diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_sysfs.c')
-rw-r--r-- | drivers/gpu/drm/i915/i915_sysfs.c | 152 |
1 files changed, 106 insertions, 46 deletions
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c index c8c4112..cef38fd 100644 --- a/drivers/gpu/drm/i915/i915_sysfs.c +++ b/drivers/gpu/drm/i915/i915_sysfs.c @@ -32,30 +32,50 @@ #include "intel_drv.h" #include "i915_drv.h" +#define dev_to_drm_minor(d) dev_get_drvdata((d)) + #ifdef CONFIG_PM static u32 calc_residency(struct drm_device *dev, const u32 reg) { struct drm_i915_private *dev_priv = dev->dev_private; u64 raw_time; /* 32b value may overflow during fixed point math */ + u64 units = 128ULL, div = 100000ULL, bias = 100ULL; if (!intel_enable_rc6(dev)) return 0; - raw_time = I915_READ(reg) * 128ULL; - return DIV_ROUND_UP_ULL(raw_time, 100000); + /* On VLV, residency time is in CZ units rather than 1.28us */ + if (IS_VALLEYVIEW(dev)) { + u32 clkctl2; + + clkctl2 = I915_READ(VLV_CLK_CTL2) >> + CLK_CTL2_CZCOUNT_30NS_SHIFT; + if (!clkctl2) { + WARN(!clkctl2, "bogus CZ count value"); + return 0; + } + units = DIV_ROUND_UP_ULL(30ULL * bias, (u64)clkctl2); + if (I915_READ(VLV_COUNTER_CONTROL) & VLV_COUNT_RANGE_HIGH) + units <<= 8; + + div = 1000000ULL * bias; + } + + raw_time = I915_READ(reg) * units; + return DIV_ROUND_UP_ULL(raw_time, div); } static ssize_t show_rc6_mask(struct device *kdev, struct device_attribute *attr, char *buf) { - struct drm_minor *dminor = container_of(kdev, struct drm_minor, kdev); + struct drm_minor *dminor = dev_to_drm_minor(kdev); return snprintf(buf, PAGE_SIZE, "%x\n", intel_enable_rc6(dminor->dev)); } static ssize_t show_rc6_ms(struct device *kdev, struct device_attribute *attr, char *buf) { - struct drm_minor *dminor = container_of(kdev, struct drm_minor, kdev); + struct drm_minor *dminor = dev_get_drvdata(kdev); u32 rc6_residency = calc_residency(dminor->dev, GEN6_GT_GFX_RC6); return snprintf(buf, PAGE_SIZE, "%u\n", rc6_residency); } @@ -63,16 +83,20 @@ show_rc6_ms(struct device *kdev, struct device_attribute *attr, char *buf) static ssize_t show_rc6p_ms(struct device *kdev, struct device_attribute *attr, char *buf) { - struct drm_minor *dminor = container_of(kdev, struct drm_minor, kdev); + struct drm_minor *dminor = dev_to_drm_minor(kdev); u32 rc6p_residency = calc_residency(dminor->dev, GEN6_GT_GFX_RC6p); + if (IS_VALLEYVIEW(dminor->dev)) + rc6p_residency = 0; return snprintf(buf, PAGE_SIZE, "%u\n", rc6p_residency); } static ssize_t show_rc6pp_ms(struct device *kdev, struct device_attribute *attr, char *buf) { - struct drm_minor *dminor = container_of(kdev, struct drm_minor, kdev); + struct drm_minor *dminor = dev_to_drm_minor(kdev); u32 rc6pp_residency = calc_residency(dminor->dev, GEN6_GT_GFX_RC6pp); + if (IS_VALLEYVIEW(dminor->dev)) + rc6pp_residency = 0; return snprintf(buf, PAGE_SIZE, "%u\n", rc6pp_residency); } @@ -97,7 +121,7 @@ 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) @@ -115,31 +139,34 @@ i915_l3_read(struct file *filp, struct kobject *kobj, loff_t offset, size_t count) { struct device *dev = container_of(kobj, struct device, kobj); - struct drm_minor *dminor = container_of(dev, struct drm_minor, kdev); + struct drm_minor *dminor = dev_to_drm_minor(dev); struct drm_device *drm_dev = dminor->dev; struct drm_i915_private *dev_priv = drm_dev->dev_private; - uint32_t misccpctl; - int i, ret; + int slice = (int)(uintptr_t)attr->private; + int ret; + + count = round_down(count, 4); ret = l3_access_valid(drm_dev, offset); if (ret) return ret; + count = min_t(size_t, GEN7_L3LOG_SIZE - offset, count); + ret = i915_mutex_lock_interruptible(drm_dev); if (ret) return ret; - misccpctl = I915_READ(GEN7_MISCCPCTL); - I915_WRITE(GEN7_MISCCPCTL, misccpctl & ~GEN7_DOP_CLOCK_GATE_ENABLE); - - for (i = offset; count >= 4 && i < GEN7_L3LOG_SIZE; i += 4, count -= 4) - *((uint32_t *)(&buf[i])) = I915_READ(GEN7_L3LOG_BASE + i); - - I915_WRITE(GEN7_MISCCPCTL, misccpctl); + if (dev_priv->l3_parity.remap_info[slice]) + memcpy(buf, + dev_priv->l3_parity.remap_info[slice] + (offset/4), + count); + else + memset(buf, 0, count); mutex_unlock(&drm_dev->struct_mutex); - return i - offset; + return count; } static ssize_t @@ -148,21 +175,26 @@ i915_l3_write(struct file *filp, struct kobject *kobj, loff_t offset, size_t count) { struct device *dev = container_of(kobj, struct device, kobj); - struct drm_minor *dminor = container_of(dev, struct drm_minor, kdev); + struct drm_minor *dminor = dev_to_drm_minor(dev); struct drm_device *drm_dev = dminor->dev; struct drm_i915_private *dev_priv = drm_dev->dev_private; + struct i915_hw_context *ctx; u32 *temp = NULL; /* Just here to make handling failures easy */ + int slice = (int)(uintptr_t)attr->private; int ret; ret = l3_access_valid(drm_dev, offset); if (ret) return ret; + if (dev_priv->hw_contexts_disabled) + return -ENXIO; + ret = i915_mutex_lock_interruptible(drm_dev); if (ret) return ret; - if (!dev_priv->l3_parity.remap_info) { + if (!dev_priv->l3_parity.remap_info[slice]) { temp = kzalloc(GEN7_L3LOG_SIZE, GFP_KERNEL); if (!temp) { mutex_unlock(&drm_dev->struct_mutex); @@ -182,13 +214,13 @@ i915_l3_write(struct file *filp, struct kobject *kobj, * at this point it is left as a TODO. */ if (temp) - dev_priv->l3_parity.remap_info = temp; + dev_priv->l3_parity.remap_info[slice] = temp; - memcpy(dev_priv->l3_parity.remap_info + (offset/4), - buf + (offset/4), - count); + memcpy(dev_priv->l3_parity.remap_info[slice] + (offset/4), buf, count); - i915_gem_l3_remap(drm_dev); + /* NB: We defer the remapping until we switch to the context */ + list_for_each_entry(ctx, &dev_priv->context_list, link) + ctx->remap_slice |= (1<<slice); mutex_unlock(&drm_dev->struct_mutex); @@ -200,17 +232,29 @@ static struct bin_attribute dpf_attrs = { .size = GEN7_L3LOG_SIZE, .read = i915_l3_read, .write = i915_l3_write, - .mmap = NULL + .mmap = NULL, + .private = (void *)0 +}; + +static struct bin_attribute dpf_attrs_1 = { + .attr = {.name = "l3_parity_slice_1", .mode = (S_IRUSR | S_IWUSR)}, + .size = GEN7_L3LOG_SIZE, + .read = i915_l3_read, + .write = i915_l3_write, + .mmap = NULL, + .private = (void *)1 }; static ssize_t gt_cur_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) { - struct drm_minor *minor = container_of(kdev, struct drm_minor, kdev); + struct