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authorKenneth Graunke <[email protected]>2018-09-28 15:42:51 +0200
committerKenneth Graunke <[email protected]>2019-02-21 10:26:08 -0800
commit1d91eba7dcfb37151399b21b419b0bef26a4431a (patch)
treecad2591f8bc1b246df9f568641239c9b2208d0dc /src
parent36fbcfb06c7e733a42fc8f9444faa81631ae2852 (diff)
iris: glGet timestamps, more correct timestamps
Diffstat (limited to 'src')
-rw-r--r--src/gallium/drivers/iris/iris_context.h5
-rw-r--r--src/gallium/drivers/iris/iris_query.c40
-rw-r--r--src/gallium/drivers/iris/iris_screen.c11
3 files changed, 48 insertions, 8 deletions
diff --git a/src/gallium/drivers/iris/iris_context.h b/src/gallium/drivers/iris/iris_context.h
index fdf531ef7e3..a2704ab8b3b 100644
--- a/src/gallium/drivers/iris/iris_context.h
+++ b/src/gallium/drivers/iris/iris_context.h
@@ -539,6 +539,11 @@ bool iris_blorp_upload_shader(struct blorp_batch *blorp_batch,
uint32_t *kernel_out,
void *prog_data_out);
+/* iris_query.c */
+
+uint64_t iris_timebase_scale(const struct gen_device_info *devinfo,
+ uint64_t gpu_timestamp);
+
/* iris_resolve.c */
void iris_predraw_resolve_inputs(struct iris_context *ice,
diff --git a/src/gallium/drivers/iris/iris_query.c b/src/gallium/drivers/iris/iris_query.c
index 46006d493c7..15937a8be8d 100644
--- a/src/gallium/drivers/iris/iris_query.c
+++ b/src/gallium/drivers/iris/iris_query.c
@@ -236,8 +236,27 @@ write_value(struct iris_context *ice, struct iris_query *q, unsigned offset)
}
}
+uint64_t
+iris_timebase_scale(const struct gen_device_info *devinfo,
+ uint64_t gpu_timestamp)
+{
+ return (1000000000ull * gpu_timestamp) / devinfo->timestamp_frequency;
+}
+
+static uint64_t
+iris_raw_timestamp_delta(uint64_t time0, uint64_t time1)
+{
+ if (time0 > time1) {
+ return (1ULL << 36) + time1 - time0;
+ } else {
+ return time1 - time0;
+ }
+}
+
+
static void
-calculate_result_on_cpu(struct iris_query *q)
+calculate_result_on_cpu(const struct gen_device_info *devinfo,
+ struct iris_query *q)
{
switch (q->type) {
case PIPE_QUERY_OCCLUSION_PREDICATE:
@@ -246,12 +265,16 @@ calculate_result_on_cpu(struct iris_query *q)
break;
case PIPE_QUERY_TIMESTAMP:
case PIPE_QUERY_TIMESTAMP_DISJOINT:
- /* The timestamp is the single ending snapshot. */
- // XXX: timebase scale
- q->result = q->map->end;
+ /* The timestamp is the single starting snapshot. */
+ q->result = iris_timebase_scale(devinfo, q->map->start);
+ // XXX: 36-bit overflow?
break;
- case PIPE_QUERY_OCCLUSION_COUNTER:
case PIPE_QUERY_TIME_ELAPSED:
+ q->result = iris_raw_timestamp_delta(q->map->start, q->map->end);
+ q->result = iris_timebase_scale(devinfo, q->result);
+ q->result &= (1ull << 36) - 1;
+ break;
+ case PIPE_QUERY_OCCLUSION_COUNTER:
case PIPE_QUERY_PRIMITIVES_GENERATED:
case PIPE_QUERY_PRIMITIVES_EMITTED:
case PIPE_QUERY_PIPELINE_STATISTICS:
@@ -397,6 +420,8 @@ iris_get_query_result(struct pipe_context *ctx,
{
struct iris_context *ice = (void *) ctx;
struct iris_query *q = (void *) query;
+ struct iris_screen *screen = (void *) ctx->screen;
+ const struct gen_device_info *devinfo = &screen->devinfo;
if (!q->ready) {
if (iris_batch_references(&ice->render_batch, q->bo))
@@ -410,7 +435,7 @@ iris_get_query_result(struct pipe_context *ctx,
}
assert(q->map->snapshots_landed);
- calculate_result_on_cpu(q);
+ calculate_result_on_cpu(devinfo, q);
}
assert(q->ready);
@@ -470,6 +495,7 @@ iris_get_query_result_resource(struct pipe_context *ctx,
struct iris_context *ice = (void *) ctx;
struct iris_query *q = (void *) query;
struct iris_batch *batch = &ice->render_batch;
+ const struct gen_device_info *devinfo = &batch->screen->devinfo;
unsigned snapshots_landed_offset =
offsetof(struct iris_query_snapshots, snapshots_landed);
@@ -492,7 +518,7 @@ iris_get_query_result_resource(struct pipe_context *ctx,
/* The final snapshots happen to have landed, so let's just compute
* the result on the CPU now...
*/
- calculate_result_on_cpu(q);
+ calculate_result_on_cpu(devinfo, q);
}
if (q->ready) {
diff --git a/src/gallium/drivers/iris/iris_screen.c b/src/gallium/drivers/iris/iris_screen.c
index efc6a7045da..658ecc1f591 100644
--- a/src/gallium/drivers/iris/iris_screen.c
+++ b/src/gallium/drivers/iris/iris_screen.c
@@ -374,7 +374,16 @@ iris_get_compute_param(struct pipe_screen *pscreen,
static uint64_t
iris_get_timestamp(struct pipe_screen *pscreen)
{
- return 0;
+ struct iris_screen *screen = (struct iris_screen *) pscreen;
+ const unsigned TIMESTAMP = 0x2358;
+ uint64_t result;
+
+ iris_reg_read(screen->bufmgr, TIMESTAMP, &result);
+
+ result = iris_timebase_scale(&screen->devinfo, result);
+ result &= (1ull << 36) - 1;
+
+ return result;
}
static void