[PATCH v4 1/5] drm/xe: Introduce has_atomic_enable_pte_bit device info

[Nirmoy Das]

Add has_atomic_enable_pte_bit to specify that a device
has PTE_AE bit in its PTE feild. Currently XE2 and PVC
supports this so set this for those two.

This will help consolidate setting atomic access bit in PTE
logic which is spread between multiple files.

Signed-off-by: Nirmoy Das <nirmoy.das at intel.com>
Reviewed-by: Oak Zeng <oak.zeng at intel.com>
Reviewed-by: José Roberto de Souza <jose.souza at intel.com>
---
 drivers/gpu/drm/xe/xe_device_types.h | 2 ++
 drivers/gpu/drm/xe/xe_pci.c          | 3 +++
 drivers/gpu/drm/xe/xe_pci_types.h    | 1 +
 3 files changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_device_types.h b/drivers/gpu/drm/xe/xe_device_types.h
index 0f68c55ea405..7cddb00f9c35 100644
--- a/drivers/gpu/drm/xe/xe_device_types.h
+++ b/drivers/gpu/drm/xe/xe_device_types.h
@@ -281,6 +281,8 @@ struct xe_device {
 		u8 has_heci_gscfi:1;
 		/** @info.skip_guc_pc: Skip GuC based PM feature init */
 		u8 skip_guc_pc:1;
+		/** @info.has_atomic_enable_pte_bit: Device has atomic enable PTE bit */
+		u8 has_atomic_enable_pte_bit:1;
 
 #if IS_ENABLED(CONFIG_DRM_XE_DISPLAY)
 		struct {
diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c
index a0cf5dd803c2..5618318e6f3a 100644
--- a/drivers/gpu/drm/xe/xe_pci.c
+++ b/drivers/gpu/drm/xe/xe_pci.c
@@ -146,6 +146,7 @@ static const struct xe_graphics_desc graphics_xehpc = {
 	.vram_flags = XE_VRAM_FLAGS_NEED64K,
 
 	.has_asid = 1,
+	.has_atomic_enable_pte_bit = 1,
 	.has_flat_ccs = 0,
 	.has_usm = 1,
 };
@@ -163,6 +164,7 @@ static const struct xe_graphics_desc graphics_xelpg = {
 #define XE2_GFX_FEATURES \
 	.dma_mask_size = 46, \
 	.has_asid = 1, \
+	.has_atomic_enable_pte_bit = 1, \
 	.has_flat_ccs = 1, \
 	.has_range_tlb_invalidation = 1, \
 	.has_usm = 1, \
@@ -629,6 +631,7 @@ static int xe_info_init(struct xe_device *xe,
 	xe->info.va_bits = graphics_desc->va_bits;
 	xe->info.vm_max_level = graphics_desc->vm_max_level;
 	xe->info.has_asid = graphics_desc->has_asid;
+	xe->info.has_atomic_enable_pte_bit = graphics_desc->has_atomic_enable_pte_bit;
 	xe->info.has_flat_ccs = graphics_desc->has_flat_ccs;
 	xe->info.has_range_tlb_invalidation = graphics_desc->has_range_tlb_invalidation;
 	xe->info.has_usm = graphics_desc->has_usm;
diff --git a/drivers/gpu/drm/xe/xe_pci_types.h b/drivers/gpu/drm/xe/xe_pci_types.h
index b1ad12fa22d6..e1f2b4879fc2 100644
--- a/drivers/gpu/drm/xe/xe_pci_types.h
+++ b/drivers/gpu/drm/xe/xe_pci_types.h
@@ -25,6 +25,7 @@ struct xe_graphics_desc {
 	u8 max_remote_tiles:2;
 
 	u8 has_asid:1;
+	u8 has_atomic_enable_pte_bit:1;
 	u8 has_flat_ccs:1;
 	u8 has_range_tlb_invalidation:1;
 	u8 has_usm:1;
-- 
2.42.0