On Thu, 2010-09-02 at 21:32 -0400, Alex Deucher wrote:
> These VGT regs need to be programmed via the ring rather than
> MMIO as on previous asics (r6xx/r7xx).
>
So we need someway for userspace to know this has happened, either a
version bump or a change to the info ioctl again.
Dave.
> Signed-off-by: Alex Deucher <alexdeucher@xxxxxxxxx>
> ---
> drivers/gpu/drm/radeon/evergreen.c | 39 +++++++++++++++++++++++++++++++++++-
> drivers/gpu/drm/radeon/r600.c | 5 +---
> 2 files changed, 39 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
> index 875d891..7b81e5c 100644
> --- a/drivers/gpu/drm/radeon/evergreen.c
> +++ b/drivers/gpu/drm/radeon/evergreen.c
> @@ -1110,6 +1110,43 @@ static int evergreen_cp_load_microcode(struct radeon_device *rdev)
> return 0;
> }
>
> +static int evergreen_cp_start(struct radeon_device *rdev)
> +{
> + int r;
> + uint32_t cp_me;
> +
> + r = radeon_ring_lock(rdev, 7);
> + if (r) {
> + DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
> + return r;
> + }
> + radeon_ring_write(rdev, PACKET3(PACKET3_ME_INITIALIZE, 5));
> + radeon_ring_write(rdev, 0x1);
> + radeon_ring_write(rdev, 0x0);
> + radeon_ring_write(rdev, rdev->config.evergreen.max_hw_contexts - 1);
> + radeon_ring_write(rdev, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
> + radeon_ring_write(rdev, 0);
> + radeon_ring_write(rdev, 0);
> + radeon_ring_unlock_commit(rdev);
> +
> + cp_me = 0xff;
> + WREG32(CP_ME_CNTL, cp_me);
> +
> + r = radeon_ring_lock(rdev, 4);
> + if (r) {
> + DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
> + return r;
> + }
> + /* init some VGT regs */
> + radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
> + radeon_ring_write(rdev, (VGT_VERTEX_REUSE_BLOCK_CNTL - PACKET3_SET_CONTEXT_REG_START) >> 2);
> + radeon_ring_write(rdev, 0xe);
> + radeon_ring_write(rdev, 0x10);
> + radeon_ring_unlock_commit(rdev);
> +
> + return 0;
> +}
> +
> int evergreen_cp_resume(struct radeon_device *rdev)
> {
> u32 tmp;
> @@ -1165,7 +1202,7 @@ int evergreen_cp_resume(struct radeon_device *rdev)
> rdev->cp.rptr = RREG32(CP_RB_RPTR);
> rdev->cp.wptr = RREG32(CP_RB_WPTR);
>
> - r600_cp_start(rdev);
> + evergreen_cp_start(rdev);
> rdev->cp.ready = true;
> r = radeon_ring_test(rdev);
> if (r) {
> diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
> index 73e6a1a..f280717 100644
> --- a/drivers/gpu/drm/radeon/r600.c
> +++ b/drivers/gpu/drm/radeon/r600.c
> @@ -2120,10 +2120,7 @@ int r600_cp_start(struct radeon_device *rdev)
> }
> radeon_ring_write(rdev, PACKET3(PACKET3_ME_INITIALIZE, 5));
> radeon_ring_write(rdev, 0x1);
> - if (rdev->family >= CHIP_CEDAR) {
> - radeon_ring_write(rdev, 0x0);
> - radeon_ring_write(rdev, rdev->config.evergreen.max_hw_contexts - 1);
> - } else if (rdev->family >= CHIP_RV770) {
> + if (rdev->family >= CHIP_RV770) {
> radeon_ring_write(rdev, 0x0);
> radeon_ring_write(rdev, rdev->config.rv770.max_hw_contexts - 1);
> } else {
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