lib/fmap: Add optional pre-RAM cache
This patch adds an optional pre-RAM cache for the FMAP which most
platforms should be able to use, complementing the recently added
post-RAM FMAP cache in CBMEM. vboot systems currently read the FMAP
about half a dozen times from flash in verstage, which will all be
coalesced into a single read with this patch. It will also help
future vboot improvements since when FMAP reads become "free" vboot
doesn't need to keep track of so much information separately.
In order to make sure we have a single, well-defined point where the new
cache is first initialized, eliminate the build-time hardcoding of the
CBFS section offsets, so that all CBFS accesses explicitly read the
FMAP.
Add FMAP_CACHEs to all platforms that can afford it (other than the
RISC-V things where I have no idea how they work), trying to take the
space from things that look like they were oversized anyway (pre-RAM
consoles and CBFS caches).
Change-Id: I2820436776ef620bdc4481b5cd4b6957764248ea
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36657
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Joel Kitching <kitching@google.com>
diff --git a/src/soc/mediatek/mt8173/include/soc/memlayout.ld b/src/soc/mediatek/mt8173/include/soc/memlayout.ld
index adda86e..2358c39 100644
--- a/src/soc/mediatek/mt8173/include/soc/memlayout.ld
+++ b/src/soc/mediatek/mt8173/include/soc/memlayout.ld
@@ -40,7 +40,8 @@
SRAM_START(0x00100000)
VBOOT2_WORK(0x00100000, 12K)
VBOOT2_TPM_LOG(0x00103000, 2K)
- PRERAM_CBMEM_CONSOLE(0x00103800, 14K)
+ FMAP_CACHE(0x00103800, 2K)
+ PRERAM_CBMEM_CONSOLE(0x00104000, 12K)
WATCHDOG_TOMBSTONE(0x00107000, 4)
PRERAM_CBFS_CACHE(0x00107004, 16K - 4)
TIMESTAMP(0x0010B000, 4K)
diff --git a/src/soc/mediatek/mt8183/include/soc/memlayout.ld b/src/soc/mediatek/mt8183/include/soc/memlayout.ld
index 82e404f..a8f464a 100644
--- a/src/soc/mediatek/mt8183/include/soc/memlayout.ld
+++ b/src/soc/mediatek/mt8183/include/soc/memlayout.ld
@@ -34,7 +34,8 @@
VBOOT2_TPM_LOG(0x00103000, 2K)
PRERAM_CBMEM_CONSOLE(0x00103800, 14K)
WATCHDOG_TOMBSTONE(0x00107000, 4)
- PRERAM_CBFS_CACHE(0x00107004, 48K - 4)
+ PRERAM_CBFS_CACHE(0x00107004, 46K - 4)
+ FMAP_CACHE(0x00112800, 2K)
TIMESTAMP(0x00113000, 4K)
STACK(0x00114000, 16K)
TTB(0x00118000, 28K)
diff --git a/src/soc/nvidia/tegra124/include/soc/memlayout.ld b/src/soc/nvidia/tegra124/include/soc/memlayout.ld
index 7e2f9ec..7e2cc7ad 100644
--- a/src/soc/nvidia/tegra124/include/soc/memlayout.ld
+++ b/src/soc/nvidia/tegra124/include/soc/memlayout.ld
@@ -28,7 +28,8 @@
SRAM_START(0x40000000)
TTB(0x40000000, 16K + 32)
PRERAM_CBMEM_CONSOLE(0x40004020, 6K - 32)
- PRERAM_CBFS_CACHE(0x40005800, 16K)
+ FMAP_CACHE(0x40005800, 2K)
+ PRERAM_CBFS_CACHE(0x40006000, 14K)
VBOOT2_WORK(0x40009800, 12K)
VBOOT2_TPM_LOG(0x4000D800, 2K)
STACK(0x4000E000, 8K)
diff --git a/src/soc/nvidia/tegra210/include/soc/memlayout.ld b/src/soc/nvidia/tegra210/include/soc/memlayout.ld
index 1134da6..b7268d1 100644
--- a/src/soc/nvidia/tegra210/include/soc/memlayout.ld
+++ b/src/soc/nvidia/tegra210/include/soc/memlayout.ld
@@ -29,7 +29,8 @@
{
SRAM_START(0x40000000)
PRERAM_CBMEM_CONSOLE(0x40000000, 2K)
- PRERAM_CBFS_CACHE(0x40000800, 30K)
+ FMAP_CACHE(0x40000800, 2K)
+ PRERAM_CBFS_CACHE(0x40001000, 28K)
VBOOT2_WORK(0x40008000, 12K)
VBOOT2_TPM_LOG(0x4000B000, 2K)
#if ENV_ARM64
diff --git a/src/soc/qualcomm/ipq40xx/include/soc/memlayout.ld b/src/soc/qualcomm/ipq40xx/include/soc/memlayout.ld
index f1a7bc5..6ff1018 100644
--- a/src/soc/qualcomm/ipq40xx/include/soc/memlayout.ld
+++ b/src/soc/qualcomm/ipq40xx/include/soc/memlayout.ld
