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drm/i915/perf: Wean ourselves off dev_priv
authorChris Wilson <chris@chris-wilson.co.uk>
Mon, 7 Oct 2019 21:09:41 +0000 (22:09 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Tue, 8 Oct 2019 06:52:35 +0000 (07:52 +0100)
Use the local uncore accessors for the GT rather than using the [not-so]
magic global dev_priv mmio routines. In the process, we also teach the
perf stream to use backpointers to the i915_perf rather than digging it
out of dev_priv.

v2: Rebase onto i915_perf_types.h

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> #v1
Link: https://patchwork.freedesktop.org/patch/msgid/20191007140812.10963-1-chris@chris-wilson.co.uk
Link: https://patchwork.freedesktop.org/patch/msgid/20191007210942.18145-1-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/i915/i915_perf.c
drivers/gpu/drm/i915/i915_perf_types.h

index 1b8fd3a..dd0eb8d 100644 (file)
@@ -1332,61 +1332,7 @@ struct drm_i915_private {
 
        struct intel_runtime_pm runtime_pm;
 
-       struct {
-               bool initialized;
-
-               struct kobject *metrics_kobj;
-               struct ctl_table_header *sysctl_header;
-
-               /*
-                * Lock associated with adding/modifying/removing OA configs
-                * in dev_priv->perf.metrics_idr.
-                */
-               struct mutex metrics_lock;
-
-               /*
-                * List of dynamic configurations, you need to hold
-                * dev_priv->perf.metrics_lock to access it.
-                */
-               struct idr metrics_idr;
-
-               /*
-                * Lock associated with anything below within this structure
-                * except exclusive_stream.
-                */
-               struct mutex lock;
-               struct list_head streams;
-
-               /*
-                * The stream currently using the OA unit. If accessed
-                * outside a syscall associated to its file
-                * descriptor, you need to hold
-                * dev_priv->drm.struct_mutex.
-                */
-               struct i915_perf_stream *exclusive_stream;
-
-               /**
-                * For rate limiting any notifications of spurious
-                * invalid OA reports
-                */
-               struct ratelimit_state spurious_report_rs;
-
-               struct i915_oa_config test_config;
-
-               u32 gen7_latched_oastatus1;
-               u32 ctx_oactxctrl_offset;
-               u32 ctx_flexeu0_offset;
-
-               /**
-                * The RPT_ID/reason field for Gen8+ includes a bit
-                * to determine if the CTX ID in the report is valid
-                * but the specific bit differs between Gen 8 and 9
-                */
-               u32 gen8_valid_ctx_bit;
-
-               struct i915_oa_ops ops;
-               const struct i915_oa_format *oa_formats;
-       } perf;
+       struct i915_perf perf;
 
        /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
        struct intel_gt gt;
index 231388d..5a25bbe 100644 (file)
@@ -367,8 +367,7 @@ struct perf_open_properties {
 
 static enum hrtimer_restart oa_poll_check_timer_cb(struct hrtimer *hrtimer);
 
-static void free_oa_config(struct drm_i915_private *dev_priv,
-                          struct i915_oa_config *oa_config)
+static void free_oa_config(struct i915_oa_config *oa_config)
 {
        if (!PTR_ERR(oa_config->flex_regs))
                kfree(oa_config->flex_regs);
@@ -379,53 +378,52 @@ static void free_oa_config(struct drm_i915_private *dev_priv,
        kfree(oa_config);
 }
 
-static void put_oa_config(struct drm_i915_private *dev_priv,
-                         struct i915_oa_config *oa_config)
+static void put_oa_config(struct i915_oa_config *oa_config)
 {
        if (!atomic_dec_and_test(&oa_config->ref_count))
                return;
 
-       free_oa_config(dev_priv, oa_config);
+       free_oa_config(oa_config);
 }
 
-static int get_oa_config(struct drm_i915_private *dev_priv,
+static int get_oa_config(struct i915_perf *perf,
                         int metrics_set,
                         struct i915_oa_config **out_config)
 {
        int ret;
 
        if (metrics_set == 1) {
-               *out_config = &dev_priv->perf.test_config;
-               atomic_inc(&dev_priv->perf.test_config.ref_count);
+               *out_config = &perf->test_config;
+               atomic_inc(&perf->test_config.ref_count);
                return 0;
        }
 
-       ret = mutex_lock_interruptible(&dev_priv->perf.metrics_lock);
+       ret = mutex_lock_interruptible(&perf->metrics_lock);
        if (ret)
                return ret;
 
-       *out_config = idr_find(&dev_priv->perf.metrics_idr, metrics_set);
+       *out_config = idr_find(&perf->metrics_idr, metrics_set);
        if (!*out_config)
                ret = -EINVAL;
        else
                atomic_inc(&(*out_config)->ref_count);
 
-       mutex_unlock(&dev_priv->perf.metrics_lock);
+       mutex_unlock(&perf->metrics_lock);
 
        return ret;
 }
 
 static u32 gen8_oa_hw_tail_read(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct intel_uncore *uncore = stream->gt->uncore;
 
-       return I915_READ(GEN8_OATAILPTR) & GEN8_OATAILPTR_MASK;
+       return intel_uncore_read(uncore, GEN8_OATAILPTR) & GEN8_OATAILPTR_MASK;
 }
 
 static u32 gen7_oa_hw_tail_read(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
-       u32 oastatus1 = I915_READ(GEN7_OASTATUS1);
+       struct intel_uncore *uncore = stream->gt->uncore;
+       u32 oastatus1 = intel_uncore_read(uncore, GEN7_OASTATUS1);
 
        return oastatus1 & GEN7_OASTATUS1_TAIL_MASK;
 }
@@ -456,7 +454,6 @@ static u32 gen7_oa_hw_tail_read(struct i915_perf_stream *stream)
  */
 static bool oa_buffer_check_unlocked(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
        int report_size = stream->oa_buffer.format_size;
        unsigned long flags;
        unsigned int aged_idx;
@@ -479,7 +476,7 @@ static bool oa_buffer_check_unlocked(struct i915_perf_stream *stream)
        aged_tail = stream->oa_buffer.tails[aged_idx].offset;
        aging_tail = stream->oa_buffer.tails[!aged_idx].offset;
 
-       hw_tail = dev_priv->perf.ops.oa_hw_tail_read(stream);
+       hw_tail = stream->perf->ops.oa_hw_tail_read(stream);
 
        /* The tail pointer increases in 64 byte increments,
         * not in report_size steps...
@@ -655,7 +652,7 @@ static int gen8_append_oa_reports(struct i915_perf_stream *stream,
                                  size_t count,
                                  size_t *offset)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct intel_uncore *uncore = stream->gt->uncore;
        int report_size = stream->oa_buffer.format_size;
        u8 *oa_buf_base = stream->oa_buffer.vaddr;
        u32 gtt_offset = i915_ggtt_offset(stream->oa_buffer.vma);
@@ -740,7 +737,7 @@ static int gen8_append_oa_reports(struct i915_perf_stream *stream,
                reason = ((report32[0] >> OAREPORT_REASON_SHIFT) &
                          OAREPORT_REASON_MASK);
                if (reason == 0) {
-                       if (__ratelimit(&dev_priv->perf.spurious_report_rs))
+                       if (__ratelimit(&stream->perf->spurious_report_rs))
                                DRM_NOTE("Skipping spurious, invalid OA report\n");
                        continue;
                }
@@ -755,7 +752,7 @@ static int gen8_append_oa_reports(struct i915_perf_stream *stream,
                 * Note: that we don't clear the valid_ctx_bit so userspace can
                 * understand that the ID has been squashed by the kernel.
                 */
-               if (!(report32[0] & dev_priv->perf.gen8_valid_ctx_bit))
+               if (!(report32[0] & stream->perf->gen8_valid_ctx_bit))
                        ctx_id = report32[2] = INVALID_CTX_ID;
 
                /*
@@ -789,7 +786,7 @@ static int gen8_append_oa_reports(struct i915_perf_stream *stream,
                 * switches since it's not-uncommon for periodic samples to
                 * identify a switch before any 'context switch' report.
                 */
-               if (!dev_priv->perf.exclusive_stream->ctx ||
+               if (!stream->perf->exclusive_stream->ctx ||
                    stream->specific_ctx_id == ctx_id ||
                    stream->oa_buffer.last_ctx_id == stream->specific_ctx_id ||
                    reason & OAREPORT_REASON_CTX_SWITCH) {
@@ -798,7 +795,7 @@ static int gen8_append_oa_reports(struct i915_perf_stream *stream,
                         * While filtering for a single context we avoid
                         * leaking the IDs of other contexts.
                         */
-                       if (dev_priv->perf.exclusive_stream->ctx &&
+                       if (stream->perf->exclusive_stream->ctx &&
                            stream->specific_ctx_id != ctx_id) {
                                report32[2] = INVALID_CTX_ID;
                        }
@@ -830,7 +827,8 @@ static int gen8_append_oa_reports(struct i915_perf_stream *stream,
                 */
                head += gtt_offset;
 
-               I915_WRITE(GEN8_OAHEADPTR, head & GEN8_OAHEADPTR_MASK);
+               intel_uncore_write(uncore, GEN8_OAHEADPTR,
+                                  head & GEN8_OAHEADPTR_MASK);
                stream->oa_buffer.head = head;
 
                spin_unlock_irqrestore(&stream->oa_buffer.ptr_lock, flags);
@@ -864,14 +862,14 @@ static int gen8_oa_read(struct i915_perf_stream *stream,
                        size_t count,
                        size_t *offset)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct intel_uncore *uncore = stream->gt->uncore;
        u32 oastatus;
        int ret;
 
        if (WARN_ON(!stream->oa_buffer.vaddr))
                return -EIO;
 
-       oastatus = I915_READ(GEN8_OASTATUS);
+       oastatus = intel_uncore_read(uncore, GEN8_OASTATUS);
 
        /*
         * We treat OABUFFER_OVERFLOW as a significant error:
@@ -896,14 +894,14 @@ static int gen8_oa_read(struct i915_perf_stream *stream,
                DRM_DEBUG("OA buffer overflow (exponent = %d): force restart\n",
                          stream->period_exponent);
 
-               dev_priv->perf.ops.oa_disable(stream);
-               dev_priv->perf.ops.oa_enable(stream);
+               stream->perf->ops.oa_disable(stream);
+               stream->perf->ops.oa_enable(stream);
 
