<para>
At the core of every DRM driver is a <structname>drm_driver</structname>
structure. Drivers typically statically initialize a drm_driver structure,
- and then pass it to one of the <function>drm_*_init()</function> functions
- to register it with the DRM subsystem.
- </para>
- <para>
- Newer drivers that no longer require a <structname>drm_bus</structname>
- structure can alternatively use the low-level device initialization and
- registration functions such as <function>drm_dev_alloc()</function> and
- <function>drm_dev_register()</function> directly.
+ and then pass it to <function>drm_dev_alloc()</function> to allocate a
+ device instance. After the device instance is fully initialized it can be
+ registered (which makes it accessible from userspace) using
+ <function>drm_dev_register()</function>.
</para>
<para>
The <structname>drm_driver</structname> structure contains static
</sect3>
</sect2>
<sect2>
- <title>Device Registration</title>
- <para>
- A number of functions are provided to help with device registration.
- The functions deal with PCI and platform devices, respectively.
- </para>
-!Edrivers/gpu/drm/drm_pci.c
-!Edrivers/gpu/drm/drm_platform.c
- <para>
- New drivers that no longer rely on the services provided by the
- <structname>drm_bus</structname> structure can call the low-level
- device registration functions directly. The
- <function>drm_dev_alloc()</function> function can be used to allocate
- and initialize a new <structname>drm_device</structname> structure.
- Drivers will typically want to perform some additional setup on this
- structure, such as allocating driver-specific data and storing a
- pointer to it in the DRM device's <structfield>dev_private</structfield>
- field. Drivers should also set the device's unique name using the
- <function>drm_dev_set_unique()</function> function. After it has been
- set up a device can be registered with the DRM subsystem by calling
- <function>drm_dev_register()</function>. This will cause the device to
- be exposed to userspace and will call the driver's
- <structfield>.load()</structfield> implementation. When a device is
- removed, the DRM device can safely be unregistered and freed by calling
- <function>drm_dev_unregister()</function> followed by a call to
- <function>drm_dev_unref()</function>.
- </para>
+ <title>Device Instance and Driver Handling</title>
+!Pdrivers/gpu/drm/drm_drv.c driver instance overview
!Edrivers/gpu/drm/drm_drv.c
</sect2>
<sect2>
<title>Driver Load</title>
- <para>
- The <methodname>load</methodname> method is the driver and device
- initialization entry point. The method is responsible for allocating and
- initializing driver private data, performing resource allocation and
- mapping (e.g. acquiring
- clocks, mapping registers or allocating command buffers), initializing
- the memory manager (<xref linkend="drm-memory-management"/>), installing
- the IRQ handler (<xref linkend="drm-irq-registration"/>), setting up
- vertical blanking handling (<xref linkend="drm-vertical-blank"/>), mode
- setting (<xref linkend="drm-mode-setting"/>) and initial output
- configuration (<xref linkend="drm-kms-init"/>).
- </para>
- <note><para>
- If compatibility is a concern (e.g. with drivers converted over from
- User Mode Setting to Kernel Mode Setting), care must be taken to prevent
- device initialization and control that is incompatible with currently
- active userspace drivers. For instance, if user level mode setting
- drivers are in use, it would be problematic to perform output discovery
- & configuration at load time. Likewise, if user-level drivers
- unaware of memory management are in use, memory management and command
- buffer setup may need to be omitted. These requirements are
- driver-specific, and care needs to be taken to keep both old and new
- applications and libraries working.
- </para></note>
- <synopsis>int (*load) (struct drm_device *, unsigned long flags);</synopsis>
- <para>
- The method takes two arguments, a pointer to the newly created
- <structname>drm_device</structname> and flags. The flags are used to
- pass the <structfield>driver_data</structfield> field of the device id
- corresponding to the device passed to <function>drm_*_init()</function>.
- Only PCI devices currently use this, USB and platform DRM drivers have
- their <methodname>load</methodname> method called with flags to 0.
- </para>
- <sect3>
- <title>Driver Private Data</title>
- <para>
- The driver private hangs off the main
- <structname>drm_device</structname> structure and can be used for
- tracking various device-specific bits of information, like register
- offsets, command buffer status, register state for suspend/resume, etc.
- At load time, a driver may simply allocate one and set
- <structname>drm_device</structname>.<structfield>dev_priv</structfield>
- appropriately; it should be freed and
- <structname>drm_device</structname>.<structfield>dev_priv</structfield>
- set to NULL when the driver is unloaded.
- </para>
- </sect3>
<sect3 id="drm-irq-registration">
<title>IRQ Registration</title>
<para>
</para>
</sect3>
</sect2>
+ <sect2>
+ <title>Bus-specific Device Registration and PCI Support</title>
+ <para>
+ A number of functions are provided to help with device registration.
+ The functions deal with PCI and platform devices respectively and are
+ only provided for historical reasons. These are all deprecated and
+ shouldn't be used in new drivers. Besides that there's a few
+ helpers for pci drivers.
