BugLink: https://bugs.launchpad.net/bugs/2027957
This helper is used for checking if the connected host supports
the feature, it can be moved into generic code to be used by other
smu implementations as well.
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.1.x
(cherry picked from commit
188623076d0f1a500583d392b6187056bf7cc71a
linux-next)
Signed-off-by: Koba Ko <koba.ko@canonical.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
void amdgpu_device_pci_config_reset(struct amdgpu_device *adev);
int amdgpu_device_pci_reset(struct amdgpu_device *adev);
bool amdgpu_device_need_post(struct amdgpu_device *adev);
+bool amdgpu_device_pcie_dynamic_switching_supported(void);
bool amdgpu_device_should_use_aspm(struct amdgpu_device *adev);
bool amdgpu_device_aspm_support_quirk(void);
return true;
}
+/*
+ * Intel hosts such as Raptor Lake and Sapphire Rapids don't support dynamic
+ * speed switching. Until we have confirmation from Intel that a specific host
+ * supports it, it's safer that we keep it disabled for all.
+ *
+ * https://edc.intel.com/content/www/us/en/design/products/platforms/details/raptor-lake-s/13th-generation-core-processors-datasheet-volume-1-of-2/005/pci-express-support/
+ * https://gitlab.freedesktop.org/drm/amd/-/issues/2663
+ */
+bool amdgpu_device_pcie_dynamic_switching_supported(void)
+{
+#if IS_ENABLED(CONFIG_X86)
+ struct cpuinfo_x86 *c = &cpu_data(0);
+
+ if (c->x86_vendor == X86_VENDOR_INTEL)
+ return false;
+#endif
+ return true;
+}
+
/**
* amdgpu_device_should_use_aspm - check if the device should program ASPM
*
return ret;
}
-/*
- * Intel hosts such as Raptor Lake and Sapphire Rapids don't support dynamic
- * speed switching. Until we have confirmation from Intel that a specific host
- * supports it, it's safer that we keep it disabled for all.
- *
- * https://edc.intel.com/content/www/us/en/design/products/platforms/details/raptor-lake-s/13th-generation-core-processors-datasheet-volume-1-of-2/005/pci-express-support/
- * https://gitlab.freedesktop.org/drm/amd/-/issues/2663
- */
-static bool smu_v13_0_is_pcie_dynamic_switching_supported(void)
-{
-#if IS_ENABLED(CONFIG_X86)
- struct cpuinfo_x86 *c = &cpu_data(0);
-
- if (c->x86_vendor == X86_VENDOR_INTEL)
- return false;
-#endif
- return true;
-}
-
int smu_v13_0_update_pcie_parameters(struct smu_context *smu,
uint32_t pcie_gen_cap,
uint32_t pcie_width_cap)
uint32_t smu_pcie_arg;
int ret, i;
- if (!smu_v13_0_is_pcie_dynamic_switching_supported()) {
+ if (!amdgpu_device_pcie_dynamic_switching_supported()) {
if (pcie_table->pcie_gen[num_of_levels - 1] < pcie_gen_cap)
pcie_gen_cap = pcie_table->pcie_gen[num_of_levels - 1];