[PATCH 06/30] viafb: Determine type of 2D engine and store it in chip_info

Jonathan Corbet
2010-04-28T22:24:28Z

From: Harald Welte <laforge@gnumonks.org>

This will help us for the upcoming support for 2D acceleration using
the M1 engine.

[jc: fixed merge conflicts]
Signed-off-by: Harald Welte <HaraldWelte@viatech.com>
---
drivers/video/via/chip.h | 8 ++++++++
drivers/video/via/hw.c | 15 +++++++++++++++
2 files changed, 23 insertions(+), 0 deletions(-)

diff --git a/drivers/video/via/chip.h b/drivers/video/via/chip.h
index 8c06bd3..d9b6e06 100644
--- a/drivers/video/via/chip.h
+++ b/drivers/video/via/chip.h
@@ -121,9 +121,17 @@ struct lvds_chip_information {
int i2c_port;
};

+/* The type of 2D engine */
+enum via_2d_engine {
+ VIA_2D_ENG_H2,
+ VIA_2D_ENG_H5,
+ VIA_2D_ENG_M1,
+};
+
struct chip_information {
int gfx_chip_name;
int gfx_chip_revision;
+ enum via_2d_engine twod_engine;
struct tmds_chip_information tmds_chip_info;
struct lvds_chip_information lvds_chip_info;
struct lvds_chip_information lvds_chip_info2;
diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c
index c94bcce..ae664fb 100644
--- a/drivers/video/via/hw.c
+++ b/drivers/video/via/hw.c
@@ -2016,6 +2016,21 @@ static void init_gfx_chip_info(struct pci_dev *pdev,
CX700_REVISION_700;
}
}
+
+ /* Determine which 2D engine we have */
+ switch (viaparinfo->chip_info->gfx_chip_name) {
+ case UNICHROME_VX800:
+ case UNICHROME_VX855:
+ viaparinfo->chip_info->twod_engine = VIA_2D_ENG_M1;
+ break;
+ case UNICHROME_K8M890:
+ case UNICHROME_P4M900:
+ viaparinfo->chip_info->twod_engine = VIA_2D_ENG_H5;
+ break;
+ default:
+ viaparinfo->chip_info->twod_engine = VIA_2D_ENG_H2;
+ break;
+ }
}

static void init_tmds_chip_info(void)
--
1.7.0.1