From 21de5a9e34fb0f3efa31df5712cedc0ae97f7b4d Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 3 Jul 2019 16:52:25 +0100
Subject: drm/i915/gt: Ignore forcewake acquisition for posting_reads
Git-commit: 21de5a9e34fb0f3efa31df5712cedc0ae97f7b4d
Patch-mainline: v5.4-rc1
References: bsc#1152489
We don't care about the result of the read, so it may be garbage, we
only care that the mmio is flushed. As such, we can forgo using an
individual forcewake and lock around any posting-read for an engine.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190703155225.9501-4-chris@chris-wilson.co.uk
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/i915/gt/intel_engine.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_engine.h b/drivers/gpu/drm/i915/gt/intel_engine.h
index 557b08b13feb..0331e9ac2485 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine.h
@@ -51,7 +51,7 @@ struct drm_printer;
#define ENGINE_READ16(...) __ENGINE_READ_OP(read16, __VA_ARGS__)
#define ENGINE_READ(...) __ENGINE_READ_OP(read, __VA_ARGS__)
#define ENGINE_READ_FW(...) __ENGINE_READ_OP(read_fw, __VA_ARGS__)
-#define ENGINE_POSTING_READ(...) __ENGINE_READ_OP(posting_read, __VA_ARGS__)
+#define ENGINE_POSTING_READ(...) __ENGINE_READ_OP(posting_read_fw, __VA_ARGS__)
#define ENGINE_POSTING_READ16(...) __ENGINE_READ_OP(posting_read16, __VA_ARGS__)
#define ENGINE_READ64(engine__, lower_reg__, upper_reg__) \
--
2.28.0