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path: root/drivers/gpu/drm/i915/i915_sysfs.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_sysfs.c')
-rw-r--r--drivers/gpu/drm/i915/i915_sysfs.c152
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 c8c4112de110..cef38fd320a7 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
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-29 18:45:48 +0300