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-rw-r--r--drivers/gpu/drm/i915/display/intel_ddi.c14
-rw-r--r--drivers/gpu/drm/i915/display/intel_display_power.c12
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp.c5
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c1
-rw-r--r--drivers/gpu/drm/i915/display/intel_hdmi.c3
-rw-r--r--drivers/gpu/drm/i915/display/intel_sprite.c17
-rw-r--r--drivers/gpu/drm/i915/gt/intel_rps.c9
-rw-r--r--drivers/gpu/drm/i915/gvt/kvmgt.c46
-rw-r--r--drivers/gpu/drm/i915/i915_drv.h2
-rw-r--r--drivers/gpu/drm/i915/i915_perf.c65
-rw-r--r--drivers/gpu/drm/i915/i915_reg.h4
11 files changed, 77 insertions, 101 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 2c617c98db3a..52db7852827b 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3141,9 +3141,6 @@ static void hsw_ddi_pre_enable_dp(struct intel_encoder *encoder,
intel_dp_set_link_params(intel_dp, crtc_state->port_clock,
crtc_state->lane_count, is_mst);
- intel_dp->regs.dp_tp_ctl = DP_TP_CTL(port);
- intel_dp->regs.dp_tp_status = DP_TP_STATUS(port);
-
intel_edp_panel_on(intel_dp);
intel_ddi_clk_select(encoder, crtc_state);
@@ -3848,12 +3845,18 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
struct intel_crtc *intel_crtc = to_intel_crtc(pipe_config->uapi.crtc);
enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
u32 temp, flags = 0;
/* XXX: DSI transcoder paranoia */
if (drm_WARN_ON(&dev_priv->drm, transcoder_is_dsi(cpu_transcoder)))
return;
+ if (INTEL_GEN(dev_priv) >= 12) {
+ intel_dp->regs.dp_tp_ctl = TGL_DP_TP_CTL(cpu_transcoder);
+ intel_dp->regs.dp_tp_status = TGL_DP_TP_STATUS(cpu_transcoder);
+ }
+
intel_dsc_get_config(encoder, pipe_config);
temp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder));
@@ -4173,6 +4176,7 @@ static const struct drm_encoder_funcs intel_ddi_funcs = {
static struct intel_connector *
intel_ddi_init_dp_connector(struct intel_digital_port *intel_dig_port)
{
+ struct drm_i915_private *dev_priv = to_i915(intel_dig_port->base.base.dev);
struct intel_connector *connector;
enum port port = intel_dig_port->base.port;
@@ -4183,6 +4187,10 @@ intel_ddi_init_dp_connector(struct intel_digital_port *intel_dig_port)
intel_dig_port->dp.output_reg = DDI_BUF_CTL(port);
intel_dig_port->dp.prepare_link_retrain =
intel_ddi_prepare_link_retrain;
+ if (INTEL_GEN(dev_priv) < 12) {
+ intel_dig_port->dp.regs.dp_tp_ctl = DP_TP_CTL(port);
+ intel_dig_port->dp.regs.dp_tp_status = DP_TP_STATUS(port);
+ }
if (!intel_dp_init_connector(intel_dig_port, connector)) {
kfree(connector);
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index 246e406bb385..84ecf8e58523 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -4140,7 +4140,7 @@ static const struct i915_power_well_desc tgl_power_wells[] = {
{
.name = "AUX D TBT1",
.domains = TGL_AUX_D_TBT1_IO_POWER_DOMAINS,
- .ops = &hsw_power_well_ops,
+ .ops = &icl_tc_phy_aux_power_well_ops,
.id = DISP_PW_ID_NONE,
{
.hsw.regs = &icl_aux_power_well_regs,
@@ -4151,7 +4151,7 @@ static const struct i915_power_well_desc tgl_power_wells[] = {
{
.name = "AUX E TBT2",
.domains = TGL_AUX_E_TBT2_IO_POWER_DOMAINS,
- .ops = &hsw_power_well_ops,
+ .ops = &icl_tc_phy_aux_power_well_ops,
.id = DISP_PW_ID_NONE,
{
.hsw.regs = &icl_aux_power_well_regs,
@@ -4162,7 +4162,7 @@ static const struct i915_power_well_desc tgl_power_wells[] = {
{
.name = "AUX F TBT3",
.domains = TGL_AUX_F_TBT3_IO_POWER_DOMAINS,
- .ops = &hsw_power_well_ops,
+ .ops = &icl_tc_phy_aux_power_well_ops,
.id = DISP_PW_ID_NONE,
{
.hsw.regs = &icl_aux_power_well_regs,
@@ -4173,7 +4173,7 @@ static const struct i915_power_well_desc tgl_power_wells[] = {
