From 780e90e4a265532cf96c887267b80c691f016996 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@linux.ie>
Date: Thu, 29 Dec 2005 00:17:51 +0000
Subject: [PATCH] add radeon card type get param so userspace can avoid walking
 PCI

---
 shared-core/radeon_drm.h   | 6 ++++++
 shared-core/radeon_drv.h   | 5 +++--
 shared-core/radeon_state.c | 9 +++++++++
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/shared-core/radeon_drm.h b/shared-core/radeon_drm.h
index e9a1f9b4..78492e78 100644
--- a/shared-core/radeon_drm.h
+++ b/shared-core/radeon_drm.h
@@ -624,6 +624,11 @@ typedef struct drm_radeon_indirect {
 	int discard;
 } drm_radeon_indirect_t;
 
+/* enum for card type parameters */
+#define RADEON_CARD_PCI 0
+#define RADEON_CARD_AGP 1
+#define RADEON_CARD_PCIE 2
+
 /* 1.3: An ioctl to get parameters that aren't available to the 3d
  * client any other way.
  */
@@ -640,6 +645,7 @@ typedef struct drm_radeon_indirect {
 #define RADEON_PARAM_SAREA_HANDLE          9
 #define RADEON_PARAM_GART_TEX_HANDLE       10
 #define RADEON_PARAM_SCRATCH_OFFSET        11
+#define RADEON_PARAM_CARD_TYPE             12
 
 typedef struct drm_radeon_getparam {
 	int param;
diff --git a/shared-core/radeon_drv.h b/shared-core/radeon_drv.h
index ab368262..615afc78 100644
--- a/shared-core/radeon_drv.h
+++ b/shared-core/radeon_drv.h
@@ -38,7 +38,7 @@
 
 #define DRIVER_NAME		"radeon"
 #define DRIVER_DESC		"ATI Radeon"
-#define DRIVER_DATE		"20050911"
+#define DRIVER_DATE		"20051229"
 
 /* Interface history:
  *
@@ -88,10 +88,11 @@
          and R200_EMIT_ATF_TFACTOR (replaces R200_EMIT_TFACTOR_0 (8 consts instead of 6)
  * 1.19- Add support for gart table in FB memory and PCIE r300
  * 1.20- Add support for r300 texrect
+ * 1.21- Add support for card type getparam
  */
 
 #define DRIVER_MAJOR		1
-#define DRIVER_MINOR		20
+#define DRIVER_MINOR		21
 #define DRIVER_PATCHLEVEL	0
 
 enum radeon_family {
diff --git a/shared-core/radeon_state.c b/shared-core/radeon_state.c
index 670f6172..3682c68c 100644
--- a/shared-core/radeon_state.c
+++ b/shared-core/radeon_state.c
@@ -2952,6 +2952,15 @@ static int radeon_cp_getparam(DRM_IOCTL_ARGS)
 	case RADEON_PARAM_GART_TEX_HANDLE:
 		value = dev_priv->gart_textures_offset;
 		break;
+	
+	case RADEON_PARAM_CARD_TYPE:
+		if (dev_priv->flags & CHIP_IS_PCIE)
+			value = RADEON_CARD_PCIE;
+		else if (dev_priv->flags & CHIP_IS_AGP)
+			value = RADEON_CARD_AGP;
+		else
+			value = RADEON_CARD_PCI;
+		break;
 	default:
 		return DRM_ERR(EINVAL);
 	}