+ </para>
+!Edrivers/gpu/drm/drm_pci.c
+!Edrivers/gpu/drm/drm_platform.c
+ </sect2>
</sect1>
<!-- Internals: memory management -->
</itemizedlist>
</para>
</para>
+!Edrivers/gpu/drm/drm_ioctl.c
</sect2>
</sect1>
<sect1>
<title>High Definition Audio</title>
!Pdrivers/gpu/drm/i915/intel_audio.c High Definition Audio over HDMI and Display Port
!Idrivers/gpu/drm/i915/intel_audio.c
+ !Iinclude/drm/i915_component.h
</sect2>
<sect2>
<title>Panel Self Refresh PSR (PSR/SRD)</title>
struct drm_i915_gem_object *b =
container_of(B, struct drm_i915_gem_object, obj_exec_link);
- return a->stolen->start - b->stolen->start;
+ if (a->stolen->start < b->stolen->start)
+ return -1;
+ if (a->stolen->start > b->stolen->start)
+ return 1;
+ return 0;
}
static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
if (ret)
return ret;
- seq_printf(m, "Reserved fences = %d\n", dev_priv->fence_reg_start);
seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
for (i = 0; i < dev_priv->num_fence_regs; i++) {
struct drm_i915_gem_object *obj = dev_priv->fence_regs[i].obj;
seq_puts(m, "no P-state info available\n");
}
+ seq_printf(m, "Current CD clock frequency: %d kHz\n", dev_priv->cdclk_freq);
+ seq_printf(m, "Max CD clock frequency: %d kHz\n", dev_priv->max_cdclk_freq);
+ seq_printf(m, "Max pixel clock frequency: %d kHz\n", dev_priv->max_dotclk_freq);
+
out:
intel_runtime_pm_put(dev_priv);
return ret;
for_each_ring(ring, dev_priv, unused) {
seq_printf(m, "%s\n", ring->name);
for (i = 0; i < 4; i++) {
- u32 offset = 0x270 + i * 8;
- u64 pdp = I915_READ(ring->mmio_base + offset + 4);
+ u64 pdp = I915_READ(GEN8_RING_PDP_UDW(ring, i));
pdp <<= 32;
- pdp |= I915_READ(ring->mmio_base + offset);
+ pdp |= I915_READ(GEN8_RING_PDP_LDW(ring, i));
seq_printf(m, "\tPDP%d 0x%016llx\n", i, pdp);
}
}
struct task_struct *task;
task = get_pid_task(file->pid, PIDTYPE_PID);
- if (!task)
- return -ESRCH;
+ if (!task) {
+ ret = -ESRCH;
+ goto out_put;
+ }
seq_printf(m, "\nproc: %s\n", task->comm);
put_task_struct(task);
idr_for_each(&file_priv->context_idr, per_file_ctx,
(void *)(unsigned long)m);
}
+ out_put:
intel_runtime_pm_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
- return 0;
+ return ret;
}
static int count_irq_waiters(struct drm_i915_private *i915)
u32 state;
if (IS_845G(dev) || IS_I865G(dev))
- state = I915_READ(_CURACNTR) & CURSOR_ENABLE;
+ state = I915_READ(CURCNTR(PIPE_A)) & CURSOR_ENABLE;
else
state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE;
skl_ddb_entry_size(entry));
}
- entry = &ddb->cursor[pipe];
+ entry = &ddb->plane[pipe][PLANE_CURSOR];
seq_printf(m, " %-13s%8u%8u%8u\n", "Cursor", entry->start,
entry->end, skl_ddb_entry_size(entry));
}
}
}
+ static void broadwell_sseu_device_status(struct drm_device *dev,
+ struct sseu_dev_status *stat)
+ {
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int s;
+ u32 slice_info = I915_READ(GEN8_GT_SLICE_INFO);
+
+ stat->slice_total = hweight32(slice_info & GEN8_LSLICESTAT_MASK);
+
+ if (stat->slice_total) {
+ stat->subslice_per_slice = INTEL_INFO(dev)->subslice_per_slice;
+ stat->subslice_total = stat->slice_total *
+ stat->subslice_per_slice;
+ stat->eu_per_subslice = INTEL_INFO(dev)->eu_per_subslice;
+ stat->eu_total = stat->eu_per_subslice * stat->subslice_total;
+
+ /* subtract fused off EU(s) from enabled slice(s) */
+ for (s = 0; s < stat->slice_total; s++) {
+ u8 subslice_7eu = INTEL_INFO(dev)->subslice_7eu[s];
+
+ stat->eu_total -= hweight8(subslice_7eu);
+ }
+ }
+ }
+
static int i915_sseu_status(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
struct sseu_dev_status stat;
- if ((INTEL_INFO(dev)->gen < 8) || IS_BROADWELL(dev))
+ if (INTEL_INFO(dev)->gen < 8)
return -ENODEV;
seq_puts(m, "SSEU Device Info\n");
memset(&stat, 0, sizeof(stat));
if (IS_CHERRYVIEW(dev)) {
cherryview_sseu_device_status(dev, &stat);
+ } else if (IS_BROADWELL(dev)) {
+ broadwell_sseu_device_status(dev, &stat);
} else if (INTEL_INFO(dev)->gen >= 9) {
gen9_sseu_device_status(dev, &stat);
}
value = 1;
break;
case I915_PARAM_NUM_FENCES_AVAIL:
- value = dev_priv->num_fence_regs - dev_priv->fence_reg_start;
+ value = dev_priv->num_fence_regs;
break;
case I915_PARAM_HAS_OVERLAY:
value = dev_priv->overlay ? 1 : 0;
return 0;
}
-static int i915_setparam(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- drm_i915_setparam_t *param = data;
-
- switch (param->param) {
- case I915_SETPARAM_USE_MI_BATCHBUFFER_START:
- case I915_SETPARAM_TEX_LRU_LOG_GRANULARITY:
- case I915_SETPARAM_ALLOW_BATCHBUFFER:
- /* Reject all old ums/dri params. */
- return -ENODEV;
-
- case I915_SETPARAM_NUM_USED_FENCES:
- if (param->value > dev_priv->num_fence_regs ||
- param->value < 0)
- return -EINVAL;
- /* Userspace can use first N regs */
- dev_priv->fence_reg_start = param->value;
- break;
- default:
- DRM_DEBUG_DRIVER("unknown parameter %d\n",
- param->param);
- return -EINVAL;
- }
-
- return 0;
-}
-
static int i915_get_bridge_dev(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
info->has_eu_pg = (info->eu_per_subslice > 2);
}
+ static void broadwell_sseu_info_init(struct drm_device *dev)
+ {
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_device_info *info;
+ const int s_max = 3, ss_max = 3, eu_max = 8;
+ int s, ss;
+ u32 fuse2, eu_disable[s_max], s_enable, ss_disable;
+
+ fuse2 = I915_READ(GEN8_FUSE2);
+ s_enable = (fuse2 & GEN8_F2_S_ENA_MASK) >> GEN8_F2_S_ENA_SHIFT;
+ ss_disable = (fuse2 & GEN8_F2_SS_DIS_MASK) >> GEN8_F2_SS_DIS_SHIFT;
+
+ eu_disable[0] = I915_READ(GEN8_EU_DISABLE0) & GEN8_EU_DIS0_S0_MASK;
+ eu_disable[1] = (I915_READ(GEN8_EU_DISABLE0) >> GEN8_EU_DIS0_S1_SHIFT) |
+ ((I915_READ(GEN8_EU_DISABLE1) & GEN8_EU_DIS1_S1_MASK) <<
+ (32 - GEN8_EU_DIS0_S1_SHIFT));
+ eu_disable[2] = (I915_READ(GEN8_EU_DISABLE1) >> GEN8_EU_DIS1_S2_SHIFT) |
+ ((I915_READ(GEN8_EU_DISABLE2) & GEN8_EU_DIS2_S2_MASK) <<
+ (32 - GEN8_EU_DIS1_S2_SHIFT));
+
+
+ info = (struct intel_device_info *)&dev_priv->info;
+ info->slice_total = hweight32(s_enable);
+
+ /*
+ * The subslice disable field is global, i.e. it applies
+ * to each of the enabled slices.
