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-rw-r--r--src/commonlib/Makefile.inc1
-rw-r--r--src/commonlib/include/commonlib/region.h8
-rw-r--r--src/commonlib/region.c12
-rw-r--r--src/drivers/spi/cbfs_spi.c19
-rw-r--r--src/include/cbfs.h15
-rw-r--r--src/include/symbols.h6
-rw-r--r--src/lib/cbfs.c61
-rw-r--r--src/mainboard/sifive/hifive-unleashed/media.c5
-rw-r--r--src/soc/samsung/exynos5250/spi.c6
-rw-r--r--src/soc/samsung/exynos5420/spi.c5
10 files changed, 89 insertions, 49 deletions
diff --git a/src/commonlib/Makefile.inc b/src/commonlib/Makefile.inc
index 1a38e4a89f..c5fa8ed85e 100644
--- a/src/commonlib/Makefile.inc
+++ b/src/commonlib/Makefile.inc
@@ -5,6 +5,7 @@ verstage-y += mem_pool.c
romstage-y += mem_pool.c
ramstage-y += mem_pool.c
postcar-y += mem_pool.c
+smm-y += mem_pool.c
bootblock-y += iobuf.c
verstage-y += iobuf.c
diff --git a/src/commonlib/include/commonlib/region.h b/src/commonlib/include/commonlib/region.h
index 4d095b731d..0080c441a5 100644
--- a/src/commonlib/include/commonlib/region.h
+++ b/src/commonlib/include/commonlib/region.h
@@ -196,18 +196,16 @@ extern const struct region_device_ops mem_rdev_rw_ops;
MEM_REGION_DEV_INIT(base_, size_, &mem_rdev_rw_ops) \
struct mmap_helper_region_device {
- struct mem_pool pool;
+ struct mem_pool *pool;
struct region_device rdev;
};
-#define MMAP_HELPER_REGION_INIT(ops_, offset_, size_) \
+#define MMAP_HELPER_DEV_INIT(ops_, offset_, size_, mpool_) \
{ \
.rdev = REGION_DEV_INIT((ops_), (offset_), (size_)), \
+ .pool = (mpool_), \
}
-void mmap_helper_device_init(struct mmap_helper_region_device *mdev,
- void *cache, size_t cache_size);
-
void *mmap_helper_rdev_mmap(const struct region_device *, size_t, size_t);
int mmap_helper_rdev_munmap(const struct region_device *, void *);
diff --git a/src/commonlib/region.c b/src/commonlib/region.c
index a10702a6c5..55c0679033 100644
--- a/src/commonlib/region.c
+++ b/src/commonlib/region.c
@@ -287,12 +287,6 @@ const struct region_device_ops mem_rdev_rw_ops = {
.eraseat = mdev_eraseat,
};
-void mmap_helper_device_init(struct mmap_helper_region_device *mdev,
- void *cache, size_t cache_size)
-{
- mem_pool_init(&mdev->pool, cache, cache_size);
-}
-
void *mmap_helper_rdev_mmap(const struct region_device *rd, size_t offset,
size_t size)
{
@@ -301,13 +295,13 @@ void *mmap_helper_rdev_mmap(const struct region_device *rd, size_t offset,
mdev = container_of((void *)rd, __typeof__(*mdev), rdev);
- mapping = mem_pool_alloc(&mdev->pool, size);
+ mapping = mem_pool_alloc(mdev->pool, size);
if (mapping == NULL)
return NULL;
if (rd->ops->readat(rd, mapping, offset, size) != size) {
- mem_pool_free(&mdev->pool, mapping);
+ mem_pool_free(mdev->pool, mapping);
return NULL;
}
@@ -320,7 +314,7 @@ int mmap_helper_rdev_munmap(const struct region_device *rd, void *mapping)
mdev = container_of((void *)rd, __typeof__(*mdev), rdev);
- mem_pool_free(&mdev->pool, mapping);
+ mem_pool_free(mdev->pool, mapping);
return 0;
}
diff --git a/src/drivers/spi/cbfs_spi.c b/src/drivers/spi/cbfs_spi.c
index 0034460b98..7e648a34ce 100644
--- a/src/drivers/spi/cbfs_spi.c
+++ b/src/drivers/spi/cbfs_spi.c
@@ -7,6 +7,7 @@
*/
#include <boot_device.h>
+#include <cbfs.h>
#include <console/console.h>
#include <spi_flash.h>
#include <symbols.h>
@@ -77,21 +78,7 @@ static const struct region_device_ops spi_ops = {
};
static struct mmap_helper_region_device mdev =
- MMAP_HELPER_REGION_INIT(&spi_ops, 0, CONFIG_ROM_SIZE);
-
-static void switch_to_postram_cache(int unused)
-{
- /*
- * Call boot_device_init() to ensure spi_flash is initialized before
- * backing mdev with postram cache. This prevents the mdev backing from
- * being overwritten if spi_flash was not accessed before dram was up.
