Hi, Am Dienstag, 26. März 2019, 21:44:56 CET schrieb Sean Paul: > From: Sean Paul <seanp...@chromium.org> > > Instead of rolling our own implementation for tracking when PSR should > be [in]active, use the new self refresh helpers to do the heavy lifting.
I only got patches 3-5 and had to pull 1+2 from patchwork, the following applies to the whole series though. While my Kevin display does still generally work with these 5 patches applied functionality has regressed somehow. Environment is a standard Debian with framebuffer console and sddm login manager. With this patchset applied, when sddm starts I only get the see the login screen after I move the mouse, similarly the blinking cursor in the password field also only blinks when I actively move the cursor and stops when there is no mouse movement. With all 5 patches reverted this goes back to normal. So it looks like the PSR gets a bit too agressive with these? Heiko > Changes in v2: > - updated to reflect changes made in the helpers > > Link to v1: > https://patchwork.freedesktop.org/patch/msgid/20190228210939.83386-4-s...@poorly.run > > Cc: Zain Wang <w...@rock-chips.com> > Cc: Tomasz Figa <tf...@chromium.org> > Signed-off-by: Sean Paul <seanp...@chromium.org> > --- > .../drm/bridge/analogix/analogix_dp_core.c | 213 ++++++++----- > .../drm/bridge/analogix/analogix_dp_core.h | 2 +- > drivers/gpu/drm/rockchip/Makefile | 3 +- > .../gpu/drm/rockchip/analogix_dp-rockchip.c | 70 ++--- > drivers/gpu/drm/rockchip/rockchip_drm_fb.c | 16 - > drivers/gpu/drm/rockchip/rockchip_drm_psr.c | 290 ------------------ > drivers/gpu/drm/rockchip/rockchip_drm_psr.h | 30 -- > drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 33 +- > include/drm/bridge/analogix_dp.h | 4 +- > 9 files changed, 185 insertions(+), 476 deletions(-) > delete mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_psr.c > delete mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_psr.h > > diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c > b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c > index af34554a5a02..c503fe3bc3b3 100644 > --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c > +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c > @@ -106,63 +106,13 @@ static int analogix_dp_detect_hpd(struct > analogix_dp_device *dp) > return 0; > } > > -int analogix_dp_psr_enabled(struct analogix_dp_device *dp) > +bool analogix_dp_self_refresh_changed(struct analogix_dp_device *dp) > { > - > - return dp->psr_enable; > + return dp->connector.state->self_refresh_changed; > } > -EXPORT_SYMBOL_GPL(analogix_dp_psr_enabled); > +EXPORT_SYMBOL_GPL(analogix_dp_self_refresh_changed); > > -int analogix_dp_enable_psr(struct analogix_dp_device *dp) > -{ > - struct edp_vsc_psr psr_vsc; > - > - if (!dp->psr_enable) > - return 0; > - > - /* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */ > - memset(&psr_vsc, 0, sizeof(psr_vsc)); > - psr_vsc.sdp_header.HB0 = 0; > - psr_vsc.sdp_header.HB1 = 0x7; > - psr_vsc.sdp_header.HB2 = 0x2; > - psr_vsc.sdp_header.HB3 = 0x8; > - > - psr_vsc.DB0 = 0; > - psr_vsc.DB1 = EDP_VSC_PSR_STATE_ACTIVE | EDP_VSC_PSR_CRC_VALUES_VALID; > - > - return analogix_dp_send_psr_spd(dp, &psr_vsc, true); > -} > -EXPORT_SYMBOL_GPL(analogix_dp_enable_psr); > - > -int analogix_dp_disable_psr(struct analogix_dp_device *dp) > -{ > - struct edp_vsc_psr psr_vsc; > - int ret; > - > - if (!dp->psr_enable) > - return 0; > - > - /* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */ > - memset(&psr_vsc, 0, sizeof(psr_vsc)); > - psr_vsc.sdp_header.HB0 = 0; > - psr_vsc.sdp_header.HB1 = 0x7; > - psr_vsc.sdp_header.HB2 = 0x2; > - psr_vsc.sdp_header.HB3 = 0x8; > - > - psr_vsc.DB0 = 0; > - psr_vsc.DB1 = 0; > - > - ret = drm_dp_dpcd_writeb(&dp->aux, DP_SET_POWER, DP_SET_POWER_D0); > - if (ret != 1) { > - dev_err(dp->dev, "Failed to set DP Power0 %d\n", ret); > - return ret; > - } > - > - return analogix_dp_send_psr_spd(dp, &psr_vsc, false); > -} > -EXPORT_SYMBOL_GPL(analogix_dp_disable_psr); > - > -static int analogix_dp_detect_sink_psr(struct analogix_dp_device *dp) > +static bool analogix_dp_detect_sink_psr(struct analogix_dp_device *dp) > { > unsigned char psr_version; > int ret; > @@ -170,14 +120,11 @@ static int analogix_dp_detect_sink_psr(struct > analogix_dp_device *dp) > ret = drm_dp_dpcd_readb(&dp->aux, DP_PSR_SUPPORT, &psr_version); > if (ret != 1) { > dev_err(dp->dev, "failed to get PSR version, disable it\n"); > - return ret; > + return false; > } > > dev_dbg(dp->dev, "Panel PSR version : %x\n", psr_version); > - > - dp->psr_enable = (psr_version & DP_PSR_IS_SUPPORTED) ? true : false; > - > - return 0; > + return psr_version & DP_PSR_IS_SUPPORTED; > } > > static int analogix_dp_enable_sink_psr(struct analogix_dp_device *dp) > @@ -200,7 +147,7 @@ static int analogix_dp_enable_sink_psr(struct > analogix_dp_device *dp) > } > > /* Main-Link transmitter remains active during PSR active states */ > - psr_en = DP_PSR_MAIN_LINK_ACTIVE | DP_PSR_CRC_VERIFICATION; > + psr_en = DP_PSR_CRC_VERIFICATION; > ret = drm_dp_dpcd_writeb(&dp->aux, DP_PSR_EN_CFG, psr_en); > if (ret != 1) { > dev_err(dp->dev, "failed to set panel psr\n"); > @@ -208,8 +155,7 @@ static int analogix_dp_enable_sink_psr(struct > analogix_dp_device *dp) > } > > /* Enable psr function */ > - psr_en = DP_PSR_ENABLE | DP_PSR_MAIN_LINK_ACTIVE | > - DP_PSR_CRC_VERIFICATION; > + psr_en = DP_PSR_ENABLE | DP_PSR_CRC_VERIFICATION; > ret = drm_dp_dpcd_writeb(&dp->aux, DP_PSR_EN_CFG, psr_en); > if (ret != 1) { > dev_err(dp->dev, "failed to set panel psr\n"); > @@ -218,10 +164,11 @@ static int analogix_dp_enable_sink_psr(struct > analogix_dp_device *dp) > > analogix_dp_enable_psr_crc(dp); > > + dp->psr_supported = true; > + > return 0; > end: > dev_err(dp->dev, "enable psr fail, force to disable psr\n"); > - dp->psr_enable = false; > > return ret; > } > @@ -1036,25 +983,90 @@ static int analogix_dp_commit(struct > analogix_dp_device *dp) > } > } > > - ret = analogix_dp_detect_sink_psr(dp); > - if (ret) > - return ret; > - > /* Check whether panel supports fast training */ > ret = analogix_dp_fast_link_train_detection(dp); > if (ret) > - dp->psr_enable = false; > + return ret; > > - if (dp->psr_enable) { > + if (analogix_dp_detect_sink_psr(dp)) { > ret = analogix_dp_enable_sink_psr(dp); > if (ret) > return ret; > } > > + return ret; > +} > + > +static int analogix_dp_enable_psr(struct analogix_dp_device *dp) > +{ > + struct edp_vsc_psr psr_vsc; > + int ret; > + u8 sink; > + > + ret = drm_dp_dpcd_readb(&dp->aux, DP_PSR_STATUS, &sink); > + if (ret != 1) > + DRM_DEV_ERROR(dp->dev, "Failed to read psr status %d\n", ret); > + else if (sink == DP_PSR_SINK_ACTIVE_RFB) > + return 0; > + > + /* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */ > + memset(&psr_vsc, 0, sizeof(psr_vsc)); > + psr_vsc.sdp_header.HB0 = 0; > + psr_vsc.sdp_header.HB1 = 0x7; > + psr_vsc.sdp_header.HB2 = 0x2; > + psr_vsc.sdp_header.HB3 = 0x8; > + psr_vsc.DB0 = 0; > + psr_vsc.DB1 = EDP_VSC_PSR_STATE_ACTIVE | EDP_VSC_PSR_CRC_VALUES_VALID; > + > + ret = analogix_dp_send_psr_spd(dp, &psr_vsc, true); > + if (!ret) > + analogix_dp_set_analog_power_down(dp, POWER_ALL, true); > > return ret; > } > > +static int analogix_dp_disable_psr(struct analogix_dp_device *dp) > +{ > + struct edp_vsc_psr psr_vsc; > + int ret; > + u8 sink; > + > + analogix_dp_set_analog_power_down(dp, POWER_ALL, false); > + > + ret = drm_dp_dpcd_writeb(&dp->aux, DP_SET_POWER, DP_SET_POWER_D0); > + if (ret != 1) { > + DRM_DEV_ERROR(dp->dev, "Failed to set DP Power0 %d\n", ret); > + return ret; > + } > + > + ret = drm_dp_dpcd_readb(&dp->aux, DP_PSR_STATUS, &sink); > + if (ret != 1) { > + DRM_DEV_ERROR(dp->dev, "Failed to read psr status %d\n", ret); > + return ret; > + } else if (sink == DP_PSR_SINK_INACTIVE) { > + DRM_DEV_ERROR(dp->dev, "sink inactive, skip disable psr"); > + return 0; > + } > + > + ret = analogix_dp_train_link(dp); > + if (ret) { > + DRM_DEV_ERROR(dp->dev, "Failed to train the link %d\n", ret); > + return ret; > + } > + > + /* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */ > + memset(&psr_vsc, 0, sizeof(psr_vsc)); > + psr_vsc.sdp_header.HB0 = 0; > + psr_vsc.sdp_header.HB1 = 0x7; > + psr_vsc.sdp_header.HB2 = 0x2; > + psr_vsc.sdp_header.HB3 = 0x8; > + > + psr_vsc.DB0 = 0; > + psr_vsc.DB1 = 0; > + > + return analogix_dp_send_psr_spd(dp, &psr_vsc, true); > +} > + > /* > * This function is a bit of a catch-all for panel