                /*
                 * Note: .oa_enable() is expected to re-init the oabuffer and
                 * reset GEN8_OASTATUS for us
                 */
-               oastatus = I915_READ(GEN8_OASTATUS);
+               oastatus = intel_uncore_read(uncore, GEN8_OASTATUS);
        }
 
        if (oastatus & GEN8_OASTATUS_REPORT_LOST) {
@@ -911,8 +909,8 @@ static int gen8_oa_read(struct i915_perf_stream *stream,
                                       DRM_I915_PERF_RECORD_OA_REPORT_LOST);
                if (ret)
                        return ret;
-               I915_WRITE(GEN8_OASTATUS,
-                          oastatus & ~GEN8_OASTATUS_REPORT_LOST);
+               intel_uncore_write(uncore, GEN8_OASTATUS,
+                                  oastatus & ~GEN8_OASTATUS_REPORT_LOST);
        }
 
        return gen8_append_oa_reports(stream, buf, count, offset);
@@ -943,7 +941,7 @@ static int gen7_append_oa_reports(struct i915_perf_stream *stream,
                                  size_t count,
                                  size_t *offset)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct intel_uncore *uncore = stream->gt->uncore;
        int report_size = stream->oa_buffer.format_size;
        u8 *oa_buf_base = stream->oa_buffer.vaddr;
        u32 gtt_offset = i915_ggtt_offset(stream->oa_buffer.vma);
@@ -1017,7 +1015,7 @@ static int gen7_append_oa_reports(struct i915_perf_stream *stream,
                 * copying it to userspace...
                 */
                if (report32[0] == 0) {
-                       if (__ratelimit(&dev_priv->perf.spurious_report_rs))
+                       if (__ratelimit(&stream->perf->spurious_report_rs))
                                DRM_NOTE("Skipping spurious, invalid OA report\n");
                        continue;
                }
@@ -1043,9 +1041,9 @@ static int gen7_append_oa_reports(struct i915_perf_stream *stream,
                 */
                head += gtt_offset;
 
-               I915_WRITE(GEN7_OASTATUS2,
-                          ((head & GEN7_OASTATUS2_HEAD_MASK) |
-                           GEN7_OASTATUS2_MEM_SELECT_GGTT));
+               intel_uncore_write(uncore, GEN7_OASTATUS2,
+                                  (head & GEN7_OASTATUS2_HEAD_MASK) |
+                                  GEN7_OASTATUS2_MEM_SELECT_GGTT);
                stream->oa_buffer.head = head;
 
                spin_unlock_irqrestore(&stream->oa_buffer.ptr_lock, flags);
@@ -1075,21 +1073,21 @@ static int gen7_oa_read(struct i915_perf_stream *stream,
                        size_t count,
                        size_t *offset)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct intel_uncore *uncore = stream->gt->uncore;
        u32 oastatus1;
        int ret;
 
        if (WARN_ON(!stream->oa_buffer.vaddr))
                return -EIO;
 
-       oastatus1 = I915_READ(GEN7_OASTATUS1);
+       oastatus1 = intel_uncore_read(uncore, GEN7_OASTATUS1);
 
        /* XXX: On Haswell we don't have a safe way to clear oastatus1
         * bits while the OA unit is enabled (while the tail pointer
         * may be updated asynchronously) so we ignore status bits
         * that have already been reported to userspace.
         */
-       oastatus1 &= ~dev_priv->perf.gen7_latched_oastatus1;
+       oastatus1 &= ~stream->perf->gen7_latched_oastatus1;
 
        /* We treat OABUFFER_OVERFLOW as a significant error:
         *
@@ -1120,10 +1118,10 @@ static int gen7_oa_read(struct i915_perf_stream *stream,
                DRM_DEBUG("OA buffer overflow (exponent = %d): force restart\n",
                          stream->period_exponent);
 
-               dev_priv->perf.ops.oa_disable(stream);
-               dev_priv->perf.ops.oa_enable(stream);
+               stream->perf->ops.oa_disable(stream);
+               stream->perf->ops.oa_enable(stream);
 
-               oastatus1 = I915_READ(GEN7_OASTATUS1);
+               oastatus1 = intel_uncore_read(uncore, GEN7_OASTATUS1);
        }
 
        if (unlikely(oastatus1 & GEN7_OASTATUS1_REPORT_LOST)) {
@@ -1131,7 +1129,7 @@ static int gen7_oa_read(struct i915_perf_stream *stream,
                                       DRM_I915_PERF_RECORD_OA_REPORT_LOST);
                if (ret)
                        return ret;
-               dev_priv->perf.gen7_latched_oastatus1 |=
+               stream->perf->gen7_latched_oastatus1 |=
                        GEN7_OASTATUS1_REPORT_LOST;
        }
 
@@ -1196,9 +1194,7 @@ static int i915_oa_read(struct i915_perf_stream *stream,
                        size_t count,
                        size_t *offset)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
-
-       return dev_priv->perf.ops.read(stream, buf, count, offset);
+       return stream->perf->ops.read(stream, buf, count, offset);
 }
 
 static struct intel_context *oa_pin_context(struct i915_perf_stream *stream)
@@ -1239,14 +1235,13 @@ static struct intel_context *oa_pin_context(struct i915_perf_stream *stream)
  */
 static int oa_get_render_ctx_id(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *i915 = stream->dev_priv;
        struct intel_context *ce;
 
        ce = oa_pin_context(stream);
        if (IS_ERR(ce))
                return PTR_ERR(ce);
 
-       switch (INTEL_GEN(i915)) {
+       switch (INTEL_GEN(ce->engine->i915)) {
        case 7: {
                /*
                 * On Haswell we don't do any post processing of the reports
@@ -1260,7 +1255,7 @@ static int oa_get_render_ctx_id(struct i915_perf_stream *stream)
        case 8:
        case 9:
        case 10:
-               if (USES_GUC_SUBMISSION(i915)) {
+               if (USES_GUC_SUBMISSION(ce->engine->i915)) {
                        /*
                         * When using GuC, the context descriptor we write in
                         * i915 is read by GuC and rewritten before it's
@@ -1296,7 +1291,7 @@ static int oa_get_render_ctx_id(struct i915_perf_stream *stream)
        }
 
        default:
-               MISSING_CASE(INTEL_GEN(i915));
+               MISSING_CASE(INTEL_GEN(ce->engine->i915));
        }
 
        ce->tag = stream->specific_ctx_id_mask;
@@ -1340,38 +1335,38 @@ free_oa_buffer(struct i915_perf_stream *stream)
 
 static void i915_oa_stream_destroy(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct i915_perf *perf = stream->perf;
 
-       BUG_ON(stream != dev_priv->perf.exclusive_stream);
+       BUG_ON(stream != perf->exclusive_stream);
 
        /*
         * Unset exclusive_stream first, it will be checked while disabling
         * the metric set on gen8+.
         */
-       mutex_lock(&dev_priv->drm.struct_mutex);
-       dev_priv->perf.exclusive_stream = NULL;
-       dev_priv->perf.ops.disable_metric_set(stream);
-       mutex_unlock(&dev_priv->drm.struct_mutex);
+       mutex_lock(&perf->i915->drm.struct_mutex);
+       perf->exclusive_stream = NULL;
+       perf->ops.disable_metric_set(stream);
+       mutex_unlock(&perf->i915->drm.struct_mutex);
 
        free_oa_buffer(stream);
 
-       intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL);
-       intel_runtime_pm_put(&dev_priv->runtime_pm, stream->wakeref);
+       intel_uncore_forcewake_put(stream->gt->uncore, FORCEWAKE_ALL);
+       intel_runtime_pm_put(stream->gt->uncore->rpm, stream->wakeref);
 
        if (stream->ctx)
                oa_put_render_ctx_id(stream);
 
-       put_oa_config(dev_priv, stream->oa_config);
+       put_oa_config(stream->oa_config);
 
-       if (dev_priv->perf.spurious_report_rs.missed) {
+       if (perf->spurious_report_rs.missed) {
                DRM_NOTE("%d spurious OA report notices suppressed due to ratelimiting\n",
-                        dev_priv->perf.spurious_report_rs.missed);
+                        perf->spurious_report_rs.missed);
        }
 }
 
 static void gen7_init_oa_buffer(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct intel_uncore *uncore = stream->gt->uncore;
        u32 gtt_offset = i915_ggtt_offset(stream->oa_buffer.vma);
        unsigned long flags;
 
@@ -1380,13 +1375,14 @@ static void gen7_init_oa_buffer(struct i915_perf_stream *stream)
        /* Pre-DevBDW: OABUFFER must be set with counters off,
         * before OASTATUS1, but after OASTATUS2
         */
-       I915_WRITE(GEN7_OASTATUS2,
-                  gtt_offset | GEN7_OASTATUS2_MEM_SELECT_GGTT); /* head */
+       intel_uncore_write(uncore, GEN7_OASTATUS2, /* head */
+                          gtt_offset | GEN7_OASTATUS2_MEM_SELECT_GGTT);
        stream->oa_buffer.head = gtt_offset;
 
-       I915_WRITE(GEN7_OABUFFER, gtt_offset);
+       intel_uncore_write(uncore, GEN7_OABUFFER, gtt_offset);
 
-       I915_WRITE(GEN7_OASTATUS1, gtt_offset | OABUFFER_SIZE_16M); /* tail */
+       intel_uncore_write(uncore, GEN7_OASTATUS1, /* tail */
+                          gtt_offset | OABUFFER_SIZE_16M);
 
        /* Mark that we need updated tail pointers to read from... */
        stream->oa_buffer.tails[0].offset = INVALID_TAIL_PTR;
@@ -1398,7 +1394,7 @@ static void gen7_init_oa_buffer(struct i915_perf_stream *stream)
         * already seen since they can't be cleared while periodic
         * sampling is enabled.
         */
-       dev_priv->perf.gen7_latched_oastatus1 = 0;
+       stream->perf->gen7_latched_oastatus1 = 0;
 
        /* NB: although the OA buffer will initially be allocated
         * zeroed via shmfs (and so this memset is redundant when
@@ -1421,17 +1417,17 @@ static void gen7_init_oa_buffer(struct i915_perf_stream *stream)
 
 static void gen8_init_oa_buffer(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct intel_uncore *uncore = stream->gt->uncore;
        u32 gtt_offset = i915_ggtt_offset(stream->oa_buffer.vma);
        unsigned long flags;
 
        spin_lock_irqsave(&stream->oa_buffer.ptr_lock, flags);
 
-       I915_WRITE(GEN8_OASTATUS, 0);
-       I915_WRITE(GEN8_OAHEADPTR, gtt_offset);
+       intel_uncore_write(uncore, GEN8_OASTATUS, 0);
+       intel_uncore_write(uncore, GEN8_OAHEADPTR, gtt_offset);
        stream->oa_buffer.head = gtt_offset;
 
-       I915_WRITE(GEN8_OABUFFER_UDW, 0);
+       intel_uncore_write(uncore, GEN8_OABUFFER_UDW, 0);
 
        /*
         * PRM says:
@@ -1441,9 +1437,9 @@ static void gen8_init_oa_buffer(struct i915_perf_stream *stream)
         *  to enable proper functionality of the overflow
         *  bit."
         */
-       I915_WRITE(GEN8_OABUFFER, gtt_offset |
+       intel_uncore_write(uncore, GEN8_OABUFFER, gtt_offset |
                   OABUFFER_SIZE_16M | GEN8_OABUFFER_MEM_SELECT_GGTT);
-       I915_WRITE(GEN8_OATAILPTR, gtt_offset & GEN8_OATAILPTR_MASK);
+       intel_uncore_write(uncore, GEN8_OATAILPTR, gtt_offset & GEN8_OATAILPTR_MASK);
 
