[PATCH AUTOSEL 6.5 11/37] drm/amd: Update `update_pcie_parameters` functions to use uint8_t arguments

From: Sasha Levin
Date: Tue Nov 07 2023 - 07:36:55 EST


From: Mario Limonciello <mario.limonciello@xxxxxxx>

[ Upstream commit 7752ccf85b929a22e658ec145283e8f31232f4bb ]

The matching values for `pcie_gen_cap` and `pcie_width_cap` when
fetched from powerplay tables are 1 byte, so narrow the arguments
to match to ensure min() and max() comparisons without casts.

Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
Acked-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 2 +-
drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h | 2 +-
drivers/gpu/drm/amd/pm/swsmu/inc/smu_v13_0.h | 4 ++--
drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c | 4 ++--
drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 8 ++++----
drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c | 4 ++--
6 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 222af2fae7458..16c03771c1239 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -1232,7 +1232,7 @@ static int smu_smc_hw_setup(struct smu_context *smu)
{
struct smu_feature *feature = &smu->smu_feature;
struct amdgpu_device *adev = smu->adev;
- uint32_t pcie_gen = 0, pcie_width = 0;
+ uint8_t pcie_gen = 0, pcie_width = 0;
uint64_t features_supported;
int ret = 0;

diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
index 6e2069dcb6b9d..d1d7713b97794 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
@@ -856,7 +856,7 @@ struct pptable_funcs {
* &pcie_gen_cap: Maximum allowed PCIe generation.
* &pcie_width_cap: Maximum allowed PCIe width.
*/
- int (*update_pcie_parameters)(struct smu_context *smu, uint32_t pcie_gen_cap, uint32_t pcie_width_cap);
+ int (*update_pcie_parameters)(struct smu_context *smu, uint8_t pcie_gen_cap, uint8_t pcie_width_cap);

/**
* @i2c_init: Initialize i2c.
diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_v13_0.h b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_v13_0.h
index 355c156d871af..cc02f979e9e98 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_v13_0.h
+++ b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_v13_0.h
@@ -296,8 +296,8 @@ int smu_v13_0_get_pptable_from_firmware(struct smu_context *smu,
uint32_t pptable_id);

int smu_v13_0_update_pcie_parameters(struct smu_context *smu,
- uint32_t pcie_gen_cap,
- uint32_t pcie_width_cap);
+ uint8_t pcie_gen_cap,
+ uint8_t pcie_width_cap);

#endif
#endif
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
index 95f6d821bacbc..addaa69119b8e 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
@@ -2375,8 +2375,8 @@ static int navi10_get_power_limit(struct smu_context *smu,
}

static int navi10_update_pcie_parameters(struct smu_context *smu,
- uint32_t pcie_gen_cap,
- uint32_t pcie_width_cap)
+ uint8_t pcie_gen_cap,
+ uint8_t pcie_width_cap)
{
struct smu_11_0_dpm_context *dpm_context = smu->smu_dpm.dpm_context;
PPTable_t *pptable = smu->smu_table.driver_pptable;
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
index 9119b0df2419f..9a5f3d31e7780 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
@@ -2084,14 +2084,14 @@ static int sienna_cichlid_display_disable_memory_clock_switch(struct smu_context
#define MAX(a, b) ((a) > (b) ? (a) : (b))

static int sienna_cichlid_update_pcie_parameters(struct smu_context *smu,
- uint32_t pcie_gen_cap,
- uint32_t pcie_width_cap)
+ uint8_t pcie_gen_cap,
+ uint8_t pcie_width_cap)
{
struct smu_11_0_dpm_context *dpm_context = smu->smu_dpm.dpm_context;
struct smu_11_0_pcie_table *pcie_table = &dpm_context->dpm_tables.pcie_table;
uint8_t *table_member1, *table_member2;
- uint32_t min_gen_speed, max_gen_speed;
- uint32_t min_lane_width, max_lane_width;
+ uint8_t min_gen_speed, max_gen_speed;
+ uint8_t min_lane_width, max_lane_width;
uint32_t smu_pcie_arg;
int ret, i;

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
index 9b62b45ebb7f0..4fa94f583b87c 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
@@ -2426,8 +2426,8 @@ int smu_v13_0_mode1_reset(struct smu_context *smu)
}

int smu_v13_0_update_pcie_parameters(struct smu_context *smu,
- uint32_t pcie_gen_cap,
- uint32_t pcie_width_cap)
+ uint8_t pcie_gen_cap,
+ uint8_t pcie_width_cap)
{
struct smu_13_0_dpm_context *dpm_context = smu->smu_dpm.dpm_context;
struct smu_13_0_pcie_table *pcie_table =
--
2.42.0