Should improve performance slightly and possibly fix some issues.
Signed-off-by: Alex Deucher alexdeucher@gmail.com --- drivers/gpu/drm/radeon/evergreen.c | 38 +++++++++++++++++++++++++++++ drivers/gpu/drm/radeon/evergreend.h | 4 +++ drivers/gpu/drm/radeon/rv770.c | 45 +++++++++++++++++++++++++++++++++++ drivers/gpu/drm/radeon/rv770d.h | 2 + 4 files changed, 89 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 4dc5b47..728358e 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -1382,6 +1382,42 @@ static u32 evergreen_get_tile_pipe_to_backend_map(struct radeon_device *rdev, return backend_map; }
+static void evergreen_program_channel_remap(struct radeon_device *rdev) +{ + u32 tcp_chan_steer_lo, tcp_chan_steer_hi, mc_shared_chremap, tmp; + + tmp = RREG32(MC_SHARED_CHMAP); + switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) { + case 0: + case 1: + case 2: + case 3: + default: + /* default mapping */ + mc_shared_chremap = 0x00fac688; + break; + } + + switch (rdev->family) { + case CHIP_HEMLOCK: + case CHIP_CYPRESS: + tcp_chan_steer_lo = 0x54763210; + tcp_chan_steer_hi = 0x0000ba98; + break; + case CHIP_JUNIPER: + case CHIP_REDWOOD: + case CHIP_CEDAR: + default: + tcp_chan_steer_lo = 0x76543210; + tcp_chan_steer_hi = 0x0000ba98; + break; + } + + WREG32(TCP_CHAN_STEER_LO, tcp_chan_steer_lo); + WREG32(TCP_CHAN_STEER_HI, tcp_chan_steer_hi); + WREG32(MC_SHARED_CHREMAP, mc_shared_chremap); +} + static void evergreen_gpu_init(struct radeon_device *rdev) { u32 cc_rb_backend_disable = 0; @@ -1685,6 +1721,8 @@ static void evergreen_gpu_init(struct radeon_device *rdev) WREG32(DMIF_ADDR_CONFIG, gb_addr_config); WREG32(HDP_ADDR_CONFIG, gb_addr_config);
+ evergreen_program_channel_remap(rdev); + num_shader_engines = ((RREG32(GB_ADDR_CONFIG) & NUM_SHADER_ENGINES(3)) >> 12) + 1; grbm_gfx_index = INSTANCE_BROADCAST_WRITES;
diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h index 113c70c..9644b1c 100644 --- a/drivers/gpu/drm/radeon/evergreend.h +++ b/drivers/gpu/drm/radeon/evergreend.h @@ -180,6 +180,7 @@ #define MC_SHARED_CHMAP 0x2004 #define NOOFCHAN_SHIFT 12 #define NOOFCHAN_MASK 0x00003000 +#define MC_SHARED_CHREMAP 0x2008
#define MC_ARB_RAMCFG 0x2760 #define NOOFBANK_SHIFT 0 @@ -348,6 +349,9 @@ #define SYNC_WALKER (1 << 25) #define SYNC_ALIGNER (1 << 26)
+#define TCP_CHAN_STEER_LO 0x960c +#define TCP_CHAN_STEER_HI 0x9610 + #define VGT_CACHE_INVALIDATION 0x88C4 #define CACHE_INVALIDATION(x) ((x) << 0) #define VC_ONLY 0 diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 4dfead8..24ebd08 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -489,6 +489,49 @@ static u32 r700_get_tile_pipe_to_backend_map(struct radeon_device *rdev, return backend_map; }
+static void rv770_program_channel_remap(struct radeon_device *rdev) +{ + u32 tcp_chan_steer, mc_shared_chremap, tmp; + bool force_no_swizzle; + + switch (rdev->family) { + case CHIP_RV770: + case CHIP_RV730: + force_no_swizzle = false; + break; + case CHIP_RV710: + case CHIP_RV740: + default: + force_no_swizzle = true; + break; + } + + tmp = RREG32(MC_SHARED_CHMAP); + switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) { + case 0: + case 1: + default: + /* default mapping */ + mc_shared_chremap = 0x00fac688; + break; + case 2: + case 3: + if (force_no_swizzle) + mc_shared_chremap = 0x00fac688; + else + mc_shared_chremap = 0x00bbc298; + break; + } + + if (rdev->family == CHIP_RV740) + tcp_chan_steer = 0x00ef2a60; + else + tcp_chan_steer = 0x00fac688; + + WREG32(TCP_CHAN_STEER, tcp_chan_steer); + WREG32(MC_SHARED_CHREMAP, mc_shared_chremap); +} + static void rv770_gpu_init(struct radeon_device *rdev) { int i, j, num_qd_pipes; @@ -688,6 +731,8 @@ static void rv770_gpu_init(struct radeon_device *rdev) WREG32(DCP_TILING_CONFIG, (gb_tiling_config & 0xffff)); WREG32(HDP_TILING_CONFIG, (gb_tiling_config & 0xffff));
+ rv770_program_channel_remap(rdev); + WREG32(CC_RB_BACKEND_DISABLE, cc_rb_backend_disable); WREG32(CC_GC_SHADER_PIPE_CONFIG, cc_gc_shader_pipe_config); WREG32(GC_USER_SHADER_PIPE_CONFIG, cc_gc_shader_pipe_config); diff --git a/drivers/gpu/drm/radeon/rv770d.h b/drivers/gpu/drm/radeon/rv770d.h index b7a5a20..7b1c8f8 100644 --- a/drivers/gpu/drm/radeon/rv770d.h +++ b/drivers/gpu/drm/radeon/rv770d.h @@ -138,6 +138,7 @@ #define MC_SHARED_CHMAP 0x2004 #define NOOFCHAN_SHIFT 12 #define NOOFCHAN_MASK 0x00003000 +#define MC_SHARED_CHREMAP 0x2008
#define MC_ARB_RAMCFG 0x2760 #define NOOFBANK_SHIFT 0 @@ -303,6 +304,7 @@ #define BILINEAR_PRECISION_8_BIT (1 << 31)
#define TCP_CNTL 0x9610 +#define TCP_CHAN_STEER 0x9614
#define VGT_CACHE_INVALIDATION 0x88C4 #define CACHE_INVALIDATION(x) ((x)<<0)