drm/i915: give G45 and GM45 their own platform enums

Distinguish them better.

Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/987709804bc8fe55475e7481fcee03e7b86b1ba3.1480520526.git.jani.nikula@intel.com

drivers/gpu/drm/i915/i915_drv.h

@@ -757,7 +757,8 @@ enum intel_platform {
 	INTEL_PINEVIEW,
 	INTEL_I965G,
 	INTEL_I965GM,
-	INTEL_G4X,
+	INTEL_G45,
+	INTEL_GM45,
 	INTEL_IRONLAKE,
 	INTEL_SANDYBRIDGE,
 	INTEL_IVYBRIDGE,
@@ -2524,8 +2525,9 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define IS_I945GM(dev_priv)	((dev_priv)->info.platform == INTEL_I945GM)
 #define IS_I965G(dev_priv)	((dev_priv)->info.platform == INTEL_I965G)
 #define IS_I965GM(dev_priv)	((dev_priv)->info.platform == INTEL_I965GM)
-#define IS_GM45(dev_priv)	(INTEL_DEVID(dev_priv) == 0x2A42)
-#define IS_G4X(dev_priv)	((dev_priv)->info.platform == INTEL_G4X)
+#define IS_G45(dev_priv)	((dev_priv)->info.platform == INTEL_G45)
+#define IS_GM45(dev_priv)	((dev_priv)->info.platform == INTEL_GM45)
+#define IS_G4X(dev_priv)	(IS_G45(dev_priv) || IS_GM45(dev_priv))
 #define IS_PINEVIEW_G(dev_priv)	(INTEL_DEVID(dev_priv) == 0xa001)
 #define IS_PINEVIEW_M(dev_priv)	(INTEL_DEVID(dev_priv) == 0xa011)
 #define IS_PINEVIEW(dev_priv)	((dev_priv)->info.is_pineview)

drivers/gpu/drm/i915/i915_pci.c

@@ -172,14 +172,14 @@ static const struct intel_device_info intel_i965gm_info = {
 
 static const struct intel_device_info intel_g45_info = {
 	GEN4_FEATURES,
-	.platform = INTEL_G4X,
+	.platform = INTEL_G45,
 	.has_pipe_cxsr = 1,
 	.ring_mask = RENDER_RING | BSD_RING,
 };
 
 static const struct intel_device_info intel_gm45_info = {
 	GEN4_FEATURES,
-	.platform = INTEL_G4X,
+	.platform = INTEL_GM45,
 	.is_mobile = 1, .has_fbc = 1,
 	.has_pipe_cxsr = 1,
 	.supports_tv = 1,

drivers/gpu/drm/i915/intel_device_info.c

@@ -38,7 +38,8 @@ static const char * const platform_names[] = {
 	PLATFORM_NAME(PINEVIEW),
 	PLATFORM_NAME(I965G),
 	PLATFORM_NAME(I965GM),
-	PLATFORM_NAME(G4X),
+	PLATFORM_NAME(G45),
+	PLATFORM_NAME(GM45),
 	PLATFORM_NAME(IRONLAKE),
 	PLATFORM_NAME(SANDYBRIDGE),
 	PLATFORM_NAME(IVYBRIDGE),