[PATCH 4/4] drm/gma500: Cosmetic cleanup of irq code
Patrik Jakobsson
patrik.r.jakobsson at gmail.com
Thu Mar 17 11:35:07 UTC 2022
On Thu, Mar 17, 2022 at 12:02 PM Daniel Vetter <daniel at ffwll.ch> wrote:
>
> On Thu, Mar 17, 2022 at 10:25:55AM +0100, Patrik Jakobsson wrote:
> > Use the gma_ prefix instead of psb_ since the code is common for all
> > chips. Various coding style fixes. Removal of unused code. Removal of
> > duplicate function declarations.
>
> I didn't really find the above removal things, was that from an old commit
> message before you split those changes out?
I was thinking about the removal of mid_pipe_vsync() (unused code) and
the psb_irq declarations in psb_drv.h (duplicate function
declarations). Perhaps I should've split this up in several patches.
>
> Aside from that nit on the commit message on all 4 patches (btw you're
> threading is somehow broken in this series):
I have a new gitconfig on this machine. It's likely misconfigured with
--no-thread or something like that.
Thanks for the review.
>
> Acked-by: Daniel Vetter <daniel.vetter at ffwll.ch>
> >
> > Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson at gmail.com>
> > ---
> > drivers/gpu/drm/gma500/gma_display.c | 8 +--
> > drivers/gpu/drm/gma500/opregion.c | 5 +-
> > drivers/gpu/drm/gma500/power.c | 10 +--
> > drivers/gpu/drm/gma500/psb_drv.c | 2 +-
> > drivers/gpu/drm/gma500/psb_drv.h | 11 ----
> > drivers/gpu/drm/gma500/psb_irq.c | 94 +++++++++++-----------------
> > drivers/gpu/drm/gma500/psb_irq.h | 19 +++---
> > 7 files changed, 57 insertions(+), 92 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/gma500/gma_display.c b/drivers/gpu/drm/gma500/gma_display.c
> > index 931ffb192fc4..1d7964c339f4 100644
> > --- a/drivers/gpu/drm/gma500/gma_display.c
> > +++ b/drivers/gpu/drm/gma500/gma_display.c
> > @@ -17,7 +17,7 @@
> > #include "framebuffer.h"
> > #include "gem.h"
> > #include "gma_display.h"
> > -#include "psb_drv.h"
> > +#include "psb_irq.h"
> > #include "psb_intel_drv.h"
> > #include "psb_intel_reg.h"
> >
> > @@ -572,9 +572,9 @@ const struct drm_crtc_funcs gma_crtc_funcs = {
> > .set_config = gma_crtc_set_config,
> > .destroy = gma_crtc_destroy,
> > .page_flip = gma_crtc_page_flip,
> > - .enable_vblank = psb_enable_vblank,
> > - .disable_vblank = psb_disable_vblank,
> > - .get_vblank_counter = psb_get_vblank_counter,
> > + .enable_vblank = gma_enable_vblank,
> > + .disable_vblank = gma_disable_vblank,
> > + .get_vblank_counter = gma_get_vblank_counter,
> > };
> >
> > /*
> > diff --git a/drivers/gpu/drm/gma500/opregion.c b/drivers/gpu/drm/gma500/opregion.c
> > index fef04ff8c3a9..dc494df71a48 100644
> > --- a/drivers/gpu/drm/gma500/opregion.c
> > +++ b/drivers/gpu/drm/gma500/opregion.c
> > @@ -23,6 +23,7 @@
> > */
> > #include <linux/acpi.h>
> > #include "psb_drv.h"
> > +#include "psb_irq.h"
> > #include "psb_intel_reg.h"
> >
> > #define PCI_ASLE 0xe4
> > @@ -217,8 +218,8 @@ void psb_intel_opregion_enable_asle(struct drm_device *dev)
> > if (asle && system_opregion ) {
> > /* Don't do this on Medfield or other non PC like devices, they
> > use the bit for something different altogether */
> > - psb_enable_pipestat(dev_priv, 0, PIPE_LEGACY_BLC_EVENT_ENABLE);
> > - psb_enable_pipestat(dev_priv, 1, PIPE_LEGACY_BLC_EVENT_ENABLE);
> > + gma_enable_pipestat(dev_priv, 0, PIPE_LEGACY_BLC_EVENT_ENABLE);
> > + gma_enable_pipestat(dev_priv, 1, PIPE_LEGACY_BLC_EVENT_ENABLE);
> >
> > asle->tche = ASLE_ALS_EN | ASLE_BLC_EN | ASLE_PFIT_EN