- */
- boot_device_init();
- if (_preram_cbfs_cache != _postram_cbfs_cache)
- mmap_helper_device_init(&mdev, _postram_cbfs_cache,
- REGION_SIZE(postram_cbfs_cache));
-}
-ROMSTAGE_CBMEM_INIT_HOOK(switch_to_postram_cache);
+ MMAP_HELPER_DEV_INIT(&spi_ops, 0, CONFIG_ROM_SIZE, &cbfs_cache);
void boot_device_init(void)
{
@@ -105,8 +92,6 @@ void boot_device_init(void)
return;
spi_flash_init_done = true;
-
- mmap_helper_device_init(&mdev, _cbfs_cache, REGION_SIZE(cbfs_cache));
}
/* Return the CBFS boot device. */
diff --git a/src/include/cbfs.h b/src/include/cbfs.h
index e08af56399..426757d3f5 100644
--- a/src/include/cbfs.h
+++ b/src/include/cbfs.h
@@ -5,6 +5,7 @@
#include <cbmem.h>
#include <commonlib/cbfs.h>
+#include <commonlib/mem_pool.h>
#include <program_loading.h>
#include <types.h>
#include <vb2_sha.h>
@@ -26,7 +27,7 @@ static inline void *cbfs_ro_map(const char *name, size_t *size_out);
/* Removes a previously allocated CBFS mapping. Should try to unmap mappings in strict LIFO
order where possible, since mapping backends often don't support more complicated cases. */
-int cbfs_unmap(void *mapping);
+void cbfs_unmap(void *mapping);
/* Load a file from CBFS into a buffer. Returns amount of loaded bytes on success or 0 on error.
File will get decompressed as necessary. */
@@ -38,11 +39,22 @@ static inline size_t cbfs_ro_load(const char *name, void *buf, size_t buf_size);
/* Load stage into memory filling in prog. Return 0 on success. < 0 on error. */
int cbfs_prog_stage_load(struct prog *prog);
+
/**********************************************************************************************
* BOOT DEVICE HELPER APIs *
**********************************************************************************************/
/*
+ * The shared memory pool for backing mapped CBFS files, and other CBFS allocation needs.
+ * On x86 platforms, this would only be needed to transparently map compressed files, but it
+ * would require a permanent CBMEM carveout to be safe to use during S3 resume. Since it's not
+ * clear whether this feature is necessary or worth the wasted memory, it is currently disabled
+ * but could be added behind a Kconfig later if desired.
+ */
+#define CBFS_CACHE_AVAILABLE (!CONFIG(ARCH_X86))
+extern struct mem_pool cbfs_cache;
+
+/*
* Data structure that represents "a" CBFS boot device, with optional metadata cache. Generally
* we only have one of these, or two (RO and RW) when CONFIG(VBOOT) is set. The region device
* stored here must always be a subregion of boot_device_ro().
