From: Pauli Nieminen Date: Wed, 10 Feb 2010 22:10:33 +0000 (+0200) Subject: drm/radeon: Skip dma copy test in benchmark if card doesn't have dma engine. X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c60a284cc41f9989391706e113d30b4f27dbe3e0;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git drm/radeon: Skip dma copy test in benchmark if card doesn't have dma engine. radeon_copy_dma is only available for r200 or newer cards. Call to radeon_copy_dma would result to NULL pointer dereference if benchmarking asic without dma engine. Signed-off-by: Pauli Nieminen Signed-off-by: Dave Airlie --- diff --git a/drivers/gpu/drm/radeon/radeon_benchmark.c b/drivers/gpu/drm/radeon/radeon_benchmark.c index 4ddfd4b5bc51..7932dc4d6b90 100644 --- a/drivers/gpu/drm/radeon/radeon_benchmark.c +++ b/drivers/gpu/drm/radeon/radeon_benchmark.c @@ -65,31 +65,42 @@ void radeon_benchmark_move(struct radeon_device *rdev, unsigned bsize, if (r) { goto out_cleanup; } - start_jiffies = jiffies; - for (i = 0; i < n; i++) { - r = radeon_fence_create(rdev, &fence); - if (r) { - goto out_cleanup; + + /* r100 doesn't have dma engine so skip the test */ + if (rdev->asic->copy_dma) { + + start_jiffies = jiffies; + for (i = 0; i < n; i++) { + r = radeon_fence_create(rdev, &fence); + if (r) { + goto out_cleanup; + } + + r = radeon_copy_dma(rdev, saddr, daddr, + size / RADEON_GPU_PAGE_SIZE, fence); + + if (r) { + goto out_cleanup; + } + r = radeon_fence_wait(fence, false); + if (r) { + goto out_cleanup; + } + radeon_fence_unref(&fence); } - r = radeon_copy_dma(rdev, saddr, daddr, size / RADEON_GPU_PAGE_SIZE, fence); - if (r) { - goto out_cleanup; + end_jiffies = jiffies; + time = end_jiffies - start_jiffies; + time = jiffies_to_msecs(time); + if (time > 0) { + i = ((n * size) >> 10) / time; + printk(KERN_INFO "radeon: dma %u bo moves of %ukb from" + " %d to %d in %lums (%ukb/ms %ukb/s %uM/s)\n", + n, size >> 10, + sdomain, ddomain, time, + i, i * 1000, (i * 1000) / 1024); } - r = radeon_fence_wait(fence, false); - if (r) { - goto out_cleanup; - } - radeon_fence_unref(&fence); - } - end_jiffies = jiffies; - time = end_jiffies - start_jiffies; - time = jiffies_to_msecs(time); - if (time > 0) { - i = ((n * size) >> 10) / time; - printk(KERN_INFO "radeon: dma %u bo moves of %ukb from %d to %d" - " in %lums (%ukb/ms %ukb/s %uM/s)\n", n, size >> 10, - sdomain, ddomain, time, i, i * 1000, (i * 1000) / 1024); } + start_jiffies = jiffies; for (i = 0; i < n; i++) { r = radeon_fence_create(rdev, &fence);