drm/radeon/radeon_cik.c

8951  * Used for display watermark bandwidth calculations
8983 	u32 yclk;          /* bandwidth per dram data pin in kHz */
8998  * dce8_dram_bandwidth - get the dram bandwidth
9002  * Calculate the raw dram bandwidth (CIK).
9003  * Used for display watermark bandwidth calculations
9004  * Returns the dram bandwidth in MBytes/s
9010 	fixed20_12 yclk, dram_channels, bandwidth;
9020 	bandwidth.full = dfixed_mul(dram_channels, yclk);
9021 	bandwidth.full = dfixed_mul(bandwidth, dram_efficiency);
9023 	return dfixed_trunc(bandwidth);
9027  * dce8_dram_bandwidth_for_display - get the dram bandwidth for display
9031  * Calculate the dram bandwidth used for display (CIK).
9032  * Used for display watermark bandwidth calculations
9033  * Returns the dram bandwidth for display in MBytes/s
9039 	fixed20_12 yclk, dram_channels, bandwidth;
9049 	bandwidth.full = dfixed_mul(dram_channels, yclk);
9050 	bandwidth.full = dfixed_mul(bandwidth, disp_dram_allocation);
9052 	return dfixed_trunc(bandwidth);
9056  * dce8_data_return_bandwidth - get the data return bandwidth
9060  * Calculate the data return bandwidth used for display (CIK).
9061  * Used for display watermark bandwidth calculations
9062  * Returns the data return bandwidth in MBytes/s
9068 	fixed20_12 sclk, bandwidth;
9078 	bandwidth.full = dfixed_mul(a, sclk);
9079 	bandwidth.full = dfixed_mul(bandwidth, return_efficiency);
9081 	return dfixed_trunc(bandwidth);
9085  * dce8_dmif_request_bandwidth - get the dmif bandwidth
9089  * Calculate the dmif bandwidth used for display (CIK).
9090  * Used for display watermark bandwidth calculations
9091  * Returns the dmif bandwidth in MBytes/s
9097 	fixed20_12 disp_clk, bandwidth;
9110 	bandwidth.full = dfixed_mul(b, disp_clk_request_efficiency);
9112 	return dfixed_trunc(bandwidth);
9116  * dce8_available_bandwidth - get the min available bandwidth
9120  * Calculate the min available bandwidth used for display (CIK).
9121  * Used for display watermark bandwidth calculations
9122  * Returns the min available bandwidth in MBytes/s
9126 	/* Calculate the Available bandwidth. Display can use this temporarily but not in average. */
9135  * dce8_average_bandwidth - get the average available bandwidth
9139  * Calculate the average available bandwidth used for display (CIK).
9140  * Used for display watermark bandwidth calculations
9141  * Returns the average available bandwidth in MBytes/s
9152 	fixed20_12 bandwidth;
9160 	bandwidth.full = dfixed_mul(src_width, bpp);
9161 	bandwidth.full = dfixed_mul(bandwidth, wm->vsc);
9162 	bandwidth.full = dfixed_div(bandwidth, line_time);
9164 	return dfixed_trunc(bandwidth);
9173  * Used for display watermark bandwidth calculations
9228  * average and available dram bandwidth
9232  * Check if the display average bandwidth fits in the display
9233  * dram bandwidth (CIK).
9234  * Used for display watermark bandwidth calculations
9248  * average and available bandwidth
9252  * Check if the display average bandwidth fits in the display
9253  * available bandwidth (CIK).
9254  * Used for display watermark bandwidth calculations
9272  * Used for display watermark bandwidth calculations