[Intel-gfx] [PATCH 41/70] drm/i915: Tidy gen8 IRQ handler
Daniel Vetter
daniel at ffwll.ch
Fri Apr 10 01:36:49 PDT 2015
On Tue, Apr 07, 2015 at 04:21:05PM +0100, Chris Wilson wrote:
> Remove some needless variables and parameter passing.
>
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Merged 3 patches up to this one, thanks.
-Daniel
> ---
> drivers/gpu/drm/i915/i915_irq.c | 113 +++++++++++++++++-----------------------
> 1 file changed, 49 insertions(+), 64 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
> index c2c80bf490c6..46bcbff89760 100644
> --- a/drivers/gpu/drm/i915/i915_irq.c
> +++ b/drivers/gpu/drm/i915/i915_irq.c
> @@ -985,8 +985,7 @@ static void ironlake_rps_change_irq_handler(struct drm_device *dev)
> return;
> }
>
> -static void notify_ring(struct drm_device *dev,
> - struct intel_engine_cs *ring)
> +static void notify_ring(struct intel_engine_cs *ring)
> {
> if (!intel_ring_initialized(ring))
> return;
> @@ -1248,9 +1247,9 @@ static void ilk_gt_irq_handler(struct drm_device *dev,
> {
> if (gt_iir &
> (GT_RENDER_USER_INTERRUPT | GT_RENDER_PIPECTL_NOTIFY_INTERRUPT))
> - notify_ring(dev, &dev_priv->ring[RCS]);
> + notify_ring(&dev_priv->ring[RCS]);
> if (gt_iir & ILK_BSD_USER_INTERRUPT)
> - notify_ring(dev, &dev_priv->ring[VCS]);
> + notify_ring(&dev_priv->ring[VCS]);
> }
>
> static void snb_gt_irq_handler(struct drm_device *dev,
> @@ -1260,11 +1259,11 @@ static void snb_gt_irq_handler(struct drm_device *dev,
>
> if (gt_iir &
> (GT_RENDER_USER_INTERRUPT | GT_RENDER_PIPECTL_NOTIFY_INTERRUPT))
> - notify_ring(dev, &dev_priv->ring[RCS]);
> + notify_ring(&dev_priv->ring[RCS]);
> if (gt_iir & GT_BSD_USER_INTERRUPT)
> - notify_ring(dev, &dev_priv->ring[VCS]);
> + notify_ring(&dev_priv->ring[VCS]);
> if (gt_iir & GT_BLT_USER_INTERRUPT)
> - notify_ring(dev, &dev_priv->ring[BCS]);
> + notify_ring(&dev_priv->ring[BCS]);
>
> if (gt_iir & (GT_BLT_CS_ERROR_INTERRUPT |
> GT_BSD_CS_ERROR_INTERRUPT |
> @@ -1275,63 +1274,65 @@ static void snb_gt_irq_handler(struct drm_device *dev,
> ivybridge_parity_error_irq_handler(dev, gt_iir);
> }
>
> -static irqreturn_t gen8_gt_irq_handler(struct drm_device *dev,
> - struct drm_i915_private *dev_priv,
> +static irqreturn_t gen8_gt_irq_handler(struct drm_i915_private *dev_priv,
> u32 master_ctl)
> {
> - struct intel_engine_cs *ring;
> - u32 rcs, bcs, vcs;
> - uint32_t tmp = 0;
> irqreturn_t ret = IRQ_NONE;
>
> if (master_ctl & (GEN8_GT_RCS_IRQ | GEN8_GT_BCS_IRQ)) {
> - tmp = I915_READ_FW(GEN8_GT_IIR(0));
> + u32 tmp = I915_READ_FW(GEN8_GT_IIR(0));
> if (tmp) {
> I915_WRITE_FW(GEN8_GT_IIR(0), tmp);
> ret = IRQ_HANDLED;
>
> - rcs = tmp >> GEN8_RCS_IRQ_SHIFT;
> - ring = &dev_priv->ring[RCS];
> - if (rcs & GT_CONTEXT_SWITCH_INTERRUPT)
> - intel_lrc_irq_handler(ring);