{
.name = "AUX G TBT4",
.domains = TGL_AUX_G_TBT4_IO_POWER_DOMAINS,
- .ops = &hsw_power_well_ops,
+ .ops = &icl_tc_phy_aux_power_well_ops,
.id = DISP_PW_ID_NONE,
{
.hsw.regs = &icl_aux_power_well_regs,
@@ -4184,7 +4184,7 @@ static const struct i915_power_well_desc tgl_power_wells[] = {
{
.name = "AUX H TBT5",
.domains = TGL_AUX_H_TBT5_IO_POWER_DOMAINS,
- .ops = &hsw_power_well_ops,
+ .ops = &icl_tc_phy_aux_power_well_ops,
.id = DISP_PW_ID_NONE,
{
.hsw.regs = &icl_aux_power_well_regs,
@@ -4195,7 +4195,7 @@ static const struct i915_power_well_desc tgl_power_wells[] = {
{
.name = "AUX I TBT6",
.domains = TGL_AUX_I_TBT6_IO_POWER_DOMAINS,
- .ops = &hsw_power_well_ops,
+ .ops = &icl_tc_phy_aux_power_well_ops,
.id = DISP_PW_ID_NONE,
{
.hsw.regs = &icl_aux_power_well_regs,
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 804b1d966f66..a2fafd4499f2 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2517,9 +2517,6 @@ static void intel_dp_prepare(struct intel_encoder *encoder,
intel_crtc_has_type(pipe_config,
INTEL_OUTPUT_DP_MST));
- intel_dp->regs.dp_tp_ctl = DP_TP_CTL(port);
- intel_dp->regs.dp_tp_status = DP_TP_STATUS(port);
-
/*
* There are four kinds of DP registers:
*
@@ -7836,6 +7833,8 @@ bool intel_dp_init(struct drm_i915_private *dev_priv,
intel_dig_port->dp.output_reg = output_reg;
intel_dig_port->max_lanes = 4;
+ intel_dig_port->dp.regs.dp_tp_ctl = DP_TP_CTL(port);
+ intel_dig_port->dp.regs.dp_tp_status = DP_TP_STATUS(port);
intel_encoder->type = INTEL_OUTPUT_DP;
intel_encoder->power_domain = intel_port_to_power_domain(port);
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
index 3e706bb850a8..dbfa6895795b 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
@@ -342,6 +342,7 @@ int intel_dp_aux_init_backlight_funcs(struct intel_connector *intel_connector)
*/
if (dev_priv->vbt.backlight.type !=
INTEL_BACKLIGHT_VESA_EDP_AUX_INTERFACE &&
+ i915_modparams.enable_dpcd_backlight != 1 &&
!drm_dp_has_quirk(&intel_dp->desc, intel_dp->edid_quirks,
DP_QUIRK_FORCE_DPCD_BACKLIGHT)) {
DRM_DEV_INFO(dev->dev,
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index 39930232b253..821411b93dac 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -1536,7 +1536,8 @@ bool intel_hdmi_hdcp_check_link(struct intel_digital_port *intel_dig_port)
intel_de_write(i915, HDCP_RPRIME(i915, cpu_transcoder, port), ri.reg);
/* Wait for Ri prime match */
- if (wait_for(intel_de_read(i915, HDCP_STATUS(i915, cpu_transcoder, port)) &
+ if (wait_for((intel_de_read(i915, HDCP_STATUS(i915, cpu_transcoder, port)) &
+ (HDCP_STATUS_RI_MATCH | HDCP_STATUS_ENC)) ==
(HDCP_STATUS_RI_MATCH | HDCP_STATUS_ENC), 1)) {
DRM_ERROR("Ri' mismatch detected, link check failed (%x)\n",
intel_de_read(i915, HDCP_STATUS(i915, cpu_transcoder, port)));
diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c
index deda351719db..33d886141138 100644
--- a/drivers/gpu/drm/i915/display/intel_sprite.c
+++ b/drivers/gpu/drm/i915/display/intel_sprite.c
@@ -2817,19 +2817,25 @@ static bool skl_plane_format_mod_supported(struct drm_plane *_plane,
}
}
-static bool gen12_plane_supports_mc_ccs(enum plane_id plane_id)
+static bool gen12_plane_supports_mc_ccs(struct drm_i915_private *dev_priv,
+ enum plane_id plane_id)
{
+ /* Wa_14010477008:tgl[a0..c0] */
+ if (IS_TGL_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_C0))
+ return false;
+
return plane_id < PLANE_SPRITE4;
}
static bool gen12_plane_format_mod_supported(struct drm_plane *_plane,
u32 format, u64 modifier)
{
+ struct drm_i915_private *dev_priv = to_i915(_plane->dev);
struct intel_plane *plane = to_intel_plane(_plane);