        /* Mark that we need updated tail pointers to read from... */
        stream->oa_buffer.tails[0].offset = INVALID_TAIL_PTR;
@@ -1482,7 +1478,6 @@ static void gen8_init_oa_buffer(struct i915_perf_stream *stream)
 static int alloc_oa_buffer(struct i915_perf_stream *stream)
 {
        struct drm_i915_gem_object *bo;
-       struct drm_i915_private *dev_priv = stream->dev_priv;
        struct i915_vma *vma;
        int ret;
 
@@ -1492,7 +1487,7 @@ static int alloc_oa_buffer(struct i915_perf_stream *stream)
        BUILD_BUG_ON_NOT_POWER_OF_2(OA_BUFFER_SIZE);
        BUILD_BUG_ON(OA_BUFFER_SIZE < SZ_128K || OA_BUFFER_SIZE > SZ_16M);
 
-       bo = i915_gem_object_create_shmem(dev_priv, OA_BUFFER_SIZE);
+       bo = i915_gem_object_create_shmem(stream->perf->i915, OA_BUFFER_SIZE);
        if (IS_ERR(bo)) {
                DRM_ERROR("Failed to allocate OA buffer\n");
                return PTR_ERR(bo);
@@ -1533,7 +1528,7 @@ err_unref:
        return ret;
 }
 
-static void config_oa_regs(struct drm_i915_private *dev_priv,
+static void config_oa_regs(struct intel_uncore *uncore,
                           const struct i915_oa_reg *regs,
                           u32 n_regs)
 {
@@ -1542,7 +1537,7 @@ static void config_oa_regs(struct drm_i915_private *dev_priv,
        for (i = 0; i < n_regs; i++) {
                const struct i915_oa_reg *reg = regs + i;
 
-               I915_WRITE(reg->addr, reg->value);
+               intel_uncore_write(uncore, reg->addr, reg->value);
        }
 }
 
@@ -1575,7 +1570,7 @@ static void delay_after_mux(void)
 
 static int hsw_enable_metric_set(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct intel_uncore *uncore = stream->gt->uncore;
        const struct i915_oa_config *oa_config = stream->oa_config;
 
        /*
@@ -1588,15 +1583,15 @@ static int hsw_enable_metric_set(struct i915_perf_stream *stream)
         * count the events from non-render domain. Unit level clock
         * gating for RCS should also be disabled.
         */
-       I915_WRITE(GEN7_MISCCPCTL, (I915_READ(GEN7_MISCCPCTL) &
-                                   ~GEN7_DOP_CLOCK_GATE_ENABLE));
-       I915_WRITE(GEN6_UCGCTL1, (I915_READ(GEN6_UCGCTL1) |
-                                 GEN6_CSUNIT_CLOCK_GATE_DISABLE));
+       intel_uncore_rmw(uncore, GEN7_MISCCPCTL,
+                        GEN7_DOP_CLOCK_GATE_ENABLE, 0);
+       intel_uncore_rmw(uncore, GEN6_UCGCTL1,
+                        0, GEN6_CSUNIT_CLOCK_GATE_DISABLE);
 
-       config_oa_regs(dev_priv, oa_config->mux_regs, oa_config->mux_regs_len);
+       config_oa_regs(uncore, oa_config->mux_regs, oa_config->mux_regs_len);
        delay_after_mux();
 
-       config_oa_regs(dev_priv, oa_config->b_counter_regs,
+       config_oa_regs(uncore, oa_config->b_counter_regs,
                       oa_config->b_counter_regs_len);
 
        return 0;
@@ -1604,15 +1599,14 @@ static int hsw_enable_metric_set(struct i915_perf_stream *stream)
 
 static void hsw_disable_metric_set(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct intel_uncore *uncore = stream->gt->uncore;
 
-       I915_WRITE(GEN6_UCGCTL1, (I915_READ(GEN6_UCGCTL1) &
-                                 ~GEN6_CSUNIT_CLOCK_GATE_DISABLE));
-       I915_WRITE(GEN7_MISCCPCTL, (I915_READ(GEN7_MISCCPCTL) |
-                                   GEN7_DOP_CLOCK_GATE_ENABLE));
+       intel_uncore_rmw(uncore, GEN6_UCGCTL1,
+                        GEN6_CSUNIT_CLOCK_GATE_DISABLE, 0);
+       intel_uncore_rmw(uncore, GEN7_MISCCPCTL,
+                        0, GEN7_DOP_CLOCK_GATE_ENABLE);
 
-       I915_WRITE(GDT_CHICKEN_BITS, (I915_READ(GDT_CHICKEN_BITS) &
-                                     ~GT_NOA_ENABLE));
+       intel_uncore_rmw(uncore, GDT_CHICKEN_BITS, GT_NOA_ENABLE, 0);
 }
 
 static u32 oa_config_flex_reg(const struct i915_oa_config *oa_config,
@@ -1647,9 +1641,8 @@ static void
 gen8_update_reg_state_unlocked(const struct intel_context *ce,
                               const struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *i915 = ce->engine->i915;
-       u32 ctx_oactxctrl = i915->perf.ctx_oactxctrl_offset;
-       u32 ctx_flexeu0 = i915->perf.ctx_flexeu0_offset;
+       u32 ctx_oactxctrl = stream->perf->ctx_oactxctrl_offset;
+       u32 ctx_flexeu0 = stream->perf->ctx_flexeu0_offset;
        /* The MMIO offsets for Flex EU registers aren't contiguous */
        i915_reg_t flex_regs[] = {
                EU_PERF_CNTL0,
@@ -1672,7 +1665,8 @@ gen8_update_reg_state_unlocked(const struct intel_context *ce,
                reg_state[ctx_flexeu0 + i * 2 + 1] =
                        oa_config_flex_reg(stream->oa_config, flex_regs[i]);
 
-       reg_state[CTX_R_PWR_CLK_STATE] = intel_sseu_make_rpcs(i915, &ce->sseu);
+       reg_state[CTX_R_PWR_CLK_STATE] =
+               intel_sseu_make_rpcs(ce->engine->i915, &ce->sseu);
 }
 
 struct flex {
@@ -1827,9 +1821,9 @@ static int gen8_configure_context(struct i915_gem_context *ctx,
 static int gen8_configure_all_contexts(struct i915_perf_stream *stream,
                                       const struct i915_oa_config *oa_config)
 {
-       struct drm_i915_private *i915 = stream->dev_priv;
+       struct drm_i915_private *i915 = stream->perf->i915;
        /* The MMIO offsets for Flex EU registers aren't contiguous */
-       const u32 ctx_flexeu0 = i915->perf.ctx_flexeu0_offset;
+       const u32 ctx_flexeu0 = stream->perf->ctx_flexeu0_offset;
 #define ctx_flexeuN(N) (ctx_flexeu0 + 2 * (N) + 1)
        struct flex regs[] = {
                {
@@ -1838,7 +1832,7 @@ static int gen8_configure_all_contexts(struct i915_perf_stream *stream,
                },
                {
                        GEN8_OACTXCONTROL,
-                       i915->perf.ctx_oactxctrl_offset + 1,
+                       stream->perf->ctx_oactxctrl_offset + 1,
                        ((stream->period_exponent << GEN8_OA_TIMER_PERIOD_SHIFT) |
                         (stream->periodic ? GEN8_OA_TIMER_ENABLE : 0) |
                         GEN8_OA_COUNTER_RESUME)
@@ -1922,7 +1916,7 @@ static int gen8_configure_all_contexts(struct i915_perf_stream *stream,
 
 static int gen8_enable_metric_set(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct intel_uncore *uncore = stream->gt->uncore;
        const struct i915_oa_config *oa_config = stream->oa_config;
        int ret;
 
@@ -1949,10 +1943,10 @@ static int gen8_enable_metric_set(struct i915_perf_stream *stream)
         * be read back from automatically triggered reports, as part of the
         * RPT_ID field.
         */
-       if (IS_GEN_RANGE(dev_priv, 9, 11)) {
-               I915_WRITE(GEN8_OA_DEBUG,
-                          _MASKED_BIT_ENABLE(GEN9_OA_DEBUG_DISABLE_CLK_RATIO_REPORTS |
-                                             GEN9_OA_DEBUG_INCLUDE_CLK_RATIO));
+       if (IS_GEN_RANGE(stream->perf->i915, 9, 11)) {
+               intel_uncore_write(uncore, GEN8_OA_DEBUG,
+                                  _MASKED_BIT_ENABLE(GEN9_OA_DEBUG_DISABLE_CLK_RATIO_REPORTS |
+                                                     GEN9_OA_DEBUG_INCLUDE_CLK_RATIO));
        }
 
        /*
@@ -1964,10 +1958,10 @@ static int gen8_enable_metric_set(struct i915_perf_stream *stream)
        if (ret)
                return ret;
 
-       config_oa_regs(dev_priv, oa_config->mux_regs, oa_config->mux_regs_len);
+       config_oa_regs(uncore, oa_config->mux_regs, oa_config->mux_regs_len);
        delay_after_mux();
 
-       config_oa_regs(dev_priv, oa_config->b_counter_regs,
+       config_oa_regs(uncore, oa_config->b_counter_regs,
                       oa_config->b_counter_regs_len);
 
        return 0;
@@ -1975,30 +1969,28 @@ static int gen8_enable_metric_set(struct i915_perf_stream *stream)
 
 static void gen8_disable_metric_set(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct intel_uncore *uncore = stream->gt->uncore;
 
        /* Reset all contexts' slices/subslices configurations. */
        gen8_configure_all_contexts(stream, NULL);
 
-       I915_WRITE(GDT_CHICKEN_BITS, (I915_READ(GDT_CHICKEN_BITS) &
-                                     ~GT_NOA_ENABLE));
+       intel_uncore_rmw(uncore, GDT_CHICKEN_BITS, GT_NOA_ENABLE, 0);
 }
 
 static void gen10_disable_metric_set(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct intel_uncore *uncore = stream->gt->uncore;
 
        /* Reset all contexts' slices/subslices configurations. */
        gen8_configure_all_contexts(stream, NULL);
 
        /* Make sure we disable noa to save power. */
-       I915_WRITE(RPM_CONFIG1,
-                  I915_READ(RPM_CONFIG1) & ~GEN10_GT_NOA_ENABLE);
+       intel_uncore_rmw(uncore, RPM_CONFIG1, GEN10_GT_NOA_ENABLE, 0);
 }
 
 static void gen7_oa_enable(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct intel_uncore *uncore = stream->gt->uncore;
        struct i915_gem_context *ctx = stream->ctx;
        u32 ctx_id = stream->specific_ctx_id;
        bool periodic = stream->periodic;
@@ -2016,19 +2008,19 @@ static void gen7_oa_enable(struct i915_perf_stream *stream)
         */
        gen7_init_oa_buffer(stream);
 
