diff options
| -rw-r--r-- | arch/sandbox/dts/test.dts | 4 | ||||
| -rw-r--r-- | arch/x86/lib/acpi_table.c | 9 | ||||
| -rw-r--r-- | drivers/core/acpi.c | 62 | ||||
| -rw-r--r-- | include/acpi/acpi_table.h | 10 | ||||
| -rw-r--r-- | include/dm/acpi.h | 30 | ||||
| -rw-r--r-- | lib/acpi/acpi_table.c | 13 | ||||
| -rw-r--r-- | test/dm/acpi.c | 74 |
7 files changed, 187 insertions, 15 deletions
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts index df9f1835c9e..4bccfbe6e1b 100644 --- a/arch/sandbox/dts/test.dts +++ b/arch/sandbox/dts/test.dts @@ -226,6 +226,10 @@ compatible = "denx,u-boot-acpi-test"; }; + acpi-test2 { + compatible = "denx,u-boot-acpi-test"; + }; + clocks { clk_fixed: clk-fixed { compatible = "fixed-clock"; diff --git a/arch/x86/lib/acpi_table.c b/arch/x86/lib/acpi_table.c index 9346e165d89..235fc2268bf 100644 --- a/arch/x86/lib/acpi_table.c +++ b/arch/x86/lib/acpi_table.c @@ -60,15 +60,6 @@ static void acpi_write_rsdp(struct acpi_rsdp *rsdp, struct acpi_rsdt *rsdt, sizeof(struct acpi_rsdp)); } -void acpi_fill_header(struct acpi_table_header *header, char *signature) -{ - memcpy(header->signature, signature, 4); - memcpy(header->oem_id, OEM_ID, 6); - memcpy(header->oem_table_id, OEM_TABLE_ID, 8); - header->oem_revision = U_BOOT_BUILD_DATE; - memcpy(header->aslc_id, ASLC_ID, 4); -} - static void acpi_write_rsdt(struct acpi_rsdt *rsdt) { struct acpi_table_header *header = &(rsdt->header); diff --git a/drivers/core/acpi.c b/drivers/core/acpi.c index ba50d688fef..e09905cf2a0 100644 --- a/drivers/core/acpi.c +++ b/drivers/core/acpi.c @@ -11,8 +11,17 @@ #include <common.h> #include <dm.h> #include <dm/acpi.h> +#include <dm/device-internal.h> #include <dm/root.h> +/* Type of method to call */ +enum method_t { + METHOD_WRITE_TABLES, +}; + +/* Prototype for all methods */ +typedef int (*acpi_method)(const struct udevice *dev, struct acpi_ctx *ctx); + int acpi_copy_name(char *out_name, const char *name) { strncpy(out_name, name, ACPI_NAME_LEN); @@ -31,3 +40,56 @@ int acpi_get_name(const struct udevice *dev, char *out_name) return -ENOSYS; } + +acpi_method acpi_get_method(struct udevice *dev, enum method_t method) +{ + struct acpi_ops *aops; + + aops = device_get_acpi_ops(dev); + if (aops) { + switch (method) { + case METHOD_WRITE_TABLES: + return aops->write_tables; + } + } + + return NULL; +} + +int acpi_recurse_method(struct acpi_ctx *ctx, struct udevice *parent, + enum method_t method) +{ + struct udevice *dev; + acpi_method func; + int ret; + + func = acpi_get_method(parent, method); + if (func) { + log_debug("\n"); + log_debug("- %s %p\n", parent->name, func); + ret = device_ofdata_to_platdata(parent); + if (ret) + return log_msg_ret("ofdata", ret); + ret = func(parent, ctx); + if (ret) + return log_msg_ret("func", ret); + } + device_foreach_child(dev, parent) { + ret = acpi_recurse_method(ctx, dev, method); + if (ret) + return log_msg_ret("recurse", ret); + } + + return 0; +} + +int acpi_write_dev_tables(struct acpi_ctx *ctx) +{ + int ret; + + log_debug("Writing device tables\n"); + ret = acpi_recurse_method(ctx, dm_root(), METHOD_WRITE_TABLES); + log_debug("Writing