switch (modifier) {
case I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS:
- if (!gen12_plane_supports_mc_ccs(plane->id))
+ if (!gen12_plane_supports_mc_ccs(dev_priv, plane->id))
return false;
/* fall through */
case DRM_FORMAT_MOD_LINEAR:
@@ -2998,9 +3004,10 @@ static const u32 *icl_get_plane_formats(struct drm_i915_private *dev_priv,
}
}
-static const u64 *gen12_get_plane_modifiers(enum plane_id plane_id)
+static const u64 *gen12_get_plane_modifiers(struct drm_i915_private *dev_priv,
+ enum plane_id plane_id)
{
- if (gen12_plane_supports_mc_ccs(plane_id))
+ if (gen12_plane_supports_mc_ccs(dev_priv, plane_id))
return gen12_plane_format_modifiers_mc_ccs;
else
return gen12_plane_format_modifiers_rc_ccs;
@@ -3070,7 +3077,7 @@ skl_universal_plane_create(struct drm_i915_private *dev_priv,
plane->has_ccs = skl_plane_has_ccs(dev_priv, pipe, plane_id);
if (INTEL_GEN(dev_priv) >= 12) {
- modifiers = gen12_get_plane_modifiers(plane_id);
+ modifiers = gen12_get_plane_modifiers(dev_priv, plane_id);
plane_funcs = &gen12_plane_funcs;
} else {
if (plane->has_ccs)
diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c
index cfaf141bac4d..19542fd9e207 100644
--- a/drivers/gpu/drm/i915/gt/intel_rps.c
+++ b/drivers/gpu/drm/i915/gt/intel_rps.c
@@ -81,13 +81,14 @@ static void rps_enable_interrupts(struct intel_rps *rps)
events = (GEN6_PM_RP_UP_THRESHOLD |
GEN6_PM_RP_DOWN_THRESHOLD |
GEN6_PM_RP_DOWN_TIMEOUT);
-
WRITE_ONCE(rps->pm_events, events);
+
spin_lock_irq(&gt->irq_lock);
gen6_gt_pm_enable_irq(gt, rps->pm_events);
spin_unlock_irq(&gt->irq_lock);
- set(gt->uncore, GEN6_PMINTRMSK, rps_pm_mask(rps, rps->cur_freq));
+ intel_uncore_write(gt->uncore,
+ GEN6_PMINTRMSK, rps_pm_mask(rps, rps->last_freq));
}
static void gen6_rps_reset_interrupts(struct intel_rps *rps)
@@ -120,7 +121,9 @@ static void rps_disable_interrupts(struct intel_rps *rps)
struct intel_gt *gt = rps_to_gt(rps);
WRITE_ONCE(rps->pm_events, 0);
- set(gt->uncore, GEN6_PMINTRMSK, rps_pm_sanitize_mask(rps, ~0u));
+
+ intel_uncore_write(gt->uncore,
+ GEN6_PMINTRMSK, rps_pm_sanitize_mask(rps, ~0u));
spin_lock_irq(&gt->irq_lock);
gen6_gt_pm_disable_irq(gt, GEN6_PM_RPS_EVENTS);
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 074c4efb58eb..eee530453aa6 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -131,6 +131,7 @@ struct kvmgt_vdev {
struct work_struct release_work;
atomic_t released;
struct vfio_device *vfio_device;
+ struct vfio_group *vfio_group;
};
static inline struct kvmgt_vdev *kvmgt_vdev(struct intel_vgpu *vgpu)
@@ -151,6 +152,7 @@ static void gvt_unpin_guest_page(struct intel_vgpu *vgpu, unsigned long gfn,
unsigned long size)
{
struct drm_i915_private *i915 = vgpu->gvt->gt->i915;
+ struct kvmgt_vdev *vdev = kvmgt_vdev(vgpu);
int total_pages;
int npage;
int ret;
@@ -160,7 +162,7 @@ static void gvt_unpin_guest_page(struct intel_vgpu *vgpu, unsigned long gfn,
for (npage = 0; npage < total_pages; npage++) {
unsigned long cur_gfn = gfn + npage;
- ret = vfio_unpin_pages(mdev_dev(kvmgt_vdev(vgpu)->mdev), &cur_gfn, 1);
+ ret = vfio_group_unpin_pages(vdev->vfio_group, &cur_gfn, 1);
drm_WARN_ON(&i915->drm, ret != 1);
}
}
@@ -169,6 +171,7 @@ static void gvt_unpin_guest_page(struct intel_vgpu *vgpu, unsigned long gfn,
static int gvt_pin_guest_page(struct intel_vgpu *vgpu, unsigned long gfn,
unsigned long size, struct page **page)
{
+ struct kvmgt_vdev *vdev = kvmgt_vdev(vgpu);
unsigned long base_pfn = 0;
int total_pages;
int npage;
@@ -183,8 +186,8 @@ static int gvt_pin_guest_page(struct intel_vgpu *vgpu, unsigned long gfn,
unsigned long cur_gfn = gfn + npage;
