6.11-stable review patch. If anyone has any objections, please let me know.
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From: José Roberto de Souza jose.souza@intel.com
commit 8135f1c09dd2eecee7cb637f7ec9a29e57300eb8 upstream.
Mesa testing on Xe2+ revealed that when OA metrics are collected for an exec_queue, after the OA stream is closed, future batch buffers submitted on that exec_queue do not complete. Not resetting OAC_CONTEXT_ENABLE on OA stream close resolves these hangs and should not have any adverse effects.
v2: Make the change that we don't reset the bit clearer (Ashutosh) Also make the same fix for OAC as OAR (Ashutosh)
Bspec: 60314 Fixes: 2f4a730fcd2d ("drm/xe/oa: Add OAR support") Fixes: 14e077f8006d ("drm/xe/oa: Add OAC support") Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/2821 Signed-off-by: José Roberto de Souza jose.souza@intel.com Signed-off-by: Ashutosh Dixit ashutosh.dixit@intel.com Cc: stable@vger.kernel.org Reviewed-by: Ashutosh Dixit ashutosh.dixit@intel.com Link: https://patchwork.freedesktop.org/patch/msgid/20240924213713.3497992-1-ashut... (cherry picked from commit 0c8650b09a365f4a31fca1d1d1e9d99c56071128) Signed-off-by: Lucas De Marchi lucas.demarchi@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/xe/xe_oa.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/xe/xe_oa.c b/drivers/gpu/drm/xe/xe_oa.c index eae38a49ee8e..2804f14f8f29 100644 --- a/drivers/gpu/drm/xe/xe_oa.c +++ b/drivers/gpu/drm/xe/xe_oa.c @@ -709,8 +709,7 @@ static int xe_oa_configure_oar_context(struct xe_oa_stream *stream, bool enable) { RING_CONTEXT_CONTROL(stream->hwe->mmio_base), regs_offset + CTX_CONTEXT_CONTROL, - _MASKED_FIELD(CTX_CTRL_OAC_CONTEXT_ENABLE, - enable ? CTX_CTRL_OAC_CONTEXT_ENABLE : 0) + _MASKED_BIT_ENABLE(CTX_CTRL_OAC_CONTEXT_ENABLE), }, }; struct xe_oa_reg reg_lri = { OAR_OACONTROL, oacontrol }; @@ -742,10 +741,8 @@ static int xe_oa_configure_oac_context(struct xe_oa_stream *stream, bool enable) { RING_CONTEXT_CONTROL(stream->hwe->mmio_base), regs_offset + CTX_CONTEXT_CONTROL, - _MASKED_FIELD(CTX_CTRL_OAC_CONTEXT_ENABLE, - enable ? CTX_CTRL_OAC_CONTEXT_ENABLE : 0) | - _MASKED_FIELD(CTX_CTRL_RUN_ALONE, - enable ? CTX_CTRL_RUN_ALONE : 0), + _MASKED_BIT_ENABLE(CTX_CTRL_OAC_CONTEXT_ENABLE) | + _MASKED_FIELD(CTX_CTRL_RUN_ALONE, enable ? CTX_CTRL_RUN_ALONE : 0), }, }; struct xe_oa_reg reg_lri = { OAC_OACONTROL, oacontrol };