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drm/xe: Abstract the initial FB PTE checks a bit

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Add a few helpers that allow us to abstract the xe initial FB PTE
check a bit. Still very ad-hoc compared to the nicely abstracted
i915 counterpart, but whatever.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patch.msgid.link/20260511214122.8468-10-ville.syrjala@linux.intel.com
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
Acked-by: Matthew Brost <matthew.brost@intel.com> #teams
This commit is contained in:
Ville Syrjälä 2026-05-12 00:41:17 +03:00 committed by Maarten Lankhorst
parent 1d2a6c96f6
commit 1be929d430
1 changed files with 14 additions and 3 deletions
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17
drivers/gpu/drm/xe/display/xe_initial_plane.c
View File

@ -19,8 +19,19 @@
#include "xe_fb_pin.h"
#include "xe_ggtt.h"
#include "xe_mmio.h"
#include "xe_ttm_stolen_mgr.h"
#include "xe_vram_types.h"
static bool is_pte_local(u64 pte)
{
return pte & XE_GGTT_PTE_DM;
}
static bool need_pte_local(struct xe_device *xe)
{
return IS_DGFX(xe);
}
static struct xe_bo *
initial_plane_bo(struct xe_device *xe,
struct intel_initial_plane_config *plane_config)
@ -44,13 +55,13 @@ initial_plane_bo(struct xe_device *xe,
if (IS_DGFX(xe)) {
u64 pte = xe_ggtt_read_pte(tile0->mem.ggtt, base);
if (!(pte & XE_GGTT_PTE_DM)) {
drm_err(&xe->drm,
"Initial plane programming missing DM bit\n");
if (is_pte_local(pte) != need_pte_local(xe)) {
drm_err(&xe->drm, "Initial plane PTE has bad local memory bit\n");
return NULL;
}
phys_base = pte & ~(page_size - 1);
flags |= XE_BO_FLAG_VRAM0;
/*