> > | ASLE_PFMB_EN;
> > diff --git a/drivers/gpu/drm/gma500/power.c b/drivers/gpu/drm/gma500/power.c
> > index 6f917cfef65b..b91de6d36e41 100644
> > --- a/drivers/gpu/drm/gma500/power.c
> > +++ b/drivers/gpu/drm/gma500/power.c
> > @@ -201,7 +201,7 @@ int gma_power_suspend(struct device *_dev)
> > dev_err(dev->dev, "GPU hardware busy, cannot suspend\n");
> > return -EBUSY;
> > }
> > - psb_irq_uninstall(dev);
> > + gma_irq_uninstall(dev);
> > gma_suspend_display(dev);
> > gma_suspend_pci(pdev);
> > }
> > @@ -223,8 +223,8 @@ int gma_power_resume(struct device *_dev)
> > mutex_lock(&power_mutex);
> > gma_resume_pci(pdev);
> > gma_resume_display(pdev);
> > - psb_irq_preinstall(dev);
> > - psb_irq_postinstall(dev);
> > + gma_irq_preinstall(dev);
> > + gma_irq_postinstall(dev);
> > mutex_unlock(&power_mutex);
> > return 0;
> > }
> > @@ -270,8 +270,8 @@ bool gma_power_begin(struct drm_device *dev, bool force_on)
> > /* Ok power up needed */
> > ret = gma_resume_pci(pdev);
> > if (ret == 0) {
> > - psb_irq_preinstall(dev);
> > - psb_irq_postinstall(dev);
> > + gma_irq_preinstall(dev);
> > + gma_irq_postinstall(dev);
> > pm_runtime_get(dev->dev);
> > dev_priv->display_count++;
> > spin_unlock_irqrestore(&power_ctrl_lock, flags);
> > diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
> > index e30b58184156..82d51e9821ad 100644
> > --- a/drivers/gpu/drm/gma500/psb_drv.c
> > +++ b/drivers/gpu/drm/gma500/psb_drv.c
> > @@ -380,7 +380,7 @@ static int psb_driver_load(struct drm_device *dev, unsigned long flags)
> > PSB_WVDC32(0xFFFFFFFF, PSB_INT_MASK_R);
> > spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
> >
> > - psb_irq_install(dev, pdev->irq);
> > + gma_irq_install(dev, pdev->irq);
> >
> > dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
> >
> > diff --git a/drivers/gpu/drm/gma500/psb_drv.h b/drivers/gpu/drm/gma500/psb_drv.h
> > index aed167af13c5..0ddfec1a0851 100644
> > --- a/drivers/gpu/drm/gma500/psb_drv.h
> > +++ b/drivers/gpu/drm/gma500/psb_drv.h
> > @@ -609,17 +609,6 @@ struct psb_ops {
> > int i2c_bus; /* I2C bus identifier for Moorestown */
> > };
> >
> > -/* psb_irq.c */
> > -extern int psb_enable_vblank(struct drm_crtc *crtc);
> > -extern void psb_disable_vblank(struct drm_crtc *crtc);
> > -void
> > -psb_enable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask);
> > -
> > -void
> > -psb_disable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask);
> > -
> > -extern u32 psb_get_vblank_counter(struct drm_crtc *crtc);
> > -
> > /* psb_lid.c */
> > extern void psb_lid_timer_init(struct drm_psb_private *dev_priv);
> > extern void psb_lid_timer_takedown(struct drm_psb_private *dev_priv);
> > diff --git a/drivers/gpu/drm/gma500/psb_irq.c b/drivers/gpu/drm/gma500/psb_irq.c
> > index ccf402007beb..2e8ded532930 100644
> > --- a/drivers/gpu/drm/gma500/psb_irq.c
> > +++ b/drivers/gpu/drm/gma500/psb_irq.c
> > @@ -21,8 +21,7 @@
> > * inline functions
> > */
> >
> > -static inline u32
> > -psb_pipestat(int pipe)
> > +static inline u32 gma_pipestat(int pipe)
> > {
> > if (pipe == 0)
> > return PIPEASTAT;
> > @@ -33,8 +32,7 @@ psb_pipestat(int pipe)
> > BUG();
> > }
> >
> > -static inline u32
> > -mid_pipe_event(int pipe)
> > +static inline u32 gma_pipe_event(int pipe)
> > {
> > if (pipe == 0)
> > return _PSB_PIPEA_EVENT_FLAG;
> > @@ -45,20 +43,7 @@ mid_pipe_event(int pipe)
> > BUG();
> > }
> >
> > -static inline u32
> > -mid_pipe_vsync(int pipe)
> > -{
> > - if (pipe == 0)
> > - return _PSB_VSYNC_PIPEA_FLAG;
