On 2/10/23 00:38, Mario Limonciello wrote:
Currently the PSP semaphore communication base address is discovered
by using an MSR that is not architecturally guaranteed for future
platforms. Also the mailbox that is utilized for communication with
the PSP may have other consumers in the kernel, so it's better to
make all communication go through a single driver.
Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
---
drivers/i2c/busses/Kconfig | 2 +-
drivers/i2c/busses/i2c-designware-amdpsp.c | 141 +-------------------
drivers/i2c/busses/i2c-designware-core.h | 1 -
drivers/i2c/busses/i2c-designware-platdrv.c | 1 -
include/linux/psp-platform-access.h | 1 +
5 files changed, 9 insertions(+), 137 deletions(-)
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index a7bfddf08fa7b..9e2202ca73ec7 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -566,9 +566,9 @@ config I2C_DESIGNWARE_PLATFORM
config I2C_DESIGNWARE_AMDPSP
bool "AMD PSP I2C semaphore support"
- depends on X86_MSR
depends on ACPI
depends on I2C_DESIGNWARE_PLATFORM
+ depends on CRYPTO_DEV_SP_PSP && !(I2C_DESIGNWARE_PLATFORM=y && CRYPTO_DEV_CCP_DD=m)
help
Would this look better if split? I.e.
depends on CRYPTO_DEV_SP_PSP
depends on !(I2C_DESIGNWARE_PLATFORM=y && CRYPTO_DEV_CCP_DD=m)