+ */
+ info->subslice_per_slice = ss_max - hweight32(ss_disable);
+ info->subslice_total = info->slice_total * info->subslice_per_slice;
+
+ /*
+ * Iterate through enabled slices and subslices to
+ * count the total enabled EU.
+ */
+ for (s = 0; s < s_max; s++) {
+ if (!(s_enable & (0x1 << s)))
+ /* skip disabled slice */
+ continue;
+
+ for (ss = 0; ss < ss_max; ss++) {
+ u32 n_disabled;
+
+ if (ss_disable & (0x1 << ss))
+ /* skip disabled subslice */
+ continue;
+
+ n_disabled = hweight8(eu_disable[s] >> (ss * eu_max));
+
+ /*
+ * Record which subslices have 7 EUs.
+ */
+ if (eu_max - n_disabled == 7)
+ info->subslice_7eu[s] |= 1 << ss;
+
+ info->eu_total += eu_max - n_disabled;
+ }
+ }
+
+ /*
+ * BDW is expected to always have a uniform distribution of EU across
+ * subslices with the exception that any one EU in any one subslice may
+ * be fused off for die recovery.
+ */
+ info->eu_per_subslice = info->subslice_total ?
+ DIV_ROUND_UP(info->eu_total, info->subslice_total) : 0;
+
+ /*
+ * BDW supports slice power gating on devices with more than
+ * one slice.
+ */
+ info->has_slice_pg = (info->slice_total > 1);
+ info->has_subslice_pg = 0;
+ info->has_eu_pg = 0;
+ }
+
/*
* Determine various intel_device_info fields at runtime.
*
/* Initialize slice/subslice/EU info */
if (IS_CHERRYVIEW(dev))
cherryview_sseu_info_init(dev);
+ else if (IS_BROADWELL(dev))
+ broadwell_sseu_info_init(dev);
else if (INTEL_INFO(dev)->gen >= 9)
gen9_sseu_info_init(dev);
mutex_init(&dev_priv->sb_lock);
mutex_init(&dev_priv->modeset_restore_lock);
mutex_init(&dev_priv->csr_lock);
+ mutex_init(&dev_priv->av_mutex);
intel_pm_setup(dev);
put_bridge:
pci_dev_put(dev_priv->bridge_dev);
free_priv:
- if (dev_priv->requests)
- kmem_cache_destroy(dev_priv->requests);
- if (dev_priv->vmas)
- kmem_cache_destroy(dev_priv->vmas);
- if (dev_priv->objects)
- kmem_cache_destroy(dev_priv->objects);
+ kmem_cache_destroy(dev_priv->requests);
+ kmem_cache_destroy(dev_priv->vmas);
+ kmem_cache_destroy(dev_priv->objects);
kfree(dev_priv);
return ret;
}
if (dev_priv->regs != NULL)
pci_iounmap(dev->pdev, dev_priv->regs);
- if (dev_priv->requests)
- kmem_cache_destroy(dev_priv->requests);
- if (dev_priv->vmas)
- kmem_cache_destroy(dev_priv->vmas);
- if (dev_priv->objects)
- kmem_cache_destroy(dev_priv->objects);
-
+ kmem_cache_destroy(dev_priv->requests);
+ kmem_cache_destroy(dev_priv->vmas);
+ kmem_cache_destroy(dev_priv->objects);
pci_dev_put(dev_priv->bridge_dev);
kfree(dev_priv);
DRM_IOCTL_DEF_DRV(I915_IRQ_EMIT, drm_noop, DRM_AUTH),
DRM_IOCTL_DEF_DRV(I915_IRQ_WAIT, drm_noop, DRM_AUTH),
DRM_IOCTL_DEF_DRV(I915_GETPARAM, i915_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
- DRM_IOCTL_DEF_DRV(I915_SETPARAM, i915_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+ DRM_IOCTL_DEF_DRV(I915_SETPARAM, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
DRM_IOCTL_DEF_DRV(I915_ALLOC, drm_noop, DRM_AUTH),
DRM_IOCTL_DEF_DRV(I915_FREE, drm_noop, DRM_AUTH),
DRM_IOCTL_DEF_DRV(I915_INIT_HEAP, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
#define DRIVER_NAME "i915"
#define DRIVER_DESC "Intel Graphics"
- #define DRIVER_DATE "20150928"
+ #define DRIVER_DATE "20151010"
#undef WARN_ON
/* Many gcc seem to no see through this and fall over :( */
#define transcoder_name(t) ((t) + 'A')
/*
- * This is the maximum (across all platforms) number of planes (primary +
- * sprites) that can be active at the same time on one pipe.