> - if (rcs & GT_RENDER_USER_INTERRUPT)
> - notify_ring(dev, ring);
> -
> - bcs = tmp >> GEN8_BCS_IRQ_SHIFT;
> - ring = &dev_priv->ring[BCS];
> - if (bcs & GT_CONTEXT_SWITCH_INTERRUPT)
> - intel_lrc_irq_handler(ring);
> - if (bcs & GT_RENDER_USER_INTERRUPT)
> - notify_ring(dev, ring);
> + if (tmp & (GT_CONTEXT_SWITCH_INTERRUPT << GEN8_RCS_IRQ_SHIFT))
> + intel_lrc_irq_handler(&dev_priv->ring[RCS]);
> + if (tmp & (GT_RENDER_USER_INTERRUPT << GEN8_RCS_IRQ_SHIFT))
> + notify_ring(&dev_priv->ring[RCS]);
> +
> + if (tmp & (GT_CONTEXT_SWITCH_INTERRUPT << GEN8_BCS_IRQ_SHIFT))
> + intel_lrc_irq_handler(&dev_priv->ring[BCS]);
> + if (tmp & (GT_RENDER_USER_INTERRUPT << GEN8_BCS_IRQ_SHIFT))
> + notify_ring(&dev_priv->ring[BCS]);
> } else
> DRM_ERROR("The master control interrupt lied (GT0)!\n");
> }
>
> if (master_ctl & (GEN8_GT_VCS1_IRQ | GEN8_GT_VCS2_IRQ)) {
> - tmp = I915_READ_FW(GEN8_GT_IIR(1));
> + u32 tmp = I915_READ_FW(GEN8_GT_IIR(1));
> if (tmp) {
> I915_WRITE_FW(GEN8_GT_IIR(1), tmp);
> ret = IRQ_HANDLED;
>
> - vcs = tmp >> GEN8_VCS1_IRQ_SHIFT;
> - ring = &dev_priv->ring[VCS];
> - if (vcs & GT_CONTEXT_SWITCH_INTERRUPT)
> - intel_lrc_irq_handler(ring);
> - if (vcs & GT_RENDER_USER_INTERRUPT)
> - notify_ring(dev, ring);
> -
> - vcs = tmp >> GEN8_VCS2_IRQ_SHIFT;
> - ring = &dev_priv->ring[VCS2];
> - if (vcs & GT_CONTEXT_SWITCH_INTERRUPT)
> - intel_lrc_irq_handler(ring);
> - if (vcs & GT_RENDER_USER_INTERRUPT)
> - notify_ring(dev, ring);
> + if (tmp & (GT_CONTEXT_SWITCH_INTERRUPT << GEN8_VCS1_IRQ_SHIFT))
> + intel_lrc_irq_handler(&dev_priv->ring[VCS]);
> + if (tmp & (GT_RENDER_USER_INTERRUPT << GEN8_VCS1_IRQ_SHIFT))
> + notify_ring(&dev_priv->ring[VCS]);
> +
> + if (tmp & (GT_CONTEXT_SWITCH_INTERRUPT << GEN8_VCS2_IRQ_SHIFT))
> + intel_lrc_irq_handler(&dev_priv->ring[VCS2]);
> + if (tmp & (GT_RENDER_USER_INTERRUPT << GEN8_VCS2_IRQ_SHIFT))
> + notify_ring(&dev_priv->ring[VCS2]);
> } else
> DRM_ERROR("The master control interrupt lied (GT1)!\n");
> }
>
> + if (master_ctl & GEN8_GT_VECS_IRQ) {
> + u32 tmp = I915_READ_FW(GEN8_GT_IIR(3));
> + if (tmp) {
> + I915_WRITE_FW(GEN8_GT_IIR(3), tmp);
> + ret = IRQ_HANDLED;
> +
> + if (tmp & (GT_CONTEXT_SWITCH_INTERRUPT << GEN8_VECS_IRQ_SHIFT))
> + intel_lrc_irq_handler(&dev_priv->ring[VECS]);
> + if (tmp & (GT_RENDER_USER_INTERRUPT << GEN8_VECS_IRQ_SHIFT))
> + notify_ring(&dev_priv->ring[VECS]);
> + } else
> + DRM_ERROR("The master control interrupt lied (GT3)!\n");
> + }
> +
> if (master_ctl & GEN8_GT_PM_IRQ) {
> - tmp = I915_READ_FW(GEN8_GT_IIR(2));
> + u32 tmp = I915_READ_FW(GEN8_GT_IIR(2));
> if (tmp & dev_priv->pm_rps_events) {
> I915_WRITE_FW(GEN8_GT_IIR(2),
> tmp & dev_priv->pm_rps_events);
> @@ -1341,22 +1342,6 @@ static irqreturn_t gen8_gt_irq_handler(struct drm_device *dev,
