diff options
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_device.c | 73 |
1 files changed, 68 insertions, 5 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 14df3ad64f9..7c6848096bc 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -546,9 +546,72 @@ void radeon_agp_disable(struct radeon_device *rdev) } } -/* - * Radeon device. - */ +void radeon_check_arguments(struct radeon_device *rdev) +{ + /* vramlimit must be a power of two */ + switch (radeon_vram_limit) { + case 0: + case 4: + case 8: + case 16: + case 32: + case 64: + case 128: + case 256: + case 512: + case 1024: + case 2048: + case 4096: + break; + default: + dev_warn(rdev->dev, "vram limit (%d) must be a power of 2\n", + radeon_vram_limit); + radeon_vram_limit = 0; + break; + } + radeon_vram_limit = radeon_vram_limit << 20; + /* gtt size must be power of two and greater or equal to 32M */ + switch (radeon_gart_size) { + case 4: + case 8: + case 16: + dev_warn(rdev->dev, "gart size (%d) too small forcing to 512M\n", + radeon_gart_size); + radeon_gart_size = 512; + break; + case 32: + case 64: + case 128: + case 256: + case 512: + case 1024: + case 2048: + case 4096: + break; + default: + dev_warn(rdev->dev, "gart size (%d) must be a power of 2\n", + radeon_gart_size); + radeon_gart_size = 512; + break; + } + rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024; + /* AGP mode can only be -1, 1, 2, 4, 8 */ + switch (radeon_agpmode) { + case -1: + case 0: + case 1: + case 2: + case 4: + case 8: + break; + default: + dev_warn(rdev->dev, "invalid AGP mode %d (valid mode: " + "-1, 0, 1, 2, 4, 8)\n", radeon_agpmode); + radeon_agpmode = 0; + break; + } +} + int radeon_device_init(struct radeon_device *rdev, struct drm_device *ddev, struct pci_dev *pdev, @@ -587,9 +650,9 @@ int radeon_device_init(struct radeon_device *rdev, /* Set asic functions */ r = radeon_asic_init(rdev); - if (r) { + if (r) return r; - } + radeon_check_arguments(rdev); if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) { radeon_agp_disable(rdev); |