- *
- * This value doesn't count the cursor plane.
+ * I915_MAX_PLANES in the enum below is the maximum (across all platforms)
+ * number of planes per CRTC. Not all platforms really have this many planes,
+ * which means some arrays of size I915_MAX_PLANES may have unused entries
+ * between the topmost sprite plane and the cursor plane.
*/
- #define I915_MAX_PLANES 4
-
enum plane {
PLANE_A = 0,
PLANE_B,
PLANE_C,
+ PLANE_CURSOR,
+ I915_MAX_PLANES,
};
#define plane_name(p) ((p) + 'A')
struct dpll *match_clock,
struct dpll *best_clock);
void (*update_wm)(struct drm_crtc *crtc);
- void (*update_sprite_wm)(struct drm_plane *plane,
- struct drm_crtc *crtc,
- uint32_t sprite_width, uint32_t sprite_height,
- int pixel_size, bool enable, bool scaled);
int (*modeset_calc_cdclk)(struct drm_atomic_state *state);
void (*modeset_commit_cdclk)(struct drm_atomic_state *state);
/* Returns the active state of the crtc, and if the crtc is active,
void (*crtc_disable)(struct drm_crtc *crtc);
void (*audio_codec_enable)(struct drm_connector *connector,
struct intel_encoder *encoder,
- struct drm_display_mode *mode);
+ const struct drm_display_mode *adjusted_mode);
void (*audio_codec_disable)(struct intel_encoder *encoder);
void (*fdi_link_train)(struct drm_crtc *crtc);
void (*init_clock_gating)(struct drm_device *dev);
/* render clock increase/decrease */
/* display clock increase/decrease */
/* pll clock increase/decrease */
-
- int (*setup_backlight)(struct intel_connector *connector, enum pipe pipe);
- uint32_t (*get_backlight)(struct intel_connector *connector);
- void (*set_backlight)(struct intel_connector *connector,
- uint32_t level);
- void (*disable_backlight)(struct intel_connector *connector);
- void (*enable_backlight)(struct intel_connector *connector);
- uint32_t (*backlight_hz_to_pwm)(struct intel_connector *connector,
- uint32_t hz);
};
enum forcewake_domain_id {
u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */
u8 rp1_freq; /* "less than" RP0 power/freqency */
u8 rp0_freq; /* Non-overclocked max frequency. */
- u32 cz_freq;
u8 up_threshold; /* Current %busy required to uplock */
u8 down_threshold; /* Current %busy required to downclock */
struct skl_ddb_allocation {
struct skl_ddb_entry pipe[I915_MAX_PIPES];
struct skl_ddb_entry plane[I915_MAX_PIPES][I915_MAX_PLANES]; /* packed/uv */
- struct skl_ddb_entry y_plane[I915_MAX_PIPES][I915_MAX_PLANES]; /* y-plane */
- struct skl_ddb_entry cursor[I915_MAX_PIPES];
+ struct skl_ddb_entry y_plane[I915_MAX_PIPES][I915_MAX_PLANES];
};
struct skl_wm_values {
struct skl_ddb_allocation ddb;
uint32_t wm_linetime[I915_MAX_PIPES];
uint32_t plane[I915_MAX_PIPES][I915_MAX_PLANES][8];
- uint32_t cursor[I915_MAX_PIPES][8];
uint32_t plane_trans[I915_MAX_PIPES][I915_MAX_PLANES];
- uint32_t cursor_trans[I915_MAX_PIPES];
};
struct skl_wm_level {
bool plane_en[I915_MAX_PLANES];
- bool cursor_en;
uint16_t plane_res_b[I915_MAX_PLANES];
uint8_t plane_res_l[I915_MAX_PLANES];
- uint16_t cursor_res_b;
- uint8_t cursor_res_l;
};
/*
struct mutex pps_mutex;
struct drm_i915_fence_reg fence_regs[I915_MAX_NUM_FENCES]; /* assume 965 */
- int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
int num_fence_regs; /* 8 on pre-965, 16 otherwise */
unsigned int fsb_freq, mem_freq, is_ddr3;
unsigned int cdclk_freq, max_cdclk_freq;
unsigned int max_dotclk_freq;
unsigned int hpll_freq;
+ unsigned int czclk_freq;
/**
* wq - Driver workqueue for GEM.
/* hda/i915 audio component */
struct i915_audio_component *audio_component;
bool audio_component_registered;
+ /**
+ * av_mutex - mutex for audio/video sync
+ *
+ */
+ struct mutex av_mutex;
uint32_t hw_context_size;
struct list_head context_list;
bool edp_low_vswing;
+ /* perform PHY state sanity checks? */
+ bool chv_phy_assert[2];
+
/*
* NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
* will be rejected. Instead look for a better place.
#define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00
#define INTEL_PCH_SPT_DEVICE_ID_TYPE 0xA100
#define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE 0x9D00
+ #define INTEL_PCH_P2X_DEVICE_ID_TYPE 0x7100
#define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type)
#define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT)
#define PIN_OFFSET_BIAS (1<<3)
#define PIN_USER (1<<4)
#define PIN_UPDATE (1<<5)
+ #define PIN_ZONE_4G (1<<6)
+ #define PIN_HIGH (1<<7)
#define PIN_OFFSET_MASK (~4095)
int __must_check
i915_gem_object_pin(struct drm_i915_gem_object *obj,
int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
u32 flags);
int __must_check i915_vma_unbind(struct i915_vma *vma);
+ /*
+ * BEWARE: Do not use the function below unless you can _absolutely_
+ * _guarantee_ VMA in question is _not in use_ anywhere.
