From: Shekhar Chauhan <shekhar.chauhan@intel.com>
Date: Fri, 6 Feb 2026 18:36:08 +0000 (-0300)
Subject: drm/xe/nvlp: Add NVL-P platform definition
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=be07d8f707e41cb694c4a56364978c30683a687d;p=thirdparty%2Flinux.git

drm/xe/nvlp: Add NVL-P platform definition

Add platform definition along with device IDs for NVL-P.  Here is the
list of device descriptor fields and associated Bspec references:

  .dma_mask_size (Bspec 74198)
  .has_cached_pt (Bspec 71582)
  .has_display (Bspec 74196)
  .has_flat_ccs (Bspec 74110)
  .has_page_reclaim_hw_assist (Bspec 73451)
  .max_gt_per_tile (Bspec 74196)
  .va_bits (Bspec 74198)
  .vm_max_level (Bspec 59507)

v2:
  - Add list of descriptor fields and Bspec references. (Matt)

Signed-off-by: Shekhar Chauhan <shekhar.chauhan@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patch.msgid.link/20260206-nvl-p-upstreaming-v3-12-636e1ad32688@intel.com
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
---

diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c
index e9180b01a4e40..cb8a177ec02bc 100644
--- a/drivers/gpu/drm/xe/xe_bo.c
+++ b/drivers/gpu/drm/xe/xe_bo.c
@@ -512,8 +512,8 @@ static struct ttm_tt *xe_ttm_tt_create(struct ttm_buffer_object *ttm_bo,
 		/*
 		 * Display scanout is always non-coherent with the CPU cache.
 		 *
-		 * For Xe_LPG and beyond, PPGTT PTE lookups are also
-		 * non-coherent and require a CPU:WC mapping.
+		 * For Xe_LPG and beyond up to NVL-P (excluding), PPGTT PTE
+		 * lookups are also non-coherent and require a CPU:WC mapping.
 		 */
 		if ((!bo->cpu_caching && bo->flags & XE_BO_FLAG_SCANOUT) ||
 		     (!xe->info.has_cached_pt && bo->flags & XE_BO_FLAG_PAGETABLE))
diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c
index 4abd64eccf270..3e1a87dd78e0a 100644
--- a/drivers/gpu/drm/xe/xe_pci.c
+++ b/drivers/gpu/drm/xe/xe_pci.c
@@ -450,6 +450,20 @@ static const struct xe_device_desc cri_desc = {
 	.vm_max_level = 4,
 };
 
+static const struct xe_device_desc nvlp_desc = {
+	PLATFORM(NOVALAKE_P),
+	.dma_mask_size = 46,
+	.has_cached_pt = true,
+	.has_display = true,
+	.has_flat_ccs = 1,
+	.has_page_reclaim_hw_assist = true,
+	.has_pre_prod_wa = true,
+	.max_gt_per_tile = 2,
+	.require_force_probe = true,
+	.va_bits = 48,
+	.vm_max_level = 4,
+};
+
 #undef PLATFORM
 __diag_pop();
 
@@ -479,6 +493,7 @@ static const struct pci_device_id pciidlist[] = {
 	INTEL_WCL_IDS(INTEL_VGA_DEVICE, &ptl_desc),
 	INTEL_NVLS_IDS(INTEL_VGA_DEVICE, &nvls_desc),
 	INTEL_CRI_IDS(INTEL_PCI_DEVICE, &cri_desc),
+	INTEL_NVLP_IDS(INTEL_VGA_DEVICE, &nvlp_desc),
 	{ }
 };
 MODULE_DEVICE_TABLE(pci, pciidlist);
diff --git a/drivers/gpu/drm/xe/xe_platform_types.h b/drivers/gpu/drm/xe/xe_platform_types.h
index f516dbddfd882..6cff385227ea1 100644
--- a/drivers/gpu/drm/xe/xe_platform_types.h
+++ b/drivers/gpu/drm/xe/xe_platform_types.h
@@ -26,6 +26,7 @@ enum xe_platform {
 	XE_PANTHERLAKE,
 	XE_NOVALAKE_S,
 	XE_CRESCENTISLAND,
+	XE_NOVALAKE_P,
 };
 
 enum xe_subplatform {
diff --git a/include/drm/intel/pciids.h b/include/drm/intel/pciids.h
index 52520e684ab19..33b91cb2e6845 100644
--- a/include/drm/intel/pciids.h
+++ b/include/drm/intel/pciids.h
@@ -900,4 +900,16 @@
 #define INTEL_CRI_IDS(MACRO__, ...) \
 	MACRO__(0x674C, ## __VA_ARGS__)
 
+/* NVL-P */
+#define INTEL_NVLP_IDS(MACRO__, ...) \
+	MACRO__(0xD750, ## __VA_ARGS__), \
+	MACRO__(0xD751, ## __VA_ARGS__), \
+	MACRO__(0xD752, ## __VA_ARGS__), \
+	MACRO__(0xD753, ## __VA_ARGS__), \
+	MACRO__(0XD754, ## __VA_ARGS__), \
+	MACRO__(0XD755, ## __VA_ARGS__), \
+	MACRO__(0XD756, ## __VA_ARGS__), \
+	MACRO__(0XD757, ## __VA_ARGS__), \
+	MACRO__(0xD75F, ## __VA_ARGS__)
+
 #endif /* __PCIIDS_H__ */