Re: [PATCH] drm/i915/guc: Remove usage of the deprecated ida_simple_xx() API

From: Christophe JAILLET
Date: Sun Apr 14 2024 - 04:28:00 EST


Le 25/01/2024 à 01:04, Matthew Brost a écrit :
On Sun, Jan 14, 2024 at 04:15:34PM +0100, Christophe JAILLET wrote:
ida_alloc() and ida_free() should be preferred to the deprecated
ida_simple_get() and ida_simple_remove().

Note that the upper limit of ida_simple_get() is exclusive, but the one of
ida_alloc_range() is inclusive. So a -1 has been added when needed.

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>

Reviewed-by: Matthew Brost <matthew.brost@xxxxxxxxx>

Hi,

polite reminder ;-)

CJ


---
drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)

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 a259f1118c5a..73ce21ddf682 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -2156,11 +2156,10 @@ static int new_guc_id(struct intel_guc *guc, struct intel_context *ce)
order_base_2(ce->parallel.number_children
+ 1));
else
- ret = ida_simple_get(&guc->submission_state.guc_ids,
- NUMBER_MULTI_LRC_GUC_ID(guc),
- guc->submission_state.num_guc_ids,
- GFP_KERNEL | __GFP_RETRY_MAYFAIL |
- __GFP_NOWARN);
+ ret = ida_alloc_range(&guc->submission_state.guc_ids,
+ NUMBER_MULTI_LRC_GUC_ID(guc),
+ guc->submission_state.num_guc_ids - 1,
+ GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_NOWARN);
if (unlikely(ret < 0))
return ret;
@@ -2183,8 +2182,8 @@ static void __release_guc_id(struct intel_guc *guc, struct intel_context *ce)
+ 1));
} else {
--guc->submission_state.guc_ids_in_use;
- ida_simple_remove(&guc->submission_state.guc_ids,
- ce->guc_id.id);
+ ida_free(&guc->submission_state.guc_ids,
+ ce->guc_id.id);
}
clr_ctx_id_mapping(guc, ce->guc_id.id);
set_context_guc_id_invalid(ce);
--
2.43.0