finished, err=%d\n", ret); + + return ret; +} diff --git a/include/acpi/acpi_table.h b/include/acpi/acpi_table.h index 194be9aa589..a2bd929c920 100644 --- a/include/acpi/acpi_table.h +++ b/include/acpi/acpi_table.h @@ -505,6 +505,16 @@ int acpi_get_table_revision(enum acpi_tables table); */ int acpi_create_dmar(struct acpi_dmar *dmar, enum dmar_flags flags); +/** + * acpi_fill_header() - Set up a new table header + * + * This sets all fields except length, revision, checksum and aslc_revision + * + * @header: ACPI header to update + * @signature: Table signature to use (4 characters) + */ +void acpi_fill_header(struct acpi_table_header *header, char *signature); + #endif /* !__ACPI__*/ #include <asm/acpi_table.h> diff --git a/include/dm/acpi.h b/include/dm/acpi.h index 49257914ffd..69d69d7f423 100644 --- a/include/dm/acpi.h +++ b/include/dm/acpi.h @@ -25,6 +25,17 @@ #if !defined(__ACPI__) /** + * struct acpi_ctx - Context used for writing ACPI tables + * + * This contains a few useful pieces of information used when writing + * + * @current: Current address for writing + */ +struct acpi_ctx { + void *current; +}; + +/** * struct acpi_ops - ACPI operations supported by driver model */ struct acpi_ops { @@ -38,6 +49,15 @@ struct acpi_ops { * other error */ int (*get_name)(const struct udevice *dev, char *out_name); + + /** + * write_tables() - Write out any tables required by this device + * + * @dev: Device to write + * @ctx: ACPI context to use + * @return 0 if OK, -ve on error + */ + int (*write_tables)(const struct udevice *dev, struct acpi_ctx *ctx); }; #define device_get_acpi_ops(dev) ((dev)->driver->acpi_ops) @@ -72,6 +92,16 @@ int acpi_get_name(const struct udevice *dev, char *out_name); */ int acpi_copy_name(char *out_name, const char *name); +/** + * acpi_write_dev_tables() - Write ACPI tables required by devices + * + * This scans through all devices and tells them to write any tables they want + * to write. + * + * @return 0 if OK, -ve if any device returned an error + */ +int acpi_write_dev_tables(struct acpi_ctx *ctx); + #endif /* __ACPI__ */ #endif diff --git a/lib/acpi/acpi_table.c b/lib/acpi/acpi_table.c index 4633dcb9488..372f19b16d5 100644 --- a/lib/acpi/acpi_table.c +++ b/lib/acpi/acpi_table.c @@ -9,9 +9,8 @@ #include <acpi/acpi_table.h> #include <dm.h> #include <cpu.h> +#include <version.h> -/* Temporary change to ensure bisectability */ -#ifndef CONFIG_SANDBOX int acpi_create_dmar(struct acpi_dmar *dmar, enum dmar_flags flags) { struct acpi_table_header *header = &dmar->header; @@ -37,7 +36,6 @@ int acpi_create_dmar(struct acpi_dmar *dmar, enum dmar_flags flags) return 0; } -#endif int acpi_get_table_revision(enum acpi_tables table) { @@ -91,3 +89,12 @@ int acpi_get_table_revision(enum acpi_tables table) return -EINVAL; } } + +void acpi_fill_header(struct acpi_table_header *header, char *signature) +{ + memcpy(header->signature, signature, 4); + memcpy(header->oem_id, OEM_ID, 6); + memcpy(header->oem_table_id, OEM_TABLE_ID, 8); + header->oem_revision = U_BOOT_BUILD_DATE; + memcpy(header->aslc_id, ASLC_ID, 