+ */
+ int __must_check __i915_vma_unbind_no_wait(struct i915_vma *vma);
int i915_gem_object_put_pages(struct drm_i915_gem_object *obj);
void i915_gem_release_all_mmaps(struct drm_i915_private *dev_priv);
void i915_gem_release_mmap(struct drm_i915_gem_object *obj);
unsigned long end,
unsigned flags);
int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle);
- int i915_gem_evict_everything(struct drm_device *dev);
/* belongs in i915_gem_gtt.h */
static inline void i915_gem_chipset_flush(struct drm_device *dev)
/* i915_gem_shrinker.c */
unsigned long i915_gem_shrink(struct drm_i915_private *dev_priv,
- long target,
+ unsigned long target,
unsigned flags);
#define I915_SHRINK_PURGEABLE 0x1
#define I915_SHRINK_UNBOUND 0x2
#define I915_SHRINK_BOUND 0x4
+ #define I915_SHRINK_ACTIVE 0x8
unsigned long i915_gem_shrink_all(struct drm_i915_private *dev_priv);
void i915_gem_shrinker_init(struct drm_i915_private *dev_priv);
struct drm_i915_gem_object *obj)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- int fence_reg;
+ int fence_reg_lo, fence_reg_hi;
int fence_pitch_shift;
if (INTEL_INFO(dev)->gen >= 6) {
- fence_reg = FENCE_REG_SANDYBRIDGE_0;
- fence_pitch_shift = SANDYBRIDGE_FENCE_PITCH_SHIFT;
+ fence_reg_lo = FENCE_REG_GEN6_LO(reg);
+ fence_reg_hi = FENCE_REG_GEN6_HI(reg);
+ fence_pitch_shift = GEN6_FENCE_PITCH_SHIFT;
} else {
- fence_reg = FENCE_REG_965_0;
+ fence_reg_lo = FENCE_REG_965_LO(reg);
+ fence_reg_hi = FENCE_REG_965_HI(reg);
fence_pitch_shift = I965_FENCE_PITCH_SHIFT;
}
- fence_reg += reg * 8;
-
/* To w/a incoherency with non-atomic 64-bit register updates,
* we split the 64-bit update into two 32-bit writes. In order
* for a partial fence not to be evaluated between writes, we
* For extra levels of paranoia, we make sure each step lands
* before applying the next step.
*/
- I915_WRITE(fence_reg, 0);
- POSTING_READ(fence_reg);
+ I915_WRITE(fence_reg_lo, 0);
+ POSTING_READ(fence_reg_lo);
if (obj) {
u32 size = i915_gem_obj_ggtt_size(obj);
val |= 1 << I965_FENCE_TILING_Y_SHIFT;
val |= I965_FENCE_REG_VALID;
- I915_WRITE(fence_reg + 4, val >> 32);
- POSTING_READ(fence_reg + 4);
+ I915_WRITE(fence_reg_hi, val >> 32);
+ POSTING_READ(fence_reg_hi);
- I915_WRITE(fence_reg + 0, val);
- POSTING_READ(fence_reg);
+ I915_WRITE(fence_reg_lo, val);
+ POSTING_READ(fence_reg_lo);
} else {
- I915_WRITE(fence_reg + 4, 0);
- POSTING_READ(fence_reg + 4);
+ I915_WRITE(fence_reg_hi, 0);
+ POSTING_READ(fence_reg_hi);
}
}
} else
val = 0;
- if (reg < 8)
- reg = FENCE_REG_830_0 + reg * 4;
- else
- reg = FENCE_REG_945_8 + (reg - 8) * 4;
-
- I915_WRITE(reg, val);
- POSTING_READ(reg);
+ I915_WRITE(FENCE_REG(reg), val);
+ POSTING_READ(FENCE_REG(reg));
}
static void i830_write_fence_reg(struct drm_device *dev, int reg,
} else
val = 0;
- I915_WRITE(FENCE_REG_830_0 + reg * 4, val);
- POSTING_READ(FENCE_REG_830_0 + reg * 4);
+ I915_WRITE(FENCE_REG(reg), val);
+ POSTING_READ(FENCE_REG(reg));
}
inline static bool i915_gem_object_needs_mb(struct drm_i915_gem_object *obj)
/* First try to find a free reg */
avail = NULL;
- for (i = dev_priv->fence_reg_start; i < dev_priv->num_fence_regs; i++) {
+ for (i = 0; i < dev_priv->num_fence_regs; i++) {
reg = &dev_priv->fence_regs[i];
if (!reg->obj)
return reg;
/**
* i915_enable_asle_pipestat - enable ASLE pipestat for OpRegion
+ * @dev: drm device
*/
static void i915_enable_asle_pipestat(struct drm_device *dev)
{
* of horizontal active on the first line of vertical active
*/
-static u32 i8xx_get_vblank_counter(struct drm_device *dev, int pipe)
+static u32 i8xx_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
{
/* Gen2 doesn't have a hardware frame counter */
return 0;
/* Called from drm generic code, passed a 'crtc', which
* we use as a pipe index
*/
-static u32 i915_get_vblank_counter(struct drm_device *dev, int pipe)
+static u32 i915_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long high_frame;
return (((high1 << 8) | low) + (pixel >= vbl_start)) & 0xffffff;
}
-static u32 gm45_get_vblank_counter(struct drm_device *dev, int pipe)
+static u32 gm45_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int reg = PIPE_FRMCOUNT_GM45(pipe);
return (position + crtc->scanline_offset) % vtotal;
}
-static int i915_get_crtc_scanoutpos(struct drm_device *dev, int pipe,
+static int i915_get_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe,
unsigned int flags, int *vpos, int *hpos,
ktime_t *stime, ktime_t *etime,
const struct drm_display_mode *mode)
return position;
}
-static int i915_get_vblank_timestamp(struct drm_device *dev, int pipe,
+static int i915_get_vblank_timestamp(struct drm_device *dev, unsigned int pipe,
int *max_error,