unsigned long pfn;
- ret = vfio_pin_pages(mdev_dev(kvmgt_vdev(vgpu)->mdev), &cur_gfn, 1,
- IOMMU_READ | IOMMU_WRITE, &pfn);
+ ret = vfio_group_pin_pages(vdev->vfio_group, &cur_gfn, 1,
+ IOMMU_READ | IOMMU_WRITE, &pfn);
if (ret != 1) {
gvt_vgpu_err("vfio_pin_pages failed for gfn 0x%lx, ret %d\n",
cur_gfn, ret);
@@ -792,6 +795,7 @@ static int intel_vgpu_open(struct mdev_device *mdev)
struct kvmgt_vdev *vdev = kvmgt_vdev(vgpu);
unsigned long events;
int ret;
+ struct vfio_group *vfio_group;
vdev->iommu_notifier.notifier_call = intel_vgpu_iommu_notifier;
vdev->group_notifier.notifier_call = intel_vgpu_group_notifier;
@@ -814,6 +818,14 @@ static int intel_vgpu_open(struct mdev_device *mdev)
goto undo_iommu;
}
+ vfio_group = vfio_group_get_external_user_from_dev(mdev_dev(mdev));
+ if (IS_ERR_OR_NULL(vfio_group)) {
+ ret = !vfio_group ? -EFAULT : PTR_ERR(vfio_group);
+ gvt_vgpu_err("vfio_group_get_external_user_from_dev failed\n");
+ goto undo_register;
+ }
+ vdev->vfio_group = vfio_group;
+
/* Take a module reference as mdev core doesn't take
* a reference for vendor driver.
*/
@@ -830,6 +842,10 @@ static int intel_vgpu_open(struct mdev_device *mdev)
return ret;
undo_group:
+ vfio_group_put_external_user(vdev->vfio_group);
+ vdev->vfio_group = NULL;
+
+undo_register:
vfio_unregister_notifier(mdev_dev(mdev), VFIO_GROUP_NOTIFY,
&vdev->group_notifier);
@@ -884,6 +900,7 @@ static void __intel_vgpu_release(struct intel_vgpu *vgpu)
kvmgt_guest_exit(info);
intel_vgpu_release_msi_eventfd_ctx(vgpu);
+ vfio_group_put_external_user(vdev->vfio_group);
vdev->kvm = NULL;
vgpu->handle = 0;
@@ -2035,33 +2052,14 @@ static int kvmgt_rw_gpa(unsigned long handle, unsigned long gpa,
void *buf, unsigned long len, bool write)
{
struct kvmgt_guest_info *info;
- struct kvm *kvm;
- int idx, ret;
- bool kthread = current->mm == NULL;
if (!handle_valid(handle))
return -ESRCH;
info = (struct kvmgt_guest_info *)handle;
- kvm = info->kvm;
-
- if (kthread) {
- if (!mmget_not_zero(kvm->mm))
- return -EFAULT;
- use_mm(kvm->mm);
- }
-
- idx = srcu_read_lock(&kvm->srcu);
- ret = write ? kvm_write_guest(kvm, gpa, buf, len) :
- kvm_read_guest(kvm, gpa, buf, len);
- srcu_read_unlock(&kvm->srcu, idx);
-
- if (kthread) {
- unuse_mm(kvm->mm);
- mmput(kvm->mm);
- }
- return ret;
+ return vfio_dma_rw(kvmgt_vdev(info->vgpu)->vfio_group,
+ gpa, buf, len, write);
}
static int kvmgt_read_gpa(unsigned long handle, unsigned long gpa,
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 1f5b9a584f71..62b901ffabf9 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1507,6 +1507,8 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
(IS_ICELAKE(p) && IS_REVID(p, since, until))
#define TGL_REVID_A0 0x0
+#define TGL_REVID_B0 0x1
+#define TGL_REVID_C0 0x2
#define IS_TGL_REVID(p, since, until) \
(IS_TIGERLAKE(p) && IS_REVID(p, since, until))
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 551be589d6f4..66a46e41d5ef 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -2941,49 +2941,6 @@ void i915_oa_init_reg_state(const struct intel_context *ce,
}
/**
- * i915_perf_read_locked - &i915_perf_stream_ops->read with error normalisation
- * @stream: An i915 perf stream
- * @file: An i915 perf stream file
- * @buf: destination buffer given by userspace
- * @count: the number of bytes userspace wants to read
- * @ppos: (inout) file seek position (unused)
- *
- * Besides wrapping &i915_perf_stream_ops->read this provides a common place to
- * ensure that if we've successfully copied any data then reporting that takes
- * precedence over any internal error status, so the data isn't lost.
