From 0e4ca1008e101d781b430bfecae1ee6d945b7504 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Fri, 29 Apr 2016 13:18:22 +0100 Subject: [PATCH] drm/i915: Fix ordering of sanitize ppgtt and sanitize execlists The i915.enable_ppgtt option depends upon the state of i915.enable_execlists option - so we need to sanitize execlists first. Signed-off-by: Chris Wilson Reviewed-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/1461932305-14637-2-git-send-email-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/i915_dma.c | 13 +++++++++++++ drivers/gpu/drm/i915/i915_drv.h | 2 ++ drivers/gpu/drm/i915/i915_gem.c | 3 --- drivers/gpu/drm/i915/i915_gem_gtt.c | 16 +++++----------- drivers/gpu/drm/i915/intel_lrc.c | 2 -- 5 files changed, 20 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index f69330cf0118..c91387f1aedd 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -968,6 +968,19 @@ static void intel_device_info_runtime_init(struct drm_device *dev) info->has_subslice_pg ? "y" : "n"); DRM_DEBUG_DRIVER("has EU power gating: %s\n", info->has_eu_pg ? "y" : "n"); + + i915.enable_execlists = + intel_sanitize_enable_execlists(dev, i915.enable_execlists); + + /* + * i915.enable_ppgtt is read-only, so do an early pass to validate the + * user's requested state against the hardware/driver capabilities. We + * do this now so that we can print out any log messages once rather + * than every time we check intel_enable_ppgtt(). + */ + i915.enable_ppgtt = + intel_sanitize_enable_ppgtt(dev, i915.enable_ppgtt); + DRM_DEBUG_DRIVER("ppgtt mode: %i\n", i915.enable_ppgtt); } static void intel_init_dpio(struct drm_i915_private *dev_priv) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 7d15930b69b1..02c619e7af05 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2753,6 +2753,8 @@ extern int i915_max_ioctl; extern int i915_suspend_switcheroo(struct drm_device *dev, pm_message_t state); extern int i915_resume_switcheroo(struct drm_device *dev); +int intel_sanitize_enable_ppgtt(struct drm_device *dev, int enable_ppgtt); + /* i915_dma.c */ void __printf(3, 4) __i915_printk(struct drm_i915_private *dev_priv, const char *level, diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index e9841eab5e35..902eea787907 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4904,9 +4904,6 @@ int i915_gem_init(struct drm_device *dev) struct drm_i915_private *dev_priv = dev->dev_private; int ret; - i915.enable_execlists = intel_sanitize_enable_execlists(dev, - i915.enable_execlists); - mutex_lock(&dev->struct_mutex); if (!i915.enable_execlists) { diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 59a78f760b6b..364cf8236021 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -110,7 +110,7 @@ const struct i915_ggtt_view i915_ggtt_view_rotated = { .type = I915_GGTT_VIEW_ROTATED, }; -static int sanitize_enable_ppgtt(struct drm_device *dev, int enable_ppgtt) +int intel_sanitize_enable_ppgtt(struct drm_device *dev, int enable_ppgtt) { bool has_aliasing_ppgtt; bool has_full_ppgtt; @@ -123,12 +123,14 @@ static int sanitize_enable_ppgtt(struct drm_device *dev, int enable_ppgtt) if (intel_vgpu_active(dev)) has_full_ppgtt = false; /* emulation is too hard */ + if (!has_aliasing_ppgtt) + return 0; + /* * We don't allow disabling PPGTT for gen9+ as it's a requirement for * execlists, the sole mechanism available to submit work. */ - if (INTEL_INFO(dev)->gen < 9 && - (enable_ppgtt == 0 || !has_aliasing_ppgtt)) + if (enable_ppgtt == 0 && INTEL_INFO(dev)->gen < 9) return 0; if (enable_ppgtt == 1) @@ -3219,14 +3221,6 @@ int i915_ggtt_init_hw(struct drm_device *dev) if (intel_iommu_gfx_mapped) DRM_INFO("VT-d active for gfx access\n"); #endif - /* - * i915.enable_ppgtt is read-only, so do an early pass to validate the - * user's requested state against the hardware/driver capabilities. We - * do this now so that we can print out any log messages once rather - * than every time we check intel_enable_ppgtt(). - */ - i915.enable_ppgtt = sanitize_enable_ppgtt(dev, i915.enable_ppgtt); - DRM_DEBUG_DRIVER("ppgtt mode: %i\n", i915.enable_ppgtt); return 0; diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index b2a9072c5753..d8763524319d 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -248,8 +248,6 @@ static int intel_lr_context_pin(struct intel_context *ctx, */ int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists) { - WARN_ON(i915.enable_ppgtt == -1); - /* On platforms with execlist available, vGPU will only * support execlist mode, no ring buffer mode. */ -- 2.39.5