@@ -34,7 +34,8 @@
/* This includes bootblock image, can be reused after bootblock starts */
/* UBER_SBL(0x0A0C0000, 48K) */
- PRERAM_CBFS_CACHE(0x0A0C0000, 93K)
+ PRERAM_CBFS_CACHE(0x0A0C0000, 92K)
+ FMAP_CACHE(0x0A0EF800, 2K)
TTB(0x0A0F0000, 16K)
TTB_SUBTABLES(0x0A0F4000, 4K)
diff --git a/src/soc/qualcomm/ipq806x/include/soc/memlayout.ld b/src/soc/qualcomm/ipq806x/include/soc/memlayout.ld
index 25db175..595d939 100644
--- a/src/soc/qualcomm/ipq806x/include/soc/memlayout.ld
+++ b/src/soc/qualcomm/ipq806x/include/soc/memlayout.ld
@@ -38,7 +38,8 @@
QCA_SHARED_RAM(2A03F000, 4K)
*/
STACK(0x2A040000, 16K)
- PRERAM_CBFS_CACHE(0x2A044000, 93K)
+ PRERAM_CBFS_CACHE(0x2A044000, 91K)
+ FMAP_CACHE(0x2A05B000, 2K)
TTB_SUBTABLES(0x2A05B800, 2K)
TTB(0x2A05C000, 16K)
SRAM_END(0x2A060000)
diff --git a/src/soc/qualcomm/qcs405/include/soc/memlayout.ld b/src/soc/qualcomm/qcs405/include/soc/memlayout.ld
index 68642d6..dd013b5 100644
--- a/src/soc/qualcomm/qcs405/include/soc/memlayout.ld
+++ b/src/soc/qualcomm/qcs405/include/soc/memlayout.ld
@@ -39,7 +39,8 @@
TIMESTAMP(0x8C4F000, 1K)
PRERAM_CBMEM_CONSOLE(0x8C4F400, 32K)
PRERAM_CBFS_CACHE(0x8C57400, 70K)
- REGION(bsram_unused, 0x8C68C00, 0xA2400, 0x100)
+ FMAP_CACHE(0x8C68C00, 2K)
+ REGION(bsram_unused, 0x8C69400, 0xA1C00, 0x100)
BSRAM_END(0x8D80000)
DRAM_START(0x80000000)
diff --git a/src/soc/qualcomm/sc7180/include/soc/memlayout.ld b/src/soc/qualcomm/sc7180/include/soc/memlayout.ld
index b2ee3b2..3f43419 100644
--- a/src/soc/qualcomm/sc7180/include/soc/memlayout.ld
+++ b/src/soc/qualcomm/sc7180/include/soc/memlayout.ld
@@ -43,6 +43,7 @@
REGION(ddr_training, 0x14850000, 8K, 4K)
REGION(qclib_serial_log, 0x14852000, 4K, 4K)
REGION(ddr_information, 0x14853000, 1K, 1K)
+ FMAP_CACHE(0x14853400, 2K)
REGION(dcb, 0x14870000, 16K, 4K)
REGION(pmic, 0x14874000, 44K, 4K)
REGION(limits_cfg, 0x1487F000, 4K, 4K)
diff --git a/src/soc/rockchip/rk3399/include/soc/memlayout.ld b/src/soc/rockchip/rk3399/include/soc/memlayout.ld
index 293057a..4e46e2d 100644
--- a/src/soc/rockchip/rk3399/include/soc/memlayout.ld
+++ b/src/soc/rockchip/rk3399/include/soc/memlayout.ld
@@ -33,7 +33,8 @@
#if ENV_RAMSTAGE
REGION(bl31_sram, 0xFF8C0000, 64K, 1)
#else
- PRERAM_CBFS_CACHE(0xFF8C0000, 7K)
+ PRERAM_CBFS_CACHE(0xFF8C0000, 5K)
+ FMAP_CACHE(0xFF8C1400, 2K)
TIMESTAMP(0xFF8C1C00, 1K)
/* 0xFF8C2004 is the entry point address the masked ROM will jump to. */
OVERLAP_DECOMPRESSOR_VERSTAGE_ROMSTAGE(0xFF8C2004, 88K - 4)
diff --git a/src/soc/samsung/exynos5250/include/soc/memlayout.ld b/src/soc/samsung/exynos5250/include/soc/memlayout.ld
index 0bd319e..7e052f0 100644
--- a/src/soc/samsung/exynos5250/include/soc/memlayout.ld
+++ b/src/soc/samsung/exynos5250/include/soc/memlayout.ld
@@ -31,7 +31,8 @@
ROMSTAGE(0x2030000, 128K)
/* 32K hole */
TTB(0x2058000, 16K)
- PRERAM_CBFS_CACHE(0x205C000, 78K)
+ PRERAM_CBFS_CACHE(0x205C000, 76K)
+ FMAP_CACHE(0x206F000, 2K)
VBOOT2_TPM_LOG(0x206F800, 2K)
VBOOT2_WORK(0x2070000, 12K)
STACK(0x2074000, 16K)
diff --git a/src/soc/samsung/exynos5420/include/soc/memlayout.ld b/src/soc/samsung/exynos5420/include/soc/memlayout.ld
index bc5d066..ff781d2 100644
--- a/src/soc/samsung/exynos5420/include/soc/memlayout.ld
+++ b/src/soc/samsung/exynos5420/include/soc/memlayout.ld
@@ -32,7 +32,8 @@
ROMSTAGE(0x2030000, 128K)
/* 32K hole */
TTB(0x2058000, 16K)
- PRERAM_CBFS_CACHE(0x205C000, 76K)
+ PRERAM_CBFS_CACHE(0x205C000, 74K)
+ FMAP_CACHE(0x206E800, 2K)
STACK(0x206F000, 16K)
/* 1K hole for weird kernel-shared CPU/SMP state structure that doesn't
* seem to be implemented right now? */