-       I915_WRITE(GEN7_OACONTROL,
-                  (ctx_id & GEN7_OACONTROL_CTX_MASK) |
-                  (period_exponent <<
-                   GEN7_OACONTROL_TIMER_PERIOD_SHIFT) |
-                  (periodic ? GEN7_OACONTROL_TIMER_ENABLE : 0) |
-                  (report_format << GEN7_OACONTROL_FORMAT_SHIFT) |
-                  (ctx ? GEN7_OACONTROL_PER_CTX_ENABLE : 0) |
-                  GEN7_OACONTROL_ENABLE);
+       intel_uncore_write(uncore, GEN7_OACONTROL,
+                          (ctx_id & GEN7_OACONTROL_CTX_MASK) |
+                          (period_exponent <<
+                           GEN7_OACONTROL_TIMER_PERIOD_SHIFT) |
+                          (periodic ? GEN7_OACONTROL_TIMER_ENABLE : 0) |
+                          (report_format << GEN7_OACONTROL_FORMAT_SHIFT) |
+                          (ctx ? GEN7_OACONTROL_PER_CTX_ENABLE : 0) |
+                          GEN7_OACONTROL_ENABLE);
 }
 
 static void gen8_oa_enable(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct intel_uncore *uncore = stream->gt->uncore;
        u32 report_format = stream->oa_buffer.format;
 
        /*
@@ -2047,9 +2039,9 @@ static void gen8_oa_enable(struct i915_perf_stream *stream)
         * filtering and instead filter on the cpu based on the context-id
         * field of reports
         */
-       I915_WRITE(GEN8_OACONTROL, (report_format <<
-                                   GEN8_OA_REPORT_FORMAT_SHIFT) |
-                                  GEN8_OA_COUNTER_ENABLE);
+       intel_uncore_write(uncore, GEN8_OACONTROL,
+                          (report_format << GEN8_OA_REPORT_FORMAT_SHIFT) |
+                          GEN8_OA_COUNTER_ENABLE);
 }
 
 /**
@@ -2063,9 +2055,7 @@ static void gen8_oa_enable(struct i915_perf_stream *stream)
  */
 static void i915_oa_stream_enable(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
-
-       dev_priv->perf.ops.oa_enable(stream);
+       stream->perf->ops.oa_enable(stream);
 
        if (stream->periodic)
                hrtimer_start(&stream->poll_check_timer,
@@ -2075,7 +2065,7 @@ static void i915_oa_stream_enable(struct i915_perf_stream *stream)
 
 static void gen7_oa_disable(struct i915_perf_stream *stream)
 {
-       struct intel_uncore *uncore = &stream->dev_priv->uncore;
+       struct intel_uncore *uncore = stream->gt->uncore;
 
        intel_uncore_write(uncore, GEN7_OACONTROL, 0);
        if (intel_wait_for_register(uncore,
@@ -2086,7 +2076,7 @@ static void gen7_oa_disable(struct i915_perf_stream *stream)
 
 static void gen8_oa_disable(struct i915_perf_stream *stream)
 {
-       struct intel_uncore *uncore = &stream->dev_priv->uncore;
+       struct intel_uncore *uncore = stream->gt->uncore;
 
        intel_uncore_write(uncore, GEN8_OACONTROL, 0);
        if (intel_wait_for_register(uncore,
@@ -2105,9 +2095,7 @@ static void gen8_oa_disable(struct i915_perf_stream *stream)
  */
 static void i915_oa_stream_disable(struct i915_perf_stream *stream)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
-
-       dev_priv->perf.ops.oa_disable(stream);
+       stream->perf->ops.oa_disable(stream);
 
        if (stream->periodic)
                hrtimer_cancel(&stream->poll_check_timer);
@@ -2144,7 +2132,7 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
                               struct drm_i915_perf_open_param *param,
                               struct perf_open_properties *props)
 {
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct i915_perf *perf = stream->perf;
        int format_size;
        int ret;
 
@@ -2152,7 +2140,7 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
         * reason then don't let userspace try their luck with config
         * IDs
         */
-       if (!dev_priv->perf.metrics_kobj) {
+       if (!perf->metrics_kobj) {
                DRM_DEBUG("OA metrics weren't advertised via sysfs\n");
                return -EINVAL;
        }
@@ -2162,7 +2150,7 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
                return -EINVAL;
        }
 
-       if (!dev_priv->perf.ops.enable_metric_set) {
+       if (!perf->ops.enable_metric_set) {
                DRM_DEBUG("OA unit not supported\n");
                return -ENODEV;
        }
@@ -2171,7 +2159,7 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
         * counter reports and marshal to the appropriate client
         * we currently only allow exclusive access
         */
-       if (dev_priv->perf.exclusive_stream) {
+       if (perf->exclusive_stream) {
                DRM_DEBUG("OA unit already in use\n");
                return -EBUSY;
        }
@@ -2183,7 +2171,7 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
 
        stream->sample_size = sizeof(struct drm_i915_perf_record_header);
 
-       format_size = dev_priv->perf.oa_formats[props->oa_format].size;
+       format_size = perf->oa_formats[props->oa_format].size;
 
        stream->sample_flags |= SAMPLE_OA_REPORT;
        stream->sample_size += format_size;
@@ -2193,7 +2181,7 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
                return -EINVAL;
 
        stream->oa_buffer.format =
-               dev_priv->perf.oa_formats[props->oa_format].format;
+               perf->oa_formats[props->oa_format].format;
 
        stream->periodic = props->oa_periodic;
        if (stream->periodic)
@@ -2207,7 +2195,7 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
                }
        }
 
-       ret = get_oa_config(dev_priv, props->metrics_set, &stream->oa_config);
+       ret = get_oa_config(perf, props->metrics_set, &stream->oa_config);
        if (ret) {
                DRM_DEBUG("Invalid OA config id=%i\n", props->metrics_set);
                goto err_config;
@@ -2225,27 +2213,27 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
         *   In our case we are expecting that taking pm + FORCEWAKE
         *   references will effectively disable RC6.
         */
-       stream->wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
-       intel_uncore_forcewake_get(&dev_priv->uncore, FORCEWAKE_ALL);
+       stream->wakeref = intel_runtime_pm_get(stream->gt->uncore->rpm);
+       intel_uncore_forcewake_get(stream->gt->uncore, FORCEWAKE_ALL);
 
        ret = alloc_oa_buffer(stream);
        if (ret)
                goto err_oa_buf_alloc;
 
-       ret = i915_mutex_lock_interruptible(&dev_priv->drm);
+       ret = i915_mutex_lock_interruptible(&stream->perf->i915->drm);
        if (ret)
                goto err_lock;
 
        stream->ops = &i915_oa_stream_ops;
-       dev_priv->perf.exclusive_stream = stream;
+       perf->exclusive_stream = stream;
 
-       ret = dev_priv->perf.ops.enable_metric_set(stream);
+       ret = perf->ops.enable_metric_set(stream);
        if (ret) {
                DRM_DEBUG("Unable to enable metric set\n");
                goto err_enable;
        }
 
-       mutex_unlock(&dev_priv->drm.struct_mutex);
+       mutex_unlock(&stream->perf->i915->drm.struct_mutex);
 
        hrtimer_init(&stream->poll_check_timer,
                     CLOCK_MONOTONIC, HRTIMER_MODE_REL);
@@ -2256,18 +2244,18 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
        return 0;
 
 err_enable:
-       dev_priv->perf.exclusive_stream = NULL;
-       dev_priv->perf.ops.disable_metric_set(stream);
-       mutex_unlock(&dev_priv->drm.struct_mutex);
+       perf->exclusive_stream = NULL;
+       perf->ops.disable_metric_set(stream);
+       mutex_unlock(&stream->perf->i915->drm.struct_mutex);
 
 err_lock:
        free_oa_buffer(stream);
 
 err_oa_buf_alloc:
-       put_oa_config(dev_priv, stream->oa_config);
+       put_oa_config(stream->oa_config);
 
-       intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL);
-       intel_runtime_pm_put(&dev_priv->runtime_pm, stream->wakeref);
+       intel_uncore_forcewake_put(stream->gt->uncore, FORCEWAKE_ALL);
+       intel_runtime_pm_put(stream->gt->uncore->rpm, stream->wakeref);
 
 err_config:
        if (stream->ctx)
@@ -2359,7 +2347,7 @@ static ssize_t i915_perf_read(struct file *file,
                              loff_t *ppos)
 {
        struct i915_perf_stream *stream = file->private_data;
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct i915_perf *perf = stream->perf;
        ssize_t ret;
 
        /* To ensure it's handled consistently we simply treat all reads of a
@@ -2382,15 +2370,15 @@ static ssize_t i915_perf_read(struct file *file,
                        if (ret)
                                return ret;
 
-                       mutex_lock(&dev_priv->perf.lock);
+                       mutex_lock(&perf->lock);
                        ret = i915_perf_read_locked(stream, file,
                                                    buf, count, ppos);
-                       mutex_unlock(&dev_priv->perf.lock);
+                       mutex_unlock(&perf->lock);
                } while (ret == -EAGAIN);
        } else {
-               mutex_lock(&dev_priv->perf.lock);
+               mutex_lock(&perf->lock);
                ret = i915_perf_read_locked(stream, file, buf, count, ppos);
-               mutex_unlock(&dev_priv->perf.lock);
+               mutex_unlock(&perf->lock);
        }
 
        /* We allow the poll checking to sometimes report false positive EPOLLIN
@@ -2428,7 +2416,6 @@ static enum hrtimer_restart oa_poll_check_timer_cb(struct hrtimer *hrtimer)
 
 /**
  * i915_perf_poll_locked - poll_wait() with a suitable wait queue for stream
- * @dev_priv: i915 device instance
  * @stream: An i915 perf stream
  * @file: An i915 perf stream file
  * @wait: poll() state table
@@ -2437,15 +2424,14 @@ static enum hrtimer_restart oa_poll_check_timer_cb(struct hrtimer *hrtimer)
  * &i915_perf_stream_ops->poll_wait to call poll_wait() with a wait queue that
  * will be woken for new stream data.
  *
- * Note: The &drm_i915_private->perf.lock mutex has been taken to serialize
+ * Note: The &perf->lock mutex has been taken to serialize
  * with any non-file-operation driver hooks.
  *
  * Returns: any poll events that are ready without sleeping
  */
-static __poll_t i915_perf_poll_locked(struct drm_i915_private *dev_priv,
-                                         struct i915_perf_stream *stream,
-                                         struct file *file,
-                                         poll_table *wait)
+static __poll_t i915_perf_poll_locked(struct i915_perf_stream *stream,
+                                     struct file *file,
+                                     poll_table *wait)
 {
        __poll_t events = 0;
 
@@ -2479,12 +2465,12 @@ static __poll_t i915_perf_poll_locked(struct drm_i915_private *dev_priv,
 static __poll_t i915_perf_poll(struct file *file, poll_table *wait)
 {
        struct i915_perf_stream *stream = file->private_data;
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct i915_perf *perf = stream->perf;
        __poll_t ret;
 
