From 724c80e1d630296d1324859e964d80d35007d83c Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 27 Aug 2010 18:25:25 -0400 Subject: drm/radeon/kms: enable writeback (v2) When writeback is enabled, the GPU shadows writes to certain registers into a buffer in memory. The driver can then read the values from the shadow rather than reading back from the register across the bus. Writeback can be disabled by setting the no_wb module param to 1. On r6xx/r7xx/evergreen, the following registers are shadowed: - CP scratch registers - CP read pointer - IH write pointer On r1xx-rr5xx, the following registers are shadowed: - CP scratch registers - CP read pointer v2: - Combine wb patches for r6xx-evergreen and r1xx-r5xx - Writeback is disabled on AGP boards since it tends to be unreliable on AGP using the gart. - Check radeon_wb_init return values properly. Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_asic.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers/gpu/drm/radeon/radeon_asic.h') diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index a5aff75..6d3b055 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -108,9 +108,6 @@ void r100_irq_disable(struct radeon_device *rdev); void r100_mc_stop(struct radeon_device *rdev, struct r100_mc_save *save); void r100_mc_resume(struct radeon_device *rdev, struct r100_mc_save *save); void r100_vram_init_sizes(struct radeon_device *rdev); -void r100_wb_disable(struct radeon_device *rdev); -void r100_wb_fini(struct radeon_device *rdev); -int r100_wb_init(struct radeon_device *rdev); int r100_cp_reset(struct radeon_device *rdev); void r100_vga_render_disable(struct radeon_device *rdev); void r100_restore_sanity(struct radeon_device *rdev); -- cgit v1.1