drm_minor *minor = dev_to_drm_minor(kdev); struct drm_device *dev = minor->dev; struct drm_i915_private *dev_priv = dev->dev_private; int ret; + flush_delayed_work(&dev_priv->rps.delayed_resume_work); + mutex_lock(&dev_priv->rps.hw_lock); if (IS_VALLEYVIEW(dev_priv->dev)) { u32 freq; @@ -227,7 +271,7 @@ static ssize_t gt_cur_freq_mhz_show(struct device *kdev, static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) { - struct drm_minor *minor = container_of(kdev, struct drm_minor, kdev); + struct drm_minor *minor = dev_to_drm_minor(kdev); struct drm_device *dev = minor->dev; struct drm_i915_private *dev_priv = dev->dev_private; @@ -238,11 +282,13 @@ static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev, static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) { - struct drm_minor *minor = container_of(kdev, struct drm_minor, kdev); + struct drm_minor *minor = dev_to_drm_minor(kdev); struct drm_device *dev = minor->dev; struct drm_i915_private *dev_priv = dev->dev_private; int ret; + flush_delayed_work(&dev_priv->rps.delayed_resume_work); + mutex_lock(&dev_priv->rps.hw_lock); if (IS_VALLEYVIEW(dev_priv->dev)) ret = vlv_gpu_freq(dev_priv->mem_freq, dev_priv->rps.max_delay); @@ -257,7 +303,7 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev, struct device_attribute *attr, const char *buf, size_t count) { - struct drm_minor *minor = container_of(kdev, struct drm_minor, kdev); + struct drm_minor *minor = dev_to_drm_minor(kdev); struct drm_device *dev = minor->dev; struct drm_i915_private *dev_priv = dev->dev_private; u32 val, rp_state_cap, hw_max, hw_min, non_oc_max; @@ -267,6 +313,8 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev, if (ret) return ret; + flush_delayed_work(&dev_priv->rps.delayed_resume_work); + mutex_lock(&dev_priv->rps.hw_lock); if (IS_VALLEYVIEW(dev_priv->dev)) { @@ -310,11 +358,13 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev, static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) { - struct drm_minor *minor = container_of(kdev, struct drm_minor, kdev); + struct drm_minor *minor = dev_to_drm_minor(kdev); struct drm_device *dev = minor->dev; struct drm_i915_private *dev_priv = dev->dev_private; int ret; + flush_delayed_work(&dev_priv->rps.delayed_resume_work); + mutex_lock(&dev_priv->rps.hw_lock); if (IS_VALLEYVIEW(dev_priv->dev)) ret = vlv_gpu_freq(dev_priv->mem_freq, dev_priv->rps.min_delay); @@ -329,7 +379,7 @@ static ssize_t gt_min_freq_mhz_store(struct device *kdev, struct device_attribute *attr, const char *buf, size_t count) { - struct drm_minor *minor = container_of(kdev, struct drm_minor, kdev); + struct drm_minor *minor = dev_to_drm_minor(kdev); struct drm_device *dev = minor->dev; struct drm_i915_private *dev_priv = dev->dev_private; u32 val, rp_state_cap, hw_max, hw_min; @@ -339,6 +389,8 @@ static ssize_t gt_min_freq_mhz_store(struct device *kdev, if (ret) return ret; + flush_delayed_work(&dev_priv->rps.delayed_resume_work); + mutex_lock(&dev_priv->rps.hw_lock); if (IS_VALLEYVIEW(dev)) { @@ -388,7 +440,7 @@ static DEVICE_ATTR(gt_RPn_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL); /* For now we have a static number