[PATCH i-g-t 1/2] lib/igt_kms: Add 6k resolution support for a single CRTC

[Jeevan B <jeevan.b@intel.com>]

increase big_joiner limitation to 6k from 5k for display version
greater than 30.

Bspec: 68858

Signed-off-by: Jeevan B <jeevan.b@intel.com>
---
 lib/igt_kms.c | 22 ++++++++++++++--------
 lib/igt_kms.h |  5 +++--
 2 files changed, 17 insertions(+), 10 deletions(-)

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 76f32e1e0..fe5cea33d 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -6355,6 +6355,7 @@ int igt_get_max_dotclock(int fd)
 
 /**
  * igt_bigjoiner_possible:
+ * @fd: drm file descriptor
  * @mode: libdrm mode
  * @max_dotclock: Max pixel clock frequency
  *
@@ -6363,10 +6364,13 @@ int igt_get_max_dotclock(int fd)
  *
  * Returns: True if mode requires Bigjoiner, else False.
  */
-bool igt_bigjoiner_possible(drmModeModeInfo *mode, int max_dotclock)
+bool igt_bigjoiner_possible(int fd, drmModeModeInfo *mode, int max_dotclock)
 {
-	return (mode->hdisplay > MAX_HDISPLAY_PER_PIPE ||
-		mode->clock > max_dotclock);
+	int max_hdisplay, dev_id;
+	dev_id = intel_get_drm_devid(fd);
+	max_hdisplay = (intel_display_ver(dev_id) >= 30) ? HDISPLAY_6K_PER_PIPE :
+							   HDISPLAY_5K_PER_PIPE;
+	return (mode->hdisplay > max_hdisplay || mode->clock > max_dotclock);
 }
 
 /**
@@ -6387,10 +6391,10 @@ bool bigjoiner_mode_found(int drm_fd, drmModeConnector *connector,
 	bool found = false;
 
 	igt_sort_connector_modes(connector, sort_drm_modes_by_res_dsc);
-	found = igt_bigjoiner_possible(&connector->modes[0], max_dotclock);
+	found = igt_bigjoiner_possible(drm_fd, &connector->modes[0], max_dotclock);
 	if (!found) {
 		igt_sort_connector_modes(connector, sort_drm_modes_by_clk_dsc);
-		found = igt_bigjoiner_possible(&connector->modes[0], max_dotclock);
+		found = igt_bigjoiner_possible(drm_fd, &connector->modes[0], max_dotclock);
 	}
 	if (found)
 		*mode = connector->modes[0];
@@ -6409,7 +6413,7 @@ bool bigjoiner_mode_found(int drm_fd, drmModeConnector *connector,
  */
 bool igt_ultrajoiner_possible(drmModeModeInfo *mode, int max_dotclock)
 {
-	return (mode->hdisplay > 2 * MAX_HDISPLAY_PER_PIPE ||
+	return (mode->hdisplay > 2 * HDISPLAY_5K_PER_PIPE ||
 		mode->clock > 2 * max_dotclock);
 }
 
@@ -6574,7 +6578,8 @@ bool igt_check_bigjoiner_support(igt_display_t *display)
 	 *  - current & previous crtcs are consecutive
 	 */
 	for (i = 0; i < pipes_in_use; i++) {
-		if (pipes[i].force_joiner || igt_bigjoiner_possible(pipes[i].mode, max_dotclock)) {
+		if (pipes[i].force_joiner || igt_bigjoiner_possible(display->drm_fd, pipes[i].mode,
+		    max_dotclock)) {
 			igt_info("pipe-%s-%s: (Max dot-clock: %d KHz), force joiner: %s\n",
 				 kmstest_pipe_name(pipes[i].idx),
 				 igt_output_name(pipes[i].output),
@@ -6601,7 +6606,8 @@ bool igt_check_bigjoiner_support(igt_display_t *display)
 			}
 		}
 
-		if ((i > 0) && (pipes[i - 1].force_joiner || igt_bigjoiner_possible(pipes[i - 1].mode, max_dotclock))) {
+		if ((i > 0) && (pipes[i - 1].force_joiner || igt_bigjoiner_possible(display->drm_fd,
+		    pipes[i - 1].mode, max_dotclock))) {
 			igt_info("pipe-%s-%s: (Max dot-clock: %d KHz), force joiner: %s\n",
 				 kmstest_pipe_name(pipes[i - 1].idx),
 				 igt_output_name(pipes[i - 1].output),
diff --git a/lib/igt_kms.h b/lib/igt_kms.h
index 301f370df..547b45ae8 100644
--- a/lib/igt_kms.h
+++ b/lib/igt_kms.h
@@ -146,7 +146,8 @@ const char *kmstest_scaling_filter_str(int filter);
 const char *kmstest_dsc_output_format_str(int output_format);
 
 void kmstest_dump_mode(drmModeModeInfo *mode);
-#define MAX_HDISPLAY_PER_PIPE 5120
+#define HDISPLAY_6K_PER_PIPE 6144
+#define HDISPLAY_5K_PER_PIPE 5120
 
 int kmstest_get_pipe_from_crtc_id(int fd, int crtc_id);
 void kmstest_set_vt_graphics_mode(void);
@@ -1241,7 +1242,7 @@ void igt_sort_connector_modes(drmModeConnector *connector,
 bool igt_max_bpc_constraint(igt_display_t *display, enum pipe pipe,
 		igt_output_t *output, int bpc);
 int igt_get_max_dotclock(int fd);
-bool igt_bigjoiner_possible(drmModeModeInfo *mode, int max_dotclock);
+bool igt_bigjoiner_possible(int fd, drmModeModeInfo *mode, int max_dotclock);
 bool bigjoiner_mode_found(int drm_fd, drmModeConnector *connector,
 			  int max_dotclock, drmModeModeInfo *mode);
 bool igt_ultrajoiner_possible(drmModeModeInfo *mode, int max_dotclock);
-- 
2.25.1