-       mutex_lock(&dev_priv->perf.lock);
-       ret = i915_perf_poll_locked(dev_priv, stream, file, wait);
-       mutex_unlock(&dev_priv->perf.lock);
+       mutex_lock(&perf->lock);
+       ret = i915_perf_poll_locked(stream, file, wait);
+       mutex_unlock(&perf->lock);
 
        return ret;
 }
@@ -2543,7 +2529,7 @@ static void i915_perf_disable_locked(struct i915_perf_stream *stream)
  * @cmd: the ioctl request
  * @arg: the ioctl data
  *
- * Note: The &drm_i915_private->perf.lock mutex has been taken to serialize
+ * Note: The &perf->lock mutex has been taken to serialize
  * with any non-file-operation driver hooks.
  *
  * Returns: zero on success or a negative error code. Returns -EINVAL for
@@ -2581,12 +2567,12 @@ static long i915_perf_ioctl(struct file *file,
                            unsigned long arg)
 {
        struct i915_perf_stream *stream = file->private_data;
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct i915_perf *perf = stream->perf;
        long ret;
 
-       mutex_lock(&dev_priv->perf.lock);
+       mutex_lock(&perf->lock);
        ret = i915_perf_ioctl_locked(stream, cmd, arg);
-       mutex_unlock(&dev_priv->perf.lock);
+       mutex_unlock(&perf->lock);
 
        return ret;
 }
@@ -2598,7 +2584,7 @@ static long i915_perf_ioctl(struct file *file,
  * Frees all resources associated with the given i915 perf @stream, disabling
  * any associated data capture in the process.
  *
- * Note: The &drm_i915_private->perf.lock mutex has been taken to serialize
+ * Note: The &perf->lock mutex has been taken to serialize
  * with any non-file-operation driver hooks.
  */
 static void i915_perf_destroy_locked(struct i915_perf_stream *stream)
@@ -2631,14 +2617,14 @@ static void i915_perf_destroy_locked(struct i915_perf_stream *stream)
 static int i915_perf_release(struct inode *inode, struct file *file)
 {
        struct i915_perf_stream *stream = file->private_data;
-       struct drm_i915_private *dev_priv = stream->dev_priv;
+       struct i915_perf *perf = stream->perf;
 
-       mutex_lock(&dev_priv->perf.lock);
+       mutex_lock(&perf->lock);
        i915_perf_destroy_locked(stream);
-       mutex_unlock(&dev_priv->perf.lock);
+       mutex_unlock(&perf->lock);
 
        /* Release the reference the perf stream kept on the driver. */
-       drm_dev_put(&dev_priv->drm);
+       drm_dev_put(&perf->i915->drm);
 
        return 0;
 }
@@ -2660,7 +2646,7 @@ static const struct file_operations fops = {
 
 /**
  * i915_perf_open_ioctl_locked - DRM ioctl() for userspace to open a stream FD
- * @dev_priv: i915 device instance
+ * @perf: i915 perf instance
  * @param: The open parameters passed to 'DRM_I915_PERF_OPEN`
  * @props: individually validated u64 property value pairs
  * @file: drm file
@@ -2668,7 +2654,7 @@ static const struct file_operations fops = {
  * See i915_perf_ioctl_open() for interface details.
  *
  * Implements further stream config validation and stream initialization on
- * behalf of i915_perf_open_ioctl() with the &drm_i915_private->perf.lock mutex
+ * behalf of i915_perf_open_ioctl() with the &perf->lock mutex
  * taken to serialize with any non-file-operation driver hooks.
  *
  * Note: at this point the @props have only been validated in isolation and
@@ -2683,7 +2669,7 @@ static const struct file_operations fops = {
  * Returns: zero on success or a negative error code.
  */
 static int
-i915_perf_open_ioctl_locked(struct drm_i915_private *dev_priv,
+i915_perf_open_ioctl_locked(struct i915_perf *perf,
                            struct drm_i915_perf_open_param *param,
                            struct perf_open_properties *props,
                            struct drm_file *file)
@@ -2722,7 +2708,7 @@ i915_perf_open_ioctl_locked(struct drm_i915_private *dev_priv,
         * MI_REPORT_PERF_COUNT commands and so consider it a privileged op to
         * enable the OA unit by default.
         */
-       if (IS_HASWELL(dev_priv) && specific_ctx)
+       if (IS_HASWELL(perf->i915) && specific_ctx)
                privileged_op = false;
 
        /* Similar to perf's kernel.perf_paranoid_cpu sysctl option
@@ -2743,7 +2729,8 @@ i915_perf_open_ioctl_locked(struct drm_i915_private *dev_priv,
                goto err_ctx;
        }
 
-       stream->dev_priv = dev_priv;
+       stream->perf = perf;
+       stream->gt = &perf->i915->gt;
        stream->ctx = specific_ctx;
 
        ret = i915_oa_stream_init(stream, param, props);
@@ -2759,7 +2746,7 @@ i915_perf_open_ioctl_locked(struct drm_i915_private *dev_priv,
                goto err_flags;
        }
 
-       list_add(&stream->link, &dev_priv->perf.streams);
+       list_add(&stream->link, &perf->streams);
 
        if (param->flags & I915_PERF_FLAG_FD_CLOEXEC)
                f_flags |= O_CLOEXEC;
@@ -2778,7 +2765,7 @@ i915_perf_open_ioctl_locked(struct drm_i915_private *dev_priv,
        /* Take a reference on the driver that will be kept with stream_fd
         * until its release.
         */
-       drm_dev_get(&dev_priv->drm);
+       drm_dev_get(&perf->i915->drm);
 
        return stream_fd;
 
@@ -2796,15 +2783,15 @@ err:
        return ret;
 }
 
-static u64 oa_exponent_to_ns(struct drm_i915_private *dev_priv, int exponent)
+static u64 oa_exponent_to_ns(struct i915_perf *perf, int exponent)
 {
        return div64_u64(1000000000ULL * (2ULL << exponent),
-                        1000ULL * RUNTIME_INFO(dev_priv)->cs_timestamp_frequency_khz);
+                        1000ULL * RUNTIME_INFO(perf->i915)->cs_timestamp_frequency_khz);
 }
 
 /**
  * read_properties_unlocked - validate + copy userspace stream open properties
- * @dev_priv: i915 device instance
+ * @perf: i915 perf instance
  * @uprops: The array of u64 key value pairs given by userspace
  * @n_props: The number of key value pairs expected in @uprops
  * @props: The stream configuration built up while validating properties
@@ -2817,7 +2804,7 @@ static u64 oa_exponent_to_ns(struct drm_i915_private *dev_priv, int exponent)
  * we shouldn't validate or assume anything about ordering here. This doesn't
  * rule out defining new properties with ordering requirements in the future.
  */
-static int read_properties_unlocked(struct drm_i915_private *dev_priv,
+static int read_properties_unlocked(struct i915_perf *perf,
                                    u64 __user *uprops,
                                    u32 n_props,
                                    struct perf_open_properties *props)
@@ -2883,7 +2870,7 @@ static int read_properties_unlocked(struct drm_i915_private *dev_priv,
                                          value);
                                return -EINVAL;
                        }
-                       if (!dev_priv->perf.oa_formats[value].size) {
+                       if (!perf->oa_formats[value].size) {
                                DRM_DEBUG("Unsupported OA report format %llu\n",
                                          value);
                                return -EINVAL;
@@ -2904,7 +2891,7 @@ static int read_properties_unlocked(struct drm_i915_private *dev_priv,
                         */
 
                        BUILD_BUG_ON(sizeof(oa_period) != 8);
-                       oa_period = oa_exponent_to_ns(dev_priv, value);
+                       oa_period = oa_exponent_to_ns(perf, value);
 
                        /* This check is primarily to ensure that oa_period <=
                         * UINT32_MAX (before passing to do_div which only
@@ -2958,7 +2945,7 @@ static int read_properties_unlocked(struct drm_i915_private *dev_priv,
  * mutex to avoid an awkward lockdep with mmap_sem.
  *
  * Most of the implementation details are handled by
- * i915_perf_open_ioctl_locked() after taking the &drm_i915_private->perf.lock
+ * i915_perf_open_ioctl_locked() after taking the &perf->lock
  * mutex for serializing with any non-file-operation driver hooks.
  *
  * Return: A newly opened i915 Perf stream file descriptor or negative
@@ -2967,13 +2954,13 @@ static int read_properties_unlocked(struct drm_i915_private *dev_priv,
 int i915_perf_open_ioctl(struct drm_device *dev, void *data,
                         struct drm_file *file)
 {
-       struct drm_i915_private *dev_priv = dev->dev_private;
+       struct i915_perf *perf = &to_i915(dev)->perf;
        struct drm_i915_perf_open_param *param = data;
        struct perf_open_properties props;
        u32 known_open_flags;
        int ret;
 
-       if (!dev_priv->perf.initialized) {
+       if (!perf->i915) {
                DRM_DEBUG("i915 perf interface not available for this system\n");
                return -ENOTSUPP;
        }
@@ -2986,124 +2973,127 @@ int i915_perf_open_ioctl(struct drm_device *dev, void *data,
                return -EINVAL;
        }
 
-       ret = read_properties_unlocked(dev_priv,
+       ret = read_properties_unlocked(perf,
                                       u64_to_user_ptr(param->properties_ptr),
                                       param->num_properties,
                                       &props);
        if (ret)
                return ret;
 
-       mutex_lock(&dev_priv->perf.lock);
-       ret = i915_perf_open_ioctl_locked(dev_priv, param, &props, file);
-       mutex_unlock(&dev_priv->perf.lock);
+       mutex_lock(&perf->lock);
+       ret = i915_perf_open_ioctl_locked(perf, param, &props, file);
+       mutex_unlock(&perf->lock);
 
        return ret;
 }
 
 /**
  * i915_perf_register - exposes i915-perf to userspace
- * @dev_priv: i915 device instance
+ * @i915: i915 device instance
  *
  * In particular OA metric sets are advertised under a sysfs metrics/
  * directory allowing userspace to enumerate valid IDs that can be
  * used to open an i915-perf stream.
  */
-void i915_perf_register(struct drm_i915_private *dev_priv)
+void i915_perf_register(struct drm_i915_private *i915)
 {
+       struct i915_perf *perf = &i915->perf;
        int ret;
 
-       if (!dev_priv->perf.initialized)
+       if (!perf->i915)
                return;
 
        /* To be sure we're synchronized with an attempted
         * i915_perf_open_ioctl(); considering that we register after
         * being exposed to userspace.
         */
-       mutex_lock(&dev_priv->perf.lock);
+       mutex_lock(&perf->lock);
 
-       dev_priv->perf.metrics_kobj =
+       perf->metrics_kobj =
                kobject_create_and_add("metrics",
-                                      &dev_priv->drm.primary->kdev->kobj);
-       if (!dev_priv->perf.metrics_kobj)
+                                      &i915->drm.primary->kdev->kobj);
+       if (!perf->metrics_kobj)
                goto exit;
 
