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drm/xe/rtp: Keep track of non-OA nonpriv slots

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In order to dynamically whitelist/dewhitelist OA registers on OA stream
open/close, we need to keep track of nonpriv slots occupied by non-OA
register whitelists.

Fixes: 828a8eaf37 ("drm/xe/oa: Add MMIO trigger support")
Cc: stable@vger.kernel.org # v6.12+
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patch.msgid.link/20260615224227.34880-4-ashutosh.dixit@intel.com
(cherry picked from commit 15739920b71ef3c56868973b4e7e3164a793d09d)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
This commit is contained in:
Ashutosh Dixit 2026-06-15 15:42:21 -07:00 committed by Thomas Hellström
parent 31e2437561
commit 60d49ea28b
1 changed files with 5 additions and 2 deletions
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7
drivers/gpu/drm/xe/xe_reg_whitelist.c
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@ -161,7 +161,7 @@ static const struct xe_rtp_table_sr oa_whitelist = XE_RTP_TABLE_SR(
},
);
static void whitelist_apply_to_hwe(struct xe_hw_engine *hwe)
static int whitelist_apply_to_hwe(struct xe_hw_engine *hwe)
{
struct xe_reg_sr *sr = &hwe->reg_whitelist;
struct xe_reg_sr_entry *entry;
@ -193,6 +193,8 @@ static void whitelist_apply_to_hwe(struct xe_hw_engine *hwe)
slot++;
}
return slot;
}
/**
@ -206,9 +208,10 @@ static void whitelist_apply_to_hwe(struct xe_hw_engine *hwe)
void xe_reg_whitelist_process_engine(struct xe_hw_engine *hwe)
{
struct xe_rtp_process_ctx ctx = XE_RTP_PROCESS_CTX_INITIALIZER(hwe);
int first_oa_slot;
xe_rtp_process_to_sr(&ctx, &register_whitelist, &hwe->reg_whitelist, false);
whitelist_apply_to_hwe(hwe);
first_oa_slot = whitelist_apply_to_hwe(hwe);
xe_rtp_process_to_sr(&ctx, &oa_whitelist, &hwe->oa_whitelist, false);
}