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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/gpu/drm/msm/disp/mdp5/mdp5_irq.c | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/msm/disp/mdp5/mdp5_irq.c')
-rw-r--r-- | drivers/gpu/drm/msm/disp/mdp5/mdp5_irq.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_irq.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_irq.c new file mode 100644 index 0000000000..43443a435d --- /dev/null +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_irq.c @@ -0,0 +1,125 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2013 Red Hat + * Author: Rob Clark <robdclark@gmail.com> + */ + +#include <linux/irq.h> + +#include <drm/drm_print.h> +#include <drm/drm_vblank.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); +} + +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); + } +} + +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); +} + +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; +} + +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); +} + +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 drm_crtc *crtc; + 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); + + drm_for_each_crtc(crtc, dev) + if (status & mdp5_crtc_vblank(crtc)) + drm_crtc_handle_vblank(crtc); + + return IRQ_HANDLED; +} + +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; +} + +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); +} |