-       sysfs_attr_init(&dev_priv->perf.test_config.sysfs_metric_id.attr);
-
-       if (INTEL_GEN(dev_priv) >= 11) {
-               i915_perf_load_test_config_icl(dev_priv);
-       } else if (IS_CANNONLAKE(dev_priv)) {
-               i915_perf_load_test_config_cnl(dev_priv);
-       } else if (IS_COFFEELAKE(dev_priv)) {
-               if (IS_CFL_GT2(dev_priv))
-                       i915_perf_load_test_config_cflgt2(dev_priv);
-               if (IS_CFL_GT3(dev_priv))
-                       i915_perf_load_test_config_cflgt3(dev_priv);
-       } else if (IS_GEMINILAKE(dev_priv)) {
-               i915_perf_load_test_config_glk(dev_priv);
-       } else if (IS_KABYLAKE(dev_priv)) {
-               if (IS_KBL_GT2(dev_priv))
-                       i915_perf_load_test_config_kblgt2(dev_priv);
-               else if (IS_KBL_GT3(dev_priv))
-                       i915_perf_load_test_config_kblgt3(dev_priv);
-       } else if (IS_BROXTON(dev_priv)) {
-               i915_perf_load_test_config_bxt(dev_priv);
-       } else if (IS_SKYLAKE(dev_priv)) {
-               if (IS_SKL_GT2(dev_priv))
-                       i915_perf_load_test_config_sklgt2(dev_priv);
-               else if (IS_SKL_GT3(dev_priv))
-                       i915_perf_load_test_config_sklgt3(dev_priv);
-               else if (IS_SKL_GT4(dev_priv))
-                       i915_perf_load_test_config_sklgt4(dev_priv);
-       } else if (IS_CHERRYVIEW(dev_priv)) {
-               i915_perf_load_test_config_chv(dev_priv);
-       } else if (IS_BROADWELL(dev_priv)) {
-               i915_perf_load_test_config_bdw(dev_priv);
-       } else if (IS_HASWELL(dev_priv)) {
-               i915_perf_load_test_config_hsw(dev_priv);
-}
-
-       if (dev_priv->perf.test_config.id == 0)
+       sysfs_attr_init(&perf->test_config.sysfs_metric_id.attr);
+
+       if (INTEL_GEN(i915) >= 11) {
+               i915_perf_load_test_config_icl(i915);
+       } else if (IS_CANNONLAKE(i915)) {
+               i915_perf_load_test_config_cnl(i915);
+       } else if (IS_COFFEELAKE(i915)) {
+               if (IS_CFL_GT2(i915))
+                       i915_perf_load_test_config_cflgt2(i915);
+               if (IS_CFL_GT3(i915))
+                       i915_perf_load_test_config_cflgt3(i915);
+       } else if (IS_GEMINILAKE(i915)) {
+               i915_perf_load_test_config_glk(i915);
+       } else if (IS_KABYLAKE(i915)) {
+               if (IS_KBL_GT2(i915))
+                       i915_perf_load_test_config_kblgt2(i915);
+               else if (IS_KBL_GT3(i915))
+                       i915_perf_load_test_config_kblgt3(i915);
+       } else if (IS_BROXTON(i915)) {
+               i915_perf_load_test_config_bxt(i915);
+       } else if (IS_SKYLAKE(i915)) {
+               if (IS_SKL_GT2(i915))
+                       i915_perf_load_test_config_sklgt2(i915);
+               else if (IS_SKL_GT3(i915))
+                       i915_perf_load_test_config_sklgt3(i915);
+               else if (IS_SKL_GT4(i915))
+                       i915_perf_load_test_config_sklgt4(i915);
+       } else if (IS_CHERRYVIEW(i915)) {
+               i915_perf_load_test_config_chv(i915);
+       } else if (IS_BROADWELL(i915)) {
+               i915_perf_load_test_config_bdw(i915);
+       } else if (IS_HASWELL(i915)) {
+               i915_perf_load_test_config_hsw(i915);
+       }
+
+       if (perf->test_config.id == 0)
                goto sysfs_error;
 
-       ret = sysfs_create_group(dev_priv->perf.metrics_kobj,
-                                &dev_priv->perf.test_config.sysfs_metric);
+       ret = sysfs_create_group(perf->metrics_kobj,
+                                &perf->test_config.sysfs_metric);
        if (ret)
                goto sysfs_error;
 
-       atomic_set(&dev_priv->perf.test_config.ref_count, 1);
+       atomic_set(&perf->test_config.ref_count, 1);
 
        goto exit;
 
 sysfs_error:
-       kobject_put(dev_priv->perf.metrics_kobj);
-       dev_priv->perf.metrics_kobj = NULL;
+       kobject_put(perf->metrics_kobj);
+       perf->metrics_kobj = NULL;
 
 exit:
-       mutex_unlock(&dev_priv->perf.lock);
+       mutex_unlock(&perf->lock);
 }
 
 /**
  * i915_perf_unregister - hide i915-perf from userspace
- * @dev_priv: i915 device instance
+ * @i915: i915 device instance
  *
  * i915-perf state cleanup is split up into an 'unregister' and
  * 'deinit' phase where the interface is first hidden from
  * userspace by i915_perf_unregister() before cleaning up
  * remaining state in i915_perf_fini().
  */
-void i915_perf_unregister(struct drm_i915_private *dev_priv)
+void i915_perf_unregister(struct drm_i915_private *i915)
 {
-       if (!dev_priv->perf.metrics_kobj)
+       struct i915_perf *perf = &i915->perf;
+
+       if (!perf->metrics_kobj)
                return;
 
-       sysfs_remove_group(dev_priv->perf.metrics_kobj,
-                          &dev_priv->perf.test_config.sysfs_metric);
+       sysfs_remove_group(perf->metrics_kobj,
+                          &perf->test_config.sysfs_metric);
 
-       kobject_put(dev_priv->perf.metrics_kobj);
-       dev_priv->perf.metrics_kobj = NULL;
+       kobject_put(perf->metrics_kobj);
+       perf->metrics_kobj = NULL;
 }
 
-static bool gen8_is_valid_flex_addr(struct drm_i915_private *dev_priv, u32 addr)
+static bool gen8_is_valid_flex_addr(struct i915_perf *perf, u32 addr)
 {
        static const i915_reg_t flex_eu_regs[] = {
                EU_PERF_CNTL0,
@@ -3123,7 +3113,7 @@ static bool gen8_is_valid_flex_addr(struct drm_i915_private *dev_priv, u32 addr)
        return false;
 }
 
-static bool gen7_is_valid_b_counter_addr(struct drm_i915_private *dev_priv, u32 addr)
+static bool gen7_is_valid_b_counter_addr(struct i915_perf *perf, u32 addr)
 {
        return (addr >= i915_mmio_reg_offset(OASTARTTRIG1) &&
                addr <= i915_mmio_reg_offset(OASTARTTRIG8)) ||
@@ -3133,7 +3123,7 @@ static bool gen7_is_valid_b_counter_addr(struct drm_i915_private *dev_priv, u32
                 addr <= i915_mmio_reg_offset(OACEC7_1));
 }
 
-static bool gen7_is_valid_mux_addr(struct drm_i915_private *dev_priv, u32 addr)
+static bool gen7_is_valid_mux_addr(struct i915_perf *perf, u32 addr)
 {
        return addr == i915_mmio_reg_offset(HALF_SLICE_CHICKEN2) ||
                (addr >= i915_mmio_reg_offset(MICRO_BP0_0) &&
@@ -3144,34 +3134,34 @@ static bool gen7_is_valid_mux_addr(struct drm_i915_private *dev_priv, u32 addr)
                 addr <= i915_mmio_reg_offset(OA_PERFMATRIX_HI));
 }
 
-static bool gen8_is_valid_mux_addr(struct drm_i915_private *dev_priv, u32 addr)
+static bool gen8_is_valid_mux_addr(struct i915_perf *perf, u32 addr)
 {
-       return gen7_is_valid_mux_addr(dev_priv, addr) ||
+       return gen7_is_valid_mux_addr(perf, addr) ||
                addr == i915_mmio_reg_offset(WAIT_FOR_RC6_EXIT) ||
                (addr >= i915_mmio_reg_offset(RPM_CONFIG0) &&
                 addr <= i915_mmio_reg_offset(NOA_CONFIG(8)));
 }
 
-static bool gen10_is_valid_mux_addr(struct drm_i915_private *dev_priv, u32 addr)
+static bool gen10_is_valid_mux_addr(struct i915_perf *perf, u32 addr)
 {
-       return gen8_is_valid_mux_addr(dev_priv, addr) ||
+       return gen8_is_valid_mux_addr(perf, addr) ||
                addr == i915_mmio_reg_offset(GEN10_NOA_WRITE_HIGH) ||
                (addr >= i915_mmio_reg_offset(OA_PERFCNT3_LO) &&
                 addr <= i915_mmio_reg_offset(OA_PERFCNT4_HI));
 }
 
-static bool hsw_is_valid_mux_addr(struct drm_i915_private *dev_priv, u32 addr)
+static bool hsw_is_valid_mux_addr(struct i915_perf *perf, u32 addr)
 {
-       return gen7_is_valid_mux_addr(dev_priv, addr) ||
+       return gen7_is_valid_mux_addr(perf, addr) ||
                (addr >= 0x25100 && addr <= 0x2FF90) ||
                (addr >= i915_mmio_reg_offset(HSW_MBVID2_NOA0) &&
                 addr <= i915_mmio_reg_offset(HSW_MBVID2_NOA9)) ||
                addr == i915_mmio_reg_offset(HSW_MBVID2_MISR0);
 }
 
-static bool chv_is_valid_mux_addr(struct drm_i915_private *dev_priv, u32 addr)
+static bool chv_is_valid_mux_addr(struct i915_perf *perf, u32 addr)
 {
-       return gen7_is_valid_mux_addr(dev_priv, addr) ||
+       return gen7_is_valid_mux_addr(perf, addr) ||
                (addr >= 0x182300 && addr <= 0x1823A4);
 }
 
@@ -3194,8 +3184,8 @@ static u32 mask_reg_value(u32 reg, u32 val)
        return val;
 }
 
-static struct i915_oa_reg *alloc_oa_regs(struct drm_i915_private *dev_priv,
-                                        bool (*is_valid)(struct drm_i915_private *dev_priv, u32 addr),
+static struct i915_oa_reg *alloc_oa_regs(struct i915_perf *perf,
+                                        bool (*is_valid)(struct i915_perf *perf, u32 addr),
                                         u32 __user *regs,
                                         u32 n_regs)
 {
@@ -3225,7 +3215,7 @@ static struct i915_oa_reg *alloc_oa_regs(struct drm_i915_private *dev_priv,
                if (err)
                        goto addr_err;
 
-               if (!is_valid(dev_priv, addr)) {
+               if (!is_valid(perf, addr)) {
                        DRM_DEBUG("Invalid oa_reg address: %X\n", addr);
                        err = -EINVAL;
                        goto addr_err;
@@ -3258,7 +3248,7 @@ static ssize_t show_dynamic_id(struct device *dev,
        return sprintf(buf, "%d\n", oa_config->id);
 }
 