> > - if (pipe == 1)
> > - return _PSB_VSYNC_PIPEB_FLAG;
> > - if (pipe == 2)
> > - return _MDFLD_PIPEC_VBLANK_FLAG;
> > - BUG();
> > -}
> > -
> > -static inline u32
> > -mid_pipeconf(int pipe)
> > +static inline u32 gma_pipeconf(int pipe)
> > {
> > if (pipe == 0)
> > return PIPEACONF;
> > @@ -69,11 +54,10 @@ mid_pipeconf(int pipe)
> > BUG();
> > }
> >
> > -void
> > -psb_enable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask)
> > +void gma_enable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask)
> > {
> > if ((dev_priv->pipestat[pipe] & mask) != mask) {
> > - u32 reg = psb_pipestat(pipe);
> > + u32 reg = gma_pipestat(pipe);
> > dev_priv->pipestat[pipe] |= mask;
> > /* Enable the interrupt, clear any pending status */
> > if (gma_power_begin(&dev_priv->dev, false)) {
> > @@ -86,11 +70,10 @@ psb_enable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask)
> > }
> > }
> >
> > -void
> > -psb_disable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask)
> > +void gma_disable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask)
> > {
> > if ((dev_priv->pipestat[pipe] & mask) != 0) {
> > - u32 reg = psb_pipestat(pipe);
> > + u32 reg = gma_pipestat(pipe);
> > dev_priv->pipestat[pipe] &= ~mask;
> > if (gma_power_begin(&dev_priv->dev, false)) {
> > u32 writeVal = PSB_RVDC32(reg);
> > @@ -105,12 +88,12 @@ psb_disable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask)
> > /*
> > * Display controller interrupt handler for pipe event.
> > */
> > -static void mid_pipe_event_handler(struct drm_device *dev, int pipe)
> > +static void gma_pipe_event_handler(struct drm_device *dev, int pipe)
> > {
> > struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
> >
> > uint32_t pipe_stat_val = 0;
> > - uint32_t pipe_stat_reg = psb_pipestat(pipe);
> > + uint32_t pipe_stat_reg = gma_pipestat(pipe);
> > uint32_t pipe_enable = dev_priv->pipestat[pipe];
> > uint32_t pipe_status = dev_priv->pipestat[pipe] >> 16;
> > uint32_t pipe_clear;
> > @@ -160,22 +143,22 @@ static void mid_pipe_event_handler(struct drm_device *dev, int pipe)
> > /*
> > * Display controller interrupt handler.
> > */
> > -static void psb_vdc_interrupt(struct drm_device *dev, uint32_t vdc_stat)
> > +static void gma_vdc_interrupt(struct drm_device *dev, uint32_t vdc_stat)
> > {
> > if (vdc_stat & _PSB_IRQ_ASLE)
> > psb_intel_opregion_asle_intr(dev);
> >
> > if (vdc_stat & _PSB_VSYNC_PIPEA_FLAG)
> > - mid_pipe_event_handler(dev, 0);
> > + gma_pipe_event_handler(dev, 0);
> >
> > if (vdc_stat & _PSB_VSYNC_PIPEB_FLAG)
> > - mid_pipe_event_handler(dev, 1);
> > + gma_pipe_event_handler(dev, 1);
> > }
> >
> > /*
> > * SGX interrupt handler
> > */
> > -static void psb_sgx_interrupt(struct drm_device *dev, u32 stat_1, u32 stat_2)
> > +static void gma_sgx_interrupt(struct drm_device *dev, u32 stat_1, u32 stat_2)
> > {
> > struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
> > u32 val, addr;
> > @@ -222,7 +205,7 @@ static void psb_sgx_interrupt(struct drm_device *dev, u32 stat_1, u32 stat_2)
> > PSB_RSGX32(PSB_CR_EVENT_HOST_CLEAR2);
> > }
> >
> > -static irqreturn_t psb_irq_handler(int irq, void *arg)
> > +static irqreturn_t gma_irq_handler(int irq, void *arg)
> > {
> > struct drm_device *dev = arg;
> > struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
> > @@ -246,14 +229,14 @@ static irqreturn_t psb_irq_handler(int irq, void *arg)
> > spin_unlock(&dev_priv->irqmask_lock);
> >
> > if (dsp_int && gma_power_is_on(dev)) {
> > - psb_vdc_interrupt(dev, vdc_stat);
