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drm/amd/powerplay: add interface to allocate memory pool (v2)

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This patch adds interface to allocate memory pool for smu.
This memory pool will be used for SMC use and msg SetSystemVirtualDramAddr and
DramLogSetDramAddr can notify it changed.

v2: add detailed info to describe this function

Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Huang Rui 2018-12-05 11:41:33 +08:00 committed by Alex Deucher
parent 206bc589ed
commit e65d45f2c7
1 changed files with 19 additions and 0 deletions
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19
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
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@ -216,6 +216,21 @@ static int smu_smc_table_hw_init(struct smu_context *smu)
return ret;
}
/**
* smu_alloc_memory_pool - allocate memory pool in the system memory
*
* @smu: amdgpu_device pointer
*
* This memory pool will be used for SMC use and msg SetSystemVirtualDramAddr
* and DramLogSetDramAddr can notify it changed.
*
* Returns 0 on success, error on failure.
*/
static int smu_alloc_memory_pool(struct smu_context *smu)
{
return 0;
}
static int smu_hw_init(void *handle)
{
int ret;
@ -243,6 +258,10 @@ static int smu_hw_init(void *handle)
if (ret)
goto failed;
ret = smu_alloc_memory_pool(smu);
if (ret)
goto failed;
mutex_unlock(&smu->mutex);
pr_info("SMU is initialized successfully!\n");