@@ -95,6 +107,7 @@ void *cbfs_boot_map_optionrom_revision(uint16_t vendor, uint16_t device, uint8_t
size_t cbfs_load_and_decompress(const struct region_device *rdev, size_t offset,
size_t in_size, void *buffer, size_t buffer_size, uint32_t compression);
+
/**********************************************************************************************
* INTERNAL HELPERS FOR INLINES, DO NOT USE. *
**********************************************************************************************/
diff --git a/src/include/symbols.h b/src/include/symbols.h
index fe449d9b4f..3e4694b90d 100644
--- a/src/include/symbols.h
+++ b/src/include/symbols.h
@@ -32,9 +32,9 @@ DECLARE_OPTIONAL_REGION(timestamp)
DECLARE_REGION(preram_cbmem_console)
DECLARE_REGION(cbmem_init_hooks)
DECLARE_REGION(stack)
-DECLARE_REGION(preram_cbfs_cache)
-DECLARE_REGION(postram_cbfs_cache)
-DECLARE_REGION(cbfs_cache)
+DECLARE_OPTIONAL_REGION(preram_cbfs_cache)
+DECLARE_OPTIONAL_REGION(postram_cbfs_cache)
+DECLARE_OPTIONAL_REGION(cbfs_cache)
DECLARE_REGION(cbfs_mcache)
DECLARE_REGION(fmap_cache)
DECLARE_REGION(tpm_tcpa_log)
diff --git a/src/lib/cbfs.c b/src/lib/cbfs.c
index fa6c2e3021..93dbb681aa 100644
--- a/src/lib/cbfs.c
+++ b/src/lib/cbfs.c
@@ -18,6 +18,18 @@
#include <symbols.h>
#include <timestamp.h>
+#if CBFS_CACHE_AVAILABLE
+struct mem_pool cbfs_cache = MEM_POOL_INIT(_cbfs_cache, REGION_SIZE(cbfs_cache));
+
+static void switch_to_postram_cache(int unused)
+{
+ if (_preram_cbfs_cache != _postram_cbfs_cache)
+ mem_pool_init(&cbfs_cache, _postram_cbfs_cache,
+ REGION_SIZE(postram_cbfs_cache));
+}
+ROMSTAGE_CBMEM_INIT_HOOK(switch_to_postram_cache);
+#endif
+
cb_err_t cbfs_boot_lookup(const char *name, bool force_ro,
union cbfs_mdata *mdata, struct region_device *rdev)
{
@@ -101,14 +113,48 @@ void *_cbfs_map(const char *name, size_t *size_out, bool force_ro)
if (size_out != NULL)
*size_out = region_device_sz(&rdev);
- return rdev_mmap_full(&rdev);
+ uint32_t compression = CBFS_COMPRESS_NONE;
+ const struct cbfs_file_attr_compression *attr = cbfs_find_attr(&mdata,
+ CBFS_FILE_ATTR_TAG_COMPRESSION, sizeof(*attr));
+ if (attr)
+ compression = be32toh(attr->compression);
+
+ if (compression == CBFS_COMPRESS_NONE)
+ return rdev_mmap_full(&rdev);
+
+ if (!CBFS_CACHE_AVAILABLE) {
+ ERROR("Cannot map compressed file %s on x86\n", mdata.h.filename);
+ return NULL;
+ }
+
+ size_t size = be32toh(attr->decompressed_size);
+ void *buf = mem_pool_alloc(&cbfs_cache, size);
+ if (!buf) {
+ ERROR("CBFS cache out of memory when mapping %s\n", mdata.h.filename);
+ return NULL;
+ }
+
+ size = cbfs_load_and_decompress(&rdev, 0, region_device_sz(&rdev), buf, size,
+ compression);
+ if (!size)
+ return NULL;
+
+ if (size_out != NULL)
+ *size_out = size;
+ return buf;
}
-int cbfs_unmap(void *mapping)
+void cbfs_unmap(void *mapping)
{
- /* This works because munmap() only works on the root rdev and never cares about which
- chained subregion something was mapped from. */
- return rdev_munmap(boot_device_ro(), mapping);
+ /*
+ * This is save to call with mappings that weren't allocated in the cache (e.g. x86
+ * direct mappings) -- mem_pool_free() just does nothing for addresses it doesn't
+ * recognize. This hardcodes the assumption that if platforms implement an rdev_mmap()
+ * that requires a free() for the boot_device, they need to implement it via the
+ * cbfs_cache mem_pool.