> > + gma_vdc_interrupt(dev, vdc_stat);
> > handled = 1;
> > }
> >
> > if (sgx_int) {
> > sgx_stat_1 = PSB_RSGX32(PSB_CR_EVENT_STATUS);
> > sgx_stat_2 = PSB_RSGX32(PSB_CR_EVENT_STATUS2);
> > - psb_sgx_interrupt(dev, sgx_stat_1, sgx_stat_2);
> > + gma_sgx_interrupt(dev, sgx_stat_1, sgx_stat_2);
> > handled = 1;
> > }
> >
> > @@ -274,7 +257,7 @@ static irqreturn_t psb_irq_handler(int irq, void *arg)
> > return IRQ_HANDLED;
> > }
> >
> > -void psb_irq_preinstall(struct drm_device *dev)
> > +void gma_irq_preinstall(struct drm_device *dev)
> > {
> > struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
> > unsigned long irqflags;
> > @@ -303,7 +286,7 @@ void psb_irq_preinstall(struct drm_device *dev)
> > spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
> > }
> >
> > -void psb_irq_postinstall(struct drm_device *dev)
> > +void gma_irq_postinstall(struct drm_device *dev)
> > {
> > struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
> > unsigned long irqflags;
> > @@ -322,9 +305,9 @@ void psb_irq_postinstall(struct drm_device *dev)
> >
> > for (i = 0; i < dev->num_crtcs; ++i) {
> > if (dev->vblank[i].enabled)
> > - psb_enable_pipestat(dev_priv, i, PIPE_VBLANK_INTERRUPT_ENABLE);
> > + gma_enable_pipestat(dev_priv, i, PIPE_VBLANK_INTERRUPT_ENABLE);
> > else
> > - psb_disable_pipestat(dev_priv, i, PIPE_VBLANK_INTERRUPT_ENABLE);
> > + gma_disable_pipestat(dev_priv, i, PIPE_VBLANK_INTERRUPT_ENABLE);
> > }
> >
> > if (dev_priv->ops->hotplug_enable)
> > @@ -333,26 +316,26 @@ void psb_irq_postinstall(struct drm_device *dev)
> > spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
> > }
> >
> > -int psb_irq_install(struct drm_device *dev, unsigned int irq)
> > +int gma_irq_install(struct drm_device *dev, unsigned int irq)
> > {
> > int ret;
> >
> > if (irq == IRQ_NOTCONNECTED)
> > return -ENOTCONN;
> >
> > - psb_irq_preinstall(dev);
> > + gma_irq_preinstall(dev);
> >
> > /* PCI devices require shared interrupts. */
> > - ret = request_irq(irq, psb_irq_handler, IRQF_SHARED, dev->driver->name, dev);
> > + ret = request_irq(irq, gma_irq_handler, IRQF_SHARED, dev->driver->name, dev);
> > if (ret)
> > return ret;
> >
> > - psb_irq_postinstall(dev);
> > + gma_irq_postinstall(dev);
> >
> > return 0;
> > }
> >
> > -void psb_irq_uninstall(struct drm_device *dev)
> > +void gma_irq_uninstall(struct drm_device *dev)
> > {
> > struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
> > struct pci_dev *pdev = to_pci_dev(dev->dev);
> > @@ -368,7 +351,7 @@ void psb_irq_uninstall(struct drm_device *dev)
> >
> > for (i = 0; i < dev->num_crtcs; ++i) {
> > if (dev->vblank[i].enabled)
> > - psb_disable_pipestat(dev_priv, i, PIPE_VBLANK_INTERRUPT_ENABLE);
> > + gma_disable_pipestat(dev_priv, i, PIPE_VBLANK_INTERRUPT_ENABLE);
> > }
> >
> > dev_priv->vdc_irq_mask &= _PSB_IRQ_SGX_FLAG |
> > @@ -388,17 +371,14 @@ void psb_irq_uninstall(struct drm_device *dev)
> > free_irq(pdev->irq, dev);
> > }
> >
> > -/*
> > - * It is used to enable VBLANK interrupt
> > - */
> > -int psb_enable_vblank(struct drm_crtc *crtc)
> > +int gma_enable_vblank(struct drm_crtc *crtc)
> > {
> > struct drm_device *dev = crtc->dev;
> > unsigned int pipe = crtc->index;
> > struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
> > unsigned long irqflags;
> > uint32_t reg_val = 0;
> > - uint32_t pipeconf_reg = mid_pipeconf(pipe);
> > + uint32_t pipeconf_reg = gma_pipeconf(pipe);
> >
> > if (gma_power_begin(dev, false)) {
> > reg_val = REG_READ(pipeconf_reg);
