cregit-Linux how code gets into the kernel

Release 4.17 drivers/gpu/drm/msm/disp/mdp5/mdp5_irq.c

/*
 * Copyright (C) 2013 Red Hat
 * Author: Rob Clark <robdclark@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <linux/irq.h>

#include <drm/drm_print.h>

#include "msm_drv.h"
#include "mdp5_kms.h"


void mdp5_set_irqmask(struct mdp_kms *mdp_kms, uint32_t irqmask, uint32_t old_irqmask) { mdp5_write(to_mdp5_kms(mdp_kms), REG_MDP5_INTR_CLEAR, irqmask ^ (irqmask & old_irqmask)); mdp5_write(to_mdp5_kms(mdp_kms), REG_MDP5_INTR_EN, irqmask); }

Contributors

PersonTokensPropCommitsCommitProp
Rob Clark2452.17%133.33%
Jilai Wang2043.48%133.33%
Archit Taneja24.35%133.33%
Total46100.00%3100.00%


static void mdp5_irq_error_handler(struct mdp_irq *irq, uint32_t irqstatus) { struct mdp5_kms *mdp5_kms = container_of(irq, struct mdp5_kms, error_handler); static DEFINE_RATELIMIT_STATE(rs, 5*HZ, 1); extern bool dumpstate; DRM_ERROR_RATELIMITED("errors: %08x\n", irqstatus); if (dumpstate && __ratelimit(&rs)) { struct drm_printer p = drm_info_printer(mdp5_kms->dev->dev); drm_state_dump(mdp5_kms->dev, &p); if (mdp5_kms->smp) mdp5_smp_dump(mdp5_kms->smp, &p); } }

Contributors

PersonTokensPropCommitsCommitProp
Rob Clark103100.00%4100.00%
Total103100.00%4100.00%


void mdp5_irq_preinstall(struct msm_kms *kms) { struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms)); struct device *dev = &mdp5_kms->pdev->dev; pm_runtime_get_sync(dev); mdp5_write(mdp5_kms, REG_MDP5_INTR_CLEAR, 0xffffffff); mdp5_write(mdp5_kms, REG_MDP5_INTR_EN, 0x00000000); pm_runtime_put_sync(dev); }

Contributors

PersonTokensPropCommitsCommitProp
Rob Clark4673.02%360.00%
Archit Taneja1726.98%240.00%
Total63100.00%5100.00%


int mdp5_irq_postinstall(struct msm_kms *kms) { struct mdp_kms *mdp_kms = to_mdp_kms(kms); struct mdp5_kms *mdp5_kms = to_mdp5_kms(mdp_kms); struct device *dev = &mdp5_kms->pdev->dev; struct mdp_irq *error_handler = &mdp5_kms->error_handler; error_handler->irq = mdp5_irq_error_handler; error_handler->irqmask = MDP5_IRQ_INTF0_UNDER_RUN | MDP5_IRQ_INTF1_UNDER_RUN | MDP5_IRQ_INTF2_UNDER_RUN | MDP5_IRQ_INTF3_UNDER_RUN; pm_runtime_get_sync(dev); mdp_irq_register(mdp_kms, error_handler); pm_runtime_put_sync(dev); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Rob Clark6976.67%250.00%
Archit Taneja2123.33%250.00%
Total90100.00%4100.00%


void mdp5_irq_uninstall(struct msm_kms *kms) { struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms)); struct device *dev = &mdp5_kms->pdev->dev; pm_runtime_get_sync(dev); mdp5_write(mdp5_kms, REG_MDP5_INTR_EN, 0x00000000); pm_runtime_put_sync(dev); }

Contributors

PersonTokensPropCommitsCommitProp
Rob Clark3870.37%360.00%
Archit Taneja1629.63%240.00%
Total54100.00%5100.00%


irqreturn_t mdp5_irq(struct msm_kms *kms) { struct mdp_kms *mdp_kms = to_mdp_kms(kms); struct mdp5_kms *mdp5_kms = to_mdp5_kms(mdp_kms); struct drm_device *dev = mdp5_kms->dev; struct msm_drm_private *priv = dev->dev_private; unsigned int id; uint32_t status, enable; enable = mdp5_read(mdp5_kms, REG_MDP5_INTR_EN); status = mdp5_read(mdp5_kms, REG_MDP5_INTR_STATUS) & enable; mdp5_write(mdp5_kms, REG_MDP5_INTR_CLEAR, status); VERB("status=%08x", status); mdp_dispatch_irqs(mdp_kms, status); for (id = 0; id < priv->num_crtcs; id++) if (status & mdp5_crtc_vblank(priv->crtcs[id])) drm_handle_vblank(dev, id); return IRQ_HANDLED; }

Contributors

PersonTokensPropCommitsCommitProp
Rob Clark11079.14%240.00%
Archit Taneja1712.23%240.00%
Jilai Wang128.63%120.00%
Total139100.00%5100.00%


int mdp5_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc) { struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms)); struct device *dev = &mdp5_kms->pdev->dev; pm_runtime_get_sync(dev); mdp_update_vblank_mask(to_mdp_kms(kms), mdp5_crtc_vblank(crtc), true); pm_runtime_put_sync(dev); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Rob Clark3450.00%250.00%
Hai Li1927.94%125.00%
Archit Taneja1522.06%125.00%
Total68100.00%4100.00%


void mdp5_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc) { struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms)); struct device *dev = &mdp5_kms->pdev->dev; pm_runtime_get_sync(dev); mdp_update_vblank_mask(to_mdp_kms(kms), mdp5_crtc_vblank(crtc), false); pm_runtime_put_sync(dev); }

Contributors

PersonTokensPropCommitsCommitProp
Rob Clark3147.69%250.00%
Hai Li1929.23%125.00%
Archit Taneja1523.08%125.00%
Total65100.00%4100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Rob Clark46873.01%857.14%
Archit Taneja10316.07%428.57%
Hai Li385.93%17.14%
Jilai Wang324.99%17.14%
Total641100.00%14100.00%
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