From: Matthew Brost <matthew.brost@intel.com>
To: <intel-gfx@lists.freedesktop.org>, <dri-devel@lists.freedesktop.org>
Cc: <john.c.harrison@intel.com>
Subject: [Intel-gfx] [PATCH 05/25] drm/i915: Add logical engine mapping
Date: Wed, 13 Oct 2021 13:42:11 -0700 [thread overview]
Message-ID: <20211013204231.19287-6-matthew.brost@intel.com> (raw)
In-Reply-To: <20211013204231.19287-1-matthew.brost@intel.com>
Add logical engine mapping. This is required for split-frame, as
workloads need to be placed on engines in a logically contiguous manner.
v2:
(Daniel Vetter)
- Add kernel doc for new fields
v3:
(Tvrtko)
- Update comment for new logical_mask field
v4:
(John Harrison)
- Update comment for new logical_mask field
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
---
drivers/gpu/drm/i915/gt/intel_engine_cs.c | 60 ++++++++++++++++---
drivers/gpu/drm/i915/gt/intel_engine_types.h | 7 +++
.../drm/i915/gt/intel_execlists_submission.c | 1 +
drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c | 2 +-
.../gpu/drm/i915/gt/uc/intel_guc_submission.c | 21 +------
5 files changed, 62 insertions(+), 29 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 2ae57e4656a3..2eb798ad068b 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -290,7 +290,8 @@ static void nop_irq_handler(struct intel_engine_cs *engine, u16 iir)
GEM_DEBUG_WARN_ON(iir);
}
-static int intel_engine_setup(struct intel_gt *gt, enum intel_engine_id id)
+static int intel_engine_setup(struct intel_gt *gt, enum intel_engine_id id,
+ u8 logical_instance)
{
const struct engine_info *info = &intel_engines[id];
struct drm_i915_private *i915 = gt->i915;
@@ -335,6 +336,7 @@ static int intel_engine_setup(struct intel_gt *gt, enum intel_engine_id id)
engine->class = info->class;
engine->instance = info->instance;
+ engine->logical_mask = BIT(logical_instance);
__sprint_engine_name(engine);
engine->props.heartbeat_interval_ms =
@@ -588,6 +590,37 @@ static intel_engine_mask_t init_engine_mask(struct intel_gt *gt)
return info->engine_mask;
}
+static void populate_logical_ids(struct intel_gt *gt, u8 *logical_ids,
+ u8 class, const u8 *map, u8 num_instances)
+{
+ int i, j;
+ u8 current_logical_id = 0;
+
+ for (j = 0; j < num_instances; ++j) {
+ for (i = 0; i < ARRAY_SIZE(intel_engines); ++i) {
+ if (!HAS_ENGINE(gt, i) ||
+ intel_engines[i].class != class)
+ continue;
+
+ if (intel_engines[i].instance == map[j]) {
+ logical_ids[intel_engines[i].instance] =
+ current_logical_id++;
+ break;
+ }
+ }
+ }
+}
+
+static void setup_logical_ids(struct intel_gt *gt, u8 *logical_ids, u8 class)
+{
+ int i;
+ u8 map[MAX_ENGINE_INSTANCE + 1];
+
+ for (i = 0; i < MAX_ENGINE_INSTANCE + 1; ++i)
+ map[i] = i;
+ populate_logical_ids(gt, logical_ids, class, map, ARRAY_SIZE(map));
+}
+
/**
* intel_engines_init_mmio() - allocate and prepare the Engine Command Streamers
* @gt: pointer to struct intel_gt
@@ -599,7 +632,8 @@ int intel_engines_init_mmio(struct intel_gt *gt)
struct drm_i915_private *i915 = gt->i915;
const unsigned int engine_mask = init_engine_mask(gt);
unsigned int mask = 0;
- unsigned int i;
+ unsigned int i, class;
+ u8 logical_ids[MAX_ENGINE_INSTANCE + 1];
int err;
drm_WARN_ON(&i915->drm, engine_mask == 0);
@@ -609,15 +643,23 @@ int intel_engines_init_mmio(struct intel_gt *gt)
if (i915_inject_probe_failure(i915))
return -ENODEV;
- for (i = 0; i < ARRAY_SIZE(intel_engines); i++) {
- if (!HAS_ENGINE(gt, i))
- continue;
+ for (class = 0; class < MAX_ENGINE_CLASS + 1; ++class) {
+ setup_logical_ids(gt, logical_ids, class);
- err = intel_engine_setup(gt, i);
- if (err)
- goto cleanup;
+ for (i = 0; i < ARRAY_SIZE(intel_engines); ++i) {
+ u8 instance = intel_engines[i].instance;
+
+ if (intel_engines[i].class != class ||
+ !HAS_ENGINE(gt, i))
+ continue;
- mask |= BIT(i);
+ err = intel_engine_setup(gt, i,
+ logical_ids[instance]);
+ if (err)
+ goto cleanup;
+
+ mask |= BIT(i);
+ }
}
/*
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h
index 9167ce52487c..e0f773585c29 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
@@ -269,6 +269,13 @@ struct intel_engine_cs {
unsigned int guc_id;
intel_engine_mask_t mask;
+ /**
+ * @logical_mask: logical mask of engine, reported to user space via
+ * query IOCTL and used to communicate with the GuC in logical space.
