Commit Graph

2 Commits

Author SHA1 Message Date
Brian Masney
bfcb7e1555 soc: qcom: ocmem: add missing includes
The kbuild bot reported the following compiler errors when compiling on
MIPS with CONFIG_QCOM_OCMEM disabled:

  In file included from <command-line>:0:0:
  >> include/soc/qcom/ocmem.h:43:49: warning: 'struct device' declared
     inside parameter list will not be visible outside of this
     definition or declaration
      static inline struct ocmem *of_get_ocmem(struct device *dev)
                                                      ^~~~~~
     include/soc/qcom/ocmem.h: In function 'of_get_ocmem':
  >> include/soc/qcom/ocmem.h:45:9: error: implicit declaration of
     function 'ERR_PTR' [-Werror=implicit-function-declaration]
       return ERR_PTR(-ENODEV);
              ^~~~~~~
  >> include/soc/qcom/ocmem.h:45:18: error: 'ENODEV' undeclared (first
     use in this function)
       return ERR_PTR(-ENODEV);

Add the proper includes to fix the compiler errors.

Signed-off-by: Brian Masney <masneyb@onstation.org>
Reported-by: kbuild test robot <lkp@intel.com>
Tested-by: Gabriel Francisco <frc.gabriel@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2019-10-07 08:19:43 -07:00
Brian Masney
88c1e9404f 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>
2019-10-07 08:17:33 -07:00