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Commit 76f62551 authored by Thomas Hellstrom's avatar Thomas Hellstrom Committed by Dave Airlie
Browse files

via: some PCI posting flushes 



Signed-off-by: default avatarDave Airlie <airlied@linux.ie>
parent 21d37bbc

drivers/char/drm/via_dma.c

+3 −1
Original line number Diff line number Diff line
@@ -480,6 +480,7 @@ static int via_hook_segment(drm_via_private_t * dev_priv, 
			VIA_WRITE(VIA_REG_TRANSET, (HC_ParaType_PreCR << 16));

			VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_hi);

			VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_lo);

			VIA_READ(VIA_REG_TRANSPACE);

		}

	}

	return paused;
@@ -557,8 +558,9 @@ static void via_cmdbuf_start(drm_via_private_t * dev_priv) 


	VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_hi);

	VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_lo);



	DRM_WRITEMEMORYBARRIER();

	VIA_WRITE(VIA_REG_TRANSPACE, command | HC_HAGPCMNT_MASK);

	VIA_READ(VIA_REG_TRANSPACE);

}



static void via_pad_cache(drm_via_private_t * dev_priv, int qwords)

drivers/char/drm/via_dmablit.c

+2 −0
Original line number Diff line number Diff line
@@ -218,7 +218,9 @@ via_fire_dmablit(drm_device_t *dev, drm_via_sg_info_t *vsg, int engine) 
	VIA_WRITE(VIA_PCI_DMA_MR0  + engine*0x04, VIA_DMA_MR_CM | VIA_DMA_MR_TDIE);

	VIA_WRITE(VIA_PCI_DMA_BCR0 + engine*0x10, 0);

	VIA_WRITE(VIA_PCI_DMA_DPR0 + engine*0x10, vsg->chain_start);

	DRM_WRITEMEMORYBARRIER();

	VIA_WRITE(VIA_PCI_DMA_CSR0 + engine*0x04, VIA_DMA_CSR_DE | VIA_DMA_CSR_TS);

	VIA_READ(VIA_PCI_DMA_CSR0 + engine*0x04);

}



/*