-static int create_dynamic_oa_sysfs_entry(struct drm_i915_private *dev_priv,
+static int create_dynamic_oa_sysfs_entry(struct i915_perf *perf,
                                         struct i915_oa_config *oa_config)
 {
        sysfs_attr_init(&oa_config->sysfs_metric_id.attr);
@@ -3273,7 +3263,7 @@ static int create_dynamic_oa_sysfs_entry(struct drm_i915_private *dev_priv,
        oa_config->sysfs_metric.name = oa_config->uuid;
        oa_config->sysfs_metric.attrs = oa_config->attrs;
 
-       return sysfs_create_group(dev_priv->perf.metrics_kobj,
+       return sysfs_create_group(perf->metrics_kobj,
                                  &oa_config->sysfs_metric);
 }
 
@@ -3293,17 +3283,17 @@ static int create_dynamic_oa_sysfs_entry(struct drm_i915_private *dev_priv,
 int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
                               struct drm_file *file)
 {
-       struct drm_i915_private *dev_priv = dev->dev_private;
+       struct i915_perf *perf = &to_i915(dev)->perf;
        struct drm_i915_perf_oa_config *args = data;
        struct i915_oa_config *oa_config, *tmp;
        int err, id;
 
-       if (!dev_priv->perf.initialized) {
+       if (!perf->i915) {
                DRM_DEBUG("i915 perf interface not available for this system\n");
                return -ENOTSUPP;
        }
 
-       if (!dev_priv->perf.metrics_kobj) {
+       if (!perf->metrics_kobj) {
                DRM_DEBUG("OA metrics weren't advertised via sysfs\n");
                return -EINVAL;
        }
@@ -3341,8 +3331,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
 
        oa_config->mux_regs_len = args->n_mux_regs;
        oa_config->mux_regs =
-               alloc_oa_regs(dev_priv,
-                             dev_priv->perf.ops.is_valid_mux_reg,
+               alloc_oa_regs(perf,
+                             perf->ops.is_valid_mux_reg,
                              u64_to_user_ptr(args->mux_regs_ptr),
                              args->n_mux_regs);
 
@@ -3354,8 +3344,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
 
        oa_config->b_counter_regs_len = args->n_boolean_regs;
        oa_config->b_counter_regs =
-               alloc_oa_regs(dev_priv,
-                             dev_priv->perf.ops.is_valid_b_counter_reg,
+               alloc_oa_regs(perf,
+                             perf->ops.is_valid_b_counter_reg,
                              u64_to_user_ptr(args->boolean_regs_ptr),
                              args->n_boolean_regs);
 
@@ -3365,7 +3355,7 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
                goto reg_err;
        }
 
-       if (INTEL_GEN(dev_priv) < 8) {
+       if (INTEL_GEN(perf->i915) < 8) {
                if (args->n_flex_regs != 0) {
                        err = -EINVAL;
                        goto reg_err;
@@ -3373,8 +3363,8 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
        } else {
                oa_config->flex_regs_len = args->n_flex_regs;
                oa_config->flex_regs =
-                       alloc_oa_regs(dev_priv,
-                                     dev_priv->perf.ops.is_valid_flex_reg,
+                       alloc_oa_regs(perf,
+                                     perf->ops.is_valid_flex_reg,
                                      u64_to_user_ptr(args->flex_regs_ptr),
                                      args->n_flex_regs);
 
@@ -3385,14 +3375,14 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
                }
        }
 
-       err = mutex_lock_interruptible(&dev_priv->perf.metrics_lock);
+       err = mutex_lock_interruptible(&perf->metrics_lock);
        if (err)
                goto reg_err;
 
        /* We shouldn't have too many configs, so this iteration shouldn't be
         * too costly.
         */
-       idr_for_each_entry(&dev_priv->perf.metrics_idr, tmp, id) {
+       idr_for_each_entry(&perf->metrics_idr, tmp, id) {
                if (!strcmp(tmp->uuid, oa_config->uuid)) {
                        DRM_DEBUG("OA config already exists with this uuid\n");
                        err = -EADDRINUSE;
@@ -3400,14 +3390,14 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
                }
        }
 
-       err = create_dynamic_oa_sysfs_entry(dev_priv, oa_config);
+       err = create_dynamic_oa_sysfs_entry(perf, oa_config);
        if (err) {
                DRM_DEBUG("Failed to create sysfs entry for OA config\n");
                goto sysfs_err;
        }
 
        /* Config id 0 is invalid, id 1 for kernel stored test config. */
-       oa_config->id = idr_alloc(&dev_priv->perf.metrics_idr,
+       oa_config->id = idr_alloc(&perf->metrics_idr,
                                  oa_config, 2,
                                  0, GFP_KERNEL);
        if (oa_config->id < 0) {
@@ -3416,16 +3406,16 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data,
                goto sysfs_err;
        }
 
-       mutex_unlock(&dev_priv->perf.metrics_lock);
+       mutex_unlock(&perf->metrics_lock);
 
        DRM_DEBUG("Added config %s id=%i\n", oa_config->uuid, oa_config->id);
 
        return oa_config->id;
 
 sysfs_err:
-       mutex_unlock(&dev_priv->perf.metrics_lock);
+       mutex_unlock(&perf->metrics_lock);
 reg_err:
-       put_oa_config(dev_priv, oa_config);
+       put_oa_config(oa_config);
        DRM_DEBUG("Failed to add new OA config\n");
        return err;
 }
@@ -3444,12 +3434,12 @@ reg_err:
 int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,
                                  struct drm_file *file)
 {
-       struct drm_i915_private *dev_priv = dev->dev_private;
+       struct i915_perf *perf = &to_i915(dev)->perf;
        u64 *arg = data;
        struct i915_oa_config *oa_config;
        int ret;
 
-       if (!dev_priv->perf.initialized) {
+       if (!perf->i915) {
                DRM_DEBUG("i915 perf interface not available for this system\n");
                return -ENOTSUPP;
        }
@@ -3459,11 +3449,11 @@ int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,
                return -EACCES;
        }
 
-       ret = mutex_lock_interruptible(&dev_priv->perf.metrics_lock);
+       ret = mutex_lock_interruptible(&perf->metrics_lock);
        if (ret)
                goto lock_err;
 
-       oa_config = idr_find(&dev_priv->perf.metrics_idr, *arg);
+       oa_config = idr_find(&perf->metrics_idr, *arg);
        if (!oa_config) {
                DRM_DEBUG("Failed to remove unknown OA config\n");
                ret = -ENOENT;
@@ -3472,17 +3462,17 @@ int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,
 
        GEM_BUG_ON(*arg != oa_config->id);
 
-       sysfs_remove_group(dev_priv->perf.metrics_kobj,
+       sysfs_remove_group(perf->metrics_kobj,
                           &oa_config->sysfs_metric);
 
-       idr_remove(&dev_priv->perf.metrics_idr, *arg);
+       idr_remove(&perf->metrics_idr, *arg);
 
        DRM_DEBUG("Removed config %s id=%i\n", oa_config->uuid, oa_config->id);
 
-       put_oa_config(dev_priv, oa_config);
+       put_oa_config(oa_config);
 
 config_err:
-       mutex_unlock(&dev_priv->perf.metrics_lock);
+       mutex_unlock(&perf->metrics_lock);
 lock_err:
        return ret;
 }
@@ -3531,103 +3521,104 @@ static struct ctl_table dev_root[] = {
 
 /**
  * i915_perf_init - initialize i915-perf state on module load
- * @dev_priv: i915 device instance
+ * @i915: i915 device instance
  *
  * Initializes i915-perf state without exposing anything to userspace.
  *
  * Note: i915-perf initialization is split into an 'init' and 'register'
  * phase with the i915_perf_register() exposing state to userspace.
  */
-void i915_perf_init(struct drm_i915_private *dev_priv)
-{
-       if (IS_HASWELL(dev_priv)) {
-               dev_priv->perf.ops.is_valid_b_counter_reg =
-                       gen7_is_valid_b_counter_addr;
-               dev_priv->perf.ops.is_valid_mux_reg =
-                       hsw_is_valid_mux_addr;
-               dev_priv->perf.ops.is_valid_flex_reg = NULL;
-               dev_priv->perf.ops.enable_metric_set = hsw_enable_metric_set;
-               dev_priv->perf.ops.disable_metric_set = hsw_disable_metric_set;
-               dev_priv->perf.ops.oa_enable = gen7_oa_enable;
-               dev_priv->perf.ops.oa_disable = gen7_oa_disable;
-               dev_priv->perf.ops.read = gen7_oa_read;
-               dev_priv->perf.ops.oa_hw_tail_read =
-                       gen7_oa_hw_tail_read;
-
-               dev_priv->perf.oa_formats = hsw_oa_formats;
-       } else if (HAS_LOGICAL_RING_CONTEXTS(dev_priv)) {
+void i915_perf_init(struct drm_i915_private *i915)
+{
+       struct i915_perf *perf = &i915->perf;
+
+       /* XXX const struct i915_perf_ops! */
+
+       if (IS_HASWELL(i915)) {
+               perf->ops.is_valid_b_counter_reg = gen7_is_valid_b_counter_addr;
+               perf->ops.is_valid_mux_reg = hsw_is_valid_mux_addr;
+               perf->ops.is_valid_flex_reg = NULL;
+               perf->ops.enable_metric_set = hsw_enable_metric_set;
+               perf->ops.disable_metric_set = hsw_disable_metric_set;
+               perf->ops.oa_enable = gen7_oa_enable;
+               perf->ops.oa_disable = gen7_oa_disable;
+               perf->ops.read = gen7_oa_read;
+               perf->ops.oa_hw_tail_read = gen7_oa_hw_tail_read;
+
+               perf->oa_formats = hsw_oa_formats;
+       } else if (HAS_LOGICAL_RING_CONTEXTS(i915)) {
                /* Note: that although we could theoretically also support the
                 * legacy ringbuffer mode on BDW (and earlier iterations of
                 * this driver, before upstreaming did this) it didn't seem
                 * worth the complexity to maintain now that BDW+ enable
                 * execlist mode by default.
                 */
-               dev_priv->perf.oa_formats = gen8_plus_oa_formats;
+               perf->oa_formats = gen8_plus_oa_formats;
 
-               dev_priv->perf.ops.oa_enable = gen8_oa_enable;
-               dev_priv->perf.ops.oa_disable = gen8_oa_disable;
-               dev_priv->perf.ops.read = gen8_oa_read;
-               dev_priv->perf.ops.oa_hw_tail_read = gen8_oa_hw_tail_read;
+               perf->ops.oa_enable = gen8_oa_enable;
+               perf->ops.oa_disable = gen8_oa_disable;
+               perf->ops.read = gen8_oa_read;
+               perf->ops.oa_hw_tail_read = gen8_oa_hw_tail_read;
 
