Lo! Below patch adds the PCI-ID for the Intel(R) Iris Graphics 550 (Skylake GT3e mobile) to libdrm. It afaics is the last piece that is missing to make those GPUs work properly, as Linux 4.6-rc(¹) and Mesa 11.2 already support it â but without this patch I get a "error initializing buffer manager" message from i965 when it tries to load. I tested it on a laptop with a Core i5-6267U and it seems to work -- but I only did a few quick tests so far.
Could someone @Intel please comment if this patch should be enough to make libdrm support this GPU properly? And while at it could you please tell me proper code identifiers for the Iris Graphics 540 and 550? Then I can update the patch to use a better name (I assume the "SKYLAKE_GT3E" I used in my patch is misleading) and add support for the 540 (0x1923) as well. tia, cu, knurd (¹) https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7157bb27e79875db5603aa1e30f56e873a8300f9 diff -Naur libdrm-2.4.67.org/intel/intel_chipset.h libdrm-2.4.67/intel/intel_chipset.h --- libdrm-2.4.67.org/intel/intel_chipset.h 2016-01-17 22:22:14.000000000 +0100 +++ libdrm-2.4.67/intel/intel_chipset.h 2016-04-26 10:53:02.937389821 +0200 @@ -180,6 +180,7 @@ #define PCI_CHIP_SKYLAKE_ULX_GT2 0x191E #define PCI_CHIP_SKYLAKE_MOBILE_GT2 0x1921 /* Reserved */ #define PCI_CHIP_SKYLAKE_GT3 0x1926 +#define PCI_CHIP_SKYLAKE_GT3E 0x1927 #define PCI_CHIP_SKYLAKE_HALO_GT3 0x192B /* Reserved */ #define PCI_CHIP_SKYLAKE_SRV_GT4 0x192A #define PCI_CHIP_SKYLAKE_DT_GT4 0x1932 @@ -390,6 +391,7 @@ (devid) == PCI_CHIP_SKYLAKE_MOBILE_GT2) #define IS_SKL_GT3(devid) ((devid) == PCI_CHIP_SKYLAKE_GT3 || \ + (devid) == PCI_CHIP_SKYLAKE_GT3E || \ (devid) == PCI_CHIP_SKYLAKE_HALO_GT3) #define IS_SKL_GT4(devid) ((devid) == PCI_CHIP_SKYLAKE_SRV_GT4 || \
