southbridge/hudson: Compile refactored SMI setup utilities in SMM

Refactor hudson_enable_gevent_smi() to allow configuring the interrupt
mode and trigger level. Move the utilities which are useful in SMM to
a separate file that is included in both ramstage and SMM. This is
useful for SMI handlers which need to enable or disable GEVENT SMIs
on-the-fly. A follow-up patch makes use of this infrastructure.

Change-Id: Ifa4c300c00c178b18d7280690cfc4b8367c669b8
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/170
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>

1 files changed, 0 insertions, 43 deletions

diff --git a/src/southbridge/amd/agesa/hudson/smi.c b/src/southbridge/amd/agesa/hudson/smi.c
index 168f2acb4a..1d58afe3f8 100644
--- a/src/southbridge/amd/agesa/hudson/smi.c
+++ b/src/southbridge/amd/agesa/hudson/smi.c
@@ -10,8 +10,6 @@
 #include <console/console.h>
 #include <cpu/cpu.h>
 
-#define HUDSON_SMI_ACPI_COMMAND		75
-
 void smm_setup_structures(void *gnvs, void *tcg, void *smi1)
 {
 	printk(BIOS_DEBUG, "smm_setup_structures STUB!!!\n");
@@ -25,44 +23,3 @@ void hudson_enable_smi_generation(void)
 	reg |= SMITRG0_EOS;	/* Set EOS bit */
 	smi_write32(SMI_REG_SMITRIG0, reg);
 }
-
-static void enable_smi(uint8_t smi_num)
-{
-	uint8_t reg32_offset, bit_offset;
-	uint32_t reg32;
-
-	/* SMI sources range from [0:149] */
-	if (smi_num > 149) {
-		printk(BIOS_WARNING, "BUG: Invalid SMI: %u\n", smi_num);
-		return;
-	}
-
-	/* 16 sources per register, 2 bits per source; registers are 4 bytes */
-	reg32_offset = (smi_num / 16) * 4;
-	bit_offset = (smi_num % 16) * 2;
-
-	reg32 = smi_read32(SMI_REG_CONTROL0 + reg32_offset);
-	reg32 &= ~(3 << (bit_offset));
-	reg32 |= (SMI_SRC_MODE_SMI << (bit_offset));
-	smi_write32(SMI_REG_CONTROL0 + reg32_offset, reg32);
-
-}
-
-/** Enable generation of SMIs for given GPE */
-void hudson_enable_gevent_smi(uint8_t gevent)
-{
-	/* GEVENT pins range from [0:23] */
-	if (gevent > 23) {
-		printk(BIOS_WARNING, "BUG: Invalid GEVENT: %u\n", gevent);
-		return;
-	}
-
-	/* SMI0 source is GEVENT0 and so on */
-	enable_smi(gevent);
-}
-
-/** Enable SMIs on writes to ACPI SMI command port */
-void hudson_enable_acpi_cmd_smi(void)
-{
-	enable_smi(HUDSON_SMI_ACPI_COMMAND);
-}