From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Ben Widawsky <benjamin.widawsky@intel.com>
Cc: Intel GFX <intel-gfx@lists.freedesktop.org>,
Bryan Bell <bryan.j.bell@intel.com>,
Ben Widawsky <ben@bwidawsk.net>
Subject: Re: [PATCH 6/6] drm/i915: s/HAS_L3_GPU_CACHE/HAS_L3_DPF
Date: Wed, 18 Sep 2013 10:50:40 +0300 [thread overview]
Message-ID: <20130918075040.GC4531@intel.com> (raw)
In-Reply-To: <1379477575-2164-6-git-send-email-benjamin.widawsky@intel.com>
On Tue, Sep 17, 2013 at 09:12:47PM -0700, Ben Widawsky wrote:
> We'd only ever used this define to denote whether or not we have the
> dynamic parity feature (DPF) and never to determine whether or not L3
> exists. Baytrail is a good example of where L3 exists, and not DPF.
>
> This patch provides clarify in the code for future use cases which might
> want to actually query whether or not L3 exists.
>
> Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
> ---
> drivers/gpu/drm/i915/i915_drv.h | 4 ++--
> drivers/gpu/drm/i915/i915_gem.c | 2 +-
> drivers/gpu/drm/i915/i915_irq.c | 4 ++--
> drivers/gpu/drm/i915/i915_sysfs.c | 4 ++--
> drivers/gpu/drm/i915/intel_ringbuffer.c | 6 +++---
> 5 files changed, 10 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 015df52..dd2753e 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1691,8 +1691,8 @@ struct drm_i915_file_private {
>
> #define HAS_FORCE_WAKE(dev) (INTEL_INFO(dev)->has_force_wake)
>
> -#define HAS_L3_GPU_CACHE(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
> -#define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_GPU_CACHE(dev))
> +#define HAS_L3_DPF(dev) (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
> +#define NUM_L3_SLICES(dev) (IS_HSW_GT3(dev) ? 2 : HAS_L3_DPF(dev))
Maybe add a comment saying /* DPF == dynamic parity feature */
Otherwise:
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> #define GT_FREQUENCY_MULTIPLIER 50
>
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index 18d07d7..7859f91 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -4260,7 +4260,7 @@ int i915_gem_l3_remap(struct intel_ring_buffer *ring, int slice)
> u32 *remap_info = dev_priv->l3_parity.remap_info[slice];
> int i, ret;
>
> - if (!HAS_L3_GPU_CACHE(dev) || !remap_info)
> + if (!HAS_L3_DPF(dev) || !remap_info)
> return 0;
>
> ret = intel_ring_begin(ring, GEN7_L3LOG_SIZE / 4 * 3);
> diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
> index b11ee39..0968c98 100644
> --- a/drivers/gpu/drm/i915/i915_irq.c
> +++ b/drivers/gpu/drm/i915/i915_irq.c
> @@ -959,7 +959,7 @@ static void ivybridge_parity_error_irq_handler(struct drm_device *dev, u32 iir)
> {
> drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
>
> - if (!HAS_L3_GPU_CACHE(dev))
> + if (!HAS_L3_DPF(dev))
> return;
>
> spin_lock(&dev_priv->irq_lock);
> @@ -2291,7 +2291,7 @@ static void gen5_gt_irq_postinstall(struct drm_device *dev)
> pm_irqs = gt_irqs = 0;
>
> dev_priv->gt_irq_mask = ~0;
> - if (HAS_L3_GPU_CACHE(dev)) {
> + if (HAS_L3_DPF(dev)) {
> /* L3 parity interrupt is always unmasked. */
> dev_priv->gt_irq_mask = ~GT_PARITY_ERROR(dev);
> gt_irqs |= GT_PARITY_ERROR(dev);
> diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
> index deb8787..7b4c79c 100644
> --- a/drivers/gpu/drm/i915/i915_sysfs.c
> +++ b/drivers/gpu/drm/i915/i915_sysfs.c
> @@ -97,7 +97,7 @@ static struct attribute_group rc6_attr_group = {
>
> static int l3_access_valid(struct drm_device *dev, loff_t offset)
> {
