#include "brw_defines.h"
#include "brw_state.h"
#include "intel_batchbuffer.h"
-#include "intel_reg.h"
+
+uint64_t
+brw_timebase_scale(struct brw_context *brw, uint64_t gpu_timestamp)
+{
+ const struct gen_device_info *devinfo = &brw->screen->devinfo;
+
+ return (1000000000ull * gpu_timestamp) / devinfo->timestamp_frequency;
+}
+
+/* As best we know currently, the Gen HW timestamps are 36bits across
+ * all platforms, which we need to account for when calculating a
+ * delta to measure elapsed time.
+ *
+ * The timestamps read via glGetTimestamp() / brw_get_timestamp() sometimes
+ * only have 32bits due to a kernel bug and so in that case we make sure to
+ * treat all raw timestamps as 32bits so they overflow consistently and remain
+ * comparable. (Note: the timestamps being passed here are not from the kernel
+ * so we don't need to be taking the upper 32bits in this buggy kernel case we
+ * are just clipping to 32bits here for consistency.)
+ */
+uint64_t
+brw_raw_timestamp_delta(struct brw_context *brw, uint64_t time0, uint64_t time1)
+{
+ if (brw->screen->hw_has_timestamp == 2) {
+ /* Kernel clips timestamps to 32bits in this case, so we also clip
+ * PIPE_CONTROL timestamps for consistency.
+ */
+ return (uint32_t)time1 - (uint32_t)time0;
+ } else {
+ if (time0 > time1) {
+ return (1ULL << 36) + time1 - time0;
+ } else {
+ return time1 - time0;
+ }
+ }
+}
/**
* Emit PIPE_CONTROLs to write the current GPU timestamp into a buffer.
*/
void
-brw_write_timestamp(struct brw_context *brw, drm_intel_bo *query_bo, int idx)
+brw_write_timestamp(struct brw_context *brw, struct brw_bo *query_bo, int idx)
{
- if (brw->gen == 6) {
+ const struct gen_device_info *devinfo = &brw->screen->devinfo;
+
+ if (devinfo->gen == 6) {
/* Emit Sandybridge workaround flush: */
brw_emit_pipe_control_flush(brw,
PIPE_CONTROL_CS_STALL |
PIPE_CONTROL_STALL_AT_SCOREBOARD);
}
- brw_emit_pipe_control_write(brw, PIPE_CONTROL_WRITE_TIMESTAMP,
- query_bo, idx * sizeof(uint64_t), 0, 0);
+ uint32_t flags = PIPE_CONTROL_WRITE_TIMESTAMP;
+
+ if (devinfo->gen == 9 && devinfo->gt == 4)
+ flags |= PIPE_CONTROL_CS_STALL;
+
+ brw_emit_pipe_control_write(brw, flags,
+ query_bo, idx * sizeof(uint64_t), 0);
}
/**
* Emit PIPE_CONTROLs to write the PS_DEPTH_COUNT register into a buffer.
*/
void
-brw_write_depth_count(struct brw_context *brw, drm_intel_bo *query_bo, int idx)
+brw_write_depth_count(struct brw_context *brw, struct brw_bo *query_bo, int idx)
{
- uint32_t flags;
+ const struct gen_device_info *devinfo = &brw->screen->devinfo;
+ uint32_t flags = PIPE_CONTROL_WRITE_DEPTH_COUNT | PIPE_CONTROL_DEPTH_STALL;
- flags = (PIPE_CONTROL_WRITE_DEPTH_COUNT |
- PIPE_CONTROL_DEPTH_STALL);
+ if (devinfo->gen == 9 && devinfo->gt == 4)
+ flags |= PIPE_CONTROL_CS_STALL;
- /* Needed to ensure the memory is coherent for the MI_LOAD_REGISTER_MEM
- * command when loading the values into the predicate source registers for
- * conditional rendering.
- */
- if (brw->predicate.supported)
- flags |= PIPE_CONTROL_FLUSH_ENABLE;
+ if (devinfo->gen >= 10) {
+ /* "Driver must program PIPE_CONTROL with only Depth Stall Enable bit set
+ * prior to programming a PIPE_CONTROL with Write PS Depth Count Post sync
+ * operation."
+ */
+ brw_emit_pipe_control_flush(brw, PIPE_CONTROL_DEPTH_STALL);
+ }
- brw_emit_pipe_control_write(brw, flags, query_bo,
- idx * sizeof(uint64_t), 0, 0);
+ brw_emit_pipe_control_write(brw, flags,
+ query_bo, idx * sizeof(uint64_t), 0);
}
/**
struct brw_query_object *query)
{
struct brw_context *brw = brw_context(ctx);
+ const struct gen_device_info *devinfo = &brw->screen->devinfo;
int i;
uint64_t *results;
- assert(brw->gen < 6);
+ assert(devinfo->gen < 6);
if (query->bo == NULL)
return;
* still contributing to it, flush it now so the results will be present
* when mapped.
