gpu: nvgpu: Fixups for tmake build

Mostly just including necessary includes to make sure that
global function declarations actually match their implementations.

Also work around pointer munging warning:

/build/ddpx/linux/kernel/nvgpu/drivers/gpu/nvgpu/common/pmu/pmu.c: In function 'nvgpu_pmu_process_init_msg':
/build/ddpx/linux/kernel/nvgpu/drivers/gpu/nvgpu/common/pmu/pmu.c:348:4: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
    (*(u32 *)gid_data.signature == PMU_SHA1_GID_SIGNATURE);

Work around this warning by simply moving the type punning.
This code is certainly dangerous - it assumes the endianness
of the header data is the same as the machine this code is
running on. Apparently it works, though, so this ignores
the warning.

JIRA NVGPU-525

Change-Id: Id704bae7805440bebfad51c8c8365e6d2b7a39eb
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1692454
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/common/pmu/pmu.c b/drivers/gpu/nvgpu/common/pmu/pmu.c
index aaae138c..c642a7bc 100644
--- a/drivers/gpu/nvgpu/common/pmu/pmu.c
+++ b/drivers/gpu/nvgpu/common/pmu/pmu.c
@@ -338,6 +338,7 @@ int nvgpu_pmu_process_init_msg(struct nvgpu_pmu *pmu,
 
         init = pv->get_pmu_msg_pmu_init_msg_ptr(&(msg->msg.init));
         if (!pmu->gid_info.valid) {
+                u32 *gid_hdr_data = (u32 *)(gid_data.signature);
 
                 nvgpu_flcn_copy_from_dmem(pmu->flcn,
                         pv->get_pmu_init_msg_pmu_sw_mg_off(init),
@@ -345,7 +346,7 @@ int nvgpu_pmu_process_init_msg(struct nvgpu_pmu *pmu,
                         sizeof(struct pmu_sha1_gid_data), 0);
 
                 pmu->gid_info.valid =
-                        (*(u32 *)gid_data.signature == PMU_SHA1_GID_SIGNATURE);
+                        (*gid_hdr_data == PMU_SHA1_GID_SIGNATURE);
 
                 if (pmu->gid_info.valid) {