drm/xe: drop display/ subdir from include directories

There are very few places that need to include anything from under
display/. Require the display/ prefix in #include directives, and drop
the subdirectory from the header search path.

Sort the include lists while at it.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240122101428.2683468-2-jani.nikula@intel.com

drivers/gpu/drm/xe/Makefile

@@ -165,7 +165,6 @@ xe-$(CONFIG_DRM_XE_KUNIT_TEST) += \
 subdir-ccflags-$(CONFIG_DRM_XE_DISPLAY) += \
 	-I$(srctree)/$(src)/display/ext \
 	-I$(srctree)/$(src)/compat-i915-headers \
-	-I$(srctree)/drivers/gpu/drm/xe/display/ \
 	-I$(srctree)/drivers/gpu/drm/i915/display/ \
 	-Ddrm_i915_gem_object=xe_bo \
 	-Ddrm_i915_private=xe_device

drivers/gpu/drm/xe/xe_device.c

@@ -15,20 +15,21 @@
 #include <drm/drm_print.h>
 #include <drm/xe_drm.h>
 
+#include "display/xe_display.h"
 #include "regs/xe_gt_regs.h"
 #include "regs/xe_regs.h"
 #include "xe_bo.h"
 #include "xe_debugfs.h"
-#include "xe_display.h"
 #include "xe_dma_buf.h"
 #include "xe_drm_client.h"
 #include "xe_drv.h"
-#include "xe_exec_queue.h"
 #include "xe_exec.h"
+#include "xe_exec_queue.h"
 #include "xe_ggtt.h"
 #include "xe_gsc_proxy.h"
 #include "xe_gt.h"
 #include "xe_gt_mcr.h"
+#include "xe_hwmon.h"
 #include "xe_irq.h"
 #include "xe_memirq.h"
 #include "xe_mmio.h"
@@ -43,7 +44,6 @@
 #include "xe_ttm_sys_mgr.h"
 #include "xe_vm.h"
 #include "xe_wait_user_fence.h"
-#include "xe_hwmon.h"
 
 #ifdef CONFIG_LOCKDEP
 struct lockdep_map xe_device_mem_access_lockdep_map = {

drivers/gpu/drm/xe/xe_irq.c

@@ -9,10 +9,10 @@
 
 #include <drm/drm_managed.h>
 
+#include "display/xe_display.h"
 #include "regs/xe_gt_regs.h"
 #include "regs/xe_regs.h"
 #include "xe_device.h"
-#include "xe_display.h"
 #include "xe_drv.h"
 #include "xe_gsc_proxy.h"
 #include "xe_gt.h"

drivers/gpu/drm/xe/xe_pci.c

@@ -15,9 +15,9 @@
 #include <drm/drm_drv.h>
 #include <drm/xe_pciids.h>
 
+#include "display/xe_display.h"
 #include "regs/xe_gt_regs.h"
 #include "xe_device.h"
-#include "xe_display.h"
 #include "xe_drv.h"
 #include "xe_gt.h"
 #include "xe_macros.h"

drivers/gpu/drm/xe/xe_pm.c

@@ -10,11 +10,11 @@
 #include <drm/drm_managed.h>
 #include <drm/ttm/ttm_placement.h>
 
+#include "display/xe_display.h"
 #include "xe_bo.h"
 #include "xe_bo_evict.h"
 #include "xe_device.h"
 #include "xe_device_sysfs.h"
-#include "xe_display.h"
 #include "xe_ggtt.h"
 #include "xe_gt.h"
 #include "xe_guc.h"