struct timeval *vblank_time,
unsigned flags)
{
struct drm_crtc *crtc;
- if (pipe < 0 || pipe >= INTEL_INFO(dev)->num_pipes) {
- DRM_ERROR("Invalid crtc %d\n", pipe);
+ if (pipe >= INTEL_INFO(dev)->num_pipes) {
+ DRM_ERROR("Invalid crtc %u\n", pipe);
return -EINVAL;
}
/* Get drm_crtc to timestamp: */
crtc = intel_get_crtc_for_pipe(dev, pipe);
if (crtc == NULL) {
- DRM_ERROR("Invalid crtc %d\n", pipe);
+ DRM_ERROR("Invalid crtc %u\n", pipe);
return -EINVAL;
}
if (!crtc->hwmode.crtc_clock) {
- DRM_DEBUG_KMS("crtc %d is disabled\n", pipe);
+ DRM_DEBUG_KMS("crtc %u is disabled\n", pipe);
return -EBUSY;
}
int threshold)
{
u64 time, c0;
+ unsigned int mul = 100;
if (old->cz_clock == 0)
return false;
+ if (I915_READ(VLV_COUNTER_CONTROL) & VLV_COUNT_RANGE_HIGH)
+ mul <<= 8;
+
time = now->cz_clock - old->cz_clock;
- time *= threshold * dev_priv->mem_freq;
+ time *= threshold * dev_priv->czclk_freq;
/* Workload can be split between render + media, e.g. SwapBuffers
* being blitted in X after being rendered in mesa. To account for
*/
c0 = now->render_c0 - old->render_c0;
c0 += now->media_c0 - old->media_c0;
- c0 *= 100 * VLV_CZ_CLOCK_TO_MILLI_SEC * 4 / 1000;
+ c0 *= mul * VLV_CZ_CLOCK_TO_MILLI_SEC;
return c0 >= time;
}
/**
* i915_reset_and_wakeup - do process context error handling work
+ * @dev: drm device
*
* Fire an error uevent so userspace can see that a hang or error
* was detected.
* i915_handle_error - handle a gpu error
* @dev: drm device
*
- * Do some basic checking of regsiter state at error time and
+ * Do some basic checking of register state at error time and
* dump it to the syslog. Also call i915_capture_error_state() to make
* sure we get a record and make it available in debugfs. Fire a uevent
* so userspace knows something bad happened (should trigger collection
/* Called from drm generic code, passed 'crtc' which
* we use as a pipe index
*/
-static int i915_enable_vblank(struct drm_device *dev, int pipe)
+static int i915_enable_vblank(struct drm_device *dev, unsigned int pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long irqflags;
return 0;
}
-static int ironlake_enable_vblank(struct drm_device *dev, int pipe)
+static int ironlake_enable_vblank(struct drm_device *dev, unsigned int pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long irqflags;
return 0;
}
-static int valleyview_enable_vblank(struct drm_device *dev, int pipe)
+static int valleyview_enable_vblank(struct drm_device *dev, unsigned int pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long irqflags;
return 0;
}
-static int gen8_enable_vblank(struct drm_device *dev, int pipe)
+static int gen8_enable_vblank(struct drm_device *dev, unsigned int pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long irqflags;
/* Called from drm generic code, passed 'crtc' which
* we use as a pipe index
*/
-static void i915_disable_vblank(struct drm_device *dev, int pipe)
+static void i915_disable_vblank(struct drm_device *dev, unsigned int pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long irqflags;
spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
}
-static void ironlake_disable_vblank(struct drm_device *dev, int pipe)
+static void ironlake_disable_vblank(struct drm_device *dev, unsigned int pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long irqflags;
spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
}
-static void valleyview_disable_vblank(struct drm_device *dev, int pipe)
+static void valleyview_disable_vblank(struct drm_device *dev, unsigned int pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long irqflags;
spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
}
-static void gen8_disable_vblank(struct drm_device *dev, int pipe)
+static void gen8_disable_vblank(struct drm_device *dev, unsigned int pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long irqflags;
u64 offset = 0;
int i, backwards;
+ /*
+ * This function does not support execlist mode - any attempt to
+ * proceed further into this function will result in a kernel panic
+ * when dereferencing ring->buffer, which is not set up in execlist
+ * mode.
+ *
+ * The correct way of doing it would be to derive the currently
+ * executing ring buffer from the current context, which is derived
+ * from the currently running request. Unfortunately, to get the
+ * current request we would have to grab the struct_mutex before doing
+ * anything else, which would be ill-advised since some other thread
+ * might have grabbed it already and managed to hang itself, causing
+ * the hang checker to deadlock.
+ *
+ * Therefore, this function does not support execlist mode in its
+ * current form. Just return NULL and move on.
