Change in coreboot[master]: soc/block/systemagent: Do more fine grained resource allocation

[Arthur Heymans (Code Review)]

Attention is currently required from: Patrick Rudolph.
Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/59845 )

Change subject: soc/block/systemagent: Do more fine grained resource allocation
......................................................................

soc/block/systemagent: Do more fine grained resource allocation

Not all top_of_ram -> TOLUD is uncacheable mmio.

Change-Id: Idbceeb31f15ba78c9a241869b5a34cb378096dbb
Signed-off-by: Arthur Heymans 
---
M src/soc/intel/common/block/systemagent/systemagent.c
1 file changed, 21 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/45/59845/1

diff --git a/src/soc/intel/common/block/systemagent/systemagent.c b/src/soc/intel/common/block/systemagent/systemagent.c
index 63c2e14..5868a16 100644
--- a/src/soc/intel/common/block/systemagent/systemagent.c
+++ b/src/soc/intel/common/block/systemagent/systemagent.c
@@ -175,10 +175,29 @@

sa_get_mem_map(dev, &sa_map_values[0]);

-	/* top_of_ram -> TOLUD */
+	/* Uncacheable memory */
    base_k = top_of_ram;
+	size_k = sa_map_values[SA_TSEG_REG] - base_k;
+	if (size_k) {
+		printk(BIOS_DEBUG, "%s UC memory: base=0x%lx, size=0x%lx\n", __func__, base_k, size_k);
+		mmio_resource(dev, index++, base_k / KiB, size_k / KiB);
+	}
+
+	/* TSEG */
+	base_k = sa_map_values[SA_TSEG_REG];
+	size_k = sa_map_values[SA_BGSM_REG] - base_k;
+	if (size_k) {
+		printk(BIOS_DEBUG, "%s TSEG: base=0x%lx, size=0x%lx\n", __func__, base_k, size_k);
+		reserved_ram_resource(dev, index++, base_k / KiB, size_k / KiB);
+	}
+
+	/* GSM */
+	base_k = sa_map_values[SA_BGSM_REG];
    size_k = sa_map_values[SA_TOLUD_REG] - base_k;
-	mmio_resource(dev, index++, base_k / KiB, size_k / KiB);
+	if (size_k) {
+		printk(BIOS_DEBUG, "%s GSM: base=0x%lx, size=0x%lx\n", __func__, base_k, size_k);
+		mmio_resource(dev, index++, base_k / KiB, size_k / KiB);
+	}

/* 4GiB -> TOUUD */
    base_k = 4 * (GiB / KiB); /* 4GiB */