+ * The logical instance of a physical engine can change based on product
+ * and fusing.
+ */
+ intel_engine_mask_t logical_mask;
u8 class;
u8 instance;
diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
index 73a79c2acd3a..43a74b216efb 100644
--- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
+++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
@@ -3877,6 +3877,7 @@ execlists_create_virtual(struct intel_engine_cs **siblings, unsigned int count)
ve->siblings[ve->num_siblings++] = sibling;
ve->base.mask |= sibling->mask;
+ ve->base.logical_mask |= sibling->logical_mask;
/*
* All physical engines must be compatible for their emission
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
index 2c6ea64af7ec..621c893a009f 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
@@ -176,7 +176,7 @@ static void guc_mapping_table_init(struct intel_gt *gt,
for_each_engine(engine, gt, id) {
u8 guc_class = engine_class_to_guc_class(engine->class);
- system_info->mapping_table[guc_class][engine->instance] =
+ system_info->mapping_table[guc_class][ilog2(engine->logical_mask)] =
engine->instance;
}
}
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index 51d3963cebbf..84b8e64b148f 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -1423,23 +1423,6 @@ static int deregister_context(struct intel_context *ce, u32 guc_id)
return __guc_action_deregister_context(guc, guc_id);
}
-static intel_engine_mask_t adjust_engine_mask(u8 class, intel_engine_mask_t mask)
-{
- switch (class) {
- case RENDER_CLASS:
- return mask >> RCS0;
- case VIDEO_ENHANCEMENT_CLASS:
- return mask >> VECS0;
- case VIDEO_DECODE_CLASS:
- return mask >> VCS0;
- case COPY_ENGINE_CLASS:
- return mask >> BCS0;
- default:
- MISSING_CASE(class);
- return 0;
- }
-}
-
static void guc_context_policy_init(struct intel_engine_cs *engine,
struct guc_lrc_desc *desc)
{
@@ -1481,8 +1464,7 @@ static int guc_lrc_desc_pin(struct intel_context *ce, bool loop)
desc = __get_lrc_desc(guc, desc_idx);
desc->engine_class = engine_class_to_guc_class(engine->class);
- desc->engine_submit_mask = adjust_engine_mask(engine->class,
- engine->mask);
+ desc->engine_submit_mask = engine->logical_mask;
desc->hw_context_desc = ce->lrc.lrca;
desc->priority = ce->guc_state.prio;
desc->context_flags = CONTEXT_REGISTRATION_FLAG_KMD;
@@ -3271,6 +3253,7 @@ guc_create_virtual(struct intel_engine_cs **siblings, unsigned int count)
}
ve->base.mask |= sibling->mask;
+ ve->base.logical_mask |= sibling->logical_mask;
if (n != 0 && ve->base.class != sibling->class) {
DRM_DEBUG("invalid mixing of engine class, sibling %d, already %d\n",
--
2.32.0
next prev parent reply other threads:[~2021-10-13 20:56 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-13 20:42 [Intel-gfx] [PATCH 00/25] Parallel submission aka multi-bb execbuf Matthew Brost
2021-10-13 20:42 ` [Intel-gfx] [PATCH 01/25] drm/i915/guc: Move GuC guc_id allocation under submission state sub-struct Matthew Brost
2021-10-13 23:56 ` John Harrison
2021-10-13 20:42 ` [Intel-gfx] [PATCH 02/25] drm/i915/guc: Take GT PM ref when deregistering context Matthew Brost
2021-10-13 23:59 ` John Harrison
2021-10-13 20:42 ` [Intel-gfx] [PATCH 03/25] drm/i915/guc: Take engine PM when a context is pinned with GuC submission Matthew Brost
2021-10-14 0:05 ` John Harrison
2021-10-13 20:42 ` [Intel-gfx] [PATCH 04/25] drm/i915/guc: Don't call switch_to_kernel_context " Matthew Brost
2021-10-13 20:42 ` Matthew Brost [this message]
2021-10-13 20:42 ` [Intel-gfx] [PATCH 06/25] drm/i915: Expose logical engine instance to user Matthew Brost
