Mesa (master): freedreno: add debug flag to force high priority context

[Rob Clark]

Module: Mesa
Branch: master
Commit: 308076fd55a44f8defedd80d75e256e51bdff0a2
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=308076fd55a44f8defedd80d75e256e51bdff0a2

Author: Rob Clark <robdclark at gmail.com>
Date:   Fri Aug 25 07:58:40 2017 -0400

freedreno: add debug flag to force high priority context

Mainly for testing, FD_MESA_DEBUG=hiprio will force high priority
contexts.

Signed-off-by: Rob Clark <robdclark at gmail.com>

---

 src/gallium/drivers/freedreno/freedreno_context.c | 4 +++-
 src/gallium/drivers/freedreno/freedreno_screen.c  | 1 +
 src/gallium/drivers/freedreno/freedreno_util.h    | 1 +
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/freedreno/freedreno_context.c b/src/gallium/drivers/freedreno/freedreno_context.c
index 59e902956f..0a2f02c5e9 100644
--- a/src/gallium/drivers/freedreno/freedreno_context.c
+++ b/src/gallium/drivers/freedreno/freedreno_context.c
@@ -263,7 +263,9 @@ fd_context_init(struct fd_context *ctx, struct pipe_screen *pscreen,
 	int i;
 
 	/* lower numerical value == higher priority: */
-	if (flags & PIPE_CONTEXT_HIGH_PRIORITY)
+	if (fd_mesa_debug & FD_DBG_HIPRIO)
+		prio = 0;
+	else if (flags & PIPE_CONTEXT_HIGH_PRIORITY)
 		prio = 0;
 	else if (flags & PIPE_CONTEXT_LOW_PRIORITY)
 		prio = 2;
diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c b/src/gallium/drivers/freedreno/freedreno_screen.c
index f1bc568240..1fca3c768b 100644
--- a/src/gallium/drivers/freedreno/freedreno_screen.c
+++ b/src/gallium/drivers/freedreno/freedreno_screen.c
@@ -81,6 +81,7 @@ static const struct debug_named_value debug_options[] = {
 		{"lrz",       FD_DBG_LRZ,    "Enable experimental LRZ support (a5xx+)"},
 		{"noindirect",FD_DBG_NOINDR, "Disable hw indirect draws (emulate on CPU)"},
 		{"noblit",    FD_DBG_NOBLIT, "Disable blitter (fallback to generic blit path)"},
+		{"hiprio",    FD_DBG_HIPRIO, "Force high-priority context"},
 		DEBUG_NAMED_VALUE_END
 };
 
diff --git a/src/gallium/drivers/freedreno/freedreno_util.h b/src/gallium/drivers/freedreno/freedreno_util.h
index f8bde6a88c..687d874b00 100644
--- a/src/gallium/drivers/freedreno/freedreno_util.h
+++ b/src/gallium/drivers/freedreno/freedreno_util.h
@@ -82,6 +82,7 @@ enum adreno_stencil_op fd_stencil_op(unsigned op);
 #define FD_DBG_LRZ     0x20000
 #define FD_DBG_NOINDR  0x40000
 #define FD_DBG_NOBLIT  0x80000
+#define FD_DBG_HIPRIO 0x100000
 
 extern int fd_mesa_debug;
 extern bool fd_binning_enabled;