*/
- if (drm_intel_bo_references(brw->batch.bo, query->bo))
+ if (brw_batch_references(&brw->batch, query->bo))
intel_batchbuffer_flush(brw);
if (unlikely(brw->perf_debug)) {
- if (drm_intel_bo_busy(query->bo)) {
+ if (brw_bo_busy(query->bo)) {
perf_debug("Stalling on the GPU waiting for a query object.\n");
}
}
- drm_intel_bo_map(query->bo, false);
- results = query->bo->virtual;
+ results = brw_bo_map(brw, query->bo, MAP_READ);
switch (query->Base.Target) {
case GL_TIME_ELAPSED_EXT:
/* The query BO contains the starting and ending timestamps.
* Subtract the two and convert to nanoseconds.
*/
- query->Base.Result += 1000 * ((results[1] >> 32) - (results[0] >> 32));
+ query->Base.Result = brw_raw_timestamp_delta(brw, results[0], results[1]);
+ query->Base.Result = brw_timebase_scale(brw, query->Base.Result);
break;
case GL_TIMESTAMP:
/* The query BO contains a single timestamp value in results[0]. */
- query->Base.Result = 1000 * (results[0] >> 32);
+ query->Base.Result = brw_timebase_scale(brw, results[0]);
+
+ /* Ensure the scaled timestamp overflows according to
+ * GL_QUERY_COUNTER_BITS
+ */
+ query->Base.Result &= (1ull << ctx->Const.QueryCounterBits.Timestamp) - 1;
break;
case GL_SAMPLES_PASSED_ARB:
default:
unreachable("Unrecognized query target in brw_queryobj_get_results()");
}
- drm_intel_bo_unmap(query->bo);
+ brw_bo_unmap(query->bo);
/* Now that we've processed the data stored in the query's buffer object,
* we can release it.
*/
- drm_intel_bo_unreference(query->bo);
+ brw_bo_unreference(query->bo);
query->bo = NULL;
}
{
struct brw_query_object *query = (struct brw_query_object *)q;
- drm_intel_bo_unreference(query->bo);
+ brw_bo_unreference(query->bo);
free(query);
}
{
struct brw_context *brw = brw_context(ctx);
struct brw_query_object *query = (struct brw_query_object *)q;
+ const struct gen_device_info *devinfo = &brw->screen->devinfo;
- assert(brw->gen < 6);
+ assert(devinfo->gen < 6);
switch (query->Base.Target) {
case GL_TIME_ELAPSED_EXT:
* obtain the time elapsed. Notably, this includes time elapsed while
* the system was doing other work, such as running other applications.
*/
- drm_intel_bo_unreference(query->bo);
- query->bo = drm_intel_bo_alloc(brw->bufmgr, "timer query", 4096, 4096);
+ brw_bo_unreference(query->bo);
+ query->bo = brw_bo_alloc(brw->bufmgr, "timer query", 4096, 4096);
brw_write_timestamp(brw, query->bo, 0);
break;
* Since we're starting a new query, we need to be sure to throw away
* any previous occlusion query results.
*/
- drm_intel_bo_unreference(query->bo);
+ brw_bo_unreference(query->bo);
query->bo = NULL;
query->last_index = -1;
{
struct brw_context *brw = brw_context(ctx);
struct brw_query_object *query = (struct brw_query_object *)q;
+ const struct gen_device_info *devinfo = &brw->screen->devinfo;
- assert(brw->gen < 6);
+ assert(devinfo->gen < 6);
switch (query->Base.Target) {
case GL_TIME_ELAPSED_EXT:
static void brw_wait_query(struct gl_context *ctx, struct gl_query_object *q)
{
struct brw_query_object *query = (struct brw_query_object *)q;
+ const struct gen_device_info *devinfo = &brw_context(ctx)->screen->devinfo;
- assert(brw_context(ctx)->gen < 6);
+ assert(devinfo->gen < 6);
brw_queryobj_get_results(ctx, query);
query->Base.Ready = true;
{
struct brw_context *brw = brw_context(ctx);
struct brw_query_object *query = (struct brw_query_object *)q;
+ const struct gen_device_info *devinfo = &brw->screen->devinfo;
- assert(brw->gen < 6);
+ assert(devinfo->gen < 6);
/* From the GL_ARB_occlusion_query spec:
*
* not ready yet on the first time it is queried. This ensures that
* the async query will return true in finite time.
*/
- if (query->bo && drm_intel_bo_references(brw->batch.bo, query->bo))
+ if (query->bo && brw_batch_references(&brw->batch, query->bo))
intel_batchbuffer_flush(brw);
- if (query->bo == NULL || !drm_intel_bo_busy(query->bo)) {
+ if (query->bo == NULL || !brw_bo_busy(query->bo)) {
brw_queryobj_get_results(ctx, query);
query->Base.Ready = true;
}
ensure_bo_has_space(struct gl_context *ctx, struct brw_query_object *query)
{
struct brw_context *brw = brw_context(ctx);
+ const struct gen_device_info *devinfo = &brw->screen->devinfo;
- assert(brw->gen < 6);
+ assert(devinfo->gen < 6);
if (!query->bo || query->last_index * 2 + 1 >= 4096 / sizeof(uint64_t)) {
brw_queryobj_get_results(ctx, query);
}
- query->bo = drm_intel_bo_alloc(brw->bufmgr, "query", 4096, 1);
+ query->bo = brw_bo_alloc(brw->bufmgr, "query", 4096, 1);
query->last_index = 0;
}
}
* current GPU time. This is unlike GL_TIME_ELAPSED, which measures the
* time while the query is active.
