igt_output_set_pipe with PIPE_ANY used to mean that we bind the output
to any pipe, but this is now a deprecated alias for PIPE_NONE, and
means the output will be unbound.

Because of this it's better to change output->pending_crtc_idx_mask to
an enum pipe, because only a single choice may be given for a pipe.

Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
---
 lib/igt_kms.c                 | 46 ++++++++++++++++++++-----------------------
 lib/igt_kms.h                 |  2 +-
 tests/kms_atomic_transition.c |  4 ++--
 tests/kms_busy.c              |  2 +-
 tests/kms_cursor_legacy.c     |  2 +-
 5 files changed, 26 insertions(+), 30 deletions(-)

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 7bcafc072f70..a5db6bc493c2 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -1561,9 +1561,10 @@ static void igt_display_log_shift(igt_display_t 
*display, int shift)
 static void igt_output_refresh(igt_output_t *output)
 {
        igt_display_t *display = output->display;
-       unsigned long crtc_idx_mask;
+       unsigned long crtc_idx_mask = 0;
 
-       crtc_idx_mask = output->pending_crtc_idx_mask;
+       if (output->pending_pipe != PIPE_NONE)
+               crtc_idx_mask = 1 << output->pending_pipe;
 
        kmstest_free_connector_config(&output->config);
 
@@ -1587,11 +1588,8 @@ static void igt_output_refresh(igt_output_t *output)
                                                    BROADCAST_RGB_FULL);
        }
 
-       if (output->config.pipe == PIPE_NONE)
-               return;
-
        LOG(display, "%s: Selecting pipe %s\n", output->name,
-           kmstest_pipe_name(output->config.pipe));
+           kmstest_pipe_name(output->pending_pipe));
 }
 
 static bool
@@ -1830,7 +1828,7 @@ void igt_display_init(igt_display_t *display, int drm_fd)
                 * a pipe is set with igt_output_set_pipe().
                 */
                output->force_reprobe = true;
-               output->pending_crtc_idx_mask = 0;
+               output->pending_pipe = PIPE_NONE;
                output->id = resources->connectors[i];
                output->display = display;
 
@@ -1960,10 +1958,12 @@ static void igt_display_refresh(igt_display_t *display)
        for (i = 0; i < display->n_outputs; i++) {
                output = &display->outputs[i];
 
-               if (pipes_in_use & output->pending_crtc_idx_mask)
-                       goto report_dup;
+               if (output->pending_pipe != PIPE_NONE) {
+                       if (pipes_in_use & (1 << output->pending_pipe))
+                               goto report_dup;
 
-               pipes_in_use |= output->pending_crtc_idx_mask;
+                       pipes_in_use |= 1 << output->pending_pipe;
+               }
 
                if (output->force_reprobe)
                        igt_output_refresh(output);
@@ -1975,11 +1975,11 @@ report_dup:
        for (; i > 0; i--) {
                igt_output_t *b = &display->outputs[i - 1];
 
-               igt_assert_f(output->pending_crtc_idx_mask !=
-                            b->pending_crtc_idx_mask,
+               igt_assert_f(output->pending_pipe !=
+                            b->pending_pipe,
                             "%s and %s are both trying to use pipe %s\n",
                             igt_output_name(output), igt_output_name(b),
-                            kmstest_pipe_name(ffs(b->pending_crtc_idx_mask) - 
1));
+                            kmstest_pipe_name(output->pending_pipe));
        }
 }
 
@@ -1988,7 +1988,7 @@ static igt_pipe_t 
*igt_output_get_driving_pipe(igt_output_t *output)
        igt_display_t *display = output->display;
        enum pipe pipe;
 
-       if (!output->pending_crtc_idx_mask) {
+       if (output->pending_pipe == PIPE_NONE) {
                /*
                 * The user hasn't specified a pipe to use, return none.
                 */
@@ -1998,7 +1998,7 @@ static igt_pipe_t 
*igt_output_get_driving_pipe(igt_output_t *output)
                 * Otherwise, return the pending pipe (ie the pipe that should
                 * drive this output after the commit()
                 */
-               pipe = ffs(output->pending_crtc_idx_mask) - 1;
+               pipe = output->pending_pipe;
        }
 
        igt_assert(pipe >= 0 && pipe < display->n_pipes);
@@ -2051,7 +2051,7 @@ static igt_output_t *igt_pipe_get_output(igt_pipe_t *pipe)
        for (i = 0; i < display->n_outputs; i++) {
                igt_output_t *output = &display->outputs[i];
 