preparation, hopefully > * simplifying the logic of functions that need to prepare/unprepare the > panel > @@ -1145,9 +1157,23 @@ analogix_dp_best_encoder(struct drm_connector > *connector) > return dp->encoder; > } > > + > +int analogix_dp_atomic_check(struct drm_connector *connector, > + struct drm_connector_state *state) > +{ > + struct analogix_dp_device *dp = to_dp(connector); > + > + state->self_refresh_aware = true; > + if (state->self_refresh_active && !dp->psr_supported) > + return -EINVAL; > + > + return 0; > +} > + > static const struct drm_connector_helper_funcs > analogix_dp_connector_helper_funcs = { > .get_modes = analogix_dp_get_modes, > .best_encoder = analogix_dp_best_encoder, > + .atomic_check = analogix_dp_atomic_check, > }; > > static enum drm_connector_status > @@ -1244,6 +1270,10 @@ static void analogix_dp_bridge_pre_enable(struct > drm_bridge *bridge) > struct analogix_dp_device *dp = bridge->driver_private; > int ret; > > + /* Don't touch the panel if we're coming back from PSR */ > + if (dp->connector.state->self_refresh_changed) > + return; > + > ret = analogix_dp_prepare_panel(dp, true, true); > if (ret) > DRM_ERROR("failed to setup the panel ret = %d\n", ret); > @@ -1309,6 +1339,14 @@ static void analogix_dp_bridge_enable(struct > drm_bridge *bridge) > struct analogix_dp_device *dp = bridge->driver_private; > int timeout_loop = 0; > > + /* Not a full enable, just disable PSR and continue */ > + if (dp->connector.state->self_refresh_changed) { > + int ret = analogix_dp_disable_psr(dp); > + if (ret) > + DRM_ERROR("Failed to disable psr %d\n", ret); > + return; > + } > + > if (dp->dpms_mode == DRM_MODE_DPMS_ON) > return; > > @@ -1356,11 +1394,37 @@ static void analogix_dp_bridge_disable(struct > drm_bridge *bridge) > if (ret) > DRM_ERROR("failed to setup the panel ret = %d\n", ret); > > - dp->psr_enable = false; > dp->fast_train_enable = false; > + dp->psr_supported = false; > dp->dpms_mode = DRM_MODE_DPMS_OFF; > } > > +static void analogix_dp_bridge_atomic_disable(struct drm_bridge *bridge) > +{ > + struct analogix_dp_device *dp = bridge->driver_private; > + struct drm_connector_state *conn_state = dp->connector.state; > + > + /* Don't do a full disable on PSR transitions */ > + if (conn_state->crtc && conn_state->self_refresh_changed) > + return; > + > + analogix_dp_bridge_disable(bridge); > +} > + > +static void analogix_dp_bridge_post_disable(struct drm_bridge *bridge) > +{ > + struct analogix_dp_device *dp = bridge->driver_private; > + struct drm_connector_state *conn_state = dp->connector.state; > + int ret; > + > + if (conn_state->self_refresh_active) { > + ret = analogix_dp_enable_psr(dp); > + if (ret) > + DRM_ERROR("Failed to enable psr (%d)\n", ret); > + return; > + } > +} > + > static void analogix_dp_bridge_mode_set(struct drm_bridge *bridge, > const struct drm_display_mode *orig_mode, > const struct drm_display_mode *mode) > @@ -1440,16 +1504,11 @@ static void analogix_dp_bridge_mode_set(struct > drm_bridge *bridge, > video->interlaced = true; > } > > -static void analogix_dp_bridge_nop(struct drm_bridge *bridge) > -{ > - /* do nothing */ > -} > - > static const struct drm_bridge_funcs analogix_dp_bridge_funcs = { > .pre_enable = analogix_dp_bridge_pre_enable, > .enable = analogix_dp_bridge_enable, > - .disable = analogix_dp_bridge_disable, > - .post_disable = analogix_dp_bridge_nop, > + .disable = analogix_dp_bridge_atomic_disable, > + .post_disable = analogix_dp_bridge_post_disable, > .mode_set = analogix_dp_bridge_mode_set, > .attach = analogix_dp_bridge_attach, > }; > diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h > b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h > index 769255dc6e99..d937fa3d9ee8 100644 > --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h > +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h > @@ -173,8 +173,8 @@ struct analogix_dp_device { > int dpms_mode; > int hpd_gpio; > bool force_hpd; > - bool psr_enable; > bool fast_train_enable; > + bool psr_supported; > > struct mutex panel_lock; > bool panel_is_modeset; > diff --git a/drivers/gpu/drm/rockchip/Makefile > b/drivers/gpu/drm/rockchip/Makefile > index f6fc9d5dd0ad..a777726c23cb 100644 > --- a/drivers/gpu/drm/rockchip/Makefile > +++ b/drivers/gpu/drm/rockchip/Makefile > @@ -4,8 +4,7 @@ > # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher. > > rockchipdrm-y := rockchip_drm_drv.o rockchip_drm_fb.o \ > - rockchip_drm_gem.o rockchip_drm_psr.o \ > - rockchip_drm_vop.o rockchip_vop_reg.o > + rockchip_drm_gem.o rockchip_drm_vop.o rockchip_vop_reg.o > rockchipdrm-$(CONFIG_DRM_FBDEV_EMULATION) += rockchip_drm_fbdev.o > > rockchipdrm-$(CONFIG_ROCKCHIP_ANALOGIX_DP) += analogix_dp-rockchip.o > diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c > b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c > index bc4423624209..8f42c38848db 100644 > --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c > +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c > @@ -32,7 +32,6 @@ > #include <drm/bridge/analogix_dp.h> > > #include "rockchip_drm_drv.h" > -#include "rockchip_drm_psr.h" > #include "rockchip_drm_vop.h" > > #define RK3288_GRF_SOC_CON6 0x25c > @@ -77,29 +76,6 @@ struct rockchip_dp_device { > struct analogix_dp_plat_data plat_data; > }; > > -static int analogix_dp_psr_set(struct drm_encoder *encoder, bool enabled) > -{ > - struct rockchip_dp_device *dp = to_dp(encoder); > - int ret; > - > - if (!analogix_dp_psr_enabled(dp->adp)) > - return 0; > - > - DRM_DEV_DEBUG(dp->dev, "%s PSR...\n", enabled ? "Entry" : "Exit"); > - > - ret = rockchip_drm_wait_vact_end(dp->encoder.crtc, > - PSR_WAIT_LINE_FLAG_TIMEOUT_MS); > - if (ret) { > - DRM_DEV_ERROR(dp->dev, "line flag interrupt did not arrive\n"); > - return -ETIMEDOUT; > - } > - > - if (enabled) > - return analogix_dp_enable_psr(dp->adp); > - else > - return analogix_dp_disable_psr(dp->adp); > -} > - > static int rockchip_dp_pre_init(struct rockchip_dp_device *dp) > { > reset_control_assert(dp->rst); > @@ -130,21 +106,9 @@ static int rockchip_dp_poweron_start(struct > analogix_dp_plat_data *plat_data) > return ret; > } > > -static int rockchip_dp_poweron_end(struct analogix_dp_plat_data *plat_data) > -{ > - struct rockchip_dp_device *dp = to_dp(plat_data); > - > - return rockchip_drm_psr_inhibit_put(&dp->encoder); > -} > - > static int rockchip_dp_powerdown(struct analogix_dp_plat_data *plat_data) > { > struct rockchip_dp_device *dp = to_dp(plat_data); > - int ret; > - > - ret = rockchip_drm_psr_inhibit_get(&dp->encoder); > - if (ret != 0) > - return ret; > > clk_disable_unprepare(dp->pclk); > > @@ -190,6 +154,9 @@ static void rockchip_dp_drm_encoder_enable(struct > drm_encoder *encoder) > int ret; > u32 val; > > + if (analogix_dp_self_refresh_changed(dp->adp)) > + return; > + > ret = drm_of_encoder_active_endpoint_id(dp->dev->of_node, encoder); > if (ret < 0) > return; > @@ -214,9 +181,24 @@ static void rockchip_dp_drm_encoder_enable(struct > drm_encoder *encoder) > clk_disable_unprepare(dp->grfclk); > } > > -static void rockchip_dp_drm_encoder_nop(struct drm_encoder *encoder) > +static void rockchip_dp_drm_encoder_disable(struct drm_encoder *encoder) > { > - /* do nothing */ > + struct rockchip_dp_device *dp = to_dp(encoder); > + struct drm_crtc *crtc; > + int ret; > + > + drm_for_each_crtc(crtc, dp->drm_dev) { > + if (!(crtc->state->encoder_mask & drm_encoder_mask(encoder))) > + continue; > + > + if (!crtc->state->self_refresh_active) > + continue; > + > + ret = rockchip_drm_wait_vact_end(crtc, > + PSR_WAIT_LINE_FLAG_TIMEOUT_MS); > + if (ret) > + DRM_DEV_ERROR(dp->dev, "line flag irq timed out\n"); > + } > } > > static int > @@ -246,7 +228,7 @@ static struct drm_encoder_helper_funcs > rockchip_dp_encoder_helper_funcs = { > .mode_fixup = rockchip_dp_drm_encoder_mode_fixup, > .mode_set = rockchip_dp_drm_encoder_mode_set, > .enable = rockchip_dp_drm_encoder_enable, > - .disable = rockchip_dp_drm_encoder_nop, > + .disable = rockchip_dp_drm_encoder_disable, > .atomic_check = rockchip_dp_drm_encoder_atomic_check, > }; > > @@ -338,23 +320,16 @@ static int rockchip_dp_bind(struct device *dev, struct > device *master, > > dp->plat_data.dev_type = dp->data->chip_type; > dp->plat_data.power_on_start = rockchip_dp_poweron_start; > - dp->plat_data.power_on_end = rockchip_dp_poweron_end; > dp->plat_data.power_off = rockchip_dp_powerdown; > dp->plat_data.get_modes = rockchip_dp_get_modes; > > - ret = rockchip_drm_psr_register(&dp->encoder, analogix_dp_psr_set); > - if (ret < 0) > - goto err_cleanup_encoder; > - > dp->adp = analogix_dp_bind(dev, dp->drm_dev, &dp->plat_data); > if (IS_ERR(dp->adp)) { > ret = PTR_ERR(dp->adp); > - goto err_unreg_psr; > + goto err_cleanup_encoder; > } > > return 0; > -err_unreg_psr: > - rockchip_drm_psr_unregister(&dp->encoder); > err_cleanup_encoder: > dp->encoder.funcs->destroy(&dp->encoder); > return ret; > @@ -366,7 +341,6 @@ static void rockchip_dp_unbind(struct device *dev, struct > device *master, > struct rockchip_dp_device *dp = dev_get_drvdata(dev); > > analogix_dp_unbind(dp->adp); > - rockchip_drm_psr_unregister(&dp->encoder); > dp->encoder.funcs->destroy(&dp->encoder); > > dp->adp = ERR_PTR(-ENODEV); > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c > b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c > index 97438bbbe389..7e121875e3c9 100644 > --- a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c > @@ -23,22 +23,10 @@ > #include "rockchip_drm_drv.h" > #include "rockchip_drm_fb.h" > #include "rockchip_drm_gem.h" > -#include "rockchip_drm_psr.h" > - > -static int rockchip_drm_fb_dirty(struct drm_framebuffer *fb, > - struct drm_file *file, > - unsigned int flags, unsigned int color, > - struct drm_clip_rect *clips, > - unsigned int num_clips) > -{ > - rockchip_drm_psr_flush_all(fb->dev); > - return 0; > -} > > static const struct drm_framebuffer_funcs rockchip_drm_fb_funcs = { > .destroy = drm_gem_fb_destroy, > .create_handle = drm_gem_fb_create_handle, > - .dirty = rockchip_drm_fb_dirty, > }; > > static struct drm_framebuffer * > @@ -132,8 +120,6 @@ rockchip_atomic_helper_commit_tail_rpm(struct > drm_atomic_state *old_state) > { > struct drm_device *dev = old_state->dev; > > - rockchip_drm_psr_inhibit_get_state(old_state); > - > drm_atomic_helper_commit_modeset_disables(dev, old_state); > > drm_atomic_helper_commit_modeset_enables(dev, old_state); > @@ -141,8 +127,6 @@ rockchip_atomic_helper_commit_tail_rpm(struct > drm_atomic_state *old_state) > drm_atomic_helper_commit_planes(dev, old_state, > DRM_PLANE_COMMIT_ACTIVE_ONLY); > > - rockchip_drm_psr_inhibit_put_state(old_state); > - > drm_atomic_helper_commit_hw_done(old_state); > > drm_atomic_helper_wait_for_vblanks(dev, old_state); > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_psr.c > b/drivers/gpu/drm/rockchip/rockchip_drm_psr.c > deleted file mode 100644 > index a0c8bd235b67..000000000000 > --- a/drivers/gpu/drm/rockchip/rockchip_drm_psr.c > +++ /dev/null > @@ -1,290 +0,0 @@ > -/* > - * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd > - * Author: Yakir Yang <y...@rock-chips.com> > - * > - * This software is licensed under the terms of the GNU General Public > - * License version 2, as published by the Free Software Foundation, and > - * may be copied, distributed, and modified under those terms. > - * > - * This program is distributed in the hope that it will be useful, > - * but WITHOUT ANY WARRANTY; without even the implied warranty of > - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > - * GNU General Public License for more details. > - */ > - > -#include <drm/drmP.h> > -#include <drm/drm_atomic.h> > -#include <drm/drm_probe_helper.h> > - > -#include "rockchip_drm_drv.h" > -#include "rockchip_drm_psr.h" > - > -#define PSR_FLUSH_TIMEOUT_MS 100 > - > -struct psr_drv { > - struct list_head list; > - struct drm_encoder *encoder; > - > - struct mutex lock; > - int inhibit_count; > - bool enabled; > - > - struct delayed_work flush_work; > - > - int (*set)(struct drm_encoder *encoder, bool enable); > -}; > - > -static struct psr_drv *find_psr_by_encoder(struct drm_encoder *encoder) > -{ > - struct rockchip_drm_private *drm_drv = encoder->dev->dev_private; > - struct psr_drv *psr; > - > - mutex_lock(&drm_drv->psr_list_lock); > - list_for_each_entry(psr, &drm_drv->psr_list, list) { > - if (psr->encoder == encoder) > - goto out; > - } > - psr = ERR_PTR(-ENODEV); > - > -out: > - mutex_unlock(&drm_drv->psr_list_lock); > - return psr; > -} > - > -static int psr_set_state_locked(struct psr_drv *psr, bool enable) > -{ > - int ret; > - > - if (psr->inhibit_count > 0) > - return -EINVAL; > - > - if (enable == psr->enabled) > - return 0; > - > - ret = psr->set(psr->encoder, enable); > - if (ret) > - return ret; > - > - psr->enabled = enable; > - return 0; > -} > - > -static void psr_flush_handler(struct work_struct *work) > -{ > - struct psr_drv *psr = container_of(to_delayed_work(work), > - struct psr_drv, flush_work); > - > - mutex_lock(&psr->lock); > - psr_set_state_locked(psr, true); > - mutex_unlock(&psr->lock); > -} > - > -/** > - * rockchip_drm_psr_inhibit_put - release PSR inhibit on given encoder > - * @encoder: encoder to obtain the PSR encoder > - * > - * Decrements PSR inhibit count on given encoder. Should be called only > - * for a PSR inhibit count increment done before. If PSR inhibit counter > - * reaches zero, PSR flush work is scheduled to make the hardware enter > - * PSR mode in PSR_FLUSH_TIMEOUT_MS. > - * > - * Returns: > - * Zero on success, negative errno on failure. > - */ > -int rockchip_drm_psr_inhibit_put(struct drm_encoder *encoder) > -{ > - struct psr_drv *psr = find_psr_by_encoder(encoder); > - > - if (IS_ERR(psr)) > - return PTR_ERR(psr); > - > - mutex_lock(&psr->lock); > - --psr->inhibit_count; > - WARN_ON(psr->inhibit_count < 0); > - if (!psr->inhibit_count) > - mod_delayed_work(system_wq, &psr->flush_work, > - PSR_FLUSH_TIMEOUT_MS); > - mutex_unlock(&psr->lock); > - > - return 0; > -} > -EXPORT_SYMBOL(rockchip_drm_psr_inhibit_put); > - > -void rockchip_drm_psr_inhibit_get_state(struct drm_atomic_state *state) > -{ > - struct drm_crtc *crtc; > - struct drm_crtc_state *crtc_state; > - struct drm_encoder *encoder; > - u32 encoder_mask = 0; > - int i; > - > - for_each_old_crtc_in_state(state, crtc, crtc_state, i) { > - encoder_mask |= crtc_state->encoder_mask; > - encoder_mask |= crtc->state->encoder_mask; > - } > - > - drm_for_each_encoder_mask(encoder, state->dev, encoder_mask) > - rockchip_drm_psr_inhibit_get(encoder); > -} > -EXPORT_SYMBOL(rockchip_drm_psr_inhibit_get_state); > - > -void rockchip_drm_psr_inhibit_put_state(struct drm_atomic_state *state) > -{ > - struct drm_crtc *crtc; > - struct drm_crtc_state *crtc_state; > - struct drm_encoder *encoder; > - u32 encoder_mask = 0; > - int i; > - > - for_each_old_crtc_in_state(state, crtc, crtc_state, i) { > - encoder_mask |= crtc_state->encoder_mask; > - encoder_mask |= crtc->state->encoder_mask; > - } > - > - drm_for_each_encoder_mask(encoder, state->dev, encoder_mask) > - rockchip_drm_psr_inhibit_put(encoder); > -} > -EXPORT_SYMBOL(rockchip_drm_psr_inhibit_put_state); > - > -/** > - * rockchip_drm_psr_inhibit_get - acquire PSR inhibit on given encoder > - * @encoder: encoder to obtain the PSR encoder > - * > - * Increments PSR inhibit count on given encoder. This function guarantees > - * that after it returns PSR is turned off on given encoder and no > PSR-related > - * hardware state change occurs at least until a matching call to > - * rockchip_drm_psr_inhibit_put() is done. > - * > - * Returns: > - * Zero on success, negative errno on failure. > - */ > -int rockchip_drm_psr_inhibit_get(struct drm_encoder *encoder) > -{ > - struct psr_drv *psr = find_psr_by_encoder(encoder); > - > - if (IS_ERR(psr)) > - return PTR_ERR(psr); > - > - mutex_lock(&psr->lock); > - psr_set_state_locked(psr, false); > - ++psr->inhibit_count; > - mutex_unlock(&psr->lock); > - cancel_delayed_work_sync(&psr->flush_work); > - > - return 0; > -} > -EXPORT_SYMBOL(rockchip_drm_psr_inhibit_get); > - > -static void rockchip_drm_do_flush(struct psr_drv *psr) > -{ > - cancel_delayed_work_sync(&psr->flush_work); > - > - mutex_lock(&psr->lock); > - if (!psr_set_state_locked(psr, false)) > - mod_delayed_work(system_wq, &psr->flush_work, > - PSR_FLUSH_TIMEOUT_MS); > - mutex_unlock(&psr->lock); > -} > - > -/** > - * rockchip_drm_psr_flush_all - force to flush all registered PSR encoders > - * @dev: drm device > - * > - * Disable the PSR function for all registered encoders, and then enable the > - * PSR function back after PSR_FLUSH_TIMEOUT. If encoder PSR state have been > - * changed during flush time, then keep the state no change after flush > - * timeout. > - * > - * Returns: > - * Zero on success, negative errno on failure. > - */ > -void