> DRM_ERROR("The master control interrupt lied (PM)!\n");
> }
>
> - if (master_ctl & GEN8_GT_VECS_IRQ) {
> - tmp = I915_READ_FW(GEN8_GT_IIR(3));
> - if (tmp) {
> - I915_WRITE_FW(GEN8_GT_IIR(3), tmp);
> - ret = IRQ_HANDLED;
> -
> - vcs = tmp >> GEN8_VECS_IRQ_SHIFT;
> - ring = &dev_priv->ring[VECS];
> - if (vcs & GT_CONTEXT_SWITCH_INTERRUPT)
> - intel_lrc_irq_handler(ring);
> - if (vcs & GT_RENDER_USER_INTERRUPT)
> - notify_ring(dev, ring);
> - } else
> - DRM_ERROR("The master control interrupt lied (GT3)!\n");
> - }
> -
> return ret;
> }
>
> @@ -1651,7 +1636,7 @@ static void gen6_rps_irq_handler(struct drm_i915_private *dev_priv, u32 pm_iir)
>
> if (HAS_VEBOX(dev_priv->dev)) {
> if (pm_iir & PM_VEBOX_USER_INTERRUPT)
> - notify_ring(dev_priv->dev, &dev_priv->ring[VECS]);
> + notify_ring(&dev_priv->ring[VECS]);
>
> if (pm_iir & PM_VEBOX_CS_ERROR_INTERRUPT)
> DRM_DEBUG("Command parser error, pm_iir 0x%08x\n", pm_iir);
> @@ -1845,7 +1830,7 @@ static irqreturn_t cherryview_irq_handler(int irq, void *arg)
> I915_WRITE(VLV_IIR, iir);
> }
>
> - gen8_gt_irq_handler(dev, dev_priv, master_ctl);
> + gen8_gt_irq_handler(dev_priv, master_ctl);
>
> /* Call regardless, as some status bits might not be
> * signalled in iir */
> @@ -2187,7 +2172,7 @@ static irqreturn_t gen8_irq_handler(int irq, void *arg)
>
> /* Find, clear, then process each source of interrupt */
>
> - ret = gen8_gt_irq_handler(dev, dev_priv, master_ctl);
> + ret = gen8_gt_irq_handler(dev_priv, master_ctl);
>
> if (master_ctl & GEN8_DE_MISC_IRQ) {
> tmp = I915_READ(GEN8_DE_MISC_IIR);
> @@ -3692,7 +3677,7 @@ static irqreturn_t i8xx_irq_handler(int irq, void *arg)
> new_iir = I915_READ16(IIR); /* Flush posted writes */
>
> if (iir & I915_USER_INTERRUPT)
> - notify_ring(dev, &dev_priv->ring[RCS]);
> + notify_ring(&dev_priv->ring[RCS]);
>
> for_each_pipe(dev_priv, pipe) {
> int plane = pipe;
> @@ -3883,7 +3868,7 @@ static irqreturn_t i915_irq_handler(int irq, void *arg)
> new_iir = I915_READ(IIR); /* Flush posted writes */
>
> if (iir & I915_USER_INTERRUPT)
> - notify_ring(dev, &dev_priv->ring[RCS]);
> + notify_ring(&dev_priv->ring[RCS]);
>
> for_each_pipe(dev_priv, pipe) {
> int plane = pipe;
> @@ -4110,9 +4095,9 @@ static irqreturn_t i965_irq_handler(int irq, void *arg)
> new_iir = I915_READ(IIR); /* Flush posted writes */
>
> if (iir & I915_USER_INTERRUPT)
> - notify_ring(dev, &dev_priv->ring[RCS]);
> + notify_ring(&dev_priv->ring[RCS]);
> if (iir & I915_BSD_USER_INTERRUPT)
> - notify_ring(dev, &dev_priv->ring[VCS]);
> + notify_ring(&dev_priv->ring[VCS]);
>
> for_each_pipe(dev_priv, pipe) {
> if (pipe_stats[pipe] & PIPE_START_VBLANK_INTERRUPT_STATUS &&
> --
> 2.1.4
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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