diff options
| author | Christian König <christian.koenig@amd.com> | 2014-06-05 23:47:32 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-06-09 22:06:53 -0400 |
| commit | c1c4413258e46aef9c27696052a5b7110bdf2941 (patch) | |
| tree | d6ecbaf532b0886b7269d5679732853baf7ff0f4 /drivers/gpu/drm/radeon/radeon_device.c | |
| parent | ce6758c8bd36bd77519f8f1ace46f8f1ba5decaf (diff) | |
drm/radeon: make VM size a module parameter (v2)
v2: agd5f: simplify patch
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_device.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_device.c | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 31565de1116c..3f1e3060377c 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -1052,6 +1052,27 @@ static void radeon_check_arguments(struct radeon_device *rdev) radeon_agpmode = 0; break; } + + if (!radeon_check_pot_argument(radeon_vm_size)) { + dev_warn(rdev->dev, "VM size (%d) must be a power of 2\n", + radeon_vm_size); + radeon_vm_size = 4096; + } + + if (radeon_vm_size < 4) { + dev_warn(rdev->dev, "VM size (%d) to small, min is 4MB\n", + radeon_vm_size); + radeon_vm_size = 4096; + } + + /* + * Max GPUVM size for Cayman, SI and CI are 40 bits. + */ + if (radeon_vm_size > 1024*1024) { + dev_warn(rdev->dev, "VM size (%d) to large, max is 1TB\n", + radeon_vm_size); + radeon_vm_size = 4096; + } } /** @@ -1197,17 +1218,16 @@ int radeon_device_init(struct radeon_device *rdev, if (r) return r; + radeon_check_arguments(rdev); /* Adjust VM size here. - * Currently set to 4GB ((1 << 20) 4k pages). - * Max GPUVM size for cayman and SI is 40 bits. + * Max GPUVM size for cayman+ is 40 bits. */ - rdev->vm_manager.max_pfn = 1 << 20; + rdev->vm_manager.max_pfn = radeon_vm_size << 8; /* Set asic functions */ r = radeon_asic_init(rdev); if (r) return r; - radeon_check_arguments(rdev); /* all of the newer IGP chips have an internal gart * However some rs4xx report as AGP, so remove that here. |