rockchip_drm_psr_flush_all(struct drm_device *dev) > -{ > - struct rockchip_drm_private *drm_drv = dev->dev_private; > - struct psr_drv *psr; > - > - mutex_lock(&drm_drv->psr_list_lock); > - list_for_each_entry(psr, &drm_drv->psr_list, list) > - rockchip_drm_do_flush(psr); > - mutex_unlock(&drm_drv->psr_list_lock); > -} > -EXPORT_SYMBOL(rockchip_drm_psr_flush_all); > - > -/** > - * rockchip_drm_psr_register - register encoder to psr driver > - * @encoder: encoder that obtain the PSR function > - * @psr_set: call back to set PSR state > - * > - * The function returns with PSR inhibit counter initialized with one > - * and the caller (typically encoder driver) needs to call > - * rockchip_drm_psr_inhibit_put() when it becomes ready to accept PSR > - * enable request. > - * > - * Returns: > - * Zero on success, negative errno on failure. > - */ > -int rockchip_drm_psr_register(struct drm_encoder *encoder, > - int (*psr_set)(struct drm_encoder *, bool enable)) > -{ > - struct rockchip_drm_private *drm_drv; > - struct psr_drv *psr; > - > - if (!encoder || !psr_set) > - return -EINVAL; > - > - drm_drv = encoder->dev->dev_private; > - > - psr = kzalloc(sizeof(struct psr_drv), GFP_KERNEL); > - if (!psr) > - return -ENOMEM; > - > - INIT_DELAYED_WORK(&psr->flush_work, psr_flush_handler); > - mutex_init(&psr->lock); > - > - psr->inhibit_count = 1; > - psr->enabled = false; > - psr->encoder = encoder; > - psr->set = psr_set; > - > - mutex_lock(&drm_drv->psr_list_lock); > - list_add_tail(&psr->list, &drm_drv->psr_list); > - mutex_unlock(&drm_drv->psr_list_lock); > - > - return 0; > -} > -EXPORT_SYMBOL(rockchip_drm_psr_register); > - > -/** > - * rockchip_drm_psr_unregister - unregister encoder to psr driver > - * @encoder: encoder that obtain the PSR function > - * @psr_set: call back to set PSR state > - * > - * It is expected that the PSR inhibit counter is 1 when this function is > - * called, which corresponds to a state when related encoder has been > - * disconnected from any CRTCs and its driver called > - * rockchip_drm_psr_inhibit_get() to stop the PSR logic. > - * > - * Returns: > - * Zero on success, negative errno on failure. > - */ > -void rockchip_drm_psr_unregister(struct drm_encoder *encoder) > -{ > - struct rockchip_drm_private *drm_drv = encoder->dev->dev_private; > - struct psr_drv *psr, *n; > - > - mutex_lock(&drm_drv->psr_list_lock); > - list_for_each_entry_safe(psr, n, &drm_drv->psr_list, list) { > - if (psr->encoder == encoder) { > - /* > - * Any other value would mean that the encoder > - * is still in use. > - */ > - WARN_ON(psr->inhibit_count != 1); > - > - list_del(&psr->list); > - kfree(psr); > - } > - } > - mutex_unlock(&drm_drv->psr_list_lock); > -} > -EXPORT_SYMBOL(rockchip_drm_psr_unregister); > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_psr.h > b/drivers/gpu/drm/rockchip/rockchip_drm_psr.h > deleted file mode 100644 > index 25350ba3237b..000000000000 > --- a/drivers/gpu/drm/rockchip/rockchip_drm_psr.h > +++ /dev/null > @@ -1,30 +0,0 @@ > -/* > - * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd > - * Author: Yakir Yang <y...@rock-chips.com> > - * > - * This software is licensed under the terms of the GNU General Public > - * License version 2, as published by the Free Software Foundation, and > - * may be copied, distributed, and modified under those terms. > - * > - * This program is distributed in the hope that it will be useful, > - * but WITHOUT ANY WARRANTY; without even the implied warranty of > - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > - * GNU General Public License for more details. > - */ > - > -#ifndef __ROCKCHIP_DRM_PSR___ > -#define __ROCKCHIP_DRM_PSR___ > - > -void rockchip_drm_psr_flush_all(struct drm_device *dev); > - > -int rockchip_drm_psr_inhibit_put(struct drm_encoder *encoder); > -int rockchip_drm_psr_inhibit_get(struct drm_encoder *encoder); > - > -void rockchip_drm_psr_inhibit_get_state(struct drm_atomic_state *state); > -void rockchip_drm_psr_inhibit_put_state(struct drm_atomic_state *state); > - > -int rockchip_drm_psr_register(struct drm_encoder *encoder, > - int (*psr_set)(struct drm_encoder *, bool enable)); > -void rockchip_drm_psr_unregister(struct drm_encoder *encoder); > - > -#endif /* __ROCKCHIP_DRM_PSR__ */ > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c > b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c > index c7d4c6073ea5..21fccda70356 100644 > --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c > @@ -21,6 +21,7 @@ > #include <drm/drm_gem_framebuffer_helper.h> > #include <drm/drm_plane_helper.h> > #include <drm/drm_probe_helper.h> > +#include <drm/drm_self_refresh_helper.h> > #ifdef CONFIG_DRM_ANALOGIX_DP > #include <drm/bridge/analogix_dp.h> > #endif > @@ -42,10 +43,11 @@ > #include "rockchip_drm_drv.h" > #include "rockchip_drm_gem.h" > #include "rockchip_drm_fb.h" > -#include "rockchip_drm_psr.h" > #include "rockchip_drm_vop.h" > #include "rockchip_rgb.h" > > +#define VOP_SELF_REFRESH_ENTRY_DELAY_MS 100 > + > #define VOP_WIN_SET(vop, win, name, v) \ > vop_reg_set(vop, &win->phy->name, win->base, ~0, v, #name) > #define VOP_SCL_SET(vop, win, name, v) \ > @@ -541,7 +543,7 @@ static void vop_core_clks_disable(struct vop *vop) > clk_disable(vop->hclk); > } > > -static int vop_enable(struct drm_crtc *crtc) > +static int vop_enable(struct drm_crtc *crtc, struct drm_crtc_state > *old_state) > { > struct vop *vop = to_vop(crtc); > int ret, i; > @@ -581,12 +583,18 @@ static int vop_enable(struct drm_crtc *crtc) > * We need to make sure that all windows are disabled before we > * enable the crtc. Otherwise we might try to scan from a destroyed > * buffer later. > + * > + * In the case of enable-after-PSR, we don't need to worry about this > + * case since the buffer is guaranteed to be valid and disabling the > + * window will result in screen glitches on PSR exit. > */ > - for (i = 0; i < vop->data->win_size; i++) { > - struct vop_win *vop_win = &vop->win[i]; > - const struct vop_win_data *win = vop_win->data; > + if (!old_state || !old_state->self_refresh_active) { > + for (i = 0; i < vop->data->win_size; i++) { > + struct vop_win *vop_win = &vop->win[i]; > + const struct vop_win_data *win = vop_win->data; > > - VOP_WIN_SET(vop, win, enable, 0); > + VOP_WIN_SET(vop, win, enable, 0); > + } > } > spin_unlock(&vop->reg_lock); > > @@ -937,12 +945,10 @@ static void vop_plane_atomic_async_update(struct > drm_plane *plane, > } > > if (vop->is_enabled) { > - rockchip_drm_psr_inhibit_get_state(new_state->state); > vop_plane_atomic_update(plane, plane->state); > spin_lock(&vop->reg_lock); > vop_cfg_done(vop); > spin_unlock(&vop->reg_lock); > - rockchip_drm_psr_inhibit_put_state(new_state->state); > } > > plane->funcs->atomic_destroy_state(plane, plane_state); > @@ -1035,7 +1041,7 @@ static void vop_crtc_atomic_enable(struct drm_crtc > *crtc, > > WARN_ON(vop->event); > > - ret = vop_enable(crtc); > + ret = vop_enable(crtc, old_state); > if (ret) { > mutex_unlock(&vop->vop_lock); > DRM_DEV_ERROR(vop->dev, "Failed to enable vop (%d)\n", ret); > @@ -1509,6 +1515,13 @@ static int vop_create_crtc(struct vop *vop) > init_completion(&vop->line_flag_completion); > crtc->port = port; > > + ret = drm_self_refresh_helper_register(crtc, > + VOP_SELF_REFRESH_ENTRY_DELAY_MS); > + if (ret) > + DRM_DEV_DEBUG_KMS(vop->dev, > + "Failed to register %s with SR helpers %d, ignoring\n", > + crtc->name, ret); > + > return 0; > > err_cleanup_crtc: > @@ -1526,6 +1539,8 @@ static void vop_destroy_crtc(struct vop *vop) > struct drm_device *drm_dev = vop->drm_dev; > struct drm_plane *plane, *tmp; > > + drm_self_refresh_helper_unregister(crtc); > + > of_node_put(crtc->port); > > /* > diff --git a/include/drm/bridge/analogix_dp.h > b/include/drm/bridge/analogix_dp.h > index 475b706b49de..b6cc654143d7 100644 > --- a/include/drm/bridge/analogix_dp.h > +++ b/include/drm/bridge/analogix_dp.h > @@ -42,9 +42,7 @@ struct analogix_dp_plat_data { > struct drm_connector *); > }; > > -int analogix_dp_psr_enabled(struct analogix_dp_device *dp); > -int analogix_dp_enable_psr(struct analogix_dp_device *dp); > -int analogix_dp_disable_psr(struct analogix_dp_device *dp); > +bool analogix_dp_self_refresh_changed(struct analogix_dp_device *dp); > > int analogix_dp_resume(struct analogix_dp_device *dp); > int analogix_dp_suspend(struct analogix_dp_device *dp); > _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