-               if (output->pending_crtc_idx_mask == (1 << pipe->pipe))
+               if (output->pending_pipe == pipe->pipe)
                        return output;
        }
 
@@ -2860,22 +2860,18 @@ void igt_output_set_pipe(igt_output_t *output, enum 
pipe pipe)
 
        igt_assert(output->name);
 
-       if (output->pending_crtc_idx_mask) {
+       if (output->pending_pipe != PIPE_NONE) {
                old_pipe = igt_output_get_driving_pipe(output);
 
                old_pipe->mode_changed = true;
        }
 
-       if (pipe == PIPE_NONE) {
-               LOG(display, "%s: set_pipe(any)\n", igt_output_name(output));
-               output->pending_crtc_idx_mask = 0;
-       } else {
-               LOG(display, "%s: set_pipe(%s)\n", igt_output_name(output),
-                   kmstest_pipe_name(pipe));
-               output->pending_crtc_idx_mask = 1 << pipe;
+       LOG(display, "%s: set_pipe(%s)\n", igt_output_name(output),
+           kmstest_pipe_name(pipe));
+       output->pending_pipe = pipe;
 
+       if (pipe != PIPE_NONE)
                display->pipes[pipe].mode_changed = true;
-       }
 
        output->config.pipe_changed = true;
 
diff --git a/lib/igt_kms.h b/lib/igt_kms.h
index 62197dcfea7b..8dc118c961b7 100644
--- a/lib/igt_kms.h
+++ b/lib/igt_kms.h
@@ -361,7 +361,7 @@ typedef struct {
        struct kmstest_connector_config config;
        char *name;
        bool force_reprobe;
-       unsigned long pending_crtc_idx_mask;
+       enum pipe pending_pipe;
        bool use_override_mode;
        drmModeModeInfo override_mode;
 } igt_output_t;
diff --git a/tests/kms_atomic_transition.c b/tests/kms_atomic_transition.c
index 48823a09aed2..2ae75f2d6630 100644
--- a/tests/kms_atomic_transition.c
+++ b/tests/kms_atomic_transition.c
@@ -644,7 +644,7 @@ static unsigned set_combinations(igt_display_t *display, 
unsigned mask, struct i
                event_mask |= 1 << pipe;
 
                for_each_valid_output_on_pipe(display, pipe, output) {
-                       if (output->pending_crtc_idx_mask)
+                       if (output->pending_pipe != PIPE_NONE)
                                continue;
 
                        mode = igt_output_get_mode(output);
@@ -726,7 +726,7 @@ static void run_modeset_tests(igt_display_t *display, int 
howmany, bool nonblock
                        pipe_crcs[i] = igt_pipe_crc_new(display->drm_fd, i, 
INTEL_PIPE_CRC_SOURCE_AUTO);
 
                for_each_valid_output_on_pipe(display, i, output) {
-                       if (output->pending_crtc_idx_mask)
+                       if (output->pending_pipe != PIPE_NONE)
                                continue;
 
                        igt_output_set_pipe(output, i);
diff --git a/tests/kms_busy.c b/tests/kms_busy.c
index f430beaf7373..0828a8b38a06 100644
--- a/tests/kms_busy.c
+++ b/tests/kms_busy.c
@@ -41,7 +41,7 @@ set_fb_on_crtc(igt_display_t *dpy, int pipe, struct igt_fb 
*fb)
                drmModeModeInfoPtr mode;
                igt_plane_t *primary;
 
-               if (output->pending_crtc_idx_mask)
+               if (output->pending_pipe != PIPE_NONE)
                        continue;
 
                igt_output_set_pipe(output, pipe);
diff --git a/tests/kms_cursor_legacy.c b/tests/kms_cursor_legacy.c
index 65a001a9dec0..fc7526833673 100644
--- a/tests/kms_cursor_legacy.c
+++ b/tests/kms_cursor_legacy.c
@@ -155,7 +155,7 @@ static igt_output_t *set_fb_on_crtc(igt_display_t *display, 
enum pipe pipe, stru
                drmModeModeInfoPtr mode;
                igt_plane_t *primary;
 
-               if (output->pending_crtc_idx_mask)
+               if (output->pending_pipe != PIPE_NONE)
                        continue;
 
                igt_output_set_pipe(output, pipe);
-- 
2.14.1

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