Add directive __SIMPLE_DEVICE__

The tests for __PRE_RAM__ or __SMM__ were repeatedly used
for detection if dev->ops in the devicetree are not available
and simple device model functions need be used.

If a source file build for ramstage had __PRE_RAM__ inserted
at the beginning, the struct device would no longer match the
allocation the object had taken. This problem is fixed by
replacing such cases with explicit __SIMPLE_DEVICE__.

Change-Id: Ib74c9b2d8753e6e37e1a23fcfaa2f3657790d4c0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3555
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>

src/include/device/device.h

@@ -1,14 +1,15 @@
 #ifndef DEVICE_H
 #define DEVICE_H
 
-#ifndef __SMM__
 #include <stdint.h>
 #include <stddef.h>
+#include <arch/rules.h>
 #include <device/resource.h>
 #include <device/path.h>
 
 struct device;
-#ifndef __PRE_RAM__
+
+#ifndef __SIMPLE_DEVICE__
 typedef struct device * device_t;
 struct pci_operations;
 struct pci_bus_operations;
@@ -45,7 +46,7 @@ struct device_operations {
 	const struct pci_bus_operations * (*ops_pci_bus)(device_t dev);
 	const struct pnp_mode_ops *ops_pnp_mode;
 };
-#endif
+#endif /* ! __SIMPLE_DEVICE__ */
 
 
 struct bus {
@@ -116,9 +117,10 @@ struct device {
  * static.c file and is generated by the config tool at compile time.
  */
 extern ROMSTAGE_CONST struct device	dev_root;
-#ifndef __PRE_RAM__
-extern struct device	*all_devices;	/* list of all devices */
 
+#ifndef __SIMPLE_DEVICE__
+
+extern struct device	*all_devices;	/* list of all devices */
 extern struct resource	*free_resources;
 extern struct bus	*free_links;
 
@@ -222,13 +224,14 @@ void fixed_mem_resource(device_t dev, unsigned long index,
 
 void tolm_test(void *gp, struct device *dev, struct resource *new);
 u32 find_pci_tolm(struct bus *bus);
-#else
+
+#else /* vv __SIMPLE_DEVICE__ vv */
+
 ROMSTAGE_CONST struct device * dev_find_slot (unsigned int bus,
 						unsigned int devfn);
 ROMSTAGE_CONST struct device * dev_find_slot_on_smbus (unsigned int bus,
 							unsigned int addr);
+
 #endif
-#else /* __SMM__ */
-#include <arch/io.h>
-#endif /* __SMM__ */
+
 #endif /* DEVICE_H */

src/include/device/pci.h

@@ -17,13 +17,15 @@
 
 #include <stdint.h>
 #include <stddef.h>
+#include <arch/rules.h>
 #include <device/pci_def.h>
 #include <device/resource.h>
 #include <device/device.h>
-#if !defined(__PRE_RAM__) && !defined(__SMM__)
 #include <device/pci_ops.h>
 #include <device/pci_rom.h>
 
+#ifndef __SIMPLE_DEVICE__
+
 /* Common pci operations without a standard interface */
 struct pci_operations {
 	/* set the Subsystem IDs for the PCI device */
@@ -94,5 +96,5 @@ static inline const struct pci_operations *ops_pci(device_t dev)
 	return pops;
 }
 
-#endif
+#endif /* ! __SIMPLE_DEVICE__ */
 #endif /* PCI_H */

src/include/device/pci_ops.h

@@ -1,11 +1,11 @@
 #ifndef PCI_OPS_H
 #define PCI_OPS_H
 
-#ifndef __SMM__
 #include <stdint.h>
 #include <device/device.h>
 #include <arch/pci_ops.h>
 
+#ifndef __SIMPLE_DEVICE__
 u8 pci_read_config8(device_t dev, unsigned int where);
 u16 pci_read_config16(device_t dev, unsigned int where);
 u32 pci_read_config32(device_t dev, unsigned int where);

src/include/device/pnp.h

@@ -2,10 +2,12 @@
 #define DEVICE_PNP_H
 
 #include <stdint.h>
+#include <arch/rules.h>
 #include <device/device.h>
 #include <device/pnp_def.h>
 
-#if !defined(__PRE_RAM__) && !defined(__SMM__)
+#ifndef __SIMPLE_DEVICE__
+
 /* Primitive PNP resource manipulation */
 void pnp_write_config(device_t dev, u8 reg, u8 value);
 u8 pnp_read_config(device_t dev, u8 reg);
@@ -59,5 +61,5 @@ struct pnp_mode_ops {
 void pnp_enter_conf_mode(device_t dev);
 void pnp_exit_conf_mode(device_t dev);
 
-#endif
+#endif /* ! __SIMPLE_DEVICE__ */
 #endif /* DEVICE_PNP_H */