diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/r300.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r300.c | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index 3f2cc9e2e8d..43b55a030b4 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -36,7 +36,15 @@ #include "rv350d.h" #include "r300_reg_safe.h" -/* This files gather functions specifics to: r300,r350,rv350,rv370,rv380 */ +/* This files gather functions specifics to: r300,r350,rv350,rv370,rv380 + * + * GPU Errata: + * - HOST_PATH_CNTL: r300 family seems to dislike write to HOST_PATH_CNTL + * using MMIO to flush host path read cache, this lead to HARDLOCKUP. + * However, scheduling such write to the ring seems harmless, i suspect + * the CP read collide with the flush somehow, or maybe the MC, hard to + * tell. (Jerome Glisse) + */ /* * rv370,rv380 PCIE GART @@ -178,6 +186,11 @@ void r300_fence_ring_emit(struct radeon_device *rdev, /* Wait until IDLE & CLEAN */ radeon_ring_write(rdev, PACKET0(0x1720, 0)); radeon_ring_write(rdev, (1 << 17) | (1 << 16) | (1 << 9)); + radeon_ring_write(rdev, PACKET0(RADEON_HOST_PATH_CNTL, 0)); + radeon_ring_write(rdev, rdev->config.r300.hdp_cntl | + RADEON_HDP_READ_BUFFER_INVALIDATE); + radeon_ring_write(rdev, PACKET0(RADEON_HOST_PATH_CNTL, 0)); + radeon_ring_write(rdev, rdev->config.r300.hdp_cntl); /* Emit fence sequence & fire IRQ */ radeon_ring_write(rdev, PACKET0(rdev->fence_drv.scratch_reg, 0)); radeon_ring_write(rdev, fence->seq); @@ -493,11 +506,14 @@ void r300_vram_info(struct radeon_device *rdev) /* DDR for all card after R300 & IGP */ rdev->mc.vram_is_ddr = true; + tmp = RREG32(RADEON_MEM_CNTL); - if (tmp & R300_MEM_NUM_CHANNELS_MASK) { - rdev->mc.vram_width = 128; - } else { - rdev->mc.vram_width = 64; + tmp &= R300_MEM_NUM_CHANNELS_MASK; + switch (tmp) { + case 0: rdev->mc.vram_width = 64; break; + case 1: rdev->mc.vram_width = 128; break; + case 2: rdev->mc.vram_width = 256; break; + default: rdev->mc.vram_width = 128; break; } r100_vram_init_sizes(rdev); @@ -1258,6 +1274,7 @@ static int r300_startup(struct radeon_device *rdev) } /* Enable IRQ */ r100_irq_set(rdev); + rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL); /* 1M ring buffer */ r = r100_cp_init(rdev, 1024 * 1024); if (r) { @@ -1313,7 +1330,6 @@ int r300_suspend(struct radeon_device *rdev) void r300_fini(struct radeon_device *rdev) { - r300_suspend(rdev); r100_cp_fini(rdev); r100_wb_fini(rdev); r100_ib_fini(rdev); @@ -1322,6 +1338,7 @@ void r300_fini(struct radeon_device *rdev) rv370_pcie_gart_fini(rdev); if (rdev->flags & RADEON_IS_PCI) r100_pci_gart_fini(rdev); + radeon_agp_fini(rdev); radeon_irq_kms_fini(rdev); radeon_fence_driver_fini(rdev); radeon_bo_fini(rdev); @@ -1403,15 +1420,15 @@ int r300_init(struct radeon_device *rdev) if (r) { /* Somethings want wront with the accel init stop accel */ dev_err(rdev->dev, "Disabling GPU acceleration\n"); - r300_suspend(rdev); r100_cp_fini(rdev); r100_wb_fini(rdev); r100_ib_fini(rdev); + radeon_irq_kms_fini(rdev); if (rdev->flags & RADEON_IS_PCIE) rv370_pcie_gart_fini(rdev); if (rdev->flags & RADEON_IS_PCI) r100_pci_gart_fini(rdev); - radeon_irq_kms_fini(rdev); + radeon_agp_fini(rdev); rdev->accel_working = false; } return 0; |