> - if (!HAS_L3_GPU_CACHE(dev))
> + if (!HAS_L3_DPF(dev))
> return -EPERM;
>
> if (offset % 4 != 0)
> @@ -525,7 +525,7 @@ void i915_setup_sysfs(struct drm_device *dev)
> DRM_ERROR("RC6 residency sysfs setup failed\n");
> }
> #endif
> - if (HAS_L3_GPU_CACHE(dev)) {
> + if (HAS_L3_DPF(dev)) {
> ret = device_create_bin_file(&dev->primary->kdev, &dpf_attrs);
> if (ret)
> DRM_ERROR("l3 parity sysfs setup failed\n");
> diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
> index 958b7d8..b67104a 100644
> --- a/drivers/gpu/drm/i915/intel_ringbuffer.c
> +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
> @@ -569,7 +569,7 @@ static int init_render_ring(struct intel_ring_buffer *ring)
> if (INTEL_INFO(dev)->gen >= 6)
> I915_WRITE(INSTPM, _MASKED_BIT_ENABLE(INSTPM_FORCE_ORDERING));
>
> - if (HAS_L3_GPU_CACHE(dev))
> + if (HAS_L3_DPF(dev))
> I915_WRITE_IMR(ring, ~GT_PARITY_ERROR(dev));
>
> return ret;
> @@ -997,7 +997,7 @@ gen6_ring_get_irq(struct intel_ring_buffer *ring)
>
> spin_lock_irqsave(&dev_priv->irq_lock, flags);
> if (ring->irq_refcount++ == 0) {
> - if (HAS_L3_GPU_CACHE(dev) && ring->id == RCS)
> + if (HAS_L3_DPF(dev) && ring->id == RCS)
> I915_WRITE_IMR(ring,
> ~(ring->irq_enable_mask |
> GT_PARITY_ERROR(dev)));
> @@ -1019,7 +1019,7 @@ gen6_ring_put_irq(struct intel_ring_buffer *ring)
>
> spin_lock_irqsave(&dev_priv->irq_lock, flags);
> if (--ring->irq_refcount == 0) {
> - if (HAS_L3_GPU_CACHE(dev) && ring->id == RCS)
> + if (HAS_L3_DPF(dev) && ring->id == RCS)
> I915_WRITE_IMR(ring, ~GT_PARITY_ERROR(dev));
> else
> I915_WRITE_IMR(ring, ~0);
> --
> 1.8.4
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Ville Syrjälä
Intel OTC
next prev parent reply other threads:[~2013-09-18 7:50 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-18 4:12 [PATCH 1/6] drm/i915: Fix HSW parity test Ben Widawsky
2013-09-18 4:12 ` [PATCH 2/6] drm/i915: Add second slice l3 remapping Ben Widawsky
2013-09-18 7:36 ` Ville Syrjälä
2013-09-18 16:22 ` Ben Widawsky
2013-09-19 18:13 ` [PATCH] [v3] " Ben Widawsky
2013-09-18 4:12 ` [PATCH 3/6] drm/i915: Make l3 remapping use the ring Ben Widawsky
2013-09-19 18:39 ` Daniel Vetter
2013-09-18 4:12 ` [PATCH 4/6] drm/i915: Keep a list of all contexts Ben Widawsky
2013-09-18 4:12 ` [PATCH 5/6] drm/i915: Do remaps for " Ben Widawsky
2013-09-18 7:48 ` Ville Syrjälä
2013-09-19 1:14 ` Ben Widawsky
2013-09-19 1:17 ` Ben Widawsky
2013-09-19 2:03 ` [PATCH] [v3] " Ben Widawsky
2013-09-18 4:12 ` [PATCH 6/6] drm/i915: s/HAS_L3_GPU_CACHE/HAS_L3_DPF Ben Widawsky
2013-09-18 7:50 ` Ville Syrjälä [this message]
2013-09-19 17:47 ` [PATCH] [v2] " Ben Widawsky
2013-09-19 18:01 ` Ben Widawsky
2013-09-19 18:41 ` Daniel Vetter
2013-09-19 19:59 ` Ben Widawsky
2013-09-18 4:12 ` [PATCH 07/14] intel_l3_parity: Fix indentation Ben Widawsky
2013-09-18 4:12 ` [PATCH 08/14] intel_l3_parity: Assert all GEN7+ support Ben Widawsky
2013-09-18 4:12 ` [PATCH 09/14] intel_l3_parity: Use getopt for the l3 parity tool Ben Widawsky
2013-09-18 4:12 ` [PATCH 10/14] intel_l3_parity: Hardware info argument Ben Widawsky
2013-09-18 4:12 ` [PATCH 11/14] intel_l3_parity: slice support Ben Widawsky
2013-09-18 4:12 ` [PATCH 12/14] intel_l3_parity: Actually support multiple slices Ben Widawsky
2013-09-18 4:12 ` [PATCH 13/14] intel_l3_parity: Support error injection Ben Widawsky
2013-09-18 4:12 ` [PATCH 14/14] intel_l3_parity: Support a daemonic mode Ben Widawsky
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