From e57f1c02155f4f108b9d3ba2bed687e8e9f95e18 Mon Sep 17 00:00:00 2001
From: Mahesh Kumar <mahesh1.kumar@intel.com>
Date: Thu, 17 Aug 2017 19:15:27 +0530
Subject: [PATCH] drm/i915/gen9+: Add has_ipc flag in device info structure
Git-commit: e57f1c02155f4f108b9d3ba2bed687e8e9f95e18
Patch-mainline: v4.15-rc1
References: FATE#322643 bsc#1055900

New Isochronous Priority Control (IPC) capability is introduced in newer
GEN platforms. This patch adds a device info flag to indicate if platform
supports IPC. Patch also sets this flag in supported platforms.

Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170817134529.2839-7-mahesh1.kumar@intel.com
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/i915/i915_drv.h |    5 ++++-
 drivers/gpu/drm/i915/i915_pci.c |    4 ++++
 2 files changed, 8 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -797,7 +797,8 @@ struct intel_csr {
 	func(cursor_needs_physical); \
 	func(hws_needs_physical); \
 	func(overlay_needs_physical); \
-	func(supports_tv);
+	func(supports_tv); \
+	func(has_ipc);
 
 struct sseu_dev_info {
 	u8 slice_mask;
@@ -3118,6 +3119,8 @@ intel_info(const struct drm_i915_private
 #define HAS_RUNTIME_PM(dev_priv) ((dev_priv)->info.has_runtime_pm)
 #define HAS_64BIT_RELOC(dev_priv) ((dev_priv)->info.has_64bit_reloc)
 
+#define HAS_IPC(dev_priv)		 ((dev_priv)->info.has_ipc)
+
 /*
  * For now, anything with a GuC requires uCode loading, and then supports
  * command submission once loaded. But these are logically independent
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -482,6 +482,7 @@ static const struct intel_device_info in
 	.has_full_48bit_ppgtt = 1, \
 	.has_reset_engine = 1, \
 	.has_snoop = true, \
+	.has_ipc = 1, \
 	GEN_DEFAULT_PIPEOFFSETS, \
 	IVB_CURSOR_OFFSETS, \
 	BDW_COLORS
@@ -505,6 +506,7 @@ static const struct intel_device_info in
 	.platform = INTEL_KABYLAKE, \
 	.has_csr = 1, \
 	.has_guc = 1, \
+	.has_ipc = 1, \
 	.ddb_size = 896
 
 static const struct intel_device_info intel_kabylake_gt1_info = {
@@ -530,6 +532,7 @@ static const struct intel_device_info in
 	.platform = INTEL_COFFEELAKE, \
 	.has_csr = 1, \
 	.has_guc = 1, \
+	.has_ipc = 1, \
 	.ddb_size = 896
 
 static const struct intel_device_info intel_coffeelake_gt1_info = {
@@ -556,6 +559,7 @@ static const struct intel_device_info in
 	.gt = 2,
 	.ddb_size = 1024,
 	.has_csr = 1,
+	.has_ipc = 1,
 	.color = { .degamma_lut_size = 0, .gamma_lut_size = 1024 }
 };