diff options
| author | Brian Masney <masneyb@onstation.org> | 2019-08-23 05:16:35 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2019-10-07 08:17:33 -0700 |
| commit | 88c1e9404f1deee02e52d13aae3d9ee2cabd66f5 (patch) | |
| tree | e9c34e5c1454850df57eccac460b46520f9f87be /drivers/soc/qcom/Kconfig | |
| parent | 0434a4061471a9afc2b2061add496e58ba4bb92d (diff) | |
soc: qcom: add OCMEM driver
The OCMEM driver handles allocation and configuration of the On Chip
MEMory that is present on some Snapdragon SoCs. Devices which have
OCMEM do not have GMEM inside the GPU core, so the GPU must instead
use OCMEM to be functional. Since the GPU is currently the only OCMEM
user with an upstream driver, this is just a minimal implementation
sufficient for statically allocating to the GPU it's chunk of OCMEM.
This driver currently does not read the gmu-sram node that is described
in the device tree bindings. The starting memory address of the GPU's
reserved memory region is hardcoded to zero to match what the hardware
expects. The driver can be updated to read the reserved memory regions
from device tree once other users of OCMEM are added upstream.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Co-developed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Gabriel Francisco <frc.gabrielgmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/soc/qcom/Kconfig')
| -rw-r--r-- | drivers/soc/qcom/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig index 661e47acc354..adbf3bfae805 100644 --- a/drivers/soc/qcom/Kconfig +++ b/drivers/soc/qcom/Kconfig @@ -74,6 +74,16 @@ config QCOM_MDT_LOADER tristate select QCOM_SCM +config QCOM_OCMEM + tristate "Qualcomm On Chip Memory (OCMEM) driver" + depends on ARCH_QCOM + select QCOM_SCM + help + The On Chip Memory (OCMEM) allocator allows various clients to + allocate memory from OCMEM based on performance, latency and power + requirements. This is typically used by the GPU, camera/video, and + audio components on some Snapdragon SoCs. + config QCOM_PM bool "Qualcomm Power Management" depends on ARCH_QCOM && !ARM64 |