4); +} diff --git a/test/dm/acpi.c b/test/dm/acpi.c index e7b8abd5569..fb7b7e46b20 100644 --- a/test/dm/acpi.c +++ b/test/dm/acpi.c @@ -8,12 +8,26 @@ #include <common.h> #include <dm.h> +#include <version.h> #include <acpi/acpi_table.h> #include <dm/acpi.h> #include <dm/test.h> #include <test/ut.h> #define ACPI_TEST_DEV_NAME "ABCD" +#define BUF_SIZE 4096 + +static int testacpi_write_tables(const struct udevice *dev, + struct acpi_ctx *ctx) +{ + struct acpi_dmar *dmar; + + dmar = (struct acpi_dmar *)ctx->current; + acpi_create_dmar(dmar, DMAR_INTR_REMAP); + ctx->current += sizeof(struct acpi_dmar); + + return 0; +} static int testacpi_get_name(const struct udevice *dev, char *out_name) { @@ -22,6 +36,7 @@ static int testacpi_get_name(const struct udevice *dev, char *out_name) struct acpi_ops testacpi_ops = { .get_name = testacpi_get_name, + .write_tables = testacpi_write_tables, }; static const struct udevice_id testacpi_ids[] = { @@ -68,8 +83,6 @@ static int dm_test_acpi_get_table_revision(struct unit_test_state *uts) DM_TEST(dm_test_acpi_get_table_revision, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); -/* Temporary change to ensure bisectability */ -#ifndef CONFIG_SANDBOX /* Test acpi_create_dmar() */ static int dm_test_acpi_create_dmar(struct unit_test_state *uts) { @@ -82,4 +95,59 @@ static int dm_test_acpi_create_dmar(struct unit_test_state *uts) return 0; } DM_TEST(dm_test_acpi_create_dmar, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); -#endif + +/* Test acpi_fill_header() */ +static int dm_test_acpi_fill_header(struct unit_test_state *uts) +{ + struct acpi_table_header hdr; + + /* Make sure these 5 fields are not changed */ + hdr.length = 0x11; + hdr.revision = 0x22; + hdr.checksum = 0x33; + hdr.aslc_revision = 0x44; + acpi_fill_header(&hdr, "ABCD"); + + ut_asserteq_mem("ABCD", hdr.signature, sizeof(hdr.signature)); + ut_asserteq(0x11, hdr.length); + ut_asserteq(0x22, hdr.revision); + ut_asserteq(0x33, hdr.checksum); + ut_asserteq_mem(OEM_ID, hdr.oem_id, sizeof(hdr.oem_id)); + ut_asserteq_mem(OEM_TABLE_ID, hdr.oem_table_id, + sizeof(hdr.oem_table_id)); + ut_asserteq(U_BOOT_BUILD_DATE, hdr.oem_revision); + ut_asserteq_mem(ASLC_ID, hdr.aslc_id, sizeof(hdr.aslc_id)); + ut_asserteq(0x44, hdr.aslc_revision); + + return 0; +} +DM_TEST(dm_test_acpi_fill_header, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + +/* Test ACPI write_tables() */ +static int dm_test_acpi_write_tables(struct unit_test_state *uts) +{ + struct acpi_dmar *dmar; + struct acpi_ctx ctx; + void *buf; + + buf = malloc(BUF_SIZE); + ut_assertnonnull(buf); + + ctx.current = buf; + ut_assertok(acpi_write_dev_tables(&ctx)); + dmar = buf; + + /* + * We should have two dmar tables, one for each "denx,u-boot-acpi-test" + * device + */ + ut_asserteq_ptr(dmar + 2, ctx.current); + ut_asserteq(DMAR_INTR_REMAP, dmar->flags); + ut_asserteq(32 - 1, dmar->host_address_width); + + ut_asserteq(DMAR_INTR_REMAP, dmar[1].flags); + ut_asserteq(32 - 1, dmar[1].host_address_width); + + return 0; +} +DM_TEST(dm_test_acpi_write_tables, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); |