of RP states */ static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) { - struct drm_minor *minor = container_of(kdev, struct drm_minor, kdev); + struct drm_minor *minor = dev_to_drm_minor(kdev); struct drm_device *dev = minor->dev; struct drm_i915_private *dev_priv = dev->dev_private; u32 val, rp_state_cap; @@ -436,7 +488,7 @@ static ssize_t error_state_read(struct file *filp, struct kobject *kobj, { struct device *kdev = container_of(kobj, struct device, kobj); - struct drm_minor *minor = container_of(kdev, struct drm_minor, kdev); + struct drm_minor *minor = dev_to_drm_minor(kdev); struct drm_device *dev = minor->dev; struct i915_error_state_file_priv error_priv; struct drm_i915_error_state_buf error_str; @@ -471,7 +523,7 @@ static ssize_t error_state_write(struct file *file, struct kobject *kobj, loff_t off, size_t count) { struct device *kdev = container_of(kobj, struct device, kobj); - struct drm_minor *minor = container_of(kdev, struct drm_minor, kdev); + struct drm_minor *minor = dev_to_drm_minor(kdev); struct drm_device *dev = minor->dev; int ret; @@ -501,27 +553,34 @@ void i915_setup_sysfs(struct drm_device *dev) #ifdef CONFIG_PM if (INTEL_INFO(dev)->gen >= 6) { - ret = sysfs_merge_group(&dev->primary->kdev.kobj, + ret = sysfs_merge_group(&dev->primary->kdev->kobj, &rc6_attr_group); if (ret) DRM_ERROR("RC6 residency sysfs setup failed\n"); } #endif - if (HAS_L3_GPU_CACHE(dev)) { - ret = device_create_bin_file(&dev->primary->kdev, &dpf_attrs); + 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"); + + if (NUM_L3_SLICES(dev) > 1) { + ret = device_create_bin_file(dev->primary->kdev, + &dpf_attrs_1); + if (ret) + DRM_ERROR("l3 parity slice 1 setup failed\n"); + } } ret = 0; if (IS_VALLEYVIEW(dev)) - ret = sysfs_create_files(&dev->primary->kdev.kobj, vlv_attrs); + ret = sysfs_create_files(&dev->primary->kdev->kobj, vlv_attrs); else if (INTEL_INFO(dev)->gen >= 6) - ret = sysfs_create_files(&dev->primary->kdev.kobj, gen6_attrs); + ret = sysfs_create_files(&dev->primary->kdev->kobj, gen6_attrs); if (ret) DRM_ERROR("RPS sysfs setup failed\n"); - ret = sysfs_create_bin_file(&dev->primary->kdev.kobj, + ret = sysfs_create_bin_file(&dev->primary->kdev->kobj, &error_state_attr); if (ret) DRM_ERROR("error_state sysfs setup failed\n"); @@ -529,13 +588,14 @@ void i915_setup_sysfs(struct drm_device *dev) void i915_teardown_sysfs(struct drm_device *dev) { - sysfs_remove_bin_file(&dev->primary->kdev.kobj, &error_state_attr); + sysfs_remove_bin_file(&dev->primary->kdev->kobj, &error_state_attr); if (IS_VALLEYVIEW(dev)) - sysfs_remove_files(&dev->primary->kdev.kobj, vlv_attrs); + sysfs_remove_files(&dev->primary->kdev->kobj, vlv_attrs); else - sysfs_remove_files(&dev->primary->kdev.kobj, gen6_attrs); - device_remove_bin_file(&dev->primary->kdev, &dpf_attrs); + sysfs_remove_files(&dev->primary->kdev->kobj, gen6_attrs); + device_remove_bin_file(dev->primary->kdev, &dpf_attrs_1); + device_remove_bin_file(dev->primary->kdev, &dpf_attrs); #ifdef CONFIG_PM - sysfs_unmerge_group(&dev->primary->kdev.kobj, &rc6_attr_group); + sysfs_unmerge_group(&dev->primary->kdev->kobj, &rc6_attr_group); #endif } |