2021-10-13 20:42 ` [Intel-gfx] [PATCH 07/25] drm/i915/guc: Introduce context parent-child relationship Matthew Brost
2021-10-13 20:42 ` [Intel-gfx] [PATCH 08/25] drm/i915/guc: Add multi-lrc context registration Matthew Brost
2021-10-14 0:10 ` John Harrison
2021-10-14 4:26 ` Matthew Brost
2021-10-13 20:42 ` [Intel-gfx] [PATCH 09/25] drm/i915/guc: Ensure GuC schedule operations do not operate on child contexts Matthew Brost
2021-10-13 20:42 ` [Intel-gfx] [PATCH 10/25] drm/i915/guc: Assign contexts in parent-child relationship consecutive guc_ids Matthew Brost
2021-10-13 20:42 ` [Intel-gfx] [PATCH 11/25] drm/i915/guc: Implement parallel context pin / unpin functions Matthew Brost
2021-10-14 16:56 ` John Harrison
2021-10-13 20:42 ` [Intel-gfx] [PATCH 12/25] drm/i915/guc: Implement multi-lrc submission Matthew Brost
2021-10-14 0:25 ` John Harrison
2021-10-13 20:42 ` [Intel-gfx] [PATCH 13/25] drm/i915/guc: Insert submit fences between requests in parent-child relationship Matthew Brost
2021-10-13 20:42 ` [Intel-gfx] [PATCH 14/25] drm/i915/guc: Implement multi-lrc reset Matthew Brost
2021-10-14 0:28 ` John Harrison
2021-10-14 16:26 ` kernel test robot
2021-10-13 20:42 ` [Intel-gfx] [PATCH 15/25] drm/i915/guc: Update debugfs for GuC multi-lrc Matthew Brost
2021-10-13 20:42 ` [Intel-gfx] [PATCH 16/25] drm/i915/guc: Connect UAPI to GuC multi-lrc interface Matthew Brost
2021-10-14 1:02 ` John Harrison
2021-10-14 15:32 ` Matthew Brost
2021-10-14 16:43 ` John Harrison
2021-10-14 16:41 ` Matthew Brost
2021-10-14 17:15 ` John Harrison
2021-10-13 20:42 ` [Intel-gfx] [PATCH 17/25] drm/i915/doc: Update parallel submit doc to point to i915_drm.h Matthew Brost
2021-10-13 20:42 ` [Intel-gfx] [PATCH 18/25] drm/i915/guc: Add basic GuC multi-lrc selftest Matthew Brost
2021-10-13 20:42 ` [Intel-gfx] [PATCH 19/25] drm/i915/guc: Implement no mid batch preemption for multi-lrc Matthew Brost
2021-10-14 0:48 ` John Harrison
2021-10-13 20:42 ` [Intel-gfx] [PATCH 20/25] drm/i915: Multi-BB execbuf Matthew Brost
2021-10-14 0:55 ` John Harrison
2021-10-14 15:34 ` Matthew Brost
2021-10-13 20:42 ` [Intel-gfx] [PATCH 21/25] drm/i915/guc: Handle errors in multi-lrc requests Matthew Brost
2021-10-14 0:57 ` John Harrison
2021-10-13 20:42 ` [Intel-gfx] [PATCH 22/25] drm/i915: Make request conflict tracking understand parallel submits Matthew Brost
2021-10-14 0:59 ` John Harrison
2021-10-13 20:42 ` [Intel-gfx] [PATCH 23/25] drm/i915: Update I915_GEM_BUSY IOCTL to understand composite fences Matthew Brost
2021-10-13 20:42 ` [Intel-gfx] [PATCH 24/25] drm/i915: Enable multi-bb execbuf Matthew Brost
2021-10-13 20:42 ` [Intel-gfx] [PATCH 25/25] drm/i915/execlists: Weak parallel submission support for execlists Matthew Brost
2021-10-13 21:40 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Parallel submission aka multi-bb execbuf (rev6) Patchwork
2021-10-13 21:42 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2021-10-13 22:11 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork
-- strict thread matches above, loose matches on Subject: below --
2021-10-14 17:19 [Intel-gfx] [PATCH 00/25] Parallel submission aka multi-bb execbuf Matthew Brost
2021-10-14 17:19 ` [Intel-gfx] [PATCH 05/25] drm/i915: Add logical engine mapping Matthew Brost
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211013204231.19287-6-matthew.brost@intel.com \
--to=matthew.brost@intel.com \
--cc=dri-devel@lists.freedesktop.org \
--cc=intel-gfx@lists.freedesktop.org \
--cc=john.c.harrison@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox