crtc_state->active)
|
|
continue;
|
|
@@ -2132,12 +2125,6 @@ int drm_atomic_helper_setup_commit(struc
|
|
complete_all(&commit->flip_done);
|
|
continue;
|
|
}
|
|
-
|
|
- /* Legacy cursor updates are fully unsynced. */
|
|
- if (state->legacy_cursor_update) {
|
|
- complete_all(&commit->flip_done);
|
|
- continue;
|
|
- }
|
|
|
|
if (!new_crtc_state->event) {
|
|
commit->event = kzalloc(sizeof(*commit->event),
|
|
--- a/drivers/gpu/drm/i915/display/intel_display.c
|
|
+++ b/drivers/gpu/drm/i915/display/intel_display.c
|
|
@@ -10821,6 +10821,19 @@ static int intel_atomic_commit(struct dr
|
|
state->base.legacy_cursor_update = false;
|
|
}
|
|
|
|
+ /*
|
|
+ * FIXME: Cut over to (async) commit helpers instead of hand-rolling
|
|
+ * everything.
|
|
+ */
|
|
+ if (state->base.legacy_cursor_update) {
|
|
+ struct intel_crtc_state *new_crtc_state;
|
|
+ struct intel_crtc *crtc;
|
|
+ int i;
|
|
+
|
|
+ for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i)
|
|
+ complete_all(&new_crtc_state->uapi.commit->flip_done);
|
|
+ }
|
|
+
|
|
ret = intel_atomic_prepare_commit(state);
|
|
if (ret) {
|
|
drm_dbg_atomic(&dev_priv->drm,
|
|
--- a/drivers/gpu/drm/msm/msm_atomic.c
|
|
+++ b/drivers/gpu/drm/msm/msm_atomic.c
|
|
@@ -231,6 +231,8 @@ void msm_atomic_commit_tail(struct drm_a
|
|
/* async updates are limited to single-crtc updates: */
|
|
WARN_ON(crtc_mask != drm_crtc_mask(async_crtc));
|
|
|
|
+ complete_all(&async_crtc->state->commit->flip_done);
|
|
+
|
|
/*
|
|
* Start timer if we don't already have an update pending
|
|
* on this crtc:
|