> > @@ -417,17 +397,14 @@ int psb_enable_vblank(struct drm_crtc *crtc)
> >
> > PSB_WVDC32(~dev_priv->vdc_irq_mask, PSB_INT_MASK_R);
> > PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
> > - psb_enable_pipestat(dev_priv, pipe, PIPE_VBLANK_INTERRUPT_ENABLE);
> > + gma_enable_pipestat(dev_priv, pipe, PIPE_VBLANK_INTERRUPT_ENABLE);
> >
> > spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
> >
> > return 0;
> > }
> >
> > -/*
> > - * It is used to disable VBLANK interrupt
> > - */
> > -void psb_disable_vblank(struct drm_crtc *crtc)
> > +void gma_disable_vblank(struct drm_crtc *crtc)
> > {
> > struct drm_device *dev = crtc->dev;
> > unsigned int pipe = crtc->index;
> > @@ -443,7 +420,7 @@ void psb_disable_vblank(struct drm_crtc *crtc)
> >
> > PSB_WVDC32(~dev_priv->vdc_irq_mask, PSB_INT_MASK_R);
> > PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
> > - psb_disable_pipestat(dev_priv, pipe, PIPE_VBLANK_INTERRUPT_ENABLE);
> > + gma_disable_pipestat(dev_priv, pipe, PIPE_VBLANK_INTERRUPT_ENABLE);
> >
> > spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
> > }
> > @@ -451,7 +428,7 @@ void psb_disable_vblank(struct drm_crtc *crtc)
> > /* Called from drm generic code, passed a 'crtc', which
> > * we use as a pipe index
> > */
> > -u32 psb_get_vblank_counter(struct drm_crtc *crtc)
> > +u32 gma_get_vblank_counter(struct drm_crtc *crtc)
> > {
> > struct drm_device *dev = crtc->dev;
> > unsigned int pipe = crtc->index;
> > @@ -486,8 +463,8 @@ u32 psb_get_vblank_counter(struct drm_crtc *crtc)
> >
> > if (!(reg_val & PIPEACONF_ENABLE)) {
> > dev_err(dev->dev, "trying to get vblank count for disabled pipe %u\n",
> > - pipe);
> > - goto psb_get_vblank_counter_exit;
> > + pipe);
> > + goto err_gma_power_end;
> > }
> >
> > /*
> > @@ -506,8 +483,7 @@ u32 psb_get_vblank_counter(struct drm_crtc *crtc)
> >
> > count = (high1 << 8) | low;
> >
> > -psb_get_vblank_counter_exit:
> > -
> > +err_gma_power_end:
> > gma_power_end(dev);
> >
> > return count;
> > diff --git a/drivers/gpu/drm/gma500/psb_irq.h b/drivers/gpu/drm/gma500/psb_irq.h
> > index a97cb49393d8..c22878914f5b 100644
> > --- a/drivers/gpu/drm/gma500/psb_irq.h
> > +++ b/drivers/gpu/drm/gma500/psb_irq.h
> > @@ -15,16 +15,15 @@
> > struct drm_crtc;
> > struct drm_device;
> >
> > -bool sysirq_init(struct drm_device *dev);
> > -void sysirq_uninit(struct drm_device *dev);
> > +void gma_irq_preinstall(struct drm_device *dev);
> > +void gma_irq_postinstall(struct drm_device *dev);
> > +int gma_irq_install(struct drm_device *dev, unsigned int irq);
> > +void gma_irq_uninstall(struct drm_device *dev);
> >
> > -void psb_irq_preinstall(struct drm_device *dev);
> > -void psb_irq_postinstall(struct drm_device *dev);
> > -int psb_irq_install(struct drm_device *dev, unsigned int irq);
> > -void psb_irq_uninstall(struct drm_device *dev);
> > -
> > -int psb_enable_vblank(struct drm_crtc *crtc);
> > -void psb_disable_vblank(struct drm_crtc *crtc);
> > -u32 psb_get_vblank_counter(struct drm_crtc *crtc);
> > +int gma_enable_vblank(struct drm_crtc *crtc);
> > +void gma_disable_vblank(struct drm_crtc *crtc);
> > +u32 gma_get_vblank_counter(struct drm_crtc *crtc);
> > +void gma_enable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask);
> > +void gma_disable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask);
> >
> > #endif /* _PSB_IRQ_H_ */
> > --
> > 2.35.1
> >
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch
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