From d8d94ba3fc4d28753d0d6ba08340d8467380e666 Mon Sep 17 00:00:00 2001
From: Changbin Du <changbin.du@intel.com>
Date: Tue, 6 Jun 2017 15:56:10 +0800
Subject: [PATCH] drm/i915/gvt: Cleanup struct intel_gvt_mmio_info
Git-commit: d8d94ba3fc4d28753d0d6ba08340d8467380e666
Patch-mainline: v4.13-rc1
References: FATE#322643 bsc#1055900

The size, length, addr_mask fields actually are not necessary. Every
tracked mmio has DWORD size, and addr_mask is a legacy field.

Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/i915/gvt/firmware.c |    9 ++-------
 drivers/gpu/drm/i915/gvt/handlers.c |    7 +------
 drivers/gpu/drm/i915/gvt/mmio.h     |    3 ---
 3 files changed, 3 insertions(+), 16 deletions(-)

--- a/drivers/gpu/drm/i915/gvt/firmware.c
+++ b/drivers/gpu/drm/i915/gvt/firmware.c
@@ -102,13 +102,8 @@ static int expose_firmware_sysfs(struct
 
 	p = firmware + h->mmio_offset;
 
-	hash_for_each(gvt->mmio.mmio_info_table, i, e, node) {
-		int j;
-
-		for (j = 0; j < e->length; j += 4)
-			*(u32 *)(p + e->offset + j) =
-				I915_READ_NOTRACE(_MMIO(e->offset + j));
-	}
+	hash_for_each(gvt->mmio.mmio_info_table, i, e, node)
+		*(u32 *)(p + e->offset) = I915_READ_NOTRACE(_MMIO(e->offset));
 
 	memcpy(gvt->firmware.mmio, p, info->mmio_size);
 
--- a/drivers/gpu/drm/i915/gvt/handlers.c
+++ b/drivers/gpu/drm/i915/gvt/handlers.c
@@ -131,9 +131,7 @@ static int new_mmio_info(struct intel_gv
 		if (p)
 			gvt_err("dup mmio definition offset %x\n",
 				info->offset);
-		info->size = size;
-		info->length = (i + 4) < end ? 4 : (end - i);
-		info->addr_mask = addr_mask;
+
 		info->ro_mask = ro_mask;
 		info->device = device;
 		info->read = read ? read : intel_vgpu_default_mmio_read;
@@ -3126,9 +3124,6 @@ int intel_vgpu_mmio_reg_rw(struct intel_
 		goto default_rw;
 	}
 
-	if (WARN_ON(bytes > mmio_info->size))
-		return -EINVAL;
-
 	if (is_read)
 		return mmio_info->read(vgpu, offset, pdata, bytes);
 	else {
--- a/drivers/gpu/drm/i915/gvt/mmio.h
+++ b/drivers/gpu/drm/i915/gvt/mmio.h
@@ -57,9 +57,6 @@ typedef int (*gvt_mmio_func)(struct inte
 
 struct intel_gvt_mmio_info {
 	u32 offset;
-	u32 size;
-	u32 length;
-	u32 addr_mask;
 	u64 ro_mask;
 	u32 device;
 	gvt_mmio_func read;