mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-29 18:19:02 +00:00
20ea6adbf1
Build system: x86_64 Build-tested: bcm2708, bcm2709, bcm2710, bcm2711 Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B Signed-off-by: Marty Jones <mj8263788@gmail.com> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
97 lines
3.5 KiB
Diff
97 lines
3.5 KiB
Diff
From 0496e855a6e1acd60d4ae2e52ee906a4cffae014 Mon Sep 17 00:00:00 2001
|
|
From: Maxime Ripard <maxime@cerno.tech>
|
|
Date: Mon, 21 Jun 2021 16:07:22 +0200
|
|
Subject: [PATCH] drm/vc4: crtc: Rework the encoder retrieval code
|
|
(again)
|
|
|
|
It turns out the encoder retrieval code, in addition to being
|
|
unnecessarily complicated, has a bug when only the planes and crtcs are
|
|
affected by a given atomic commit.
|
|
|
|
Indeed, in such a case, either drm_atomic_get_old_connector_state or
|
|
drm_atomic_get_new_connector_state will return NULL and thus our encoder
|
|
retrieval code will not match on anything.
|
|
|
|
We can however simplify the code by using drm_for_each_encoder_mask, the
|
|
drm_crtc_state storing the encoders a given CRTC is connected to
|
|
directly and without relying on any other state.
|
|
|
|
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
|
|
---
|
|
drivers/gpu/drm/vc4/vc4_crtc.c | 30 +++++++++---------------------
|
|
drivers/gpu/drm/vc4/vc4_drv.h | 4 +---
|
|
2 files changed, 10 insertions(+), 24 deletions(-)
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
|
|
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
|
|
@@ -282,26 +282,14 @@ static u32 vc4_crtc_get_fifo_full_level_
|
|
* same CRTC.
|
|
*/
|
|
struct drm_encoder *vc4_get_crtc_encoder(struct drm_crtc *crtc,
|
|
- struct drm_atomic_state *state,
|
|
- struct drm_connector_state *(*get_state)(struct drm_atomic_state *state,
|
|
- struct drm_connector *connector))
|
|
+ struct drm_crtc_state *state)
|
|
{
|
|
- struct drm_connector *connector;
|
|
- struct drm_connector_list_iter conn_iter;
|
|
+ struct drm_encoder *encoder;
|
|
|
|
- drm_connector_list_iter_begin(crtc->dev, &conn_iter);
|
|
- drm_for_each_connector_iter(connector, &conn_iter) {
|
|
- struct drm_connector_state *conn_state = get_state(state, connector);
|
|
-
|
|
- if (!conn_state)
|
|
- continue;
|
|
-
|
|
- if (conn_state->crtc == crtc) {
|
|
- drm_connector_list_iter_end(&conn_iter);
|
|
- return connector->encoder;
|
|
- }
|
|
- }
|
|
- drm_connector_list_iter_end(&conn_iter);
|
|
+ WARN_ON(hweight32(state->encoder_mask) > 1);
|
|
+
|
|
+ drm_for_each_encoder_mask(encoder, crtc->dev, state->encoder_mask)
|
|
+ return encoder;
|
|
|
|
return NULL;
|
|
}
|
|
@@ -552,8 +540,7 @@ static void vc4_crtc_atomic_disable(stru
|
|
struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
|
|
crtc);
|
|
struct vc4_crtc_state *old_vc4_state = to_vc4_crtc_state(old_state);
|
|
- struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state,
|
|
- drm_atomic_get_old_connector_state);
|
|
+ struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, old_state);
|
|
struct drm_device *dev = crtc->dev;
|
|
|
|
require_hvs_enabled(dev);
|
|
@@ -580,10 +567,11 @@ static void vc4_crtc_atomic_disable(stru
|
|
static void vc4_crtc_atomic_enable(struct drm_crtc *crtc,
|
|
struct drm_atomic_state *state)
|
|
{
|
|
+ struct drm_crtc_state *new_state = drm_atomic_get_new_crtc_state(state,
|
|
+ crtc);
|
|
struct drm_device *dev = crtc->dev;
|
|
struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
|
|
- struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state,
|
|
- drm_atomic_get_new_connector_state);
|
|
+ struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, new_state);
|
|
struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
|
|
|
|
require_hvs_enabled(dev);
|
|
--- a/drivers/gpu/drm/vc4/vc4_drv.h
|
|
+++ b/drivers/gpu/drm/vc4/vc4_drv.h
|
|
@@ -545,9 +545,7 @@ vc4_crtc_to_vc4_pv_data(const struct vc4
|
|
}
|
|
|
|
struct drm_encoder *vc4_get_crtc_encoder(struct drm_crtc *crtc,
|
|
- struct drm_atomic_state *state,
|
|
- struct drm_connector_state *(*get_state)(struct drm_atomic_state *state,
|
|
- struct drm_connector *connector));
|
|
+ struct drm_crtc_state *state);
|
|
|
|
struct vc4_crtc_state {
|
|
struct drm_crtc_state base;
|