On Die, 2012-08-14 at 10:39 -0400, Jerome Glisse wrote:
On Tue, Aug 14, 2012 at 10:36 AM, Michel Dänzer michel@daenzer.net wrote:
On Don, 2012-08-09 at 10:57 -0400, Jerome Glisse wrote:
On Thu, Aug 9, 2012 at 10:34 AM, Marek Olšák maraeo@gmail.com wrote:
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 637280f..be0e320 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -3789,3 +3789,15 @@ static void r600_pcie_gen2_enable(struct radeon_device *rdev) WREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl); } }
+uint64_t r600_get_gpu_clock(struct radeon_device *rdev) +{
uint64_t clock;mutex_lock(&rdev->gpu_clock_mutex);WREG32(RLC_CAPTURE_GPU_CLOCK_COUNT, 1);clock = (uint64_t)RREG32(RLC_GPU_CLOCK_COUNT_LSB) |((uint64_t)RREG32(RLC_GPU_CLOCK_COUNT_MSB) << 32);I keep forgeting about c type rules but i think you want 32ULL
Not sure why that would be needed (or why you'd want it if it's not :).
It's just about type conversion, i have been beat in the past by operation ending up as unsigned with << 32 and of course that means 0 result which is not what you are looking for.
It's the type of the value on the left hand side of '<<' that matters for that.