+ */
+ if (ring->buffer == NULL)
+ return NULL;
+
ipehr = I915_READ(RING_IPEHR(ring->mmio_base));
if (!ipehr_is_semaphore_wait(ring->dev, ipehr))
return NULL;
struct drm_atomic_state *state;
int bpp, i;
int lane_count, slots;
- struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
+ const struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
struct drm_connector *drm_connector;
struct intel_connector *connector, *found = NULL;
struct drm_connector_state *connector_state;
return false;
}
- mst_pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp);
+ mst_pbn = drm_dp_calc_pbn_mode(adjusted_mode->crtc_clock, bpp);
pipe_config->pbn = mst_pbn;
slots = drm_dp_find_vcpi_slots(&intel_dp->mst_mgr, mst_pbn);
intel_dp_start_link_train(intel_dp);
- intel_dp_complete_link_train(intel_dp);
intel_dp_stop_link_train(intel_dp);
}
drm_object_attach_property(&connector->base, dev->mode_config.tile_property, 0);
drm_mode_connector_set_path_property(connector, pathprop);
+ return connector;
+}
+
+static void intel_dp_register_mst_connector(struct drm_connector *connector)
+{
+ struct intel_connector *intel_connector = to_intel_connector(connector);
+ struct drm_device *dev = connector->dev;
drm_modeset_lock_all(dev);
intel_connector_add_to_fbdev(intel_connector);
drm_modeset_unlock_all(dev);
drm_connector_register(&intel_connector->base);
- return connector;
}
static void intel_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
static struct drm_dp_mst_topology_cbs mst_cbs = {
.add_connector = intel_dp_add_mst_connector,
+ .register_connector = intel_dp_register_mst_connector,
.destroy_connector = intel_dp_destroy_mst_connector,
.hotplug = intel_dp_mst_hotplug,
};
status_pointer = I915_READ(RING_CONTEXT_STATUS_PTR(ring));
read_pointer = ring->next_context_status_buffer;
- write_pointer = status_pointer & 0x07;
+ write_pointer = status_pointer & GEN8_CSB_PTR_MASK;
if (read_pointer > write_pointer)
- write_pointer += 6;
+ write_pointer += GEN8_CSB_ENTRIES;
spin_lock(&ring->execlist_lock);
while (read_pointer < write_pointer) {
read_pointer++;
- status = I915_READ(RING_CONTEXT_STATUS_BUF_LO(ring, read_pointer % 6));
- status_id = I915_READ(RING_CONTEXT_STATUS_BUF_HI(ring, read_pointer % 6));
+ status = I915_READ(RING_CONTEXT_STATUS_BUF_LO(ring, read_pointer % GEN8_CSB_ENTRIES));
+ status_id = I915_READ(RING_CONTEXT_STATUS_BUF_HI(ring, read_pointer % GEN8_CSB_ENTRIES));
if (status & GEN8_CTX_STATUS_IDLE_ACTIVE)
continue;
spin_unlock(&ring->execlist_lock);
WARN(submit_contexts > 2, "More than two context complete events?\n");
- ring->next_context_status_buffer = write_pointer % 6;
+ ring->next_context_status_buffer = write_pointer % GEN8_CSB_ENTRIES;
I915_WRITE(RING_CONTEXT_STATUS_PTR(ring),
- _MASKED_FIELD(0x07 << 8, ((u32)ring->next_context_status_buffer & 0x07) << 8));
+ _MASKED_FIELD(GEN8_CSB_PTR_MASK << 8,
+ ((u32)ring->next_context_status_buffer &
+ GEN8_CSB_PTR_MASK) << 8));
}
static int execlists_context_queue(struct drm_i915_gem_request *request)
return -EINVAL;
}
- if (args->num_cliprects != 0) {
- DRM_DEBUG("clip rectangles are only valid on pre-gen5\n");
- return -EINVAL;
- } else {
- if (args->DR4 == 0xffffffff) {
- DRM_DEBUG("UXA submitting garbage DR4, fixing up\n");
- args->DR4 = 0;
- }
-
- if (args->DR1 || args->DR4 || args->cliprects_ptr) {
- DRM_DEBUG("0 cliprects but dirt in cliprects fields\n");
- return -EINVAL;
- }
- }
-
if (args->flags & I915_EXEC_GEN7_SOL_RESET) {
DRM_DEBUG("sol reset is gen7 only\n");
return -EINVAL;
{
struct drm_device *dev = ring->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
+ u8 next_context_status_buffer_hw;
lrc_setup_hardware_status_page(ring,
ring->default_context->engine[ring->id].state);
_MASKED_BIT_DISABLE(GFX_REPLAY_MODE) |
_MASKED_BIT_ENABLE(GFX_RUN_LIST_ENABLE));
POSTING_READ(RING_MODE_GEN7(ring));
- ring->next_context_status_buffer = 0;
+
+ /*
+ * Instead of resetting the Context Status Buffer (CSB) read pointer to
+ * zero, we need to read the write pointer from hardware and use its
+ * value because "this register is power context save restored".
+ * Effectively, these states have been observed:
+ *
+ * | Suspend-to-idle (freeze) | Suspend-to-RAM (mem) |
+ * BDW | CSB regs not reset | CSB regs reset |
+ * CHT | CSB regs not reset | CSB regs not reset |
+ */
+ next_context_status_buffer_hw = (I915_READ(RING_CONTEXT_STATUS_PTR(ring))
+ & GEN8_CSB_PTR_MASK);
+
+ /*
+ * When the CSB registers are reset (also after power-up / gpu reset),
+ * CSB write pointer is set to all 1's, which is not valid, use '5' in
+ * this special case, so the first element read is CSB[0].