*/
-static void
+void
brw_query_counter(struct gl_context *ctx, struct gl_query_object *q)
{
struct brw_context *brw = brw_context(ctx);
assert(q->Target == GL_TIMESTAMP);
- drm_intel_bo_unreference(query->bo);
- query->bo = drm_intel_bo_alloc(brw->bufmgr, "timestamp query", 4096, 4096);
+ brw_bo_unreference(query->bo);
+ query->bo = brw_bo_alloc(brw->bufmgr, "timestamp query", 4096, 4096);
brw_write_timestamp(brw, query->bo, 0);
query->flushed = false;
struct brw_context *brw = brw_context(ctx);
uint64_t result = 0;
- switch (brw->intelScreen->hw_has_timestamp) {
+ switch (brw->screen->hw_has_timestamp) {
case 3: /* New kernel, always full 36bit accuracy */
- drm_intel_reg_read(brw->bufmgr, TIMESTAMP | 1, &result);
+ brw_reg_read(brw->bufmgr, TIMESTAMP | 1, &result);
break;
case 2: /* 64bit kernel, result is left-shifted by 32bits, losing 4bits */
- drm_intel_reg_read(brw->bufmgr, TIMESTAMP, &result);
+ brw_reg_read(brw->bufmgr, TIMESTAMP, &result);
result = result >> 32;
break;
case 1: /* 32bit kernel, result is 36bit wide but may be inaccurate! */
- drm_intel_reg_read(brw->bufmgr, TIMESTAMP, &result);
+ brw_reg_read(brw->bufmgr, TIMESTAMP, &result);
break;
}
- /* See logic in brw_queryobj_get_results() */
- result *= 80;
- result &= (1ull << 36) - 1;
+ /* Scale to nanosecond units */
+ result = brw_timebase_scale(brw, result);
+
+ /* Ensure the scaled timestamp overflows according to
+ * GL_QUERY_COUNTER_BITS. Technically this isn't required if
+ * querying GL_TIMESTAMP via glGetInteger but it seems best to keep
+ * QueryObject and GetInteger timestamps consistent.
+ */
+ result &= (1ull << ctx->Const.QueryCounterBits.Timestamp) - 1;
return result;
}
+/**
+ * Is this type of query written by PIPE_CONTROL?
+ */
+bool
+brw_is_query_pipelined(struct brw_query_object *query)
+{
+ switch (query->Base.Target) {
+ case GL_TIMESTAMP:
+ case GL_TIME_ELAPSED:
+ case GL_ANY_SAMPLES_PASSED:
+ case GL_ANY_SAMPLES_PASSED_CONSERVATIVE:
+ case GL_SAMPLES_PASSED_ARB:
+ return true;
+
+ case GL_PRIMITIVES_GENERATED:
+ case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
+ case GL_TRANSFORM_FEEDBACK_STREAM_OVERFLOW_ARB:
+ case GL_TRANSFORM_FEEDBACK_OVERFLOW_ARB:
+ case GL_VERTICES_SUBMITTED_ARB:
+ case GL_PRIMITIVES_SUBMITTED_ARB:
+ case GL_VERTEX_SHADER_INVOCATIONS_ARB:
+ case GL_GEOMETRY_SHADER_INVOCATIONS:
+ case GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED_ARB:
+ case GL_FRAGMENT_SHADER_INVOCATIONS_ARB:
+ case GL_CLIPPING_INPUT_PRIMITIVES_ARB:
+ case GL_CLIPPING_OUTPUT_PRIMITIVES_ARB:
+ case GL_COMPUTE_SHADER_INVOCATIONS_ARB:
+ case GL_TESS_CONTROL_SHADER_PATCHES_ARB:
+ case GL_TESS_EVALUATION_SHADER_INVOCATIONS_ARB:
+ return false;
+
+ default:
+ unreachable("Unrecognized query target in is_query_pipelined()");
+ }
+}
+
/* Initialize query object functions used on all generations. */
void brw_init_common_queryobj_functions(struct dd_function_table *functions)
{
functions->NewQueryObject = brw_new_query_object;
functions->DeleteQuery = brw_delete_query;
- functions->QueryCounter = brw_query_counter;
functions->GetTimestamp = brw_get_timestamp;
}
functions->EndQuery = brw_end_query;
functions->CheckQuery = brw_check_query;
functions->WaitQuery = brw_wait_query;
+ functions->QueryCounter = brw_query_counter;
}
projects / mesa.git / blobdiff