Commit 1294d4a3 authored by Alex Deucher's avatar Alex Deucher

drm/radeon: add a module parameter to disable aspm

Can cause hangs when enabled in certain motherboards.
Set radeon.aspm=0 to disable aspm.
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d1ce3d54
......@@ -5515,6 +5515,9 @@ void evergreen_program_aspm(struct radeon_device *rdev)
*/
bool fusion_platform = false;
if (radeon_aspm == 0)
return;
if (!(rdev->flags & RADEON_IS_PCIE))
return;
......
......@@ -97,6 +97,7 @@ extern int radeon_msi;
extern int radeon_lockup_timeout;
extern int radeon_fastfb;
extern int radeon_dpm;
extern int radeon_aspm;
/*
* Copy from radeon_drv.h so we don't have to include both and have conflicting
......
......@@ -167,6 +167,7 @@ int radeon_msi = -1;
int radeon_lockup_timeout = 10000;
int radeon_fastfb = 0;
int radeon_dpm = -1;
int radeon_aspm = -1;
MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers");
module_param_named(no_wb, radeon_no_wb, int, 0444);
......@@ -225,6 +226,9 @@ module_param_named(fastfb, radeon_fastfb, int, 0444);
MODULE_PARM_DESC(dpm, "DPM support (1 = enable, 0 = disable, -1 = auto)");
module_param_named(dpm, radeon_dpm, int, 0444);
MODULE_PARM_DESC(aspm, "ASPM support (1 = enable, 0 = disable, -1 = auto)");
module_param_named(aspm, radeon_aspm, int, 0444);
static struct pci_device_id pciidlist[] = {
radeon_PCI_IDS
};
......
......@@ -1763,12 +1763,14 @@ void rv6xx_setup_asic(struct radeon_device *rdev)
{
r600_enable_acpi_pm(rdev);
if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_ASPM_L0s)
rv6xx_enable_l0s(rdev);
if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_ASPM_L1)
rv6xx_enable_l1(rdev);
if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_TURNOFFPLL_ASPML1)
rv6xx_enable_pll_sleep_in_l1(rdev);
if (radeon_aspm != 0) {
if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_ASPM_L0s)
rv6xx_enable_l0s(rdev);
if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_ASPM_L1)
rv6xx_enable_l1(rdev);
if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_TURNOFFPLL_ASPML1)
rv6xx_enable_pll_sleep_in_l1(rdev);
}
}
void rv6xx_dpm_display_configuration_changed(struct radeon_device *rdev)
......
......@@ -2099,12 +2099,14 @@ void rv770_dpm_setup_asic(struct radeon_device *rdev)
rv770_enable_acpi_pm(rdev);
if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_ASPM_L0s)
rv770_enable_l0s(rdev);
if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_ASPM_L1)
rv770_enable_l1(rdev);
if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_TURNOFFPLL_ASPML1)
rv770_enable_pll_sleep_in_l1(rdev);
if (radeon_aspm != 0) {
if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_ASPM_L0s)
rv770_enable_l0s(rdev);
if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_ASPM_L1)
rv770_enable_l1(rdev);
if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_TURNOFFPLL_ASPML1)
rv770_enable_pll_sleep_in_l1(rdev);
}
}
void rv770_dpm_display_configuration_changed(struct radeon_device *rdev)
......
......@@ -7053,6 +7053,9 @@ static void si_program_aspm(struct radeon_device *rdev)
bool disable_l0s = false, disable_l1 = false, disable_plloff_in_l1 = false;
bool disable_clkreq = false;
if (radeon_aspm == 0)
return;
if (!(rdev->flags & RADEON_IS_PCIE))
return;
......
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