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-- GPU: Arc B580 temperatures, VRAM in use and fan speed.
--
-- No utilisation figure, deliberately. The xe driver exposes no
-- gpu_busy_percent and intel_gpu_top refuses the device outright ("Detected Xe
-- device which is not supported"). VRAM comes from DRM fdinfo, the per-client
-- counters gputop itself reads (see data.drm_vram).
--
-- The integrated AMD GPU does expose gpu_busy_percent and is deliberately not
-- shown: the discrete card is the one in use.
local card = require 'lib.card'
local data = require 'lib.data'
local M = {}
-- The B580's VRAM. fdinfo reports what clients hold, not the card's size, and
-- xe puts no capacity in sysfs. ponytail: hardcoded like the 'ARC B580' label.
local VRAM_TOTAL = 12 * 1024 ^ 3
-- fdinfo is a popen over every fd on the system, so sample it every ~2s, not
-- every frame.
local gate = data.new_gate(1.9)
local vram
-- chip, file, label, warn, crit. Package (temp2) is the headline above, so it
-- is not repeated here; these are the rows drawn under it.
local TEMPS = {
{ 'xe', 'temp3_input', 'VRAM', 80, 90 },
}
function M.draw(cr, rect, colors)
local inner = card.card(cr, rect, colors)
local function clamp(v, lo, hi) return math.max(lo, math.min(hi, v)) end
if gate() then vram = data.drm_vram() end
local pkg = data.sensor('xe', 'temp2_input')
local big_txt = pkg and string.format('%d\u{00B0}', pkg) or '--'
-- Fluid type. One base size S drives every element. The cell's height sets
-- how large the content grows; the measured width fit pulls S back down
-- only where the header or a row would overrun the card. So a tall cell
-- gets larger type instead of empty space, and nothing ever collides.
local LABEL_F, ROW_F = 0.32, 0.34
local row_n = #TEMPS + 2 -- VRAM + MEM + FAN
local S_h = inner.h * 0.94 / (2.088 + row_n * 0.646 + 0.3) -- + MEM bar
local groups = {
{ { card.title_str(card.ICON.gpu, 'GPU'), card.FONT_MONO, LABEL_F },
{ big_txt, card.FONT_HEAVY, 1.0 } },
{ { 'ARC B580', card.FONT_MONO, LABEL_F } },
}
for _, t in ipairs(TEMPS) do
groups[#groups + 1] = { { t[3], card.FONT_MONO, ROW_F },
{ '888\u{00B0}', card.FONT_MONO, ROW_F } }
end
groups[#groups + 1] = { { 'MEM', card.FONT_MONO, ROW_F },
{ '100%', card.FONT_MONO, ROW_F } }
groups[#groups + 1] = { { 'FAN', card.FONT_MONO, ROW_F },
{ '8888 RPM', card.FONT_MONO, ROW_F } }
local S = clamp(math.min(S_h, card.fit_unit(cr, inner.w * 0.96, groups, 100)), 10, 72)
local label_size = S * LABEL_F
local row_size = S * ROW_F
local y = inner.y
-- The package temperature is the headline, since there is no load to show.
-- It shares the header line with the label, set on the same baseline and
-- right-aligned, so the card's width carries the number rather than leaving
-- the right half empty under a left-set value.
card.font(cr, card.FONT_HEAVY, S, false)
card.rgba(cr, pkg and card.threshold(pkg, 75, 85, colors) or colors.label)
card.text_right(cr, inner.x + inner.w, y + S, big_txt)
card.font(cr, card.FONT_MONO, label_size, false)
card.title(cr, inner.x, y + label_size, card.ICON.gpu, 'GPU', colors)
card.rgba(cr, colors.value)
card.text(cr, inner.x, y + S + label_size * 1.7, 'ARC B580')
local ey = y + S + label_size * 3.4
local step = row_size * 1.9
card.font(cr, card.FONT_MONO, row_size, false)
for _, t in ipairs(TEMPS) do
if ey + step > inner.y + inner.h then break end
local v = data.sensor(t[1], t[2])
card.rgba(cr, colors.label)
card.text(cr, inner.x, ey, t[3])
card.rgba(cr, v and card.threshold(v, t[4], t[5], colors) or colors.label)
card.text_right(cr, inner.x + inner.w, ey,
v and string.format('%d\u{00B0}', v) or '--')
ey = ey + step
end
-- VRAM as a fraction of the card's, a bar under the row like RAM in system.
local bar_h = S * 0.12
if ey + step + bar_h + S * 0.1 <= inner.y + inner.h then
local frac = vram and vram / VRAM_TOTAL
local colour = frac and card.threshold(frac * 100, 25, 75, colors) or colors.label
card.rgba(cr, colors.label)
card.text(cr, inner.x, ey, 'MEM')
card.rgba(cr, colour)
card.text_right(cr, inner.x + inner.w, ey,
frac and string.format('%d%%', math.floor(frac * 100 + 0.5)) or '--')
card.bar(cr, inner.x, ey + row_size * 0.6, inner.w, bar_h, frac, colour, colors)
ey = ey + step + bar_h + S * 0.1
end
-- Fan RPM is not a temperature, so it carries no threshold colour: a fast
-- fan is the cooling working, not a fault.
if ey + step <= inner.y + inner.h then
local rpm = data.sensor_raw('xe', 'fan1_input')
card.rgba(cr, colors.label)
card.text(cr, inner.x, ey, 'FAN')
card.rgba(cr, colors.value)
card.text_right(cr, inner.x + inner.w, ey,
rpm and string.format('%d RPM', rpm) or '--')
end
end
return M
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