- *
- * For example ret will be -ENOSPC whenever there is more buffered data than
- * can be copied to userspace, but that's only interesting if we weren't able
- * to copy some data because it implies the userspace buffer is too small to
- * receive a single record (and we never split records).
- *
- * Another case with ret == -EFAULT is more of a grey area since it would seem
- * like bad form for userspace to ask us to overrun its buffer, but the user
- * knows best:
- *
- * http://yarchive.net/comp/linux/partial_reads_writes.html
- *
- * Returns: The number of bytes copied or a negative error code on failure.
- */
-static ssize_t i915_perf_read_locked(struct i915_perf_stream *stream,
- struct file *file,
- char __user *buf,
- size_t count,
- loff_t *ppos)
-{
- /* Note we keep the offset (aka bytes read) separate from any
- * error status so that the final check for whether we return
- * the bytes read with a higher precedence than any error (see
- * comment below) doesn't need to be handled/duplicated in
- * stream->ops->read() implementations.
- */
- size_t offset = 0;
- int ret = stream->ops->read(stream, buf, count, &offset);
-
- return offset ?: (ret ?: -EAGAIN);
-}
-
-/**
* i915_perf_read - handles read() FOP for i915 perf stream FDs
* @file: An i915 perf stream file
* @buf: destination buffer given by userspace
@@ -3008,7 +2965,8 @@ static ssize_t i915_perf_read(struct file *file,
{
struct i915_perf_stream *stream = file->private_data;
struct i915_perf *perf = stream->perf;
- ssize_t ret;
+ size_t offset = 0;
+ int ret;
/* To ensure it's handled consistently we simply treat all reads of a
* disabled stream as an error. In particular it might otherwise lead
@@ -3031,13 +2989,12 @@ static ssize_t i915_perf_read(struct file *file,
return ret;
mutex_lock(&perf->lock);
- ret = i915_perf_read_locked(stream, file,
- buf, count, ppos);
+ ret = stream->ops->read(stream, buf, count, &offset);
mutex_unlock(&perf->lock);
- } while (ret == -EAGAIN);
+ } while (!offset && !ret);
} else {
mutex_lock(&perf->lock);
- ret = i915_perf_read_locked(stream, file, buf, count, ppos);
+ ret = stream->ops->read(stream, buf, count, &offset);
mutex_unlock(&perf->lock);
}
@@ -3048,15 +3005,15 @@ static ssize_t i915_perf_read(struct file *file,
* and read() returning -EAGAIN. Clearing the oa.pollin state here
* effectively ensures we back off until the next hrtimer callback
* before reporting another EPOLLIN event.
+ * The exception to this is if ops->read() returned -ENOSPC which means
+ * that more OA data is available than could fit in the user provided
+ * buffer. In this case we want the next poll() call to not block.
*/
- if (ret >= 0 || ret == -EAGAIN) {
- /* Maybe make ->pollin per-stream state if we support multiple
- * concurrent streams in the future.
- */
+ if (ret != -ENOSPC)
stream->pollin = false;
- }
- return ret;
+ /* Possible values for ret are 0, -EFAULT, -ENOSPC, -EIO, ... */
+ return offset ?: (ret ?: -EAGAIN);
}
static enum hrtimer_restart oa_poll_check_timer_cb(struct hrtimer *hrtimer)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 59e64acc2c56..e0c6021fdaf9 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -34,8 +34,8 @@
* Follow the style described here for new macros, and while changing existing
* macros. Do **not** mass change existing definitions just to update the style.
*
- * Layout
- * ~~~~~~
+ * File Layout
+ * ~~~~~~~~~~~
*
* Keep helper macros near the top. For example, _PIPE() and friends.
*