+ */
+ if (next_context_status_buffer_hw == GEN8_CSB_PTR_MASK)
+ next_context_status_buffer_hw = (GEN8_CSB_ENTRIES - 1);
+
+ ring->next_context_status_buffer = next_context_status_buffer_hw;
DRM_DEBUG_DRIVER("Execlists enabled for %s\n", ring->name);
memset(&ring->hangcheck, 0, sizeof(ring->hangcheck));
}
if (power_well->data == SKL_DISP_PW_1) {
- intel_prepare_ddi(dev);
+ if (!dev_priv->power_domains.initializing)
+ intel_prepare_ddi(dev);
gen8_irq_power_well_post_enable(dev_priv, 1 << PIPE_A);
}
}
}
} else {
if (enable_requested) {
- I915_WRITE(HSW_PWR_WELL_DRIVER, tmp & ~req_mask);
- POSTING_READ(HSW_PWR_WELL_DRIVER);
- DRM_DEBUG_KMS("Disabling %s\n", power_well->name);
+ if (IS_SKYLAKE(dev) &&
+ (power_well->data == SKL_DISP_PW_1) &&
+ (intel_csr_load_status_get(dev_priv) == FW_LOADED))
+ DRM_DEBUG_KMS("Not Disabling PW1, dmc will handle\n");
+ else {
+ I915_WRITE(HSW_PWR_WELL_DRIVER, tmp & ~req_mask);
+ POSTING_READ(HSW_PWR_WELL_DRIVER);
+ DRM_DEBUG_KMS("Disabling %s\n", power_well->name);
+ }
if ((GEN9_ENABLE_DC5(dev) || SKL_ENABLE_DC6(dev)) &&
power_well->data == SKL_DISP_PW_2) {
lookup_power_well(dev_priv, PUNIT_POWER_WELL_DPIO_CMN_D);
u32 phy_control = dev_priv->chv_phy_control;
u32 phy_status = 0;
+ u32 phy_status_mask = 0xffffffff;
u32 tmp;
+ /*
+ * The BIOS can leave the PHY is some weird state
+ * where it doesn't fully power down some parts.
+ * Disable the asserts until the PHY has been fully
+ * reset (ie. the power well has been disabled at
+ * least once).
+ */
+ if (!dev_priv->chv_phy_assert[DPIO_PHY0])
+ phy_status_mask &= ~(PHY_STATUS_CMN_LDO(DPIO_PHY0, DPIO_CH0) |
+ PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH0, 0) |
+ PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH0, 1) |
+ PHY_STATUS_CMN_LDO(DPIO_PHY0, DPIO_CH1) |
+ PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH1, 0) |
+ PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH1, 1));
+
+ if (!dev_priv->chv_phy_assert[DPIO_PHY1])
+ phy_status_mask &= ~(PHY_STATUS_CMN_LDO(DPIO_PHY1, DPIO_CH0) |
+ PHY_STATUS_SPLINE_LDO(DPIO_PHY1, DPIO_CH0, 0) |
+ PHY_STATUS_SPLINE_LDO(DPIO_PHY1, DPIO_CH0, 1));
+
if (cmn_bc->ops->is_enabled(dev_priv, cmn_bc)) {
phy_status |= PHY_POWERGOOD(DPIO_PHY0);
phy_status |= PHY_STATUS_SPLINE_LDO(DPIO_PHY1, DPIO_CH0, 1);
}
+ phy_status &= phy_status_mask;
+
/*
* The PHY may be busy with some initial calibration and whatnot,
* so the power state can take a while to actually change.
*/
- if (wait_for((tmp = I915_READ(DISPLAY_PHY_STATUS)) == phy_status, 10))
+ if (wait_for((tmp = I915_READ(DISPLAY_PHY_STATUS) & phy_status_mask) == phy_status, 10))
WARN(phy_status != tmp,
"Unexpected PHY_STATUS 0x%08x, expected 0x%08x (PHY_CONTROL=0x%08x)\n",
tmp, phy_status, dev_priv->chv_phy_control);
DRM_DEBUG_KMS("Disabled DPIO PHY%d (PHY_CONTROL=0x%08x)\n",
phy, dev_priv->chv_phy_control);
+ /* PHY is fully reset now, so we can enable the PHY state asserts */
+ dev_priv->chv_phy_assert[phy] = true;
+
assert_chv_phy_status(dev_priv);
}
enum pipe pipe = phy == DPIO_PHY0 ? PIPE_A : PIPE_C;
u32 reg, val, expected, actual;
+ /*
+ * The BIOS can leave the PHY is some weird state
+ * where it doesn't fully power down some parts.
+ * Disable the asserts until the PHY has been fully
+ * reset (ie. the power well has been disabled at
+ * least once).
+ */
+ if (!dev_priv->chv_phy_assert[phy])
+ return;
+
if (ch == DPIO_CH0)
reg = _CHV_CMN_DW0_CH0;
else
/* Make sure we're not suspended first. */
pm_runtime_get_sync(device);
- pm_runtime_disable(device);
}
/**
PHY_CH_POWER_DOWN_OVRD(mask, DPIO_PHY0, DPIO_CH1);
dev_priv->chv_phy_control |= PHY_COM_LANE_RESET_DEASSERT(DPIO_PHY0);
+
+ dev_priv->chv_phy_assert[DPIO_PHY0] = false;
+ } else {
+ dev_priv->chv_phy_assert[DPIO_PHY0] = true;
}
if (cmn_d->ops->is_enabled(dev_priv, cmn_d)) {
PHY_CH_POWER_DOWN_OVRD(mask, DPIO_PHY1, DPIO_CH0);
dev_priv->chv_phy_control |= PHY_COM_LANE_RESET_DEASSERT(DPIO_PHY1);
+
+ dev_priv->chv_phy_assert[DPIO_PHY1] = false;
+ } else {
+ dev_priv->chv_phy_assert[DPIO_PHY1] = true;
}
I915_WRITE(DISPLAY_PHY_CONTROL, dev_priv->chv_phy_control);
if (!HAS_RUNTIME_PM(dev))
return;
- pm_runtime_set_active(device);
-
/*
* RPM depends on RC6 to save restore the GT HW context, so make RC6 a
* requirement.
projects / linux-drm-fsl-dcu.git / commitdiff