From: Umesh Nerlige Ramappa Date: Thu, 9 Jul 2020 22:45:03 +0000 (+0100) Subject: drm/i915/perf: Use GTT when saving/restoring engine GPR X-Git-Tag: v5.9-rc1~51^2~7^2~24 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=e43ff99c8deda85234e6233e0f4af6cb09566a37;p=linux-block.git drm/i915/perf: Use GTT when saving/restoring engine GPR MI_STORE_REGISTER_MEM and MI_LOAD_REGISTER_MEM need to know which translation to use when saving restoring the engine general purpose registers to and from the GT scratch. Since GT scratch is mapped to ggtt, we need to set an additional bit in the command to use GTT. Fixes: daed3e44396d17 ("drm/i915/perf: implement active wait for noa configurations") Suggested-by: Prathap Kumar Valsan Signed-off-by: Umesh Nerlige Ramappa Reviewed-by: Lionel Landwerlin Reviewed-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20200709224504.11345-1-chris@chris-wilson.co.uk Signed-off-by: Chris Wilson --- diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index de69d430b1ed..c6f6370283cf 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -1592,6 +1592,7 @@ static u32 *save_restore_register(struct i915_perf_stream *stream, u32 *cs, u32 d; cmd = save ? MI_STORE_REGISTER_MEM : MI_LOAD_REGISTER_MEM; + cmd |= MI_SRM_LRM_GLOBAL_GTT; if (INTEL_GEN(stream->perf->i915) >= 8) cmd++;