+ */
+ if (CBFS_CACHE_AVAILABLE)
+ mem_pool_free(&cbfs_cache, mapping);
}
int cbfs_locate_file_in_region(struct cbfsf *fh, const char *region_name,
@@ -158,6 +204,9 @@ static inline bool cbfs_lz4_enabled(void)
if ((ENV_BOOTBLOCK || ENV_SEPARATE_VERSTAGE) && !CONFIG(COMPRESS_PRERAM_STAGES))
return false;
+ if (ENV_SMM)
+ return false;
+
return true;
}
@@ -174,6 +223,8 @@ static inline bool cbfs_lzma_enabled(void)
return false;
if ((ENV_ROMSTAGE || ENV_POSTCAR) && !CONFIG(COMPRESS_RAMSTAGE))
return false;
+ if (ENV_SMM)
+ return false;
return true;
}
diff --git a/src/mainboard/sifive/hifive-unleashed/media.c b/src/mainboard/sifive/hifive-unleashed/media.c
index 2ff375ae29..f3dcf7f621 100644
--- a/src/mainboard/sifive/hifive-unleashed/media.c
+++ b/src/mainboard/sifive/hifive-unleashed/media.c
@@ -1,6 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <boot_device.h>
+#include <cbfs.h>
#include <symbols.h>
#include <device/mmio.h>
#include <soc/addressmap.h>
@@ -42,7 +43,7 @@ static const struct region_device_ops unleashed_sd_ops = {
};
static struct mmap_helper_region_device sd_mdev =
- MMAP_HELPER_REGION_INIT(&unleashed_sd_ops, 0, CONFIG_ROM_SIZE);
+ MMAP_HELPER_DEV_INIT(&unleashed_sd_ops, 0, CONFIG_ROM_SIZE, &cbfs_cache);
const struct region_device *boot_device_ro(void)
{
@@ -79,8 +80,6 @@ void boot_device_init(void)
}
if (MSEL_SPI2SD(m)) {
spi_sdcard_init(&card, 2, 0);
- mmap_helper_device_init(&sd_mdev,
- _cbfs_cache, REGION_SIZE(cbfs_cache));
return;
}
die("Wrong configuration of MSEL\n");
diff --git a/src/soc/samsung/exynos5250/spi.c b/src/soc/samsung/exynos5250/spi.c
index e630090852..c7e07071c0 100644
--- a/src/soc/samsung/exynos5250/spi.c
+++ b/src/soc/samsung/exynos5250/spi.c
@@ -2,6 +2,8 @@
#include <device/mmio.h>
#include <assert.h>
+#include <boot_device.h>
+#include <cbfs.h>
#include <commonlib/region.h>
#include <console/console.h>
#include <soc/clk.h>
@@ -160,13 +162,11 @@ static const struct region_device_ops exynos_spi_ops = {
};
static struct mmap_helper_region_device mdev =
- MMAP_HELPER_REGION_INIT(&exynos_spi_ops, 0, CONFIG_ROM_SIZE);
+ MMAP_HELPER_DEV_INIT(&exynos_spi_ops, 0, CONFIG_ROM_SIZE, &cbfs_cache);
void exynos_init_spi_boot_device(void)
{
boot_slave_regs = (void *)EXYNOS5_SPI1_BASE;
-
- mmap_helper_device_init(&mdev, _cbfs_cache, REGION_SIZE(cbfs_cache));
}
const struct region_device *exynos_spi_boot_device(void)
diff --git a/src/soc/samsung/exynos5420/spi.c b/src/soc/samsung/exynos5420/spi.c
index 0a2f0275ac..2fe9d5cf18 100644
--- a/src/soc/samsung/exynos5420/spi.c
+++ b/src/soc/samsung/exynos5420/spi.c
@@ -2,6 +2,7 @@
#include <device/mmio.h>
#include <assert.h>
+#include <cbfs.h>
#include <console/console.h>
#include <soc/cpu.h>
#include <soc/spi.h>
@@ -268,13 +269,11 @@ static const struct region_device_ops exynos_spi_ops = {
};
static struct mmap_helper_region_device mdev =
- MMAP_HELPER_REGION_INIT(&exynos_spi_ops, 0, CONFIG_ROM_SIZE);
+ MMAP_HELPER_DEV_INIT(&exynos_spi_ops, 0, CONFIG_ROM_SIZE, &cbfs_cache);
void exynos_init_spi_boot_device(void)
{
boot_slave = &exynos_spi_slaves[1];
-
- mmap_helper_device_init(&mdev, _cbfs_cache, REGION_SIZE(cbfs_cache));
}
const struct region_device *exynos_spi_boot_device(void)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 13:10:26 +0000