-               if (IS_GEN_RANGE(dev_priv, 8, 9)) {
-                       dev_priv->perf.ops.is_valid_b_counter_reg =
+               if (IS_GEN_RANGE(i915, 8, 9)) {
+                       perf->ops.is_valid_b_counter_reg =
                                gen7_is_valid_b_counter_addr;
-                       dev_priv->perf.ops.is_valid_mux_reg =
+                       perf->ops.is_valid_mux_reg =
                                gen8_is_valid_mux_addr;
-                       dev_priv->perf.ops.is_valid_flex_reg =
+                       perf->ops.is_valid_flex_reg =
                                gen8_is_valid_flex_addr;
 
-                       if (IS_CHERRYVIEW(dev_priv)) {
-                               dev_priv->perf.ops.is_valid_mux_reg =
+                       if (IS_CHERRYVIEW(i915)) {
+                               perf->ops.is_valid_mux_reg =
                                        chv_is_valid_mux_addr;
                        }
 
-                       dev_priv->perf.ops.enable_metric_set = gen8_enable_metric_set;
-                       dev_priv->perf.ops.disable_metric_set = gen8_disable_metric_set;
+                       perf->ops.enable_metric_set = gen8_enable_metric_set;
+                       perf->ops.disable_metric_set = gen8_disable_metric_set;
 
-                       if (IS_GEN(dev_priv, 8)) {
-                               dev_priv->perf.ctx_oactxctrl_offset = 0x120;
-                               dev_priv->perf.ctx_flexeu0_offset = 0x2ce;
+                       if (IS_GEN(i915, 8)) {
+                               perf->ctx_oactxctrl_offset = 0x120;
+                               perf->ctx_flexeu0_offset = 0x2ce;
 
-                               dev_priv->perf.gen8_valid_ctx_bit = BIT(25);
+                               perf->gen8_valid_ctx_bit = BIT(25);
                        } else {
-                               dev_priv->perf.ctx_oactxctrl_offset = 0x128;
-                               dev_priv->perf.ctx_flexeu0_offset = 0x3de;
+                               perf->ctx_oactxctrl_offset = 0x128;
+                               perf->ctx_flexeu0_offset = 0x3de;
 
-                               dev_priv->perf.gen8_valid_ctx_bit = BIT(16);
+                               perf->gen8_valid_ctx_bit = BIT(16);
                        }
-               } else if (IS_GEN_RANGE(dev_priv, 10, 11)) {
-                       dev_priv->perf.ops.is_valid_b_counter_reg =
+               } else if (IS_GEN_RANGE(i915, 10, 11)) {
+                       perf->ops.is_valid_b_counter_reg =
                                gen7_is_valid_b_counter_addr;
-                       dev_priv->perf.ops.is_valid_mux_reg =
+                       perf->ops.is_valid_mux_reg =
                                gen10_is_valid_mux_addr;
-                       dev_priv->perf.ops.is_valid_flex_reg =
+                       perf->ops.is_valid_flex_reg =
                                gen8_is_valid_flex_addr;
 
-                       dev_priv->perf.ops.enable_metric_set = gen8_enable_metric_set;
-                       dev_priv->perf.ops.disable_metric_set = gen10_disable_metric_set;
+                       perf->ops.enable_metric_set = gen8_enable_metric_set;
+                       perf->ops.disable_metric_set = gen10_disable_metric_set;
 
-                       if (IS_GEN(dev_priv, 10)) {
-                               dev_priv->perf.ctx_oactxctrl_offset = 0x128;
-                               dev_priv->perf.ctx_flexeu0_offset = 0x3de;
+                       if (IS_GEN(i915, 10)) {
+                               perf->ctx_oactxctrl_offset = 0x128;
+                               perf->ctx_flexeu0_offset = 0x3de;
                        } else {
-                               dev_priv->perf.ctx_oactxctrl_offset = 0x124;
-                               dev_priv->perf.ctx_flexeu0_offset = 0x78e;
+                               perf->ctx_oactxctrl_offset = 0x124;
+                               perf->ctx_flexeu0_offset = 0x78e;
                        }
-                       dev_priv->perf.gen8_valid_ctx_bit = BIT(16);
+                       perf->gen8_valid_ctx_bit = BIT(16);
                }
        }
 
-       if (dev_priv->perf.ops.enable_metric_set) {
-               INIT_LIST_HEAD(&dev_priv->perf.streams);
-               mutex_init(&dev_priv->perf.lock);
+       if (perf->ops.enable_metric_set) {
+               INIT_LIST_HEAD(&perf->streams);
+               mutex_init(&perf->lock);
 
                oa_sample_rate_hard_limit = 1000 *
-                       (RUNTIME_INFO(dev_priv)->cs_timestamp_frequency_khz / 2);
-               dev_priv->perf.sysctl_header = register_sysctl_table(dev_root);
+                       (RUNTIME_INFO(i915)->cs_timestamp_frequency_khz / 2);
+               perf->sysctl_header = register_sysctl_table(dev_root);
 
-               mutex_init(&dev_priv->perf.metrics_lock);
-               idr_init(&dev_priv->perf.metrics_idr);
+               mutex_init(&perf->metrics_lock);
+               idr_init(&perf->metrics_idr);
 
                /* We set up some ratelimit state to potentially throttle any
                 * _NOTES about spurious, invalid OA reports which we don't
@@ -3639,44 +3630,40 @@ void i915_perf_init(struct drm_i915_private *dev_priv)
                 *
                 * Using the same limiting factors as printk_ratelimit()
                 */
-               ratelimit_state_init(&dev_priv->perf.spurious_report_rs,
-                                    5 * HZ, 10);
+               ratelimit_state_init(&perf->spurious_report_rs, 5 * HZ, 10);
                /* Since we use a DRM_NOTE for spurious reports it would be
                 * inconsistent to let __ratelimit() automatically print a
                 * warning for throttling.
                 */
-               ratelimit_set_flags(&dev_priv->perf.spurious_report_rs,
+               ratelimit_set_flags(&perf->spurious_report_rs,
                                    RATELIMIT_MSG_ON_RELEASE);
 
-               dev_priv->perf.initialized = true;
+               perf->i915 = i915;
        }
 }
 
 static int destroy_config(int id, void *p, void *data)
 {
-       struct drm_i915_private *dev_priv = data;
-       struct i915_oa_config *oa_config = p;
-
-       put_oa_config(dev_priv, oa_config);
-
+       put_oa_config(p);
        return 0;
 }
 
 /**
  * i915_perf_fini - Counter part to i915_perf_init()
- * @dev_priv: i915 device instance
+ * @i915: i915 device instance
  */
-void i915_perf_fini(struct drm_i915_private *dev_priv)
+void i915_perf_fini(struct drm_i915_private *i915)
 {
-       if (!dev_priv->perf.initialized)
-               return;
+       struct i915_perf *perf = &i915->perf;
 
-       idr_for_each(&dev_priv->perf.metrics_idr, destroy_config, dev_priv);
-       idr_destroy(&dev_priv->perf.metrics_idr);
+       if (!perf->i915)
+               return;
 
-       unregister_sysctl_table(dev_priv->perf.sysctl_header);
+       idr_for_each(&perf->metrics_idr, destroy_config, perf);
+       idr_destroy(&perf->metrics_idr);
 
-       memset(&dev_priv->perf.ops, 0, sizeof(dev_priv->perf.ops));
+       unregister_sysctl_table(perf->sysctl_header);
 
-       dev_priv->perf.initialized = false;
+       memset(&perf->ops, 0, sizeof(perf->ops));
+       perf->i915 = NULL;
 }
index edcab2d..3c62460 100644 (file)
@@ -12,6 +12,7 @@
 #include <linux/list.h>
 #include <linux/poll.h>
 #include <linux/sysfs.h>
+#include <linux/types.h>
 #include <linux/uuid.h>
 #include <linux/wait.h>
 
@@ -124,9 +125,14 @@ struct i915_perf_stream_ops {
  */
 struct i915_perf_stream {
        /**
-        * @dev_priv: i915 drm device
+        * @perf: i915_perf backpointer
         */
-       struct drm_i915_private *dev_priv;
+       struct i915_perf *perf;
+
+       /**
+        * @gt: intel_gt container
+        */
+       struct intel_gt *gt;
 
        /**
         * @link: Links the stream into ``&drm_i915_private->streams``
@@ -266,20 +272,19 @@ struct i915_oa_ops {
         * @is_valid_b_counter_reg: Validates register's address for
         * programming boolean counters for a particular platform.
         */
-       bool (*is_valid_b_counter_reg)(struct drm_i915_private *dev_priv,
-                                      u32 addr);
+       bool (*is_valid_b_counter_reg)(struct i915_perf *perf, u32 addr);
 
        /**
         * @is_valid_mux_reg: Validates register's address for programming mux
         * for a particular platform.
         */
-       bool (*is_valid_mux_reg)(struct drm_i915_private *dev_priv, u32 addr);
+       bool (*is_valid_mux_reg)(struct i915_perf *perf, u32 addr);
 
        /**
         * @is_valid_flex_reg: Validates register's address for programming
         * flex EU filtering for a particular platform.
         */
-       bool (*is_valid_flex_reg)(struct drm_i915_private *dev_priv, u32 addr);
+       bool (*is_valid_flex_reg)(struct i915_perf *perf, u32 addr);
 
        /**
         * @enable_metric_set: Selects and applies any MUX configuration to set
@@ -324,4 +329,60 @@ struct i915_oa_ops {
        u32 (*oa_hw_tail_read)(struct i915_perf_stream *stream);
 };
 
+struct i915_perf {
+       struct drm_i915_private *i915;
+
+       struct kobject *metrics_kobj;
+       struct ctl_table_header *sysctl_header;
+
+       /*
+        * Lock associated with adding/modifying/removing OA configs
+        * in dev_priv->perf.metrics_idr.
+        */
+       struct mutex metrics_lock;
+
+       /*
+        * List of dynamic configurations, you need to hold
+        * dev_priv->perf.metrics_lock to access it.
+        */
+       struct idr metrics_idr;
+
+       /*
+        * Lock associated with anything below within this structure
+        * except exclusive_stream.
+        */
+       struct mutex lock;
+       struct list_head streams;
+
+       /*
+        * The stream currently using the OA unit. If accessed
+        * outside a syscall associated to its file
+        * descriptor, you need to hold
+        * dev_priv->drm.struct_mutex.
+        */
+       struct i915_perf_stream *exclusive_stream;
+
+       /**
+        * For rate limiting any notifications of spurious
+        * invalid OA reports
+        */
+       struct ratelimit_state spurious_report_rs;
+
+       struct i915_oa_config test_config;
+
+       u32 gen7_latched_oastatus1;
+       u32 ctx_oactxctrl_offset;
+       u32 ctx_flexeu0_offset;
+
+       /**
+        * The RPT_ID/reason field for Gen8+ includes a bit
+        * to determine if the CTX ID in the report is valid
+        * but the specific bit differs between Gen 8 and 9
+        */
+       u32 gen8_valid_ctx_bit;
+
+       struct i915_oa_ops ops;
+       const struct i915_oa_format *oa_formats;
+};
+
 #endif /* _I915_PERF_TYPES_H_ */